CN216745397U - Furnace body connection structure, furnace body constituent unit, and continuous heating furnace - Google Patents
Furnace body connection structure, furnace body constituent unit, and continuous heating furnace Download PDFInfo
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- CN216745397U CN216745397U CN202220229436.8U CN202220229436U CN216745397U CN 216745397 U CN216745397 U CN 216745397U CN 202220229436 U CN202220229436 U CN 202220229436U CN 216745397 U CN216745397 U CN 216745397U
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Abstract
The utility model provides a furnace body connection structure for connecting a plurality of furnace body constituent units, a furnace body constituent unit, and a continuous heating furnace, the furnace body connection structure comprising: a flange portion provided over the entire periphery of the outer peripheral edge of an end portion of the furnace body constituent unit in the furnace length direction; a fixing member that presses the flanges of the 2 connected furnace body constituent units in a direction to narrow the gap between the flanges in a state where the flanges are arranged to face each other, and connects and fixes the flanges; and a sealing member disposed between 2 of the flange portions, wherein the sealing member is compressed and deformed by pressing the flange portions with a fixing member to seal the flange portions over the entire circumference of the flange portions, wherein the furnace body connecting structure has a protruding portion protruding in the furnace length direction with a gap maintained between the flange portions facing each other, and the protruding portion has a height in the furnace length direction lower than that of the sealing member.
Description
Technical Field
The utility model relates to a furnace body connection structure, a furnace body constituent unit, and a continuous heating furnace.
Background
A continuous heating furnace such as a Roller Kiln (RHK: Roller Hearth Kiln) has a length of, for example, 30m to 60 m. In this way, a continuous heating furnace having a large furnace length is assembled by carrying a furnace body constituting unit or the like having a predetermined length (for example, 2m) into a factory and connecting them in the factory.
SUMMERY OF THE UTILITY MODEL
Problem to be solved by utility model
In this case, the following requirements are required to be satisfied in a furnace body connection structure for connecting adjacent furnace body constituent units to each other. The first requirement is that leakage of gas and heat inside and outside the furnace can be suppressed even if the flange has a curve, a concave-convex shape, or a rough surface. The second requirement is that the flanges are firmly connected to each other. The third requirement is that the seal member is not excessively pressed and damaged. The fourth requirement is heat resistance. The fifth requirement is easy assembly and disassembly and low cost.
Conventionally, a tab made of a hard material obtained by curing inorganic fibers has been used as a sealing material for a furnace body connection structure. However, since gas and heat leak occurs when the machining accuracy of the flange surface is low, such a furnace body connecting structure cannot satisfy the first requirement. In addition, when silicone rubber is used as a sealing member material for the furnace body connection structure, it is difficult to achieve both the second requirement and the third requirement in the furnace body connection structure.
Accordingly, an object of the present invention is to provide a furnace body connection structure that can suppress leakage of gas and heat inside and outside a furnace even if a flange has a curve, a projection and a roughness on the surface, can firmly connect the flanges to each other, does not break even if an excessive pressure is applied to a sealing member, has heat resistance, and is easy to assemble and disassemble and inexpensive.
Means for solving the problems
In order to solve the above problem, a furnace body connection structure according to a first aspect of the present invention is a furnace body connection structure (1) that connects a plurality of furnace body constituent units (11, 12, 13), the furnace body connection structure (1) including:
a flange portion (2) provided over the entire periphery of the outer peripheral edge of an end portion of the furnace body constituent unit in the furnace length direction (X);
a fixing member (3) that, in a state in which the flange portions (2) of the 2 furnace body constituent units that are connected are arranged so as to face each other, presses in a direction in which the distance between the flange portions is narrowed, thereby connecting and fixing the flange portions; and
a sealing member (4) disposed between 2 of the flange portions, wherein the sealing member is compressed and deformed by pressing the flange portions with a fixing member (3) to seal between the flange portions over the entire circumference of the flange portions,
the furnace body connection structure has protruding portions (21, 22) that protrude in the furnace length direction while maintaining a gap between the flange portions facing each other,
the height of the protruding portion in the furnace length direction is lower than the height of the sealing member in the furnace length direction.
In addition, a furnace body connecting structure according to a second aspect of the present invention is characterized in that,
the fixing component is a bolt (31) and a nut (32),
the flange part has a through hole (25) penetrating in the furnace length direction (X),
in a state where the bolts are inserted through the through holes of the flange portions (2) of the 2 furnace constituent units, nuts are screwed from screw tips of the bolts, thereby connecting and fixing the 2 flange portions.
