DE202019005332U1 - Device for filtering components from a fluid - Google Patents

Abstract

Apparatus (30) for separating components from a fluid, the apparatus comprising:
- At least one, in particular elongated or tubular, filter module (1) with filter housing (35) and a membrane element (16) arranged therein, the at least one filter module having a first end face (22) and a second end face opposite the first end face, and wherein the filter module provides a capillary side and an envelope side for the at least one fluid flowing through the filter module for generating a capillary flow and an envelope flow in each of the filter modules,
- A first filter cap (2) on the first end face of the at least one filter module with a first chamber (3) and a second chamber (4) and at least one filter module receptacle (42),
- A second filter cap (2a) on the second end of the at least one filter module opposite the first end, with a further filter module receptacle, the first chamber of the first filter cap being connected to the capillary sides of the filter modules and the second chamber of the first filter cap being connected to the envelope sides of the Filter modules is connected, so that the capillary flows of the filter module or modules are mixed with one another in the first chamber and so that the envelope flows of the filter module or modules are mixed with one another in the second chamber.

Description

Field of the invention

The invention relates to a filtration device, a filter for a filtration device and a filter cap, in each case in particular for the purpose of dialysis

Background and general description of the invention

Dialysis is best known as a method of treating kidney failure. Dialysis is actually the exchange of substances by diffusion across a semipermeable membrane, with dissolved molecules migrating from highly concentrated liquids into weakly concentrated solutions (dialysis solution). There are also technical separation tasks in which, for example, the gentle separation of substances from mostly liquid mixtures is required. Such a mixture can be a disperse medium or, for example, a solution in which further constituents are dissolved in a base material. An example of such an application can be the separation of alcohol from beer to produce alcohol-free beer. A particularly gentle process enables alcohol to be removed with minimal impairment of the taste. Particularly in the area of these technical applications, there is currently intensive search for further developments, for example to increase the throughput of the medium to be filtered, or to further reduce costs. In contrast to medical devices, much larger membrane areas are required for technical systems.

Dialyzers also serve as the basis for further refinements. For example, dialyzers can be used to refine the membranes on the lumen side with a proprietary coating. The dialyzers refined in this way can therefore be used for forward osmosis.

In general, the flow guidance within the dialyzer is important for the resulting performance. Due to their construction, dialyzers have very good requirements.

Dialyzers are commercially available almost exclusively for hemodialysis. The quality is very good and the prices based on the membrane area are affordable. However, the size of the dialyzers is tailored to the medical application and with a membrane area of just a few square meters is very small. In order to use such units for technical applications or for applications with a higher fluid throughput, complex reworking is necessary in order to produce larger units from the relatively small units, which can be usefully used in technical systems with greater processing capacity.

Another limitation is the limited mechanical and chemical stability. Since dialyzers are optimized for medical use under very gentle operating conditions on the human body, they cannot withstand higher loads such as high temperatures (up to 60 ° C) or high transmembrane pressures (over 3 bar) for long periods of time without damage. In the case of high volume flows on the “shell side”, there is a risk of mechanical overloading of the membranes in the area of the side port due to the cross flow occurring there. High flow velocities repeatedly lead to membrane damage in this area. Aggressive chemicals, which are used at least for cleaning, also attack dialyzers and lead to short operating times.

Also, because of the medical target application, certifications for e.g. food or drinking water use are practically impossible to obtain.

Another limitation lies in the specified geometries for membrane capillaries and dialyzers. Adjustments to requirements from litigation for z. B. high viscosities and / or low pressure losses in the flow are practically impossible.

The present invention has therefore set itself the task of solving the aforementioned problems or at least introducing improvements thereto. Specifically, the invention has set itself the task of making dialysis accessible for technical requirements. For this purpose, the task has also been set to increase the filter throughput and to improve the service life of the system, i.e. to increase the time between possible failures of dialyzers.

In addition, the present invention is also concerned with increasing the economic efficiency of the use of dialyzers, particularly in technical areas, so that, if necessary, new applications can only be developed for the use of dialyzers or the process costs are reduced. Another aspect of the underlying problem is to design a device that is easy to handle for a user and that can also be cleaned well, for example, which is an important requirement in the food sector in particular.

The object is achieved by the subjects of the independent claims. Advantageous further developments of the invention are the subject matter of the dependent claims.

The improvements proposed in this specification, from a technical point of view, among other aspects, focus on providing a device which is suitable for separating components from a fluid. Such a separation is, for example, the filtration of a fluid, i.e. the dissolving of substances from a solution, the stripping or separation of suspended matter from a disperse medium such as a suspension, or also for osmosis, especially forward osmosis.

The device according to the invention comprises at least one, in particular elongate or tubular, filter module with filter housing and membrane element arranged therein, in particular membrane capillaries. The at least one filter module has a first end face and a second end face opposite the first end face, the filter module providing a capillary side and an envelope side for the at least one fluid flowing through the filter module for generating a capillary flow and an envelope flow in each of the filter modules. In other words, it is preferred if in the filter module a first fluid flows on the capillary side and a second fluid flows on the shell side.

The capillary flow is the flow on the first side of the filter layer, that is, typically on the inside of the filter layer. In the case of capillary tubes, that is to say membrane capillaries or membrane tubes, the capillary flow is inside the membrane element, which is called the capillary side or also called the lumen side. In this case, a multiplicity of membrane capillaries or membrane tubes are typically included in the membrane element. In the case of a membrane absorber, this is a first side of the membrane absorber.

The envelope flow is the flow on the second side of the filter layer, that is, typically on the outside of the filter layer, also called the “shell side”. In the case of capillary tubes, the envelope flow is therefore on the outside of the capillary envelopes, or along the envelope of the filter module. In the case of the membrane absorber, this is a second side of the membrane absorber.

The capillary flow can flow in the same direction as the envelope flow or, depending on the application, also in the opposite direction. The envelope flow or the capillary flow can also flow comparatively slowly, or quasi stand still, so that there is a flow velocity difference between the envelope flow and the capillary flow. The flow velocities are set so that an optimal exchange can be achieved in the dialyzer or in the filter device.

The device also has a first filter cap on the first end face of the at least one filter module with a first chamber and a second chamber and at least one filter module receptacle. The filter module or the filter modules are plugged into the filter module receptacle (s), for example, so that part of the housing protrudes into the filter cap.

The filter cap is designed in such a way that the first chamber of the filter cap is connected to the capillary sides of the filter modules and at the same time the second chamber of the filter cap is connected to the envelope sides of the filter modules. The capillary flows of the filter module (s) mix with one another in the first chamber, and the envelope currents of the filter module (s) are mixed with one another in the second chamber.

