Emptying Tube in the Riser Pipe for Water-Conducting Lines at Risk of Frost in Winter

Abstract

The invention relates to an apparatus for emptying water-conducting lines at risk of frost, comprising an emptying tube (4) and a riser pipe (15), the emptying tube (4) being arranged in the interior of the riser pipe (15), and the riser pipe (15) being configured in such a way that the riser pipe (15) can be connected to the lowest point of the water-conducting line, with the result that, in the case of connection to the water-conducting line (1), the emptying tube (4) is guided in the interior of the riser pipe (15) to the lowest point of the line system which is formed, and water can be removed from the line system via the emptying tube (4).

Further aspects of the invention relate to a line system comprising an apparatus of this type, and to a method for emptying a line system of a pool.

Claims

1. An apparatus for emptying water-conducting lines at risk of frost, comprising an emptying tube and a riser pipe, the emptying tube being arranged in the interior of the riser pipe, and the riser pipe being configured in such a way that the riser pipe can be connected to the lowest point of the water-conducting line, with the result that, in the case of connection to the water-conducting line, the emptying tube is guided in the interior of the riser pipe to the lowest point of the line system which is formed, and water can be removed from the line system via the emptying tube.

2. The apparatus as claimed in claim 1, wherein the riser pipe has a siphon at the lowest point, which siphon forms the lowest point of the line system in the case of connection to the water-conducting line, with the result that water which remains in the water-conducting line can collect in the siphon and from which the water can be removed via the emptying tube.

3. The apparatus as claimed in claim 1, wherein the apparatus comprises, furthermore, a pump which is connected to the emptying tube and via which, in the case of connection to the water-conducting line, the water can be extracted via the emptying tube.

4. The apparatus as claimed in claim 1, wherein the riser pipe is closed in a pressure-resistant manner, and the apparatus has two connectors at a second, upper end of the riser pipe, it being possible for a first connector to be connected to a compressed air source, via which air can be blown from above into the riser pipe, whereas a second connector is connected to the emptying tube, with the result that, in the case of increasing air pressure, water is pressed via the lower end of the emptying tube out of the line system.

5. The apparatus as claimed in claim 4, wherein two valves are provided which can close the two connectors in a pressure-tight manner, with the result that dismantling of the apparatus from the water-conducting line is not necessary for summer operation.

6. The apparatus as claimed in claim 3, wherein, in addition to a pump, the apparatus has a measuring point, in particular an electric water detector, which is set up to switch on the pump if water flows in the line system.

7. The apparatus as claimed in claim 1, wherein the emptying tube is configured as a rigid pipe or as a flexible hose.

8. The apparatus as claimed in claim 1, wherein a second end of the riser pipe can be closed, with the result that the apparatus can remain connected to the water-conducting line during normal operation of the latter.

9. A line system with at least one water-conducting line, the line system comprising: an apparatus for emptying one or more water-conducting lines, the apparatus comprising an emptying tube and a riser pipe, the emptying tube being arranged in the interior of the riser pipe, and the riser pipe being configured in such a way that the riser pipe can be connected to the lowest point of the water-conducting line, with the result that, in the case of connection to the water-conducting line, the emptying tube is guided in the interior of the riser pipe to the lowest point of the line system which is formed, and water can be removed from the line system via the emptying tube. wherein the apparatus is connected for emptying purposes to the water-conducting line at the lowest point of the latter.

10. A method for emptying a water-conducting line of a pool for winter operation, the method comprising: connecting an apparatus for emptying water-lines to a water nozzle of the pool, the apparatus comprising an emptying tube and a riser pipe, the emptying tube arranged in an interior of the riser pipe, the rise pipe configured to be connected to a lowest point of the water-conducting line, such that, in the case of connection to the water-conducting line, the emptying tube is guided into the interior of the riser pipe to a lowest point of the line system, such that water can be removed from the line system via the emptying tube; and (i) pumping water from the water conducting line via a suction pump which is connected to the emptying tube; or (ii) pressing water out via the emptying tube by introducing compressed air into the water conducting line.

Description

DESCRIPTION OF THE FIGURES

[0032] The figures diagrammatically show the subject matter of the invention.

[0033] FIG. 1 shows that the water level in a pipe system which is open at two ends always corresponds to the higher of the lowest lying opening.

[0034] FIG. 2 shows a first embodiment of an apparatus for emptying water-conducting lines at risk of frost.

[0035] The apparatus comprises a riser pipe 15 and an emptying tube 4 which is arranged in the interior of the riser pipe 15.

[0036] In the situation which is shown in FIG. 1, a water-conducting line 1 opens on a pool wall 2 of a pool into a water nozzle 14. This water-conducting line 1 is to be emptied, without it being necessary for the water level in the pool to be lowered below the height of the water nozzle 14. The line 1 leads, for example, to an apparatus for the circulation of water.

