JP7518675B2 - Support structures, heat dissipation equipment - Google Patents

Description

The present invention relates to a support structure and a heat dissipation device.

In power plants or chemical plants, the support structures that directly support pipes and other objects are supported by the building's framework via embedded metal fittings that are set when the building's concrete is poured, or via post-cast metal fittings that are set after the building is completed.

When the object to be supported is a high-temperature pipe, there are known examples of attempts to reduce the temperature of the support structure from the viewpoint of the operational performance of the vibration isolation device of the support structure, i.e., from the viewpoint of the operating conditions of the hydraulic oil used in the oil snubber in the vibration isolation device.

Special Publication No. 1-50796

In recent years, for example, in turbine plants, efforts have been made to improve turbine efficiency by increasing the temperature of the turbine inlet steam or gas. In such cases, there are parts of the turbine plant's piping where the fluid temperature becomes higher than originally planned.

In such areas, as the temperature conditions for the support structures rise, the strength of the support structures that they previously had may no longer be sufficient under the new temperature conditions, or there may be insufficient design margins, making it necessary to increase the size of the support structures, for example. In turbine plants, for example, the amount of support structures is enormous, and if they need to be replaced, major measures will be required, which will have a major impact on both costs and construction time.

Therefore, the present invention aims to make it possible to accommodate higher operating temperature conditions without requiring major changes to the support structure.

In order to achieve the above-mentioned object, the heat dissipation device of the present invention is a heat dissipation device that is capable of responding to higher temperature conditions of a fluid within a supported object in a support structure having a metal fitting attached to a structure and a support member that receives a load from the supported object and transmits the load to the metal fitting, and is characterized in having: two flat-plate-shaped split direct mounting members, each of which is formed with a first recess that can fit into the support member and a contact surface that is the surface of the first recess, a direct mounting member that is detachably attached to the support member so as to sandwich the support member with the first recess of each of the split direct mounting members; two flat-plate-shaped heat dissipation members that are detachably attached to the direct mounting member from both sides of the direct mounting member by sandwiching the direct mounting member; and a contact member that is a thermal resistance reduction element provided between each of the two heat dissipation members and the direct mounting member .

The present invention makes it possible to accommodate higher operating temperature conditions without requiring major changes to the support structure.

FIG. 2 is a side view showing the configuration of the support structure according to the first embodiment. 4 is a cross-sectional view taken along line II-II of FIG. 3, illustrating the configuration of a heat dissipation unit of the heat dissipation device according to the first embodiment. 3 is a cross-sectional view taken along line III-III of FIG. 2, illustrating the configuration of a heat dissipation unit of the heat dissipation device according to the first embodiment. FIG. 2 is a front view showing a direct mounting member for a heat dissipation unit of the heat dissipation device according to the first embodiment; 2 is a front view showing a heat dissipation plate of the heat dissipation unit of the heat dissipation device according to the first embodiment; FIG. FIG. 11 is a side view showing a configuration of a heat dissipation device according to a second embodiment. 7 is a cross-sectional view taken along line VII-VII of FIG. 6, illustrating the configuration of a heat dissipation unit of a heat dissipation device according to a second embodiment. 10A to 10C are perspective views showing a process of attaching the heat dissipation device according to the second embodiment.

The following describes the support structure, heat dissipation device, and method for dealing with high temperatures in a supported object according to an embodiment of the present invention, with reference to the drawings. Here, identical or similar parts are given common reference numerals, and duplicate descriptions are omitted.

[First embodiment]
FIG. 1 is a side view showing the configuration of a support structure according to a first embodiment.

The support structure 100 receives a load from a support object 1, such as a pipe, and supports the support object 1. In other words, it transmits the load received from the support object 1 to a structure 3, such as a building concrete.

The support structure 100 has a support member 110 and a heat dissipation device 120.

The support member 110 is a so-called strength member that receives a load from a support object 1, such as piping or equipment, and transmits this load to the structure 3.

In the following, the support member 110 will be described as being made of a single piece of steel, but is not limited to this. For example, support structures including objects in the form of constant hangers or spring hangers with springs, container-like objects that support from below, and even objects that do not directly transmit load but instead absorb and consume energy themselves, such as vibration control devices with oil snubbers or vibration isolation devices with vibration isolation rubber, can also be treated as support members 110.

