DE10352841B3 - Baking oven, comprises a cupboard, a number of heater plates which hold an oil heat carrier, and a carriage for the products to be baked - Google Patents

Baking oven, comprises a cupboard, a number of heater plates which hold an oil heat carrier, and a carriage for the products to be baked

Info

Publication number
DE10352841B3
DE10352841B3 DE2003152841 DE10352841A DE10352841B3 DE 10352841 B3 DE10352841 B3 DE 10352841B3 DE 2003152841 DE2003152841 DE 2003152841 DE 10352841 A DE10352841 A DE 10352841A DE 10352841 B3 DE10352841 B3 DE 10352841B3
Authority
DE
Germany
Prior art keywords
sheet metal
characterized
heating
edge strips
oven
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
DE2003152841
Other languages
German (de)
Inventor
Horst-Dieter Kukuk
Hans-Jürgen Mierach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Backofenbau Parchim GmbH
Original Assignee
BACKOFENBAU GMBH PARCHIM
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 BACKOFENBAU GMBH PARCHIM filed Critical BACKOFENBAU GMBH PARCHIM
Priority to DE2003152841 priority Critical patent/DE10352841B3/en
Application granted granted Critical
Publication of DE10352841B3 publication Critical patent/DE10352841B3/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A21BAKING; EDIBLE DOUGHS
    • A21BBAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
    • A21B1/00Bakers' ovens
    • A21B1/42Bakers' ovens characterised by the baking surfaces moving during the baking
    • A21B1/44Bakers' ovens characterised by the baking surfaces moving during the baking with surfaces rotating in a horizontal plane
    • AHUMAN NECESSITIES
    • A21BAKING; EDIBLE DOUGHS
    • A21BBAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
    • A21B1/00Bakers' ovens
    • A21B1/02Bakers' ovens characterised by the heating arrangements
    • A21B1/06Ovens heated by radiators
    • A21B1/10Ovens heated by radiators by radiators heated by fluids other than steam

Abstract

A baking oven, comprises a cupboard which can be locked, a number of heater plates (6) arranged on top of each other, which hold an oil heat carrier, and a carriage (8) for the product to be baked, with a number of surfaces (10). Each heating plate consists of two profiled metal sheets (15,16) which are joined along a spiral seam by welding. The angled outer wall consists of an upper profiled sheet edge strip (20) and a lower profiled sheet edge strip (21), which are welded together. The two edge strips overlap and have the same length. The strips are arc welded.