The device also has a second filter cap on the second end face of the at least one filter module, opposite the first end face, with a further filter module receptacle. In one example, the second filter cap can be mirror-symmetrical to the first filter cap, that is to say constructed in the same way as the first filter cap. With regard to the flow guidance, the second filter cap can preferably also be designed in such a way that it is designed for the fluid supply into the filter module and the first filter cap is designed for the fluid discharge from the filter module. The second filter cap can be arranged on the underside of the filter module or modules. In that case, the second filter cap can have fastening or support means in order to stabilize the device or to stabilize it in a set-up arrangement.

The first filter cap can have a first connection which is connected to the first chamber in a communicating manner. For example, the first connection is designed as a drain so that the fluid can flow out there. The first connection can also be designed as an inlet. The connection can be implemented, for example, as a hose connection, a screw connection or a flange, so that a pipe or a hose or the like can be connected to it in order to lead the first fluid to the first filter cap or to lead it away from the first filter cap.

The first filter cap can have a second connection, that is to say for example a second outlet or second inlet which is connected to the second chamber in a communicating manner. In other words, the connection can be designed so that a supply of fluid is enabled. In a preferred embodiment, the fluid flows through the filter module in the same direction both on the capillary side and on the shell side, so that the first connection is a first drain and the second connection is a second drain.

A sealing element is preferably arranged between the first chamber and the second chamber to seal off the capillary flow from the envelope flow. This sealing element can be arranged on the outside of the housing of the filter module so that it is arranged between the first chamber and the second chamber when the filter module is inserted into the filter cap and seals the two chambers from one another.

The sealing element can thus be arranged in such a way that it seals the first chamber against the second chamber when the filter module or modules is / are inserted into the filter module receptacle.

The first and / or the second filter cap can furthermore have an outer, in particular axial, capillary flow channel which connects the first connection to the first chamber.

For this purpose, the first and / or the second filter cap can also have a capillary flow opening on the radial side. In addition, the first and / or the second filter cap can have an envelope flow opening on the radial side.

The filter module can have a plurality of envelope flow openings arranged on the circumference of the filter housing, so that the envelope flow is distributed over the plurality of envelope flow openings. In this way, a distributed inflow of the envelope flow into the filter module or a distributed outflow of the envelope flow from the filter module can be implemented. In particular, if the envelope flow openings are distributed uniformly over the radial direction of the filter module, the load, such as pressure load on the membrane element, can be significantly reduced by uniform flow distribution. A lower mechanical load on the membrane elements can mean an increased reliability of the device if the membrane elements can achieve longer service lives.

At least some of the radial envelope flow openings are preferably arranged in a common plane along the radial length of the filter housing. They are therefore arranged in a common plane which is perpendicular to the direction of extent of the filter module, and are distributed, for example, radially around the filter housing. For example, two enveloping flow openings are arranged opposite one another, so that the pressure surge occurring due to the inflow or outflow of the enveloping medium is reduced, possibly even canceled out, and the mechanical load on the membrane element is thereby reduced.

The first and / or the second filter cap can furthermore have a support receptacle for receiving a support element connecting the first to the second filter cap. Such a support element can be a rod-shaped connecting element which is screwed, welded or glued into the first filter cap, for example, and to which the second filter cap can be attached and screwed, for example, with a connecting means such as a screw nut. A screw connection enables the same to exert a pressing force between the two filter caps on the filter module, so that if necessary the tightness can be increased and / or a tight fit can be achieved in pressure applications in which, for example, there are fluid pressures that are higher than the ambient pressure , for example in the range from 2 to 10 bar.

The support receptacle is arranged in particular between the filter modules. The support receptacle can comprise a screw sleeve which is glued, welded or otherwise fastened into one of the filter heads, for example. The support receptacle can further or alternatively comprise at least one securing element. This securing element can be arranged on the filter housing. For example, the securing element can comprise a snap ring or several snap rings.

The support receptacle is preferably at a distance from the fluid flows, so that the support element is not in contact with the fluid flows in the installed state.

Depending on the application, the size of the device or the filter modules, more than one support receptacle can also be provided so that the support elements can also stabilize the device at the same time. For example, two or four support receptacles can be provided per filter cap. The support receptacles can each be arranged between two filter modules. The support receptacles can also all be arranged in an inner region between the filter modules, so that the filter modules are arranged around the support receptacles on the outside.

The filter module receptacle of the first or second filter cap can have a lateral collar in order to cover a filter module inserted into the filter module receptacle beyond a radial-side enveloping flow opening, so that the The end capillary flow opening and the radial-side enveloping flow opening can be inserted into the filter cap and the fluid connection of the capillary flow with the first chamber and the enveloping flow with the second chamber takes place during insertion.

The first and / or second filter cap can each have a filter module stop for each filter module receptacle. A filter module can, for example, rest with its front end against the filter module stop when it is completely inserted or pushed into the filter module receptacle. For example, the correct mounting of the filter module in the filter module mounting can then be ensured using the filter module stop. The filter module cannot be inserted too deeply if this should be possible otherwise, so that, for example, the capillary flow is not impaired.

The device typically comprises two or more filter modules which are inserted jointly into the first filter cap on the first end face. These can in particular be 2, 3, 4, 5, 6, 7, 8 or a plurality of filter modules which are in particular arranged next to one another and in particular have substantially identical dimensions or at least the same length to one another.

The filter modules are preferably arranged symmetrically or concentrically around the support receptacle

Each filter module can have a fluid barrier, in particular made of potting compound, on at least one side. The fluid barrier separates the capillary flow inside the filter module from the envelope flow. For example, the end of the membrane can also be welded to the fluid barrier, so that the capillary side and the shell side are separated.

The fluid barrier can preferably be designed to stabilize the membrane element. This can be achieved when the fluid barrier is placed on the membrane element. The fluid barrier preferably produces a mechanical connection between the membrane element and the housing, in particular between the filter capillaries and the housing.

The device can furthermore have a filter element fixing device for fixing the filter element or elements in the filter cap. For example, the filter element fixing is designed as a disk or mounting plate, at least some of the filter elements being passed through openings in the filter element fixing device and in particular being fixed on or in the opening.

For this purpose, the filter element fixing device can have at least one screw thread, for example. Alternatively or cumulatively, the filter element fixing device can have one or more bayonet connectors and / or one or more locking pins for pairable connection or securing of the respective filter element to the filter element fixing device.

If the filter elements have no or only a slight temperature difference to the filter cap, they can have a larger diameter than the inner diameter of the filter element receptacle. This makes it possible to thermally fix the filter elements on or in the filter cap, for example by heating the filter cap before the filter elements are inserted and thereby expanding it. On the other hand, the filter elements can also be cooled before being installed in or on the filter cap. In other words, a temperature difference between the filter cap and the filter elements is applied to or in the filter cap before the filter elements are installed.

The invention further comprises a filter module for a device for separating components from a fluid, in particular as described above. The filter module comprises an, in particular elongate or tubular, filter housing, a membrane element arranged in the filter housing, the filter module having a first end face and a second end face opposite the first end face.