The support member 110 has a restraint portion 111, an extension member 112, and a metal fitting 113.

The restraint section 111 connects the support object 1 and the extension member 112. As a result, the support member 110 transfers heat from the support object 1 to the extension member 112. Note that, instead of the configuration described below, the restraint section 111 may restrain the extension member 112 instead of restraining the support object 1. Also, the extension member 112 may connect directly to the support object without going through the restraint section 111.

The extension member 112 is a strength member that extends from the position of the support object 1 to the position of the structure 3, and one end of the extension member 112 is connected to the metal fitting 113 by a welded portion 113c. The extension member 112 transmits the reaction force of the support object 1, which is restrained by the restraint portion 111, to the metal fitting 113.

In the following, the extension member 112 is shown as being cylindrical with a substantially rectangular cross section, but is not limited to this and may be cylindrical with other shapes. Alternatively, it may be, for example, a steel beam such as an H-shaped beam, an I-shaped beam, or a channel. Furthermore, it may be a combination of these.

The metal fittings 113 transmit the reaction force from the support object 1 transmitted by the extension member 112 to the structure 3. When the structure 3 is reinforced concrete, the metal fittings 113 take the form of embedded metal fittings or post-cast metal fittings. When embedded metal fittings or post-cast metal fittings, the metal fittings 113 have a flat plate 113a that is placed on the surface of the reinforced concrete and connects to the extension member 112, and multiple legs 113b that are attached to the flat plate 113a and embedded in the reinforced concrete. When the structure 3 is a steel frame structure, the metal fittings 113 take the form of a flat plate that is attached directly to the steel frame.

The heat dissipation device 120 has three heat dissipation units 120a. Each heat dissipation unit 120a is attached to the extension member 112 at intervals from each other in the longitudinal direction of the extension member 112.

Note that in FIG. 1, the heat dissipation device 120 has three heat dissipation units 120a as an example, but this is not limited thereto, and the number may be two or less, or four or more.

In this embodiment, since the extension member 112 is the target 150 for temperature reduction, it is preferable that the longitudinal position of the extension member 112 to which the heat dissipation unit 120a is attached is close to the restraint section 111 in order to ensure a wide temperature reduction area of the extension member 112.

Fig. 2 is a cross-sectional view taken along line II-II in Fig. 3 showing the configuration of the heat dissipation unit 120a of the support structure 100 according to the first embodiment, and Fig. 3 is a cross-sectional view taken along line III-III in Fig. 2. Fig. 4 is a front view showing a direct mounting member 121 of the heat dissipation unit 120a, and Fig. 5 is a front view showing a heat dissipation member 122.

Each heat dissipation unit 120a has a direct mounting member 121, two heat dissipation members 122, and two contact members 123.

The direct attachment member 121 is a portion that is directly attached to the extension member 112, and has two divided direct attachment members 121a. As shown in FIG. 4, each divided direct attachment member 121a has a contact surface 121b (FIG. 4) that is a recessed surface that can fit into the extension member 112. The contact surface 121b is formed in a direction perpendicular to both sides of the divided direct attachment member 121a. In other words, the contact surface 121b is a portion of the thickness of the direct attachment member 121.

In addition, at least two connection holes 121c are formed in each divided direct attachment member 121a. As in this example, when the contact surface 121b of the direct attachment member 121 is a recess that can fit with the extension member 112, it is preferable that the thermal expansion coefficient of the direct attachment member 121 is approximately the same as that of the extension member 112. In addition, when the direct attachment member is made of austenitic stainless steel and the direct attachment member is made of steel with a smaller thermal expansion coefficient, the direct attachment member 121 and the extension member 112 are arranged to ensure a clearance between the contact surface 121b and the extension member 112 at room temperature so that they are in close contact at the high temperature conditions in which the support object 1 is used.

The heat dissipation members 122 are attached to the direct mounting member 121 from both sides of the direct mounting member 121, sandwiching the direct mounting member 121, and are parts that dissipate heat from the direct mounting member 121 to the outside air. The heat dissipation members 122 are in close contact with most of one surface of the direct mounting member 121.

