JP6289347B2 - Cooling system - Google Patents

Description

  The present invention relates to a cooling apparatus that cools a high-temperature member that can be at a high temperature, such as piping used in a plant such as a thermal power plant, a nuclear power plant, or a chemical plant.

  For example, piping used in a thermal power plant or the like is a metal cylinder member in a high-temperature and high-pressure environment because it has a function of transporting steam heated by a boiler to a steam turbine. When such a metal cylinder member is used for a long time in the above-mentioned environment, creep damage progresses to generate a creep void, and the creep void is connected to cause a crack, and finally breaks.

  In order to prevent such breakage, the degree of creep void growth is derived by analyzing the degree of growth of creep voids by periodic nondestructive inspection, and the remaining life of the metal cylinder member is evaluated (for example, Patent Document 1 or Patent Document 2). In general, since the metal cylindrical member has a higher risk of creep damage in the welded portion than the base material portion, the inspection location is mainly a welded portion.

  As a result of non-destructive inspection, if there is a member with a high degree of creep damage and the risk of creep damage is high before the next periodic inspection, replace the metal cylinder member, but before the next periodic inspection. When the risk of creep damage is low, it is common to take measures to reduce the risk of creep damage by lowering the operating temperature of the entire plant to lower the metal temperature of the metal cylinder member. However, there is a problem that lowering the operation temperature of the entire plant results in a decrease in the operation efficiency of the plant.

  For example, Patent Document 3 discloses that heat of a pipe is radiated by a heat radiating fin with respect to the pipe.

JP 2004-85347 A JP 2008-122345 A JP 2003-113989 A

  As shown in Patent Document 3, it is possible to cool a pipe with a heat radiating fin. However, when the pipe is thermally deformed and the influence of the heat deformation reaches the heat radiating fin, the cooling performance may be lowered.

  An object of the present invention is to solve the above-described problem, and to provide a cooling device capable of maintaining cooling performance even when a metal cylinder member in a high temperature environment is thermally deformed. To do.

  In order to achieve the above-described object, the cooling device of the present invention includes a base member provided in contact with a surface along a surface of a metal cylinder member in a high temperature environment, and a protrusion protruding from the surface of the base member. And a heat transfer holding means for holding heat transfer performance from the metal cylinder member to the base member.

  According to this cooling device, the cooling performance can be improved even when the metallic cylinder member in a high temperature environment is thermally deformed.

  In the cooling device of the present invention, the heat transfer holding means has an elastic member that presses the base member against the surface of the metal cylinder member.

  According to this cooling device, when the metal cylinder member is deformed due to high temperature, the state in which the base member is in contact with the surface of the metal cylinder member is maintained by the elastic member of the heat transfer holding means. As a result, heat transfer from the metal cylinder member to the base member can be maintained, and cooling performance can be maintained even when the metal cylinder member in a high temperature environment is thermally deformed. . Therefore, the metal temperature in the portion where the risk of creep damage is high can be lowered, and the risk of creep damage can be reduced.

  In the cooling device of the present invention, the heat transfer holding means includes a softening member that is provided between the base member and the metal cylinder member and softens as the temperature of the metal cylinder member increases. It is characterized by that.

  According to this cooling device, even if the metal cylinder member is deformed by a high temperature, the softening member of the heat transfer holding means softens as the temperature rises, so that the surface of the metal cylinder member and the inner surface of the base member The softening member maintains the thermal connection. As a result, heat transfer from the metal cylinder member to the base member can be maintained, and cooling performance can be maintained even when the metal cylinder member in a high temperature environment is thermally deformed. . Therefore, the metal temperature in the portion where the risk of creep damage is high can be lowered, and the risk of creep damage can be reduced.

  Moreover, in the cooling device of the present invention, the heat transfer holding means includes a deforming member that is provided between the base member and the metal cylinder member and deforms following the thermal deformation of the metal cylinder member. It is characterized by having.

  According to this cooling device, when the metal cylinder member is deformed due to a high temperature, the deformation member of the heat transfer holding means is deformed, so that the surface of the metal cylinder member and the inner surface of the base member are thermally connected. Is maintained by the deformable member. As a result, heat transfer from the metal cylinder member to the base member can be maintained, and cooling performance can be maintained even when the metal cylinder member in a high temperature environment is thermally deformed. . Therefore, the metal temperature in the portion where the risk of creep damage is high can be lowered, and the risk of creep damage can be reduced.

  In the cooling device of the present invention, the heat radiating member is formed as a plate material extending in the vertical direction, and a plurality of the plate materials are arranged in parallel in the horizontal direction.

  According to this cooling device, since the plate material of the heat radiating member extends in the vertical direction and is arranged in parallel in the horizontal direction, natural convection heat transfer is promoted, so that the cooling performance can be improved.

  In the cooling device of the present invention, the heat dissipation member is provided in a spiral shape along the central axis of the metal cylinder member.

  According to this cooling device, since the flow velocity distribution of the air flowing between the plate members of the heat radiating member is made uniform, the cooling performance can be improved.

  In the cooling device of the present invention, the heat radiating member is formed with a plurality of slits along the extending direction of the plate member.

  According to this cooling device, when the metal cylinder member in a high temperature environment is thermally deformed, the heat radiating member can be deformed following the slit, so the heat radiating member tightens a portion having a high risk of creep damage and compresses it. Can be prevented. As a result, it is possible to suppress a situation where a portion having a high creep damage risk is damaged.

  Further, in the cooling device of the present invention, a blower pipe disposed below the plate member of the heat radiating member and provided with an opening hole on a side or upper side of the hollow shape, and a blower for supplying air to the blower pipe, It has the ventilation mechanism provided, It is characterized by the above-mentioned.

  According to this cooling device, the air discharged from the opening hole of the blower pipe rises around the heat radiating member and between the plate members of the heat radiating member, thereby ventilating the surrounding space from below the base member and the heat radiating member. To do. As a result, heat transfer from the metal cylinder member to the base member can be maintained, and cooling performance can be maintained even when the metal cylinder member in a high temperature environment is thermally deformed. . Therefore, the metal temperature in the portion where the risk of creep damage is high can be lowered, and the risk of creep damage can be reduced.