For the at least one fluid flowing through the filter module, the filter module provides a capillary side and an envelope side for generating a capillary flow and an envelope flow in each of the filter modules. The filter module also has a plurality of envelope flow openings arranged on the circumference of the filter housing, which are arranged in a plane along the radial length of the filter housing, so that the envelope flow is distributed radially over the plurality of envelope flow openings.

The invention further comprises a filter cap for a device for separating components from a fluid, in particular as described above, which can in particular be arranged on a plurality of filter modules, as explained above. The filter cap comprises a first chamber, a second chamber, and at least one filter module receptacle, the first chamber of the filter cap being connected to the capillary sides of the filter modules inserted into the filter cap is when the filter modules are inserted into the filter cap, and wherein the second chamber of the first filter cap is connected to the envelope sides of the filter modules when the filter modules are inserted into the filter cap, so that the capillary flows of the filter modules are mixed with one another in the first chamber and so that the envelope flows of the filter modules are mixed with one another in the second chamber.

The invention finally comprises a method for producing or providing a device for separating components from a fluid, in particular as described above, with the steps of providing a first filter cap with a first chamber and a second chamber and at least one filter module holder; Introducing (i.e. e.g. plugging in or screwing in) at least one, in particular elongate or tubular, filter module with filter housing and membrane element arranged therein, in particular membrane capillaries, with a first end face into a filter module receptacle of the first filter cap; Attaching a second filter cap to the second end face of the at least one filter module opposite the first end face, the filter module providing a capillary side and an envelope side for the at least one fluid flowing through the filter module for generating a capillary flow and an envelope flow in each of the filter modules; and wherein the first chamber of the first filter cap is connected to the capillary sides of the filter modules and wherein the second chamber of the first filter cap is connected to the envelope sides of the filter modules, so that the capillary flows of the filter module or modules in the first chamber are mixed with one another and so that the Envelope flows of the filter module or modules are mixed with one another in the second chamber.

Furthermore, the step of frictional connection of the first filter cap to the second filter cap by means of a support element can be included.

The invention is explained in more detail below using exemplary embodiments and with reference to the figures, with identical and similar elements in some cases being provided with the same reference numerals and the features of the various exemplary embodiments being able to be combined with one another.

Figure list

• 1 Seitenansicht einer Vorrichtung zur Filtrierung eines Fluids,
• 2 perspektivische Ansicht einer Vorrichtung,
• 3 Aufsicht auf eine Filterkappe einer Vorrichtung,
• 4 Seitenansicht einer weiteren Ausführungsform einer Vorrichtung,
• 5 Schnittansicht eines Filtermoduls,
• 6 Aufsicht auf ein Filtermodul,
• 7 Schnittansicht eines Details einer Vorrichtung,
• 8 Schnittansicht eines Details einer weiteren Ausführungsform der Vorrichtung,
• 9 Schnittansicht durch einen Ausschnitt der Vorrichtung,
• 10 Schnittansicht durch eine Filterkappe entlang der Linie B-B,
• 11 eine Schnittansicht durch die Filterkappe entlang der Linie C-C,
• 12 perspektivische Ansicht auf ein Filtermodul,
• 13 perspektivisches Detail einer Stirnseite eines Filtermoduls,
• 14 Detailschnitt eines Filtermoduls,
• 15 Detailschnitt einer weiteren Ausführungsform eines Filtermoduls,
• 16 Seitenansicht einer weiteren Ausführungsform eines Filtermoduls,
• 17 Schnittansicht einer weiteren Ausführungsform eines Details einer Vorrichtung mit Filtermodulen gemäß 16,
• 18 eine Seitenansicht einer Vorrichtung mit Filterelementfixiereinrichtung,
• 19a perspektivische Ansicht einer Filterelementfixiereinrichtung,
• 19b weitere perspektivische Ansicht einer Filterelementfixiereinrichtung,
• 20 Aufsicht auf eine weitere Ausführungsform einer Filterkappe,
• 21 Schnitt entlang der Linie D aus 18,
• 22 Schnitt entlang der Linie C aus Fig. 18,
• 23 Schnitt entlang der Linie A aus 18,
• 24 Seitenansicht eines Filterelements mit Detail A,
• 24a Detailansicht des Bereichs A aus 24,
• 25 Schnittansicht entlang der Linie B der 20,
• 26 weitere Ausführungsform einer Vorrichtung zur Filtrierung eines Fluids mit vier Filterelementen,
• 27 Detailansicht des Ausschnitts A der 26,
• 28 Schnittansicht entlang der Linie B der 26,
• 29 Detailansicht einer weiteren Ausführungsform eines Filtermoduls,
• 30 Schnittansicht einer Vorrichtung einer weiteren Ausführungsform,
• 31 Schnittansicht einer weiteren Ausführungsform einer Vorrichtung,
• 32 perspektivische Ansicht auf eine weitere Ausführungsform einer Filterkappe,
• 32a Ausführungsform eines Filtermoduls geeignet zum Einsatz in die Filterkappe gemäß 32,
• 33 eine weitere Ausführungsform einer Filterkappe,
• 33a Filtermodul geeignet zum Einsatz in die Filterkappe gemäß 33,
• 34 Schnittansicht einer Vorrichtung gemäß einer weiteren Ausführungsform,
• 35 Schnittansicht einer weiteren Ausführungsform der Vorrichtung,
• 36 weitere Schnittansicht durch eine weitere Ausführungsform der Vorrichtung,
• 37 Schnitt durch noch eine weitere Ausführungsform der Vorrichtung.

Show it:

• 1 Side view of a device for filtering a fluid,
• 2 perspective view of a device,
• 3 Top view of a filter cap of a device,
• 4th Side view of a further embodiment of a device,
• 5 Sectional view of a filter module,
• 6th Supervision of a filter module,
• 7th Sectional view of a detail of a device,
• 8th Sectional view of a detail of a further embodiment of the device,
• 9 Sectional view through a section of the device,
• 10 Sectional view through a filter cap along the line BB,
• 11 a sectional view through the filter cap along the line CC,
• 12th perspective view of a filter module,
• 13th perspective detail of an end face of a filter module,
• 14th Detail section of a filter module,
• 15th Detailed section of a further embodiment of a filter module,
• 16 Side view of a further embodiment of a filter module,
• 17th Sectional view of a further embodiment of a detail of a device with filter modules according to FIG 16 ,
• 18th a side view of a device with filter element fixing device,
• 19a perspective view of a filter element fixing device,
• 19b Another perspective view of a filter element fixing device,
• 20th Top view of a further embodiment of a filter cap,
• 21 Cut along line D. 18th ,
• 22nd Section along the line C from Fig. 18th ,
• 23 Cut out along line A. 18th ,
• 24 Side view of a filter element with detail A,
• 24a Detail view of area A. 24 ,
• 25th Sectional view along line B of 20th ,
• 26th Another embodiment of a device for filtering a fluid with four filter elements,
• 27 Detailed view of section A of 26th ,
• 28 Sectional view along line B of 26th ,
• 29 Detailed view of a further embodiment of a filter module,
• 30th Sectional view of a device of a further embodiment,
• 31 Sectional view of a further embodiment of a device,
• 32 perspective view of a further embodiment of a filter cap,
• 32a Embodiment of a filter module suitable for use in the filter cap according to 32 ,
• 33 another embodiment of a filter cap,
• 33a Filter module suitable for use in the filter cap according to 33 ,
• 34 Sectional view of a device according to a further embodiment,
• 35 Sectional view of a further embodiment of the device,
• 36 further sectional view through a further embodiment of the device,
• 37 Section through yet another embodiment of the device.

