NO130702B - - Google Patents

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Publication number
NO130702B
NO130702B NO189272A NO189272A NO130702B NO 130702 B NO130702 B NO 130702B NO 189272 A NO189272 A NO 189272A NO 189272 A NO189272 A NO 189272A NO 130702 B NO130702 B NO 130702B
Authority
NO
Norway
Prior art keywords
flue gas
boiler
tubes
tube
water
Prior art date
Application number
NO189272A
Other languages
Norwegian (no)
Other versions
NO130702C (en
Inventor
E Biding
Original Assignee
Svenska Maskinverken Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Svenska Maskinverken Ab filed Critical Svenska Maskinverken Ab
Publication of NO130702B publication Critical patent/NO130702B/no
Publication of NO130702C publication Critical patent/NO130702C/no

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B13/00Steam boilers of fire-box type, i.e. the combustion of fuel being performed in a chamber or fire-box with subsequent flue(s) or fire tube(s), both chamber or fire-box and flues or fire tubes being built-in in the boiler body
    • F22B13/02Steam boilers of fire-box type, i.e. the combustion of fuel being performed in a chamber or fire-box with subsequent flue(s) or fire tube(s), both chamber or fire-box and flues or fire tubes being built-in in the boiler body mounted in fixed position with the boiler body disposed upright

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Incineration Of Waste (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

Pinnerør for dampkjeler. Stick tubes for steam boilers.

Den foreliggende oppfinnelse angår pinnerør for dampkjeler. Det har lenge vært kjent å plasere vannrør i røkgasskanaler ovenfor fyren i en kjele. Disse rør har overflateøkende elementer i form av pinner på utsiden. Vannet strømmer omkring brennkammeret, damprommet er utformet i kjelens øvre del, og i denne del munner pinnerørenes øvre del ut. The present invention relates to pin tubes for steam boilers. It has long been known to place water pipes in flue gas ducts above the boiler in a boiler. These tubes have surface-increasing elements in the form of sticks on the outside. The water flows around the combustion chamber, the steam room is designed in the upper part of the boiler, and in this part the upper part of the pin tubes opens out.

I forbindelse med pinnerørene har der vært. iakttatt et generende problem bestående i at pinnerørenes nedre del, som således ligger nærmest' brennkammeret, -blir - utsatt for så sterk varme, at pinnene blir brent i stykker og der ,på endene av dem hoper seg .opp slagg som tilstopper ringspaltene mellom rørene og innsiden av .røkgasskanalene. Hensikten med den foreliggende oppfinnelse er -å forhindre at pinner i rørenes nedre del blir ødelagt med derav følgende tilstopping med slagg. Patentkravet angir den oppfinnelse som løser dette problem. In connection with the pin pipes, there have been noticed an annoying problem consisting in the fact that the lower part of the pin tubes, which is thus closest to the combustion chamber, -is exposed to such strong heat that the pins are burnt to pieces and there, on their ends, slag accumulates which clogs the ring gaps between the tubes and the inside of the flue gas ducts. The purpose of the present invention is to prevent pins in the lower part of the pipes from being destroyed with the consequent clogging with slag. The patent claim indicates the invention that solves this problem.

I det følgendé vir oppfinnelsen bli forklart nærmere under In the following, the invention will be explained in more detail below

henvisning til tegningen. reference to the drawing.

Fig. 1 viser skjematisk aksialsnitt av en dampkjele forsynt Fig. 1 shows a schematic axial section of a steam boiler supplied

med pinnerør i henhold til oppfinnelsen. with pin tubes according to the invention.

Fig. 2 viser skjematisk partielt aksialsnitt av et pinnerør Fig. 2 shows a schematic partial axial section of a pin tube

i større målestokk. on a larger scale.

På fig. 1 er der vist en dampkjele av i og for seg kjent art forsynt med en isolerende kappe 1, et brennkammer 2 og et vannrom 3 som omgir dette. Den stiplede linje -4 markerer overgangsflaten mellom vannet og damprommet 5 over vannrommet 3. En oljebrenner 6 er antydet skjematisk. Forbrenningsgassene fra brennkammeret 2 strømmer oppover gjennom røkgasskanaler 7 og ut gjennom et røkgassutløp 8 øverst i kjelen. Damp uttas gjénnom et rør 9, og vann-nivået vedlike-holdes med et reguleringsorgan 10. Sot kan uttas fra bunnen av brennkammeret ve.d 11. 12 betegner kjelens understell. I røkgasskanalene 7 er der plasert pinnerør 13 som gjennomstrømmes av vann som trer inn i dem nedentil fra vannrommet 3, mens pinnerørene ved sine øvre ender står i forbindelse med damprommet 5« Pinnerørene 13 omstrømmes av røkgassene og bærer på utsiden overflateøkende elementer i form av pinner 14. In fig. 1 shows a steam boiler of a known type provided with an insulating jacket 1, a combustion chamber 2 and a water chamber 3 which surrounds this. The dashed line -4 marks the transition surface between the water and the steam space 5 above the water space 3. An oil burner 6 is indicated schematically. The combustion gases from the combustion chamber 2 flow upwards through flue gas channels 7 and out through a flue gas outlet 8 at the top of the boiler. Steam is taken out through a pipe 9, and the water level is maintained with a regulating device 10. Soot can be taken out from the bottom of the combustion chamber at 11. 12 denotes the boiler's chassis. In the flue gas ducts 7 there are placed stick tubes 13 which are flowed through by water that enters them from below from the water space 3, while the stick tubes at their upper ends are in connection with the steam room 5. 14.