Further, a furnace body connecting structure according to a third aspect of the present invention is characterized in that,
one of the flanges facing each other is fixed with 2 of the protruding portions, or both of the flanges facing each other are fixed with 1 of the protruding portions,
the 2 projections have the same height in the furnace length direction, and one of the projections is disposed inside the through hole in the width direction (Y) or the height direction (Z) of the furnace body constituent unit, and the other of the projections is disposed outside the through hole in the width direction (Y) or the height direction (Z).
In addition, a furnace body connecting structure according to a fourth aspect of the present invention is characterized in that,
the protruding portion has a linear structure extending in a width direction (Y) of the furnace body constituent unit or a height direction (Z) of the furnace body constituent unit.
In addition, a furnace body connecting structure according to a fifth aspect of the present invention is characterized in that,
the furnace body connection structure has positioning members (21, 23) which are arranged so as to sandwich the sealing member from the width direction or the height direction, and which abut against side surfaces of the sealing member to regulate movement of the sealing member (4) in the width direction or the height direction.
In addition, a furnace body connecting structure according to a sixth aspect of the present invention is characterized in that,
one of the 2 projections also serves as a part of the positioning member.
A furnace body constituent unit according to a seventh aspect of the present invention is characterized by including the furnace body connection structure (1) according to any one of the first to sixth aspects.
In addition, a continuous heating furnace according to an eighth aspect of the present invention is characterized in that,
the continuous heating furnace is connected with a plurality of furnace body constituting units of the seventh mode.
Effect of the utility model
According to the present invention, it is possible to provide a furnace body connection structure that can suppress leakage of gas and heat inside and outside a furnace even if a flange has a curve, a projection and a recess, or a rough surface, firmly connect the flanges to each other, does not break even if an excessive pressure is applied to a seal member, has heat resistance, and is easy and inexpensive to assemble and disassemble.
Drawings
Fig. 1 is a plan view illustrating a continuous heating furnace of the present invention.
Fig. 2 is a sectional view illustrating a furnace body connection structure of the present invention.
Fig. 3 is a diagram illustrating a furnace body connection structure before furnace body constituent units are connected.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings for describing the embodiments, the same components are denoted by the same reference numerals in principle, and the repetitive description thereof will be omitted as appropriate.
Fig. 1 is a plan view illustrating a continuous heating furnace of the present invention. Fig. 1 illustrates a continuous heating furnace 9 having a plurality of furnace body constituting units 11, 12, and 13 and a carrying-out unit 14 for carrying out a processing object from the heating furnace. The furnace body constituent units 11, 12, and 13 and the carrying-out unit 14 are arranged in this order in the furnace length direction (X direction), and adjacent furnace body constituent units are connected to each other by a furnace body connection structure (not shown). In the continuous heating furnace 9, the object to be processed is conveyed from the furnace body constituting unit 11 to the carrying-out unit 14, and is subjected to a predetermined process in each of the furnace body constituting units 11, 12, and 13. The continuous heating furnace 9 may include a carrying-in unit (not shown) for carrying the object to be processed into the heating furnace, another furnace body constituting unit, and the like.
Fig. 2 is a sectional view illustrating a furnace body connection structure of the present invention. Fig. 3 is a diagram illustrating a furnace body connection structure before furnace body constituent units are connected. In fig. 2 and 3, the vertical direction (X direction) is the furnace length direction, and the horizontal direction is the width direction (Y direction) of the furnace constituent unit or the height direction (Z direction) of the furnace constituent unit.
The furnace connection structure 1 connects a plurality of furnace constituent units 11, 12, 13 to each other. The furnace body connection structure 1 includes: a flange portion 2 provided over the entire periphery of the outer peripheral edge of the end portion of the furnace body constituent unit in the furnace length direction; a fixing member 3 that, in a state in which the flange portions 2 of the 2 furnace body constituent units to be connected are arranged so as to face each other, presses in a direction (X direction) in which the interval between the flange portions 2 is narrowed, thereby connecting and fixing the flange portions 2; and a sealing member 4 disposed between the 2 flange portions 2, wherein the sealing member 4 is compressed and deformed by pressing the flange portions 2 with the fixing member 3 to seal between the flange portions 2 over the entire circumference of the flange portions 2. Thus, even if the flange has a curve, a concave-convex shape, or a rough surface, that is, the accuracy of the flange surface is low, the sealing can be reliably performed, and the leakage of gas and heat inside and outside the furnace can be suppressed.
