JP2019152621A - Air storage tank - Google Patents

Abstract

To provide an air storage tank capable of inhibiting a heat storage pipe from being damaged.SOLUTION: An air storage tank includes: an air storage tank body for storing gas; a heat storage boy which is arranged inside the air storage tank body and includes a plurality of pipes constituting a part of a passage leading to a discharge port of gas stored in the air storage tank body; and a fixed part in which a plurality of insertion holes are bored. The plurality of pipes are inserted into and fixed to the plurality of insertion holes bored in the fixed part one by one.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an air storage tank.

  Conventionally, a storage tank body for storing gas, and a plurality of pipes that are arranged inside the storage tank body and constitute a part of a flow path that leads to a discharge port of the gas stored in the storage tank body An air storage tank including a heat storage body including a pipe is known. Here, the said thermal storage body is provided in order to suppress the temperature fall of the gas by adiabatic expansion, when discharge | releasing the gas stored in the gas storage tank main body. For example, Japanese Utility Model Laid-Open No. 63-129845 (Patent Document 1) proposes such an air storage tank.

  The air storage tank of Patent Document 1 includes a spherical air tank main body having a large volume and an air temperature control device for the air storage tank disposed inside the air storage tank main body. The temperature regulating device for the air storage tank includes a cylindrical pressure-resistant cylinder, a heat storage body composed of an assembly of thin metal pipes filled in the pressure-resistant cylinder, and flanges provided at upper and lower opening ends of the pressure-resistant cylinder. And a lid plate that is attached in an airtight and detachable manner.

Japanese Utility Model Publication No. 63-129845

  Incidentally, the plurality of pipes included in the air storage tank of Patent Document 1 are formed relatively long along the axial direction in order to sufficiently transfer heat to the gas passing through the pipe. Even if a plurality of pipes are filled in the pressure-resistant cylinder, there is a slight gap between the pipes. However, in such a structure, the plurality of pipes vibrate when the gas passes through the pipes, and there is a risk that the pipes may come into contact with each other and be damaged.

  Then, an object of this invention is to provide the air storage tank which can suppress that the pipe of a thermal storage body will be damaged.

  In order to solve the above-mentioned problem, an air storage tank according to the present invention includes an air storage tank body for storing gas, an internal structure of the air storage tank body, and a gas stored in the air storage tank body. A heat storage body including a plurality of pipes constituting a part of a flow path leading to the discharge port; and a fixing portion in which a plurality of insertion holes are drilled, and a plurality of holes drilled in the fixing portion. The plurality of pipes are inserted through the insertion holes and fixed one by one.

  According to the above configuration, since a plurality of pipes are inserted and fixed one by one in the plurality of insertion holes formed in the fixing portion, the plurality of pipes are used when gas passes through the inside. Even if they vibrate to each other, contact with each other is suppressed. As a result, it is possible to suppress damage to the pipe of the heat storage body.

  The fixing portion includes a first fixing portion and a second fixing portion, and the first fixing portion is provided with respect to one end portion in the axial direction of the plurality of pipes, and the second fixing portion is You may provide with respect to the other end part of the axial direction of the said several pipe.

  According to the said structure, compared with the case where there is only one fixing | fixed part, it is further suppressed that several pipes mutually contact.

  The plurality of pipes are divided into a plurality of units, and the fixing portion includes a plurality of fixing plates that are divided for each of the plurality of units, and adjacent fixing plates among the plurality of fixing plates. And a first connecting member connecting the two.

  According to the above configuration, since a plurality of pipes can be removed in units, maintenance work and the like can be performed efficiently.

  A plurality of through holes are drilled, and further includes a support portion provided between the first fixing portion and the second fixing portion in the axial direction of the plurality of pipes. Each of the plurality of pipes may be inserted through a plurality of through holes provided.

  According to the said structure, it is suppressed that they mutually contact even in the middle of a comparatively long pipe.

  The plurality of pipes are divided into a plurality of units, and the support portion includes a plurality of support plates that are divided for each of the plurality of units, and adjacent support plates among the plurality of support plates. And a second connecting member connecting the two.

