Cylinder retaining member and cylinder rack

Abstract

The cylinder retaining member and cylinder rack are designed to appropriately restrain the vertical movement of the cylinder. [Solution] A cylinder holding member for holding the upper end of a cylinder supported in an upright position on a cylinder rack comprises a support member extending horizontally from the cylinder rack toward both sides of the attachment portion of the upper end of the cylinder, a plurality of holding rods provided on the support member so as to be movable vertically, and a restraining member that restrains the plurality of holding rods to the support member at a position where the lower ends of the plurality of holding rods are in contact with the upper end of the cylinder.

Description

Technical Field

[0004] , , ,

[0001] The present disclosure relates to a cylinder holding member and a cylinder rack.

Background Art

[0002] For example, in a nuclear power plant, gas supply facilities for supplying a predetermined gas to various systems are provided. The gas supply facilities are configured by a plurality of cylinders for storing gas being supported by a cylinder rack. The cylinder rack has a frame shape, supports a plurality of cylinders in a standing state, and has a structure that prevents tipping by a chain or the like. Further, the cylinder rack is provided with a cylinder holding member that prevents the cylinders from floating upward in the vertical direction when an earthquake occurs. Such a cylinder rack is, for example, the one described in Patent Document 1.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The upper end of a gas cylinder is spherical. When properly holding the upper end of a gas cylinder with a cylinder retaining plate, it is preferable to make contact with the upper end of the gas cylinder at multiple points. Conventional gas cylinder racks hold the upper end of a gas cylinder with a cylinder retaining plate that has a U-shaped groove. However, when the U-shaped groove of the cylinder retaining plate is to make contact with the spherical upper end of a gas cylinder at multiple points, vertical and horizontal position adjustments of the cylinder retaining plate are necessary. Therefore, there is a problem that it takes a long time to adjust the position of the cylinder retaining plate. In addition, when replacing a gas cylinder supported by a gas cylinder rack, it is necessary to shift the position of the gas cylinder to adjust it, which requires effort and time. Furthermore, because the upper end of a gas cylinder is spherical, variations in the manufacturing precision of the cylinder retaining plate may reduce the number of contact points between the cylinder retaining plate and the spherical part of the gas cylinder (for example, contact at only one point), which may result in insufficient support of the gas cylinder.

[0005] This disclosure aims to solve the aforementioned problems and to provide a cylinder retaining member and a cylinder rack that can appropriately restrain the vertical movement of a cylinder. [Means for solving the problem]

[0006] To achieve the above objective, the cylinder retaining member of the present disclosure is a cylinder retaining member for holding the upper end of a cylinder supported in an upright position on a cylinder rack, comprising: a support member extending horizontally from the cylinder rack toward both sides of an attachment to the upper end of the cylinder; a plurality of retaining rods provided on the support member so as to be movable vertically; and a restraining member that restrains the plurality of retaining rods to the support member at a position where the lower ends of the plurality of retaining rods are in contact with the upper end of the cylinder.

[0007] Furthermore, the cylinder rack of this disclosure comprises a frame-shaped frame and a cylinder retaining member as described in claim 1, which is attached to the frame. [Effects of the Invention]

[0008] The cylinder retaining member and cylinder rack of this disclosure can appropriately restrain the vertical movement of the cylinder. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a front view showing the cylinder rack of this embodiment. [Figure 2] Figure 2 is a side view of the cylinder rack. [Figure 3] Figure 3 is a plan view of the cylinder rack. [Figure 4] Figure 4 is a plan view showing the horizontal support configuration of the cylinder. [Figure 5] Figure 5 is a perspective view showing the support state of the cylinder by the cylinder retaining member. [Figure 6] Figure 6 is a plan view showing the cylinder retaining member. [Figure 7] Figure 7 is a front view showing the cylinder retaining member. [Figure 8] Figure 8 is a partially cutaway side view showing the cylinder retaining member. [Modes for carrying out the invention]

[0010] Preferred embodiments of the present disclosure will be described in detail below with reference to the drawings. However, these embodiments do not limit the present disclosure, and where there are multiple embodiments, they may be combinations of these embodiments. Furthermore, the components in the embodiments include those readily conceivable by those skilled in the art, those that are substantially identical, and those that are equivalent.

[0011] [Embodiment] <Cylinder rack> Figure 1 is a front view of the cylinder rack of this embodiment, Figure 2 is a side view of the cylinder rack, Figure 3 is a top view of the cylinder rack, and Figure 4 is a top view showing the horizontal support state of the cylinders.

