US1691913A - Regenerative furnace - Google Patents

Regenerative furnace Download PDF

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Publication number
US1691913A
US1691913A US243539A US24353927A US1691913A US 1691913 A US1691913 A US 1691913A US 243539 A US243539 A US 243539A US 24353927 A US24353927 A US 24353927A US 1691913 A US1691913 A US 1691913A
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passages
furnace
burner
regenerator
gas
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US243539A
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Bangert Heinrich
Huhn Gustav
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D17/00Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles

Definitions

  • Our invention relates to improvements in
  • Burners for regenerative furnaces such as are now in. use are sub'- iect to rapid wear because' the direction of the 5 flameA is changed when changing over from one regenerator to the other one, so that the parts of the burner, and more particularly .the mouth thereof are exposed to changing temperatures, which causes rapid destruction of the brick work.
  • the object of the improvements is to provide a burner in which the wear is reduced, 'and with this object in view our invention consists inconstructng the burner so that the directionof the flame is not changed when changing from one regenerator to the other one, and in which therefore the molth, of the burner is always exposed to the same temperature.
  • the burner with two passages for alternately supplying the gas andconducting the heat to the regenerator chambers, and an air intake passage, the said passages being so disposed relatively to one another that only the gates controlling the regenerator chambers must be set for supplyin the gas to the burner from one chamber or t e other.v v
  • Fig.' l is a sectional elevation of the fur-i nace taken on the line 1 -1 of Fig. 2,
  • Figs. 2 and 3 are sectional plan views 'taken' on the line -2-.42 of Fig. 1 and showing Y the burner connected respectively with one or d the other .o the 'regenerator chambers,
  • Fig. 4 is a sectional lan view taken on the lined-1 of Fig. 1 an showing the passage for supplying the air
  • Figo. "s a sectional'plan view similar to the oneillustrated in Figs. 2 and 3 and showina burner provided w1th a single mouth
  • ig. 6 is a sectional elevation taken on the line 6-6 of Fig. :7 and illustrating a modification of the burner
  • 'and -f Fig. 7 is a top planview of Fig. 6. 5c
  • Fig. v5 shows a burner having a single passage 15 connected with two vertical passages 10 and 11 adapted to be alternately connected to both regenerators. Otherwise the construction of the furnace is the same as has been described with reference to Figs. 1 to 4, and the same letters' of reference have been used to indicate corresponding parts. 4
  • the passages 15,17 and 18 are disposed ina horizontal plane.
  • Figs. 6 and 7 we have shown a modification in which-the. said passages are i communicating through vertical passages 23 disposed -in la vertical plane,
  • the furnace 20 is provided with two-regenerator chambers 21 and 22 and 24 with the vburner of the furnace..
  • the said burner comprises a chamber 26 communicating with the furnace 20 through passages-.27'.l
  • the passages 23 open into the said'chamber at the bottom thereof,
  • the gas ows upwardly through the 'passage 24, and, after being mixed with'air, it is divided' into two branch, currents one owing down-- v wardly through the passa e 23 and the, re-
  • the passages 15, 17 and 18 or 23, 28 and 27 may be disposed at vdifferent angular positions, provided thatl the passages are disposed so that the current of gas can be divided-into 'branch currents one flowing through the furnace and-theother to one of the'regenerator chambers, and that the air is thoroughly a'dmixed tofthe gas.
  • the amount of gas flowing the one o to the regenerator chamber to be heated is smaller than the amount of gas flowing through the furnace. Therefore the angle included between the passages 17 and 18 may be smaller than vIn the examples illus- 1.
  • a regenerative furnace having two pas- Y sages for alternate communication with a source of gas VSupply and with a stack and connected with separate regenerator chambers, a burner passage communicating with the furnace, and a passage for supplying air,
  • A' regenerative furnace having two assages for alternate communication w-i source o f gas supply and with a stack and connected with-'separate regenerator cha'mbers, aburner passage communicating with the furnace, and a' passage for supplying air, all the said passages meeting within the burner at a common air and gas mixing :md
  • the saidv passages communieating with therenerator vchambers and Athe furnace being disposed substantially at products of combustion into streams respectively sup lied to the burner p an to fp the pair of passages which at the time being communicates with the stack.
  • a regenerative furnace having two regenerator chambers, sets of alternatingrinarrangement with each other andcommunicating respectively with the jrespective regenerator chambers, said sets of passages being designed for connection alter- Y nately with a source of gas sup ly and a stack, 'a burner passageleading'n t e furnace,I

