Method for providing heat

Abstract

A method and a related device for providing heat for heating buildings and optionally for heating tap water via a solar collector, in which the solar collector is filled and permeated with a thermal carrier medium in the event of incident solar radiation, in order to heat the thermal carrier medium, and in which the solar collector is otherwise emptied, the thermal carrier medium being collected in a storage reservoir.

1 . A method for providing heat for heating buildings and optionally for heating tap water via a solar collector, in which the solar collector is filled and permeated with a thermal carrier medium in the event of incident solar radiation, in order to heat the thermal carrier medium, and in which the solar collector is otherwise emptied, the thermal carrier medium being collected in a storage reservoir, and the thermal carrier medium being kept under elevated pressure in the storage reservoir and in the solar collector, wherein the storage reservoir is partially filled with thermal carrier medium and partially filled with gas in all operating states, and the thermal carrier medium is removed directly from the storage reservoir to heat the building. 
     
     
         2 . The method according to  claim 1 , wherein the thermal carrier medium provided in the storage reservoir has a free surface. 
     
     
         3 . The method according to according to  claim 1 , wherein a temperature stratification is maintained in the storage reservoir. 
     
     
         4 . The method according to according to  claim 1 , wherein tap water is heated, in that it is conducted through a heat exchanger in the storage reservoir. 
     
     
         5 . The method according to according to  claim 1 , wherein multiple solar collectors and/or storage reservoirs are connected in parallel. 
     
     
         6 . The method according to according to  claim 1 , wherein air is used as the gas. 
     
     
         7 . The method according to according to  claim 1 , wherein the pressure in the system made of storage reservoir, solar collector, and heating system is kept at a value between 2 and 5 bar. 
     
     
         8 . A device for providing heat for heating buildings comprising: a solar collector, a storage reservoir, and a heating system, the solar collector being provided with an apparatus for operational emptying, wherein the system made of solar collector, storage reservoir, and heating system is implemented as a closed system fillable under pressure with a single thermal carrier medium, and that the storage reservoir is fillable with gas in addition to the thermal carrier medium. 
     
     
         9 . The device according to  claim 8 , wherein the storage reservoir has a gas space in its upper section, which is implemented directly above a surface of the thermal carrier medium. 
     
     
         10 . The device according to according to  claim 8 , wherein multiple storage reservoirs are connected in parallel. 
     
     
         11 . The device according to according to  claim 8 , wherein a supply line to the solar collector is provided, which originates from the lower area of the storage reservoir and in which a delivery pump is provided, and a return line is provided, which opens into an upper area of the storage reservoir, which is located above a maximum fill limit for the thermal carrier medium. 
     
     
         12 . The device according to according to  claim 8 , wherein a heat exchanger for heating tap water is arranged in the storage reservoir. 
     
     
         13 . The device according to according to  claim 8 , wherein means for maintaining a temperature stratification are arranged in the storage reservoir. 
     
     
         14 . The device according to  claim 13 , wherein the means for maintaining a temperature stratification is implemented as a stratification pipe.