The heat dissipation member 122 has two divided heat dissipation members 122a. As shown in FIG. 5, each divided heat dissipation member 122a has a contact portion 122b, which is a recess that can fit with the extension member 112. Also, each divided heat dissipation member 122a has two connection holes 122c. Note that FIG. 5 shows an example in which each divided heat dissipation member 122a has a contact portion 122b, which is a recess that can fit with the extension member 112, but it is not necessarily required that they are formed to be in close contact with the extension member 112.

At least two connection holes 122c are formed in each of the divided heat dissipation members 122a that sandwich the divided direct mounting member 121a. When the heat dissipation unit 120a is in an assembled state, the connection holes 122c overlap with at least two connection holes 121c formed in the divided direct mounting member 121a. Bolts 125a (Fig. 2) pass through each connection hole 121c and connection hole 122c, and nuts 125b (Fig. 2) can be used to tighten the direct mounting member 121 and the two heat dissipation members 122 that sandwich it from both sides.

The split direct attachment members 121a and split heat dissipation members 122a are assembled so that their orientations are offset by 90 degrees from each other. As a result, the two split direct attachment members 121a and the two split heat dissipation members 122a are joined together.

The adhesion member 123 is a thermal resistance reducing element that is sandwiched between the direct attachment member 121 and the two heat dissipation members 122 to fill the gap between them and ensure heat transfer from the direct attachment member 121 to the two heat dissipation members 122. The adhesion member 123 can be, for example, one or more films of a soft metal such as copper or aluminum. As a thermal resistance reducing element, a flexible solid or liquid is preferable. Anything that functions as a thermal resistance reducing element, such as oil for high-temperature use, can also be used.

The adhesion members 123 are interposed between the direct mounting member 121 and the respective heat dissipation members 122, and are tightened with bolts 125a and nuts 125b to more closely adhere to the respective surfaces of the direct mounting member 121 and the heat dissipation member 122, ensuring the transfer of heat from the direct mounting member 121 to the heat dissipation member 122.

The contact member 123 may be provided between different components along the heat transfer path, other than between the direct attachment member 121 and the two heat dissipation members 122, for example, between the contact portion 122b of the divided heat dissipation member 122a and the extension member 112.

The area of the surface portion of the heat dissipation member 122 that is in contact with the outside air, i.e., the heat dissipation area, is sufficient to provide the amount of heat dissipation expected from the heat dissipation device 120, i.e., the amount of heat dissipation that reduces the temperature of the support member 110 to the reduced target temperature. Note that the amount of heat dissipation in the heat dissipation member 122 may be reduced by taking into account the amount of heat dissipation in other parts of the heat dissipation device 120. It may also be an area that allows for a margin over the calculated required heat dissipation area.

Note that, for the support member 110 on the side closer to the support object 1 than the position where the heat dissipation device 120 is installed, if the temperature reduction effect of the heat dissipation device 120 does not reduce the temperature to the reduction target temperature, this part can be reinforced as necessary.

Regarding the heat dissipation device 120, if a heat dissipation device has already been installed, it is replaced with a new heat dissipation device 120 or a new heat dissipation device 120 is added. At this time, if the support member 110 is provided with protection to prevent burns, it is partially removed and restored after the heat dissipation device 120 is installed. In addition, after the new heat dissipation device 120 is installed, measures to prevent burns are taken, such as providing a cage-shaped protective part that surrounds the heat dissipation device 120, so that the human body does not come into direct contact with the heat dissipation device 120.

As described above, in this embodiment, even if the conditions of the object to be supported change to the higher temperature side, it is possible to deal with this by adding or replacing the heat dissipation device without significantly changing the load transfer path, which is the strength member of the support structure. This results in significant benefits in terms of cost and construction time.

Second Embodiment
Fig. 6 is a side view showing the configuration of the heat dissipation device according to the second embodiment. Fig. 7 is a cross-sectional view taken along line VII-VII in Fig. 6 showing the configuration of the heat dissipation unit of the heat dissipation device according to the second embodiment. Fig. 8 is a perspective view showing the installation process of the heat dissipation device according to the second embodiment.

The support structure 100 according to this embodiment is a modification of the support structure 100 in the first embodiment. The only difference from the first embodiment is the heat dissipation device 130, and the other points are the same as those of the first embodiment .
The heat dissipation device 130 has two heat dissipation units 130a, a contact member 133, and a number of bolts and nuts (not shown) .

