DK160644B - CERAMIC FLAMMERS FOR INDUSTRIAL BURNERS - Google Patents
CERAMIC FLAMMERS FOR INDUSTRIAL BURNERS Download PDFInfo
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- DK160644B DK160644B DK562485A DK562485A DK160644B DK 160644 B DK160644 B DK 160644B DK 562485 A DK562485 A DK 562485A DK 562485 A DK562485 A DK 562485A DK 160644 B DK160644 B DK 160644B
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- flame tube
- flame
- pipe
- tube
- ceramic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C3/00—Combustion apparatus characterised by the shape of the combustion chamber
- F23C3/002—Combustion apparatus characterised by the shape of the combustion chamber the chamber having an elongated tubular form, e.g. for a radiant tube
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
- Combustion Of Fluid Fuel (AREA)
- Chimneys And Flues (AREA)
- Tunnel Furnaces (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Pre-Mixing And Non-Premixing Gas Burner (AREA)
Abstract
Description
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Opfindelsen angår et keramisk flammerør til en industribrænders kappestrålevarmerør, der i det mindste delvis består af enkelte keramiske rørstykker, der ved enderne er formsluttende forbundne med hinanden, og ved deres yderside over ribbe- eller knast-5 formede afstandsdele understøttes radialt mod et kapperør, der omgiver flammerøret.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a ceramic flame tube for an industrial burner casing radiator heater tube, which is at least partially comprised of single ceramic tubular pieces, which are at the ends formally connected to each other, and at their exterior over rib or cam spaced apart portions radially supported against a casing tube which surround the flame tube.
Kappestrålevarmerør med keramiske flammerør har den fordel, at de, uden at deres levetid forringes, kan optage de høje termiske belastninger, der især forekommer ved tænd-slukdrift af 10 brænderen. Ved en udførelse som keramikrør, der strækker sig gennemgående over hele flammerørets længde (GB-PS nr. 716 579), er de imidlertid udsat for stor risiko for brud, der især ved vandret indbyggede kappestrålevarmerør skyldes, at det af metal støbte kapperør, der med afstand omgiver flammerøret, under de optrædende 15 temperaturpåvirkninger ikke blot tildeles længdeændringer, men også en vis udbøjning, som det ud i eet stykke udformede forholdsvis stive keramiske flammerør ikke kan følge.Capsule radiator heater pipes with ceramic flame pipes have the advantage that without sacrificing their service life they can absorb the high thermal stresses that occur especially when the burner is switched on. However, in an embodiment such as ceramic pipes extending throughout the length of the flame pipe (GB-PS no. 716 579), they are exposed to a high risk of fracture, especially due to horizontally built-in casing radiator heater pipes, which are made of metal molded casing pipes, which with distance, the flame tube surrounds, under the temperature effects occurring, not only longitudinal changes are granted, but also a certain deflection which the relatively rigid ceramic flame tube formed in one piece cannot follow.
For at give det keramiske flammerør en vis elasticitet, er det derfor også kendt (GB-PS nr. 564.523, US-PS nr. 2.478.732) at 20 sammensætte flammerøret af enkelte runde cylindriske rørstykker eller ringafsnit, der er sammenføjede koaksialt med deres ender stødende stump mod hinanden. Til opnåelse af en gensidig føring af rørstykkerne ved deres forbindelsessteder er rørstykkernes endeflader udformede som not-federforbindelser. Derved fås imidlertid ved hvert 25 forbindelsessted en i et vinkelret på flammerørets akse forløbende plan beliggende ringspalte, der udmunder radialt i forhold til den udvendige omkredsflade. Dersom en sådan ringspalte mellem to mod hinanden stødende rørstykker åbnes delvis på grund af forskellige længdeændringer af metal kapperøret og det keramiske flammerør eller 30 på grund af en udbøjning af kapperøret, kan varme flammegasser udtræde fra det indre af flammerøret og støde radialt mod metal kapperøret. Kapperøret, der ved dets inderside bestryges af de gennem ringrummet mellem flammerøret og kapperøret strømmende (køligere) udstødsgasser overbelastes termisk ved sådanne lokale overhedninger 35 og bliver derved enten hurtigt ødelagt eller får en kortere levetid.Therefore, to give the ceramic flame tube some elasticity, it is also known (GB-PS No. 564,523, US-PS No. 2,478,732) to assemble the flame tube of single round cylindrical tubes or ring sections joined coaxially with their ends abruptly blunt against each other. In order to obtain a mutual guide of the pipe pieces at their connection points, the end faces of the pipe pieces are designed as non-federal joints. However, at each connection point there is obtained a ring gap extending perpendicular to the axis of the flame tube, which opens radially with respect to the outer circumferential surface. If such a ring gap between two opposing pipe pieces is partially opened due to different length changes of the metal casing pipe and the ceramic flame pipe or due to a bending of the casing pipe, hot flame gases may escape from the interior of the flame pipe and radially impact the metal casing pipe. The cap tube, which is coated on its inside by the (cooler) exhaust gases flowing through the annulus between the flame tube and the cap tube, are thermally overloaded by such local superheats 35 and are thereby either rapidly destroyed or have a shorter service life.
