EP2694741B1 - Suction float and collecting device, and collection vessel - Google Patents

Description

The invention relates to a suction float for removing liquid and / or foam-like contaminants on surfaces of liquids. Furthermore, the invention relates to a collecting device with a Absaugschwimmer and a collecting vessel.

Impurities on surfaces of liquids can be liquid or foamy. Examples of impurities are substances such as oil, crude oil, bound oil, foams, chemicals or impurities of all kinds, as well as garbage, the impurities being on the liquid, for example water or the like in engine work tanks, water tanks, settling tanks, ponds, lakes, rivers or seas , swim or float.

Oceans, lakes or rivers are polluted with industrial residues, oils or other wastes and contaminated. These impurities drift on the surface and must be removed. Ponds are contaminated, for example, by leaves or other plant residues. For example, machine basins can contain cooling fluids that are contaminated with oils or the like during the work process.

Various arrangements are known in the art for removing contaminants from surfaces of liquids.

Standard means for extracting contaminants on surfaces of liquids are, for example, vacuum pumps, which suck off large quantities of liquid in addition to the actual contaminants. Alternatively, absorbents, such as binders or natural fibers, such as cotton used to bind the impurities and later to fish in firmer bound form.

For further treatment of the extracted impurities and liquids, for example, oil separators or light liquid or gasoline separators are known, which deposit the impurities from the liquid in a corresponding subsequent treatment plant so as to remove the impurities located on surfaces of liquids.

Further, in order to combat oil spills and accidents of oil rigs or tankers on oceans and waters, various arrangements are known in the art to remove contaminants from the surface of the sea or waters.

Floating oil on the surface of the water can be picked up by special ships, folding ships, conventionally designed ships with outriggers, catamarans or mixed constructions with catamaran foredeck. For this purpose, for example, in the prior art, a double hull ship "Thor" is known that opens both halves of the ship from the bow up to 65 degrees to oil intake, creating an open triangle is formed, in which the oil collects. At a low operating speed, the oil is forced through weir openings in both halves of the ship and transported by separators with the charge pumps in the cargo tanks. The actual pick-up devices are based on the principle of a weir that is overflowed by the oil layer or oil-absorbing rotating rollers or brushes with scrapers that absorb the impurities.

After skimming, the still water-containing oil is further purified by means of separators, the water being largely separated. For low and high oil viscosities partially different pumping systems are used.

Furthermore, skimmers are generally known in the art. A skimmer is a device in man-made lakes, garden ponds or swimming pools and other liquid containers, which sucks the dirt from the water surface. Dust, leaves, oil or other contaminants cause the pond / lake water to be enriched with too many nutrients from the outside and thus become cloudy and cloudy. A skimmer in a pond or lake prevents this process and does not allow the surface contamination to cloud the water. In larger bodies of water, a correspondingly larger number of extraction points will be installed. Skimmers can also be used to clean, for example, cooling water. Skimmers have a pipe with a large diameter built into the liquid vertically, wherein the diameter of the pipe is made larger / wider than the water surface. Through a pipe connection to which a suction pump is connected and in front of which a coarse dirt filter or a screen is attached, the suction of the contaminants from the surface of the liquid.

Another field of application of corresponding suction devices is the use in industry. In order to obtain stable cooling lubricants in the machining industry, the necessary concentrate must be thoroughly mixed with water. For the separation of unwanted oils exist systems that quickly and efficiently deposit the unwanted oils and other contaminants, for example from cooling lubricants, without changing the base fluid. For this purpose, suction swimmers or snorkel swimmers are used for suction, which are arranged in a liquid reservoir.

From the publication DE 3916026 A1 a device for collecting gasoline, oil and similar substances floating on the water is known, the device having a weir, which is composed of floats and has a skimmer connected to a pump. The device has a floating body box-like wall elements on, which float in the water about half their height floating and have an elongated shape with upright arranged in rectangular cross-section rectangular shape. For dimensionally stable connection of the individual wall elements plug-in elements are provided at both ends.