Detailed description of the invention

1 shows a first embodiment of a device 30th for filtering a fluid in a side view, with two filter modules 1 in the device 30th are shown. The device shown 30th can, for example, have two or four filter modules 1 include, the representation shown would not differ. The embodiment of the 1 should have four filter modules 1 include. That or the filter module 1 can, for example, be used as cartridges 1 be designed, more specifically as a replaceable cartridge 1 , with a filter module 1 can be replaced as a unit, for example in the event of a defect or wear.

About filter caps 2 , 2a the filter modules 1 laterally (in the illustration of the 1 ) or on their respective end faces 22nd connected. The filter caps 2 , 2a or filter caps 2 , 2a ensure the desired fluid flow. On each filter cap 2 a connection to the “shell side” 23, 23a or to the envelope flow and to the “lumen side” 24, 24a or to the capillary flow is arranged. The filter modules 1 are designed to be interchangeable with one another in this embodiment, that is to say in particular have identical or approximately the same external dimensions. This has the practical advantage that each filter module 1 with any exchange module (see e.g. 5 ) can be exchanged.

2 shows a further embodiment of the device 30th in a perspective view. In this embodiment there are 4 filter modules 1 "Interconnected" and in the common filter caps 2 , 2a used. For guiding the fluid in the filter cap 2 is a distribution channel 6th external and integral with the filter cap 2a formed, which is inside the filter cap 2a with each capillary connection of the filter modules 1 communicates. The envelope flow is via the connection 23 connected, i.e. from the filter cap 2a discharged or into the filter cap 2a introduced, depending on the connection direction. The embodiment of the device shown 30th is shown universally in this regard with regard to the flow direction (s), it can therefore be operated in all flow combinations, both in countercurrent and co-flowing, both "from top to bottom" (in the illustration) and "from bottom to top". This universality increases the profitability of production, since the same device is used for a wide variety of applications 30th can be used.

The connections 23 , 23a , 24 , 24a are equipped in this embodiment with hose nozzles or hose connections, so that a hose can be pushed on there and, for example, fixed and sealed with a hose clamp or the like.

3 shows a plan view of a filter cap 2 a device 30th , where first and second connector 23 , 24 on top of the filter cap 2 are arranged. The second connection 24 is with the distribution channel 6th in fluid communication. A fastening device is central 32 arranged, for example, there can be a threaded rod 33 from inside the device 30th through the filter cap 2 be led through and from outside with a mother 34 secured. In 3 dashed section lines D and E are shown, which indicate the location of the drawings 7th and 9 symbolizes.

4th shows a further embodiment of the device according to the invention 30th with two filter modules 1 , a first filter cap 2 and a second filter cap 2a . The connections 23 , 23a , 24 , 24a are on the side of the filter heads 2 , 2a arranged and equipped, for example, with screw connections to corresponding pipe or hose lines at the connections 23 , 23a , 24 , 24a to connect.

Throughout the description of the figures, the same reference symbols indicate the same objects, it being possible for the objects to be designed differently from one another, but to fulfill the same function.

5 shows a sectional view of an embodiment of a filter module 1 , which is a filter housing 35 or cladding tube 35 having. Such a cartridge 1 has a membrane element 16 in the form of a capillary bundle 16 on that in the cladding tube 35 is embedded. The capillary bundle 16 is through a potting compound 20th with the cladding tube 35 connected.

The cladding tube is used for guiding the fluid 35 at the end of the capillary bundle, but inside the potting compound 20th , with radial openings 21 provided for access to the “shell side”, which in this embodiment is the area between the capillaries 16 inside the cladding tube 35 to enable. How 6th shows, the openings can 21 evenly on the circumference of the cladding tube 35 be distributed. The incoming or outgoing fluid flow is due to the large open area that the openings 21 together provide low, and the occurring transverse forces acting on the membranes 16 near the openings 21 could act, small compared to the prior art, even at high volume flows. This results in a low mechanical load on the membranes and thus a lower risk of membrane rupture and increased reliability in operation.

The capillaries shown 16 the 5 are on the front sides 22nd open. Here the fluid reaches the “lumen side” inside the capillaries 16 or out of these and into the filter cap 2 , 2a . The filter modules 1 show in the embodiment of 5 and the 6th a groove 37 on, in which, for example, a sealing element can be used. The use of a sealing element in the groove 37 can be useful for use in the food industry, for example, because it can be designed in such a way that it prevents moisture such as cleaning solutions from entering the device from outside 30th can prevent or suppress.

6th shows a side view of a filter module 1 with filter housing 35 and the side openings 21 for connecting the envelope flow inside the filter module 1 .

7th shows a sectional view of a detail of a device assembled according to the invention 30th at which the ends 22nd the filter modules 1 in module mounts 42 the filter cap 2 are built in. The "Lumen Side" connection 8th guides the fluid through a distribution channel 6th distributed and through openings 7th into the "Lumen Side" chambers 3 . From there the fluid reaches the end faces 22nd the cartridges 1 into the cartridge. The “Shell Side” chambers 4th get the fluid through the "shell side" holes 9 . From there the fluid reaches the side openings 21 on the "shell side" of the cartridges 1 . The chambers 3 , 4th are against each other and to the outside via appropriate seals 5 sealed. attacks 10 secure the cartridges 1 against axial displacement. Alternatively, it can also be secured, for example, by means of snap rings on the cartridges.

8th shows a further sectional view of a detail of an alternative design of the device 30th , with the fluids directly via suitably designed chambers 3 , 4th can be distributed. In the "Shell Side" chamber 4, the corresponding fluid is applied to the cartridges 1 distributed or from the cartridges 1 recorded.

In 9 is the spacer for the filter caps 2 , 2a shown. A backup 34 , here a nut, holds the filter cap 2 , 2a tight so that between the filter caps 2 , 2a one through the spacer 32 the specified distance is maintained even when operating with increased internal pressure. The transition from the “shell side” connection to the distribution wells is also shown. For modules with 6 or more cartridges, more spacers should be used to relieve the larger filter caps evenly.

The distribution of the fluid within the filter cap 2 on the "lumen side" is carried out through a distribution channel through openings 7th . These openings are so large that the fluid can enter the “lumen side” chambers 3 without hindrance. In extreme cases, the openings are so large that the distribution channel is open along the entire length to the "Lumen Side" chambers.