  In the cooling device of the present invention, the air blowing mechanism includes a cover that is provided outside the heat radiating member and covers the periphery of the metal cylinder member, and the air duct is provided inside the cover. In addition, a ventilation hole is formed in the upper part of the cover.

  According to this cooling device, since the air blowing mechanism includes the cover, the flow of air can be guided, and the effect of maintaining heat transfer from the metal cylinder member to the base member by ventilation can be significantly obtained. Can do.

  In the cooling device of the present invention, the blower mechanism includes a hood that covers the ventilation hole of the cover.

  According to this cooling device, since the air blowing mechanism includes the hood, it is possible to prevent dust from entering the through hole of the cover.

  In the cooling device of the present invention, a header pipe that surrounds the outside of the metal cylinder member, a discharge nozzle that is disposed in the header pipe with a discharge port facing the metal cylinder member side, and air in the header pipe It has an air cooling mechanism provided with the air blower which supplies.

  According to this cooling device, the metal cylinder member is cooled by the air discharged from the discharge nozzle. As a result, the cooling performance for cooling the metal cylinder member can be improved. Therefore, the metal temperature in the portion where the risk of creep damage is high can be lowered, and the risk of creep damage can be reduced.

  In the cooling device of the present invention, at least the base member is disposed on the side of the air cooling mechanism on the side where the discharge port of the discharge nozzle faces.

  According to this cooling device, the cooling performance for cooling the metal cylinder member can be further improved.

  In order to achieve the above-described object, the cooling device of the present invention includes a header pipe that surrounds the outside of a metal cylinder member in a non-contact state with the surface of the metal cylinder member in a high temperature environment, and the metal cylinder. A discharge nozzle disposed in the header pipe with a discharge port facing the surface of the member, and a blower for supplying air to the header pipe.

  According to this cooling device, the metal cylinder member is cooled by the air discharged from the discharge nozzle of the header pipe of the air cooling mechanism colliding with the metal cylinder member. As a result, the cooling performance for cooling the metal cylinder member can be maintained. Therefore, the metal temperature in the portion where the risk of creep damage is high can be lowered, and the risk of creep damage can be reduced. Moreover, according to this cooling device, since the header tube surrounds the outside of the metal cylinder member in a non-contact state with the surface of the metal cylinder member, the metal cylinder member in a high temperature environment is thermally deformed. Even if it exists, in order to prevent the situation where a header pipe contacts a metal cylinder member, the cooling performance which cools a metal cylinder member can be maintained.

  In the cooling device of the present invention, a heat dissipation member provided between the header pipe and the metal cylinder member and protruding from the surface of the metal cylinder member is provided.

  According to this cooling device, since the heat transfer performance is improved by providing the heat dissipation member, the cooling performance can be improved. Moreover, since heat transferability is improved, the equipment cost can be reduced by suppressing the air flow rate in the air cooling mechanism.

  In the cooling device of the present invention, a flow rate adjusting unit provided in an air supply pipe connecting the header pipe and the blower, a flow rate of air supplied to the header pipe, or a temperature of the metal cylinder member is acquired. And a control unit that controls the flow rate adjusting unit according to the flow rate or the temperature.

  According to this cooling device, the cooling performance for cooling the metal cylinder member can be maintained.

  According to the present invention, the cooling performance can be maintained even when the metal cylinder member in a high temperature environment is thermally deformed.

FIG. 1 is a schematic configuration diagram of a metal cylinder member to which a cooling device according to an embodiment of the present invention is applied. FIG. 2 is a schematic configuration diagram of a metal cylinder member to which the cooling device according to the embodiment of the present invention is applied. FIG. 3 is a schematic configuration diagram of the cooling device according to the first embodiment of the present invention. FIG. 4 is a cross-sectional view taken along the line AA in FIG. FIG. 5 is a schematic configuration diagram of the cooling device according to the first embodiment of the present invention. FIG. 6 is a schematic configuration diagram of the cooling device according to the first embodiment of the present invention. FIG. 7 is a schematic configuration diagram of a cooling device according to Embodiment 2 of the present invention. 8 is a cross-sectional view taken along the line BB in FIG. FIG. 9 is a schematic configuration diagram of a cooling device according to Embodiment 2 of the present invention. FIG. 10 is a schematic configuration diagram of a cooling device according to Embodiment 2 of the present invention. FIG. 11 is a schematic configuration diagram of a cooling device according to Embodiment 3 of the present invention. FIG. 12 is a schematic configuration diagram of a cooling device according to Embodiment 4 of the present invention. FIG. 13 is a schematic configuration diagram of a cooling device according to Embodiment 5 of the present invention. FIG. 14 is a schematic configuration diagram of a cooling device according to Embodiment 6 of the present invention. FIG. 15 is a schematic configuration diagram of a cooling device according to Embodiment 6 of the present invention. FIG. 16 is a schematic configuration diagram of a cooling device according to Embodiment 6 of the present invention. FIG. 17 is a schematic configuration diagram of a cooling device according to Embodiment 7 of the present invention. FIG. 18 is a schematic configuration diagram of a cooling device according to Embodiment 8 of the present invention. FIG. 19 is a schematic configuration diagram of a cooling device according to Embodiment 9 of the present invention.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

  1 and 2 are schematic configuration diagrams of a metal cylinder member to which the cooling device according to the present embodiment is applied.

  The metal cylinder member 100 illustrated in FIGS. 1 and 2 is configured as a pipe used in a plant such as a thermal power plant, a nuclear power plant, or a chemical plant. The metal cylinder member 100 is supplied with a high-temperature and high-pressure fluid (for example, water vapor). That is, the metal cylinder member 100 is in a high temperature environment. The periphery of the metal cylinder member 100 is covered with a heat insulating material 101 in order to suppress the influence of temperature on the periphery. In addition, the metal cylinder member 100 may be a container in which high-temperature and high-pressure fluid is stored in addition to piping.