From the publication DE 2 407 409 For example, there is known an apparatus for removing floating matter such as oil, foam and the like by using a suction float on the liquid surface to suck the contaminants from the liquid surface through a suction pipe. This document discloses the preamble of claim 1 and is considered to be the closest prior art.

Furthermore, from the DE 2 407 409 A a device for the removal of floating substances, such as oil, foam and the like is known, wherein a provided with a floating substance receiving passage channel provided main body further at least one buoyant structure or a buoyant structure is provided, the structure or the structure relative to Main floating body is movable up and down. By means of this device, for example, oil, foam and the like floating on the water of rivers, lakes, seawater, liquid surfaces in settling tanks, water tanks and the like can be eliminated.

From the publication DE 43 36 963 A1 a device for absorbing buoyant liquids, such as oil, gasoline or the like is known, wherein a Ölabsaugstation with a cylindrical oil catcher and resting on the water surface float in cooperation with a parabolic suction trough by forming inlet fins, the impurities to be collected from the liquid surface in a Promotes collection container.

Next is the document US 5,091,096 a method and a device for the removal of oil or marine sludge known, which at the Water surface floating oil is removed via a collecting device in the form of an open-topped spatial arrangement and a suction assembly.

• Beim Einsatz von bekannten Hochseesystemen ist die Effizienz der derzeitigen Systeme bereits bei rauer See ab 1 Meter Wellenhöhe stark eingeschränkt, ab 2 Meter ist ein Einsatz nicht mehr sinnvoll. Dies bedeutet eine Einsetzbarkeit bis maximal Windstärke 4. Da jedoch auch bei stärkeren Windstärken die Verunreinigungen weiter abgetragen werden müssen, bedarf es hier einer Verbesserung. Ebenso ist die Einsatzgeschwindigkeit auf 1 bis 2 Knoten begrenzt. Die Auffangbreiten betragen bei den größeren Schiffen bis ca. 40 Meter.

Problems of suction devices hitherto known in the prior art:

• When using known offshore systems, the efficiency of the current systems is already severely limited in rough seas from 1 meter wave height, from 2 meters, an insert no longer makes sense. This means that it can be used up to a maximum wind speed of 4. However, since the impurities have to be removed even with stronger wind forces, this requires an improvement. Likewise, the speed of use is limited to 1 to 2 knots. The collection widths are up to 40 meters for the larger ships.

In other applications, such as industrial plants or other waters, the adaptability to changing liquid levels is relatively difficult, so that usually a manual readjustment is required.

The present invention has for its object to provide an arrangement which makes it possible to remove liquid and / or foam-like contaminants on surfaces of liquids, wherein an automatic self-adaptation takes place to changing liquid heights. These changing liquid levels can be falling or rising liquid levels or even swell. When sucking off the impurities, only small amounts of liquid should be removed, as this way the further processing process can be made extremely efficient, since only small amounts of liquid are contained, which have to be separated.

This object is achieved with an arrangement according to claim 1, a collecting device according to claim 7 and a collecting vessel according to claim 9.

A suction float comprising a suction pipe for transporting sucked liquid, a float having a top and a bottom, a first passage from the top to the bottom for passing the Absaugrohrabschnittes and a second passage from the bottom to the top, wherein the Absaugrohrabschnitt after passing through the first passage is guided along the underside of the floating body and formed penetrating into the second passage, wherein the float is movable along the Absaugrohrabschnittes, allows the removal of liquid and / or foam-like contaminants on surfaces of liquids.

Such Absaugschwimmer is able to adapt itself to changing liquid levels, since the float is located on the surface, preferably just with the top of the liquid surface.

The float mentioned here is to be understood not only a hollow body with a corresponding buoyancy per se, but also floating body with another filling, such as plastic or other materials, or even body of only one material without cavity. The body must be designed such that it floats on the surface of a liquid and for this purpose has a corresponding buoyancy.

Such Absaugschwimmer can be used for the applications mentioned in this application. These include, for example, emulsion containers used on machine tools, small degreasing systems, modular sewage treatment plants, CNC metalworking, surface technology, wastewater treatment, plant construction as well as on ponds, pond systems, waters, port facilities or the sea. Of course, further application areas in which impurities present on a surface must be removed are conceivable.

