JP2019002534A - Heat insulation device - Google Patents

Abstract

To provide a heat insulation device which enables easy maintenance while improving heat insulation performance.SOLUTION: A heat insulation device 1 provided at an outer wall 8 of a heating furnace 7 includes multiple high temperature side panels 10, multiple low temperature side panels 20, multiple seal members 30, and first covers 40. The low temperature side panels 20 are formed separately from the high temperature side panels 10 provided at the outer wall 8 and are provided at the opposite side of the heating furnace 7 when viewed from the high temperature side panels 10 in a state where each lower temperature side panel 20 is separated from each high temperature side panel 10. Each seal member 30 is provided between the high temperature side panel 10 and the low temperature side panel 20 and can deform in response to relative movement of the high temperature side panel 10 and the low temperature side panel 20. The seal member 30 can maintain air-tightness of a heat insulation chamber 100 which is formed between the high temperature side panel 10 and the low temperature side panel 20 and can be decompressed. Each first cover 40 is provided between the adjacent high temperature side panels 10 and covers the outer wall 8 exposed from a space between the adjacent high temperature side panels 10.SELECTED DRAWING: Figure 2

Description

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

  2. Description of the Related Art Conventionally, a heat insulating device that has a reduced pressure heat insulating chamber and suppresses heat transfer between a high temperature side and a low temperature side is 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.

JP 2014-95426 A

  In the heat insulating device described in Patent Document 1, by connecting the high temperature side panel and the low temperature side panel at a constant interval, the amount of deformation caused by the difference in thermal expansion due to the temperature difference between the high temperature side panel and the low temperature side panel is connected. It is divided for each part. However, when the amount of deformation due to the difference in thermal expansion increases, the deformation cannot be absorbed for each connected portion and is damaged. For this reason, there exists a possibility that the heat insulation performance which shows the degree of the movement amount of the heat from a heat source may fall. Moreover, in the heat insulation apparatus described in Patent Document 1, it is difficult to replace only one of the high temperature side panel or the low temperature side panel even if either the high temperature side panel or the low temperature side panel is damaged. Repair of the entire device is required.

  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 includes 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, for relative movement between the one high temperature side member and the one low temperature side member. Corresponding deformation is possible. The sealing member is formed between the one high temperature side member and the one low temperature side member and can maintain the airtightness of the one heat insulating chamber (100) that can be decompressed.
The first cover member is provided between adjacent high temperature side members or adjacent low temperature side members. A 1st cover member is provided so that the outer wall (8) of the heat source (7) exposed from between the adjacent high temperature side members may be covered.

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

Moreover, in the heat insulation apparatus of this invention, the 1st cover is provided between the adjacent high temperature side members or between the adjacent low temperature side members. When a plurality of heat insulation 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 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. The first cover is provided so as to cover the outer wall of the heat source exposed from the gap. Thereby, since the heat insulation apparatus of this invention can reduce that heat is discharge | released outside from the clearance gap between adjacent high temperature side members or between adjacent low temperature side members, it can improve heat insulation performance.
Thus, the heat insulating device of the present invention can easily replace the high temperature side member or the low temperature side member forming the heat insulating chamber when the heat insulating performance decreases due to a decrease in the airtightness of the heat insulating chamber, and is adjacent to the heat insulating device. 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 insulation performance can be improved.

It is sectional drawing of the heat insulation apparatus by one Embodiment. It is the II section enlarged view of FIG. It is the III-III sectional view taken on the line of FIG. It is sectional drawing of the heat insulation apparatus by one Embodiment, Comprising: It is sectional drawing of a state different from FIG. It is sectional drawing of the heat insulation apparatus by other embodiment. It is sectional drawing of the heat insulation apparatus by other embodiment.

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

(One embodiment)
The heat insulation apparatus by one Embodiment is demonstrated based on FIGS. The heat insulating device 1 according to an embodiment is used in a heating furnace 7 as a “heat source” for performing baking for hardening a resin for sealing a motor winding, drying a member, or the like. The heat insulating device 1 includes a plurality of high temperature side panels 10 as “a plurality of high temperature side members”, a plurality of low temperature side panels 20 as “a 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 pressing portion 50 as a plurality of “second cover members”. The heat insulating device 1 includes a plurality of heat insulating units 2 including a single high temperature side panel 10, a single low temperature side panel 20, a seal member 30, a sphere 35, and a positioning member 37. 1-4 are described so that the sealing member 30, the sphere 35, the positioning member 37, the first cover 40, and the pressing portion 50 may be relatively large in order to make the configuration of the heat insulating device 1 easy to understand. .

  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 from a metal having high heat resistance.

  The flat surface portion 11 is a flat plate-like 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 111 is provided so as to contact the outer wall surface 81.

