DE1963376A1 - Device for adding and distributing a liquid or a gas in other media - Google Patents

Description

A (J 549 AGFA-GEVAERT AKTIENGESELLSCHAFT, Leverkusen December 15.

Device for adding and distributing a liquid or a gas in other media

The invention relates to a device for adding and distributing a liquid or a gas in other media, with fluids being a wide variety of flowable media Viscosity and composition are to be understood.

There are already devices for metering a liquid to another known, in which the one by means of a Pressure conveyor, such as a gear pump, metering pump, metering screw or the like, promoted and through the outlet opening or the outlet opening of an inlet pipe for the other liquid is abandoned, with the mouth of the feed pipe arranged above or below the liquid level is. To mix the two liquids, further devices, such as stirrers, screws or the like, are then required.

Nac? - British Patent 872,426 is a device has been proposed for distributing one liquid in another, in which one in a conventional manner Boiler is located. A feed pipe set in rotation by means of a drive motor is immersed vertically and in the manner of a stirrer wave into the boiler or into the other liquid opens between two conical disks facing each other with their base, one of which is hollow, that is, like a cone shell is trained. Both discs are set at a fixed distance from one another, so that the od by means of a pump. conveyed a liquid is passed through the inlet pipe and with centrifugal force to exit through the always open gap should be brought between the two discs. In this way, both liquids can be mixed together. In order to make this miso effect as optimal as possible, you can

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one or more agitator blades can also be attached to the rotating inlet pipe. Next are still to achieve an improved Mieohe effect on the conical outer surfaces of the two Disks, spaced apart and inclined to them, arranged rotationally symmetrical baffles, which the flow of both liquids, similar to that in a venturi tube. With the exception of the impeller, however, the other two means are likely to Mixing no satisfactory mixing effect can be achieved because duroh thrown out through the gap largely and through the Leitbleohe almost exclusively laminar flows of both liquids are generated.

All of these known devices require in addition to the pressure conveyor for the one. "Liquid other powered devices the same or similar to a stirrer, plus drive motors and corresponding amounts of energy, whereby both at The provision as well as the operation require a considerable amount of effort. At these institutions derives itself however, a very significant disadvantage from the fact that the outlet opening, regardless of the design, on the inlet pipe for which one liquid is always open to the other or even to the surrounding atmosphere, so that one liquid got into the other medium even after the pressure conveyor has come to a standstill. This is also possible when using a very precise dosing pump, exact dosing is not possible; Production processes or reaction processes cannot be reproduced exactly either. In addition, it is a lot of effort necessary for monitoring these processes. The lag can be caused by a gradual druok reduction in the in the inlet pipe between the pressure conveyor and the outlet opening have remaining liquid, which also includes the Pressure in the second medium, e.g. B. at different liquid levels above the outlet opening, has an effect Any solid reaction products block the outlet opening with the stirring stopped.

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The known facilities are not only very complex, but also hardly suitable for application and mixing processes that are precise in terms of time and quantity, as required, for example, in the production of photographic suspensions containing halogen silver.

The invention is based on the object of providing a device for metering and distributing one liquid into another create in which the disadvantages of known devices are avoided. It should be very timely and / or quantitatively precise and thus reproducible metering of one liquid into another and a good miso effect with little enable constructive and operational effort.

This object is achieved in the device naoh the invention that od in a tube. The like. Coaxially one to one Inlet pipe connected mixing nozzle valve with a, in a plane perpendicular to the axis of the pipe, approximately radially directed, against the pressure of a spring tension by the one fluid applied pressure is arranged in its rotationally symmetrical cross-section variably openable annular gap. Through this training any after-run of the liquid into the mixing or reaction space is avoided, as is any dead space between the dosing pump and the annular gap. The pressure from the metering pump has a particularly advantageous effect the spring preload opposing pressure at the annular gap on the accuracy of the time and quantity addition this liquid out. Another essential advantage is achieved in that the one liquid in the pipe guided other liquid is passed through the annular gap in cross flow, i.e. perpendicular to the direction of flow. Through this the result is such a perfect mixing effect that additional stirring can be completely dispensed with. It takes a

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satisfactory mixing of the two liquids is not possible the previously necessary stirrer, so that in addition to the direct production-related advantages, there is also a considerable saving of construction and operating resources. Through this Simplification increases the operational safety of the facility and increases the possibility of operational disruptions and costly production downtimes are significantly reduced.