The liquid and / or foam-like contaminants to be removed on the surface of the liquid are conducted on the upper side of the floating body through the second passage into the suction pipe section and removed there. For this purpose, for example, a pump is arranged, which sucks the impurities.

With corresponding changes in the liquid level, the float automatically moves with its surface along the surface of the liquid, so that only minimal amounts of liquid are removed. As a result, a particularly efficient removal of impurities is possible, since in the wake of the removal of the extracted impurities contain hardly any components of the liquid.

By guiding the Absaugrohrabschnittes in the first and the second implementation is a movement, namely a floating of the float according to the liquid level or the height possible without twisting or tilting of the float. A drifting of the float is thus efficiently prevented.

The sections of the suction pipe section are to be selected so that at a maximum Aufschwimmbewegung the float along the Absaugrohrabschnittes the suction pipe does not completely herausfährt from the second implementation, so that the end of Absaugrohrabschnittes is at least always penetrating into the second passage.

Characterized in that the outer diameter of the suction pipe is less than or equal to the inner diameter of the first and / or second passage, a low-friction to frictionless undisturbed movement is possible by the floating of the float along the Absaugrohrabschnittes.

If the seal between the first and / or the second passage and the Absaugrohrabschnitt is designed as a hydraulic seal or as a sealing ring, on the one hand little liquid is sucked from the bottom of the float and on the other hand there is no mixing of the liquid with the impurities by passing through during the current adjustment and adjustment to the liquid levels or height.

To limit the free movement of the float, a stop on Absaugrohrabschnitt is provided. This can, depending on the application, allow correspondingly high strokes or prevent too high a floating.

Characterized in that a baffle plate is provided on Absaugrohrabschnitt, which is at least partially protective, preferably in the working direction in front of and / or arranged around the float, the pressure is taken from the float at too high a supply and at high relative speeds, so that the liquid Baffle sheet flows around and then indirectly meets the float. The baffle plate prevents tilting of the float.

For this purpose, the baffle plate can be arranged both below the surface of the liquid and above the surface of the liquid or else above and below the surface of the liquid. The height is to be selected correspondingly high, that not too much flow resistance is given and that there is sufficient protection against the pressure of the liquid.

When the top of the buoyant body is funnel-shaped, the liquid and / or foamy contaminants may be directed to the second passage.

Additionally or alternatively, an edge is arranged on the upper side, which preferably has notches and / or notches, so that only a certain amount of impurities reaches the floating body per time. The collecting device comprises a suction float with a Absaugrohrabschnitt for transporting sucked liquid, a float with a top and a bottom, a first passage from the top to the bottom for carrying the Absaugrohrabschnittes and a second passage from the bottom to the top, wherein the suction pipe after the passage is guided through the first passage on the underside of the float along and is formed penetrating into the second passage, wherein the float along the Absaugrohrabschnittes is movable, a suction for transporting sucked impurities and / or liquids, a holder for fastening, and a suction device and / or separation device, wherein the liquid and / or foam-like contaminants are sucked on the surface of the liquid via the Absaugschwimmer by the suction device and / or Hi The separator can be deposited accordingly, allowing the collection of liquid and / or foamy contaminants on surfaces of liquids. This provides an efficient collection device for removing contaminants from a surface and separating them from the remains of the liquid in a particularly efficient manner, so that only small liquid residues are present in the contaminants.

Separators include screens, oil separators, light liquid separators, and the like, as needed. A particularly suitable separation apparatus includes a coalescence separator as a final stage. Such a Koaleszenzabscheider consists of V-shaped sheets, which are like roofs arranged one above the other. Through holes at the bend edge of the sheets, the smallest droplets of the contaminant dispersed in the liquid accumulate into large droplets with more buoyancy and can thus be separated by the density difference at the surface in a final stage.

Characterized in that supply means for supplying the liquid and / or foamy contaminants on the surface of the liquid to Absaugschwimmer are provided, preferably two the surface of the liquid passing baffles, an efficient supply is ensured. With the help of the surface of the liquid passing baffles a much larger surface is processed.

