US1718331A - Tank-furnace-heating means - Google Patents

Tank-furnace-heating means Download PDF

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Publication number
US1718331A
US1718331A US164459A US16445927A US1718331A US 1718331 A US1718331 A US 1718331A US 164459 A US164459 A US 164459A US 16445927 A US16445927 A US 16445927A US 1718331 A US1718331 A US 1718331A
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United States
Prior art keywords
checker
bricks
furnace
chamber
tank
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Expired - Lifetime
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US164459A
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Robert P Callard
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LIBBEYOWENS SHEET GLASS Co
LIBBEYOWENS SHEET GLASS COMPAN
Original Assignee
LIBBEYOWENS SHEET GLASS COMPAN
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Priority to US164459A priority Critical patent/US1718331A/en
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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/235—Heating the glass
    • C03B5/237—Regenerators or recuperators specially adapted for glass-melting furnaces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/009—Heat exchange having a solid heat storage mass for absorbing heat from one fluid and releasing it to another, i.e. regenerator
    • Y10S165/03—Mass formed of modules arranged in three dimensional matrix, i.e. checkerwork
    • Y10S165/032—Mass formed of modules arranged in three dimensional matrix, i.e. checkerwork having gas supply or exhaust manifold structure
    • Y10S165/033—Mass formed of modules arranged in three dimensional matrix, i.e. checkerwork having gas supply or exhaust manifold structure with flow control device, i.e. valve

Definitions

  • the present invention relates to a tank furnace, and more particularly to an 1mprovement to the heating means therefor.
  • An important object of the lnyentlon is to provide in a tank furnace, includ ng a checker-chamber and checker-bricks arranged within said chamber, means for posltlvely 1nsurin that a flow of air passing throughthe cham er will pass between the checker-bricks arranged therein.
  • Another object of the invention is to provide in a tank furnace, including a checkerchamber and a plurality of checker-bricks arranged therein, a slab carried by the top of the chamber wall and associated with the checkerbricks in a manner that a flow of air passing through the chamber will be forced to pass between the checker-bricks and in around the same.
  • Still another and important object of the invention is to provide in a tank furnace, ncluding a checker-chamber and a plurality of checker-bricks adapted for alternate flows of hot and cold air to be passed therethrough,
  • Fig. 1 is a diagrammatic plan View of a form of tank furnace to which the present invention applies.
  • Fig. 2 is a fragmentary vertical sectional view through one of the checker chambers and associated parts, illustrating my invention in use.
  • the tank furnace illustrated is designed primarily for the production of molten glass from which articles can be formed, but it is to be understood that the invention is in no way restricted to a glass tank furnace.
  • the numeral 5 designates a tank furnace in its entirety.
  • the furnace is adapted to contain a mass of molten glass 6 or other material to be worked upon which may be introduced by means of the doghouse 7.
  • a plurality of regenerative heating means 8 Arranged on both sides of the furnace, as illustrated, is a plurality of regenerative heating means 8.
  • the regenerative type of furnace is periodically changed from side to side, that is, for one period of the operation the flames will issue from one side of the furnace and the exhaust gases Will pass through the opposite sides to the stack.
  • the exhaust gases are passed through a checker-work which comprises a plurality of bricks piled up in a suitable manner to form an open brick-work adapted to absorb heat from the heated gases.
  • the side of the furnace that has been in operation is cut off and the opposite side is adapted to produce the heating flames.
  • the air that is used with the gas for the purposes of heating is preheated by passing it through the checkerbrick arrangement above referred to.
  • checker-bricks Due to the contraction and expansion of the checker-bricks, they settle and leave a gap between the checker-brick and the top of the checker-chamber in which the brick is contained, and as the air naturally follows the path of least resistance, it short circuits around the top of the checker-brick pile so that the incoming cold air does not get the benefit of the heated checker-chamber, which results in a loss of efficiency.
  • the numeral 9 designates a gas pipe arranged near the port of the regenerator 8.
  • the checker-chamber 10 is provided with the plurality of checker-bricks 11 arranged in a criss-cross fashion to provide openings through which a flow of air may be passed.
  • the incoming air is introduced through a tunnel 12 up through the opening 13 in the bottom of the checker chamber and preferably through the checker-bricks l1, and on into the channel 14.
  • the numeral 15 designates a gap between the top of the checkerbrick pile and the top 16 of the checkerchaniber.
  • the checker bricks collect a certain amount of dirt which adds a slight resistance to the passage of the air therebetween.
  • the incoming air will have a tendency, due to less resistance, to pass around the top of the 16 and depending a sufiicient distance into the checker-chamber to prevent a short circuiting of the cold air.
  • a recess 18 can be formed in the checker-brick ile to accommodate the hanging key block 1 It will be seen that, although the gap 15 is present, the key block 17 will prevent a short circuiting of the air causing the air to pass between the checkerbricks, and thus become preheated.
  • Fig. 2 the regenerator shown is in operation, the flame 19 being created by a mix-' ture of the air passing in the path indicated by the numerals and mixing with the gas 9.
  • the heated gases from the opposite side of the furnace will pass through the checker-bricks 11 and through the tunnel to the stack, thus heating the checker-bricks for the next reversal.
  • a tank furnace including a checkerchamber having an inlet at the bottom and an outlet at the top thereof arranged in staggered relation to said inlet, a checker construction composed of checker-bricks arranged within said chamber and spaced from the side walls and top wall thereof, and means for preventing the free passage of the incoming air through the space above the checker construction and for directing the said air between the checker-bricks.
  • a tank furnace including a checkerchamber having an inlet at the bottom and an outlet at the top thereof arranged in staggered relation to said inlet, a checker conthe side walls and top wall thereof, and a bafile wall obstructing the space above the checker-bricks to direct the incoming air through the checker construction.
  • a tank furnace including a checkerchamber having an inlet at the bottom and an outlet at the top thereof arranged in staggered relation to said inlet, a c ecker construction composed of checker-bricks arranged within said chamber and spaced from the side walls and top wall thereof, and a key block carried by the top wall of said chamber and depending downwardly into the checker construction for preventing the passage of the incoming air through the space above the checker construction and for directirig its course therethrou h.
  • tank furnace inclu ing a checkerchamber having an inlet at the bottom and an outlet at the top thereof arran ed in staggered relation to said inlet, a c ecker construction composed of checker-bricks arranged within said chamber and spaced from the side walls and top wall thereof, and means arranged above the checker construction for obstructing the passage thereabove to cause the incoming air to pass between the checker-bricks.
  • a tank furnace including a checkerchamber having an inlet at the bottom and an outlet at the top thereof arranged in staggered relation to said inlet, a checker construction composed of checker-bricks arranged within said chamber and spaced from the side walls and top wall thereof, and a key block carried by the top wall of the checker-chamber and depending downwardly into a recess in the top of said checker construction for preventin passage of the incoming air over the top 0 the checker construction and for directing its course between the. checker-bricks.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Description