Da de forholdsvis tykvæggede kendte keramiske rørstykker eller ringdele under påvirkningen af de forskelligt høje temperaturer ved deres inderside og yderside har vist sig at være tilbøjelige til at revne, er det også kendt at sammensætte ringdelene af enkelte sektor- 2Since the relatively thick-walled known ceramic tubes or ring parts, under the influence of the various high temperatures at their inner and outer sides, have been found to be prone to cracking, it is also known to assemble the ring parts of individual sectors.
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formet udformede delstykker, der ved stødstederne har formsluttende forbindelsesanordninger (DE-PS nr. 1.551.762). Dermed kunne der ganske vist fremstilles et meget fleksibelt keramisk flammerør, der var sammensat af forholdsvis små og dermed også over for store tempera-5 turgradienter ufølsomme dele, men det er her en ulempe, at de enkelte delstykker skal forbindes med hinanden ved hjælp af en keramisk kit for at give hele flammerøret den nødvendige stabilitet. Dette medfører et ekstra arbejde. Endvidere skal hele flammerøret udskiftes ved beskadigelse af et keramisk delstykke, fordi en udskiftning af 10 det fastkittede beskadigede delstykke ikke er mulig.shaped shaped pieces having at the impact points molding connectors (DE-PS No. 1,551,762). Thus, while a very flexible ceramic flame tube could be produced which was composed of relatively small and thus also insensitive parts to large temperature gradients, it is a disadvantage here that the individual parts must be connected to each other by means of a ceramic kit to give the entire flame tube the necessary stability. This entails extra work. Furthermore, the entire flame pipe must be replaced by damage to a ceramic part because a replacement of the stuck-up damaged part is not possible.
Formålet med opfindelsen er derfor at tilvejebringe et modstandsdygtigt bøjeligt keramisk flammerør, der trods en enkel konstruktion eliminerer forekomsten af lokale overhedningssteder på det omgivende metal kapperør og er nemt at montere og reparere.The object of the invention is therefore to provide a resilient bendable ceramic flame tube which, despite its simple construction, eliminates the presence of local superheat locations on the surrounding metal casing pipe and is easy to assemble and repair.
15 Denne opgave løses ifølge opfindelsen ved, at de tyndvæg gede rørstykker hver ved deres ene ende er udformede som en muffe og med spillerum er stukket ind i hinanden, og at en keramisk dækring med spillerum er sat på flammerøret ved hver muffeforbindelsessted og i akseretningen strækker sig over en del af det tilhørende 20 rørstykke og i det mindste delvis dækker den tilhørende muffe.This problem is solved according to the invention in that the thin-walled pieces of pipe are each formed at one end as a sleeve and are spaced into each other, and that a ceramic cover ring with clearance is mounted on the flame pipe at each socket connection point and extends in the axis direction. cover over a portion of the associated pipe piece and at least partially cover the associated sleeve.