This enlargement of the working surface can, for example, be further improved on the high seas if, in addition, tractors advance with corresponding inflatable barriers in front of a special vessel, the barriers being designed as an extension of the baffles.

The Absaugschwimmer is held in the collecting device via the suction pipe in the liquid. This suction pipe is attached and stored via a bracket to a vessel, edge, ship or corresponding object. As a particular embodiment, the Absaugschwimmer can be folded up and kept in a transport and / or maintenance position. This is done by pivoting the suction tube, which is designed or reinforced accordingly supporting.

With the aid of a collecting vessel comprising a collecting device with a Absaugschwimmer with a Absaugrohrabschnitt for transporting sucked liquid, a float with a top and a bottom, a first passage from the top to the bottom for carrying the Absaugrohrabschnittes and a second passage from the bottom to the top wherein the suction pipe section is guided after passing through the first passage on the underside of the float along and is formed penetrating into the second passage, wherein the float along the Absaugrohrabschnittes is movable, a suction pipe for transporting sucked impurities and / or liquids, a Mount for attachment, and a suction device and / or a separating device, wherein the liquid and / or foam-like contaminants on the surface of the liquid through the Absaugschwimmer by Absaugv orrichtung be sucked and / or deposited with the aid of the separating device, wherein the suction float is attached to the ship preferably via a fastening and / or mounting on the ship deck and / or on the hull via the suction pipe, it is possible to liquid and / or foam-like contaminants, such as For example, oil or the like. To remove very efficiently from the sea or surface of the water. In particular, this is possible even with fluctuating water levels and / or waves.

Characterized in that two passing through the surface of the liquid baffles are preferably arranged on an attachable to the hull, adjustable holding device on the ship in a common attachment point such that they form an at least approximately V-shaped ground plan in the working direction with an opening angle in the working direction wherein the Absaugschwimmer is arranged in the middle of the two baffles, preferably a baffle plate is disposed on the side facing away from the common attachment point side of Absaugschwimmers, so the efficiency is improved at higher wave activity. Due to the baffle plate in appropriate dimensions directly or with a slight distance to the float is a good protection against excessive water pressure.

• Eine erste Einheit stellt der Absaugschwimmer dar, der als Übergabepunkt den Übergang von dem Absaugrohrabschnitt zu der Absaugrohrleitung aufweist. Diese erste Einheit kann leicht gehandhabt und transportiert werden.

Further embodiments consist in a special combination of components to units:

• A first unit represents the Absaugschwimmer, which has as a transfer point the transition from the suction pipe to the suction pipe. This first unit can be easily handled and transported.

A second unit in this context is the combination of suction pipe in connection with the suction device and / or the separation device, at least a first separation device, is.

A third unit in this context is the apparatus for enlarging the work surface with the baffles and a corresponding support for a ship's hull or the like.

These three units can be provided, preferably with the help of shipping containers, correspondingly in larger numbers and if necessary transported to the place of use. There ships of any size can be equipped with a suitable collection device and begin with the removal of impurities such as oil or the like. This is a way to get quickly to a variety of locations and there to use the existing resources, namely the ships of different design on site, for combating pollution by the corresponding universal and customizable brackets, adapters and fasteners and fixtures to the be adapted to given ship shapes.

For this purpose, continue to use a mothership on which a large number of individual small ship units are provided with appropriate design, which begin in a disaster area with the elimination of impurities. For this purpose, the advantage of only a shallow draft using a collecting device according to this description is of great advantage, especially in the coastal area, because so quickly a whole coastal region can be cleaned before the pollutions even pollute the coast.

Hereinafter, embodiments of the invention will be described in detail with reference to the accompanying drawings.

