EP2917149B1 - Container with a device for preventing foam formation and method for producing said device - Google Patents

Description

Field of the invention

The invention relates to a container with a discharge arranged near the bottom and a device for preventing foaming, which is designed as a vortex breaker upstream of the outflow.

Furthermore, the invention relates to a device for preventing foaming, which is designed as a pre-disposable vortex breaker of a container.

Furthermore, the invention relates to a method for producing a device for preventing foaming, which is designed as a vortex breaker, wherein the vortex breaker upstream of an outflow of a container and can be connected to the effluent.

The invention is applicable in particular in chemistry, biotechnology and filtration technology.

State of the art

When the concentrate is returned to the recirculation tank in cross-flow filtration plants, the product, in combination with air, can foam up considerably, especially in the case of protein-containing media. The filtration is affected by the entry of air. A concentration on a minimum recirculation volume is practically difficult.

In particular, at low filling of the recirculation tank can thereby create a vortex (vortex) and relatively much air are drawn into the medium.

WO 2009/145874 A1 discloses a container having a downhole effluent and a vortex breaker to prevent foaming that is upstream of the effluent and that is fixedly installed in the container.

GB 239 350 A discloses a fixed in a container Vortex breaker in the form of a perforated tube, which is fixedly connected to a drain pipe, the drain pipe in turn is connected via a funnel-shaped receptacle to the wall of the container.

From the JP 2004/182275 A a bag-shaped container is known, which has a fixed vortex breaker installed in the container, wherein the vortex breaker has a disc with a central hole in which the container interior pioneering a drain pipe and the container interior indicative of a cylinder segment are fixed with openings.

US 969 997 discloses a vortex breaker for preventing foaming, which is fixedly installed in a container and which is connected as a conical cap fixed to the container side opening of a drain pipe.

From the EP 0 213 783 A1 a Vortex breaker for a container is known which comprises a cylindrical hollow body, one end of which is connected to a diaphragm and the other end to an outlet arranged laterally on the hollow body. The Vortex breaker is firmly connected to the container and allows in cooperation with a valve, the delivery of carbonated drinks.

From the EP 2 294 001 B1 a container with a vortex breaker is known. Again, an undesirable foaming should be avoided.

For this purpose, an outlet arranged at the bottom of a container, for example, is arranged at a distance, for example a circular vortex breaker, which is spaced over a plurality of arms.

A disadvantage of the known device is, on the one hand, that it does not optimally prevent turbulence occurring parallel to the bottom and, on the other hand, it is difficult to retrofit it upstream of a discharge opening arranged in a container.

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The object of the present invention is therefore to provide a container with a discharge arranged near the bottom, which has a device for further optimization of the outflow, which prevents foam formation at the outflow, and in which subsequent installation of the device for avoidance of Foaming in the container is possible.

Another object of the invention is to provide a corresponding device and a method for their preparation.

Presentation of the invention

The object with respect to the container is achieved in conjunction with the preamble of claim 1 in that the vortex breaker is designed as a vertical or nearly vertical wall arrangement (hereinafter referred to as vertical wall arrangement or vertical main wall), which projects into the outflow via a fixing arm projecting into the outflow is attached.

The vertical wall arrangement, in particular, swirls are reduced transversely to the container bottom and foaming optimally avoided. By only one fixing arm, which protrudes into the outflow, the device can be easily and in particular also subsequently introduced into a container and attached to the outflow to avoid foaming.

According to a preferred embodiment of the invention, the outflow is arranged laterally above the bottom, wherein the fixing arm has a vertical main wall at its end facing away from the outflow and wherein the vertical Main wall at its end facing away from the spout has two vertical side wings directed away from each other. Due to the vertical side wings, the vortex breaker consists of a vertical wall arrangement which is T-shaped similar and leads to a particularly low-foam result. The angles between the main wall and the side wings may be different and deviate from 90 °, for example to 45 ° and to 135 ° (hereinafter called T-shaped).

According to a further preferred embodiment of the invention, one of the side wings towards the bottom to an outbreak. The eruption, which forms a kind of window, contributes to a complete or at least substantially complete emptying of the container.

According to a preferred embodiment of the invention, the container is designed as a recirculation container of a crossflow filtration system.

The object with respect to the device is achieved in conjunction with the preamble of claim 5, characterized in that the vortex breaker has a vertical main wall, that the main vertical wall in a T-shaped configuration has two vertical, side wings directed away from each other, and that the main wall in a Fixierarm merges, which is fastened with its free end in the outflow of the container.

The device has the advantages described above and, in particular with the free end of the fixing arm, can be easily fastened in the outflow of the container.