A particularly simple embodiment of the invention consists W therein, that the annular gap containing between a connected, rotationally symmetrical, a channel having a cone-shaped extension to the inlet pipe to the annular gap, with its free annular end face forming a wall of the annular gap, rigid in itself valve body and at its End ring surface with spring bias applied, rotationally symmetrical valve disc, whose circular surface facing the end ring surface represents the other wall of the annular gap, further in that the valve disc consists of a spring-elastic material and is held centrally with spring bias on the valve body, and also in that in the Valve body, for example at the transition from the channel to the conical widening, by means of a screw connection or the like. An insert piece with an initially axial continuation of the channel of the valve body and then approximately in the direction of the conical extension sion or the annular gap divided into several small channels, radially extending channel, further a stop in the axial direction and a radial guide section for a hole provided in the valve disc and fastening means for the valve disc, such as a mandrel with nut _{5 is} arranged. The stop engages below the level of the annular gap to such an extent that the required spring preload of the valve disc is applied by pressing its inner section against the stop and its outer section

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the end ring area of the valve body is set. This means that only three structural parts are closed for the mixing nozzle valve manufacture, so that the production costs for the facility itself, but in relation to the effects listed above and Advantages, are kept extremely low.

According to another embodiment of the invention, the valve body is in the direction of its connection point for the The inlet pipe to the annular gap widens conically in such a way that the smallest circular passage cross-section of the pipe for the other liquid and the annular gap roughly in one common level, whereby the mixing effect due to the relatively stronger Duroh vortex of the cross flow nooh continues is improved.

Furthermore, it is proposed according to the invention for a particular application that the mixing nozzle valve with an annular gap directly and coaxially another similar Mlsohdüsenventil, connected via an inlet pipe, is assigned. education and arrangement are advantageous in that on the end section of the additional inlet pipe a cone-shaped, mit.ihrer free end ring surface the one wall of the further annular gap representing valve sleeve and on the inner one Inlet pipe located Absohnitt of the valve body an axial stop and a radial guide for a corresponding Bore of the further valve disc are arranged, and that the axial distance of this stop to the free face ring surface the valve sleeve is dimensioned smaller than the height of the further valve disk, such that this valve disk also is acted upon with spring preload. This is also for this case of need and maintaining all of the listed Advantages of individual devices or Misoh nozzle valves enables an advantageous, space-saving solution that may be results in a particularly closely spaced arrangement of mixing or reaction areas in the pipe.

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In the drawing, the invention is shown on the basis of two exemplary embodiments. Show it:

1 shows a device for adding and distributing one liquid in another, and

2 shows a device for adding and distributing two miscible liquids in another,

both devices being cut in the plane of their vertical axis.

According to Fig. 1 and - initially <- Fig. 2 there is a device for adding and distributing one liquid into another liquid therein that in one, that other liquid leading pipe 1 or 1 * coaxial, one to an inlet pipe 2 or 2 'for the mixing nozzle valve connected to one liquid 3 or «3 'with one, in one to the axis of the pipe. 1, 1 * vertical plane, approximately radially directed, in the rest position closed annular gap 4 or 4 * arranged is.

The mixing nozzle valve 3, 3 'is composed of a rotationally asymmetrical, a channel 5 or 5 ^{1 with a conical extension 6 or 6 1} located to the annular gap 4, 4 * and containing inherently rigid valve body 7 or 7 *, an insert 9 or 9 'fastened approximately at the transition from the channel 5, 5 * to the conical enlargement 6, 6' of the valve body 7, 7 ¹ by means of a screw connection 8 or 8 * with an initially in continuation of the channel 5, 5 'of the valve body 7, 7 * axially and then approximately in the direction of the conical enlargement 6, 6' or the annular gap 4, 4 II ¹ in the axial direction and a radial guide abs ohnitt 12 or 12 'and a thread mandrel or 13', and made of a resilient material

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manufactured valve disk 14 or 14 », which is guided with its bore or 15 'centrically on the Führabs chni tt 12 or i2» and is held against the stop 11 of the insert 9, 9 ^{1 by means of a nut 16 or 16'} . The mother 16, 16 "is a hat mother here.

In this way, the free end ring surface 17, 17 of the valve body 7, 7 ¹ represents one wall and the outer, circumferential section, a circular ring surface 18 or 18 *, represents the other wall of the annular gap 4, 4 *.