  According to the above configuration, even when the support portion is provided, a plurality of pipes can be removed in units, so that maintenance work and the like can be performed efficiently.

  A frame provided on the outside of the plurality of pipes may be further provided, and the fixing portion may be fixed to the frame.

  According to the said structure, since a fixing | fixed part is supported by a frame, the vibration of a pipe itself is suppressed.

  You may further provide the at least 1 tie rod which has connected the said frame and the said air storage tank main body.

  According to the said structure, since a frame is supported by a tie rod and an air storage tank main body, seismic strength can be improved.

  ADVANTAGE OF THE INVENTION According to this invention, the air storage tank which can suppress that the pipe of a thermal storage body will be damaged can be provided.

It is sectional drawing which fractured | ruptured a part of the said air storage tank in order to show the whole structure of the air storage tank which concerns on embodiment of this invention. It is sectional drawing along the II-II line | wire shown in FIG. It is a perspective view of the unit structure with which the above-mentioned air storage tank is provided. It is a top view of the 1st fixed board which the said unit structure contains. It is the figure which expanded a part of lower end part which shows a mode that the said unit structures are connected, (A) is sectional drawing along a height direction, (B) is a schematic plan view. It is the figure which expanded a part of center part which shows a mode that the said unit structures are connected, (A) is sectional drawing along a height direction, (B) is a schematic plan view. It is the figure which expanded a part of lower end part which shows a mode that the said unit structures are connected, (A) is sectional drawing along a height direction, (B) is a schematic plan view.

(overall structure)
Hereinafter, an air storage tank according to an embodiment of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment. In the following description, the same or corresponding elements are denoted by the same reference symbols throughout the drawings, and redundant description thereof is omitted.

  1 and 2 show an air storage tank 10 according to this embodiment. The air storage tank 10 according to the present embodiment is used as part of equipment for conducting a wind tunnel experiment. Specifically, the air storage tank 10 stores air (gas) supplied from a compressor (not shown) in the air storage tank body 20. The air stored in the air storage tank body 20 is released into a space where a model such as an airplane is installed, for example, by opening a release valve (not shown).

  The air storage tank 10 includes an air storage tank body 20 for storing air, a heat storage body 30 disposed inside the air storage tank body 20, a frame body 70 disposed outside the heat storage body 30, and And eight tie rods 80 connecting the frame body 70 and the air storage tank body 20. The air storage tank 10 includes a nozzle skirt 82 on which the heat storage body 30 is placed, a nozzle tip 83 connected to the lower end of the nozzle skirt 82 and protruding from the lower end of the air storage tank body 20, A duct 84 connected to the nozzle tip 83 and four struts 85 extending from the outer surface of the gas storage tank body 20 to the placement surface are further provided.

(Air tank body 20)
The air storage tank body 20 is formed in a hollow and spherical shape. The four struts 85 are connected to the central portion in the height direction of the outer surface of the air storage tank body 20 at equal intervals in the circumferential direction in plan view. An openable and closable manhole 22 is provided at the upper end of the air storage tank body 20 (that is, the central part in plan view of the air storage tank body 20).

(Heat storage body 30 and unit structure 60)
The heat storage body 30 includes a plurality of pipes 32 constituting a part of a flow path leading to an air outlet (that is, the nozzle tip portion 83) stored in the air storage tank body 20 (see FIG. 3 and the like). In FIGS. 1 and 2, a plurality of pipes 32 and rod members 62, which will be described later, are omitted in order to avoid complexity of appearance. As shown in FIG. 2, the plurality of pipes 32 are divided into a plurality of units. In the present embodiment, the plurality of pipes 32 are divided into a total of 225 units in a 15 × 15 matrix. That is, the heat storage body 30 includes a total of 225 unit structures 60 arranged in a 15 × 15 matrix.

  FIG. 3 shows one unit structure 60. The unit structure 60 is composed of 96 pipes 32 which are one of 225 units obtained by dividing the plurality of pipes 32, and the lower end portion (one end portion in the axial direction) of the 96 pipes 32. The first fixing plate 42a (see FIG. 4) provided and the second fixing plate 42b provided for the upper end portions (the other end portion in the axial direction) of the 96 pipes 32. The unit structure 60 includes a first support plate 52a, a second support plate 52b, and a third support plate 52c provided between the first fixed plate 42a and the second fixed plate 42b, and four corners. Four rod members 62 that are provided and extend in the height direction, and four spacers 64 that are provided for each of the four rod members 62 (that is, a total of 16) are further provided.

