WO1998009023A1

WO1998009023A1 - Device for keeping bodies of water ice-free

Info

Publication number: WO1998009023A1
Application number: PCT/EP1997/004525
Authority: WO
Inventors: Dieter Hoffmeier
Original assignee: Oase-Pumpen Wübker Söhne Gmbh & Co., Maschinenfabrik
Priority date: 1996-08-29
Filing date: 1997-08-20
Publication date: 1998-03-05
Also published as: DE19634806A1; EP0857240A1

Abstract

The invention concerns a device (1) for keeping ice-free at least given areas of a body of water, in particular a garden pond, preventing it from becoming iced-over. In order to keep labour and costs to a minimum, the device (1) comprises a float (2) for effective residual aeration of the water in freezing weather. To that end, the float (2) is provided with a mounting (4) for a water outlet directed towards the surface of the water.

Description

Ice-free holder

The invention relates to an ice-free holder according to the preamble of An¬

saying 1.

With external water surfaces such as garden ponds, there is regular

a great interest not to let them freeze completely in winter, at least

to ensure a sufficient minimum supply of water with oxygen

len. This is particularly important when a pond is stocked with fish

but otherwise necessary in the interest of other living things in the pond

his.

There have already been many attempts at ice-free holders with reeds, bundles of straw, raw

given pure or simple floats, but only as long

remain effective as they are not frozen on the underside or frozen on the inside

are.

On the other hand, it is known to have garden ponds in the manner of flowing water

keep open by a strong current, which is the disadvantage

a high energy consumption and also disadvantage of an even strong one

Cooling of the water caused by the circulation, so that life in the

Pond cannot come to a winter dormancy and persistent Frost exposed to the risk of sudden freezing down

is. In addition, the construction effort is only justifiable if from garden ar¬

from a architectural point of view or a river for fish farming

is to be specified.

Accordingly, the object of the invention is to reduce the

effort and cost and without serious intervention in a Was¬

effective residual ventilation of the water below a water

water surface with a gentle and natural water treatment

hen.

According to the invention, this object is achieved by an ice-free device according to the

Preamble of claim 1 starting with the characterizing feature

of claim 1 solved.

It has been shown that it is sufficient with only a few watts of pumps

performance required, through a water outlet against the water surface

directed liquid flow as a result of water movement and as a result of

Feeding warmer water from deeper water layers to an ice opening

maintain even in frost. This ice opening can, unlike star¬

general water circulation in a standing body of water, for example

a garden pond, limited to a very small ice-free area

be what not only with regard to a small amount to be raised for it Pump performance is of interest, but also in view of the fact that a

Ice cover otherwise forms thermal insulation and a garden pond too

protects against rapid freezing. A steadily passie¬ this ice opening

render light water flow is on the other hand very well able to aus¬

sufficient to absorb oxygen due to its movement and into the water

to be entered.

Typically, water is recirculated from the water outlet

Pond or the like. Water supplied, although basically fresh water

supply from outside is possible. When the water is circulated from below

In particular layers, the water outlet can be a pressure hose, for example

zen a submersible pump or over a more or less short

Pipe can be connected to an underwater pump. As a rule, however

in the sense of flexible handling, it is preferred that the water outlet

is the end of a hose connected to the discharge nozzle of a pump in Ver¬

bond stands, whereby the pump is located as a submersible pump at a suitable lower point in the pond. Basically, are also outside the pond

arranged pumps with hose or pipe connections to the pond

reversible, although there is a risk of freezing here if the

Commissioning did not take place early enough.

Three embodiments of the invention are shown in the drawing and

are described in more detail below. The drawing shows: Fig. 1 shows an ice-free holder obliquely from above with a Druck¬

water hose and an underwater pump,

2 ice-free holder according to FIG. 1 in a sectional side view,

3 enlarged detail III from FIG. 2,

4 cross-sectional view of detail III in Fig. 2,

Fig. 5 side view of the ice-free holder according to Fig. 2, arranged

in a water pond,

Fig. 6 shows a second embodiment of an ice-free in part

5 is a sectional side view corresponding to FIG. 5,

7 section along line Vll-Vll in Fig. 6,

Fig. 8 view in the direction of arrow VIII in Fig. 6 and

Fig. 9 side view of a third embodiment of the ice-free holder. 1 to 5, an ice-free holder is designated as a whole by 1, which egg

NEN floating body 2 and on a bracket arm 3, a bracket 4th

for a water outlet 5 carries. The water outlet ^'is in communication with the

Bracket 4 formed by the end of a pressure hose 6, which over

a pressure port 7 of an underwater pump 8 is fed, which in turn

is operated via an electrical supply cable 9.

Underwater pumps of this type are commercially available, but these are common

be provided with a set-up and / or filter housing 10,

which is a suction and suction of deposits in particular

should reduce when the pump is on the bottom of a garden pond, basin

or the like. However, for the function of the ice-free holder there is

cher way the possibility of the pump 8 on the hose 6 and thus on Eisfrei¬

to arrange the holder 1 suspended in a floating position, instead of the hose 6

also a solid pipe or even a direct connection of the pressure pipe

zens 7 can be provided with the bracket 4.

