DE202017104879U1 - Heating system with jet lines - Google Patents

Abstract

A radiant heating system comprising: - a burner (2) equipped with a combustion chamber (8) capable of combustion products at high temperature via the combustion of a mixture comprising at least one air flow (A) and at least one gas flow (G) produce; - At least one beam line (5) which carries a heat transfer medium (9) and is connected to said burner (2) to receive in its interior said combustion products at high temperature, which are suitable, at least in part, said heat transfer medium (9 ) to build; - at least one blower (6) connected to said jet pipe (5) for conveying said heat transfer medium (9) under reduced pressure along a suction section (5 ') connected to said burner (2); - a smoke extractor (11) connected to said jet pipe (5) after said fan (6) for extracting at least a part (10) of said heat transfer medium (9); characterized in that said plant comprises heat storage of sensible and latent heat (12) impinging on said flue (11) and comprising: - a flue gas flue (11) via a first inlet (14) and a first one Outlet (15) connected housing (13), over which it is crossed by said part (10) of said heat transfer medium (9); - A recovery circuit (28) in which a secondary medium (16) at low temperature than that of the heat transfer medium (9) circulates and which is connected to the housing (13) via a second inlet opening (17) and a second outlet opening (18) , said part (10) of said heat transfer medium (9) and said secondary medium (16) in said housing (13) undergoing heat exchange by direct contact with cooling of said part (10) of said heat transfer medium (9) and heating of said secondary medium (16); said second outlet opening (18) being disposed substantially at the bottom of said housing (13) to convey the heated secondary medium (16) and the condensate of said portion (10) of the heat transfer medium (9).

Description

application

This invention relates to a heating system with jet lines according to the preamble of the independent claim.

The installation in question is advantageously intended to be used in industrial or commercial environments, in particular to heat large buildings both for extensive heating and for heating parts of the building and advantageously heat energy for the preparation in other rooms to supply to be used for heating hot water.

State of the art

As is known, for years there have been various heating systems on the market with jet lines to be laid somewhat below the ceiling of the buildings to be heated in order to direct heat by radiation to the objects or persons underneath, preferably with heat radiation in the infrared range. These plants of known type usually comprise open loop jet lines, referred to in the jargon of the sector as "radiant tubes", connected to a burner in which an oxidizing mixture of air and gas is burned to produce products of combustion be fed via a fan after the jet lines with negative pressure in a circuit, to be then discharged via a flue directly into the open. Advantageously, the fan may be placed in front of the burner so that the combustion products circulate under pressure in the jet lines.

Other plants of known type usually comprise "closed circuit" jet lines, which in the jargon of the sector are referred to as "radiation bands" connected to a burner in which a fire-promoting mixture consisting of air and gas is burned.

This mixture produces a high temperature combustion product flow which is directed into the closed loop of the jet lines.

The abovementioned system circuit advantageously meets a fan positioned in the immediate vicinity of the burner in order to generate a negative pressure throughout the circuit which is also suitable for maintaining plant safety.

The combustion gas flow generated by the burner mixes in the closed circuit with a flow of already introduced and circulating combustion products and heats it, so that a heat transfer medium is formed for heating, which is rolled by the action of the fan with negative pressure.

More specifically, the burners used in these plants are usually equipped with a combustion chamber in which burns the combustible mixture consisting of air and gas on a torch head and generates a heat transfer medium from flue gases circulating inside the jet lines together with the previously generated circulating flue gases becomes. The colder recovered flue gases mix with the warmer flue gases produced by the burner and are co-circulated by the blower which provides vacuum throughout the circuit. Therefore, the blower circulates in the circuit a partially from new, very warm combustion gases produced by the burner and partly from colder recovered combustion gases, which have already partially replaced their heat with the jet lines during their Umwalzens existing heat transfer rate.

To compensate for the masses involved, a portion of the recirculated flue gases is discharged via a corresponding exhaust duct (chimney) in the environment outside the building, which is usually located immediately after the fan above the burner.