According to a further preferred embodiment of the invention, for fixing the fixing arm in a lateral outflow of the container, the fixing arm is directed away on the side of the main wing remote from the main wall in the horizontal direction and has in each case in the vertical direction opposite sides on each latching lug, which in corresponding formations of the outflow can snap. For mounting the fixing arm is simply inserted into the outflow, so that it locks. In principle, the fixing arm can also be glued or welded to the outflow.

According to a further preferred embodiment of the invention, the latching noses are formed by an arrowhead-shaped design of the free end of the fixing. Due to the arrowhead-shaped design of the free end of the fixing arm can be particularly easy to introduce into the outflow.

According to a further preferred embodiment of the invention, the fixing on its main wall facing the end of a stepped stop. The stepped stop contributes to the correct locking position.

1. a) Ausschneiden des Vortexbrechers mit einer Hauptwandung, zwei Seitenflügeln und einem mit der Hauptwandung verbundenen Fixierarm aus einer ebenen Platte und
2. b) Ausklappen der Seitenflügel in entgegengesetzte Richtungen jeweils in eine quer zur Hauptwandung angeordnete Endstellung.

The object with respect to the method is solved in connection with the preamble of claim 9 by carrying out the following steps:

1. a) cutting the Vortexbrechers with a main wall, two side wings and a main wall connected to the fixing arm of a flat plate and
2. b) unfolding the side wings in opposite directions in each case in a transversely arranged to the main wall end position.

The formation of the vortex breaker from a flat plate creates a spatially trained vortex breaker, which is nevertheless formed in one piece and easy to manufacture. The vortex breaker can obtain its three-dimensional contour by hot or cold forming. In principle, the vortex breaker can also be formed from a plurality of parts which are welded or glued together. It is also basically possible to produce the vortex breaker by an injection molding process.

According to a further preferred embodiment of the invention, the vortex breaker is introduced through a container opening into the container interior and inserted with a free end of the fixing arm in the outflow opening of the outflow and locked. In this case, the vortex breaker can be inserted in particular with a long-handled gripping tool in the outflow.

Further details of the invention will become apparent from the following detailed description and the accompanying drawings, in which preferred embodiments of the invention are illustrated by way of example.

Brief description of the drawings In the drawings show:

FIG. 1:

a side view in section of a container with a device for preventing foaming;

FIG. 2:

a side view in section of the detail II of FIG. 1 in an enlarged view;

FIG. 3:

the detail of FIG. 2 without a foaming prevention device;

FIG. 4:

a spatially enlarged view of a device for preventing foaming, which is designed as Vortex breaker;

FIG. 5:

a side view in an enlarged view of the vortex breaker of FIG. 1 ;

FIG. 6:

a side view of the vortex breaker of FIG. 5 as settlement and

FIG. 7:

a side view partly in section of another Vortex breaker in a representation corresponding to detail II of FIG. 1 ,

Description of the embodiments

A container 1 consists essentially of a container wall 2 with bottom 3, an outflow 4 and a device 5 for preventing foaming.

The lateral container wall 2 merges into the approximately horizontal bottom 3 in the vertical direction. In the vertical direction at the top is a container opening 6, which is closed by a screw cap 7. Through the screw 7 an inlet hose 8 is guided, which forms an inflow into the container interior 10 with its free end 9.

In the transition between the bottom 3 and the container wall 2 is a tapered inwardly curved molding 11, which surrounds the horizontal outflow 4 in the vertical upward direction at a distance. The outflow 4 has an inner bore 12, which merges into a shoulder 13 towards the free end of the outflow 4. At its free end, the outflow 4 is designed as a hose connection 15, for example a hose olive.

The foaming prevention device 5 is formed as a vortex breaker (vortex breaker) 16. The vortex breaker 16 has a fixing arm 18 connected to a main vertical wall 17. The vertical main wall 17 has at its end remote from the fixing arm 18 a first vertical side wing 19 and a second vertical side wing 20. The two side wings 19, 20 are directed away from each other and form in the embodiment with the main wall 17 each have a right angle. The first side wing 19 has a downwardly open outbreak 21. In the embodiment of FIG. 6 the outbreak 21 corresponds to the size of the second side wing 20.

The fixing arm 18 is matched in its dimensions to the corresponding outflow 4, that is to say on the inner bore 12 and the shoulder 13. At its free end 22, the fixing arm is formed in the exemplary embodiments arrowhead-shaped, wherein two opposing locking lugs 23, 24 are formed. At its end facing the main wall 17, the fixing arm has a stepped stop 25.