The two heat dissipation units 130a are joined to each other so as to face each other with the extension member 112 in between. Each heat dissipation unit 130a has a connecting member 131 and a plurality of heat dissipation plates 132. The connecting member 131 is formed integrally and has a contact portion 131b and a coupling portion 131a . The contact portion 131b is a portion that is in contact with the extension member 112 and extends along the longitudinal direction of the extension member 112. The contact portion 131b is connected to the coupling portion 131a on both sides in the width direction.

The connecting portions 131 a are formed with bolt holes 135 , and the mutually opposing connecting portions 131 a are fastened to each other with bolts and nuts , so that the two heat dissipation units 130 a are formed to clamp the extension members 112 .

The contact member 133 is a thermal resistance reducing element that is wound around the extension member 112 and is interposed between the extension member 112 and the contact portion 131b of each heat dissipation unit 130a, and ensures heat transfer from the extension member 112 to the contact portion 131b of the heat dissipation unit 130a. The contact member 133 can be, for example, one or more films of soft metal such as copper or aluminum. The thermal resistance reducing element is preferably a flexible solid or liquid. For example, oil for high heat use may be used as long as it functions as a thermal resistance reducing element.

The heat dissipation device 130 according to this embodiment, configured as described above, can be used in a set to attach the required number of heat sinks 132 and ensure heat dissipation functionality. This reduces the installation work.

[Other embodiments]
Although the embodiments of the present invention have been described above, the embodiments have been presented as examples and are not intended to limit the scope of the invention.

Functions of each embodiment may be combined. The embodiments may also be implemented in various other forms, and various omissions, substitutions, and modifications may be made without departing from the spirit of the invention.

Embodiments and variations thereof are within the scope and spirit of the invention, as well as within the scope of the invention and its equivalents as described in the claims.

1...support object, 3...structure, 100...support structure, 110...support member, 111...restraint portion, 112...extension member, 113...embedded metal fitting, 113a...flat plate, 113b...leg, 113c...welded portion, 120...heat dissipation device, 120a...heat dissipation unit, 121...direct attachment member, 121a...split direct attachment member, 121b...contact surface, 121c...connection hole, 122...heat dissipation member, 122a...split heat dissipation member, 123...contact member, 125...connection member, 125a...bolt, 125b...nut, 130...heat dissipation device, 130a...heat dissipation unit, 131...connecting member, 131a... connection portion , 131b... contact portion , 132...heat dissipation plate, 133...contact member, 135...bolt hole , 150...temperature reduction object

Claims (7)

A heat dissipation device that can respond to high temperature conditions of a fluid in a support structure having a metal fitting attached to a structure and a support member that receives a load from a support object and transmits the load to the metal fitting, comprising:
a direct attachment member consisting of two flat divided direct attachment members, each of which has a first recess that can be fitted with the support member and a contact surface that is a surface of the first recess, and which is detachably attached to the support member by sandwiching the support member between the first recesses of each of the divided direct attachment members ;
two flat heat dissipation members that are detachably attached to the direct attachment member from both sides of the direct attachment member with the direct attachment member sandwiched therebetween;
a contact member which is a thermal resistance reducing element provided between each of the two heat dissipation members and the direct attachment member;
A heat dissipation device comprising : The heat dissipation device according to claim 1 , wherein the thermal expansion coefficient of the direct attachment member is approximately the same as the thermal expansion coefficient of the support member . 2. The heat dissipation device according to claim 1 , wherein the thermal expansion coefficient of the direct attachment member is smaller than the thermal expansion coefficient of the support member, and a clearance is secured between the contact surface and the support member at room temperature . A heat dissipation device as described in any one of claims 1 to 3, characterized in that each of the two heat dissipation members has two divided heat dissipation members, and a second recess capable of engaging with the support member is formed on the side portion of each of the two divided heat dissipation members facing the support member. The heat dissipation device according to claim 4 , wherein the two divided direct mounting members and the two divided heat dissipation members are mounted such that the orientation of the first recess and the orientation of the second recess are shifted by 90 degrees from each other. 6. The heat dissipation device according to claim 1 , wherein the contact member is made of copper or aluminum. The support structure is capable of responding to a high temperature condition of the fluid in the supported object,
The metal fitting attached to the structure; and
The support member receives the load from the support object and transmits the load to the metal member;
A heat dissipation device according to any one of claims 1 to 6,
A support structure comprising:

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