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
Links
- 239000003546 flue gas Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002893 slag Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B13/00—Steam boilers of fire-box type, i.e. boilers where both combustion chambers and subsequent flues or fire tubes are arranged within the boiler body
- F22B13/02—Steam boilers of fire-box type, i.e. boilers where both combustion chambers and subsequent flues or fire tubes are arranged within the boiler body mounted in fixed position with the boiler body disposed upright
Landscapes
- 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)
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)
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 |
DK0658736T3 (en) * | 1993-12-14 | 1997-10-13 | Aalborg Ind As | Ribbed tube heat exchanger |
Family Cites Families (3)
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 |
-
1971
- 1971-09-03 SE SE1118471A patent/SE346370B/xx unknown
- 1971-12-14 JP JP10073571A patent/JPS568241B2/ja not_active Expired
-
1972
- 1972-05-29 NO NO189272A patent/NO130702C/no unknown
- 1972-05-30 FR FR7219263A patent/FR2150682A1/fr active Pending
- 1972-05-30 NL NL7207306A patent/NL7207306A/xx active Search and Examination
- 1972-05-30 FI FI150972A patent/FI52399C/en active
- 1972-05-30 GB GB2534572A patent/GB1394233A/en not_active Expired
- 1972-05-30 DK DK270072A patent/DK128334B/en not_active IP Right Cessation
- 1972-05-30 BE BE784163A patent/BE784163A/en not_active IP Right Cessation
- 1972-05-30 DE DE19722226299 patent/DE2226299C2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FI52399B (en) | 1977-05-02 |
FR2150682A1 (en) | 1973-04-13 |
FI52399C (en) | 1977-08-10 |
JPS4833205A (en) | 1973-05-08 |
NL7207306A (en) | 1973-03-06 |
JPS568241B2 (en) | 1981-02-23 |
GB1394233A (en) | 1975-05-14 |
BE784163A (en) | 1972-09-18 |
SE346370B (en) | 1972-07-03 |
DE2226299A1 (en) | 1973-03-08 |
NO130702C (en) | 1975-01-22 |
DK128334B (en) | 1974-04-08 |
DE2226299C2 (en) | 1983-01-20 |
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