Description

  • The The invention relates to an oven according to the preamble of Claim 1 and a method according to the preamble of the claim 5th
  • such ovens are used in the food industry.
  • Such an oven is in the DE 89 04 998 U1 described. This oven is designed like a cabinet and therefore has a bottom wall, a ceiling wall, two side walls, a rear wall and a frontally arranged cabinet door, which together form a closed oven interior. On the rear wall there are several flat aligned and evenly spaced superposed heating plates of a heating system. These heating plates are arranged cantilevered or stored on support arms, which are also anchored in the rear wall.
  • In their width are the heating plates opposite the clear width dimension of the furnace interior so executed, that between the heating plates and the respective side wall over the whole height of the Furnace space extending free space remains. In the interior the oven is a mobile bakery car parked with its vertical supports in the lateral free spaces between the heating plates and the side walls and engages with its horizontal shelves fits between the heating plates. This is under every shelf the baking tray a heating plate of the oven arranged.
  • The Hotplates of the oven are over a heating circuit connected to an external boiler, the a heated one Heat transfer through promotes the heating plates. Such a hot plate is usually made of two against each other laid profile sheets formed on their contact surfaces in Sewed together welded are. The cavities between the welds form a Heating channel consisting of one, two or more Teilheizkanälen, which together the fuel oil flow within the heating plate divided into several parallel Teilheizströme. All partial heating channels have the same cross-section so that the heat distribution is even.
  • Produced is such a heating plate in the so-called blowing process, in which two smooth sheet metal plates in a similar manner by a resistance welding process welded together and those lying between the welds interspaces set within a mold under the pressure of a medium become. As a result, the gaps between the heating channels widen.
  • adversely Here is that the blowing process is a complex workshop technology requires and that because of the weld at the outer edges the heating plate remains a circumferential ridge. This bridge widened the distance between the outer Teilheizkanal and the side walls of the oven, so in this outer area the actually even heat distribution is interrupted.
  • From the DE 296 16 533 U1 Now a hot plate for such an oven has become known, which consists of two preformed profile sheets. This heating plate has on each side an outer Teilheizkanal whose cross-section is larger than the other Teilheizkanäle. This will transport more heat to the edge of the oven. In an alternative embodiment, the outer edge welding is angled relative to the Heizplattenebene, so that there is a different cross-sectional shape at the outer Heizteilkanal compared to all other Teilheizkanälen. This also means that more heat is transported to the edge area of the oven because the fuel oil flow is shifted further outwards.
  • Produced This hot plate is in the same time as the profiling the two sheet metal plates, an edge strip is folded, the at the one profiled sheet metal longer than the other profile sheet metal plate. In assembled condition Both edge strips of the two profile sheet metal plates are in the installation position aligned below, lie against each other and have the same common length. Here is this common length dimensioned so that there is enough space for a weld. Both profile sheet metal plates are on the usual bearing surfaces and on the edge strip by a conventional resistance welding method welded together.
  • This hot plate and the corresponding manufacturing process have disadvantages. Thus, the hot plate is very material intensive and therefore expensive because of the additional and insignificant for the heat supply edge strip. In addition, the two profile sheet metal plates are different in their dimensions and in their shape and must therefore be treated separately in the manufacturing process. This also makes the production more expensive. The manufacturing process is also complicated by the fact that the bearing surfaces of the two profiled sheet metal plates and the two adjoining edge strips must be welded with the same resistance welding process but in different fixtures. This is particularly laborious and time consuming because of the size and severity of the profiled sheet metal plates. Another disadvantage is that the edge strips nachfedern in the profiling and thus form an obtuse angle to the heating plate. Because of the different lengths of the two edges strip and because of the not always the same material properties of the profiled sheet metal plates, the edge strips feather differently for each heating plate, so that both superimposed profiled sheet metal plates no longer fit together properly. This requires rework or increased effort during assembly and subsequent welding.
  • Of the Invention is therefore based on the object, the use of materials a generic heating plate to reduce and simplify the production of the new heating plate.
  • The Device-side task is characterized by the characterizing features of the claim 1 and the method-side task is characterized by the characterizing Characteristics of claim 5 solved.
  • Appropriate Embodiments emerge from the subclaims 2 to 4 and the dependent claims 6 to 8th.
  • The new heating plate and the new manufacturing process eliminate the mentioned disadvantages of the prior art.
  • there the particular advantage is that the edge strips with the Bending obtained a very accurate position, the subsequent assembly and welding very simplistic.
  • The Invention is based on an embodiment be explained in more detail. To show:
  • 1 a vertical section through an oven without a baking tray,
  • 2 : the front view of the oven with an off-the-shelf baking cart and with the oven door open,
  • 3 : the top view of the new hotplate and
  • 4 : a cross section through part of the new heating plate.
  • After the 1 and 2 the oven is designed as a cabinet and therefore has a back wall 1 , two side walls 2 , a ceiling wall 3 and a bottom wall 4 , The frontage is over its entire dimensions through an oven door 5 locked. This results in a closed oven interior, which is characterized by a plurality of heating plates 6 is filled. In the area of the ceiling wall 3 and behind the back wall 1 There are storage spaces in which supply lines and control units are housed, which are the heating plates 6 and connect the open space with external utilities for heating and ventilating the furnace interior. As a heat carrier, a thermal oil is preferably used.