10 shows a sectional view through the filter cap 2 along the line BB, as in 9 is shown. The section shows the first chambers 3 the filter cap 2 , The individual chambers are brought together via the openings 7th . The fastening device is central 32 arranged.

11 shows a sectional view through the filter cap 2 along the line CC. The distribution of the fluid within the filter cap 2 In this embodiment, the “shell side” takes place through connection channels 11 , for example designed as bores or provided by a casting or compression mold by means of molding. These connecting channels 11 are dimensioned in such a way that the fluid can freely enter the “shell side” chambers 4 or be removed from them. The connection channels can be designed in such a way that the “shell side” chambers are connected to form a large chamber, so that the connection channels form an integral part of the second chamber 4th form. The fluid supply to the cartridges 1 preferably takes place so that the lowest possible transverse load on the membrane capillaries 16 is given and thus membrane ruptures due to high cross currents in the area of the "shell side" openings 21 can be avoided. A Discharge or supply of the fluid into or from the second chamber 4th can by means of a hole 9 which in this example take place directly on one of the transverse channels 11 is arranged.

Referring to 12th Figure 3 is a perspective view of a filter module 1 shown, the membrane capillaries 16 on the front sides 22nd are open. The envelope flow can be through lateral openings 21 are supplied or discharged. 13th shows a detail from 12th , one way of arranging the membrane element 16 in the filter module 1 is shown. The membrane element 16 is as an adjacent bundle of membrane capillaries 16 executed, the envelope flow flushing through between the individual membrane capillaries and at the side openings 21 is discharged or supplied.

The cartridges 1 can be produced in a casting process. 13th shows an embodiment in which the connection between the cladding tube 35 and the membranes 16 by thermal welding or ultrasonic welding 20th with the end 12th of the capillaries 16 or tubes 16 at the respective end or ends 22nd of the cladding tube 35 connect to.

14th shows a further alternative embodiment in which a mechanical seal is implemented, for example by means of a sealing element 14th like an O-ring 14th between bundles of membranes 16 and cladding tube 35 . The tube sheet 13th can for example consist of a thermoplastic material or of potting compound 20th . Alternatively, the tube sheet 13th made of thermoplastic material 20th be constructed, in this case the membrane elements 16 for example at their end 12th with the tube sheet 13th welded. The ends 12th the membrane elements 16 stay with the capillary flow connection 15th open to. For example, the membrane elements 16 in the area of the ends 12th be robotically or manually welded on their outer sides in order to adjust the sealing effect for the envelope flow.

15th shows the use as a membrane absorber, for which the cartridge concept of the device 30th is also suitable. The flow guidance is here within the cartridge 1 in such a way that the supplied fluid enters the cartridge via the “shell side” connection 21 1 got. There the fluid penetrates the cartridge 1 especially with the release of ingredients to the absorber 18th . The absorber 18th is designed as a hollow cylinder. The fluid enters the other end of the module 1 through the "Lumen Side" connection 15 of the cartridge 1 out. Alternatively, both “LumenSide” connections 15 can be on the two end faces 22nd of the filter module 1 be used for fluid inlet and outlet. In rinsing mode, both connections are used on the “shell side” to clean the outer absorber surface. The same applies to the two "Lumen Side" connections to clean the inner absorber surface. The absorber is over an end plate 19th with the cladding tube 35 connected. These connections are made by gluing. Alternatively, the end plate 19th can also be produced as a potting block.

16 shows a further embodiment of a filter module 1 , which, for example, differs from the 6th another groove 38 having. In the further groove 38 For example, a position securing element (see 17th ) be used, such as a snap ring in particular.

17th finally shows a detail for a device 30th at which filter modules 1 according to the example of 16 are used. The filter cap 2 has no filter stops in this embodiment 10 on. Rather, the filter modules 1 in this embodiment via a position securing element 39 , by means of which a built-in fuse for the filter modules 1 in the filter cap 2 can be achieved.

To build the cartridges 1 there are membrane capillaries 16 , the potting compound and the cladding tube 35 commercial raw materials are available. A suitable selection of materials enables certificates to be obtained, for example for contact with food or drinking water. The choice of materials also determines the chemical resistance. The dimensioning of the capillary geometry (diameter, wall thickness), of the cladding tube 35 as well as the potting block essentially defines the mechanical stability, which is important for operation at higher pressures (> 2 bar). Together with the choice of material, the dimensioning determines the mechanical stability at elevated temperatures (eg 60 ° C). The same applies to dynamic loads.

The thickness of the potting block is 20% to 50%, preferably 25% to 40% of the cladding tube diameter. The cartridges 1 can therefore be adjusted within wide limits in terms of diameter and length. A range of 10 mm to 160 mm, preferably 25 mm to 120 mm and particularly preferably 40 mm to 100 mm can be achieved for the diameters. The maximum length is only determined by the maximum length of the capillary or tube bundle 16 set. Meaningful Length ranges are 100 mm to 3,800 mm, preferably 200 mm to 1,800 mm and particularly preferably 250 mm to 1,200 mm. A range of 10 mm to 160 mm, preferably 25 mm to 120 mm and particularly preferably 40 mm to 100 mm can be achieved for the diameters. The maximum length is only determined by the maximum length of the capillary or tube bundle 16 set. Sensible length ranges are 100 mm to 3,800 mm, preferably 200 mm to 1,800 mm and particularly preferably 250 mm to 1,200 mm.

The built-in membrane capillaries 16 or membrane tubes can be suitable for a wide variety of membrane separation processes. In dialysis, FO, transmembrane distillation, gas drying or humidification or membrane contactors, the controlled fluid flow on both the “lumen side” and the “shell side” is beneficial in terms of good mass transfer. Membrane capillaries can also be used 16 or membrane tubes, made of polymeric or inorganic material, for ultrafiltration and microfiltration as well as nanofiltration, reverse osmosis, gas separation, pervaporation and vapor permeation.

With membranes 16 which have a coating, it is possible here to also apply this in situ. The cartridge concept is particularly advantageous here because smaller units can be coated and checked in quality control before they are assembled into larger units (modules).

For the filter caps 2 , 2a Commercially available raw materials are available. The same relationships apply as with the cartridges 1 . The filter caps 2 , 2a can be made in a number of ways. Suitable manufacturing processes are injection molding, machining, or also additive processes such as, in particular, 3D printing or combinations thereof. Semi-finished products produced with these processes can also be connected to one another by thermal processes such as joining or welding, ultrasonic or friction welding or by mechanical securing using seals in order to obtain the desired shape.

With these freedoms, membrane devices 30th design and manufacture that can be adapted in wide areas to the requirements of industrial processes. This applies to both operating conditions and module sizes and compliance requirements.