  As described above, when the metal cylindrical member 100 in a high temperature environment is used for a long time in a high temperature environment, the creep damage progresses to generate a creep void, and the creep void is connected to cause a crack. It will eventually break. In order to prevent such breakage, the degree of creep void growth is analyzed by periodic nondestructive inspection to derive the degree of creep damage for each metal cylinder member, and the remaining life of the metal cylinder member 100 is evaluated. Specifically, as shown in FIG. 2, the heat insulating material 101 covering the vicinity of the welded portion 102, which is a place where the risk of creep damage is high, is removed. In FIG. 2, the heat insulating material 101 covering the vicinity of the welded portion 102 provided in the circumferential direction of the metal cylinder member 100 that is a pipe is continuously removed in the circumferential direction so as to expose the welded portion 102 and the vicinity thereof. It shows the state that was done.

  And, as a result of nondestructive inspection, if the risk of creep damage is high until the next periodic inspection, the metal tube member is replaced, but the risk of creep damage is increased until the next periodic inspection. If there is a fear, the cooling device described below is applied.

[Embodiment 1]
FIG. 3 is a schematic configuration diagram of the cooling device according to the present embodiment. FIG. 4 is a cross-sectional view taken along the line AA in FIG. FIG. 5 is a schematic configuration diagram of the cooling device according to the present embodiment. FIG. 6 is a schematic configuration diagram of the cooling device according to the present embodiment.

  The cooling device 1 shown in FIGS. 3 to 6 is applied when the surface of the metal cylinder member 100 continues in a direction in which the horizontal direction H is the main direction. The direction having the horizontal direction H as the main direction refers to the horizontal direction H and a direction inclined by less than 45 degrees with respect to the horizontal direction H. 3 and 6 are arranged such that the central axis S extends in the horizontal direction H.

  As shown in FIGS. 3 and 4, the cooling device 1 includes a base member 2, a heat radiating member 3, and heat transfer holding means 4.

  The base member 2 is formed in a plate shape with metal, and the inner surface 2A that contacts the surface 100A of the metal cylinder member 100 so as to contact the surface along the surface 100A of the metal cylinder member 100 before being thermally deformed. However, it is formed following the shape of the surface 100 </ b> A of the metal cylinder member 100. In the present embodiment, as shown in FIG. 4, the base member 2 is a pipe made of a metal cylinder member 100, and the diameter (inner diameter) of the cylindrical inner surface 2A following the shape of the surface 100A of the pipe. Is formed to match the outer diameter of the surface 100A of the pipe. The base member 2 has a cylindrical shape divided in the radial direction (in this embodiment, divided into two), the flanges 2B provided at the respective divided ends are overlapped, and bolts 41 penetrating each flange 2B, And each divided | segmented by the nut 42 screwed together to the said volt | bolt 41 is couple | bonded.

  The heat radiating member 3 is provided so as to protrude from the surface 2 </ b> C of the base member 2. The heat dissipating member 3 is configured as a plate made of metal, and as shown in FIG. 3, the heat dissipating member 3 is provided extending in the vertical direction P (90 degrees intersecting the horizontal direction H) and arranged in parallel in the horizontal direction H. Yes. Moreover, the heat radiating member 3 is comprised as a board | plate material which consists of metals, and is arrange | positioned spirally along the central axis S of the metal cylinder member 100, as shown in FIG. Moreover, as shown in FIG. 6, the heat radiating member 3 is formed with a plurality of slits 3A along the extending direction of the plate material. The slit 3 </ b> A is formed from the protruding end of the heat radiating member 3 toward the surface 2 </ b> C side of the base member 2, and may or may not reach the surface 2 </ b> C of the base member 2.

  The heat radiating member 3 may be formed integrally or separately from the same material as the base member 2, or may be formed separately from a material different from the base member 2. Further, the heat radiating member 3 is not limited to a plate material, but may be a rod shape although it is not clearly shown in the drawing. Furthermore, although the heat radiating member 3 is not clearly shown in the drawing, the cross section may be hollow.

  The heat transfer holding means 4 holds heat transferability from the metal cylinder member 100 to the base member 2. As shown in FIG. 4, the heat transfer holding means 4 has a diameter of the cylindrical inner surface 2 </ b> A following the shape of the surface 100 </ b> A of the pipe that is the metal cylindrical member 100 before the base member 2 is thermally deformed ( (Inner diameter) is formed so as to match the outer diameter of the surface 100A of the pipe, and the base member 2 divides the cylindrical shape in the radial direction, and the flanges 2B provided at the respective divided ends And are divided by a bolt 41 penetrating each flange 2B and a nut 42 screwed into the bolt 41. That is, in the heat transfer holding means 4 here, the base member 2 is formed with an inner surface 2A following the shape of the surface 100A of the metal cylinder member 100 before being thermally deformed, and each flange 2B at the split end is formed. Since the connection is made by the bolt 41 and the nut 42, when the metal cylinder member 100 is deformed due to a high temperature, the state in contact with the surface 100A of the metal cylinder member 100 is maintained as a substantial interference fit. As a result, heat transfer from the metal cylinder member 100 to the base member 2 can be maintained, and the cooling performance is maintained even when the metal cylinder member 100 in a high temperature environment is thermally deformed. be able to. Therefore, the metal temperature in the portion where the risk of creep damage is high can be lowered, and the risk of creep damage can be reduced.

  Thus, the cooling device 1 of the present embodiment is provided on the base member 2 provided in contact with the surface along the surface 100A of the metal cylinder member 100 in a high temperature environment, and on the surface 2C of the base member 2. The metal cylinder member 100 in a high-temperature environment is provided by including the heat radiating member 3 provided to protrude and the heat transfer holding means 4 that holds the heat transfer property from the metal cylinder member 100 to the base member 2. Even if is thermally deformed, the cooling performance can be improved.

  Moreover, in the cooling device 1 of the present embodiment, the heat radiating member 3 is formed as a plate material extending in the vertical direction P, and a plurality of plate materials are arranged in parallel in the horizontal direction.

  According to this cooling device 1, the plate material of the heat radiating member 3 extends in the vertical direction P and is arranged in parallel in the horizontal direction, thereby promoting natural convection heat transfer and improving the cooling performance. .

  Further, in the cooling device 1 of the present embodiment, the heat radiating member 3 is provided in a spiral shape along the central axis S of the metal cylinder member 100.

  According to this cooling device 1, since the flow velocity distribution of the air flowing between the plate members of the heat radiating member 3 is made uniform, the cooling performance can be improved.

  Moreover, in the cooling device 1 of this embodiment, the heat radiating member 3 is formed with a plurality of slits 3A along the extending direction of the plate material.