Fig. 1

eine schematische Darstellung eines ersten Ausführungsbeispiels des erfindungsgemäßen Absaugschwimmers;

Fig. 2

eine schematische Darstellung eines zweiten Ausführungsbeispiels des erfindungsgemäßen Absaugschwimmers bei der Verwendung in einem Behältnis;

Fig. 3

eine schematische Darstellung eines dritten Ausführungsbeispiels des erfindungsgemäßen Absaugschwimmers bei der Verwendung an einem Schiff in einer Draufsicht;

Fig. 4

eine schematische Darstellung des dritten Ausführungsbeispiels des erfindungsgemäßen Absaugschwimmers bzw. der Sammelvorrichtung bei der Verwendung an einem Schiff in einer Seitensicht und

Fig. 5

eine schematische Darstellung des dritten Ausführungsbeispiels der erfindungsgemäßen Sammelvorrichtung an einem Schiff in einer Draufsicht in einem Reisemodus.

Show:

Fig. 1

a schematic representation of a first embodiment of the invention Absaugschwimmers;

Fig. 2

a schematic representation of a second embodiment of the invention Absaugschwimmers when used in a container;

Fig. 3

a schematic representation of a third embodiment of the invention Absaugschwimmers when used on a ship in a plan view;

Fig. 4

a schematic representation of the third embodiment of the invention Absaugschwimmers or collecting device when used on a ship in a side view and

Fig. 5

a schematic representation of the third embodiment of the collecting device according to the invention on a ship in a plan view in a travel mode.

In Fig. 1 is a schematic representation of a first embodiment of the invention Absaugschwimmers 1 shown.

The suction float 1 comprises a floating body 11 having a lower side 112 and an upper side 111. The floating body is penetrated by a first 13 and a second feedthrough 14, each from the upper side to the lower side.

Furthermore, the suction float 1 comprises a suction pipe section 12. This suction pipe section 12 is guided from the upper side 111 through the first passage 13 and subsequently guided along the lower side 112. Subsequently, the suction pipe 12 is arranged to penetrate into the second passage 14 of the float 11 from the bottom 112.

With the help of Absaugrohrabschnittes 12 takes place a removal of liquids 2 and / or impurities 22, which at the second passage 14 in the Suction pipe 12 flow and are transported by a connected to the other end of Absaugrohrabschnittes 12 suction pipe 3 on.

At the suction pipe 12, a stop 15 is provided which limits movement in the direction X of the floating body 11. At this stop 15 a holder with a baffle plate 16 is arranged. The baffle 16 is at least partially disposed in front of or around the float 11 and serves to keep the pressure away from the floating body 11 by impinging large quantities of liquid 2. The baffle 16 may also be arranged on the float 11 itself. However, the arrangement on another component of the Absaugschwimmers 1 is preferable because a weight advantage and protection against unwanted forces for the float 11 is effected. The baffle 16 is to be designed in height so that protection over the entire stroke of the float is possible.

The stop 15 can also be realized differently. For example, a limitation may be provided within the float, which prevents too wide movement of the float 11 beyond the end of the Absaugrohrabschnittes 12 from the second passage 14 addition.

At the top of the floating body 11, an edge 113 is provided, which is provided with notches or notches 114.

The first 13 and second passage 14 are dimensioned such that they can receive the suction pipe 12 each. For this purpose, the suction pipe section 12 may be particularly preferably designed to be round. However, other shapes are also possible, with the respective cross sections in shape and dimensions to match.

The floating body 11 can be adapted to different liquid levels by moving freely along the suction pipe section 12, whereby the movement takes place in the direction X.

Hereinafter, the same reference numerals as in FIG Fig. 1 used. Their principal function is on Fig. 1 directed.

In Fig. 2 is a schematic representation of a second embodiment of the invention Absaugschwimmers 1 shown when used in a container. The container is exemplary of a container, a working vessel, a basin, ponds, lakes, rivers, seas or the like. To see.

The suction float 1 is freely arranged in the container with the aid of the at least relatively stationary suction pipe 3 and the suction pipe section 12 connected thereto. In the container there is a liquid 2 with a surface 21 at the liquid and / or foam-like contaminants 22 are located.

The float 11 is limited in its current state at its maximum deflection upwards by the stop 15. However, this also represents the maximum liquid level in the container. For higher liquid levels, however, the floating body 11 can be made longer and / or the suction pipe section 12, which penetrates into the second through-hole 14, can be made longer so as to realize a larger stroke of the floating body 11.