Rørstykkernes muffeforbindelse tillader en vis aksial indbyrdes bevægelighed af rørstykkerne ved forbindelsesstederne, uden at rørstykkerne derved skilles fra hinanden. Den mellem en muffes indervæg og ydervæggen af det deri indstukne rørstykke dannede 25 ringspalte udmunder ved flammerørets yderside i flammerørets akseretning. Denne spalte er desuden i retningen udad dækket af dækringen, der sammen med muffen og den del af rørstykket, der er stukket ind i muffen, begrænser den i flammerørets akseretning forløbende ringspalte. Derved er den ved forbindelsesstederne mellem rørstyk-30 kerne, der med spillerum er stukket ind i hinanden, uundgåelige spalte udformet som en labyrint, der frembyder en stor strømningsmodstand for de varme flammegasser i det indre af flammerøret. Eventuelt udtrædende flammegasser kan kun udtræde i flammerørets akseretning, hvilket vil sige, at de kun bestryger den udvendige 35 omkredsflade af dele af de keramiske rørstykker, hvilket ikke kan medføre beskadigelser. Der kan således ikke ved forbindelsesstederne udtræde radialt udad fra flammerørets yderside rettede flammegasstrømme, der kan støde mod metal kapperøret og medføre lokale overhedninger af dette.The sleeve connection of the tubes allows for some axial movement of the tubes at the connection points, without thereby separating the tubes. The annular gap formed between the inner wall of a sleeve and the outer wall of the pipe piece incorporated therein opens at the outside of the flame tube in the axis of the flame tube. This slot is furthermore covered in the outward direction by the cover ring which, together with the sleeve and the part of the pipe piece inserted into the sleeve, limits the ring gap extending in the direction of the flame tube. Thereby, the unavoidable gap at the connection points between the pipe cores, interspersed with each other, is designed as a maze which presents a large flow resistance of the hot flame gases in the interior of the flame pipe. Any emitting flame gases can only exit in the axis of the flame tube, which means that they only coat the outer circumferential surface of portions of the ceramic pipe pieces, which cannot cause damage. Thus, at the connection points radially outward from the outside of the flame tube no flame gas streams which can abut the metal casing pipe and cause local superheats thereof can not escape.
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Flammerørets rørstykker og dækringe er kun skudt ind over hinanden, uden at der hertil anvendes faste kitforbindelser. Derved opnås den fordel, at bekadigede dele uden videre kan udskiftes, uden at hele flammerøret skal erstattes.The flame-tube pipes and cover rings are only pushed into each other without the use of fixed kit joints. This provides the advantage that damaged parts can be replaced without the need to replace the entire flame pipe.
5 Til forøgelse af den tættende virkning ved rørstykkernes forbindelsessteder kan det være fordelagtigt, dersom dækringen ifølge opfindelsen strækker sig i akseretningen ud over muffen. Endvidere er dækringen ifølge en foretrukken udførelsesform for opfindelsen formsluttende fikseret på flammerøret i akseretningen, hvilket dels 10 letter monteringen og dels forhindrer en utilsigtet forskydning af dækringen på flammerøret. Denne fiksering kan ifølge opfindelsen opnås ved, at hvert rørstykke ved dets modsat muffen beliggende ende har et ringbryst, på hvilket dækringen er aksialt understøttet.To increase the sealing effect at the connection points of the pipe pieces, it may be advantageous if the cover ring according to the invention extends in the axis direction beyond the socket. Furthermore, according to a preferred embodiment of the invention, the cover ring is formally fixed to the flame tube in the axis direction, which partly facilitates mounting and partly prevents an unintended displacement of the cover ring on the flame tube. This fixation can be achieved according to the invention in that each piece of pipe at its opposite end has a ring chest on which the cover ring is axially supported.