The number of cartridges 1 can be varied over a wide range. 1, 2, 3, 4, 5, 6, 7 or more cartridges can be used. The maximum number of cartridges 1 is only due to the maximum size of the filter caps intended in practice 2 , 2a limited. For example, in one embodiment 7th Cartridges 1 be arranged concentrically, or 13 cartridges 1 , which are arranged, for example, in two ring planes around a concentric center. There can also be 18 cartridges in one example 1 concentrically around a cartridge 1 be arranged in the middle, that is, six cartridges in a first ring area 1 and in a second ring area 12th Cartridges 1 arranged around the first ring area. It is advantageous if the size of the device 30th can be kept small by means of a tightly packed arrangement. The flow distribution of the fluids through the cartridges is also preferred here 1 considered.

18th shows a further embodiment of a device 30th for filtering a fluid. The device 30th points in this embodiment 19th Filter elements 1 on which on the one hand with their front ends 22nd in a common filter cap 2 and on the other side in a filter cap 2a are used. The device 30th points on both filter caps 2 , 2a one filter element fixing device each 43 , 43a on which the filter modules 1 in the respective filter cap 2 , 2a secure or fix. As before, the filter caps take over 2 , 2a the fluid distribution inside the respective filter cap 2 , 2a as well as the inclusion of in this case 19th Filter cartridges 1 . The filter cartridges 1 filter the fluid, but can also take on static tasks in the embodiment shown. This is how the filter modules hold 1 the two filter caps 2 , 2a at a defined distance and stabilize the device 30th a total of. In such an embodiment of the invention is in the device 30th no further support or tensioning device is necessary to ensure the statics of the device. In other words, the filter modules stabilize 1 the device 30th such that twisting, deformation or divergence of the device 30th is prevented.

The filter element fixation or cartridge holder 43 can be attached to the filter cap via fastenings 2 , 2a be connected.

Referring to 19a Fig. 3 is a perspective view of a filter element fixing device 43 shown, which in this case can accommodate 19 filter modules 1 is provided and accordingly 19 filter element through openings 431 for inserting the filter elements 1 having. In a respective filter element passage opening 431 is a groove 48 for receiving a snap ring, for example 39, arranged. In this embodiment, the filter element fixing device 43 with six fasteners 432 on the filter cap 2 screwed tight.

19b shows the further perspective view, referred to as the underside, of a filter element fixing device 43 , which can also accommodate 19 filter modules 1 is designed and accordingly 19 through openings 431 having. To stabilize and / or fix the filter element fixing device 43 indicates this on the Underside fastening mounts 44 with four ribs each 441 on. For example, the filter modules 1 by means of a position securing element each 39 , in particular a snap ring between the filter cap 2 and the cartridge holder 43 is arranged to be fixed.

20th shows a plan view of a further embodiment of a filter cap 2 , prepared to accommodate 19 filter modules 1 . Top of the filter cap 2 is a first connection 23 and a second connector 24 arranged for the supply and discharge of fluids. By means of channels 6th the fluid is distributed on the lumen side. Screw elements 50 are from above through the filter cap 2 inserted through to fix the cartridge holder 43 on the underside of the filter cap 2 . The screw elements 50 are for example in the mounting receptacles 44 (please refer 19b) screwed in.

Referring to 21 FIG. 13 is a sectional view taken along the line in FIG 18th sketched line D through a filter cap 2 shown, the connecting channels 7th for supplying the fluids of the lumen surfactants are shown. The distribution channels 6th branch out from the feeder 24 to connection channels 7th that the respective filter module 1 to contact. For example, the distribution channels 6th Branch in a star or snowflake shape. The shell side fluid supply 23 is only visible as a passage on this level. Fasteners 50 extend through the cutting plane D, in particular for fixing the cartridge holder 43 .

22nd FIG. 13 shows a sectional view along the line C, which is shown in FIG 18th is shown to show the distribution of the shell side fluid in the filter cap 2 . From the first connection 23 the fluid flows into a chamber-like area 4a , taking it from there through the transverse channel 11 and culverts 9 to the filter modules 1 distributed. The filter modules 1 are supplied with the Shell Side Fluid on their respective side or this is done from the filter modules 1 discharged laterally.

23 FIG. 13 shows a sectional view along line A of the embodiment shown in FIG 18th can be seen, with a plan view of the underside of the cartridge holder 43 is made possible. The filter modules 1 extend through the through openings 431 in the cartridge holder 43 , and are in the filter cap 2 inserted or with the filter cap 2 connected. The cartridge holder 43 has fastening receptacles for their fixation 44 on which between the filter modules 1 are arranged. Arranged on the fastening receptacles or integrally with the fastening receptacles 44 executed are stiffeners 441 Star-shaped around the respective mounting bracket 44 attached around. The stiffeners 441 are designed in the form of four ribs. The stiffeners 441 are prepared in this embodiment so that they on the one hand the fastening receptacle 44 reinforce and break out of the fastener 50 in the mounting bracket 44 prevent, for example, in the event that the filter element fixing device 43 not exactly flat on the filter cap 2 is arranged or in the event that transverse forces on the device 30th Act. On the other hand, the arrangement of the stiffeners 441 on the underside of the filter element fixing device 30th at the same time the filter element fixing device 30th as such stiffen and ensure increased stability. As the underside of the filter element fixing device 30th that side is referred to which is in the direction of the second filter element fixing device 30th shows when this is used, or in the direction of that filter cap 2 , 2a on which the filter element fixing device 30th not adjacent, but to which it is arranged at a distance.

Referring to 24 Figure 3 is a side view of a further embodiment of a filter module 1 shown, with the detail A of one front end 22nd of the filter module 1 enlarged in 24a is reproduced. In 24a is a face end 22nd a filter module shown, having a groove 37 , another groove 38 as well as a position securing element 39 .

25th Figure 3 shows a sectional view of part of the device 30th , with the cut along the line in the 20th indicated section line B has been made. A plurality of filter modules 1 is in the filter cap 2 used. Underneath the filter cap 2 is the filter element fixing device 43 by means of screw connections 50 screwed, the fastening screw 50 into the mounting bracket 44 the cartridge holder 43 is screwed in. The filter modules lie with the position securing element 39 on the filter cap 2 with the cartridge holder 43 from underneath the position securing element 39 presses against the same and thus the filter modules 1 on the filter cap 2 secures.

For example, an assembly with the cartridge holder 43 done so that the cartridge holder 43 is first slipped over all filter modules together, then each or at least a part of the filter modules 1 with the position security 39 is equipped and then the filter cap 2 from above onto the filter modules 1 is attached and the cartridge holder 43 with the fastenings 50 is secured.

26th shows a further embodiment of a device 30th for filtering a fluid, with four filter modules 1 in a filter cap each 2 , 2a at the respective front end 22nd the filter modules 1 are inserted. The device 30th is with two cartridge holders 43 , 43a equipped, which with the respective filter cap 2 , 2a are connected. 27 shows a detailed view in the area of the marking "A" 26th , the arrangement of the cartridge holder 43a with ribs 441 and mounting bracket 44a is made clear.