Since the stop 11, 11 'below the end ring surface 17, 17' is located, is flat in the unloaded state valve disk 14, 14 'with its outer Absohnitt 18, 18 * with spring preload pressed against the end ring surface 17, 17 '. In this position shown in the drawing with solid lines the annular gap 4, 4 'is closed by the pressure of the spring preload in the valve disc 14, 14'.

If a metering pump - not shown - pressurizes a liquid into the section between the metering pump and the annular gap 4, 4 ¹ , the opposing pressure from the spring preload of the valve disc 14, 14 * is canceled by this pressure, whereby the annular gap 4, 4 ″, variable in its rotationally symmetrical cross-section, opens. Thus the one liquid passed through the inlet pipe 2, 2 ', the channel 5, 5, the first axially and then radially extending channel 10, 10 * and the conical enlargement 6, 6' is passed through the open annular gap 4, 4 '- with the valve disc 14, 14 * lifted out from the outside, as illustrated in dash-dot line in FIG. 1 - the other liquid carried in the pipe 1, 1' is abandoned in the cross-flow and distributed in it, as shown in FIG dotted lines for the "flow threads" of the

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another liquid is illustrated. So it will all Particles of one liquid are intimately mixed with the particles of the other liquid by the effect of the cross flow.

The effect of the cross-flow is further increased by the fact that the valve body 7, 7 ¹ is widened conically on the outside in the direction from its connection point for the inlet pipe 2, 2 'to the annular gap 4,4 *, whereby the smallest annular passage cross-section of the pipe 1, I. ¹ for the other liquid and the annular gap 4, 4 ¹ lie approximately in a common plane.

As soon as the metering pump is stopped and the pressure on the valve disc 14, 14 ^s is released, the force stored in the valve ^{disc 14, 14 'immediately closes the annular gap 4, 4 1} », reinforced by the spring preload in the valve disc 1.4" 14 " , itself. This prevents any after-run or seepage of one liquid into the other liquid, as well as contamination of the one ^{liquid that is now in front of the annular gap 4, 4 1} through the other cannot occur.

According to Fig. 2 for the purpose of giving up and distributing is a further fluid to the other first and essential to the mixing nozzle valve 3 according to Fig. 1 identical mixing nozzle valve 3 'another the same type, to a the supply pipe 2' for the first MischdUsenventil 3 ^f at a distance A further inlet pipe 19 which is connected in a jacket-like manner is assigned to a mixing nozzle valve which has an annular gap 21 which is at least ^{functionally identical to the annular gap 4 1.}

The further mixing nozzle valve 20 consists of one on the End section of the further inlet pipe 19 fastened by means of a screw connection22, which is approximately cone-shaped Valve sleeve 23, which with its free end ring surface 24 represents one wall of the further annular gap 21, and one

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further valve bracket 25, which by means of their centric Bore 26 is guided on a radial guide 27 provided on the valve body 7 and by means of a likewise on the Valve body 7 'attached stop 28 with its outer circumferential section 29, which is the other wall of the annular gap against the face ring. Surface 24 of the valve sleeve 23 is held. The spring preload is the same as that of the valve washer 14 'of the valve disk 25 in that the axial distance between the stop 28 and the end ring surface 24 is dimensioned less than the height of the approximately flat valve disk 25 in the unloaded state.

With the device according to FIG. 2, the two annular gaps 4 ^f and 21 not only operate in a space-saving manner, but also - if the media react with one another - enable a particularly close arrangement of two reaction sections.

Of course, the invention is not related to the ones shown Execution examples bound. Different configurations, for example the valve body, the insert or the valve disc itself, selected or possibly more than two annular gaps can be used in continuation of the structure of the second embodiment, without thereby that of the invention the underlying idea is left immediately at the point of entry of one liquid into the other Liquid to provide a kind of barrage, which is only when promoted one liquid by the pressure applied to it is opened against the pressure of a spring bias, and the exit point to form the annular gap so that the one Liquid in the other liquid, particularly effective as a result of the pressure in the one liquid, given up in the transverse direction so that without additional means a high miso effect is achieved, as well as through the thus achieved precision of the process solr Ut; To make processes reproducible.,

- patent claims -

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Claims (6)