En fordelagtig tilslutning af flammerøret til brænderen opnås 15 ifølge opfindelsen ved, at det nærmest brænderen anbragte rørstykke med dets med muffen forsynede ende er skudt ind på et keramisk brændermundstykke, og at der i dette rørstykkes muffe er indsat en tilslutningsring, der med spillerum ligger an mod brændermundstykket. Ved hjælp af tilslutningsringen opnås en tæt tilslutning af fiam-20 merøret til det keramiske brændermundstykke, således at en tilbagebrænding af flammen mellem brændermundstykket og flammerøret er udelukket. Da brændermundstykket og flammerøret kun er stukket ind i hinanden, kan brænderen om nødvendigt ved demontering på enkel måde trækkes ud, uden at flammerøret behøver at blive taget ud af 25 kapperøret. Ifølge opfindelsen har tilslutningsringen hensigtsmæssigt afstandsdele ved sin ydre omkredsflade, således at tilslutningsringen samtidig centrerer flammerørets ved brændermundstykket beliggende ende og brændermundstykket. På lignende måde kan dækringene ifølge opfindelsen have afstandsdele ved deres ydre omkredsflade, der 30 bevirker en centrering af flammerøret i kapperøret. På denne måde opnås, at rørstykkerne med små omkostninger kan fremstilles som enkle glatvæggede dele, medens afstandsdelene på dækringene sørger for en radial centrering af flammerøret ved rørstykkernes forbindelsessteder, hvilket er fordelagtigt for flammerørets stabilitet.An advantageous connection of the flame tube to the burner is achieved according to the invention in that the tube piece closest to the burner with its end-end end is inserted into a ceramic burner nozzle and that in the sleeve of this tube piece a connecting ring is provided with clearance. toward the burner nozzle. By means of the connection ring, a close connection of the filament pipe to the ceramic burner nozzle is obtained, so that a back firing of the flame between the burner nozzle and the flame pipe is excluded. As the burner nozzle and flame tube are only inserted into one another, the burner can be easily removed by simple removal, if necessary, without the flame tube having to be removed from the sheath tube. According to the invention, the connecting ring conveniently has spacers at its outer circumferential surface so that the connecting ring simultaneously centers the end of the flame tube at the burner nozzle and the burner nozzle. Similarly, the cover rings of the invention may have spacers at their outer circumferential surface causing a centering of the flame tube in the casing tube. In this way it is achieved that the low cost pipe pieces can be manufactured as simple smooth-walled parts, while the spacer parts of the cover rings provide a radial centering of the flame pipe at the connection points of the pipe pieces, which is advantageous for the stability of the flame pipe.
35 Ifølge opfindelsen kan en med afstandsdele forsynet dæk ring, der er vendt 180° være skudt ind på flammerørets yderste rørstykke for også at centrere flammerøret ved dets længst fra brænderen beliggende ende, uden at selve flammerøret hertil skal være forsynet med egne centreringsdele eller lignende.In accordance with the invention, a spacer-covered cover ring turned 180 ° can be inserted into the outer tube of the flame tube to also center the flame tube at its furthest end from the burner, without the flame tube itself being provided with its own centering parts or the like.
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De tyndvæggede rørstykker, hvis vægtykkelse typisk ligger i en størrelsesorden pi ca. 5 mm, er fremstillede af et højt belastbart keramisk materiale og udmærker sig ved en høj modstandsdygtighed.The thin-walled tubes, the wall thickness of which is typically in the order of p. 5 mm, are made of a highly durable ceramic material and are distinguished by a high resistance.
De består fortrinsvis af ren siliciumcarbid, der har vist sig at være 5 særligt velegnet til disse formål.They preferably consist of pure silicon carbide which has been found to be particularly suitable for these purposes.
På tegningen er et udførelseseksempel på genstanden ifølge opfindelsen anskueliggjort. Tegningen viser et kappestrålevarmerør med et keramisk flammerør ifølge opfindelsen i aksialt snit i sidebillede og i delbillede.In the drawing, an embodiment of the object according to the invention is illustrated. The drawing shows a casing radiant heater tube with a ceramic flame tube according to the invention in axial section in side view and in sectional view.
10 I et kapperør 1, der består af støbestål, og er lukket ved enden 2, er et keramisk flammerør 3 koaksialt anbragt. Flammerøret og kapperøret 1 begrænser et ringrum 4, der pi i og for sig kendt måde tjener til bortledning af forbrændingsgasserne. Kapperøret 1 danner en del af en ikke nærmere vist industri brænder, af hvilken 15 kun brændermundstykket 5 er vist, der er anbragt koaksialt med kapperøret 1 og rager ind i dette og ligeledes består af keramisk materiale og har en i det væsentlige cylindrisk tilslutningsstuds 6, som flammerøret 3 er skudt ind på.10 In a casing tube 1, consisting of cast steel, and closed at the end 2, a ceramic flame tube 3 is coaxially arranged. The flame tube and the casing tube 1 limit an annulus 4 which serves in a manner known per se to discharge the combustion gases. The cap tube 1 forms part of an industrial burner which is not shown, of which 15 only the burner nozzle 5 is shown, which is arranged coaxially with the cap tube 1 and projects into it and also consists of ceramic material and has a substantially cylindrical connection nozzle 6, to which the flame tube 3 is shot.