Fig. 2 viser nå den spesielle utformning av pinnerørene. Fig. 2 now shows the special design of the pin tubes.

Over størstedelen av lengden av røret 13 har pinnerørene 14 en og samme Over most of the length of the tube 13, the pin tubes 14 are one and the same

lengde. Ved rørets nedre ende, som ligger nærmest gassinnløpet i røk-•gasskanalen fra brennkammeret, er imidlertid pinnene 14 utformet med jevnt avtagende lengde mot rørets underkant. Herved blir det for-hindret at pinnene brennes av, og at der dannes slaggklumper som tetter igjen den ringformede spalte mellom utsiden av røret 13 og innsiden av røkgasskanalen 7. Det skal bemerkes at problemet med avbrente pinner hittil har opptrådt uavhengig av om pinnene var utført av jern eller sammensatt, altså i form av kopperpinner med jernmantel. length. However, at the lower end of the tube, which is closest to the gas inlet in the smoke gas channel from the combustion chamber, the pins 14 are designed with a uniformly decreasing length towards the lower edge of the tube. This prevents the pins from burning off, and slag lumps forming which clog the annular gap between the outside of the pipe 13 and the inside of the flue gas channel 7. It should be noted that the problem of burnt pins has so far occurred regardless of whether the pins were made of iron or composite, i.e. in the form of copper pins with an iron jacket.

Claims (1)

1. Pinnerør for dampkjeler, utformet som et rør med overflate-økende elementer i form av pinner samt bestemt til å anordnes i en røk-gasskanal og omstrømmes av røkgasser samt gjennomstrømmes av f.eks. vann for oppvarmning av dette, karakterisert ved at pinnerørets pinner har jevnt' avtagende lengde mot enden av røret innen det område av dette som ligger nærmest innløpet i•røkgasskanalen fra fyren.1. Stick pipe for steam boilers, designed as a pipe with surface-increasing elements in the form of sticks and intended to be arranged in a flue gas channel and surrounded by flue gases and flowed through by e.g. water for heating this, characterized in that the sticks of the stick tube have a steadily decreasing length towards the end of the tube within the area of this which is closest to the inlet of the flue gas duct from the boiler.
NO189272A 1971-09-03 1972-05-29 NO130702C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1118471A SE346370B (en) 1971-09-03 1971-09-03

Publications (2)

Publication Number Publication Date
NO130702B true NO130702B (en) 1974-10-14
NO130702C NO130702C (en) 1975-01-22

Family

ID=20293496

Family Applications (1)

Application Number Title Priority Date Filing Date
NO189272A NO130702C (en) 1971-09-03 1972-05-29

Country Status (10)

Country Link
JP (1) JPS568241B2 (en)
BE (1) BE784163A (en)
DE (1) DE2226299C2 (en)
DK (1) DK128334B (en)
FI (1) FI52399C (en)
FR (1) FR2150682A1 (en)
GB (1) GB1394233A (en)
NL (1) NL7207306A (en)
NO (1) NO130702C (en)
SE (1) SE346370B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59144301U (en) * 1983-03-11 1984-09-27 西田鉄工株式会社 Standpipe boiler with exhaust gas
JPS61125503A (en) * 1984-11-07 1986-06-13 株式会社 平川鉄工所 Boiler
JPS61280301A (en) * 1985-06-04 1986-12-10 株式会社 平川鉄工所 Boiler
JPH0645123Y2 (en) * 1985-09-12 1994-11-16 株式会社平川鉄工所 boiler
ES2101285T3 (en) * 1993-12-14 1997-07-01 Aalborg Ind As HEAT EXCHANGER WITH BODY IN TUBULAR SHAPE.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259107A (en) * 1963-08-02 1966-07-05 Dalin David Steam and hot water boiler
DE1426613A1 (en) * 1964-07-10 1972-01-05 Svenska Maskinverken Ab Steam boiler
DE1501643B2 (en) * 1965-04-01 1971-11-18 L. & C. Steinmüller GmbH, 5270 Gummersbach AHITZE STEAM GENERATOR

Also Published As

Publication number Publication date
FI52399B (en) 1977-05-02
NL7207306A (en) 1973-03-06
FI52399C (en) 1977-08-10
DE2226299A1 (en) 1973-03-08
DE2226299C2 (en) 1983-01-20
JPS568241B2 (en) 1981-02-23
SE346370B (en) 1972-07-03
JPS4833205A (en) 1973-05-08
NO130702C (en) 1975-01-22
BE784163A (en) 1972-09-18
GB1394233A (en) 1975-05-14
DK128334B (en) 1974-04-08
FR2150682A1 (en) 1973-04-13

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