JP6881067B2 - Insulation device - Google Patents

Description

The present invention relates to a heat insulating device that suppresses heat transfer between a high temperature side and a low temperature side.

Conventionally, a heat insulating device having a decompressed heat insulating chamber and suppressing heat transfer between a high temperature side and a low temperature side has been known. For example, Patent Document 1 describes a heat insulating device including a high temperature side panel provided on the heat source side and a low temperature side panel capable of forming a plurality of heat insulating chambers between the high temperature side panel.

Japanese Unexamined Patent Publication No. 2014-95426

In the heat insulating device described in Patent Document 1, by connecting the high temperature side panel and the low temperature side panel at regular intervals, the amount of deformation caused by the thermal expansion difference due to the temperature difference between the high temperature side panel and the low temperature side panel is connected. It is divided according to the part where it is made. However, if the amount of deformation due to the difference in thermal expansion becomes large, the deformation cannot be completely absorbed for each connected portion and the damage is caused. Therefore, the heat insulating performance indicating the degree of heat transfer from the heat source may be deteriorated. Further, in the heat insulating device described in Patent Document 1, even if either the high temperature side panel or the low temperature side panel is damaged, it is difficult to replace only one of the high temperature side panel or the low temperature side panel, and heat insulation is provided. The entire device needs to be repaired.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a heat insulating device capable of improving heat insulating performance and easily performing maintenance.

The present invention is a heat insulating device that suppresses heat transfer between a high temperature side and a low temperature side, and is a plurality of high temperature side members (10), a plurality of low temperature side members (20), and a plurality of seal members (30). , And a first cover (40).
The high temperature side member is provided on the high temperature side.
The low temperature side member is formed separately from the high temperature side member, and is provided on the low temperature side while being separated from each of the plurality of high temperature side members.
The seal member is provided between one high temperature side member of the plurality of high temperature side members and one low temperature side member of the plurality of low temperature side members, and is provided for relative movement between one high temperature side member and one low temperature side member. Correspondingly deformable. The seal member can maintain the airtightness of one heat insulating chamber (100) formed between one high temperature side member and one low temperature side member and capable of reducing pressure.
The first cover member is provided between adjacent high temperature side members or between adjacent low temperature side members. The first cover member is provided so as to cover the outer wall (8) of the heat source (7) exposed from between the adjacent high temperature side members.
In the first aspect of the present invention, the first cover member can urge adjacent high temperature side members or adjacent low temperature side members so that adjacent high temperature side members or adjacent low temperature side members are separated from each other.
In the second aspect of the present invention, the second cover member (50) is further provided on the side opposite to the heat source of the first cover member and is provided so as to cover the side opposite to the heat source of the first cover member. The second cover member can press the low temperature side member toward the high temperature side member.

In the heat insulating device of the present invention, a seal member is provided between the high temperature side member and the low temperature side member while separating the high temperature side member of one of the plurality of high temperature side members and the low temperature side member of one of the plurality of low temperature side members. Thereby, a plurality of independent heat insulating chambers can be formed between the plurality of high temperature side members and the plurality of low temperature side members. Since the seal member can be deformed in response to the relative movement of one high temperature side member and one low temperature side member, the amount of deformation differs depending on the temperature difference between one high temperature side member and one low temperature side member. However, it is possible to prevent the airtightness of the heat insulating chamber from being lowered. Further, even if the airtightness of the one heat insulating chamber cannot be maintained, either one of the high temperature side members or the one low temperature side member forming the one heat insulating chamber can be easily replaced.

Further, in the heat insulating device of the present invention, a first cover is provided between adjacent high temperature side members or between adjacent low temperature side members. When a plurality of heat insulating chambers are formed by a plurality of high temperature side members and a plurality of low temperature side members, a high temperature side member and a low temperature side member are formed between adjacent high temperature side members or between adjacent low temperature side members. It is necessary to provide a plurality of gaps in consideration of the thermal expansion of. The first cover is provided so as to cover the outer wall of the heat source exposed from the gap. As a result, the heat insulating device of the present invention can reduce heat being released to the outside from the gap between the adjacent high temperature side members or the adjacent low temperature side members, so that the heat insulating performance can be improved.
As described above, in the heat insulating device of the present invention, when the heat insulating performance is lowered due to the decrease in the airtightness of the heat insulating chamber, the high temperature side member or the low temperature side member forming the heat insulating chamber can be easily replaced and adjacent to each other. The heat release from a plurality of gaps formed between the high temperature side members or between the adjacent low temperature side members can be reduced by the first cover, and the heat insulating performance can be improved.

