DE1453780A1 - Fleet circulation pump - Google Patents

Description

File number: P H 53 780.5 5175 Κ / Ηη.

(J 24 200 Ic / 59b)

9/24/1968

Aim .: ILMA - Industria Lavorazione Metal! Antiacidi del F.11i.

Liquor circulation pump

The invention "relates to a liquor circulation pump with a deflection of the liquid within the pump by 180 ° and with coaxial supply and return channels.

Ss pumps are known in which devices are provided to change the direction of rotation To enable the liquid to be conveyed equally well in both directions «

It has also become known to divert the flow within the pump by 180 ° in a circulation pump for cooking liquor. With this pump, the supply and discharge of the liquor are provided via coaxial channels. Here is that The only impeller is placed in the area of the deflection channels and the pump rotor is designed as a radial impeller. This well-known pump shows a very elongated design.

The invention is based on the object of a fluid circulation pump of the type mentioned in the subject to receive a compact construction, which is nevertheless suitable for passing through and conveying the liquid, there are sufficiently large channels that have the lowest possible liquid resistance in the flow and thus have a high delivery rate with a given drive force.

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Mes @ task is achieved according to the invention in that

oneans füz ^; Treatment baths in the textile industry the pump is designed as a two-stage axial pump, in which the first Ia ^- Kfrad-Gate-connected tail unit, the twisting tail unit between the two running wheels and the two iiauflder on the same side essentially the supply channel

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him

the ring-shaped and completely? on the / by

, taageben iiSss c'.iiscMießeaden substantially hollow conical B.üekfunrkasasX is _s wherein the deflection effecting holilringföriaigs Irüniaer is connected to the outlet side of the feed channel on the one hand and to the inlet side of the feedback channel on the other hand by the two impellers are so mounted overhung on the drive shaft, that the outer bearing is arranged in the pigtail part of the pump that has the bend and that the parts of the shaft protruding beyond this bearing extend practically over the entire length of the feed channel «

The invention has the advantage that, despite the design as a two-stage axial pump, skilfully the entire length the pump has been used for this, with the exception of the actual manifold, not just the two axial gears one behind the other to be arranged on the shaft, but also a tail unit in front of it and an intermediate tail unit between the two Activate axial gears. Furthermore, the condensation of the Construction still promoted by the fact that despite the relatively elongated construction of the two-stage rotor with its both tail units, the total length of the pump is not extended is, but nevertheless remains compact and is thus achieved, that the entire drive including the two tail units in

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Lying inside the return channel, with the pump on the fly bearing ter shaft is formed and the bearing adjacent to the pump is essentially in the interior of the manifold *! lies so that no additional .Axialraum is claimed in this direction either. This in turn has become possible because as a result When using an axial rotor, a space is released for the bearing. In that the annular outer Süekführkanal is substantially hollow conical, the hollow ring-shaped bend through which the deflection of the liquid

is caused to have a relatively large radius, which further reduces the resistance to the flows will.

Further advantageous possible embodiments result from the subclaims.

An exemplary embodiment is explained in more detail with reference to the drawing explained. It shows:

Pig. 1 an axial line of the pump and

ⁿ 2 schematically and in the axial section the installation of the pump according to Fig. 1 for supplying a liquor container.

1 shows two keyed onto the pump shaft 10 Screws 12 and H of a corresponding training, so that they form a whole, consisting of the rotor, the front with a tapered capsule 16 is provided, on which a first distributor 18 is provided. A second distributor 20 is connected between the two screws 12 and H and has the task of regulating the transition of the liquid from the first to the second screw.

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The stator of the pump consists of the three additional individual parts A, B and G, which are arranged side by side and are mechanically connected to one another to form a whole fixed to the base plate D of the machine.

The first of these components represents the connection for the pump lines and has a round opening 22 in the same

Axis line with the pump shaft 10. In it are in regular Follow the Y dividers 18 housed and appropriately attached to an annular wall 24, which the delimiting Wall of the opening 22 forms. A second annular opening 26 provided on part A is delimited by a single wall 28, which represents the outer wall of this element and a flanged hand 30 for connecting the associated line having. The ring opening 26 is coaxial with the opening 22.

Part A represents a collector between the pump and the corresponding lines and points at the other end a second puddle 32, which rests on a counter flange 34 of the intermediate part B, which is also annular and The collector element A is supplemented in the manner described below.

This intermediate element B has a cylindrical housing 36 in which the screws 12 and 14 and the distributor 20 are housed «, This housing connects to the ends of the annular wall 24 of the collector element A and is with a frustoconical chamber 38 combined through the Walls 40 and 42, which are parallel, is limited so that the

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Inner wall 40 with its end adjoins the front end of the housing wall 36, while the end of the wall 42 at the end part the wall 26 dea collector element A rests.

The third rope C forms a ümleitorgan and is with one Head part 44 is provided, which carries the bearing parts of the shaft 10 and is attached to the bearing frame D of the pump. This headboard has outer walls 46 and 48 that are too semicircular according to its circumference, which delimit a semithoric annular chamber 50, their openings on one side on the rear cable of the annular chamber 38 with the screws 12 and 14 and their on the other side outer, the former opposite openings with the aforementioned Annular chamber 38 are in communication. At the contacting ends of the intermediate part B and the distributor C are the flanges 52 and 54 intended for their connection "

As a result of this arrangement, the pump has openings 22 and 26 for the conduction of the liquid which are coaxially aligned with one another, whereby the liquid can flow in one direction as well as in the opposite direction, namely by simply reversing the direction of rotation of the shaft 10 and thus the Rotor. Faita the pump is driven by an electric motor (which is ge wöhnlich the case) needs only the connection of the motor to be changed to change its direction of rotation.