Flammerøret 3 består af ens udformede enkelte keramiske 20 tyndvæggede rørstykker 7, der hver ved den ene ende er udformet som en muffe 8 og ved den modsat muffen 8 beliggende ende har en cylindrisk med en noget mindre udvendig diameter udformet del 9, der begrænser et ringbryst 10. Rørstykkerne 7 er fremstillede af rent siliciumcarbid. Deres vægtykkelse er typisk ca. 5 mm, og den på 25 tegningen af hensyn til tydeligheden i overdreven størrelse viste formindskelse af delen 9‘s udvendige diameter er kun ca. 0,5 - 1 mm.The flame tube 3 consists of similarly shaped single ceramic 20 thin-walled pipe pieces 7, each of which is formed at one end as a sleeve 8 and at the opposite end of the sleeve 8 has a cylindrical with a somewhat smaller outside diameter shaped part 9, which restricts a ring breast. 10. The pipe pieces 7 are made of pure silicon carbide. Their wall thickness is typically approx. 5 mm, and the reduction in the outside diameter of the portion 9's diameter for the sake of clarity in excessive size is only approx. 0.5 - 1 mm.
De udvendigt og indvendigt glatvæggede rørstykker 7 er ved hjælp af deres muffer 8 med radialt spillerum stukket ind i hinanden på den på tegningen viste måde, og det ved brænderen belig-30 gende rørstykke 7a er med sin muffeende skudt ind på brændermundstykket 5‘s tilslutningsstuds 6.The externally and internally smooth-walled pipe pieces 7 are inserted into each other by means of their radially-spaced sleeves 8 in the manner shown in the drawing, and the pipe piece 7a located at the burner is inserted with its sleeve end onto the connection nozzle 5 of the burner nozzle 5. 6th
Ved hver muffeforbindelsessted mellem rørstykkerne 7 er der med spillerum uden på flammerøret 3 anbragt en keramisk dækring 11, der i akseretningen strækker sig ind over den fra det næste 35 rørstykke 7's muffe udragende del 9 med mindre udvendig diameter og fastholdes aksialt uforskydeligt mellem det ene rørstykke 7‘s ringbryst 10 og endefladen af det tilsluttede rørstykke 7's muffe 8. Hver dækring 11 har en del 12, der· i akseretningen i det mindste delvis dækker den tilhørende muffe 8 og også kan strække sig helt ud overAt each sleeve connection point between the pipe pieces 7, with clearance outside the flame pipe 3, a ceramic cover ring 11 is extended which extends in the axial direction over the smaller outer diameter portion 9 extending from the sleeve 7 of the next pipe piece and is held axially indistinguishable between one pipe piece. 7's ring breast 10 and the end surface of the sleeve 8. The sleeve 8. Each cover ring 11 has a portion 12 which, in the axial direction, at least partially covers the associated sleeve 8 and can also extend completely beyond
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5 muffen 8, således som det er antydet ved 13.5, the sleeve 8, as indicated at 13.
Dækringene 11 bærer ved deres cylindriske omkredsflade akseparallelt rettede ribbeformede afstandsdele 14, der er ensartede fordelt over ringens omkreds, og er udformede ud i et stykke 5 med den tilhørende dækring 11. Afstandsdelene 14, der alternativt også kan være udformede som knaster eller lignende forhøjninger, rager radialt udad ind til indervæggen af kapperøret 1, på hvilken de understøtter flammerøret 3 radialt og centrerer dette.The cover rings 11 carry, at their cylindrical circumferential surface, axially parallel rib-shaped spacers 14 which are uniformly distributed over the circumference of the ring and are formed in a piece 5 with the corresponding cover ring 11. The spacers 14, which may alternatively also be formed as cams or similar elevations, projecting radially outwardly to the inner wall of the casing tube 1 on which they radially support the flame tube 3 and centering it.
Afstandsdelene 14 er radialt fordelt og udformede på en 10 sådan måde, at de frembyder en så lille strømningsmodstand for de gennem ringrummet 4 bortstrømmende udstødsgasser som muligt, men alligevel giver en effektiv mekanisk modstandsdygtig centrering af flammerøret 3.The spacers 14 are radially spaced and formed in such a way as to provide as little flow resistance to the exhaust gases flowing through the annulus 4 as possible, yet providing an efficient mechanical resilient centering of the flame tube 3.
