Heating device

Abstract

Generally described, a heating device, or heating tube, includes a combustive fluid inlet, respectively a combustible fluid inlet, is connected to a combustion head via a first pipe, respectively a second pipe, the second pipe being housed at least partially in the first pipe. In this heating device, the combustion head is distant of at least 50 cm from the combustible fluid inlet, which enables to create a “cold zone” between the two. The first and the second pipes enable to bring the combustible fluid and the combustive fluid separately to the combustion head, even if the latter is remote by at least 50 cm from the combustible fluid and combustive fluid inlets.

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 
     
         1 . A heating device, comprising:
 a combustive fluid inlet;   a combustible fluid inlet;   a combustion head configured to emit a flame;   a first fluid connection comprising a first pipe and connected fluidically to the combustive fluid inlet and to the combustion head;   a second fluid connection comprising a second pipe connected fluidically to the combustible fluid inlet and to the combustion head, at least a section of the second pipe being housed in the first pipe, said section being flexible;   a heat-emitting tube having a first part in fluid communication with the first fluid connection and configured to receive the combustion head and a flame emitted by the combustion head;   a fluid outlet connected fluidically to the first part of the heat-emitting tube via a second part of the heat-emitting tube; and   means for moving fluid configured to create a movement of fluid between:
 the combustive fluid inlet and the combustion head via the first fluid connection; and 
 the first part of the heat-emitting tube and the second part of the heat-emitting tube, 
   wherein the combustion head and the combustible fluid inlet are separated by a distance of at least 50 cm, and wherein that the combustion head and the combustive fluid inlet are separated by a distance of at least 50 cm, in such a way that the distance between the combustion head and the fluid inlets creates a non-heated zone.   
     
     
         2 . The heating device of  claim 1 , wherein the combustion head comprises peripheral combustive fluid openings, a Venturi tube, an ionization electrode and an ignition electrode, the peripheral combustive fluid openings being located between the second pipe and the Venturi tube. 
     
     
         3 . The heating device of  claim 1 , wherein the combustion head and the combustible fluid inlet are separated by a distance of at least 2 m. 
     
     
         4 . The heating device of  claim 1 , wherein the combustion head and the combustive fluid inlet are separated by a distance of at least 2 m. 
     
     
         5 . The heating device of  claim 1 , wherein the combustion head is mechanically coupled to the first part of the heat-emitting tube by coupling elements fixed to the combustion head and slidably arranged along one or more of an inner surface of the second pipe and an inner surface of the heat-emitting tube. 
     
     
         6 . The heating device of  claim 1 , wherein the heat-emitting tube comprises a section configured for disassembly, said section configured for disassembly being fixed by flanges or straps to the remainder of the heat-emitting tube. 
     
     
         7 . The heating device of  claim 1 , wherein the second pipe is configured to support a temperature of at least 300° C. 
     
     
         8 . The heating device of  claim 1 , wherein the second pipe comprises a stainless steel. 
     
     
         9 . The heating device of  claim 1 , wherein the second pipe is made of 316Ti steel. 
     
     
         10 . The heating device of  claim 1 , wherein the first pipe is rigid. 
     
     
         11 . The heating device of  claim 10 , wherein the first pipe has an angle, and wherein the second pipe is in a flexible material and is bent inside the angle of the first pipe. 
     
     
         12 . An earth decontamination installation comprising a mass of earth and a heating device, the heating device comprising:
 a combustive fluid inlet;   a combustible fluid inlet;   a combustion head configured to emit a flame;   a first fluid connection comprising a first pipe and connected fluidically to the combustive fluid inlet and to the combustion head;   a second fluid connection comprising a second pipe connected fluidically to the combustible fluid inlet and to the combustion head, at least a section of the second pipe being housed in the first pipe, said section being flexible;   a heat-emitting tube having a first part in fluid communication with the first fluid connection and configured to receive the combustion head and a flame emitted by the combustion head;   a fluid outlet connected fluidically to the first part of the heat-emitting tube via a second part of the heat-emitting tube; and   means for moving fluid configured to create a movement of fluid between:
 the combustive fluid inlet and the combustion head via the first fluid connection; and 
 the first part of the heat-emitting tube and the second part of the heat-emitting tube, 
   wherein the combustive fluid inlet, the combustible fluid inlet and the fluid outlet are located outside the mass of earth, and at least part of the heat-emitting tube is located within the mass of earth,   wherein the combustion head and the combustible fluid inlet are separated by a distance of at least 50 cm, and wherein that the combustion head and the combustive fluid inlet are separated by a distance of at least 50 cm.   
     
     
         13 . The earth decontamination installation of  claim 12 , wherein the heat-emitting tube is bent inside the mass of earth. 
     
     
         14 . The earth decontamination installation of  claim 12 , wherein a vertical offset separates the heat-emitting tube and the combustive fluid inlet, said vertical offset being accommodated by an angle in the first pipe and a bent in the second pipe. 
     
     
         15 . The earth decontamination installation of  claim 14 , wherein the vertical offset is at least 0.5 meters. 
     
     
         16 . The earth decontamination installation of  claim 12 , wherein at least part of the combustion head is located within the mass of earth. 
     
     
         17 . The earth decontamination installation of  claim 12 , wherein the first pipe has two bends, and wherein the second pipe is in a flexible material and is bent within the bends of the first pipe. 
     
     
         18 . An earth decontamination installation comprising a mass of earth and a plurality of heating devices, each of the heating devices comprising:
 a combustive fluid inlet;   a combustible fluid inlet;   a combustion head configured to emit a flame;   a first fluid connection comprising a first pipe and connected fluidically to the combustive fluid inlet and to the combustion head;   a second fluid connection comprising a second pipe connected fluidically to the combustible fluid inlet and to the combustion head, at least a section of the second pipe being housed in the first pipe, said section being flexible;   a heat-emitting tube having a first part in fluid communication with the first fluid connection and configured to receive the combustion head and a flame emitted by the combustion head;   a fluid outlet connected fluidically to the first part of the heat-emitting tube via a second part of the heat-emitting tube; and   means for moving fluid configured to create a movement of fluid between:
 the combustive fluid inlet and the combustion head via the first fluid connection; and 
 the first part of the heat-emitting tube and the second part of the heat-emitting tube, 
   wherein, for each of the heating devices, the combustive fluid inlet, the combustible fluid inlet and the fluid outlet are located outside the mass of earth, and at least part of the heat-emitting tube is located within the mass of earth,   wherein, for each of the heating devices, the combustion head and the combustible fluid inlet are separated by a distance of at least 50 cm, and wherein that the combustion head and the combustive fluid inlet are separated by a distance of at least 50 cm.   
     
     
         19 . The earth decontamination installation of  claim 18 , wherein the heat-emitting tubes of the various heating devices are at different height, and the combustible fluid inlets of the various heating devices are at the same height. 
     
     
         20 . The earth decontamination installation of  claim 18 , wherein the plurality of heating devices comprises at least three heating devices of which the emitting tubes are distributed over the length, the width and/or the height of the mass of earth.