The flange 2 is, for example, an L-shaped angle or a channel connected to the can body 10 near the end in the furnace length direction of the furnace body constituent unit. Fig. 2 and 3 show a structure in which L-shaped angle steel is used for the flange portion 2. This makes it possible to provide the furnace connecting structure 1 at low cost.
The furnace body connection structure 1 has projections 21 and 22, and the projections 21 and 22 are provided to project in the furnace length direction while maintaining a gap between the flanges 2 facing each other. The protruding portions 21 and 22 may be both fixed to one of the flanges 2 facing each other, or may be fixed to 1 of each of the flanges 2 facing each other. Thus, even if the flange portion 2 is connected, excessive pressure is not applied to the seal member 4, and the seal member 4 is not broken.
The 2 projections 21 and 22 have the same height in the furnace length direction (H1), and one projection 21 is disposed inside the through hole 25 in the width direction (Y direction) or the height direction (Z direction) of the furnace body constituent unit, and the other projection 22 is disposed outside the through hole 25 in the width direction or the height direction of the furnace body constituent unit. Here, the fixation of the protruding portions 21 and 22 means that the protruding portions 21 and 22 are permanently integrated with the flange portion 2, for example, as welding, adhesion, screwing, or the like. This makes the surfaces of the opposed flanges 2 parallel to each other, and stabilizes the furnace body connection structure 1.
The projections 21 and 22 are linear structures extending in the width direction of the furnace constituent unit or in the height direction of the furnace constituent unit. The projections 21 and 22 may have discontinuous portions depending on the application. Even in the discontinuous portions of the protruding portions 21 and 22, the gaps in the portions are maintained by the surrounding protruding portions 21 and 22, and thus the seal member 4 is not broken by excessive pressure.
Further, the furnace body connection structure 1 includes: and positioning members 23 (and 21) disposed so as to sandwich the seal member 4 from the width direction or the height direction of the furnace body constituent unit, and abutting against the side surfaces of the seal member 4 to regulate the movement of the seal member 4 in the width direction or the height direction. The positioning member is disposed over the entire periphery of the flange portion 2, similarly to the seal member 4. This can suppress irregular deformation of the sealing member 4, and can suppress leakage of gas and heat inside and outside the furnace.
As shown in fig. 2 and 3, the positioning member 23 is disposed inside the furnace body constituent unit in the width direction (Y direction) or the height direction (Z direction) with respect to the sealing member 4. On the other hand, the positioning member 21 is disposed outside the sealing member 4 in the width direction (Y direction) or the height direction (Z direction) of the furnace constituent unit. As shown in fig. 2 and 3, the protruding portion 21 may also serve as a part of the positioning member, or the positioning member may be provided separately from the protruding portion 21. Accordingly, since the positioning member 23 can suppress the exposure of the sealing member 4 into the furnace, the deterioration of the sealing member 4 due to high temperature can be suppressed, and the heat resistance can be improved.
As shown in fig. 3, the flange portion 2 has a through hole 25 penetrating in the furnace length direction. In a state where the bolts 31 are inserted through the through holes 25 of the flange portions 2 of the 2 furnace constituent units, the 2 flange portions 2 are connected and fixed by screwing the nuts 32 from the screw tips of the bolts 31. In this example, the fixing member 3 is a bolt 31 and a nut 32. This provides a furnace body connection structure that is easy to assemble and disassemble and is inexpensive for the continuous heating furnace 9.
When the 2 flange portions 2 are connected and fixed, a washer 33 may be provided between the nut 32 and the flange portion 2. Further, a washer may be provided between the bolt 31 and the flange. This prevents the nuts 32 and bolts 31 from sinking into the flange 2, and suppresses loosening of the fixing member 3.
A plurality of through holes 25 are formed over the entire circumference of the outer peripheral edge of the end portion of the furnace body constituent unit in the furnace length direction, and 2 flange portions 2 are connected and fixed by the fixing member 3 at the portion where each through hole 25 is formed. This can further suppress leakage of gas and heat inside and outside the furnace.
As shown in fig. 3, in a state before the furnace body constituent units are connected, the height H1 in the furnace length direction of the projections 21 and 22 is lower than the height H2 in the furnace length direction of the sealing member 4 (H2 > H1). In a state where the 2 flange portions 2 are connected and fixed by the fixing member 3, the height of the sealing member 4 in the furnace length direction is the same as the height H1 of the projecting portions 21 and 22 in the furnace length direction. This improves the adhesion between the seal member 4 and the flange 2, and thus can further suppress leakage of gas and heat inside and outside the furnace.