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

  The low temperature side panel 20 is provided in a state of being separated from the high temperature side panel 10 on the low temperature side opposite to the outer wall 8 when viewed 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-like portion provided to face the flat surface portion 11 of the high temperature side panel 10. In one embodiment, the plane portion 21 is formed in a substantially square shape having substantially the same size as the plane portion 11. The plane portion 21 is provided such that one plane 211 faces the other plane 112 of the high temperature side panel 10. At this time, a gap 120 is formed between the one flat surface 211 and the end surface 121 of the edge 12 of the high temperature side panel 10 on the low temperature side panel 20 side. The flat surface portion 21 has a communication hole 210 that communicates one flat surface 211 side of the flat surface portion 21 with the other flat surface 112 side of the flat surface portion 21. The communication hole 210 communicates with a heat insulating chamber 100 described later.

  The passage forming part 22 is a cylindrical part provided on the other flat surface 212 of the flat surface part 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 annular shape in accordance with the shapes of the high temperature side panel 10 and the low temperature side panel 20. The seal member 30 is provided inside the annular edge 12 in the high temperature side panel 10. The seal member 30 includes 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 contact the other flat surface 112. A groove 310 is formed between the two contact surfaces 311. The groove 310 can be deformed when the high temperature side panel 10 moves relative to the seal member 30. Thereby, the contact state of 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 abutting portion 32 is formed so that the cross-sectional area decreases as the distance from the outer wall 8 increases so that heat transfer between the seal member 30 and the low temperature side panel 20 decreases.

  The seal member 30 is made of a material that can be deformed corresponding to the relative movement between the high temperature side panel 10 and the low temperature side panel 20, for example, silicone rubber. The seal member 30 forms a heat-insulating chamber 100 that can be decompressed together with the high temperature side panel 10 and the low temperature side panel 20. One heat insulation chamber 100 is provided in one heat insulation unit 2. That is, the heat insulating device 1 has a plurality of independent heat insulating chambers 100. The sealing 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 the spheres 35 per unit area in the heat insulating device 1 is set so as to be provided at a relatively large interval in a range that does not affect the sealing performance. In one embodiment, 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, as shown in FIG. The sphere 35 is formed so as to be able to contact 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 small area. The spherical body 35 maintains a state where 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-like members. One spherical body 35 is accommodated in each of the plurality of meshes 370 included in the positioning member 37. Thereby, 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 to be slightly larger than the size of the sphere 35. Thereby, even if the high temperature side panel 10 and the low temperature side panel 20 move relatively, the sphere 35 accommodated 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 positioned on the low temperature side panel 20 side. The first cover 40 is provided so as to contact the side surface 122 of the edge 12 of the high temperature side panel 10 included in each of the adjacent heat insulating units 2. Thereby, the 1st cover 40 can be urged | biased so that each high temperature side panel 10 of the adjacent heat insulation unit 2 may space apart.

The holding part 50 is provided on the side opposite to the outer wall 8 of the first cover 40. The holding part 50 includes 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 contact 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 formed 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 the second cover 51 and the plurality of contact members 53 provided in the adjacent heat insulating units 2.
The plurality of contact members 53 are provided to contact the other flat surface 212 of the low-temperature side panel 20 included in each of the adjacent heat insulation units 2. In one embodiment, the plurality of contact members 53 are provided so as to contact the portion of the low temperature side panel 20 where the seal member 30 is provided.
One end of each 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 a biasing force that biases the contact member 53 in the direction of the outer wall 8.
The support member 55 is provided on the opposite side of the heat insulation member 52 from 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 biasing force of the plurality of springs 54 becomes a force that biases the low temperature side panel 20 toward the high temperature side panel 10.

Next, the effect | action of the heat insulation apparatus 1 is demonstrated based on FIG.
The heat insulation apparatus 1 shown in FIG. 1 has shown the state when the temperature of the heating furnace 7 is comparatively low temperature. 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 adjacent heat insulating unit 2 in the gap 3 between the adjacent heat insulating units 2. ing. Thereby, 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 heat transmitted from the outer wall 8. When the high temperature side panel 10 expands, as shown in FIG. 4, the gap 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, the sealing 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. Thus, a plurality of independent heat insulation chambers 100 can be formed. Since the seal member 30 can be deformed in accordance with the relative movement between the high temperature side panel 10 and the low temperature side panel 20, the heat insulating chamber can be used even if the deformation amount varies depending on 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 being lowered. In addition, since the high temperature side panel 10 and the low temperature side panel 20 are provided separately, even if the heat insulation chamber 100 cannot be kept airtight due to a failure of the high temperature side panel 10 or the low temperature side panel 20, the heat insulation chamber 100. Either the high-temperature side panel 10 or the low-temperature side panel 20 that forms the can be easily replaced.

