Compensation assembly and hot water storage tank

Abstract

The invention relates to a compensation assembly for use in a hot water device and an associated hot water device. The hot water device includes a water tank for holding water to be heated, and the compensation assembly includes a compensation vessel and a ventilation component that allows air to be exchanged between the compensation vessel and the atmosphere. The ventilation component includes a blocking element designed to prevent water from leaking from the compensation vessel via the ventilation component.

1 . A compensation assembly for use in a hot water device having a water tank for holding water to be heated, the compensation assembly comprising:
 a compensation vessel; and   a ventilation component, wherein the ventilation component allows air to be exchanged between the compensation vessel and the atmosphere, the ventilation component including a blocking element, said blocking element being configured to prevent water from leaking from the compensation vessel via the ventilation component.   
     
     
         2 . The compensation assembly according to  claim 1 , wherein the ventilation component has a sealing unit including a sealing element and a floatable ball that is movable between a first position in which the ball is seated on the sealing element and a second position in which the ball is spaced from the sealing element, wherein, when the compensation vessel is full, an opening between the ventilation component and the compensation vessel is sealed by the sealing unit so that overflowing of the compensation vessel is prevented. 
     
     
         3 . The compensation assembly according to  claim 2 , wherein the sealing unit further has a vertical guide for guiding the ball onto the sealing element and/or away from it. 
     
     
         4 . The compensation assembly according to  claim 1 , wherein the compensation vessel comprises a lower compensation vessel half-shell and an upper compensation vessel half-shell, wherein the lower compensation vessel half-shell has a coupling portion for coupling to the water tank of the hot water storage tank and the upper compensation vessel half-shell is designed for coupling to a cold water feed line. 
     
     
         5 . The compensation assembly according to  claim 4 , wherein a receiving portion for an emptying component is integrated into the lower and/or the upper compensation vessel half-shells and formed between the connected compensation vessel half-shells. 
     
     
         6 . The compensation assembly according to  claim 4 , wherein the upper compensation vessel half-shell and the lower compensation vessel half-shell each have a circumferential friction-welded edge for making a vibration-friction-welded connection between the upper compensation vessel half-shell and the lower compensation vessel half-shell. 
     
     
         7 . The compensation assembly according to  claim 1 , further comprising an emptying component including a nozzle of a water jet pump configured to drain compensation water from the compensation vessel. 
     
     
         8 . The compensation assembly according to  claim 7 , wherein the nozzle is a venturi nozzle having a parabolically tapered cross-sectional contour. 
     
     
         9 . The compensation assembly according to  claim 7 , wherein a material of the nozzle is different from a material of the compensation vessel. 
     
     
         10 . The compensation assembly according to  claim 7 , wherein the compensation vessel comprises a lower compensation vessel half-shell and an upper compensation vessel half-shell and the venturi nozzle is designed to be integrated into the upper compensation vessel half-shell or the lower compensation vessel half-shell as one piece. 
     
     
         11 . The compensation assembly according to  claim 1 , wherein the compensation vessel is formed of demoldable plastic parts. 
     
     
         12 . The compensation assembly according to  claim 1 , wherein the compensation vessel comprises a lower compensation vessel half-shell and an upper compensation vessel half-shell and the ventilation component is arranged at the upper compensation vessel half-shell. 
     
     
         13 . (canceled) 
     
     
         14 . The compensation assembly according to  claim 1 , wherein the ventilation component has a sealing unit configured to seal an opening between the ventilation component and the compensation vessel when the compensation vessel is full. 
     
     
         15 . The compensation assembly according to  claim 14 , wherein the sealing unit includes a ball having a density that is less than water. 
     
     
         16 . The compensation assembly according to  claim 7 , wherein the nozzle is formed of brass or bronze. 
     
     
         17 . The compensation assembly according to  claim 7 , wherein the nozzle has a parabolically tapered cross-sectional contour. 
     
     
         18 . A hot water tank comprising:
 a storage tank;   a cold water feed connectable to a water supply network;   a hot water drain configured to provide hot water to a fitting connectable thereto; and   a compensation assembly including:
 a compensation vessel, and 
 a ventilation component, wherein the ventilation component allows air to be exchanged between the compensation vessel and the atmosphere, the ventilation component including a blocking element configured to prevent water from leaking from the compensation vessel via the ventilation component. 
   
     
     
         19 . The hot water tank according to  claim 18 , wherein the ventilation component has a sealing unit including a sealing element and a floatable ball that is movable between a first position in which the ball is seated on the sealing element and a second position in which the ball is spaced from the sealing element, wherein, when the compensation vessel is full, an opening between the ventilation component and the compensation vessel is sealed by the sealing unit so that overflowing of the compensation vessel is prevented. 
     
     
         20 . The hot water tank according to  claim 18  further comprising an emptying component including a venturi nozzle configured to drain compensation water from the compensation vessel to the storage tank.