According to the furnace body connection structure 1 of the present embodiment, even if the flange has a curve, a concave-convex shape, or a rough surface, leakage of gas and heat inside and outside the furnace can be suppressed, the flanges can be firmly connected to each other, the sealing member is not broken even if excessive pressure is applied thereto, and a furnace body connection structure having heat resistance, easy assembly and disassembly, and low cost is provided.
Description of the reference symbols
1 furnace body connecting structure
2 flange part
3 fixing parts
31 bolt
32 nut
33 gasket
4 sealing member
9 continuous heating furnace
11. 12, 13 furnace body constituent unit
21. 22 projection
The component is positioned 23.
Claims (8)
1. A furnace body connection structure (1) for connecting a plurality of furnace body constituting units (11, 12, 13) is characterized in that,
the furnace body connection structure is provided with:
a flange portion (2) provided over the entire periphery of the outer peripheral edge of an end portion of the furnace body constituent unit in the furnace length direction (X);
a fixing member (3) that, in a state in which the flange portions (2) of the 2 furnace body constituent units that are connected are arranged so as to face each other, presses in a direction that narrows the gap between the flange portions, thereby connecting and fixing the flange portions; and
a sealing member (4) disposed between 2 of the flange portions, wherein the sealing member is compressed and deformed by pressing the flange portions with the fixing member (3) to seal between the flange portions over the entire circumference of the flange portions,
the furnace body connecting structure has a protruding portion that protrudes in the furnace length direction while maintaining a gap between the flange portions facing each other,
the height of the protruding portion in the furnace length direction is lower than the height of the sealing member in the furnace length direction.
2. The furnace body connection structure according to claim 1,
the fixing component is a bolt (31) and a nut (32),
the flange portion has a through hole (25) penetrating in the furnace length direction (X),
in a state where the bolts are inserted through the through holes of the flange portions (2) of the 2 furnace constituent units, nuts are screwed from screw tips of the bolts, thereby connecting and fixing the 2 flange portions.
3. The furnace body connection structure according to claim 2,
one of the flanges facing each other is fixed with 2 of the protruding portions, or both of the flanges facing each other are fixed with 1 of the protruding portions,
the 2 projections have the same height in the furnace length direction, and one of the projections is disposed inside the through hole in the width direction (Y) or the height direction (Z) of the furnace body constituent unit, and the other of the projections is disposed outside the through hole in the width direction (Y) or the height direction (Z).
4. The furnace body connection structure according to claim 3,
the protruding portion has a linear structure extending in a width direction (Y) of the furnace body constituent unit or a height direction (Z) of the furnace body constituent unit.
5. The furnace body connection structure according to claim 4,
the furnace body connection structure has a positioning member that is disposed so as to sandwich the sealing member from the width direction or the height direction, and that abuts against a side surface of the sealing member to regulate movement of the sealing member (4) in the width direction or the height direction.
6. The furnace body connection structure according to claim 5,
one of the 2 projections also serves as a part of the positioning member.
7. A furnace body constituting unit is characterized in that,
the furnace body constituting unit is provided with the furnace body connection structure (1) according to any one of claims 1 to 6.
8. A continuous heating furnace is characterized in that,
the continuous heating furnace is connected with a plurality of furnace body constituting units according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220229436.8U CN216745397U (en) | 2022-01-27 | 2022-01-27 | Furnace body connection structure, furnace body constituent unit, and continuous heating furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220229436.8U CN216745397U (en) | 2022-01-27 | 2022-01-27 | Furnace body connection structure, furnace body constituent unit, and continuous heating furnace |
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| Publication Number | Publication Date |
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| CN216745397U true CN216745397U (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220229436.8U Active CN216745397U (en) | 2022-01-27 | 2022-01-27 | Furnace body connection structure, furnace body constituent unit, and continuous heating furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115875699A (en) * | 2022-11-30 | 2023-03-31 | 常熟市林茂机械设备有限公司 | Multi-furnace body connecting structure with anti-seismic performance |
-
2022
- 2022-01-27 CN CN202220229436.8U patent/CN216745397U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115875699A (en) * | 2022-11-30 | 2023-03-31 | 常熟市林茂机械设备有限公司 | Multi-furnace body connecting structure with anti-seismic performance |
| CN115875699B (en) * | 2022-11-30 | 2023-11-21 | 常熟市林茂机械设备有限公司 | Multi-furnace-body connecting structure with anti-seismic performance |
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