  FIG. 4 shows the first fixing plate 42 a included in the unit structure 60. As shown in FIG. 4, the first fixed plate 42 a is square in plan view. In addition, the first fixed plate 42a is approximately a 10 × 10 matrix with components located at the four corners (ie, (1,1) component, (1,10) component, (10,1) component, and A total of 96 (that is, the same number as the 96 pipes 32) insertion holes 48 in which only the (10, 10) component does not exist are formed. In each of the four corners of the approximately 10 × 10 matrix, holes 49 having a diameter smaller than that of the insertion hole 48 are formed. On the bottom surface of the first fixed plate 42a, a rectangular parallelepiped protrusion 43 is provided at each of the four corners (see FIG. 5A).

  The second fixed plate 42b, the first support plate 52a, the second support plate 52b, and the third support plate 52c are each the first fixed plate shown in FIG. 4 except that the protrusion 43 is not provided on the bottom surface. 42a has the same structure. Therefore, the description and illustration thereof will not be repeated here.

  The 96 pipes 32 are inserted and fixed one by one through 96 insertion holes 48 drilled in the first fixing plate 42a at the lower end, and the second fixing plate 42b at the upper end. Each of the 96 insertion holes 48 is inserted and fixed. Also, 96 pipes 32 are formed in each of the first support plate 52a, the second support plate 52b, and the third support plate 52c between the first fixing plate 42a and the second fixing plate 42b. One through hole 58 is inserted and fixed.

(Lower end of the heat storage body 30)
FIG. 5A shows an enlarged cross-sectional view of a part of the lower end portion showing how the unit structures 60 are connected to each other. FIG. 5B shows a schematic plan view in which the part is enlarged. In FIG. 5B, the insertion hole 48 and the hole 49 formed in each of the first fixing plates 42a, the plurality of pipes 32, the rod member 62, and the like are omitted in order to avoid complexity of appearance. It is. The same applies to FIGS. 6B and 7B described later.

  As shown in a part of FIG. 5A, 96 pipes 32 are inserted and fixed to 96 insertion holes 48 formed in each of the first fixing plates 42a. The first fixed plate 42 a is placed on a pedestal 72 disposed at the upper end of the nozzle skirt 82. Here, the gantry 72 is constructed by assembling a plurality of flat plates 73 erected so that the thickness direction extends along the horizontal direction, so that a total of 225 units (that is, the 225 units described above) are divided into 15 × 15 matrixes. It has a square internal space 74 in plan view (the same number as the structure 60). In FIG. 6B, a part of the pedestal 72 when viewed in plan is shown by a broken line.

  The unit structure 60 is placed on the pedestal 72 by a portion of the bottom surface of the first fixed plate 42 a that is outside the four protrusions 43 abuts on the upper end of the flat plate 73 of the pedestal 72. At this time, the four protrusions 43 are arranged so as to be addressed from the inside to the corners of the internal space 74 of the gantry 72. With this arrangement, the unit structure 60 is restricted from moving in the horizontal direction by the plurality of flat plates 73 of the gantry 72. As described above, one unit structure 60 is placed in each of the 225 internal spaces 74, so that a total of 225 unit structures 60 are placed on the mount 72.

  The lower end 33 of each of the 96 pipes 32 is expanded. Each of the 96 pipes 32 is fixed to the first fixing plate 42a by the abutting of the expanded lower end 33 and the bottom surface of the first fixing plate 42a. A first male screw portion 63a is formed at the lower end portion of the rod member 62, and the first male screw portion 63a is formed in a screw groove (not shown) of a hole 59 formed in a corner portion of the first fixing plate 42a. Screw). The rod member 62 extends upward along the vertical direction from the lower end portion, and is inserted into each of the first support plate 52a, the second support plate 52b, the third support plate 52c, and the second fixed plate 42b, and has a unit structure. To the top of 60.