  According to this cooling device 1, when the metal cylinder member 100 in a high temperature environment is thermally deformed, the heat radiating member 3 can be deformed following the slit 3A, so that the heat radiating member 3 has a high risk of creep damage. The situation where the compression force is applied by tightening the can be prevented. As a result, it is possible to suppress a situation where a portion having a high creep damage risk is damaged. The slit 3A has the same effect even if it is formed as a cut.

[Embodiment 2]
FIG. 7 is a schematic configuration diagram of the cooling device according to the present embodiment. 8 is a cross-sectional view taken along the line BB in FIG. FIG. 9 is a schematic configuration diagram of a cooling device according to the present embodiment. FIG. 10 is a schematic configuration diagram of a cooling device according to the present embodiment.

  The cooling device 1 shown in FIGS. 7 to 10 is applied when the surface of the metal cylinder member 100 continues in a direction having the vertical direction P as the main direction. The direction having the vertical direction P as the main direction refers to the vertical direction P and a direction inclined by less than 45 degrees with respect to the vertical direction P. 7 and 10 are arranged such that the central axis S extends in the vertical direction P. The metal cylinder member 100 shown in FIGS. In addition, the direction inclined 45 degrees with respect to the vertical direction P is the same as the direction inclined 45 degrees with respect to the horizontal direction H, and the cooling device 1 according to this embodiment or the first embodiment described above is applied. The

  As shown in FIGS. 7 to 9, the cooling device 1 includes a base member 2, a heat radiating member 3, and heat transfer holding means 4 (see FIG. 8).

  The base member 2 is formed in a plate shape with metal, and the inner surface 2A that contacts the surface 100A of the metal cylinder member 100 so as to contact the surface along the surface 100A of the metal cylinder member 100 before being thermally deformed. However, it is formed following the shape of the surface 100 </ b> A of the metal cylinder member 100. In the present embodiment, as shown in FIG. 8, the base member 2 is a pipe made of a metal cylinder member 100, and the diameter (inner diameter) of the cylindrical inner surface 2 </ b> A following the shape of the surface 100 </ b> A of this pipe. Is formed to match the outer diameter of the surface 100A of the pipe. The base member 2 has a cylindrical shape divided in the radial direction (in this embodiment, divided into two), the flanges 2B provided at the respective divided ends are overlapped, and bolts 41 penetrating each flange 2B, And each divided | segmented by the nut 42 screwed together to the said volt | bolt 41 is couple | bonded.

  The heat radiating member 3 is provided so as to protrude from the surface 2 </ b> C of the base member 2. The heat radiating member 3 is configured as a plate made of metal, and is provided so as to extend in the vertical direction P (90 degrees intersecting the horizontal direction H) as shown in FIGS. It is installed. Moreover, as shown in FIG. 10, the heat radiating member 3 is formed with a plurality of slits 3A along the extending direction of the plate material. The slit 3 </ b> A is formed from the protruding end of the heat radiating member 3 toward the surface 2 </ b> C side of the base member 2, and may or may not reach the surface 2 </ b> C of the base member 2.

  The heat radiating member 3 may be formed integrally or separately from the same material as the base member 2, or may be formed separately from a material different from the base member 2. Further, the heat radiating member 3 is not limited to a plate material, but may be a rod shape although it is not clearly shown in the drawing. Furthermore, although the heat radiating member 3 is not clearly shown in the drawing, the cross section may be hollow.

  The heat transfer holding means 4 holds heat transferability from the metal cylinder member 100 to the base member 2. As shown in FIG. 8, the heat transfer holding means 4 has a diameter of the cylindrical inner surface 2 </ b> A following the shape of the surface 100 </ b> A of the pipe that is the metal cylindrical member 100 before the base member 2 is thermally deformed ( (Inner diameter) is formed so as to match the outer diameter of the surface 100A of the pipe, and the base member 2 divides the cylindrical shape in the radial direction, and the flanges 2B provided at the respective divided ends And are divided by a bolt 41 penetrating each flange 2B and a nut 42 screwed into the bolt 41. That is, in the heat transfer holding means 4 here, the base member 2 is formed with an inner surface 2A following the shape of the surface 100A of the metal cylinder member 100 before being thermally deformed, and each flange 2B at the split end is formed. Since the connection is made by the bolt 41 and the nut 42, when the metal cylinder member 100 is deformed due to a high temperature, the state in contact with the surface 100A of the metal cylinder member 100 is maintained as a substantial interference fit. As a result, heat transfer from the metal cylinder member 100 to the base member 2 can be maintained, and the cooling performance is maintained even when the metal cylinder member 100 in a high temperature environment is thermally deformed. be able to. Therefore, the metal temperature in the portion where the risk of creep damage is high can be lowered, and the risk of creep damage can be reduced.

  Thus, the cooling device 1 of the present embodiment is provided on the base member 2 provided in contact with the surface along the surface 100A of the metal cylinder member 100 in a high temperature environment, and on the surface 2C of the base member 2. The metal cylinder member 100 in a high-temperature environment is provided by including the heat radiating member 3 provided to protrude and the heat transfer holding means 4 that holds the heat transfer property from the metal cylinder member 100 to the base member 2. Even if is thermally deformed, the cooling performance can be improved.

  Moreover, in the cooling device 1 of the present embodiment, the heat radiating member 3 is formed as a plate material extending in the vertical direction P, and a plurality of plate materials are arranged in parallel in the horizontal direction.

  According to this cooling device 1, the plate material of the heat radiating member 3 extends in the vertical direction P and is arranged in parallel in the horizontal direction, thereby promoting natural convection heat transfer and improving the cooling performance. .

  Moreover, in the cooling device 1 of this embodiment, the heat radiating member 3 is formed with a plurality of slits 3A along the extending direction of the plate material.

  According to the cooling device 1, when the heat radiating member 3 is deformed via the base member 2 due to thermal deformation of the metal cylinder member 100 in a high temperature environment, the slit 3 </ b> A suppresses deformation of the heat radiating member 3. To do. As a result, the cooling performance can be maintained even when the metallic cylinder member 100 in a high temperature environment is thermally deformed.