  • The heating plates 6 in the furnace interior are horizontally aligned and arranged in preferably the same vertical distances from each other. The heating plates have 6 Dimensions that are matched to the clear cross section of the furnace interior.
  • So corresponds the depth of the heating plate 6 the depth of the oven interior, while the width of the heating plate 6 is designed to a certain extent less than the width of the furnace interior. This gauge is sized to fit on both sides of all hotplates 6 and the respective side wall 2 a remains over the entire height of the furnace interior extending free space.
  • To their holder is every hot plate 6 on two similarly spaced heater plate carrier 7 stored, with the Heizplattenträger 7 self-supporting in the rear wall 1 are anchored in the oven and in their length over the entire depth of the oven interior and thus to the front edge of the heating plate 6 extend. It remains the expert depending on the application reserved, the heating plates 6 direct and self-supporting in the back wall 1 to anchor and thus the Heizplattenträger 7 save.
  • In the oven interior of the oven is a mobile bakery 8th with vertical supports 9 and with several horizontal shelves 10 parked for the baked goods. It has the bakery car 8th so many shelves 10 how the oven hotplates 6 has. This bakery car 8th is sized to fit with its vertical supports 9 in the lateral clearances between the heating plates 6 and the side walls 2 and with his daring shelves 10 in the spaces between adjacent heating plates 6 fits. So is in the retracted position of the back car 8th every shelf 10 of the baking cart 8th a heating plate 6 associated with the oven.
  • After 3 owns the heating plate 6 a heating channel via an inlet connection 11 and a return port 12 connected to the external boiler. This heating channel is over the entire width of the heating plate 6 arranged helically and consists of a first Heizteilkanal 13 and a second heating part channel 14 , which are both parallel to each other and together in the inlet connection 11 and in the return port 12 lead.
  • As the 4 shows, there is the heating plate 6 from an upper profile sheet metal plate 15 and from a lower profile sheet metal plate 16 , the surveys matched in profile 17 and reductions 18 exhibit. This push the opposite lowering 18 both profile sheet metal plates 15 and 16 together and form a helical seam 19 , which terminates pressure-tight. The course of this helical seam 19 arises from the 3 , The surveys 17 both profile sheet metal plates 15 . 16 form in a corresponding manner the Heizteilkanäle 13 and 14 out, whereby for all internal Heizteilkanäle 13 . 14 each gives an approximately lenticular cross-section. The cross section of the outer heating part channel 13 corresponds to the shape of a cut-off lens. This is the upper profile sheet metal plate 15 with an angled edge strip 20 equipped, which is directed downward, while the lower profile sheet metal plate 16 an angled edge strip 21 owns, which is directed upward. Both facing edge strips 20 . 21 are laterally offset so that they overlap and are in lateral contact with each other. These so joined edge strips 20 . 21 form on the two side edges of the heating plate 6 one continuous seam each 22 , which is also sealed pressure-tight.
  • The sizes of the cross sections of the two Heizteilkanäle 13 . 14 are coordinated so that the cross-section of the long sides of the heating plate 6 lying part of the first Heizteilkanals 13 smaller than the cross section of the adjacent part of the second Heizteilkanals 14 is executed.
  • The heating plate 6 after the 3 and 4 is made as follows:
    Two smooth sheet metal plates are successively cut to the same outer dimensions. Thereafter, each sheet metal plate is profiled on a forming device of a bending machine so that the final shapes of the surveys 17 and the reductions 18 arise. Thereafter, on each profile sheet metal plate 15 . 16 the edge strip 20 respectively. 21 one longitudinal side and then the edge strip 20 respectively. 21 the other and opposite longitudinal side folded. The clear dimension between the two opposite edge strips 20 the profile sheet metal plate 15 and the clear dimension between the two opposite edge strips 21 the profile sheet metal plate 16 is the same size. The two prefabricated profiled sheet metal plates 15 . 16 are initially aligned so that their margins 20 . 21 are directed towards each other. Then the two profile sheet metal plates 15 . 16 put together so that the facing edge strips 20 . 21 glide past each other and the opposite descents 18 come to the mutual investment. By an appropriate selection of the manufacturing tolerance in the clear dimension of the opposite edge strips 20 . 21 or by an oppositely directed deviation of the angle of the two associated edge strips 20 . 21 from the right angle, a tension between the two adjoining edge strips 20 . 21 are generated, the improved grip of both profile sheet metal plates 15 . 16 allows. This improves the handling of the joined profile sheet metal plates 15 . 16 during production.
  • The pre-assembled heating plate 6 is then along its helical seam 19 and welded at the edges of the two transverse sides in the electrical resistance welding process. Preferably, the seam welding is applied. Then the seam becomes 22 from the overlap of the two edge bands belonging together 20 . 21 on both sides of the heating plate 6 welded over the entire length by means of gas welding or electric arc welding. Both welding processes can be carried out at one location in one clamping.
  • 1
    rear wall
    2
    Side wall
    3
    ceiling wall
    4
    bottom wall
    5
    oven door
    6
    heating plate
    7
    Heizplattenträger
    8th
    Backgutwagen
    4
    vertical support
    10
    dare right shelf
    11
    inflow connection
    12
    Return connection
    13
    first Heizteilkanal
    14
    second Heizteilkanal
    15
    upper Profile sheet metal plate
    16
    lower Profile sheet metal plate
    17
    survey
    18
    lowering
    19
    Spiral-shaped interface
    20
    edge strips
    21
    edge strips
    22
    join