  According to the above configuration, the pipes 32 of the heat storage body 30 (that is, all of the plurality of pipes 32 included in the air storage tank 10) are formed in the first fixing portion 40a including the 225 first fixing plates 42a. The insertion holes 48 are inserted and fixed one by one.

(Central part of the heat storage body 30)
FIG. 6A is an enlarged cross-sectional view of a part of the central portion showing a state in which the unit structures 60 are connected to each other. FIG. 6B shows a schematic plan view in which the part is enlarged. As shown in part of FIG. 6A, 96 pipes 32 are inserted through and fixed to 96 through holes 58 formed in each of the first support plates 52a.

  The rod member 62 is inserted through a hole 59 formed in each of the first support plate 52a, the second support plate 52b, and the third support plate 52c. A cylindrical spacer 64 is disposed between the first fixed plate 42a and the first support plate 52a so as to enclose the rod member 62 therein. The outer diameter of the spacer 64 is slightly larger than the diameter of the hole 49 of the first fixing plate 42a and the hole 59 of the first support plate 52a. According to the above configuration, the spacer 64 is restricted from moving in the radial direction by the rod member 62, and is restricted from moving in the vertical direction by the first fixed plate 42 a and the first support plate 52 a.

  Between the first support plate 52a and the second support plate 52b, between the second support plate 52b and the third support plate 52c, and between the third support plate 52c and the second fixed plate 42b, respectively. Spacers 64 are arranged in the same manner. The rod member 62 and the four spacers 64 described above are provided in the same manner at the four corners of the unit structure 60, respectively.

  According to the above configuration, the first support plate 52a is restricted from moving in the vertical direction by the four spacers 64 in contact with the corners of the bottom surface and the four spacers 64 in contact with the corners of the top surface. Has been. The same applies to the second support plate 52b and the third support plate 52c. The second fixing plate 42b is restricted in vertical movement by the four spacers 64 that are in contact with the corners of the bottom surface and the four nuts 66 that are in contact with the corners of the top surface.

  As shown in part of FIGS. 6A and 6B, adjacent first support plates 52 a are connected to each other using a second connecting member 54. The second connecting member 54 is directly attached to the upper surface outside the four holes 49 formed in the first support plate 52a using a screw member (not shown) or the like.

  The second connecting member 54 includes 56 first support plates 52a (ie, (1, 1-10) component, (1-10, 1) component, (10, 1-10) component, And in the side view which connects the corner | angular parts located along the frame 70 of two adjacent 1st support plates 52a among the 1st support plates 52a which are located in a (1-10,10) component). An L-shaped second connecting member 54a and an L-shaped second connecting member 54b in a plan view connecting the corners of three adjacent first support plates 52a among the remaining 169 sheets other than the 56, including.

  In the side view, the L-shaped second connecting member 54 a has a rising portion that rises from the edge extending along the frame body 70 toward the front side of the drawing in FIG. In the side view, the L-shaped second connecting member 54 a connects two adjacent corners to each other, and connects the two corners and the frame body 70 by the rising portion. On the other hand, the L-shaped second connecting member 54b in plan view connects the three adjacent corners.

  According to the said structure, the pipe 32 of the thermal storage body 30 is the 2nd connection member 54 (namely, in side view) which has connected the 225 1st support plates 52a and the adjacent 1st support plates 52a among them. The L-shaped second connecting member 54a and the L-shaped second connecting member 54b) in plan view are inserted and fixed one by one through holes 58 formed in the first support portion 50a. . The first support portion 50a is fixed to the frame body 70 by an L-shaped second connecting member 54a in a side view.

  Similarly, the pipe 32 of the heat storage body 30 is connected to 225 second support plates 52b provided above the first support portion 50a and the second support plates 52b adjacent to each other are connected to each other. One through hole 58 formed in the second support portion 50b including the connecting member 54 (that is, the second connecting member 54a having an L shape in a side view and the second connecting member 54b having an L shape in a plan view). The whole book is inserted and fixed. And the said 2nd support part 50b is being fixed with respect to the frame 70 with the L-shaped 2nd connection member 54a in the side view. Since the same applies to the 225 third support plates 52c provided above the second support portion 50b, the description thereof will not be repeated here.