[Embodiment 3]
FIG. 11 is a schematic configuration diagram of a cooling device according to the present embodiment. In addition, this embodiment differs in the heat transfer holding | maintenance means 4 with respect to embodiment mentioned above, and the other structure is the same. Therefore, hereinafter, the heat transfer holding means 4 will be described, and other similar components will be denoted by the same reference numerals and description thereof will be omitted. 11 shows a modification of the embodiment shown in FIG. 4. However, the present invention is not limited to this, and may be a modification of the embodiment shown in other drawings.

  The heat transfer holding means 4 holds heat transferability from the metal cylinder member 100 to the base member 2. As shown in FIG. 11, the heat transfer holding means 4 has a surface of the metal cylinder member 100 so that the base member 2 contacts the surface along the surface 100 </ b> A of the metal cylinder member 100 before being thermally deformed. An inner surface 2 </ b> A that contacts 100 </ b> A is formed following the shape of the surface 100 </ b> A of the metal cylinder member 100. In the present embodiment, as shown in FIG. 8, the base member 2 is a pipe made of a metal cylinder member 100, and the diameter (inner diameter) of the cylindrical inner surface 2 </ b> A following the shape of the surface 100 </ b> A of this pipe. Is formed to match the outer diameter of the surface 100A of the pipe. The base member 2 has a cylindrical shape divided in the radial direction (in this embodiment, divided into two), the flanges 2B provided at the respective divided ends are overlapped, and bolts 41 penetrating each flange 2B, And each divided | segmented by the nut 42 screwed together to the said volt | bolt 41 is couple | bonded. Moreover, the heat transfer holding means 4 of this embodiment is provided with a spring 43 that is an elastic means between the head of the bolt 41 and the flange 2B. The spring 43 is a compression spring and presses the flange 2B between the head of the bolt 41 and the nut 42 in a direction in which the flanges 2B approach each other. Press. The spring 43 includes a coil spring and a leaf spring.

  According to such a cooling device 1, when the metal cylinder member 100 is deformed due to a high temperature, the base member 2 is in contact with the surface 100 </ b> A of the metal cylinder member 100 by the spring 43 of the heat transfer holding unit 4. Will be maintained. As a result, heat transfer from the metal cylinder member 100 to the base member 2 can be maintained, and the cooling performance is maintained even when the metal cylinder member 100 in a high temperature environment is thermally deformed. be able to. Therefore, the metal temperature in the portion where the risk of creep damage is high can be lowered, and the risk of creep damage can be reduced.

[Embodiment 4]
FIG. 12 is a schematic configuration diagram of a cooling device according to the present embodiment. In addition, this embodiment differs in the heat transfer holding | maintenance means 4 with respect to embodiment mentioned above, and the other structure is the same. Therefore, hereinafter, the heat transfer holding means 4 will be described, and other similar components will be denoted by the same reference numerals and description thereof will be omitted. 12 shows a modification of the embodiment shown in FIG. 3, but the present invention is not limited to this, and may be a modification of the embodiment shown in other figures.

  The heat transfer holding means 4 holds heat transferability from the metal cylinder member 100 to the base member 2. In the heat transfer holding means 4, a softening member 44 is filled between the surface 100 </ b> A of the metal cylinder member 100 and the inner surface 2 </ b> A of the base member 2. The softening member 44 softens as the temperature of the metal cylinder member 100 increases, and includes a metal material and a sprayed layer. Here, it is preferable that the metal material or the sprayed layer has a melting point obtained by adding about 100 ° C. or more and 200 ° C. or less to the fluid temperature inside the metal cylindrical member 100, for example, if the fluid temperature is 500 ° C. An aluminum alloy (melting point: 660 ° C.) and brass (melting point: 900 ° C.) can be used if the fluid temperature is 650 ° C.

  According to such a cooling device 1, even if the metal cylinder member 100 is deformed due to a high temperature, the softening member 44 of the heat transfer holding means 4 is softened as the temperature rises, so that the surface of the metal cylinder member 100 is The softening member 44 maintains the thermal connection between 100A and the inner surface 2A of the base member 2. As a result, heat transfer from the metal cylinder member 100 to the base member 2 can be maintained, and the cooling performance is maintained even when the metal cylinder member 100 in a high temperature environment is thermally deformed. be able to. Therefore, the metal temperature in the portion where the risk of creep damage is high can be lowered, and the risk of creep damage can be reduced.

[Embodiment 5]
FIG. 13 is a schematic configuration diagram of a cooling device according to the present embodiment. In addition, this embodiment differs in the heat transfer holding | maintenance means 4 with respect to embodiment mentioned above, and the other structure is the same. Therefore, hereinafter, the heat transfer holding means 4 will be described, and other similar components will be denoted by the same reference numerals and description thereof will be omitted. 13 shows a modification of the embodiment shown in FIG. 3, the present invention is not limited to this, and may be a modification of the embodiment shown in other figures.

  The heat transfer holding means 4 holds heat transferability from the metal cylinder member 100 to the base member 2. The heat transfer holding means 4 is provided with a deformation member 45 that deforms following the thermal deformation of the metal cylinder member 100 between the surface 100A of the metal cylinder member 100 and the inner surface 2A of the base member 2. . The deformable member 45 may be attached to the surface 100A of the metal cylinder member 100 or the inner surface 2A of the base member 2, and separately from the metal cylinder member 100 and the base member 2, the surface 100A of the metal cylinder member 100. And the inner surface 2 </ b> A of the base member 2. The deformable member 45 is lower in rigidity than the metal cylinder member 100 and the base member 2, and is preferably a plate-like member that can be deformed in the radial direction of the metal cylinder member 100 so that the deformable member 45 can be easily deformed. A shape that is curved or bent in the radial direction of the metallic cylinder member 100 is more preferable. Moreover, it is preferable that a low melting point metal is used for the deformation member 45 so that it is hard to be influenced by the fluid temperature inside the metal cylinder member 100. Here, the low melting point metal is preferably, for example, a melting point obtained by adding about 100 ° C. or more and 200 ° C. or less to the fluid temperature inside the metal cylindrical member 100. If the fluid temperature is 500 ° C., an aluminum alloy (Melting point: 660 ° C.) and brass (melting point: 900 ° C.) if the fluid temperature is 650 ° C.