- 10 - AG 549 AGFA-GEVAERT AG, Leverkusen 15. 12. Patent claims; 1. A device for adding and distributing a liquid or a gas in other media, characterized in that in a pipe (1,1 ') or the like carrying the other liquid, a coaxially connected to a feed pipe (2, 2 ¹ , 19 ) for the mixing nozzle valve (3, 3 ', 20) connected to a liquid with an approximately radially directed, in a plane perpendicular ^{to the axis of the pipe (l, l f),} "against the pressure of a spring preload by the pressure applied to a liquid in its rotationally symmetrical cross-section is arranged variably openable annular gap (4, 4 ¹ , 21). 2. Device according to claim 1, characterized in that the annular gap (4, 4 *) between one of the inlet pipe (2, 2 ¹ ) connected, rotationally symmetrical, a channel (5, 5 ¹ ) for the passage of a liquid with a conical enlargement (6, 6 ^f ) to the annular gap (4, 4 ^! ) containing, with its free end ring surface (17, 17 ') or edge representing a wall of the annular gap (4, 4), in itself rigid valve body (7 , 7 ^r) and on the end annular surface (17j 17 ·) or edge with spring bias applied, rotatioHSsymmetrischen Ventilseheibe (14, 14 ^f), of which the to said annular end face (17, 17 *) or edge facing circular or annular surface ( 18, 18 *) represents the other wall of the annular gap (4, 4 '). 3. Device according to claim 1 or claim 2, characterized in that the valve disc (14, 14 ·) consists of a resilient material and is held centrally with spring preload on the valve body (7, 7 ¹ ). -IJL-109826/1397 - ii - AG 549 AGFA-GEVAERT AG, Leverkusen December 15th 4. Device according to claims 2 and 3, characterized in that in the valve body (7, 7 ^f ) j approximately at the transition from the channel (5, 5 ¹ ) to the conical extension (6, 6 '), by means of a screw connection (8, 8 ¹ ) or the like. An insert (9, 9 ') with an initially exial continuation of the channel (5, 5') of the valve body (7, 7 ¹ ) and then approximately in the direction of the conical enlargement (6 , 6 ·) or the annular gap (4, 4 ^f ), divided into several small channels, radially extending channel (10, iO ¹ ), further a stop (11, ii ¹ ) in the axial direction and a radial guide section (12, 12 ¹⁾⁾ "" i © ei "mandrel (13) arranged at the nut (ISS), for an opening provided in the valve disc (14, 14 ¹⁾ bore (15, 15 ¹⁾ and fastening means for the valve disc (14, 14 * is, the stop (11 11) reaching below the plane of the annular gap (4, 4 ') so far that the required spring preload of the valve disc (14, 14 *) by pressing it inside Ren section to the stop (11, 11 ') and its outer circumferential section, its circular ring surface (18, 18') to the front ring surface (17, 17 ») or edge of the valve body (7, 7 ¹ ) is set. 5. Device according to one »of claims 1 to 4, characterized in that the valve body (7, 7 ¹ ) is widened conically in the direction of its connection point for the inlet pipe (2, 2 *) to the annular gap (4, 4 *) , in such a way that the smallest annular passage cross section of the pipe (i, i ¹ ) for the other liquid and the annular gap (4, 4 ¹ ) lie approximately in a common plane. 6. Device according to one of claims i to 5, characterized characterized in that the mixing nozzle valve for adding and distributing a further liquid in the other liquid (3, 3 *) old annular gap (4, 4 ») immediately and - 12 - 109826/1397 1 ^ Hi-fi t % J vJ vf ^ J f - 12 - AG 549- AGFA-GEVAERT AG, Leverkusen 15th ig « coaxially a further similar mixing nozzle valve (20) with an annular gap (21), which is connected to the feed pipe (2, 2 ″) to the first mixing nozzle valve (3, 3 ¹ ) at a distance in a jacket-like manner enclosing further feed pipe (19). Device according to claim 6, characterized in that on the end section of the further inlet pipe (19) a cone-shaped valve sleeve (23) with its free end ring surface (M) or edge constituting a wall of the further annular gap (21) and on the valve sleeve (23) ^{the section of the valve body ("T 5} ) located inside the inlet pipe (2), an axial stop (28) and a radial guide (27) for a corresponding bore (26) of the further valve disc (25) are arranged, and that the axial stop of this The stop (28) to the free end ring surface (24) or edge of the valve sleeve (23) is smaller than the height of the further valve disc (25) in the unbelested state, so that this valve disc (25) is also subjected to a pedestal preload is. 109826/1397