(Upper end of the heat storage body 30)
FIG. 7A shows an enlarged cross-sectional view of a part of the upper end portion showing a state in which the unit structures 60 are connected to each other. FIG. 7B shows a schematic plan view in which the part is enlarged. As shown in a part of FIG. 7A, 96 pipes 32 are inserted and fixed to 96 insertion holes 48 formed in each of the second fixing plates 42b.

  A second male screw portion 63 b is formed at the upper end portion of the rod member 62. The lower end of the second male screw part 63b is located slightly below the bottom surface of the second fixing plate 42b. A portion of the second male screw portion 63b located below the second fixing plate 42b is included in the spacer 64. Further, the upper end of the second male screw part 63b is located above the upper surface of the second fixing plate 42b and the upper end of the pipe 32. A nut 66 is screwed to the second male screw portion 63b to a position where it abuts on the upper surface of the second fixing plate 42b. The rod member 62 is restricted from moving upward by the nut 66.

  As shown in part of FIGS. 7A and 7B, the adjacent second fixing plates 42 b are connected to each other by the first connecting member 44 at the upper end portion of the rod member 62. The first connecting member 44 is inserted through the second male screw part 63 b of the rod member 62. The first connecting member 44 is sandwiched between two nuts 68 screwed to the rod member 62 in the vertical direction, so that the movement in the vertical direction and the horizontal direction is restricted. According to the above configuration, the first connecting member 44 connects the adjacent second fixing plates 42 b through the rod member 62.

  The first connecting member 44 includes 56 second fixing plates 42b located on the outermost side (i.e., (1, 1-10) component, (1-10, 1) component, (10, 1-10) component, And in the plan view connecting the corners located along the frame body 70 of the two second fixing plates 42b adjacent to each other among the second fixing plates 42b) located in the (1-10, 10) component. First connecting member 44a and the first connecting member 44b having a square shape in plan view for connecting the corners of the four second fixing plates 42b adjacent to each other among the remaining 169 sheets other than the 56 sheets. .

  The triangular first connecting member 44a connects two adjacent corners. Further, the triangular first connecting member 44 a connects the two corners and the frame body 70. On the other hand, the square first connecting member 44b connects four adjacent corners.

  According to the said structure, the pipe 32 of the thermal storage body 30 is the 1st connection member 44 (namely, in planar view) which connects 225 2nd fixing plates 42b and the 2nd fixing plates 42b adjacent among them. The first connecting member 44a having a triangular shape and the first connecting member 44b having a square shape are inserted into and fixed to insertion holes 48 formed in a second fixing portion 40b. And the said 2nd fixing | fixed part 40b is being fixed with respect to the frame 70 with the triangular 1st connection member 44a in planar view.

(Fixed portion 40 and support portion 50)
According to the above configuration, the air storage tank 10 includes the first fixing portion 40 a and the second fixing portion 40 b as the fixing portion 40. As shown in FIG. 5, the first fixing portion 40 a is provided with respect to the lower end portions (one end portion in the axial direction) of the plurality of pipes 32. Further, as shown in FIG. 7, the second fixing portion 40 b is provided with respect to the upper end portions (the other end portion in the axial direction) of the plurality of pipes 32.

  According to the above configuration, the air storage tank 10 includes the first support part 50 a, the second support part 50 b, and the third support part 50 c as the support part 50. The first support portion 50a, the second support portion 50b, and the third support portion 50c are provided at equal intervals in the axial direction with the same structure between the first fixing portion 40a and the second fixing portion 40b, respectively. . In addition, the 2nd support part 50b is provided above the 1st support part 50a, and the 3rd support part 50c is provided further above the 2nd support part 50b.

(Frame body 70)
As shown in FIGS. 1 and 2, the frame body 70 provided outside the heat storage body 30 is fixed to the upper end portion of the nozzle skirt 82. The frame 70 is framed in a cubic shape with 12 frames. The frame 70 is a frame that extends in the horizontal direction and connects the center of two frames extending in the height direction among the 12 frames on each of the four surfaces extending in the height direction of the cube. And a frame extending in a direction of 45 ° with the horizontal direction and connecting the corners.