The vortex breaker 16 may consist of a flat plate with its in FIG. 6 cut out processing are shown. That is, the vortex breaker 16 is cut with its main wall 17, its side wings 19, 20 and with its fixing arm 18 from a flat plate. In a subsequent step, the first vertical side wing 19 is then folded back out of the plane and the second vertical side wing 20 is folded out of the plane to the front. The folding out can be done by hot or cold forming.

For installation in the container 1, the vortex breaker 16 is inserted through the container opening 6 into the container interior 10 and inserted with the free end 22 of the fixing arm 18 far into the inner bore 12 of the outflow 4 until the locking lugs 23, 24 in the paragraph 13 of the outflow 4 lock.

According to the embodiment of the FIG. 7 For example, the fixing arm 18 'with its free end 22' can protrude out of the outflow 4 and lock on the outer end face 26.

Of course, the embodiments discussed in the specific description and shown in the figures represent only illustrative embodiments of the present invention. In the light of the disclosure herein, those skilled in the art will be offered a wide range of possible variations.

LIST OF REFERENCE NUMBERS

1

container

2

container

3

ground

4

discharge

5

contraption

6

container opening

7

screw

8th

inlet hose

9

free end of 8

10

Container interior

11

formation

12

Inner bore of 4

13

Paragraph of 4

14

free end of 4

15

hose connection

16

Vortex breaker

17

Main vertical wall of 16

18, 18 '

Fixing arm of 16

19

first vertical wing of 16

20

second vertical wing of 16

21

Outbreak of 19

22, 22 '

free end of 18

23

upper latch of 22

24

lower catch of 22

25

Stop of 18

26

Face of 4

Claims (10)

1. Container (1) with an outflow (4) arranged in the vicinity of a base and a device for avoiding formation of foam, the device being constructed as a vortex breaker (16) upstream of the outflow (4), characterised in that the vortex breaker (16) is constructed as a vertical wall arrangement (17) which is fixed in the outflow (4) by way of a fixing arm (18, 18') projecting into the outflow (4).
2. Container according to claim 1, characterised in that the outflow (4) is arranged laterally above the base (3), that the fixing arm (18, 18') has the vertical wall arrangement (17) at its end remote from the outflow (4) and that the vertical wall arrangement (17) has at its end remote from the outflow (4) two vertical side blades (19, 20) directed away from one another.
3. Container according to claim 2, characterised in that at least one of the side blades (19, 20) has a broken-away portion (21) towards the base (3).
4. Container according to any one of claims 1 to 3, characterised in that the container (1) is constructed as a recirculation container of a crossflow filtration plant.
5. Device (5) for avoiding formation of foam, the device being constructed as a vortex breaker (16) positionable upstream of an outflow (4) of the container (1), characterised in that the vortex breaker (16) is constructed as a vertical wall arrangement (17), that this vertical wall arrangement (17) has two vertical side blades (19, 20), which are directed away from one another, in a T-shaped formation, and that the vertical wall arrangement (17) goes over into a fixing arm (18, 18') which is fixable by its free end (22, 22') in the outflow (4) of the container (1).
6. Device according to claim 5, characterised in that for arrangement of the fixing arm (18, 18') in a lateral outflow (4) of the container (1) the fixing arm (18, 18') at the end of the vertical wall arrangement (17) remote from the side blades (19, 20) is directed away in horizontal direction and has at sides opposite one another in vertical direction respective detent lugs (23, 24) which can detent in corresponding shaped portions of the outflow (4).
7. Device according to claim 6, characterised in that the detent lugs (23, 24) are formed by an arrowhead-shaped construction of the free end (22, 22') of the fixing arm (18, 18').
8. Device according to any one of claims 5 to 7, characterised in that the fixing arm (18, 18') has a step-shaped abutment (25) at its end facing the vertical wall arrangement (17).
9. Method of producing a device (5) according to any one of claims 5 to 8 for avoiding formation of foam, which device can be connected with an outflow (4) of a container (1), characterised in that the following steps are carried out:

   a) cutting the vortex breaker (16) with a vertical wall arrangement (17), two side blades (19, 20) and a fixing arm (18, 18'), which is connected with the vertical wall arrangement (17), out of a flat plate and

   b) bending out the side blades (19, 20) in opposite directions each into an end setting arranged transversely to the main wall (17).
10. Method according to claim 9, characterised in that the vortex breaker (16) is introduced into the container interior space (10) through a container opening (6) and is plugged and detented by a free end (22, 22') of the fixing arm (18, 18') in the outflow opening of the outflow (4).

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