DK9500146U4

DK9500146U4 - Gas heater

Info

Publication number: DK9500146U4
Application number: DK9500146U
Authority: DK
Inventors: Zimsen Leif Hammer
Original assignee: Belo Aps
Priority date: 1995-04-12
Filing date: 1995-04-12
Publication date: 1996-07-12

Description

DK 95 00146 U4DK 95 00146 U4

Forklaring af frembringelsenExplanation of the production

Frembringelsen angår et rumopvarmningsaggregat baseret på gas og af den i kravets indledning angivne art. Sådanne rumopvarmningsaggregater anvendes til opvarmning af mindre rum, kabinetter, garager m.v., og rumopvarmningsaggregatet ifølge frembringelsen er fortrinsvis udviklet til opvarmning af såkaldte gasreguleringsstationer eller såkaldte gasmålingsstationer eller kombinationer heraf. Sådanne stationer anvendes i forbindelse med distribution af gas, f.eks. bygas, naturgas og lignende. Stationen anbringes ofte steder, hvor der ikke er adgang til elektricitet, hvorfor rumopvarmningsaggregatet skal kunne fungere uden strømforsyning og i øvrigt skal være udformet således, at det kan fungere i meget lang tid uden tilsyn, f.eks. kun med ét årligt tilsyn eller eventuelt med endnu længere intervaller mellem tilsynene.The production relates to a space heater based on gas and of the kind specified in the preamble of the claim. Such space heaters are used for heating smaller rooms, cabinets, garages, etc., and the space heater according to the invention is preferably designed for heating so-called gas control stations or so-called gas metering stations or combinations thereof. Such stations are used in connection with gas distribution, e.g. city gas, natural gas and the like. The station is often placed in places where there is no access to electricity, so the space heater must be able to operate without power supply and, moreover, must be designed so that it can operate for a very long time without supervision, e.g. only with one annual supervision or possibly with even longer intervals between the supervision.

I det rum, der opvarmes af aggregatet ifølge frembringelsen, kan være anbragt forskelligt udstyr, der anvendes i forbindelse med distribution af gas, f.eks. trykreguleringsventiler, gasmålere osv.In the space heated by the aggregate according to the production, various equipment used in connection with gas distribution, e.g. pressure control valves, gas meters, etc.

Stationen omfatter sædvanligvis et helt lukket rum, og aggregatet skal sikre, at rummet er opvarmet til en ønsket temperatur, f.eks. 45°C, helt uanset klimaet uden for rummet.The station usually comprises a fully enclosed space, and the unit must ensure that the space is heated to a desired temperature, e.g. 45 ° C, regardless of the outside climate.

Ved at udforme rumopvarmningsaggregatet ifølge frembringelsen som anført i kravet opnår man meget stor sikkerhed for, at reguleringen altid fungerer tilstrækkeligt. De to seriekoblede reguleringsorganer vil sædvanligvis ikke være indstillet til samme reguleringstemperatur, men således, at det ene er indstillet til en højere temperatur end det andet. Dette medfører, at reguleringen ved normal drift vil blive foretaget af det ene reguleringsorgan, mens det andet 2 DK 95 00146 U4 står stand-by og automatisk træder ;L funktion, hvis førstnævnte skulle svigte. De seriekoblede reguleringisorganer kan også være indrettet således, at det ene reguleringsorgan regulerer gastilførslen ud fra måling af forbrændings temperaturen, d.v.s. røggastemperaturen, og det andet ud fra måling af rumtemperaturen.By designing the space heater according to the invention as stated in the claim, you obtain very high assurance that the regulation always works adequately. The two series-coupled control means will usually not be set to the same control temperature, but so that one is set to a higher temperature than the other. This means that in normal operation the control will be made by one regulator, while the other 2 is standby and automatically enters; L function if the former should fail. The series-coupled regulating means may also be arranged such that one regulating means regulates the gas supply from the measurement of the combustion temperature, i.e. the flue gas temperature, and the second from the room temperature measurement.

TegningenThe drawing

Frembringelsen forklares herefter nærmere under henvisning til tegningen, idet fig. 1 viser princippet i rumopvarmningsaggregatet ifølge frembringelsen, fig. 2 viser mere detaljeret selve opvarmningsaggregatet, fig. 3 viser et snit i retningen III-III i fig. 2, og fig. 4 viser et snit IV-IV i fig. 2.BRIEF DESCRIPTION OF THE DRAWINGS The invention is explained in greater detail below with reference to the drawing, in which 1 shows the principle of the space heater according to the invention; FIG. 2 shows in more detail the heater itself; FIG. 3 shows a section in the direction III-III of FIG. 2, and FIG. 4 shows a section IV-IV in FIG. 2nd

