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.

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.