28 FIG. 13 shows a sectional view along the line in FIG 26th Line B shown through four filter modules 1 through and thus a plan view at the same time on the underside of the cartridge holder 43a with mounting bracket 44a and four symmetrically arranged ribs 441a. The ribs 441a also serve to stiffen the cartridge holder 43a as well as for securing the mounting bracket 44a so that it can be supported in the event of possible transverse loads or loads. In particular, the ribs 441a can help prevent the fastening receptacle from breaking out 44a to prevent.

29 shows a detailed view of a filter module 1 with its frontal end 22nd . The filter module 1 has a groove 37 , another groove 38 , a position securing element 39 , one more groove 40 and side openings 21 on.

Referring to 30th is a section through a device 30th shown with the cartridge holder 43 with a central connector 50 on the filter cap 2 is fixed. This embodiment is characterized by additional sealing elements 45 and 46 from which the external environment of the interior of the device 30th effectively separate. On the filter cap 2 is also a plug 47 arranged, which the fastening means 50 covers. This prevents undesired penetration of particles, such as dust or liquids, into the device 30th prevented by closing transitions and covering gaps. In environments with increased hygiene requirements, such as in the food industry or biotechnology, it is advantageous to be able to clean the filter more easily from the outside without leaving residues in cavities that are difficult to access, which is why the embodiment of FIG 30th is particularly suitable there.

Referring to the 31 is an alternative way of axially securing the filter modules 1 on the filter cap 2 shown. Cartridges 1 can be paired with the filter caps 2 with pairs of threads 51 equipped. For example, at one end of the filter modules 1 Right-hand thread and at the other opposite end of the filter modules 1 Left-hand thread should be used so that the filter modules 1 with a screwing movement in both filter caps 2 , 2a be screwed in the same way.

32 shows a perspective view of a filter cap 2 , with an alternative form for the axial securing of the filter modules 1 on the filter cap 2 is shown. The filter element receptacles have for this purpose 42 Bayonet mounts 53 on, the filter modules in the filter element receptacles 42 inserted and at the stop of the bayonet pin 52 in the bayonet mount 53 be twisted to produce the position security.

The 32a shows a suitable example of a filter module 1 with bayonet pin 52 which is on the filter housing 35 is arranged laterally. The corresponding filter module preferably has 1 two oppositely arranged bayonet pins 52 on.

33 shows another way of securing the filter modules 1 in the filter cap 2 and a perspective view of a filter cap 2 with four filter element holders 42 . Every filter element holder 42 has two locking pins in this example 54 on which in this pairable grooves 55 an appropriately equipped filter module 1 can be inserted. This also ensures that the filter modules are axially secured to the filter cap 2 realized.

33a shows a corresponding filter module 1 , which is prepared for insertion into the with 33 shown filter cap 2 having a receiving groove 55 for at least one locking pin 54 the filter cap 2 . The receiving groove 55 runs radially around the filter module 1 arranged.

34 shows a further possibility for the axial fixation of the filter modules 1 in the filter cap 2 , with a shrink fit of the filter modules in the filter cap 2 is realized. This is where the fit between seal seats is needed 56 the filter cap 2 as well as the filter modules 1 designed as a press fit. The filter cap, for example, is used for assembly 2 heated to such an extent that there is a clearance fit and the filter modules 1 into the filter cap without resistance 2 can be introduced. After the filter cap has cooled down 2 an interference fit is made between the seal seats 56 the filter cap 2 and the filter housing 35 of the respective filter module 1 . Additional sealing elements 5 can be used, but are not required in this example in order to produce sufficient tightness.

To further improve the axial fixation, the surfaces in the areas of the sealing seat 56 be profiled. There is a sealing seat for this 57 also on the respective filter module 1 set up. It can be both the seal seats 56 the filter cap 2 as well as the sealing seats or the sealing seat 57 of the filter module 1 be equipped with appropriate profiling.

36 shows a sectional view through a device 30th , the filter modules 1 in the filter cap 2 are axially fixed in that they are in the filter element receptacles 42 are glued. The filter element holder has for this purpose 42 radially around the respective filter module 1 circumferential distribution rings 60 and potting channels 61 on. The fits can be designed as a press fit. The assembly can therefore be carried out as with the version with a shrink fit. In addition, the potting channels 61 an adhesive introduced into the distribution rings 60 is pressed and the filter modules 1 after it has hardened reliably with the filter cap 2 connects. This also provides an axial fixation of the filter modules 1 on the filter cap 2 as well as a fluid seal ensured.

37 finally shows a further possibility for the axial fixation of the filter modules 1 on the filter cap 2 by means of a longitudinal section through the device 30th . The connection between the filter module 1 and filter cap 2 is made by thermal welding. The filter modules 1 are installed in the filter cap 2 then welding elements are introduced 62 , which in the filter element holder 42 are arranged, activated. In the form of an electrical resistance wire, the temperature in the welding element is increased by supplying electrical energy. When the melting point of the polymer used is reached, a reliable connection is created between the filter cap 2 and filter module 1 in the filter element holder 42 the filter cap 2 .

It is evident to the person skilled in the art that the embodiments described above are to be understood as examples and that the invention is not restricted to them, but rather can be varied in many ways without departing from the scope of protection of the claims. Furthermore, it can be seen that the features, regardless of whether they are disclosed in the description, the claims, the figures or otherwise, also individually define essential components of the invention, even if they are described together with other features. In all figures, the same reference symbols represent the same objects, so that descriptions of objects that are possibly only mentioned in one or at least not with regard to all figures can also be transferred to these figures, with regard to which the object is not explicitly described in the description .

List of reference symbols

1

Filter module

2, 2a

Filter cap

3

first chamber, capillary side

4th

second chamber, shell side

4a

chamber-like area

5

Sealing element

6th

channel

7th

Connection channel

8th

connection

9

Passage or bore

10

Filter stop

11

Transverse channel

12th

End (s) of the membrane element (s)

13th

Tube sheet

14th

Sealing element or O-ring

15th

end capillary flow opening of the filter module

16

Membrane element or filter capillaries

18th

Membrane element or absorber

19th

End plate

20th

Fluid barrier, separating element or potting compound

21

side openings

22nd

front end

23, 23a

first connection

24, 24a

second connection

30th

contraption

32

Fastening device or spacer

33

Threaded rod

34

Fuse or nut

35

Filter housing or cladding tube

37

Groove

38

further groove

39

Position securing element such as snap ring

40

2. Another groove

42

Filter element holder

43, 43a

Filter element fixing device or cartridge holder

431

Through opening of the cartridge holder

44, 44a

Fastening receptacle with ribs on the cartridge holder

441, 441 a

Rib of the fastening seat

45

Sealing element to the outside cartridge

46

Sealing element to the outside filter cap

47

Plug

48

Snap ring mount

50

Fastening (screw) cartridge holder

51

Thread pairing

52

Bayonet pin

53

Bayonet mount

54

Locking pin

55

Retaining groove locking pin

56

Sealing seat filter cap

57

Seal seat cartridge

60

Distribution ring

61

Potting channel

62

Welding elements

81

Hose fasteners

Claims (21)