The system designed in this way is particularly safe, since the burner is normally located outside the building to be heated and the jet lines, as stated, have negative pressure in order to avoid any possibility of escape of the flue gases into the environment to be heated.

It is for example from the patent WO 2011036645 It is known that these radiant heaters are provided with heat recovery devices which act on the chimney to discharge the flue gases at lower temperatures, as in normal boilers, thus recovering some of the latent heat from the condensation.

With these heat recovery devices, the need for minimum heat output and efficiency demands investment that can be very costly and ineffective from the point of view of overall cost (investment, operation and maintenance).

During circulation in the closed circuit with negative pressure, the heat transfer medium involuntarily mixes with air coming from the outside environment, which occurs via the mechanical connections between the components forming the radiation circuit (curves, connecting devices, expansions, etc.) and a reduction the percentage of carbon dioxide (CO ₂ ) in the circulated heat transfer medium with consequent reduction in the condensation temperature (tau) of the flue gases on its exhaust duct with the latter being at the end of the blast circuit between the fan and the burner.

In order to recover some of the latent heat contained in the flue gases, a low condensing temperature of the flue gases necessarily entails the use of large heat exchanging surface recovering devices and low working temperatures of the secondary heat transfer medium to which the recovered heat is discharged from the flue gases discharged Heat is not always easy to use because of its low temperature.

Presentation of the invention

In this connection, therefore, the main object of this invention is to overcome the problems of the above-described prior art and to present a radiant belt heating system capable of recovering the sensible and latent heat of the combustion products discharged from the chimney to improve in terms of technical and economic feasibility and their handling.

Another object of this invention is to present a radiant band heater system that is completely safe in operation.

Brief description of the drawings

The technical characteristics of the invention can be clearly seen from the content of the patent claims below, in accordance with the stated aim, and the advantages thereof will be more clearly apparent from the detailed description of some embodiments according to the invention, which is illustrated by way of non-limitative example in the accompanying drawings become, in which:

1 a plan of the heating system with jet lines and closed circuit, in which the application of a heat storage of the sensible and latent heat from flue gases / water with direct adiabatic exchange is provided on a designated flue gas outlet, which is the subject of this invention.

2 a variant of the system 1 in which the reuse of the secondary medium has been provided in a recovery circuit equipped with a specific heat exchange channel and bleed valve.

3 a variant of the system 2 is, in which the heat exchange channel consists of an exchanger which is suitable to exchange heat via a blower directly in the air and / or to exchange heat with a hydraulic circuit.

4 a variant of the system 1 in which the reuse of the secondary medium has been provided in a level-limiting collection tank adapted to exchange heat with a hydraulic circuit, which in turn is provided with an end portion for directly exchanging heat in the air via a blower.

5 a variant of the system 4 is, in which the hydraulic circuit is alternatively equipped with an end portion for exchanging heat with a consumer hydraulic circuit.

6 a variant of the system 4 is, in which the hydraulic circuit is equipped with both an end portion for exchanging heat directly in the air via a blower and with an end portion for exchanging heat with a consumer hydraulic circuit.

7 a variant of the system 4 is, in which the beam line is an open circle with a jet pipe.

8th a variant of the system 1 which comprises one or more plants in which the recovery circuits of the individual plants are connected in parallel and with a first common manifold for receiving the heated secondary medium and the condensate of the heat transfer medium and with a second common manifold for redistributing the cooled secondary medium to the are equipped.

Detailed description of an example of the preferred embodiment

With reference to the drawings in the annex, a radiant belt heating system has been found to be consistent with that preferred by this invention Embodiment in its entirety with 1 designated.

This is primarily intended for use in room air conditioning by radiation in industrial and commercial environments.

The heating system 1 , which is the subject of this invention, includes one with a combustion chamber 8th equipped burner 2 suitable for generating combustion products at high temperature by combustion of a mixture comprising at least one air flow A and at least one gas flow G.

More precisely, the burner can 2 one-stage, two-stage or modulating type and is suitable for burning both gaseous and liquid fuel.