It is sectional drawing of the heat insulation device by one Embodiment. It is an enlarged view of the part II of FIG. FIG. 3 is a cross-sectional view taken along the line III-III of FIG. It is a cross-sectional view of the heat insulating device according to one embodiment, and is a cross-sectional view of a state different from FIG. It is sectional drawing of the heat insulation device by another embodiment. It is sectional drawing of the heat insulation device by another embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(One Embodiment)
The heat insulating device according to one embodiment will be described with reference to FIGS. 1 to 4. The heat insulating device 1 according to one embodiment is used, for example, in a heating furnace 7 as a "heat source" for firing for baking a resin that seals a winding of a motor, drying a member, and the like. The heat insulating device 1 includes a plurality of high temperature side panels 10 as "plurality of high temperature side members", a plurality of low temperature side panels 20 as "plurality of low temperature side members", a plurality of seal members 30, a plurality of spheres 35, and a positioning member. 37, a first cover 40 as a plurality of "first cover members", and a holding portion 50 as a plurality of "second cover members" are provided. The heat insulating device 1 includes a plurality of heat insulating units 2 including one high temperature side panel 10, one low temperature side panel 20, a sealing member 30, a sphere 35, and a positioning member 37. In addition, in FIGS. 1 to 4, in order to make the configuration of the heat insulating device 1 easy to understand, the seal member 30, the sphere 35, the positioning member 37, the first cover 40, and the holding portion 50 are shown to be relatively large. ..

The high temperature side panel 10 is provided so as to cover the outer wall 8 of the heating furnace 7. The high temperature side panel 10 has a flat surface portion 11 and an edge portion 12. The flat surface portion 11 and the edge portion 12 are integrally formed of a metal having high heat resistance.

The flat surface portion 11 is a flat plate-shaped portion provided at a position facing the outer wall surface 81 of the outer wall 8. In one embodiment, the flat surface portion 11 is formed in a substantially square shape, and one flat surface portion 111 is provided so as to abut on the outer wall surface 81.

The edge portion 12 is provided on the other flat surface 112 on the outer edge of the flat surface portion 11 opposite to one flat surface 111. The edge portion 12 is formed so as to rise from the other plane 112 in a direction opposite to that of the outer wall 8. In one embodiment, the edge 12 is formed in a square ring, as shown in FIG.

The low temperature side panel 20 is provided on the low temperature side, which is opposite to the outer wall 8 when viewed from the high temperature side panel 10, in a state of being separated from the high temperature side panel 10. The low temperature side panel 20 is formed separately from the high temperature side panel 10. The low temperature side panel 20 has a flat surface portion 21 and a passage forming portion 22.

The flat surface portion 21 is a flat plate-shaped portion provided so as to face the flat surface portion 11 of the high temperature side panel 10. In one embodiment, the flat surface portion 21 is formed in a substantially square shape having substantially the same size as the flat surface portion 11. The flat surface portion 21 is provided so that one flat surface 211 faces the other flat surface 112 of the high temperature side panel 10. At this time, a gap 120 is formed between one flat surface 211 and the end surface 121 on the low temperature side panel 20 side of the edge portion 12 of the high temperature side panel 10. The flat surface portion 21 has a communication hole 210 that communicates one flat surface 211 side of the flat surface portion 21 and the other flat surface 112 side of the flat surface portion 21. The communication hole 210 communicates with the heat insulating chamber 100 described later.

The passage forming portion 22 is a tubular portion provided on the other flat surface 212 of the flat surface portion 21. The passage forming portion 22 is formed so as to extend from the other plane 212 in the direction opposite to the outer wall 8. The passage 220 included in the passage forming portion 22 communicates with the communication hole 210.

