Boiler Condensation Module

Abstract

The invention concerns a boiler condensation module, characterised in that it comprises a water/fume heat exchanger (E) and a closed circuit compression thermodynamic frigorific apparatus, said module ( 2 ) being communicated with a boiler ( 1 ) intercepting the flow of the fumes and the flow of the water, in order to subtract sensitive heat and vaporisation latent heat to the fumes of the boiler to yield the same as heat to the system water thus improving the combustion efficiency.

1 . Boiler condensation module comprising a water/fume heat exchanger (F) and a closed circuit compression thermodynamic frigorific apparatus (M), said closed circuit compression thermodynamic frigorific apparatus comprising a fume refrigerant (or evaporator) heat exchanger ( 4 ) ands a water-refrigerant heat exchanger (F), said module being communicated with a boiler ( 1 ) intercepting the flow of the fumes and the flow of the water, in order to subtract sensitive heat and vaporisation latent heat to the fumes of the boiler to yield the same as heat to the system water thus improving the combustion efficiency. 
   
   
       2 . Boiler condensation module according to  claim 1 , characterised in that said heat exchanger is of the water/fume plate or laminar unit type. 
   
   
       3 . Boiler condensation module according to  claim 1  characterised in that said frigorific apparatus is a compression thermodynamic frigorific apparatus. 
   
   
       4 . Boiler condensation module according to  claim 3 , characterised in that said frigorific apparatus further comprises a refrigerant compressor, an expansion or lamination member ( 4 ) and a control electric-electronic system. 
   
   
       5 . Boiler condensation module according to  claim 1 , characterised in that said closed circuit compression thermodynamic frigorific apparatus provides an evaporation temperature included between 12° C. and 20° C. and a condensation temperature variable between 50° and 95° C. 
   
   
       6 . Boiler condensation module according to  claim 1 , characterised in that said frigorigen machine comprises one or more water-refrigerant heat exchanger of the plate and/or laminar unit and/or tube bundle type; one or more fume-refrigerant heat exchangers of the plate and/or laminar unit and/or tube bundle type; one or more compressors, even of the inverter type, suitable to compress R12, R134, R404, R407, R410, R125 refrigerant fluids and the like as heat; one or more lamination members of the capillary and/or thermostatic expansion valve type, with or without pressure equalizer and/or calibrated choke; metallic tubes connecting the various components. 
   
   
       7 . Boiler condensation module according to  claim 1 , characterised in that parts that can be directly in touch with the fume condensate are comprised of material resisting to the acid corrosion due to the same condensate, e.g. AISI 316L stainless steel, or other suitable materials. 
   
   
       8 . Boiler condensation module according to  claim 1 , characterised in that one or more water/fume plate or laminar unit type heat exchangers are provided, with or without the thermal exchange with carburant air. 
   
   
       9 . Boiler condensation module, according to  claim 1 , characterised in that said water-fume heat exchanger and said fume-refrigerant heat exchanger (evaporator for the frigorific circuit) are installed inside a metallic room within which fumes circulate, realised in such a way that condensate produced by the two heat exchangers can easily outflow outside said metallic room, avoiding that a mixing of air, environment, water and fumes occurs. 
   
   
       10 . Boiler condensation module according to  claim 1 , characterized in that Furthermore, protection and control fittings are provided, that are usually used in frigorific circuits such as: pressure switches, thermostats, flow meters, manometers, thermometers, transducers, fume extractors, passage indicators, fans, liquid injection systems, liquid receivers and dividers, filters, electric/electronic boards, pressure equalizers and reducers, interception and adjustment valves, mixing valves, condensate exhaust siphons. 
   
   
       11 . Boiler condensation module according to  claim 1 , characterized in that Particularly, fluid R134A is employed as a refrigerant fluid, or, as an alternative, various refrigerant fluids can be employed (R404, R407, R410, 125%) circulating within the frigorific circuit. 
   
   
       12 . Boiler condensation module according to  claim 1 , characterized in that a volumetric or centrifugal compressor of the hermetic, semi-hermetic or open type is provided. 
   
   
       13 . Boiler condensation module according to  claim 1 , characterized in that another fluid or a mixture comprising glycol or another anti-freezing liquid is used instead of water as thermal vector of the system. 
   
   
       14 . Boiler condensation module according to  claim 1 , characterized in that transfer (transmission) of the heat recovered from the fumes occurs to the fluid of another system not directly connected with the system of the main water, for example for heating the sanitary heat water and/or for feeding another heating system and/or for directly heating air. 
   
   
       15 . Boiler condensation module according to  claim 1 , characterized in that counter current flow heat exchangers are used. 
   
   
       16 . (canceled)