The system also includes at least one beamline 5 which defines the closed loop of a radiation band or the open circle of a jet pipe, as described in more detail below.

In any case, the beamline 5 capable of a heat transfer medium 9 and she is at the burner 2 connected to receive in their interior the combustion products at high temperature, which are suitable, at least in part, said heat transfer medium 9 to build.

The system also includes in a known per se with the beam line 5 connected fan 6 to the pressurized heat transfer medium 9 along one with the burner 2 connected suction section 5 ' to transport.

The system also includes a smoke outlet 11 , after the blower 6 to the beamline 5 is connected to at least a part 10 the heat transfer medium 9 dissipate.

More specifically, as already known and will be explained later, the combustion products in the case of the open loop of the beamline 5 a system with jet pipes in full the heat transfer medium, while in the case of a system with radiation bands in a circulated in a closed loop of the beam line heat transfer medium are taken.

Advantageously, in the case of a closed loop with radiation bands (eg simplified in the FIGS 1 . 2 . 3 . 4 . 5 . 6 shown) the above-mentioned blower 6 inserted into the closed circuit in a position upstream of the intake section 5 ' for connection to the burner 2 and downstream a pressurized section 5 '' that with the burner 2 connects, defines.

Only in the case of the closed circuit of a system with radiation bands, is the beam line 5 U-shaped and has one from the burner 2 remote end connection section. The circle is therefore thanks to the printing section 5 '' closed.

The flue gas outlet 11 meets the printing section 5 '' of the closed circle 5 to a part 10 the heat transfer medium 9 essentially corresponding to that which is reintroduced with the warm flue gases generated by the combustion. In contrast, in the case of a system with beam lines (such as in 7 shown) the line 5 , as mentioned above, an open circuit with a jet line, in which the blower 6 directly in the exit to the flue gas outlet 11 connected. In particular, in the case of a system with jet lines, the part corresponds 10 of the above the flue gas outlet 11 discharged heat transfer medium 9 essentially the entire flow of the heat transfer medium 9 that the beamline 5 flowed through.

According to the idea underlying this invention, the system comprises a heat storage of the sensible and latent heat 12 that with the smoke flue 11 connected is. In addition, according to the invention, the system includes 1 one with the flue gas outlet 11 via a first entrance opening 14 and a first exit opening 15 connected housing 13 about it from the part 10 the heat transfer medium 9 is crossed. It is also a recovery circle 28 provided in which a secondary medium 16 at a lower temperature than that of the heat transfer medium 9 circulated and this is to the housing 13 via a second inlet opening 17 and a second exit opening 18 connected. The part 10 of (consisting of the combustion gases) heat transfer medium 9 and the secondary medium 16 condition in this way within the housing 13 an adiabatic heat exchange by direct contact with cooling of the part 10 the heat transfer medium 9 and heating the secondary medium 16 ,

Advantageously, in the heat exchanger housing 13 from part 10 the heat transfer medium 9 via the secondary medium 16 both sensible heat and latent heat can be recovered since, as is well known, sensible heat can be recovered by cooling the combustion gases and in which also the water vapor contained in the flue gases is condensed, it is possible to recover the latent heat.

In order to better understand this other behavior of flue gas condensation, it is appropriate to examine as an example the following combustion reaction of methane CH4: CH4 + 2O2 + 7,52N2 + e / 100 * (2O2 + 7,52N2) ---- → ---- → CO2 + 2H2O + 7,52N2 + e / 100 · (2O2 + 7,52N2) where: "e" is the excess air fraction.

For stoichiometric combustion (e = 0) one obtains: 1 m3 (CH4) + 9,52 m3 (air) → 1 m3 (CO2) + 2 m3 (H2O) + 7,52 m3 (N2).

Therefore: generates 1 m3N (CH4): 2 m3N (H2O).

Since the molecular weight of water is 2 + 16 = 18, it follows:
2000 / 22.4 = 89.3 moles; 89.3 mol. 18 = 1607 g of water which releases the combustion in the form of superheated steam.