The seal member 30 is provided between the high temperature side panel 10 and the low temperature side panel 20. In one embodiment, as shown in FIG. 3, the seal member 30 is formed in a square ring shape in accordance with the shapes of the high temperature side panel 10 and the low temperature side panel 20. The sealing member 30 is provided inside the annular edge 12 on the high temperature side panel 10. The seal member 30 has a high temperature side contact portion 31 and a low temperature side contact portion 32.

The high temperature side contact portion 31 is in contact with the other flat surface 112 of the high temperature side panel 10. The high temperature side contact portion 31 has two contact surfaces 311 that come into contact with the other flat surface 112. A groove 310 is formed between the two contact surfaces 311. The groove 310 is deformable when the high temperature side panel 10 moves with respect to the seal member 30. As a result, the contact state between the two contact surfaces 311 and the other flat surface 102 is maintained.

The low temperature side contact portion 32 is in contact with one flat surface 211 of the low temperature side panel 20. The low temperature side contact portion 32 is formed so that the cross-sectional area decreases as the distance from the outer wall 8 decreases so that the heat transfer between the sealing member 30 and the low temperature side panel 20 decreases.

The sealing member 30 is made of a material that can be deformed in response to relative movement between the high temperature side panel 10 and the low temperature side panel 20, for example, silicone rubber. The seal member 30 together with the high temperature side panel 10 and the low temperature side panel 20 form a heat insulating chamber 100 capable of reducing the pressure. One heat insulating chamber 100 is provided in one heat insulating unit 2. That is, the heat insulating device 1 has a plurality of independent heat insulating chambers 100. The seal member 30 can maintain the airtightness of the heat insulating chamber 100.

A plurality of spheres 35 are provided in the heat insulating chamber 100. The number of spheres 35 provided per unit area in the heat insulating device 1 is set so as to be provided at relatively large intervals within a range that does not affect the sealing property or the like. In one embodiment, as shown in FIG. 3, nine spheres 35 are provided in one heat insulating chamber 100 formed by one high temperature side panel 10 and one low temperature side panel 20. The sphere 35 is formed so as to be able to come into contact with the other flat surface 112 of the high temperature side panel 10 and the one flat surface 211 of the low temperature side panel 20 in a relatively narrow area. The sphere 35 maintains a state in which the high temperature side panel 10 and the low temperature side panel 20 are separated from each other.

The positioning member 37 is provided so as to be spread over almost the entire area of the heat insulating chamber 100. As shown in FIG. 3, the positioning member 37 is formed in a mesh shape from a plurality of thin plate-shaped members. One sphere 35 is housed in each of the plurality of meshes 370 included in the positioning member 37. As a result, the positioning member 37 regulates the movement of the sphere 35 in the heat insulating chamber 100. The mesh 370 of the positioning member 37 is formed so that the size is slightly larger than the size of the sphere 35. As a result, even if the high temperature side panel 10 and the low temperature side panel 20 move relative to each other, the sphere 35 housed in the mesh 370 rotates so that the high temperature side panel 10 and the low temperature side panel 20 are separated from each other. It is possible to maintain.

The first cover 40 is provided in the gap 3 between the adjacent heat insulating units 2. As shown in FIGS. 1 and 2, the first cover 40 is provided so as to cover the outer wall surface 81 of the outer wall 8 exposed from between the adjacent heat insulating units 2.
The first cover 40 is formed in a shape that can be folded from an elastically deformable material. In one embodiment, as shown in FIGS. 1 and 2, the bent portion 401 of the first cover 40 is provided so as to be located on the low temperature side panel 20 side. The first cover 40 is provided so as to abut on the side surface 122 of the edge portion 12 of the high temperature side panel 10 of each of the adjacent heat insulating units 2. As a result, the first cover 40 can be urged so that the high temperature side panels 10 of the adjacent heat insulating units 2 are separated from each other.