June 25, 1929. R p A RD 1,718,331
TANK FURNACE HEATING MEANS Filed Jan. 29, I927 Jnwntot Robert P (Ia/bro Quota,
Patented June 25, 1929.
UNITED STATES PATENT OFFICE.
ROBERT P. CALLARD, 0F CHARLESTON WEST VIRGINIA, ASSIGNOR TO THE LIBBEY- OWENS SHEET ,GLASS COMPANY, OF TOLEDO, OHIO, A CORPOB ATION OI OHIO.
TANK-FURNACE-HEATING MEANS.
Application filed January 29, 1927. Serial No. 164,459.
The present invention relates to a tank furnace, and more particularly to an 1mprovement to the heating means therefor.
An important object of the lnyentlon is to provide in a tank furnace, includ ng a checker-chamber and checker-bricks arranged within said chamber, means for posltlvely 1nsurin that a flow of air passing throughthe cham er will pass between the checker-bricks arranged therein.
Another object of the invention is to provide in a tank furnace, including a checkerchamber and a plurality of checker-bricks arranged therein, a slab carried by the top of the chamber wall and associated with the checkerbricks in a manner that a flow of air passing through the chamber will be forced to pass between the checker-bricks and in around the same.
Still another and important object of the invention is to provide in a tank furnace, ncluding a checker-chamber and a plurality of checker-bricks adapted for alternate flows of hot and cold air to be passed therethrough,
" means whereby both the heated and cold air will be caused to pass between the checkerbricks and not short circuited around a gap formed between the top of the checker-bricks and the checker-chamber top formed by reason of the expansion and contraction of the bricks when subjected to the action of the air flows.
Other objects and advantages of the invention will become more apparent during the' course of the following description.
In the drawings wherein like numerals are employed to designate like parts throughout the same,
Fig. 1 is a diagrammatic plan View of a form of tank furnace to which the present invention applies, and
Fig. 2 is a fragmentary vertical sectional view through one of the checker chambers and associated parts, illustrating my invention in use.
The tank furnace illustrated is designed primarily for the production of molten glass from which articles can be formed, but it is to be understood that the invention is in no way restricted to a glass tank furnace.
The numeral 5 designates a tank furnace in its entirety. The furnace is adapted to contain a mass of molten glass 6 or other material to be worked upon which may be introduced by means of the doghouse 7. Arranged on both sides of the furnace, as illustrated, is a plurality of regenerative heating means 8. As is well known in the art, the regenerative type of furnace is periodically changed from side to side, that is, for one period of the operation the flames will issue from one side of the furnace and the exhaust gases Will pass through the opposite sides to the stack. To conserve heat, etc., the exhaust gases are passed through a checker-work which comprises a plurality of bricks piled up in a suitable manner to form an open brick-work adapted to absorb heat from the heated gases. Upon reversal of the operation, the side of the furnace that has been in operation is cut off and the opposite side is adapted to produce the heating flames. The air that is used with the gas for the purposes of heating is preheated by passing it through the checkerbrick arrangement above referred to.
Due to the contraction and expansion of the checker-bricks, they settle and leave a gap between the checker-brick and the top of the checker-chamber in which the brick is contained, and as the air naturally follows the path of least resistance, it short circuits around the top of the checker-brick pile so that the incoming cold air does not get the benefit of the heated checker-chamber, which results in a loss of efficiency.