The contaminants 22 are sucked from the surface 21 of the liquid 2 through the second passage 14 from the top 111 of the float 11 forth and transported by the Absaugrohrabschnitt 12 along the bottom 112 of the float 11 and subsequently through the Absaugrohrabschnitt 12 through the first passage thirteenth of the floating body 11 and further transported by the suction pipe 3. This is shown by the arrows within the suction pipe section 12 and the suction pipe 3.

Because of the adaptable to the liquid 2 buoyancy of the float 11, the top 111 of the float 11 is always at the Surface 21 of the liquid 2 is located, almost exclusively only the contaminant 22 is removed, resulting in a very high efficiency of the collecting device as a whole. In particular, with changing liquid levels is a self-adaptation of the float 11 in the direction X.

The suction of the contaminants 22 according to the invention with conventional pumping and / or suction systems, as they are known in the art. The sucked impurities 22 are almost free of liquid 2, so that they can be easily disposed of or stored accordingly.

In Fig. 3 is a schematic representation of a third embodiment of the invention Absaugschwimmers 1 when used on a ship 8 in a plan view.

It is the float 11 shown in a plan view. The first 13 and second feedthrough 14 are shown. Overall, the arrangement of the first 13 and second bushing 14 may be reversed, so that depending on training and implementation, viewed in the direction of A, a guided ( Fig. 3 ) or pulled (13 and 14 swapped) Absaugschwimmer 1 is realized. In the first passage 13, the corresponding attachment of the Absaugschwimmers 1 is realized on the ship 8 via the suction pipe 12 and the suction pipe 3.

Further, on the ship 8, namely on the hull 82, a holding device 61 is attached, which is either fixedly mounted or is variably adjustable and removable designed. If the holding device 61 is variably adjustable and removable, the holding device 61 can be arranged on different ships 8 with different bow shapes, for example on the hull or on the hull and on deck. The holding device 61 serves to accommodate baffles 6. The baffles 6 your enlargement the working width and lead the contaminants 22 targeted to the Absaugschwimmer 1 so that these 22 can be removed there.

In the working direction A, a baffle plate is provided in front of the floating body 11, which keeps the wave activity or the water pressure generated by the operation of the ship 8 away from the floating body 11, so that this 11 can move freely in the direction X.

In Fig. 4 is a schematic representation of the third embodiment of the invention Absaugschwimmers 1 and the collecting device when used on a ship 8 shown in a side view.

There is a changing waterline shown in dashed lines. The float 11 continuously adapts to this waterline, so that the top 111 of the float 11 is always located on the surface 21 of the water 2. In the snapshot shown, the float 11 is located approximately in the middle of its possible range of motion, so that it can move even further up or down. The ship 8, on which the Absaugschwimmer 1 is arranged behaves in relation to the changing waterline quite calm and maintains an approximately constant relative position.

At this point is up for the fundamental working principle Fig. 1, 2 or 3 directed. Only the further processing or treatment is clarified here again, namely a suction device 4 on deck 81 or in the hull 82 of the ship 8 and a separator 5, here arranged in the hull 82 of the ship 8. After the separator 5 still storage tanks, not shown here, can be provided which can be filled with the removed contaminants 22 and later, if necessary, for example, on land in storage tanks, transport vehicles or at sea to another ship can be pumped.

The baffles 6, which are preferably made of a durable material, such as reinforced plastic, painted steel or stainless steel, increase the work surface. For this purpose, the guide plates 6 are formed such that their height encompasses the entire possible working range of the floating body 11.

For clarity, the presentation of the impurities has been omitted. The baffles 6 trap the surface contaminants 22 and pass them to the Absaugschwimmer 1, where they are removed accordingly.

In a special embodiment, the floating body 11 has a rim 113 with notches or indentations 114. These again increase the efficiency of the pre-separation and improve the supply to the float 11.

In Fig. 5 is a schematic representation of the third embodiment of the collecting device according to the invention shown on a ship 8 in a plan view in a travel mode.