The pressing portion 50 is provided on the side opposite to the outer wall 8 of the first cover 40. The pressing portion 50 has a second cover 51, a heat insulating member 52 as a "heat insulating material", a plurality of contact members 53, a plurality of springs 54, and a support member 55.
As shown in FIGS. 1, 2, and 3, the second cover 51 is provided so as to come into contact with each of the adjacent heat insulating units 2. Specifically, it is provided so as to cover the gap 3 formed between the adjacent heat insulating units 2. The gap 3 is provided to allow deformation as "relative movement between one high temperature side member and one low temperature side member" due to the temperature of the adjacent heat insulating units 2.
The heat insulating member 52 is made of a heat insulating material provided on the side opposite to the outer wall 8 of the second cover 51, for example, rock wool. As shown in FIGS. 1 and 2, the heat insulating member 52 is provided so as to cover a plurality of contact members 53 provided on the second cover 51 and the adjacent heat insulating unit 2.
The plurality of contact members 53 are provided so as to contact the other flat surface 212 of the low temperature side panel 20 of each of the adjacent heat insulating units 2. In one embodiment, the plurality of contact members 53 are provided so as to come into contact with the portion of the low temperature side panel 20 where the seal member 30 is provided.
One end of the plurality of springs 54 is supported by any one of the plurality of contact members 53. The other end is supported by the support member 55. The spring 54 has an urging force that urges the contact member 53 in the direction of the outer wall 8.
The support member 55 is provided on the side of the heat insulating member 52 opposite to the low temperature side panel 20. The support member 55 is fixed to a fixing member (not shown) while covering the heat insulating member 52. The support member 55 supports the plurality of springs 54 so that the urging force of the plurality of springs 54 is a force for urging the low temperature side panel 20 in the direction of the high temperature side panel 10.

Next, the operation of the heat insulating device 1 will be described with reference to FIGS. 1 and 4.
The heat insulating device 1 shown in FIG. 1 shows a state when the temperature of the heating furnace 7 is relatively low. When the temperature of the heating furnace 7 is relatively low, the first cover 40 abuts on the side surface 122 of the high temperature side panel 10 of each of the adjacent heat insulating units 2 in the gap 3 between the adjacent heat insulating units 2. ing. As a result, the first cover 40 covers the outer wall 8 exposed through the gap 3.

When the temperature of the heating furnace 7 rises, the high temperature side panel 10 expands due to the heat transferred from the outer wall 8. When the high temperature side panel 10 expands, as shown in FIG. 4, the interval between the gaps 3 becomes smaller than when the temperature of the heating furnace 7 is relatively low. At this time, the first cover 40 covers the outer wall 8 that is exposed through the gap 3, although it is folded and becomes smaller.

In the heat insulating device 1 according to the embodiment, a seal member 30 is provided between the high temperature side panel 10 and the low temperature side panel 20 while separating one of the plurality of high temperature side panels 10 and one of the plurality of low temperature side panels 20. Allows a plurality of independent insulation chambers 100 to be formed. Since the seal member 30 can be deformed in response to the relative movement between the high temperature side panel 10 and the low temperature side panel 20, the heat insulating chamber has a heat insulating chamber even if the amount of deformation differs due to the temperature difference between the high temperature side panel 10 and the low temperature side panel 20. It is possible to prevent the airtightness of 100 from decreasing. Further, since the high temperature side panel 10 and the low temperature side panel 20 are provided separately, even if the airtightness of the heat insulating chamber 100 cannot be maintained due to a defect in the high temperature side panel 10 or the low temperature side panel 20, the heat insulating chamber 100 Either the high temperature side panel 10 or the low temperature side panel 20 forming the above can be easily replaced.

Further, in the heat insulating device 1, the first cover 40 is provided between the adjacent high temperature side panels 10. When a plurality of heat insulating chambers 100 are formed by a plurality of high temperature side panels 10 and a plurality of low temperature side panels 20, thermal expansion of the high temperature side panel 10 and the low temperature side panel 20 is considered between the adjacent high temperature side panels 10. It is necessary to provide a plurality of gaps. The first cover 40 is provided so as to cover the outer wall surface 81 of the heating furnace 7 exposed from the gap 3 of the adjacent high temperature side panels 10. As a result, the heat insulating device 1 can reduce the heat of the heating furnace 7 being released to the outside from the gap 3, so that the heat insulating performance can be improved.
As described above, in the heat insulating device 1 according to the embodiment, the high temperature side panel 10 or the low temperature side panel 20 forming the heat insulating chamber 100 having reduced airtightness can be easily replaced, and between the adjacent high temperature side panels 10. The heat release of the heating furnace 7 from the above can be reduced by the first cover 40, and the heat insulation performance can be improved.