Moreover, in the heat insulation apparatus 1, the 1st cover 40 is provided between the high temperature side panels 10 adjacent. When the plurality of heat insulation chambers 100 are formed by the plurality of high temperature side panels 10 and the plurality of low temperature side panels 20, the 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 between the adjacent high temperature side panels 10. Thereby, since the heat insulation apparatus 1 can reduce that the heat | fever of the heating furnace 7 is discharge | released outside from the clearance gap 3, it can improve heat insulation performance.
As described above, the heat insulating device 1 according to the embodiment can easily replace the high temperature side panel 10 or the low temperature side panel 20 forming the heat insulating chamber 100 in which the airtightness is reduced, and also between the adjacent high temperature side panels 10. The heat release from the heating furnace 7 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. Thereby, even if the distance between the adjacent high temperature side panels 10 changes by 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 with thermal expansion, it can prevent that the 1st cover 40 falls out from the clearance gap 3. FIG. Therefore, the first cover 40 can also reliably cover the outer wall surface 81 of the heating furnace 7.

  The heat insulating device 1 includes a passage forming portion 22 that can communicate each of the heat insulating chambers 100 with the outside of the heat insulating device 1. Thereby, when one pressure of the heat insulation chamber 100 rises and the heat insulation performance cannot be maintained, the heat insulation performance of the heat insulation device 1 can be recovered by reducing the pressure of the heat insulation chamber 100 with a pump or the like. Therefore, the heat insulation apparatus 1 in which the high temperature side panel 10 and the low temperature side panel 20 are provided separately improves the heat insulation performance by replacing the high temperature side panel 10 or the low temperature side panel 20 in which a defect has occurred. Therefore, maintenance can be easily performed.

The heat insulating device 1 includes a pressing portion 50 having a second cover 51 and a heat insulating member 52 provided to cover the gap 3 formed between adjacent heat insulating units 2. Thereby, it is possible to prevent the operator of the heating furnace 7 from coming into contact with the first cover 40 that has become relatively high temperature due to the release of heat from the outer wall surface 81.
Further, the holding portion 50 prevents heat from being released from the first cover 40 by the second cover 51. Thereby, the thickness of the heat insulation member 52 provided on the opposite side 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. Thereby, since the adhesiveness of the high temperature side panel 10, the low temperature side panel 20, and the sealing member 30 increases, the airtightness of the heat insulation chamber 100 can be maintained reliably.

(Other embodiments)
In the above-described embodiment, the heat insulating device is configured to suppress the heat generated in the heating furnace having a relatively high temperature from moving from the high temperature side panel to the low temperature side panel. However, the field to which the heat insulating device is applied is not limited to this. It may be used so as to suppress the cold generated by the cold heat generation source having a relatively low temperature from moving 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 come into contact with the high temperature side panel of each of the adjacent heat insulating units. However, a 1st cover may be provided so that it may contact | abut to the low temperature side panel which each of the adjacent heat insulation units has.

  In the above-described 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 may not be flat. It may be formed in a curved surface shape. Further, the flat portion and the edge portion of the high temperature side panel and the flat 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, the sealing member is formed in a square annular shape in accordance with 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, the seal member is made of silicone rubber. The material forming the seal member is not limited to this. Any material that can be deformed corresponding to the relative movement between the high-temperature side panel and the low-temperature side panel and that can maintain the airtightness of the heat insulation chamber may be used.

  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 may not have a biasing force.

  In the above-described 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. There may not be a passage formation part.

  In the above-described embodiment, the heat insulating device includes the second cover provided so as to cover the gap formed between the adjacent heat insulating units and the pressing portion having the heat insulating material. There may not be a pressing part.

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

  In the above-described embodiment, the heat insulating device includes a plurality of spheres and positioning members. However, there may not be a plurality of spheres and positioning members. It is only necessary to maintain a state where the high temperature side panel and the low temperature side panel are separated from each other only by the seal member. Further, the shape of the positioning member is not limited to a member having a plurality of meshes.

  In the above-described embodiment, the first cover is provided between adjacent heat insulating devices. As shown in FIG. 5, the first cover 40 may not be provided 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 maintenance of the heating furnace 7, for example. Thereby, while having the same effect as 1st embodiment, the heat insulation apparatus 1 can serve as the outer wall of the heating furnace 7. FIG.

  As mentioned above, this invention is not limited to such embodiment, It can implement with a various form in the range which does not deviate from the summary.

DESCRIPTION OF SYMBOLS 1 ... Thermal insulation apparatus 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 ... Thermal insulation chamber

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;
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, for relative movement between the one high temperature side member and the one low temperature side member. Correspondingly deformable, a plurality of sealing members (30) capable of maintaining the hermeticity 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) which is 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. A first cover member (40) covering
Insulation device comprising.   2. The heat insulation according to claim 1, wherein the first cover member can bias 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. apparatus.   The said low temperature side member is a heat insulation apparatus of Claim 1 or 2 which has the channel | path formation part (22) which forms the channel | path (220) which can connect the said heat insulation chamber and the exterior.   Any of Claims 1-3 further provided with the 2nd cover member (50) provided in the opposite side to the said heat source of the said 1st cover member, and provided so that the opposite side to the said heat source of the said 1st cover member may be covered. The heat insulation apparatus as described in one.   The said 2nd cover member is a heat insulation apparatus of Claim 4 which has a heat insulating material (52).   The heat insulating device according to claim 4, wherein the second cover member is capable of pressing the low temperature side member toward the high temperature side member.

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