  According to such a cooling device 1, when the metal cylinder member 100 is deformed due to a high temperature, the deformation member 45 of the heat transfer holding means 4 is deformed, so that the surface 100A and the base member of the metal cylinder member 100 are deformed. The deformable member 45 maintains the thermal connection with the inner surface 2A of the second member 2A. As a result, heat transfer from the metal cylinder member 100 to the base member 2 can be maintained, and the cooling performance is maintained even when the metal cylinder member 100 in a high temperature environment is thermally deformed. be able to. Therefore, the metal temperature in the portion where the risk of creep damage is high can be lowered, and the risk of creep damage can be reduced.

[Embodiment 6]
FIG. 14 is a schematic configuration diagram of a cooling device according to the present embodiment. FIG. 15 is a schematic configuration diagram of a cooling device according to the present embodiment. FIG. 16 is a schematic configuration diagram of a cooling device according to the present embodiment. In addition, this embodiment differs in having the air blowing mechanism 5 with respect to embodiment mentioned above, and another structure is the same. Therefore, hereinafter, the blower mechanism 5 will be described, and the same reference numerals will be given to other similar components, and description thereof will be omitted. 14, 15, and 16 are shown as modified examples of the embodiment shown in FIGS. 3, 4, and 7, the present invention is not limited to this, and the embodiments shown in other drawings are not limited thereto. It is good also as a modification.

  The blower mechanism 5 includes a cover 51, a blower pipe 52, a blower 53, an air supply pipe 54, and a hood 55.

  The cover 51 is provided outside the heat radiating member 3 so as to cover the periphery of the metal cylinder member 100 including the cooling device 1. The cover 51 is formed in a cylindrical shape that covers the periphery of the metal cylinder member 100, and a ventilation hole 51 </ b> A is provided through the upper portion thereof. The cover 51 is provided with a predetermined gap 51B with respect to the metal cylinder member 100 (the heat insulating material 101 in FIG. 14). The gap 51B is set so as to avoid a situation where the metal cylinder member 100 (or the heat insulating material 101) contacts the metal cylinder member 100 (or the heat insulating material 101) when the metal cylinder member 100 in a high temperature environment is thermally deformed.

  The air duct 52 is disposed outside the heat radiating member 3 and below the cooling device 1. The blower pipe 52 is disposed below the inside of the cover 51. The blower pipe 52 is formed in a hollow shape and is provided with an opening hole 52A penetrating sideways or upward.

  The blower 53 supplies air to the blower pipe 52 and is connected to the blower pipe 52 via an air supply pipe 54.

  The hood 55 is provided above the cover 51 and at a predetermined interval from the cover 51 so as to cover the ventilation hole 51A.

  In the blower mechanism 5, air is supplied from the blower 53 to the inside of the blower pipe 52 through the air supply pipe 54, and the air is discharged sideways or upward from the opening hole 52 </ b> A. The air discharged from the opening hole 52 </ b> A of the blower pipe 52 rises inside the cover 51 and is discharged from the ventilation hole 51 </ b> A to the outside of the cover 51.

  Note that the cover 51 and the hood 55 need not be provided. In this case, the opening hole 52A of the blower pipe 52 is provided upward.

  Incidentally, in FIG. 16, the metal cylinder member 100 is arranged so that the central axis S extends in the vertical direction P. In this case, the blower pipe 52 is formed in an annular shape that covers the periphery of the metal cylinder member 100 outside the heat radiating member 3 and below the cooling device 1.

  According to such a cooling device 1, the air discharged from the opening hole 52 </ b> A of the blower pipe 52 rises around the heat radiating member 3 and between the plate members of the heat radiating member 3, whereby the base member 2 and the heat radiating member 3. Ventilate the surrounding space from below. As a result, heat transfer from the metal cylinder member 100 to the base member 2 can be maintained, and the cooling performance is maintained even when the metal cylinder member 100 in a high temperature environment is thermally deformed. be able to. Therefore, the metal temperature in the portion where the risk of creep damage is high can be lowered, and the risk of creep damage can be reduced.

  Moreover, in this cooling device 1, since the ventilation mechanism 5 is provided with the cover 51, the flow of air can be guided and the effect of maintaining the heat transfer property from the metal cylinder member 100 to the base member 2 by ventilation. Can be obtained remarkably.

  Further, in the cooling device 1, the air blowing mechanism 5 includes the hood 55, so that dust can be prevented from entering the ventilation holes 51 </ b> A of the cover 51.

  Note that the blower mechanism 5 is preferably applied to the cooling device 1 in which the heat radiating member 3 is a plate extending in the vertical direction so that air flows appropriately along the heat radiating member 3 from below to above.

[Embodiment 7]
FIG. 17 is a schematic configuration diagram of a cooling device according to the present embodiment. In addition, this embodiment differs in having the air cooling mechanism 6 with respect to embodiment mentioned above, and another structure is the same. Therefore, in the following, the air cooling mechanism 6 will be described, and the same reference numerals will be given to other similar components, and description thereof will be omitted. Moreover, in FIG. 17, although shown as a modification of embodiment shown in FIG. 3, it is not limited to this, It is good also as a modification of embodiment shown in another figure.

  The air cooling mechanism 6 includes a header pipe 61, a discharge nozzle 62, a blower 63, an air supply pipe 64, a flow rate adjusting unit 65, a pressure detecting unit 66, a header pipe temperature detecting unit 67, and a metal cylinder member temperature detecting unit. 68 and a control unit 69.

  The header pipe 61 is provided in an annular shape so as to surround the outside of the metal cylinder member 100 including the cooling device 1 outside the heat radiating member 3. The header pipe 61 is formed in a hollow shape. Although not clearly shown in the drawing, the header pipe 61 is located outside the heat radiating member 3 and includes the cooling device 1 and is in non-contact with the metal cylinder member 100 and is not attached to the metal cylinder member 100 or other members. Supported by the support member.

  The discharge nozzle 62 is disposed in the header pipe 61 with the discharge port facing the metal cylinder member 100 side.

  The blower 63 supplies air to the header pipe 61 and is connected to the header pipe 61 via an air supply pipe 64.

  The flow rate adjusting unit 65 is provided in the air supply pipe 64 and adjusts the flow rate of air reaching the header pipe 61 through the air supply pipe 64. The flow rate adjustment unit 65 is configured by a flow rate adjustment valve.