The first cover 40 is formed in a shape that can be folded from an elastically deformable material. As a result, even if the distance between the adjacent high temperature side panels 10 changes due to thermal expansion, the outer wall surface 81 of the heating furnace 7 can be reliably covered. Therefore, the heat insulating performance of the heat insulating device 1 can be further improved.

The first cover 40 can be urged so that the high temperature side panels 10 of the adjacent heat insulating units 2 are separated from each other. Thereby, even if the distance between the adjacent high temperature side panels 10 changes due to thermal expansion, the first cover 40 can be prevented from falling off from the gap 3. Therefore, the first cover 40 can surely cover the outer wall surface 81 of the heating furnace 7.

The heat insulating device 1 has a passage forming portion 22 capable of communicating each of the heat insulating chamber 100 with the outside of the heat insulating device 1. As a result, when the pressure of one of the heat insulating chambers 100 rises and the heat insulating performance cannot be maintained, the heat insulating performance of the heat insulating device 1 can be restored by depressurizing the heat insulating chamber 100 with a pump or the like. Therefore, the heat insulating device 1 in which the high temperature side panel 10 and the low temperature side panel 20 are separately provided improves the heat insulating performance by replacing the high temperature side panel 10 or the low temperature side panel 20 in which the defect has occurred. Maintenance can be easily performed.

The heat insulating device 1 includes a holding portion 50 having a second cover 51 and a heat insulating member 52 provided so as to cover a gap 3 formed between adjacent heat insulating units 2. As a result, it is possible to prevent the operator of the heating furnace 7 or the like from coming into contact with the first cover 40, which has become relatively hot due to the release of heat from the outer wall surface 81.
Further, the pressing portion 50 prevents heat from being released from the first cover 40 by the second cover 51. As a result, the thickness of the heat insulating member 52 provided on the side opposite to the outer wall 8 of the second cover 51 can be made relatively thin.

The heat insulating device 1 includes a pressing portion 50 capable of pressing the low temperature side panel 20 in the direction of the high temperature side panel 10. As a result, the degree of adhesion between the high temperature side panel 10 and the low temperature side panel 20 and the sealing member 30 is increased, so that the airtightness of the heat insulating chamber 100 can be reliably maintained.

(Other embodiments)
In the above-described embodiment, the heat insulating device suppresses the transfer of heat generated in the heating furnace, which has a relatively high temperature, from the high temperature side panel to the low temperature side panel. However, the field of application of the heat insulating device is not limited to this. It may be used to suppress the transfer of cold heat generated by a cold heat generation source having a relatively low temperature from the low temperature side panel to the high temperature side panel.

In the above-described embodiment, the first cover is provided so as to be in contact with the high temperature side panel of each of the adjacent heat insulating units. However, the first cover may be provided so as to abut the low temperature side panel of each of the adjacent heat insulating units.

In the above embodiment, the high temperature side panel and the low temperature side panel are formed in a flat plate shape. However, the high temperature side panel and the low temperature side panel do not have to be flat. It may be formed in a curved shape. Further, it is assumed that the flat surface portion and the edge portion of the high temperature side panel and the flat surface portion of the low temperature side panel are formed in a substantially square shape. These shapes are not limited to this.

In the above-described embodiment, it is assumed that the sealing member is formed in a square ring shape according to the shapes of the high temperature side panel and the low temperature side panel. However, the shape of the seal member is not limited to this. Further, it is assumed that the sealing member is made of silicone rubber. The material forming the sealing member is not limited to this. Any material may be used as long as it can be deformed in response to the relative movement between the high temperature side panel and the low temperature side panel and can maintain the airtightness of the heat insulating chamber.

In the above-described embodiment, the first cover can be urged so that adjacent heat insulating units are separated from each other. However, the first cover does not have to have an urging force.

In the above embodiment, the low temperature side panel has a passage forming portion capable of communicating the heat insulating chamber and the outside of the heat insulating device. The passage forming portion may not be provided.

In the above-described embodiment, the heat insulating device includes a second cover provided so as to cover a gap formed between adjacent heat insulating units and a holding portion having a heat insulating material. There may be no holding part.

In the above-described embodiment, the heat insulating device includes a spring that urges the contact member toward the outer wall. However, the method of urging the contact member is not limited to this. It may be pressed by a screw or urged by a fixed size pressing.