Beskrivelse af udførelseseksemplet på tegningen På fig. 1 ses et -rum 1 i form af en gasmåle- og reguleringsstation, idet gassen fremføres i en hovedledning 2, f.eks. under højt tryk, eksempelvis 75 bar, hvorfra gassen via et afgreningsrør føres til stationen 1, hvorfra gassen via en stikledning 3 føres til én eller flere forbrugere under et passende, reduceret tryk.Description of the embodiment of the drawing In fig. 1, a space 1 is seen in the form of a gas measuring and control station, the gas being fed into a main conduit 2, e.g. under high pressure, for example 75 bar, from which the gas is fed to the station 1 via a branch pipe, from which the gas is supplied to one or more consumers under an appropriate reduced pressure via a plug line 3.

Stationen 1 omfatter et aflukket, termisk isoleret, f.eks. kasseformet rum, hvori der er anbragt en enhed 4, som f.eks. rummer en afspærringsventil, filtre til rensning af gassen, trykreduktionsventil m.v., inden gassen via ledningen 6 føres til en forbrugsmåler 5, der måler forbruget i stikledningen 3. Det gastekniske udstyr 4, 5 skal for at 3 DK 95 00146 U4 fungere korrekt have en passende temperatur, fortrinsvis en positiv temperatur, hvilket skal ses i forhold til, at gassen fremføres med jordtemperaturen, som i visse egne kan være lav, og idet der kan ske temperatur fald på grund af 5 trykreduktion m.v.The station 1 comprises a closed, thermally insulated, e.g. box-shaped space in which is arranged a unit 4, e.g. contains a shut-off valve, filters for cleaning the gas, pressure reducing valve etc., before passing the gas via the conduit 6 to a consumption meter 5, which measures the consumption in the plug conduit 3. The gas technical equipment 4, 5 must in order to function correctly 3 temperature, preferably a positive temperature, which must be seen in relation to the gas being fed at the soil temperature, which in some regions may be low, and as temperature drop may occur due to 5 pressure reduction, etc.

Det er derfor nødvendigt, at det afspærrede rum 1 er opvarmet, hvilket sker ved afbrænding af gas i et brændkammer 12, hvortil gassen føres via en ledning 7, en enhed 8, der 10 eksempelvis rummer en afspærringsventil, filtre for rens ning af gassen, eventuelt en trykreduktionsventil m.v., hvorefter gassen via ledningen 17 føres gennem to seriekoblede temperaturregulatorer 9, 10, inden gassen via ledningen 11 tilføres brændkammeret 12. Oven på brændkammeret 12 15 er ved gevindsamlinger 18 påskruet to koncentriske rør 13, 14, hvilke rør af tætnet er ført gennem rummets væg og afsluttes med tværrørene 19, hvorpå der er anbragt yderligere tværrør 15, 16. Tværrørene 15 er indgangsrør for forbræn dingsluft, der tilføres gasbrænderen i brændkammeret 12, og 20 forbrændingsgassen ledes ud gennem det centrale rør 14 via tværrørene 19, 16. Tværrørene 15, 16 sikrer, at vindstød, nedbør m.v. ikke kan trænge ned i rørene 13, 14 og videre ned i brændkammeret. Samtidig ses, at forbrændingsluften passerer ned langs røret 14 for forbrændingsgas således, at 25 forbrændingsluften forvarmes.Therefore, it is necessary that the confined space 1 is heated, which is done by burning gas in a combustion chamber 12, to which the gas is fed via a conduit 7, a unit 8, which contains, for example, a shut-off valve, filters for cleaning the gas, optionally a pressure reducing valve, etc., whereby the gas via the conduit 17 is passed through two series-coupled temperature controllers 9, 10 before the gas is supplied via the conduit 11 to the combustion chamber 12. At the top of the combustion chamber 12 15, two threaded pipes 13, 14 of sealed tubes are turned on passed through the wall of the room and terminated with the transverse pipes 19, on which further transverse pipes 15, 16. The transverse pipes 15 are combustion air inlet pipes supplied to the gas burner in the combustion chamber 12, and the combustion gas is discharged through the central pipe 14 via the transverse pipes 19, 16. The cross-pipes 15, 16 ensure that gusts, rainfall, etc. can not penetrate pipes 13, 14 and further down into the combustion chamber. At the same time, it is seen that the combustion air passes down along the combustion gas tube 14 so that the combustion air is preheated.