The condensation of 1607 g of steam gives:
1.607 kg steam / m3N (CH4) · 2.51 MJ / kg steam = 4.04 MJ / m3N (CH4)

This amount represents a percentage of 4.04 / 35.9 = 11.2% of the lower calorific value of methane, which translates into practically equal increases in efficiency.

The condensation is never complete, but can reach relatively high percentages depending on the generator characteristics and its operating conditions (excess air and temperature of the recycled water, which cause the condensation temperature of the flue gases or better "peat temperature").

The dew temperature is the temperature at which condensation of the water vapor contained in a combustion gas mixture begins. This temperature is important to promote condensation inside the heat recovery devices from the combustion gases. In the technical literature, there are graphs that allow the calculation of the temerature depending on the type of combustion used, depending on the combustion characteristics (CO2 content). For example, in the case of combustion of methane CH4 for a percentage of carbon dioxide CO2 in the flue gases in the amount of 8%, a tau temperature of about 50 ° C. If the percentage of carbon dioxide in the flue gases is 4%, the dewing temperature drops by approx. 37 ° C.

• – tritt der Teil 10 des Wärmeträgermediums 9 aus einer ersten Eintrittsöffnung 14 in das Gehäuse 13 bei einer Temperatur zwischen durchschnittlich 130°C und 180°C ein und hat eine durchschnittliche Zusammensetzung von Kohlendioxid CO2 zwischen 4% und 8%.
• – mit CO2 bei 5% zum Beispiel beläuft sich im Fall einer Verbrennung mit Methan CH4 die Tautemperatur des Rauchgases auf 42,5°C.
• – möchte man daher die Kondensation des im Teil 10 des Wärmeträgermediums 9 enthaltenen Wasserdampfs erzielen, muss die Temperatur des sekundären Mediums 16, das in das Gehäuse 13 über die zweite Eintrittsöffnung 17 eintritt und hier direkt auf den Teil 10 des Wärmeträgermediums 9 trifft, notwendigerweise unter diesem Wert der Tautemperatur liegen;
• – vorteilhafterweise ist, je niedriger die Temperatur des sekundären Mediums 16 bei diesem Tautemperaturwert, desto höher der Teil des Wasserdampfkondensats des Teils 10 des Wärmeträgermediums 9, der in dem Wärmeträgermedium 16' gesammelt wird.
• – nach dem Grundsatz des adiabatischen Wärmeaustauschs folgt daraus:
• • Teil 10 des Wärmeträgermediums 9, das in direkten Kontakt mit dem Medium 16 gerät, das sich auf einer erheblich niedrigeren Temperatur befindet, gibt einen Teil seiner Wärme außer durch direkten Kontakt auch durch die Verdunstungswirkung eines Teils des sekundären Mediums 16 ab; so kommt es zu einem Absinken der Temperatur des Teils 10 des Wärmeträgermediums 9 und in jedem Fall zu einer Erhöhung seiner spezifischen sowie seiner relativen Feuchtigkeit.
• • vorteilhafterweise erwärmt sich während des Prozesses des adiabatischen Wärmeaustauschs in dem Gehäuse 13 das sekundäre Medium 16 und nimmt das Wasserdampfkondensat des Teils 10 des Wärmeträgermediums 9 mit sich, das in dem sekundären Medium 16' eingeschlossen wird.