På tegningen ses, at der ved forbindelsesstederne mellem 15 rørstykkerne 7 og ved tilslutningsstedet mellem det ved brænderen beliggende rørstykke 7a og brændermundstykket 5 kun findes ringspalter, der i det væsentlige koaksialt med flammerøret 3 indmunder i ringrummet 4. Sådanne ringspalter ses f.eks. ved 17,18. Ved hjælp af dækringene 11 opnås ved forbindelsesstederne mellem mod hinanden 20 stødende rørstykker 7 en labyrintagtig udformning af ringspalten, der udelukker radial udtræden af varme flammegasser i ringrummet 4.The drawing shows that at the connection points between the pipe pieces 7 and at the connection point between the pipe piece 7a and the burner nozzle 5 there are only ring gaps which coaxially with the flame pipe 3 open into the annulus 4. Such ring gaps can be seen, for example. at 17.18. By means of the cover rings 11, at the connection points between abutting pipe pieces 7, a maze-like design of the annular gap is obtained, which excludes radial emission of hot flame gases in the annulus 4.
Rørstykkerne 7 kan ved en udbøjning eller en længdeændring af kapperøret 1 trækkes forholdsvis langt ud i akseretningen fra hinanden ved deres forbindelsessteder, uden at den tætte for-25 bindelse mellem rørstykkerne eller flammerørets stabilitet forringes. På grund af spillerummet i mufferne 8 og i dækringene 11's område kan flammerøret 3 også følge forholdsvis store udbøjninger af kapperøret, uden at der derved optræder utilladelige spændinger i rørstykkerne eller i dækringene 11.The tubes 7 can be pulled relatively far out in the axial direction at their connection points by a bend or a length change of the casing tube 1 without their close connection between the tubes or the stability of the flame tube. Due to the clearance in the sockets 8 and in the area of the cover rings 11, the flame tube 3 can also follow relatively large deflections of the casing pipe, without thereby causing unacceptable tension in the pipe pieces or in the cover rings 11.
30 En sammenklæbning eller sammenkitning af flammerøret 3's enkelte dele er unødvendig, medmindre særlige anvendelsestilfælde gør en sådan indbyrdes fiksering af delene nødvendig.An adhesion or cleavage of the individual parts of the flame tube 3 is unnecessary unless special use cases necessitate such mutual fixing of the parts.
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Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3447603 | 1984-12-28 | ||
| DE3447603A DE3447603C2 (en) | 1984-12-28 | 1984-12-28 | Ceramic flame tube for the jacketed radiant heating tube of an industrial burner |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK562485D0 DK562485D0 (en) | 1985-12-04 |
| DK562485A DK562485A (en) | 1986-06-29 |
| DK160644B true DK160644B (en) | 1991-04-02 |
| DK160644C DK160644C (en) | 1991-09-02 |
Family
ID=6254010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK562485A DK160644C (en) | 1984-12-28 | 1985-12-04 | CERAMIC FLAMMERS FOR INDUSTRIAL BURNERS |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0191910B1 (en) |
| JP (1) | JPS61173018A (en) |
| AT (1) | ATE49650T1 (en) |
| CZ (1) | CZ278206B6 (en) |
| DE (2) | DE3447603C2 (en) |
| DK (1) | DK160644C (en) |
| HU (1) | HUT41886A (en) |
| NO (1) | NO855058L (en) |
| PL (1) | PL154687B1 (en) |
| SU (1) | SU1438627A3 (en) |