The numeral 9 designates a gas pipe arranged near the port of the regenerator 8. The checker-chamber 10 is provided with the plurality of checker-bricks 11 arranged in a criss-cross fashion to provide openings through which a flow of air may be passed. The incoming air is introduced through a tunnel 12 up through the opening 13 in the bottom of the checker chamber and preferably through the checker-bricks l1, and on into the channel 14. The numeral 15 designates a gap between the top of the checkerbrick pile and the top 16 of the checkerchaniber. As there is a certain amount of dust and other foreign matter conveyed by the exhaust gases, the checker bricks collect a certain amount of dirt which adds a slight resistance to the passage of the air therebetween. When the gap 15 has been formed, and in actual practice this gap sometimes amounts to as much as six inches, the incoming air will have a tendency, due to less resistance, to pass around the top of the 16 and depending a sufiicient distance into the checker-chamber to prevent a short circuiting of the cold air. A recess 18 can be formed in the checker-brick ile to accommodate the hanging key block 1 It will be seen that, although the gap 15 is present, the key block 17 will prevent a short circuiting of the air causing the air to pass between the checkerbricks, and thus become preheated.
In Fig. 2, the regenerator shown is in operation, the flame 19 being created by a mix-' ture of the air passing in the path indicated by the numerals and mixing with the gas 9. Upon reversal of the tank, the heated gases from the opposite side of the furnace will pass through the checker-bricks 11 and through the tunnel to the stack, thus heating the checker-bricks for the next reversal.
It is to be understood that the form of the invention herewith shown and described is to be taken as the preferred embodiment of the same, and that various changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.
I claim:
1. A tank furnace including a checkerchamber having an inlet at the bottom and an outlet at the top thereof arranged in staggered relation to said inlet, a checker construction composed of checker-bricks arranged within said chamber and spaced from the side walls and top wall thereof, and means for preventing the free passage of the incoming air through the space above the checker construction and for directing the said air between the checker-bricks.
2. A tank furnace including a checkerchamber having an inlet at the bottom and an outlet at the top thereof arranged in staggered relation to said inlet, a checker conthe side walls and top wall thereof, and a bafile wall obstructing the space above the checker-bricks to direct the incoming air through the checker construction.
3. A tank furnace including a checkerchamber having an inlet at the bottom and an outlet at the top thereof arranged in staggered relation to said inlet, a c ecker construction composed of checker-bricks arranged within said chamber and spaced from the side walls and top wall thereof, and a key block carried by the top wall of said chamber and depending downwardly into the checker construction for preventing the passage of the incoming air through the space above the checker construction and for directirig its course therethrou h.
4. tank furnace inclu ing a checkerchamber having an inlet at the bottom and an outlet at the top thereof arran ed in staggered relation to said inlet, a c ecker construction composed of checker-bricks arranged within said chamber and spaced from the side walls and top wall thereof, and means arranged above the checker construction for obstructing the passage thereabove to cause the incoming air to pass between the checker-bricks.
5. A tank furnace including a checkerchamber having an inlet at the bottom and an outlet at the top thereof arranged in staggered relation to said inlet, a checker construction composed of checker-bricks arranged within said chamber and spaced from the side walls and top wall thereof, and a key block carried by the top wall of the checker-chamber and depending downwardly into a recess in the top of said checker construction for preventin passage of the incoming air over the top 0 the checker construction and for directing its course between the. checker-bricks.
' Signed at Charleston, in the county of Kanawha and State of West Virginia, this 25th day of January 1927.
ROBERT P. CALLARD.
US164459A 1927-01-29 1927-01-29 Tank-furnace-heating means Expired - Lifetime US1718331A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519749A1 (en) * 1982-01-08 1983-07-18 Produits Refractaires

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519749A1 (en) * 1982-01-08 1983-07-18 Produits Refractaires
EP0084281A1 (en) * 1982-01-08 1983-07-27 Societe Europeenne Des Produits Refractaires Construction of a regeneration furnace
US4479778A (en) * 1982-01-08 1984-10-30 Societe Europeenne Des Produits Refractaires Construction of regenerator furnaces

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