More specifically, with reference to the embodiment of 1 :

• - the part occurs 10 the heat transfer medium 9 from a first entrance opening 14 in the case 13 at a temperature between on average 130 ° C and 180 ° C and has an average composition of carbon dioxide CO2 between 4% and 8%.
• For example, with CO2 at 5%, in the case of combustion with methane CH4, the dew temperature of the flue gas is 42.5 ° C.
• - So you want the condensation of the part 10 the heat transfer medium 9 The temperature of the secondary medium contained in the product must be 16 that in the case 13 over the second inlet 17 enter and here directly on the part 10 the heat transfer medium 9 necessarily, are below this value of the dew temperature;
• - Advantageously, the lower the temperature of the secondary medium 16 at this taut temperature value, the higher the part of the water vapor condensate of the part 10 the heat transfer medium 9 which is in the heat transfer medium 16 ' is collected.
• - according to the principle of adiabatic heat exchange, it follows:
• • part 10 the heat transfer medium 9 that is in direct contact with the medium 16 The device, which is at a considerably lower temperature, gives some of its heat, except through direct contact, also through the evaporation effect of a part of the secondary medium 16 from; this leads to a drop in the temperature of the part 10 the heat transfer medium 9 and in any case to an increase in its specific and its relative humidity.
• Advantageously heats up during the process of adiabatic heat exchange in the housing 13 the secondary medium 16 and takes the water vapor condensate of the part 10 the heat transfer medium 9 with himself, in the secondary medium 16 ' is included.

Also according to this invention, the second outlet opening 18 essentially on the bottom of the case 13 arranged to the heated secondary medium 16 ' and the condensate of the part 10 the heat transfer medium 9 to transport.

In line with a in 2 illustrated preferred embodiment of the invention comprises the recovery circuit 28 a heat exchange channel 40 which is capable of heat by the cooling of the secondary medium 16 ' leave it from one to the second outlet of the housing 13 connected inlet section 41 to one to the second inlet opening 17 of housing 13 connected outlet section 42 crossed.

Advantageously, the recovery loop proves 28 as with a vent valve 23 in the section after the second outlet opening 18 of the housing 13 equipped at a greater height of the exit section 42 of the heat exchange channel 40 is positioned. The purpose of the valve is in the recovery circuit 28 always the same volume of the secondary medium 16 to preserve that in the case 13 generated and in the secondary medium 16 ' conducted condensate of the part 10 the heat transfer medium 9 in the recovery circle 28 accumulates and especially in the housing 13 and thus impair the plant operation.

Advantageously, the recovery loop proves 28 as with one in the section between the vent valve 23 and the entry section 41 of the heat exchange channel 40 positioned pump 27 equipped at a lower altitude than this latter entry section 41 is arranged.

For the correct operation of the pump 27 and therefore the entire plant must have the volume of the recovery loop 28 between the vent valve 23 and the pump 27 a circumference having a head and a volume of the secondary medium 16 ' guaranteed, with those in normal operation, the cavitation of the pump 27 is prevented.

Advantageously, in accordance with the preferred embodiment of in 2 illustrated invention when the pump 27 there is no stop of the secondary medium after a system stop, no circulation of the secondary medium 16 in the recovery circle 28 before and the entire volume of the secondary medium 16 flows and is located only in the part of the recovery circle 28 that is below the level of the vent valve 23 including the heat exchange channel 40 , Consequently, there is no secondary medium at this plant shutdown 16 inside the case 13 including the part of the recovery circle 28 above the height of the vent valve 23 , Preferably, the housing 13 including the recovery circle 28 above the height of the vent valve 23 be positioned outside of the room and thus the problems of the system in connection with the possible freezing of the secondary medium 16 Avoid that could occur should the housing 13 including the recovery circle 28 above the height of the vent valve 23 to be outdoors. Because of the direct adiabatic heat exchange between the part 10 the heat transfer medium 9 and the secondary medium 16 in the case 13 it is not possible in the secondary medium 16 Use antifreeze components such as glycol or similar substances, since the latter to undesirable releases into the atmosphere from the heat transfer medium 10 ' could result in the form of water vapor particles. Preferably, the part of the recovery cycle 28 that is below the level of the vent valve 23 located, including the heat exchange channel 40 , and during the plant shutdown of the secondary medium 16 is flowed through, housed in an environment or in any case be put into action by the problems of freezing of the located during the plant shutdown secondary medium 16 be avoided as the secondary medium 16 , as already mentioned, can not contain antifreeze ingredients.