Claims (8)

  1. Oven with a heat transfer medium preferably thermo-oil, consisting of a closable cabinet with several superimposed and the heat carrier leading heating plates ( 6 ) and a retractable in the cabinet baking tray ( 8th ) with several stacking shelves ( 10 ) for the dough, where each hotplate ( 6 ) made of two profiled metal sheets ( 15 . 16 ) along a helical seam ( 19 ) and the edges are welded together and so Heizteilkanäle ( 13 . 14 ) and the Heizteilkanäle ( 13 ) on both longitudinal sides of the heating plate ( 6 ) one each to the plane of the heating plate ( 6 ) have an angled outer wall, characterized in that the angled outer wall of a marginal strip ( 20 ) of the upper profile sheet metal plate ( 15 ) and from a marginal strip ( 21 ) of the lower profile sheet metal plate ( 16 ), which are both facing each other and welded together.
  2. Oven according to claim 1, characterized in that the two edge strips ( 20 . 21 ) overlap each other.
  3. Oven according to claim 2, characterized in that the two edge strips ( 20 . 21 ) have an equal length.
  4. Baking oven according to claim 1, characterized in that the enclosed by the angled outer wall outer Heizteilkanal ( 13 ) has a smaller cross-section than the inwardly adjacent Heizteilkanal ( 14 ).
  5. Method for producing a heating plate for the thermal oil heating, in which two smooth sheet metal plates are cut to form profiled sheet metal plates ( 15 . 16 ) with surveys ( 17 ) and reductions ( 18 ) and both profile sheet metal plates ( 15 . 16 ) then mirrored together and at the adjacent subsidence ( 18 ) and are welded together at the peripheral edges, characterized in that the sheet metal plates are cut in the same size, on the two longitudinal sides of each profile sheet metal plate ( 15 . 16 ) one edge strip each ( 20 . 21 ) is folded in the same direction and the edge strips ( 20 ) of a profiled sheet metal plate ( 15 ) and the margins ( 21 ) of the other profile sheet metal plate ( 16 ) are aligned in the assembly to each other and welded together.
  6. A method according to claim 5, characterized in that the fold of the edge strips ( 20 . 21 ) takes place after the bending of the profiles.
  7. A method according to claim 5, characterized in that the welding of the adjacent depressions ( 18 ) and the welding of the edge strips ( 20 . 21 ) takes place in a single clamping.
  8. Method according to claim 7, characterized in that the edge strips ( 20 . 21 ) are welded with an arc.
DE2003152841 2003-11-10 2003-11-10 Baking oven, comprises a cupboard, a number of heater plates which hold an oil heat carrier, and a carriage for the products to be baked Active DE10352841B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003152841 DE10352841B3 (en) 2003-11-10 2003-11-10 Baking oven, comprises a cupboard, a number of heater plates which hold an oil heat carrier, and a carriage for the products to be baked

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003152841 DE10352841B3 (en) 2003-11-10 2003-11-10 Baking oven, comprises a cupboard, a number of heater plates which hold an oil heat carrier, and a carriage for the products to be baked

Publications (1)

Publication Number Publication Date
DE10352841B3 true DE10352841B3 (en) 2005-02-10

Family

ID=34042294

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003152841 Active DE10352841B3 (en) 2003-11-10 2003-11-10 Baking oven, comprises a cupboard, a number of heater plates which hold an oil heat carrier, and a carriage for the products to be baked

Country Status (1)

Country Link
DE (1) DE10352841B3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1685762A2 (en) * 2005-01-31 2006-08-02 FMC Technologies, Inc. Elevated temperature cooking system
NL1029641C2 (en) * 2005-07-28 2007-01-30 Kaak Johan H B Heating element for baking ovens.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8904998U1 (en) * 1989-04-20 1989-06-08 Franz Daub U. Soehne (Gmbh & Co), 2000 Hamburg, De
DE29616533U1 (en) * 1996-09-23 1998-01-22 Franz Daub U Soehne Gmbh & Co Oven with hot plates

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8904998U1 (en) * 1989-04-20 1989-06-08 Franz Daub U. Soehne (Gmbh & Co), 2000 Hamburg, De
DE29616533U1 (en) * 1996-09-23 1998-01-22 Franz Daub U Soehne Gmbh & Co Oven with hot plates

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1685762A2 (en) * 2005-01-31 2006-08-02 FMC Technologies, Inc. Elevated temperature cooking system
EP1685762A3 (en) * 2005-01-31 2008-04-16 FMC Technologies, Inc. Elevated temperature cooking system
NL1029641C2 (en) * 2005-07-28 2007-01-30 Kaak Johan H B Heating element for baking ovens.
WO2007013798A1 (en) * 2005-07-28 2007-02-01 Kaak, Johan, Hendrik, Bernard Heating element for baking ovens

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