In addition to the working mode, the ship 8 can also be operated in a travel mode. For this purpose, the Absaugschwimmer 1 is folded up, for example, and the baffles 6 drove together to form a sharp triangle, so that an upstream second bow is formed. As a result, the ship 8 can be operated at normal cruising speed, although a collecting device is provided.

LIST OF REFERENCE NUMBERS

1

Absaugschwimmer

11

float

111

top

112

bottom

113

edge

114

Notches / indentations

12

Absaugrohrabschnitt

13

first implementation

14

second implementation

15

attack

16

baffle

2

liquid

21

surface

22

pollution

3

suction pipe

4

suction

5

separating

6

baffles

61

holder

7

Attachment / bracket

8th

ship

81

deck

82

hull

A

working direction

X

movement direction

Claims (10)

1. A suction float (1) for removing liquid and/or foam-type impurities (22) from surfaces (21) of liquids (2), comprising a suction tube portion (12) for transporting suction-removed liquid (2) and/or impurities (22), a float body (11) having an upper side (111) and a lower side (112), and a first passage (13) from the upper side (111) to the lower side (112) for the suction tube portion (12) to be passed through,
   characterised in that
   a second passage (14) from the lower side (112) to the upper side (111) is provided, wherein the suction tube portion (12), after it has been passed through the first passage (13), is guided along on the underside of the float body (11) and constructed such that it penetrates into the second passage (14), wherein the float body (11) is movable (X) along the suction tube portion (12).
2. A suction float (1) according to Claim 1, characterised in that the external diameter of the suction tube portion (12) is smaller than or equal to the internal diameter of the first (13) and/or the second (14) passage.
3. A suction float (1) according to Claim 1 or 2, characterised in that a seal between the first (13) and/or the second (14) passage and the suction tube portion (12) takes the form of a hydraulic seal or a sealing ring.
4. A suction float (1) according to Claim 1, 2 or 3, characterised in that a stop piece (15) is provided on the suction tube portion (12) for delimiting the free movement (X) of the float body (11).
5. A suction float (1) according to one of Claims 1 to 4, characterised in that an impact plate (16) is provided on the suction tube portion (12) and is arranged, at least partially in protective manner, preferably in front of the float body (11), as seen in the operating direction (A), and/or around the float body (11).
6. A suction float (1) according to one of Claims 1 to 5, characterised in that the upper side (111) of the float body (11) is constructed in a funnel shape and/or in that there is arranged on the upper side (111) an edge (113) which preferably has incisions and/or notches (114).
7. A collecting device for collecting liquid and/or foam-type impurities (22) from surfaces (21) of liquids (2), comprising a suction float (1) according to one of Claims 1 to 6, a suction tube line (3), which is connected to the suction tube portion (12), for further transporting suction-removed impurities (22) and/or liquid (2), a mounting for securing the collecting device to or on an object, and a suction removal device (4) and/or a separation device (5), wherein the liquid and/or foam-type impurities (22) on the surface (21) of the liquid (2) are removed by suction through the suction removal device (4) by way of the suction float (1) and/or are separated off accordingly with the aid of the separation device (5).
8. A collecting device according to Claim 7, characterised in that feed means for feeding the liquid and/or foam-type impurities (22) on the surface (21) of the liquid (2) to the suction float (1) are provided, preferably two baffle plates (6) that move through the surface (21) of the liquid.
9. A collection vessel (8) comprising a collecting device according to Claim 7, wherein the suction float (1) is secured to the vessel (8), preferably by way of a securing and/or mounting (7) on the deck (81) of the vessel and/or on the hull (82) of the vessel, by way of the suction tube line (3).
10. A collection vessel according to Claim 9, characterised in that two baffle plates (6) that move through the surface (21) of the liquid (2), preferably by way of an adjustable holding device (61) that is securable to the hull (82) of the vessel, are arranged on the vessel (8) at a common securing point such that in the operating mode they form an at least approximately V-shaped outline with an angle opening in the operating direction (A), wherein the suction float (1) is arranged in the centre of the two baffle plates (6).

Images