Apparatus (30) for separating components from a fluid, the apparatus comprising: - At least one, in particular elongated or tubular, filter module (1) with filter housing (35) and a membrane element (16) arranged therein, the at least one filter module having a first end face (22) and a second end face opposite the first end face, and wherein the filter module provides a capillary side and an envelope side for the at least one fluid flowing through the filter module for generating a capillary flow and an envelope flow in each of the filter modules, - A first filter cap (2) on the first end face of the at least one filter module with a first chamber (3) and a second chamber (4) and at least one filter module receptacle (42), - A second filter cap (2a) on the second end of the at least one filter module opposite the first end, with a further filter module receptacle, the first chamber of the first filter cap being connected to the capillary sides of the filter modules and the second chamber of the first filter cap being connected to the envelope sides of the Filter modules is connected, so that the capillary flows of the filter module or modules are mixed with one another in the first chamber and so that the envelope flows of the filter module or modules are mixed with one another in the second chamber. Device (30) according to the preceding claim, wherein the membrane element (16) comprises filter capillaries, in particular membrane capillaries, and / or wherein the membrane element (16) comprises a membrane absorber. Device (30) according to at least one of the preceding claims, further with a first connection (8, 24) which is connected to the first chamber (3) in a communicating manner, in particular a drain and / or further with a second connection (23) that communicating with the second chamber is connected, in particular a second process. Device (30) according to at least one of the preceding claims, further comprising a sealing element (5) arranged between the first chamber (3) and the second chamber (4) in the first filter cap (2) for sealing the capillary flow against the envelope flow. Device (30) according to the preceding claim, wherein the sealing element (5) is arranged in such a way that it seals the first chamber (3) against the second chamber (4) when the filter module or modules (1) are inserted into the filter module receptacle (42). is / are plugged in. Device (30) according to at least one of the preceding claims, the first and / or the second filter cap (2, 2a) furthermore with an outer, in particular axial, capillary flow channel (6) which connects the first outlet (24) to the first chamber (3), or a radial-side capillary flow opening (24) and / or a radial-side envelope flow opening (21, 23). Device (30) according to at least one of the preceding claims, further comprising a plurality of envelope flow openings (21) arranged on the circumference of the filter housing (35), so that the envelope flow is distributed over the plurality of envelope flow openings. Device (30) according to the preceding claim, wherein at least some of the radial envelope flow openings (21) are arranged in a plane along the radial length of the filter housing (35). Device (30) according to at least one of the preceding claims, the first and / or the second filter cap (2, 2a) furthermore with a support receptacle (33, 34) for receiving a support element (32) connecting the first to the second filter cap. Device (30) according to the preceding claim, wherein the support receptacle (33, 34) is arranged between the filter modules (1), and / or wherein the support receptacle (33, 34) comprises a screw sleeve, and / or wherein the support receptacle comprises at least one securing element (11) comprises, and / or wherein the support receptacle is spaced from the fluid flows, so that the support element is not in contact with the fluid flows in the installed state. Device (30) according to at least one of the preceding claims, wherein the filter module receptacle (42) has a lateral collar in order to cover a filter module (1) inserted therein beyond a radial-side envelope flow opening (21, 23), so that the end capillary flow opening (15 ) and the radial-side enveloping flow opening (21, 23) can be inserted into the filter cap (2, 2a) and the fluid connection of the capillary flow with the first chamber (3) and the enveloping flow with the second chamber (4) takes place during insertion. Device (30) according to at least one of the preceding claims, wherein the first and / or second filter cap (2, 2a) each has a filter module stop (10) for each filter module (1) or for each filter module receptacle (42), so that in particular the The filter module rests against the filter module stop when it is pushed into the filter module holder and the correct inclusion of the filter module in the filter module holder is ensured by means of the filter module stop. Device (30) according to at least one of the preceding claims, wherein the device comprises two or more filter modules (1) which are inserted jointly into the first filter cap (2) on their first end face (22), in particular 2, 3, 4, 5 , 6, 7, 8 or a plurality of filter modules which are in particular arranged next to one another and in particular have substantially identical dimensions or at least the same length to one another. Device (30) according to at least one of the Claims 8 to 12th , wherein the filter modules (1) are arranged symmetrically or concentrically around the support receptacle (33, 34). Device (30) according to at least one of the preceding claims, wherein each filter module (1) has a fluid barrier (20) on at least one side, in particular made of potting compound, the fluid barrier separating the capillary flow inside the filter module from the envelope flow, Device (30) according to the preceding claim, wherein the fluid barrier (20) is designed to stabilize the membrane element (16) and to establish a mechanical connection between the membrane element and the filter housing (35), in particular between the filter capillaries and the filter housing. Device (30) according to one of the preceding claims, the device further comprising a filter element fixing device (43) for fixing the filter element or elements (1) in the filter cap (2, 2a). Device (30) according to the preceding claim, wherein the filter element fixing device (43) has at least one screw thread (51) and / or a bayonet connector (52) and / or a locking pin (54) for pairable connection or securing of the respective filter element (1) the filter element fixing device. Device (30) according to one of the preceding claims, wherein the filter elements (1), if there is no or only a slight temperature difference between them and the filter cap (2, 2a), have a larger diameter than the inner diameter of the filter element receptacle (42). Filter module (1) for a device (30) for separating components from a fluid, in particular according to one of the preceding claims, comprising an, in particular elongate or tubular, filter housing (35) a membrane element (16) arranged in the filter housing, wherein the filter module has a first end face (22) and a second end face opposite the first end face, and wherein the filter module provides a capillary side and an envelope side for the at least one fluid flowing through the filter module for generating a capillary flow and an envelope flow in each of the filter modules, and a plurality of envelope flow openings (21) arranged on the circumference of the filter housing, which are arranged in a plane along the radial length of the filter housing, so that the envelope flow is distributed radially over the plurality of envelope flow openings. Filter cap (2, 2a) for a device (30) for separating components from a fluid, in particular according to one of the preceding claims, which can be arranged in particular on a plurality of filter modules (1) according to the preceding claim, the filter cap comprising: a first chamber (3), a second chamber (4), and at least one filter module receptacle (42), the first chamber of the filter cap with the capillary sides of the inserted into the filter cap Filter modules is connected when the filter modules are inserted into the filter cap, and wherein the second chamber of the first filter cap is connected to the envelope sides of the filter modules when the filter modules are inserted into the filter cap, so that the capillary flows of the filter modules in the first chamber are mixed with one another and so that the envelope flows of the filter modules are mixed with one another in the second chamber.

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