(Tie rod 80)
As shown in FIGS. 1 and 2, the eight tie rods 80 respectively connect the upper end portion of the frame body 70 and the inner surface of the air storage tank body 20. Each of the eight tie rods 80 extends obliquely downward from the upper end portion of the frame body 70 to reach the inner surface of the air storage tank body 20. As shown in FIG. 2, a total of eight tie rods 80 are provided as described above by providing two tie rods 80 for each side of a square frame 70 in plan view.

(Example of usage procedure of the air storage tank 10)
Hereinafter, an example of a procedure for using the air storage tank 10 will be described. Moreover, the general effect produced when the heat storage body 30 of the air storage tank 10 includes a plurality of pipes 32 will also be described.

  The air storage tank 10 is supplied with air heated to a desired temperature on the compressor (not shown) side via a duct 84. The air is stored in the air storage tank body 20 through a flow path constituted by the nozzle tip 83, the nozzle skirt 82, and the pipe 32 (a plurality of pipes) of the heat storage body 30. At this time, each of the pipes 32 of the heat storage body 30 stores heat by the air and is stored.

  When the discharge valve (not shown) is opened, the air stored in the storage tank body 20 is discharged using the nozzle tip 83 as a discharge port. At this time, the air passes through the plurality of pipes 32 constituting a part of the flow path leading to the nozzle tip 83 and is released.

  According to the above configuration, when the air stored in the air storage tank body 20 is released, the air passes through the pipe 32 in the heat-stored state, so that a temperature decrease due to adiabatic expansion can be suppressed. As a result, moisture contained in the air does not solidify, and for example, it is possible to prevent an expensive model such as an airplane from being damaged by collision with ice or the like.

  Here, conventionally, a plurality of cans (hereinafter referred to as “a plurality of empty cans”) formed in a hollow shape and subjected to a plating process have been used as the heat storage body of the air storage tank. In this way, when a plurality of empty cans are used as the heat storage body, the passage of air becomes uneven. As a result, it becomes difficult to predict heat exchange, so it was necessary to increase the number of empty cans in order to increase the safety factor. (The heat storage capacity depends on the weight of the heat storage body and the heat transfer area. It is determined). Moreover, there existed a possibility that performance might fall because an empty can is crushed. Furthermore, when checking the openness of the storage tank body, it is necessary to take out multiple empty cans to the outside of the storage tank body because it becomes impossible to check the weld line on the inner surface of the storage tank body because it is hindered by multiple empty cans. was there. As a result, maintenance work has not been performed efficiently.

  On the other hand, when the heat storage body 30 includes a plurality of pipes 32 as in the air storage tank 10 according to the present embodiment, the passage of air becomes uniform. Thereby, since prediction of heat exchange becomes easy, a safety factor can be expected appropriately, and the weight of the heat storage body 30 can be reduced as compared with the plurality of empty cans. Moreover, since the pipe 32 of the heat storage body 30 is supported by other components (such as the frame body 70) disposed inside the air storage tank, the risk of damage can be suppressed and performance degradation can be suppressed. Can do. Furthermore, since the plurality of pipes 32 of the heat storage body 30 do not hinder the inspection of the weld line on the inner surface of the storage tank body during the opening inspection of the storage tank body 20, the plurality of pipes 32 are connected to the storage tank body 20. There is no need to take it out. This makes it possible to perform maintenance work efficiently.

(effect)
In the air storage tank 10 according to the present embodiment, since the plurality of pipes 32 are inserted and fixed to the plurality of insertion holes 48 formed in the fixing portion 40, the plurality of pipes 32 are Even if it vibrates when air (gas) passes through the inside, it is suppressed that it mutually contacts. As a result, it is possible to prevent the pipe 32 of the heat storage body 30 from being damaged.

  The air storage tank 10 according to the present embodiment includes the first fixing portion 40a and the second fixing portion 40b as the fixing portion 40, and, for example, a plurality of the fixing tanks 40 are provided as compared with the case where there is only one fixing portion 40. The pipes 32 are further prevented from contacting each other.

  In the present embodiment, the plurality of pipes 32 are divided into a plurality of units, and the fixing portion 40 includes a plurality of fixing plates 42 that are divided into the plurality of units. Therefore, since a plurality of pipes 32 can be removed in units, maintenance work can be performed by opening the manhole 22 and taking out the plurality of pipes 32 from the storage tank body 20 to the outside of the storage tank body 20, for example. Etc. can be performed efficiently. In addition, the air storage tank 10 can be easily assembled.

  The air storage tank 10 according to the present embodiment further includes a support portion 50, and a plurality of pipes 32 are inserted through the plurality of through holes 58 formed in the support portion 50, one by one. Even in the middle of the relatively long pipe 32, they are prevented from contacting each other.

  In the present embodiment, the plurality of pipes 32 are divided into a plurality of units, and the support portion 50 includes a plurality of support plates 52 that are divided for each of the plurality of units. Therefore, even when the support portion 50 is provided, the plurality of pipes 32 can be removed in units (in this embodiment, for each unit structure 60). For example, the manhole 22 is opened and air is stored from there. By taking out a plurality of pipes 32 in the unit of the outside of the tank body 20, maintenance work and the like can be performed efficiently. In addition, the air storage tank 10 can be easily assembled.

  In the air storage tank 10 according to the present embodiment, the fixed portion 40 is supported by the frame body 70, so that the vibration of the pipe 32 itself is suppressed.

  In the air storage tank 10 according to this embodiment, the frame body 70 and the air storage tank body 20 are connected by eight tie rods 80. Thereby, since the frame 70 is supported by the tie rod 80 and the air storage tank main body 20, seismic strength can be improved.

(Modification)
From the foregoing description, many modifications and other embodiments of the present invention are obvious to one skilled in the art. Accordingly, the foregoing description should be construed as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the invention. The details of the structure and / or function may be substantially changed without departing from the spirit of the invention.

  In the above embodiment, the case where the air storage tank 10 includes the two fixing portions 40 (that is, the first fixing portion 40a and the second fixing portion 40b) has been described. However, the present invention is not limited thereto, and only one fixing portion 40 is provided. May be provided, or three or more fixing portions 40 may be provided.

  In the said embodiment, the 2nd fixing | fixed part 40b is the 1st connection member which has connected the 2nd fixing plates 42b adjacent among 225 2nd fixing plates 42b and the 225 2nd fixing plates 42b. However, the present invention is not limited to this. For example, the second fixing portion 40b includes two or more 224 or less or 226 or more second fixing plates 42b, and a first connecting member 44 that connects adjacent second fixing plates 42b among them. , Or other structures.

  Or the 2nd fixing | fixed part 40b does not contain the 1st connection member 44 by being comprised by the 1st 2nd fixing plate 42b which can insert and fix all the pipes 32 of the thermal storage body 30. Also good. Since the same applies to the first fixing portion 40a, the description thereof will not be repeated here.

  In the above embodiment, the first connecting member 44 has been described with respect to the case where the adjacent second fixing plates 42b are connected to each other via the rod member 62. However, the first connecting member 44 is directly adjacent to the first connecting member 44 without using the rod member 62. The two fixed plates 42b may be connected to each other.

  In the said embodiment, although the air storage tank 10 demonstrated the case provided with the three support parts 50 (namely, 1st support part 50a, 2nd support part 50b, and 3rd support part 50c), it is not limited to this, One or two support portions 50 may be provided, or four or more support portions 50 may be provided. Alternatively, the air storage tank 10 may fix the pipe 32 of the heat storage body 30 only by the fixing portion 40 and may not include the support portion 50.

  In the said embodiment, the 1st support part 50a is the 2nd connection member which has connected adjacent 1st support plate 52a among 225 1st support plates 52a and 225 1st support plates 52a. However, the present invention is not limited to this. For example, the first support portion 50a includes two or more 224 or less or 226 or more first support plates 52a, and a second connecting member 54 that connects the adjacent first support plates 52a among them. , Or other structures.

  Or the 1st support part 50a does not contain the 2nd connection member 54 by being comprised by the 1st 1st support plate 52a which can insert and fix all the pipes 32 of the thermal storage body 30. Also good. In addition, since it is the same also about the 2nd support part 50b and the 3rd support part 50c, the description is not repeated here.

  In the above embodiment, the first support portion 50a has been described as including the plurality of first support plates 52a and the second connecting member 54 that connects the adjacent first support plates 52a. It is not limited to. For example, the 1st support part 50a is comprised by the 1st 1st support plate 52a, may not contain the 2nd connection member 54, or may be another structure. In addition, since it is the same also about the 2nd support part 50b and the 3rd support part 50c, the description is not repeated here.

  In the above embodiment, the case where the air storage tank 10 includes the eight tie rods 80 has been described, but the present invention is not limited to this. That is, the gas storage tank 10 may include one or more tie rods 80 or nine or more tie rods 80. Alternatively, if the pipe 32 of the heat storage body 30 can be securely fixed only by the frame body 70 and the nozzle skirt 82, the tie rod 80 may not be provided.

  In the above embodiment, the case where the air storage tank body 20 is spherical has been described, but the present invention is not limited to this. For example, the air storage tank body 20 may have a cylindrical shape in which both ends in the axial direction are closed or other shapes.

  In the above embodiment, the case where each of the plurality of pipes 32 extends in the height direction has been described. However, the present invention is not limited to this case. For example, the plurality of pipes 32 are arranged to extend in the horizontal direction if they constitute a part of the flow path leading to the air outlet (that is, the nozzle tip 83) stored in the air storage tank body 20. Or they may be arranged to extend in other directions.

  In the above embodiment, the case where the air storage tank 10 is used as a part of equipment for conducting a wind tunnel experiment has been described, but the present invention is not limited thereto, and may be used for other purposes.

DESCRIPTION OF SYMBOLS 10 Reservoir 20 Reservoir body 22 Manhole 30 Heat storage body 32 Pipe 33 Lower end 40 Fixing part 42 Fixing plate 43 Projection 44 First connection member 48 Insertion hole 49 Hole 50 Support part 52 Support plate 54 Second connection member 58 Through Hole 59 Hole 60 Unit structure 62 Rod member 63 Male screw part 64 Spacer 66, 68 Nut 70 Frame 72 Mounting base 73 Flat plate 74 Internal space 80 Tie rod 82 Nozzle skirt 83 Nozzle tip 84 Duct 85 Post

Claims (7)

A reservoir body for storing gas;
A heat storage body including a plurality of pipes arranged inside the air storage tank body and constituting a part of a flow path leading to a discharge port of gas stored in the air storage tank body;
A fixing portion in which a plurality of insertion holes are formed,
The air storage tank, wherein the plurality of pipes are inserted and fixed to a plurality of insertion holes formed in the fixing portion. A first fixing portion and a second fixing portion as the fixing portion;
The first fixing portion is provided with respect to one end portion in the axial direction of the plurality of pipes,
The air storage tank according to claim 1, wherein the second fixing portion is provided with respect to the other end portion in the axial direction of the plurality of pipes. The plurality of pipes are divided into a plurality of units,
The fixing part is
A plurality of fixing plates divided for each of the plurality of units;
A first connecting member connecting adjacent fixing plates among the plurality of fixing plates;
The air reservoir according to claim 1 or 2, comprising A plurality of through holes are provided, and further includes a support portion provided between the first fixing portion and the second fixing portion in the axial direction of the plurality of pipes;
The air storage tank according to claim 2 or 3, wherein each of the plurality of pipes is inserted into a plurality of through holes formed in the support portion. The plurality of pipes are divided into a plurality of units,
The support part is
A plurality of support plates divided for each of the plurality of units;
A second connecting member connecting adjacent support plates among the plurality of support plates;
The air reservoir according to claim 4, comprising:   The air reservoir according to any one of claims 1 to 5, further comprising a frame body provided outside the plurality of pipes, wherein the fixing portion is fixed to the frame body.   The gas storage tank according to claim 6, further comprising at least one tie rod connecting the frame body and the gas storage tank main body.

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