In line with a in 3 illustrated preferred embodiment of this invention meets the heat exchange channel 40 on an end portion for heat dissipation 43 capable of giving off heat to one in front of the end portion for heat dissipation 43 with the help of a blower that controls the airflow 37 first on the heat exchange channel 40 and then directed in the extracted environment to be heated, removed airflow 37 to warm up. Preferably, the average temperature of the heat to be heated and before the end portion for heat dissipation 43 removed air flow 37 below the average temperature of the secondary medium 16 ' that the heat exchange channel 40 flows through.

Advantageously, the end portion for heat dissipation 43 suitable, via an exchanger 34 that the heat from an intermediate medium 44 which in turn receives from the heat exchange channel 40 is heated, heat to a consumer hydraulic circuit 31 leave, with the latter channel as the exchanger 34 into the intermediate medium 44 is dipped.

In line with a in 4 illustrated preferred embodiment of the invention comprises the recovery cycle 28 a collection tank 20 which is capable of heat by the cooling of the secondary medium 16 ' leave it from one to the second outlet 18 of the housing 13 connected inlet section 41 to one to the second inlet opening 17 of the housing 13 connected outlet section 42 crossed. Quite similar to the already in 3 illustrated preferred embodiment of this invention is described, the collection tank 20 advantageously with a vent valve 23 between the entry section 41 and the exit section 42 of the recovery circle 28 fitted; this vent valve 23 conditionally in the collection tank 20 a level limit 25 at a height that guarantees that the secondary medium 16 ' in the collection tank 20 a correct and effective function of the pump 27 guaranteed, more precisely, in the recovery circle 28 the secondary medium 16 from the exit section 42 of the collection tank 20 to the second entrance opening 17 of the housing 13 to circulate; Advantageously, it is the purpose of the vent valve 23 to avoid that in the case 13 generated and via the secondary medium 16 ' in the collection tank 20 conducted condensate of the part 10 the heat transfer medium 9 in the recovery circle 28 accumulates, especially in the housing 13 , and thus impair the system function.

Advantageously, the bleed valve requires 23 a level limit 25 at a height that guarantees that the secondary medium 16 ' in the collection tank 20 Effectively heat to one in the collection tank 20 existing heat exchanger 34 can deliver.

In line with a likewise in 4 illustrated preferred embodiment of this invention is the collection tank 20 also with an entry port 29 and an exit port 30 for one in the secondary medium 16 ' of the collection tank 20 immersed heat exchanger 34 fitted. The heat exchanger 34 proves to be a consumer hydraulic circuit 31 connected by a heat medium 32 flows through, which serves as a means to get out of the collection tank 20 recovered heat to the end section for heat dissipation 33 to transfer, in turn, with a hydraulic to the consumer hydraulic circuit 31 connected heat exchanger 35 Is provided.

Advantageously, the end portion for heat dissipation 33 capable of giving off heat to one in front of the end portion for heat dissipation 33 with a fan that controls the airflow 37 first on the of the heat medium 32 flowed through the heat exchanger 35 and then the airflow 37 directed into the environment to be heated, removed airflow 37 to warm up. Preferably, the average temperature of the heat to be heated and before the end portion for heat dissipation 33 removed air flow 37 below the average temperature of the heat medium 32 that the heat exchanger 35 flows through.

In line with a in 5 illustrated preferred embodiment of this invention is the end portion for heat dissipation 33 capable of giving off heat to a stream of air 36 to warm in the lower part 39 the end section for heat dissipation 33 enters and warms from the upper part 38 the end section for heat dissipation 33 exiting, wherein the heating by that of the heat medium 32 flowed through the heat exchanger 35 given heat is conditional.

Preferably, the average temperature of the heat to be heated and in the end portion for heat dissipation 33 existing water flow 36 below the average temperature of the heat medium 32 that the heat exchanger 35 flows through. Advantageously, in the end section for heat dissipation 33 except from the circle 31 supplied and from the heat medium 32 flowed through the heat exchanger 35 other heat circuits also interact, such as heat circuits powered by solar panels, storage circuits powered by heat storage, heat pumps powered by heat pumps, and / or heat exchangers powered by docking systems.