In principle, the pump can also be arranged outside the water,

with suction and pressure lines leading out of the water, for example in

Tubular shape, but this then very critical areas on and over

get the water surface in which to worry against freezing

must be worn, be it through special insulation measures or

by commissioning in good time before the onset of frost. As can be seen in particular from FIG. 2, the floating body 2 consists of egg

nem rounded part on the outside and solid part on the inside. Preferably

as a floatable material, a foam plastic, in particular hard foam,

Find use. The rounded, approximately elipsoidal shape offers ins¬

special flow possibilities on the underside and circumference and

in particular also little in the case of approach surfaces when the ice layer comes up

a surface of water.

The axially symmetrical floating body has an axial passage

passage opening through which the holding arm 3 from above to a stop

bund 11 through like a skewer can be inserted. The holding arm 3 has four

Radial ribs on (see FIG. 4), a Kreu¬ below the floating body 2

zquerschnitt present while they are still within the float 2

wear a tubular jacket 12, which is even against the only

limited pressure-resistant material of the float 2 secures.

The holder 4 at the end of the holding arm 3 is tapered towards the end

formed and has sawtooth on the outer edges of the individual ribs

term projections 13, which achieve a certain barb effect. This

Design is particularly suitable to attach an elastic plastic or rubber hose. But it can also hold a pipe with it

become. The cross section of the bracket can be within the cross section of the

Hose 6 clears a water outlet 5 (four-parted), which runs along the holding arm 3

is directed upwards and then laterally below the float 2

is diverted to the water surface. As can be seen from Fig. 5, a

Distraction evenly on all sides with symmetrical arrangement and

still water. The basic function of the ice-free holder remains

but also otherwise obtained if, for example, due to side effects

Redirecting the upward water flow from the pump 8 more

or less one-sided. In any case, the pump delivers from lower lying

the and thus warmer layers of water sucked up and

ensures with the supply of warmer water and also through the water movement

that a small area on the ice-free holder remains open. In

5 ice layer 14 indicated on both sides of the ice-free holder 1 retains a hole, for example a ring hole 15.

An Eisfrei¬ shown in FIGS. 6 to 8, generally designated 16

holder, which here again in accordance with Fig. 5 within a

Hole 15 of an ice layer 14 is shown, differs from the Eisfrei¬

holder 1 according to the preceding description in particular in that he

in one piece with a hollow area 17 as a float in one of them

below with ribs formed in a cross-section cross arm 18 über¬

goes and opens out on the underside in a holder 19, which corresponds entirely the bracket 4 is designed according to the first embodiment. Also

this bracket 19 should be plugged together with a pressure hose 6,

which forms an upward water outlet 20. 8 is ver¬

clearly shows how the cross-section of the bracket 19 with ribs 21 on the one hand

holds the water outlet of the pressure hose 6 from the inside, but at the same time

also unlocks and keeps essentially free.

In addition to the one-piece design, it is remarkable about this embodiment that the

Formation of a hollow body, such as a blown body, a larger pressure and

Impact resistance for a robust continuous operation promises. That too is

Integrity between floating body 17 and holding arm 18 advantageous for one

rigid alignment of the water outlet 20 to the float 17 and thus

to the water surface. In the same sense, the ribs are at their mouth

end of the float with rounded edges 22,

that improve flow diversion.

Here, too, the holding arm 18 offers a distance between the floating body

17 and the holder 19, which the water outlet 20 down into the Was¬

water relocated so that not already with a first thin ice sheet

Blockage of the water outlet 20 is to be feared if the connected

This submersible pump is only put into operation after frost has started. 9 shows a further variant of an ice-free holder 23 with one as well

hollow float 24, which differs from the embodiment according to FIG. 6

essentially differs in that the float 24 is larger and

is more rounded, so as to avoid attack edges for

Ice and also for surface dirt to form and a good flow around

enable below.

Claims

Expectations

1. Ice-free holder for at least partially keeping a water surface free

che, especially a garden pond, against closed icing

a floating body, characterized in that the floating body

(2,17,24) with a holder (4,19) for one directed towards the water surface

Water outlet (5.20) is equipped.

2. Ice-free holder according to claim 1, characterized in that the Halt¬

tion (4,19) the water outlet with the outlet pointing essentially upwards

direction.

3. ice-free holder according to claim 1 or 2, characterized in that the

Water outlet is held at a distance from the water surface.

4. ice-free holder according to claim 1, 2 or 3, characterized in that the

Bracket (4,19) trained as a plug-in approach for a pipe or hose end

det.

5. Ice-free holder according to claim 4, characterized in that the Halt¬

tion (4,19) has radial ribs (21).

6. ice-free holder according to one of claims 1 to 5, characterized in

that the bracket (4,19) is part of a bracket arm (3,18).

7. ice-free holder according to claim 6, characterized in that the Halt¬

arm (3) is inserted into the float (2).

8. ice-free holder according to claim 6, characterized in that the Halt¬

arm (18) is integrally formed with the floating body (17.24).

9. Ice-free holder according to one of claims 1 to 8, characterized in

that the floating body (17.24) is designed as a hollow plastic body.

10. Ice-free holder according to one of claims 1 to 8, characterized in

that the floating body (2) consists of a foam plastic.

11. Ice-free holder according to one of claims 1 to 10, characterized gekennzeich¬

net that the floating body (2,17,24) at least in an immersed part

has rounded outer surfaces.

12. Ice-free holder according to one of claims 1 to 11, characterized gekennzeich¬

net that he verbun¬ on the bracket (4,19) with an underwater pump (8)

that is.