Device and method for recovering heat from the environment

Abstract

The invention relates to a device for recovering heat from the environment, for use in underground and underwater construction, wherein in a sheet piling wall ( 2 ) anchored in a subgrade and made of sheet piling wall elements ( 4 ) that can be locked to each other, the sheet piling wall elements ( 4 ) comprise at least one closed hollow space ( 6 ) designed as a heat tube ( 8 ), wherein the heat tube ( 8 ) transfers heat energy drawn from the water or the ground via the sheet piling wall elements ( 4 ) to a heat pump ( 16 ) via a heat exchanger ( 12 ) at the one end ( 14 ) of the heat tube ( 8 ).

1 . A device for recovering heat from the environment for use in civil and hydraulic engineering, comprising:
 wherein a sheet piling wall anchored in a subgrade and made of sheet piling wall elements that can be locked to each other, the sheet piling wall elements further comprises at least one closed hollow space designed as a heat pipe, the heat pipe transferring thermal energy drawn from the water or the ground via the sheet piling wall elements to a heat pump via a heat exchanger at the one end of the heat pipe.   
     
     
         2 . The device of  claim 1 , wherein at least one vertically extending heat pipe is arranged on a double-walled sheet piling wall element. 
     
     
         3 . The device of  claim 1 , wherein the at least one vertically extending hollow space is formed by a pipe profile fastened to the sheet piling wall element and closed at the ends. 
     
     
         4 . The device of  claim 1 , wherein the at least one heat pipe contains a heat transport medium suited for the temperature range from −10° Centigrade to +40° Centigrade. 
     
     
         5 . The device of  claim 1 , wherein the at least one heat pipe is a CO s  heat pipe. 
     
     
         6 . The device of  claim 1 , wherein the piping wall elements have profiles that comprise wall sections extending in parallel with each other in the longitudinal direction and being angularly offset with respect to each other, wherein, to form the heat pipes, the hollow spaces closed at the ends are formed by wall elements extending in parallel with said wall sections in the longitudinal direction thereof, said wall elements bridging at least two wall sections. 
     
     
         7 . The device of  claim 1 , wherein, in the portion of the sheet piling wall located in water, the heat pipes are arranged on the side averted from the water. 
     
     
         8 . A method for recovering heat from the environment for use in civil and hydraulic engineering,
 wherein adapting a sheet piling wall comprising a plurality of sheet piling wall elements to be locked with each other is driven into the ground,   forming at least one heat pipe in the sheet piling wall or is fastened thereto in a thermally conductive manner, and wherein the thermal energy extracted by the heat pipe from water or the ground via the sheet piling wall elements is transferred to a heat pump via a heat exchanger at one end of the heat pipe.   
     
     
         9 . The method of  claim 8 , wherein vertically extending hollow spaces are formed at the sheet piling wall elements, which accommodate heat pipes or form a heat pipe. 
     
     
         10 . The method of  claim 8 , wherein CO 2  heat pipes are used as the heat pipes. 
     
     
         11 . A sheet piling wall elements of a sheet piling wall comprising:
 a plurality of sheet piling wall elements adapted to be locked with each other, to be used in civil and hydraulic engineering for receiving at least one heat pipe and for recovering thermal heat from water or the ground over the entire surface of the sheet piling wall elements.