På fig. 2-4 ses selve opvarmningsaggregatet mere detaljeret. De to temperaturreguleringsanordninger 9, 10 er f.eks. almindelig kendt gasreguleringsudstyr af fabrikatet Honey-30 well og sælges under betegnelsen Spaceheater Gas Control V5474 eller tilsvarende reguleringsudstyr, der er indrettet til at regulere gasbrændere uden at kræve tilførsel af elektricitet udefra. Oven på hver regulator findes to betjeningsorganer, ét betjeningsorgan 20 for temperaturindstilling og ét betjeningsorgan 21 bl.a. til betjening af gnisttænderen m.v., der omtales nedenfor. På tegningen er anvendt samme betegnelser som på fig. 1, og pilene viser 35 4 DK 95 00146 U4 gasstrømmens retning. Fra de to temperaturreguleringsorga-ner udtages mindre gasledninger 24, der fremføres til en tændenhed 27, der omfatter et permanent tændt vågeblus 25. Vågeblusset tændes med en gnist-elektrodeenhed 23, der via ledninger 22 kan betjenes fra temperaturregulatorerne 9, 10. Denne gnisttændingsfunktion anvendes kun ved tænding af vågeblusset 25 ved opstart. Vågeblusset er herefter tændt permanent og bruges til at tænde og slukke for hovedgasbrænderne 26, hvoraf der på tegningen er vist tre gasbrændere. Brændkammeret 12 er aflukket nedadtil af en tyk bundplade 28, som bærer hovedgasbrænderne 26 samt tændenhe-den 27.In FIG. 2-4, the heater itself is shown in more detail. The two temperature control devices 9, 10 are e.g. commonly known gas control equipment of the Honey-30 well and sold under the designation Spaceheater Gas Control V5474 or equivalent control equipment designed to regulate gas burners without requiring outside electricity supply. On top of each regulator are two controls, one temperature control 20 and one control 21, e.g. for operation of the spark lighter, etc., mentioned below. The same designations as in FIG. 1 and the arrows indicate the direction of the gas flow. From the two temperature control means, smaller gas lines 24 are withdrawn which are fed to an ignition unit 27 which comprises a permanently switched on sleep switch 25. The wake is switched on with a spark electrode unit 23 which can be operated via lines 22 from the temperature controllers 9, 10. This spark ignition function is used. only by turning on the wake-up light 25 at start-up. The wake flame is then permanently switched on and is used to switch on and off the main gas burners 26, of which three gas burners are shown in the drawing. The combustion chamber 12 is closed downwardly by a thick base plate 28 which carries the main gas burners 26 and the ignition unit 27.

På tegningen er desuden vist, at hver temperaturregulator 9 har en rumtemperaturføler 35 anbragt et passende sted i rummet 1 og at hver temperaturregulator omfatter en for-brændingsgastemperaturmåler 36 anbragt på udgangsrøret eller skorstenen 14 for forbrændingsgassen.In the drawing, it is further shown that each temperature controller 9 has a room temperature sensor 35 disposed at a suitable location in room 1 and that each temperature controller comprises a combustion gas temperature meter 36 located on the exhaust pipe or chimney 14 for the combustion gas.

For at sikre en god udnyttelse af varmen fra den gas, der afbrændes i hovedgasbrænderne 26, omfatter brændkammeret en brændkammervæg 29, som afgrænser den del af brændkammeret, hvori gassen afbrændes, og som foroven omfatter et antal varmeoptagelsesfinner 32 og som udvendigt omfatter et antal varmeafgivelsesfinner 31. Delene i og omkring brændkammeret er fortrinsvis udformet som en enhed ved sammensvejsning af kraftige enkeltdele med stor godstykkelse og et godt varme-ledende materiale, f.eks. i SS-316 rustfrit stål, aluminium eller en anden passende metal legering, som både er godt varmeledende og som er korrosionsfast over for gasflammerne og miljøet iøvrigt. Eventuelt kan brændkammeret vaare fremstillet ved støbning.In order to ensure good utilization of the heat from the gas burned in the main gas burner 26, the combustion chamber comprises a combustion chamber wall 29 which defines the part of the combustion chamber in which the gas is burned, which comprises at the top a number of heat absorption fins 32 and which externally comprises a number of heat release fins. 31. The parts in and around the combustion chamber are preferably formed as a unit by welding strong individual parts with large thickness and a good heat-conducting material, e.g. in SS-316 stainless steel, aluminum or another suitable metal alloy, which is both heat conductive and corrosion resistant to the gas flames and the environment. Optionally, the combustion chamber may be made by casting.

Claims

GB 95 00146 U4 Gas heater based on gas and for heating a room (1), e.g. a gas control metering station, and comprising a combustion chamber (12) with means (13) for discharging combustion gas and means (9, 10) for regulating the combustion, said means comprising a gas line (17, 11) for supplying gas to a burner unit in the combustion chamber and the control is based on the measurement of the room temperature, which is new in that the gas supply line (17, 11) for supplying gas to the burner unit comprises at least two series-coupled control means (9, 10) for the gas burners.