| YU (1) | YU44697B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2616518B1 (en) * | 1987-06-11 | 1990-11-30 | Gaz De France | INTERNAL CERAMIC TUBE IN PARTICULAR FOR A RADIANT TUBE WITH A RECIRCULATION GLOVE |
| FR2616520B1 (en) * | 1987-06-11 | 1989-10-27 | Gaz De France | BURNER SYSTEM, PARTICULARLY AT HIGH SPEED OUTLET OF BURNED GASES |
| EP0321611A1 (en) * | 1987-12-22 | 1989-06-28 | Franco Andreoli | Furnace tube for a radiation heating tube of an industrial oven |
| DE3915957A1 (en) * | 1989-05-18 | 1990-11-22 | Lbe Beheizungseinrichtungen | COVERED HEATING PIPE |
| DE4132235C1 (en) * | 1991-09-27 | 1992-08-13 | Ws Waermeprozesstechnik Gmbh, 7253 Renningen, De | |
| WO2000008385A1 (en) * | 1998-08-03 | 2000-02-17 | Igor Nikolaevich Nikolaev | Method for burning fuel and device for realising the same |
| US20070107642A1 (en) | 2005-11-14 | 2007-05-17 | Johnson J E | Fuel ignition systems |
| WO2009014979A2 (en) * | 2007-07-20 | 2009-01-29 | Shell Oil Company | A flameless combustion heater |
| DE102007040788B4 (en) | 2007-08-28 | 2009-06-25 | Ibs Industrie-Brenner-Systeme Gmbh | tube element |
| EP2425187A2 (en) * | 2009-04-27 | 2012-03-07 | Kingspan Holdings (IRL) Limited | A solar collector |
| RU171677U1 (en) * | 2016-12-23 | 2017-06-09 | Елизавета Евгеньевна Беркович | CERAMIC FITTING FOR CHIMNEY FROM CERAMIC PIPES |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2105533A (en) * | 1934-01-19 | 1938-01-18 | Selas Company | Gas burning apparatus |
| GB564523A (en) * | 1943-03-12 | 1944-10-02 | John Fallon | Improvements in gas-fired tubular heaters |
| US2478732A (en) * | 1948-04-01 | 1949-08-09 | Wilson | Combustion tube heating apparatus |
| GB716579A (en) * | 1952-03-27 | 1954-10-06 | Internat Furnace Equipment Com | Radiant-heating elements for furnaces |
| US3309072A (en) * | 1962-06-04 | 1967-03-14 | Shenango Ceramics Inc | Recuperator tubes |
| CH496919A (en) * | 1967-12-12 | 1970-09-30 | Fetok Gmbh | Radiation pipe device |
-
1984
- 1984-12-28 DE DE3447603A patent/DE3447603C2/en not_active Expired
-
1985
- 1985-11-15 EP EP85114525A patent/EP0191910B1/en not_active Expired - Lifetime
- 1985-11-15 DE DE8585114525T patent/DE3575464D1/en not_active Expired - Fee Related
- 1985-11-15 AT AT85114525T patent/ATE49650T1/en not_active IP Right Cessation
- 1985-12-04 DK DK562485A patent/DK160644C/en not_active IP Right Cessation
- 1985-12-09 HU HU854703A patent/HUT41886A/en unknown
- 1985-12-16 NO NO855058A patent/NO855058L/en unknown
- 1985-12-16 SU SU853989629A patent/SU1438627A3/en active
- 1985-12-18 PL PL1985256900A patent/PL154687B1/en unknown
- 1985-12-27 JP JP60299625A patent/JPS61173018A/en active Granted
- 1985-12-27 YU YU2050/85A patent/YU44697B/en unknown
- 1985-12-27 CZ CS859903A patent/CZ278206B6/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS8509903A2 (en) | 1991-10-15 |
| NO855058L (en) | 1986-06-30 |
| PL256900A1 (en) | 1986-11-18 |
| HUT41886A (en) | 1987-05-28 |
| YU205085A (en) | 1989-02-28 |
| JPS61173018A (en) | 1986-08-04 |
| SU1438627A3 (en) | 1988-11-15 |
| PL154687B1 (en) | 1991-09-30 |
| DK160644C (en) | 1991-09-02 |
| YU44697B (en) | 1990-12-31 |
| DE3447603C2 (en) | 1987-02-05 |
| EP0191910A1 (en) | 1986-08-27 |
| DK562485A (en) | 1986-06-29 |
| DE3575464D1 (en) | 1990-02-22 |
| DK562485D0 (en) | 1985-12-04 |
| JPH022043B2 (en) | 1990-01-16 |
| CZ278206B6 (en) | 1993-10-13 |
| EP0191910B1 (en) | 1990-01-17 |
| DE3447603A1 (en) | 1986-07-03 |
| ATE49650T1 (en) | 1990-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |