JP4927616B2 - Support device for cryogenic fluid transfer pipe - Google Patents

Description

  The present invention relates to a support device for a cryogenic fluid transfer pipe that is laid in a tunnel and can prevent the transfer pipe that transfers a cryogenic fluid such as LNG from being lifted.

  As phenomena assumed in the transfer pipe laid in the tunnel, there are submersion and heat shrinkage. In submergence, when a large-scale leak occurs in a tunnel installed under the surface of the sea, such as the seabed, water enters the tunnel, and the total mass of the transfer pipe, transferred material, and cold insulation is less than the water mass of the same volume. Therefore, the transfer pipe laid in the tunnel floats over the entire length. When such a phenomenon occurs, a large buoyancy acts on the transfer pipe, causing deformation and damage to the transfer pipe, and in the worst case, the transferred material flows out. In addition, the transfer pipe is greatly displaced, and the transfer pipe does not return to the normal support point after draining the water in the tunnel, making it difficult to reuse the transfer pipe. Even if the pipe body is healthy, that is, even if the deformation of the pipe body is within the elastic limit, if it does not return to the normal support position, it does not function as a piping system and can be reused. Can not.

  Regarding the thermal contraction, when a low-temperature fluid is caused to flow through a transfer pipe disposed in a concave shape, the pipe body is thermally contracted due to a temperature drop, and the entire transfer pipe is displaced vertically upward. When an earthquake occurs with such a vertically upward force acting on the transfer pipe, the load below the vertical is superimposed on the transfer pipe, the earthquake load is concentrated locally, and the transfer pipe is damaged.

  For example, Non-Patent Document 1 discloses a conventional technique for solving such a problem caused by submersion and a problem caused by heat shrinkage. This Non-Patent Document 1 discloses a support device 1a for restraining a transfer pipe on a base by a U bolt, a support device 1b for restraining the transfer pipe on a base by a U band, and a base frame by using a portal frame. The support device 1c restrained on is described, and these support devices 1a-1c are demonstrated below.

  FIG. 7 is a sectional view showing a support device 1a using a U-bolt according to the prior art, and FIG. 8 is a side view of the support device 1a as seen from the right side of FIG. In this conventional support device 1a, a base 3 realized by H-shaped steel or the like is fixed on a foundation structure 2 constructed of concrete or the like, and a transfer pipe 4 is supported by the base 3. The U bolt 6 is mounted on the transfer pipe 4 supported on the base 3 from above, and both ends where external screws are engraved are inserted through the flat bar 7 in the thickness direction, and the nut 8 is screwed. The The flat bar 7 is welded to one side edge of the flange disposed above the base 3 and restrains the displacement in the direction perpendicular to the tube axis L, that is, in the horizontal direction X and the vertical direction Y, to the transfer pipe 4. However, the U-bolt 6 cannot be applied to a transfer pipe having a large diameter exceeding, for example, 75 mm because the member strength is insufficient.

  FIG. 9 is a cross-sectional view showing a supporting device 1b using another conventional U-band, and FIG. 10 is a side view of the supporting device 1b as seen from the right side of FIG. In this conventional support device 1b, a base 3 realized by H-shaped steel or the like is fixed on a foundation structure 2 constructed of concrete or the like, and a transfer pipe 4 is supported by the base 3. The U band 10 is mounted on the transfer pipe 4 supported by the base 3 from above and is supported by the base 3 by a plurality of bolts 12 and nuts 13, but the metal pipe body is a heat insulating material or a cold insulating material. In the transfer pipe 4 covered with the heat insulating material, the friction with the base 3 supporting the transfer pipe 4 hinders thermal expansion and contraction accompanying the temperature change of the transfer pipe 4 and damages the heat insulating material and the cold insulating material. Or it cannot apply to fixation of the transfer pipe 4 with which a cold insulating material is mounted | worn.

  FIG. 11 is a cross-sectional view showing a supporting device 1c using still another conventional portal frame. The support device 1c according to the prior art includes a foundation structure 2 constructed of concrete or the like, and a pair of support posts 14a and 14b are erected, and the support posts 14a and 14b are connected to each other by horizontal members 15a and 15b. A frame 16 is formed. Each support | pillar 14a, 14b and each horizontal member 15a, 15b consist of shape steel materials, such as channel steel with a cross-sectional concave shape. Guide receiving portions 17a and 17b are provided on the inner surfaces of the columns 14a and 14b facing each other, and guide receiving portions 18a and 18b are provided on the horizontal members 15a and 15b. In these guide receiving portions 17a, 17b; 18a, 18b, guide projections 19a, 19b; 20a, 20b provided on the outer peripheral portion of the transfer pipe 4 are fitted, and are expanded and contracted in the tube axis L direction of the transfer pipe 4. And displacement in the horizontal direction X and the vertical direction Y can be prevented.

  In such a support device 1c, the transfer pipe 4 is installed in a state where the upper horizontal member 15a is not connected to each of the columns 14a and 14b, and if the transfer tube 4 is not installed, the upper horizontal member 15a is connected to each column 14a. , 14b, the work efficiency is poor. Moreover, since the portal frame 16 is heavy, there is a problem that workability is poor in a narrow tunnel and the material cost and construction cost are increased.

Satoshi Naruse “Piping Design Course” published by Nihon Kogyo Publishing Co., Ltd., revised on March 31, 1975 (p.234-p.238)

  An object of the present invention is to provide a supporting device for a cryogenic fluid transfer pipe capable of improving the workability of the transfer pipe laying operation and reducing the material cost and the construction cost and restraining the horizontal displacement and the vertical displacement of the transfer pipe. Is to provide.

The present invention includes a support body that supports a transfer pipe through which a cryogenic fluid passes from below, a pair of support columns provided on both sides of the transfer tube, and at least the portions closest to each support column. look including a pair of locking members which are connected respectively to protrude inward from the upper a and the side edge than the side edge of the transfer tube,
Each locking member has a substantially L-shaped cross section having a plate-like first portion and a plate-like second portion having a cross-sectional width different from that of the first portion, which is substantially perpendicular to one side of the first portion. Made of short material,
A plurality of bolt insertion holes, through which the shaft portions of the bolts are inserted, are formed in the first and second parts, respectively .

  According to the present invention, the transfer pipe for transferring a low-temperature fluid such as LNG is supported by the support body, and displacement to both sides is suppressed by the pair of support columns. Each strut is provided with a locking member. Each locking member is arranged such that at least the portions closest to each other are disposed above each side edge of the transfer pipe and protrude inward, which is a side closer to each other than each side edge. , Connected to each column.

  Each of these locking members has a distance between the locking members smaller than the diameter of the transfer pipe even if the transfer pipe tries to move vertically upward due to buoyancy due to submergence in the tunnel, seismic load, and thermal expansion and contraction. The transfer pipe cannot pass between the respective locking members and is prevented from being displaced vertically upward. Each locking member is made of a short material, and the upper ends of the columns 14a and 14b do not need to be connected by a horizontal member as in the support device 1c using the portal frame of the prior art, and the transfer pipe is connected between the columns. After the installation, the respective locking members may be attached to the respective columns, and the material cost and the construction cost can be reduced. In addition, it is not necessary to connect a heavy horizontal member to each column, and it is only necessary to attach a locking member, which is a short material, so that workability is good even in a narrow tunnel, etc. Workability of laying work is improved.

Each locking member in cross-section consists of substantially L-shaped short member has a configuration in which the second portion cross-sectional width on one side of the first portion is different, which are arranged in this substantially perpendicular. A plurality of bolt insertion holes are formed in the first part and the second part, respectively, and either one of the first part and the second part can be fixed to each column with a bolt. When the first portion is fixed to each column, the second portion protrudes in a direction close to each other, and the lifting of the transfer pipe can be prevented by each second portion. In addition, when the second part is fixed to each column with a bolt, the first part protrudes in a direction close to each other, and the first part can prevent the transfer pipe from being lifted. In this way, by fixing either the first part or the second part to the support member, the other part of the first part or the second part protrudes from each column to change the contact position with the transfer pipe. It is possible to adjust the allowable amount of lifting of the transfer pipe without increasing the periphery of the locking member.

The present invention also provides a support for supporting a transfer pipe through which a cryogenic fluid passes from below,
A pair of struts erected on both sides of the transfer pipe;
A pair of locking members that are connected to the respective struts by projecting at least the portions closest to each other above each side edge of the transfer pipe and projecting inward from each side edge;
Each locking member has a substantially L-shaped cross section having a plate-like first portion and a plate-like second portion having a cross-sectional width different from that of the first portion, which is substantially perpendicular to one side of the first portion. A plurality of bolt insertion holes through which the shaft portions of the bolts are inserted, and each bolt insertion hole is a long hole extending in the cross-sectional width direction. The supporting device for the cryogenic fluid transfer pipe .

  According to the present invention, each locking member is made of a short material having a substantially L-shaped cross section, and a second portion having a different cross-sectional width is formed on one side of the first portion so as to be substantially perpendicular to each other. A plurality of bolt insertion holes are respectively formed in the second portion, and the bolt insertion holes are elongated holes extending in the cross-sectional width direction of the first and second portions, and the first portion is formed by using such bolt insertion holes. The part or the second part is fixed to each column by bolts. Since each locking member is configured in this way, when one of the first part and the second part is fixed to each column with the bolt, the other of the first part and the second part is close to each other. By selecting the mounting portion for each support column, the allowable amount for the lifting of the transfer pipe can be adjusted without increasing the type of the locking member. Further, since the bolt insertion holes formed in the first and second parts are elongated holes, even if the part fixed to each support member is either the first part or the second part, The mounting position with respect to each column can be adjusted in the direction in which each column extends, thereby increasing the allowable floating amount and finely adjusting the contact position with the transfer pipe.

The present invention also provides a support for supporting a transfer pipe through which a cryogenic fluid passes from below,
A pair of struts erected on both sides of the transfer pipe;
A pair of locking members that are connected to the respective struts by projecting at least the portions closest to each other above each side edge of the transfer pipe and projecting inward from each side edge;
Each locking member has a substantially L-shaped cross section having a plate-like first portion and a plate-like second portion having a cross-sectional width different from that of the first portion, which is substantially perpendicular to one side of the first portion. The first and second portions are formed with a plurality of bolt insertion holes through which the bolt shaft portions are inserted, and the shaft portions of the bolts are inserted into the respective struts. A supporting device for a cryogenic fluid transfer pipe, wherein a plurality of elongated guide holes extending in a direction are formed.

  According to the present invention, each locking member is made of a short material having a substantially L-shaped cross section, and a second portion having a different cross-sectional width is connected to one side of the first portion at a substantially right angle. A plurality of bolt insertion holes are respectively formed in the two portions. In each of such locking members, the first and second portions are selectively fixed by bolts, and the contact position with the transfer pipe can be adjusted. In each column to which such a locking member is attached, a plurality of guide long holes are formed extending in the longitudinal direction of each column. Thus, since each guide post is formed with a guide long hole, the mounting position of the locking member with respect to the post can be moved along each guide long hole. Fine adjustment can be made within the range to be formed.

  According to the present invention, since the vertical displacement of the transfer pipe is prevented by the locking member provided on each column, each column after the heavy horizontal member is installed on the transfer tube as in the prior art. This eliminates the need to attach the transfer pipe and improves the workability when laying the transfer pipe. Further, since the locking member is smaller than the horizontal member, the material cost can be reduced.

Also, the locking member is so made of substantially L-shaped cross-section of the short member having a first portion and a second portion cross-sectional width are different, for connecting one of the first and second parts to each strut Accordingly, the other of the first part and the second part can be protruded from each column, and the allowable lifting amount with respect to the transfer pipe can be adjusted. As a result, even if the allowable amount of lift differs greatly, the type of locking member does not increase unnecessarily, reducing the material cost and construction cost, improving the degree of freedom in design for the allowable amount of lift, The adjustment range of the allowable lifting amount can be increased.

  Furthermore, according to the present invention, a plurality of bolt insertion holes are formed in each of the first portion and the second portion of each locking member, and these bolt insertion holes are elongated holes extending in the cross-sectional width direction. A direction in which the bolt insertion hole extends can be adjusted by selectively attaching each locking member so that either one of the first and second portions protrudes from each column. , Each locking member can be displaced at the mounting position thereof, and this also makes it possible to finely adjust the allowable amount of lifting and further increase the adjustment range of the allowable amount of lifting. .

  Furthermore, according to the present invention, a plurality of bolt insertion holes are formed in the first and second portions of each locking member, and a guide long hole is formed in each column. By mounting so that one of the first and second parts protrudes from the support column, the floating allowance can be adjusted, and the mounting position of each locking member with respect to each support column can be adjusted along the guide slot. This also makes it possible to finely adjust the allowable amount of lift, and to increase the allowable amount of lift with a simple configuration.

  FIG. 1 is a cross-sectional view showing a cryogenic fluid transfer pipe support device 30 according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along section line II-II in FIG. 1, and FIG. It is sectional drawing of the whole tunnel in which the apparatus 30 is installed.

  The support device 30 of the present embodiment is installed via a leveling mortar layer 33 on a foundation structure portion 32 constructed of concrete at the bottom of a tunnel 31, and passes through a transfer pipe 34 through which a low-temperature fluid such as LNG passes from below. It has a support 35 to be supported, a pair of support columns 36a and 36b erected on both sides of the transfer pipe 34, and a pair of locking members 50a and 50b connected to the upper portions of the support columns 36a and 36b. The tunnel 31 has an inner diameter of, for example, 2.4 m, and a work space in which an operator can perform laying work in a state where the transfer pipe 34 is laid by the support device 30 is secured.

  The transfer pipe 34 laid in such a tunnel 31 includes a pipe main body 37, a cold insulation heat insulator 8 attached so as to surround the pipe main body 37, and a cover body 39 covering the cold insulation heat insulator 8. Have.

  The pipe body 37 is made of an Invar alloy. This Invar alloy has a linear expansion coefficient as small as about 1/10 that of stainless steel, and the entire length of the piping system can be constituted by only a straight pipe. This Invar alloy has the same strength and low temperature characteristics as stainless steel SUS304. For such a pipe body 37, a straight pipe having a diameter of, for example, 318.5 mm and a plate thickness of 6.0 mm is used, but is not limited thereto.

  The cold insulation insulator 8 has an inner layer 40a through the tube body 37 and an outer layer 40b through the inner layer 40a. The inner layer 40a and the outer layer 40b are made of rigid foamed urethane, and the LNG flowing in the tube body 37 is about −160 ° C. Therefore, the generation of stress due to the thermal contraction of the tube body 37 due to the cryogenic fluid is suppressed. ing.

  The cover body 39 includes a pair of semi-cylindrical cover portions 41a and 41b, and a pair of screw receiving brackets 42a and 42b provided to project radially outward from both circumferential ends of the cover portions 41a and 41b. Abutting members 43a and 43b provided to project from both sides intersecting a virtual horizontal plane including the tube axis L of each cover portion 41a and 41b, and bolts attached to circumferentially opposed screw receiving brackets 42a and 42b 44 and nuts 45 respectively screwed to bolts 44 attached to the respective screw receiving brackets 42a and 42b. Each of the cover portions 41a and 41b is made of a steel plate.

  The aforementioned screw receiving brackets 42a and 42b, bolts 44, and nuts 45 that face each other in the circumferential direction constitute two joint portions 46a and 46b that are spaced apart in the circumferential direction. These coupling portions 46a and 46b are arranged symmetrically with respect to an imaginary vertical plane including the tube axis L with a position shifted by about 45 ° in the circumferential direction. That is, one coupling portion 46a is disposed above the virtual one horizontal plane including the tube axis L and closer to the other column 36b than the virtual one vertical plane. Further, the other coupling portion 46b is disposed below the virtual horizontal plane and closer to the one pillar 36a.

  Thus, since each coupling | bond part 46a, 46b is provided, while working space which tightens the volt | bolt 44 and the nut 45 around it can be ensured, interference with each support | pillar 36a, 36b can be avoided, and the transfer pipe 34 can be prevented. A support leg 47 having a concave cross section can be provided at the bottom. This support leg 47 is made of the same material as each of the cover portions 41a and 41b described above, and each upper end portion is welded and joined to the other cover portion 41b, and is attached to the substantially horizontal and flat upper surface 48 of the support 35. It is supported and supports the transfer pipe 34 stably.

  Locking members 50a and 50b are provided at the upper ends of the columns 36a and 36b. Each locking member 50a, 50b is connected at right angles to the plate-like first portions 51a, 51b and one side portion (lower end portion in FIG. 1) of the first portions 51a, 51b, and the first portions 51a, 51b The plate-like second portions 52a and 52b having different cross-sectional widths b with respect to the cross-sectional width a, and inside the contact members 43a and 43b that are the side edges of the transfer pipe 34, that is, mutually They are provided so as to protrude in the approaching direction.

  The lower surfaces of the second portions 52a and 52b and the upper surfaces of the contact members 43a and 43b are spaced apart from each other in the vertical direction by the spaces ΔL1 and ΔL2, respectively. Is done. Further, the contact members 43a and 43b are spaced apart from each of the columns 36a and 36b in the horizontal direction with an interval ΔL3 and ΔL4, and these intervals ΔL3 and ΔL4 are allowed to move in the horizontal direction of the transfer pipe 34. The

  FIG. 4 is an enlarged cross-sectional view of the vicinity of the upper end of the column 36a on which one locking member 50a is provided, and FIG. 5 is an enlarged perspective view of one locking member 50a and the vicinity thereof. Since the other locking member 50b is provided symmetrically with respect to a virtual one vertical plane including the tube axis L at the upper end portion of the support column 36b like the one locking member 50a, description thereof is omitted to avoid duplication. . As described above, the one locking member 50a has the first portion 51a and the second portion 52a, has a substantially L-shaped cross section, and has a small cross section width b in FIGS. The first portion 51a is detachably attached to the upper end portion of the column 36a by a pair of bolts 53 and nuts 54 with the two portions 52a facing downward.

  Each of the columns 36a, 36b is made of T-shaped steel having a substantially T-shaped cross section perpendicular to the axis, and the lower end portion thereof is erected in parallel with the flange portion 55 facing the support body 35. Each locking member 50a, 50b is detachably connected by the above-described bolt 53 and nut 54 in a state where the first portions 51a, 51b are in contact with the flange portion 55 in parallel.

  With such a configuration, the locking members 50a and 50b are detachably provided at the upper ends of the columns 36a and 36b with bolts 53 and nuts 54, so that the transfer pipe 34 is disposed at a high position with respect to the support device 30. In this place, the locking members 50a and 50b are turned upside down with the second portions 52a and 52b upward with respect to the columns 36a and 36b, and attached to the columns 36a and 36b with bolts 53 and nuts 54. be able to. As a result, the contact positions of the contact members 43a and 43b with the lock members 50a and 50b can be easily changed using the lock members 50a and 50b, the bolt 53, and the nut 54, or the transfer pipe 34 can be lifted. Capacitances ΔL1 and ΔL2 can be changed.

  Further, since each of the locking members 50a and 50b is made of a structural steel material having a substantially L-shaped cross section, it is not necessary to attach a heavy horizontal member between the columns 36a and 36b as in the prior art, and each of the locking members 50a and 50b can be easily and quickly performed. The locking members 50a and 50b can be accurately positioned and attached to the respective columns 36a and 36b, and workability is good even in a narrow space in the tunnel 31, and workability when the transfer pipe 34 is laid. Is improved. In addition, as described above, the contact position or the floating allowances ΔL1 and ΔL2 can be changed using the single locking members 50a and 50b, so that the number of members can be reduced and the material cost and the construction cost can be reduced. can do.

  For reference, the cross-sectional width a of the first portions 51a and 51b of the locking members 50a and 50b is 125 mm, and the cross-sectional width b of the second portions 52a and 52b is 20 to 30 mm. The expected width c perpendicular to the cross section is 150 mm. By such locking members 50a and 50b, the upward displacement of the transfer pipe 34 is prevented with the intervals ΔL1 and ΔL2 as an allowable amount. It is possible to prevent the detachment from the support device 30. It is possible to prevent damage to the cold insulation insulator 38 and further damage to the tube body 37. By using the locking members 50a and 50b as described above, the weight of components carried into the tunnel can be greatly reduced, and the transportability and mounting workability of the components can be greatly improved.

  FIG. 6 is a partially enlarged perspective view showing a locking member 50a and a column 36a used in a cryogenic fluid transfer pipe support apparatus according to still another embodiment of the present invention. The parts corresponding to those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted to avoid duplication. Further, since the locking members 50a and 50b and the support columns 36a and 36b have the same configuration, only the locking member 50a and the support column 36a will be described. In the present embodiment, the cross-sectional width b of the second portion 52a is larger than the cross-sectional width a of the first portion 51a of the locking member 50a, and the shaft portion of the bolt 53 is included in both the first and second portions 51a and 52a. A pair of elongated holes 59 and 60 which are bolt insertion holes through which are inserted are formed in parallel.

  By adopting such a configuration of the locking member 50 a, the shaft portion of each bolt 53 inserted through the pair of bolt insertion holes 61 formed in the flange portion 55 of the column 36 a is used as the long hole 59 of the first portion 51. The first portion 51a can be detachably connected to the flange portion 55 of the support post 36a by inserting the nut 54 and screwing it. In addition, when it is desired to finely adjust the allowable floating amount or the contact position of the transfer pipe 34, the locking member 50a is moved up and down along the long hole 59 with the nut 54 loosened, or the long hole of the second portion 52a. 60, the shaft portion of the bolt 53 is inserted, the second portion 52a is made to face the flange portion 55 of the column 36a, and the height position is finely adjusted along the long hole 60, so that the locking member is placed at the optimum height position. 50a can be installed.

  In this embodiment as well, the same effect as that of the above-described embodiment is achieved, and the portions connected to the respective columns 36a and 36b by the bolts 53 and the nuts 54 are the first portions 51a and 51b or the first portions. The two portions 52a and 52b can be connected to face each other, and the contact position or the floating allowances ΔL1 and ΔL2 due to the difference in the cross-sectional widths a and b of the first and second portions 51a and 51b are finely adjusted. can do. Moreover, even if any of the first portions 51a and 51b and the second portions 52a and 52b is brought into contact with the support columns 36a and 36b, the support members 36a and 50b of the locking members 50a and 50b are connected by the long holes 59 and 60. It is possible to finely adjust the height position with respect to 36b, thereby allowing the adjustment amount or the locking position of the transfer pipe 34 by the locking members 50a and 50b to be allowed in a wide range.

  In still another embodiment of the present invention, as indicated by the phantom line 63 in FIG. 6, a pair of elongated holes 63 extending vertically in the vertical direction as bolt insertion holes are engaged with the flange portions 55 of the columns 36a and 36b. You may make it stop. By connecting the locking members 50a and 50b having the long holes 59 and 60 to the columns 36a and 36b in which the long holes 63 are formed, the columns 36a and 36b of the locking members 50a and 50b are connected. The range of the attachment position can be further increased to increase the locking position of the transfer pipe 34 or the adjustment amount for lifting.

  The locking members 50a and 50b of the embodiment shown in FIGS. 1 to 5 may be connected to the support columns 36a and 36b in which such long holes 63 are formed. The members 50a and 50b can be moved up and down within the range of the long hole 63 to adjust the height position of the transfer pipe 34 or the allowable lifting amount.

  In each of the embodiments shown in FIGS. 1 to 6, the cryogenic fluid is LNG, and the transfer pipe 34 for transferring the LNG has been described. However, in still another embodiment of the present invention, the cryogenic fluid is used as the cryogenic fluid. For example, the present invention can also be suitably implemented as a transfer tube support device that transfers ethylene at about -100 ° C, liquefied nitrogen at about -190 ° C, or steam at 100 ° C or higher, and is similar to the above-described embodiments. It is possible to achieve an effect.

  In addition, the present invention is not limited to a low-temperature fluid, and can also be applied to a high-temperature fluid transfer pipe wound with a heat insulating material having a small specific gravity with respect to water, and a similar effect can be achieved.

It is sectional drawing which shows the supporting apparatus 30 of the cryogenic fluid transfer pipe | tube of one Embodiment of this invention. It is sectional drawing seen from the cut surface line II-II of FIG. It is sectional drawing of the whole tunnel in which the support apparatus 30 is installed. It is an expanded sectional view near the upper end part of the support | pillar 36a in which one locking member 50a is provided. It is an enlarged perspective view of one locking member 50a and its vicinity. It is a partially expanded perspective view which shows the locking member 50a and the support | pillar 36a which are used for the support apparatus of the cryogenic fluid transfer pipe of the further another form of implementation of this invention. It is sectional drawing which shows the support apparatus 1a using a U-bolt of a prior art. It is a side view of the support apparatus 1a seen from the right side of FIG. It is sectional drawing which shows the support apparatus 1b using the U band of another prior art. FIG. 10 is a side view of the support device 1b as viewed from the right side of FIG. 9. It is sectional drawing which shows the support apparatus 1c which uses the gate frame of another prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 30 Support apparatus 31 Tunnel 32 Base structure part 34 Transfer pipe 35 Support body 36a, 36b Support | pillar 37 Pipe main body 38 Cold insulation insulator 39 Cover body 41a, 41b Cover part 43a, 43b Contact member 46a, 46b Joint part 50a, 50b Locking Member 51a, 51b 1st part 52a, 52b 2nd part 59, 60, 63 Long hole 61 Bolt insertion hole

Claims (3)

A support for supporting the transfer pipe through which the cryogenic fluid passes from below;
A pair of struts erected on both sides of the transfer pipe;
Each strut, seen including a pair of locking members at least the mutually closest to part, are connected respectively to protrude inward from the upper a and the side edge than the side edge portions of said transfer tube ,
Each locking member has a substantially L-shaped cross section having a plate-like first portion and a plate-like second portion having a cross-sectional width different from that of the first portion, which is substantially perpendicular to one side of the first portion. Made of short material,
A plurality of bolt insertion holes through which bolt shafts are inserted are formed in the first and second parts, respectively . A support for supporting the transfer pipe through which the cryogenic fluid passes from below;
A pair of struts erected on both sides of the transfer pipe;
A pair of locking members that are connected to the respective struts by projecting at least the portions closest to each other above each side edge of the transfer pipe and projecting inward from each side edge;
Each locking member has a substantially L-shaped cross section having a plate-like first portion and a plate-like second portion having a cross-sectional width different from that of the first portion, which is substantially perpendicular to one side of the first portion. Made of short material,
A plurality of bolt insertion holes through which the shaft portions of the bolts are inserted are formed in the first and second parts, respectively.
Each bolt insertion hole, a low temperature fluid transfer tube of the supporting device you being a long hole extending in cross-sectional width direction. A support for supporting the transfer pipe through which the cryogenic fluid passes from below;
A pair of struts erected on both sides of the transfer pipe;
A pair of locking members that are connected to the respective struts by projecting at least the portions closest to each other above each side edge of the transfer pipe and projecting inward from each side edge;
Each locking member has a substantially L-shaped cross section having a plate-like first portion and a plate-like second portion having a cross-sectional width different from that of the first portion, which is substantially perpendicular to one side of the first portion. Made of short material,
A plurality of bolt insertion holes through which the shaft portions of the bolts are inserted are formed in the first and second parts, respectively.
Each strut inserted shank of the bolt, a plurality of guide slots support device with low temperature fluid transfer tube you being formed respectively extending in the longitudinal direction of each strut.

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