  The pressure detector 66 detects the pressure inside the header pipe 61.

  The header pipe temperature detection unit 67 detects the temperature inside the header pipe 61.

  The metal cylinder member temperature detection unit 68 detects the temperature of the surface 100 </ b> A of the metal cylinder member 100.

  The control unit 69 includes an arithmetic processing function such as a CPU (Central Processing Unit), a ROM (Read 0nly Memory), and a RAM (Random Access Memory), and a storage function. The control unit 69 controls driving of the blower 63. Further, the control unit 69 calculates the difference between the external atmospheric pressure and the pressure inside the header pipe 61 from the pressure inside the header pipe 61 detected by the pressure detection unit 66. Further, the control unit 69 calculates the flow rate of air supplied to the header pipe 61 based on the temperature inside the header pipe 61 detected by the header pipe temperature detection unit 67 and the pressure difference calculated previously. . Based on the calculated flow rate, the control unit 69 causes the flow rate of the air supplied to the header pipe 61 to be a flow rate of air that is discharged from the discharge nozzle 62 and cools the metal cylinder member 100. As described above, the flow rate adjusting unit 65 can be controlled. Further, the control unit 69 cools the metal cylinder member 100 discharged from the discharge nozzle 62 based on the temperature of the surface 100A of the metal cylinder member 100 detected by the metal cylinder member temperature detection unit 68. It is also possible to control the flow rate adjustment unit 65 so that the required air flow rate is obtained.

  According to such a cooling device 1, the header pipe 61 that surrounds the outside of the metal cylinder member 100, the discharge nozzle 62 that is disposed in the header pipe 61 with the discharge port facing the metal cylinder member 100 side, and the header pipe By having the air cooling mechanism 6 provided with the blower 63 that supplies air to 61, the metal cylinder member 100 is cooled by the air discharged from the discharge nozzle 62. As a result, the cooling performance for cooling the metal cylinder member 100 can be improved. Therefore, the metal temperature in the portion where the risk of creep damage is high can be lowered, and the risk of creep damage can be reduced.

  Further, in the cooling device 1 of the present embodiment, the flow rate adjusting unit 65 and the flow rate of air supplied to the header pipe 61 or the temperature of the metal cylinder member 100 are acquired, and the flow rate adjusting unit 65 according to the flow rate or temperature. It is preferable to include a control unit 69 that controls the above.

  According to the cooling device 1, the cooling performance for cooling the metal cylinder member 100 can be maintained.

  Moreover, in the cooling device 1 of this embodiment, as shown in FIG. 17, it is preferable to arrange | position at least the base member 2 in the side to which the discharge port of the discharge nozzle 62 of the air cooling mechanism 6 faces. At least the base member 2 means only the base member 2 or the base member 2 and the heat radiating member 3. That is, only the base member 2 or the base member 2 and the heat radiating member 3 are removed on the side where the discharge port of the discharge nozzle 62 of the air cooling mechanism 6 faces. In FIG. 17, the base member 2 is implemented as a perforated plate provided with a plurality of through portions 2D. In addition, it is preferable that the welding part 102 which is a part with a high risk of creep damage is exposed in the form from which only the base member 2 or the base member 2 and the heat radiating member 3 are removed.

  According to the cooling device 1, the cooling performance for cooling the metal cylinder member 100 can be further improved.

[Embodiment 8]
FIG. 18 is a schematic configuration diagram of a cooling device according to the present embodiment. In addition, although this embodiment has the air cooling mechanism 6 of Embodiment 7 mentioned above, it does not have the base member 2, the heat radiating member 3, and the heat transfer holding means 4. FIG. FIG. 18 shows an embodiment in which the air cooling mechanism 6 is provided in the metal cylinder member 100 in which the central axis S is arranged with the horizontal direction H as the main direction. However, the present invention is not limited to this. The air cooling mechanism 6 may be applied to the metal cylinder member 100 in which S is arranged with the vertical direction P as the main direction.

  As shown in FIG. 18, the cooling device 10 of the present embodiment includes a header pipe 61 that surrounds the outside of the metal cylinder member 100 in a non-contact state with the surface 100A of the metal cylinder member 100 in a high temperature environment, and a metal A discharge nozzle 62 disposed in the header pipe 61 with a discharge port facing the surface 100A of the tubular member 100 and a blower 63 for supplying air to the header pipe 61 are provided.

  According to the cooling device 10, the metal cylinder member 100 is cooled by the air discharged from the discharge nozzle 62 of the header pipe 61 of the air cooling mechanism 6 colliding with the metal cylinder member 100. As a result, the cooling performance for cooling the metal cylinder member 100 can be maintained. Therefore, the metal temperature in the portion where the risk of creep damage is high can be lowered, and the risk of creep damage can be reduced. Moreover, according to the cooling device 10, the header tube 61 surrounds the outside of the metal cylinder member 100 in a non-contact state with the surface 100A of the metal cylinder member 100, so that the metal cylinder member in a high temperature environment is also provided. Even in a case where the metal pipe member 100 is thermally deformed, the cooling performance for cooling the metal tube member 100 can be maintained in order to prevent the header tube 61 from coming into contact with the metal tube member 100.

  Further, in the cooling device 10 of the present embodiment, the flow rate adjusting unit 65 and the flow rate of the air supplied to the header pipe 61 or the temperature of the metal cylinder member 100 are acquired, and the flow rate adjusting unit 65 according to the flow rate or temperature. It is preferable to include a control unit 69 that controls the above.

  According to the cooling device 10, the cooling performance for cooling the metal cylinder member 100 can be maintained.

[Embodiment 9]
FIG. 19 is a schematic configuration diagram of a cooling device according to the present embodiment. In addition, this embodiment differs in having the heat radiating member 70 with respect to Embodiment 8 mentioned above, and the other structure is the same. Therefore, in the following, the heat radiating member 70 will be described, and other similar components will be denoted by the same reference numerals and description thereof will be omitted. Further, FIG. 19 shows an embodiment in which the air cooling mechanism 6 is provided in the metal cylinder member 100 in which the central axis S is arranged with the horizontal direction H as the main direction, but the present invention is not limited to this. The air cooling mechanism 6 may be applied to the metal cylinder member 100 in which S is arranged with the vertical direction P as the main direction.