In accordance with the in 6 illustrated preferred embodiment of this invention and based on the previously described and with the embodiments of 4 and 5 Shown is the end section for heat dissipation 33 capable of dissipating heat to both at the same time before the end portion for heat dissipation 33 by means of a blower that controls the airflow 37 on the of the heat medium 32 ' flowed through the heat exchanger 35 and then directed to the environment to be heated, removed airflow 37 as well as a water stream 36 in the lower part 39 the end section for heat dissipation 33 enters and from the upper part 38 the end section for heat dissipation 33 exits to heat, this heating by that of the heat medium 32 '' flowed through the heat exchanger 35 given heat is conditional.

In line with a in 7 illustrated preferred embodiment of this invention is in the beam line 5 around an open circuit of a radiant tube. This beamline 5 is at the burner 2 connected to receive in their interior the combustion products at high temperature, which are suitable, the heat transfer medium 9 to build. Should the system also be one with the beamline 5 connected fan 6 include to the heat transfer medium 9 at negative pressure along one with the burner 2 connected suction section 5 ' to transport is the named fan 6 directly in the exit to a smoke outlet 11 connected. The after the blower 6 to the beamline 5 connected called flue 11 is from the part 10 the heat transfer medium 9 flows through. Advantageously, the system also includes one with the beamline 5 connected, in front of the burner 2 positioned and directly connected to this blower 6 to the heat transfer medium 9 at negative pressure along one with the burner 2 connected pressure line 5 ' to carry, taking this route 5 ' directly in the exit a smoke outlet 11 connected. The one after the blower 6 to the beamline 5 connected called flue 11 is from the part 10 the heat transfer medium 9 flows through.

Advantageously, when the beamline 5 consists of an open circle of a jet pipe, the plant suitable, all different in the 1 . 2 . 3 . 4 . 5 and 6 to illustrate and in detail set forth preferred embodiments of this invention.

In line with a in 8th illustrated preferred embodiment of this invention is in the system 1 to a heating system with blast lines, which includes two or more heating systems with blasting, each plant in line with the various in the 1 . 2 . 3 . 4 . 5 . 6 and 7 illustrated and set forth in detail above preferred embodiments. Advantageously, the system 1 characterized in that the recovery circles 28 the individual plants with a first common collector 45 are equipped, to which the second outlet openings 18 the housing 13 the individual heating systems with jet lines are hydraulically connected, said first common collector 45 suitable, the heated secondary medium 16 ' and the condensates of the parts 10 the heat transfer media 9 record; Advantageously, the plant 1 characterized in that the recovery circles 28 the individual plants with a second common, hydraulically to the second inlet openings 17 the housing 13 the collector connected to the individual systems 46 are equipped to the cooled secondary medium 16 to distribute again to the mentioned individual heating systems with jet lines.

QUOTES INCLUDE IN THE DESCRIPTION

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Cited patent literature

• WO 2011036645 [0011]

Claims (8)