The wings de © manifold 18 and 20 conduct the individual streams of liquid in the required direction to the rotor, so that the liquid between the inlet and outlet openings is rotated at a considerable conveying excess, whereby a better performance is obtained, which practically always that

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a normal screw pump. The funding amount is due to the sum of the power applied by the first and the second screw and remains constant and independent the direction of rotation of the rotor; so when the rotor turns in a certain sense, the screw 12 increases that of the Screw 14 received the pressure of the sucked liquid, but if the direction of rotation is reversed, the screw increases 14 the liquid pressure sucked in by the vision hood 12.

To connect the pump described above to the consumer device, the one shown in FIG Solution to be taken. In this case, the pump is connected to the bottom of any container F through a Stub G, which consists of two walls, namely the inner wall 60 and the outer wall 62. The first delimits a line 64 »which is connected to the opening 22, while the second delimits an annular conduit 66, which in turn communicates with the opening 26. The inner wall 60 then ends in a manifold 68 extending from the bottom of the container F to rises to a certain height. In contrast, the wall 62 in its land 70 is sealing to the edge of a corresponding one on the ground of the liquor container provided opening connected so that this ring opening 66 opens into the container bottom.

An adjustable locking member H is arranged between the two lines 64 and 66, so that between these two There is a direct connection to the lines and their clearance can be adjusted accordingly to allow the fluid to circulate in the container F to control. Of course, the connection G, which the pump with the container F or

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any container, e.g. an autoclave, also the required characteristics, such as cut and shape concerns, have, and indeed the line can run straight or curved and in parts straight and then curved

the

while the / inner conduit 64 limiting wall, instead of terminating at manifold 68, also inside the container be carried on and to other organs, e.g. a Kollek_ Tor or the like. Can be connected.

The pump designed according to the invention is easy to manufacture and represents a massive whole with little space requirement Their performance as well as their possible uses also allow the treatment of textile material that is compact or is used at a certain liquid level. In addition, the arrangement of the bypass valve H allows adjustment the delivery head of the pump and the delivery rate in relation to the delivery head and the maximum possible delivery rate the pump.

The patent protection claimed in the present case naturally also extends to chemical apparatus, in particular Apparatus for treating yarns using the pump of the invention.

The training details can be modified in practice without thereby affecting the scope of the invention and therefore the scope of protection of the patent is also exceeded.

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Claims (1)

- 8 - 5175 K / Hn. 9/24/1968 Claims Lotto circulation pump with deflection of the liquid within the pump by 180 ° and with coaxial supply and return ducts, characterized in that the pump is designed as a two-stage axial pump known per se, in which the first impeller (12 ) upstream tail unit (18), the .between the two wheels (12,14) geschä. The intermediate tail unit (20) and the two running wheels (12, 14 ) at the same time essentially form the feed channel (72), are ring-shaped and completely surrounded by the essentially known hollow cone-shaped return channel (38) that encloses it from the outside the known hollow-ring-shaped bend (50) causing the deflection is connected to the outlet side of the feed channel (72) on the one hand and to the inlet side of the return channel (38) on the other hand, in that the two running wheels (12, 14) are floating on the Drive shaft (10) are mounted that the outer bearing (71) is arranged in the head part (44) of the pump having the elbow (50) and the parts of the shaft (10) protruding beyond this bearing (71) see practically over the entire length of the feed channel (72) extend, 2. Pump according to claim 1, characterized in that it consists of three coaxially arranged main parts, - 9 _ 90 9 806 / 04U ORfGlNAL SNSr £ CT £ D the first of which has an annular semi-thoracic chamber, the second part of which forms the rotor chamber the outside of which an annular line is provided, and the third part of which forms the connection Hr for the pump lines and a coaxial line and an au. this line has equiaxed outer line, which over the outer Line in communication with the annular semi-thoracic chamber stands. 5. Pump according to claim 1 and 2, characterized in that its three main parts are arranged coaxially next to one another and are connected to each other by detachable organs. 4. Pump according to claims 1 to 3, characterized in that the eotor consists of two or more screws between corresponding distributors are provided. 5. Pump according to claims 1 to 4 »characterized in that the outermost rear element of the pump at least part of the bearing for the rotor carries, while the front element has a connection from the middle Line consists of an equiaxed ring-shaped line, is connected to the liquor container. 6. Pump according to claim 5, characterized in that the central line of the connection in the treatment container opens in such a way that s $ e at an appropriate distance from its bottom and with a suitable distributor or collector ends 7. Pump according to claims 5 and 6, characterized in that that a partition separating the two lines - 10 - 909806 / CUU 145378Q * - - ίο - contains an opening with a corresponding locking device, with which the performance or delivery height of the pump can be regulated. 8 * Apparatus for chemical companies in general, especially for yarn treatment by circulating liquids, characterized in that it contains a pump according to one or more of claims 1 "to 7 * 909806 / 04U