Description

N-ovv 20a H. BANGERT ETAL REGENERATIVE EURNAGE Filed Dec, so, 1927 Lam-913 4 Sheets-Sheet 1 REGEHERATIVE FURNAGE Filed Dec. 30, 1927 4 Sheets-Sheet 2 Il l INVENTORJ)` ATTORNEY Nov. 20, 1928. l l 1,691,913
H. BANGERT E-r Al.
REGENERATIVE FURNAGE Filed Dec, 30, 1927 4 Sheets-Sheet 1 A o 26 y /`29 7 I me' l 28 A TTORNEY Pasenaa Nov. 20,1928.-
Y UNITED STATES I innen 'grafi-'sur r-rres.'vv
BEGENERATIVE FUBNACE.
Application :Bled December 80, 1927, serial No. 248,539, and Germany January 2o, 1833.
Our invention relates to improvements in;
regenerative furnaces. Burners for regenerative furnaces such as are now in. use are sub'- iect to rapid wear because' the direction of the 5 flameA is changed when changing over from one regenerator to the other one, so that the parts of the burner, and more particularly .the mouth thereof are exposed to changing temperatures, which causes rapid destruction of the brick work. The object of the improvements is to provide a burner in which the wear is reduced, 'and with this object in view our invention consists inconstructng the burner so that the directionof the flame is not changed when changing from one regenerator to the other one, and in which therefore the molth, of the burner is always exposed to the same temperature. In carrying out the invention we provide the burner with two passages for alternately supplying the gas andconducting the heat to the regenerator chambers, and an air intake passage, the said passages being so disposed relatively to one another that only the gates controlling the regenerator chambers must be set for supplyin the gas to the burner from one chamber or t e other.v v
For the urpose of explaining the invention severa? examples embodying the same have been shown in the accompanyingdrawings in which the same reference characters have beenused in all the views to indicate corresponding parts. 1n said drawings,
Fig.' l, is a sectional elevation of the fur-i nace taken on the line 1 -1 of Fig. 2,
Figs. 2 and 3, are sectional plan views 'taken' on the line -2-.42 of Fig. 1 and showing Y the burner connected respectively with one or d the other .o the 'regenerator chambers,
Fig. 4, is a sectional lan view taken on the lined-1 of Fig. 1 an showing the passage for supplying the air, Figo. "s a sectional'plan view similar to the oneillustrated in Figs. 2 and 3 and showina burner provided w1th a single mouth, ig. 6, is a sectional elevation taken on the line 6-6 of Fig. :7 and illustrating a modification of the burner, 'and -f Fig. 7 is a top planview of Fig. 6. 5c
furnace vcomprises a heating chamber 7 and a regenerator. 8 comprising two chambers- `thesaid chambers In the example shown in Figs; 1 to 4, the' adapted to communicate through passages 9 l either with the supply of gas or'with a stack,
eing connected with the furnace through vertical passages 10 and 11 formed atthelr top ends with horizontal pasvthe intake end the furnace is divided by vertical partitions 14 into four passages 15'. The passages 17, 18,13 and 15 provide the multile burner of the furnace. As *appears from lsages 17, 18. In the example shown in the I ils. 1 and 2, the said passa es meet at pdints I in 'cated in Figs. 2 and 4 y the reference character 16, and the passages 17, 18 and 15 are disposed at angles of about 120, the said angles having been indicatedin Fig. 2 by the referencecharacter w.
ln Figs. 2 and 3 we have indicated the dow .of the gases through the burner.. lAs shown in Fig., 2,' theregenerator chamberconnected with the pass es 11 is onnected with the supply of gas, t e said gas being heated within the regenerator chamber kand owing up' wardly through the passages 11. At the top endof the said passages the currents ont gas are divided each into two branches one dowing to the right and the other to the left through the passages 17 and 18, 'and each branchcurrent is again divided into two branches, the main portion owing through one of the passages 15,-v and the other art owingthrougha assagel and to oneo the passages 10. At t e po1nt16 air for supporting combustion is admixed to the gas, which air hows downwardly through the passages 13. The products of combustion dowingl thiough the passa es 15 are used for heating the furnace, and t owingdownwardly hrough the'passalges 10 are used for heating the second regenerator. After the said second regenerator has been heated, and the -rst-named re ngerator through'which so tar the as has een supplied to the furnace has coo ed ed, the re en erators are reversed, whereupon the gas ows *upwardlyl through the passages 10, and ortons of the `roducts of combustion ow downwardly ough the passages` 11. Igt
e products' of combustion will be understood that in both cases the iow sages and 11. .But we wish it to be understood that our invention is not limited ,to this feature. Thus, Fig. v5 shows a burner having a single passage 15 connected with two vertical passages 10 and 11 adapted to be alternately connected to both regenerators. Otherwise the construction of the furnace is the same as has been described with reference to Figs. 1 to 4, and the same letters' of reference have been used to indicate corresponding parts. 4