In the above-described embodiment, the heat insulating device includes a plurality of spheres and positioning members. However, the plurality of spheres and positioning members may not be present. It suffices if the high temperature side panel and the low temperature side panel can be maintained in a separated state only by the sealing member. Further, the shape of the positioning member is not limited to the member having a plurality of meshes.

In the above embodiment, the first cover is provided between the adjacent heat insulating devices. As shown in FIG. 5, it is not necessary to provide the first cover 40 at the end of the outer wall 8 of the heating furnace 7.

In the above-described embodiment, the heat insulating device is provided so as to cover the outer wall of the heating furnace. However, the position where the heat insulating device is provided is not limited to this.
An example is shown in FIG. In FIG. 6, the heat insulating device 1 is provided so as to close the opening 80 formed in the outer wall 8. The opening 80 is used, for example, for maintenance of the heating furnace 7. As a result, the same effect as that of the first embodiment can be obtained, and the heat insulating device 1 can also serve as the outer wall of the heating furnace 7.

As described above, the present invention is not limited to such an embodiment, and can be implemented in various embodiments without departing from the gist thereof.

1 ... Insulation device 7 ... Heating furnace (heat source)
8 ... Outer wall 10 ... High temperature side panel (high temperature side member)
20 ... Low temperature side panel (low temperature side member)
30 ... Seal member 40 ... Cover member 100 ... Insulation room

Claims (6)

A heat insulating device that suppresses heat transfer between the high temperature side and the low temperature side.
A plurality of high temperature side members (10) provided on the high temperature side,
A plurality of low temperature side members (20) formed separately from the high temperature side member and provided on the low temperature side while being separated from each of the plurality of high temperature side members.
It is provided between one high temperature side member of the plurality of the high temperature side members and one low temperature side member of the plurality of low temperature side members, and is provided for relative movement between the one high temperature side member and the one low temperature side member. A plurality of sealing members (30) that are deformable correspondingly and can maintain the airtightness of one heat insulating chamber (100) formed between the one high temperature side member and the one low temperature side member and capable of reducing pressure. )When,
The outer wall (8) of the heat source (7) provided between the adjacent high temperature side members or between the adjacent low temperature side members and exposed from between the adjacent high temperature side members or between the adjacent low temperature side members. ), And the first cover member (40)
Equipped with a,
The first cover member is a heat insulating device capable of urging the adjacent high temperature side member or the adjacent low temperature side member so that the adjacent high temperature side member or the adjacent low temperature side member is separated from each other. The heat insulation according to claim 1 , further comprising a second cover member (50) provided on the side of the first cover member opposite to the heat source and provided so as to cover the side of the first cover member opposite to the heat source. apparatus. The heat insulating device according to claim 2 , wherein the second cover member has a heat insulating material (52). The heat insulating device according to claim 2 or 3 , wherein the second cover member can press the low temperature side member toward the high temperature side member. A heat insulating device that suppresses heat transfer between the high temperature side and the low temperature side.
A plurality of high temperature side members (10) provided on the high temperature side,
A plurality of low temperature side members (20) formed separately from the high temperature side member and provided on the low temperature side while being separated from each of the plurality of high temperature side members.
It is provided between one high temperature side member of the plurality of the high temperature side members and one low temperature side member of the plurality of low temperature side members, and is provided for relative movement between the one high temperature side member and the one low temperature side member. A plurality of sealing members (30) that are deformable correspondingly and can maintain the airtightness of one heat insulating chamber (100) formed between the one high temperature side member and the one low temperature side member and capable of reducing pressure. )When,
The outer wall (8) of the heat source (7) provided between the adjacent high temperature side members or between the adjacent low temperature side members and exposed from between the adjacent high temperature side members or between the adjacent low temperature side members. ), And the first cover member (40)
A second cover member (50) provided on the side of the first cover member opposite to the heat source, and provided so as to cover the side of the first cover member opposite to the heat source.
Equipped with a,
The second cover member is a heat insulating device capable of pressing the low temperature side member toward the high temperature side member. The heat insulating device according to any one of claims 1 to 5, wherein the low temperature side member has a passage forming portion (22) forming a passage (220) capable of communicating the heat insulating chamber with the outside.

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