  In the cooling device 10 of the present embodiment, as shown in FIG. 19, the heat dissipation member 70 is provided between the header pipe 61 and the metal cylinder member 100 so as to protrude from the surface 100 </ b> A of the metal cylinder member 100. Yes.

  The heat radiating member 70 may be formed integrally or separately from the same material as the metal cylinder member 100, or may be formed separately from a material different from the metal cylinder member 100. Moreover, the heat radiating member 70 is not limited to a plate material, but is not clearly shown in the drawing, but may have a rod shape. Furthermore, although the heat radiating member 70 is not clearly shown in the drawing, the cross section may be hollow. Further, although not shown in the drawing, the heat radiating member 70 may be provided so as to extend along the central axis S, and a plurality of the heat radiating members 70 may be provided in the circumferential direction of the metal cylinder member 100.

  According to such a cooling device 10, since the heat transfer performance is improved by providing the heat radiating member 70, the cooling performance can be improved. Moreover, since heat transferability improves, the installation cost can be reduced by suppressing the air flow rate in the air cooling mechanism 6.

  Further, in the cooling device 10 of the present embodiment, the heat radiating member 70 may be configured as a plate material made of metal, and may be spirally disposed along the central axis S of the metal cylinder member 100.

  According to the cooling device 10, when the metal cylinder member 100 is deformed due to a high temperature, the spiral heat dissipation member 70 is maintained in contact with the surface 100 </ b> A of the metal cylinder member 100 as a substantially interference fit. become. As a result, heat transfer from the metal cylinder member 100 to the base member 2 can be maintained, and the cooling performance is maintained even when the metal cylinder member 100 in a high temperature environment is thermally deformed. be able to. Therefore, the metal temperature in the portion where the risk of creep damage is high can be lowered, and the risk of creep damage can be reduced.

DESCRIPTION OF SYMBOLS 1,10 Cooling device 2 Base member 2A Inner surface 2B Flange 2C Surface 2D Penetration part 3 Heat radiating member 3A Slit 4 Heat transfer holding means 41 Bolt 42 Nut 43 Spring (elastic member)
44 Softening member 45 Deformation member 5 Blower mechanism 51 Cover 51A Ventilation hole 51B Clearance 52 Blower pipe 52A Open hole 53 Blower 54 Air supply pipe 55 Hood 6 Air cooling mechanism 61 Header pipe 62 Discharge nozzle 63 Blower 64 Air supply pipe 65 Flow rate adjustment part 66 Pressure detection Reference numeral 67: Header pipe temperature detection part 68: Metal cylinder member temperature detection part 69: Control part 70: Heat dissipation member 100: Metal cylinder member 100A Surface 101: Thermal insulation material 102: Welding part H: Horizontal direction P: Vertical direction S: Central axis

Claims (14)

A base member provided in contact with the surface along the surface of the metal cylinder member in a high temperature environment;
A heat dissipating member provided protruding from the surface of the base member;
Heat transfer holding means for holding heat transferability from the metal cylinder member to the base member;
With
The heat transfer holding means is provided between the base member and the metal cylinder member, and the plate-like member is deformed following the thermal deformation of the metal cylinder member. cooling device, characterized in that it comprises a deformable member which is curved or bent in the extending direction of the central axis of the metallic tubular member for radially.   The cooling device according to claim 1, wherein the heat transfer holding unit includes an elastic member that presses the base member against a surface of the metal cylinder member. When the surface of the metal cylinder member is continuously arranged in a direction having a horizontal direction as a main direction, the heat dissipation member is formed as a plate material extending in a radial direction of the metal cylinder member , and the plate material The cooling device according to claim 1, wherein a plurality of the cooling pipes are arranged side by side in the extending direction of the central axis of the metal cylinder member . When the surface of the metal cylinder member continues in a direction having a vertical direction as a main direction, the heat dissipation member is formed as a plate material extending in a radial direction centering on a central axis of the metal cylinder member , and 3. The cooling device according to claim 1, wherein a plurality of the plate members are arranged side by side in a circumferential direction centering on a central axis of the metal cylinder member .   The cooling device according to claim 1 or 2, wherein the heat radiating member is provided in a spiral shape along a central axis of the metal cylinder member. The cooling device according to any one of claims 3 to 5, wherein the heat radiating member has a plurality of slits formed along an extending direction. Claims, characterized in that it comprises a blower mechanism comprising a blowing pipe lateral or upward into the opening hole of the hollow shape disposed under side of the heat radiating member is provided, and a blower for supplying air to the blast tube Item 7. The cooling device according to any one of Items 1 to 6 . The blower mechanism includes a cover that is provided outside the heat radiating member and covers the periphery of the metal cylinder member. The blower pipe is provided inside the cover, and a ventilation hole is provided above the cover. The cooling device according to claim 7 , wherein the cooling device is formed. The cooling device according to claim 8 , wherein the blower mechanism includes a hood that covers the ventilation hole of the cover. An air cooling comprising: a header pipe that surrounds the outside of the metal cylinder member; a discharge nozzle that is disposed in the header pipe with a discharge port facing the metal cylinder member; and a blower that supplies air to the header pipe It has a mechanism, The cooling device as described in any one of Claims 1-6 characterized by the above-mentioned. The cooling device according to claim 10 , wherein at least the base member is disposed on a side of the air cooling mechanism on which the discharge port of the discharge nozzle faces. A header pipe that surrounds the outside of the metal cylinder member in a non-contact state on the surface of the metal cylinder member under a high temperature environment;
A discharge nozzle disposed in the header pipe with a discharge port facing the surface of the metal cylinder member;
A blower for supplying air to the header tube;
A cooling device comprising: The cooling device according to claim 12 , further comprising a heat dissipating member provided between the header pipe and the metal cylinder member so as to protrude from the surface of the metal cylinder member. A flow rate adjusting unit provided in an air supply pipe connecting the header pipe and the blower;
A control unit that acquires a flow rate of air supplied to the header pipe or a temperature of the metal cylinder member and controls the flow rate adjustment unit according to the flow rate or the temperature;
The cooling device according to any one of claims 10 to 13 , wherein the cooling device is provided.

Images