In he example so far described the passages 15,17 and 18 are disposed ina horizontal plane. In Figs. 6 and 7 we have shown a modification in which-the. said passages are i communicating through vertical passages 23 disposed -in la vertical plane, As shown in the said figures, the furnace 20 is provided with two- regenerator chambers 21 and 22 and 24 with the vburner of the furnace.. As'
shown, the said burner comprises a chamber 26 communicating with the furnace 20 through passages-.27'.l The passages 23 open into the said'chamber at the bottom thereof,
and the passages 24 are formed at their ,top
ends with laterally directed portions 28 open-v in into the chamber at the rear thereof. Af ve the chamber 26 there is a transverse passage 29 communicating through vertical passages-30 with a supply of air.
As shown in Fig. 6, the as flows upwardly from the regenerator cham r 21 through the passage 23, and it is mixed with air within I the chamber 26. The main part of the prodl uctslof combustion Hows to the left land through the passages27, while the remain.-
mg part iows downwardly through the pas- .'.sage 24 and thev rcgenerator4 chamber 22.
After reversing the regenerator chambers, the gas ows upwardly through the 'passage 24, and, after being mixed with'air, it is divided' into two branch, currents one owing down-- v wardly through the passa e 23 and the, re-
. enerator chamber 21 and .t e other one flowmg through the passages 27'.
Also in this case the products of combustion iow through the passages 27 of the burner in the same' direction whether the gas is supplied from regenerator chamber 21 or 22.
'The passages 15, 17 and 18 or 23, 28 and 27 may be disposed at vdifferent angular positions, provided thatl the passages are disposed so that the current of gas can be divided-into 'branch currents one flowing through the furnace and-theother to one of the'regenerator chambers, and that the air is thoroughly a'dmixed tofthe gas. The amount of gas flowing the one o to the regenerator chamber to be heated is smaller than the amount of gas flowing through the furnace. Therefore the angle included between the passages 17 and 18 may be smaller than vIn the examples illus- 1. A regenerative furnace having two pas- Y sages for alternate communication with a source of gas VSupply and with a stack and connected with separate regenerator chambers, a burner passage communicating with the furnace, and a passage for supplying air,
all the said passages meeting at a common air ,and gas mixing and mixture ignitionpoint and thethree first-named passages being so4 relatively arranged. as to eiect a division of the products of combustion into two portions suppliedrespectively the burner passage and that passage of the first-named i se which at the time communicates with the stack. v
2. A' regenerative furnace having two assages for alternate communication w-i source o f gas supply and with a stack and connected with-'separate regenerator cha'mbers, aburner passage communicating with the furnace, and a' passage for supplying air, all the said passages meeting within the burner at a common air and gas mixing :md
ignition' point, the saidv passages communieating with therenerator vchambers and Athe furnace being disposed substantially at products of combustion into streams respectively sup lied to the burner p an to fp the pair of passages which at the time being communicates with the stack.
3. In a burner according to claim`1, the feature that the said air supplying passage and the passages communicating with the regenerator chambers'open into a subdivided angles of 120 so as to cause division of the Y ine.
ilo
chamber forming a multiple furnace burner. Y 4. A regenerative furnace having two regenerator chambers, sets of alternatingrinarrangement with each other andcommunicating respectively with the jrespective regenerator chambers, said sets of passages being designed for connection alter- Y nately with a source of gas sup ly and a stack, 'a burner passageleading'n t e furnace,I
the stack. 'Y
5. In a. regenerative furnace, a furnace seiiof chamber, two regenerator chambers, a
said paages inte at a common point, vand baies a to deflectV portions of -sages servingalternately as fuel supply -pas-V vsages for the furnace and heating flues for the regenerators, aA burner passage'between -said` sets of passages and the furnace chamber, said burner passage being subdivided -nto a plurality .of passages staggered with relation to'thezsets df regenerator chamber" passages and each communicating at an angle iwith 'a passage leading each yregeneraizor chamber, and means for conducting air for mixture with the gas 'at the points of 'connecvtion of the burner passages with the generator chamber passagges,4 Y
testimony whereof we aix jour signatures.
` HEINRICH BANGERT, I AGUS'IAV*HUHlSL-
US243539A 1923-01-20 1927-12-30 Regenerative furnace Expired - Lifetime US1691913A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1262491B (en) * 1962-02-27 1968-03-07 Heinrichtung Koppers Ges Mit B Burner device for heating tower-like regenerative gas or wind heaters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1262491B (en) * 1962-02-27 1968-03-07 Heinrichtung Koppers Ges Mit B Burner device for heating tower-like regenerative gas or wind heaters

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