[0037] In order to empty the water-conducting line 1, the apparatus according to the invention is connected to the water nozzle 14 of the pool. For the connection to the water-conducting line or for the connection to the water nozzle 14, a connector piece 13 is configured in the vicinity of the lower end of the riser pipe 15. As a result, a line system is provided, a region of the riser pipe 15, which region is configured as a siphon 12, being the lowest point of the line system which is formed. The emptying tube 4 protrudes with a lower end 11 into the siphon 12.

[0038] In order to remove the water, the apparatus additionally comprises a suction pump 6, the pump being controlled by way of a measuring point in the form of a water detector 10. The measuring point 10 activates the suction pump 6 if there is water in the siphon 12. For the removal of water, further water nozzles 14 which are possibly present are closed in addition, with the result that no water can flow from the pool into the line system which is formed.

[0039] FIG. 3 shows a second embodiment of the apparatus for emptying lines which are at risk of frost. As has already been described with reference to the first embodiment of FIG. 2, the apparatus is connected to one of the water nozzles 14 of a pool. In contrast to the first embodiment, the riser pipe 15 comprises, in the vicinity of the second, upper end, a connector for a compressed air line 9, a compressed air pump 7 which is connected to it, and a measuring point in the form of a water detector 10 for checking whether there is water in the riser pipe 15 or in the siphon 12 of the riser pipe 15. In addition, shut-off valves 5 and 8 can also be seen, by way of which the emptying tube 4 and the compressed air line 9 can be closed. In the case of this illustration, the riser pipe 15 is fixed via a connector piece 13 to a water nozzle 14 which is situated in the pool wall 2. The water nozzle 14 leads in turn to the water-conducting line 1 which is provided, for example, for the circulation of water. Via the emptying tube 4, the water which is situated in the siphon is pressed out of the riser pipe 15 by way of the elevated air pressure if compressed air is introduced into the line via the compressed air line 9.

[0040] FIG. 4 shows a third embodiment of the invention. In contrast to the second embodiment which is described with reference to FIG. 3, the riser pipe 15 is attached directly to the water-conducting line 1. Here, the riser pipe 15 is configured for a permanent connection to the water-conducting line 1, and is preferably connected fixedly to the latter. Here, a siphon 2 is configured at the first, lower end of the riser pipe 15, which siphon 2 is the lowest point of the line system which is formed by way of the water-conducting line 1 and the riser pipe 15. In the embodiment which is shown, the emptying tube 4 is again arranged in the interior of the riser pipe 15. Furthermore, as has already been described with reference to the second embodiment of FIG. 3, the riser pipe 15 comprises a compressed air line 9 which is connected to the compressed air pump 7. The compressed air pump 7 is in turn connected to a measuring point which is configured as a water detector 10 and checks whether there is water in the riser pipe 15 or in the siphon 12 at the lower end of the riser pipe 15. In addition, the shut-off valves 5 and 8 can also be seen again, by way of which in each case the emptying tube 4 and the compressed air line 9 can be closed.

[0041] FIG. 5 shows a fourth embodiment of the invention. In contrast to the first embodiment which is described with reference to FIG. 2, the riser pipe 15 is attached directly to the water-conducting line 1. Here, the riser pipe 15 is configured for a permanent connection to the water-conducting line 1, and is preferably connected fixedly to the latter. Here, a siphon 2 is configured at the first, lower end of the riser pipe 15, which siphon 2 is the lowest point of the line system which is formed by way of the water-conducting line 1 and the riser pipe 15. In the embodiment which is shown, the emptying tube 4 is again arranged in the interior of the riser pipe 15, and is configured as a suction tube. To this end, it is provided that a second, upper end of the riser pipe 15 is open, with the result that air can flow into the line system which is formed by way of the water-conducting line 1 and the riser pipe 15. Furthermore, the apparatus comprises an extraction pump 6 which is connected to a measuring point which is configured again as a water detector 10. The water detector 10 serves again to check whether there is water in the riser pipe 15 or in the siphon 12, and actuates the extraction pump 6 accordingly.

LIST OF DESIGNATIONS

[0042] 1 Water-conducting line [0043] 2 Pool wall [0044] 3 Closure lid of the riser pipe [0045] 4 Emptying and winter tube [0046] 5 Shut-off valve [0047] 6 Extraction pump [0048] 7 Compressed air pump [0049] 8 Shut-off valve [0050] 9 Compressed air line into the riser pipe [0051] 10 Water detector [0052] 11 Lower tube end in the riser pipe [0053] 12 Siphon in the riser pipe [0054] 13 Connector piece from the riser pipe to the pool nozzle or a water line [0055] 14 Water nozzle [0056] 15 Riser pipe