A jet-line heating system comprising: - one with a combustion chamber ( 8th ) equipped burner ( 2 ) capable of producing combustion products at a high temperature via the combustion of a mixture comprising at least one air flow rate (A) and at least one gas flow rate (G); - at least one beamline ( 5 ), which is a heat transfer medium ( 9 ) and to the said burner ( 2 ) is connected to receive in its interior said combustion products at high temperature, which are suitable, at least in part, said heat transfer medium ( 9 ) to build; - at least one with said beamline ( 5 ) connected fan ( 6 ) to the said heat transfer medium ( 9 ) with negative pressure along one with said burner ( 2 ) connected to the suction section ( 5 ' ) to transport; - one to said beamline ( 5 ) after said blower ( 6 ) connected smoke outlet ( 11 ) to at least a part ( 10 ) of said heat transfer medium ( 9 ) deduct; characterized in that said plant comprises a heat storage of sensible and latent heat ( 12 ), which is on the said flue ( 11 ) and comprising: - one with said flue gas outlet ( 11 ) via a first entrance opening ( 14 ) and a first exit opening ( 15 ) connected housing ( 13 ) on which it refers 10 ) of said heat transfer medium ( 9 ) is crossed; - a recovery circuit ( 28 ), in which a secondary medium ( 16 ) at a lower temperature than that of the heat transfer medium ( 9 ) circulates and to the housing ( 13 ) via a second inlet opening ( 17 ) and a second exit opening ( 18 ) connected. the said part ( 10 ) of said heat transfer medium ( 9 ) and said secondary medium ( 16 ) in said housing ( 13 ) heat exchange by direct contact with cooling of said part ( 10 ) of said heat transfer medium ( 9 ) and heating said secondary medium ( 16 ) bring about; wherein said second exit port ( 18 ) substantially on the bottom of said housing ( 13 ) is arranged around the heated secondary medium ( 16 ) and the condensate of said part ( 10 ) of the heat transfer medium ( 9 ) to transport. Heating system with jet lines according to claim 1, characterized in that it is in the said at least one beam line ( 5 ) is a closed circle with radiation bands; wherein said fan ( 6 ) is connected to said closed circuit and in front of said suction section ( 5 ' ) for connection to said burner ( 2 ) and then a printing section ( 5 '' ) for connection to said burner ( 2 ) Are defined; wherein said flue ( 11 ) to the said printing section ( 5 '' ) of said closed circle meets the said part ( 10 ) of said heat transfer medium ( 9 ) deduct. Radiant heating system according to claim 1, characterized in that said recovery circuit ( 28 ) in a section extending from an entry section ( 41 ) connected to the second outlet ( 18 ) of the housing ( 13 ) is connected to an exit section ( 42 ) connected to the second inlet ( 17 ) of the same housing ( 13 ), a heat exchange channel ( 40 ) at least one exchanger ( 43 ) Are defined; this recovery circle ( 28 ) with a vent valve ( 23 ) at a greater height than the exit section ( 42 ) of said heat exchange channel ( 40 ) Is provided. Radiator with jet lines according to claim 3, characterized in that said heat exchange channel ( 40 ) with a fill level limit ( 25 ) at the level of said venting valve ( 23 ) collecting tank ( 20 ). Radiator with jet lines according to claim 3, characterized in that said exchanger ( 43 ) Heat directly in air or heat with a consumer hydraulic circuit ( 31 ) via an exchanger ( 34 ) exchanges. Radiator with jet lines according to claim 4, characterized in that said collecting tank ( 20 ) with an inlet connection ( 29 ) and an exit port ( 30 ) for one in the secondary medium ( 16 ) of the collection tank ( 20 ) submerged heat exchanger ( 34 ) Is provided; wherein said heat exchanger ( 34 ) to one of a heat medium ( 32 ) as a means of transferring the heat from the collection tank ( 20 ) to an end portion for heat dissipation ( 33 ) flowed through consumer hydraulic circuit ( 31 ) connected. Radiant jet heating system according to any one of claims 1, 3, 4, 5 and 6, characterized in that said at least one beamline ( 5 ) is an open circle of a jet pipe in which said blower ( 6 ) directly in the outlet to the mentioned flue ( 11 ) connected. A blast line heating system comprising two or more blast line heating systems according to one or more of the preceding claims, characterized in that the recovery circles ( 28 ) of the individual heating systems are equipped with jet lines with the following: one to the second outlet openings ( 18 ) of the housing ( 13 ) of the individual heating systems with beam lines connected first common collector ( 45 ) to the heated secondary medium ( 16 ) and the condensates of said parts ( 10 ) of said heat transfer media ( 9 ); and with one to the second inlet openings ( 17 ) of the housing ( 13 ) of the individual heating systems with jet lines connected to the second common collector ( 46 ) to the said secondary medium ( 16 ) to distribute back to the aforementioned heating systems.

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