[0012] As shown in Figures 1 to 3, the cylinder rack 10 is constructed of a frame-shaped structure. The bottom frame member 11 is installed on the floor, and vertical frame members 12 are arranged vertically at the four corners. The vertical frame members 12 at the four corners are connected by multiple horizontal frame members 13, 14, and 15. In addition, the cylinder rack 10 has two beam frame members 16 arranged horizontally inside. The two beam frame members 16 are connected to and supported by the vertical frame members 12 and the horizontal frame members 13, 14, and 15. Each vertical frame member 12 is connected by an upper frame. However, the cylinder rack 10 is not limited to this configuration. For example, the cylinder rack 10 may have a box-shaped frame structure made of frame members made of shaped steel.

[0013] The cylinder rack 10 houses multiple cylinders 20 (12 in this embodiment) and supports each cylinder 20 horizontally. The cylinders 20 are supported horizontally in an upright position inside the cylinder rack 10. The cylinder 20 has a body portion 21, a spherical portion 22, and an attachment portion 23. The body portion 21 is cylindrical with a bottom, and the spherical portion 22 is integrally provided at the top. The attachment portion 23 is integrally provided at the upper end of the spherical portion 22. The attachment portion 23 includes, for example, an openable and closable valve, and the valve is directly connected to the upper end of the spherical portion 22 and piping is connected to the valve, or piping is connected to the upper end of the spherical portion 22 and a valve is provided on the piping. The cylinder 20 is filled with gas (for example, nitrogen gas, hydrogen gas, oxygen gas, air, etc.) in a compressed state.

[0014] Furthermore, as shown in Figure 4, the cylinder 20 is supported horizontally by U-shaped support bolts 17. The support bolts 17 are arranged to surround the body 21 of the cylinder 20, and each end is fixed to the beam frame member 16 by nuts 18. It is preferable that the support bolts 17 are provided at multiple locations spaced apart in the vertical direction of the cylinder 20. Note that the support bolts 17 may be replaced with support chains or the like.

[0015] The cylinder rack 10 is provided with a plurality (in this embodiment, 12) of cylinder pressing members 30 at the upper part. The cylinder pressing members 30 are provided in the same number as the cylinders 20 supported by the cylinder rack 10. The cylinder pressing members 30 are attached to the beam frame member 16. The cylinder pressing members 30 prevent the cylinders 20 from vertically rising by pressing the upper ends of the cylinders 20 supported in a standing state on the cylinder rack 10. Note that the cylinder pressing members 30 may be supported by other frame members instead of being supported by the beam frame member 16.

[0016] <Cylinder pressing member> FIG. 5 is a perspective view showing the support state of the cylinder by the cylinder pressing member.

[0017] As shown in FIG. 5, the cylinder pressing member 30 includes an attachment member 31, a support member 32, a plurality (in this embodiment, 4) of pressing rods 33, and a plurality (in this embodiment, 4) of nuts (constraint members) 34 (see FIG. 7). The attachment member 31 is fixed to the beam frame member 16, and the support member 32 is fixed to the attachment member 31. The plurality of pressing rods 33 are attached to the support member 32, and the plurality of nuts 34 are fixed to the support member 32. Note that the number of the pressing rods 33 and the nuts 34 is four, but it is not limited to four, and two or more may be provided.

[0018] FIG. 6 is a plan view showing the cylinder pressing member, FIG. 7 is a front view showing the cylinder pressing member, and FIG. 8 is a partially cut-away side view showing the cylinder pressing member. In the following description, the horizontal direction parallel to the beam frame member 16 is referred to as the X direction, the horizontal direction orthogonal to the beam frame member 16 is referred to as the Y direction, and the vertical direction orthogonal to the beam frame member 16 is referred to as the Z direction. The X direction, the Y direction, and the Z direction are orthogonal to each other.

[0019] As shown in Figures 6 to 8, the mounting member 31 is fixed to the beam frame member 16. The beam frame member 16 has an L-shaped cross-section and is arranged along the X direction. The mounting member 31 has an L-shaped cross-section and has a horizontal portion 31a and a vertical portion 31b. The horizontal portion 31a of the mounting member 31 is placed on the horizontal portion 16a of the beam frame member 16 and fastened to the beam frame member 16 by a plurality (two in this embodiment) of bolts 41 and a plurality (two in this embodiment) of nuts 42. The mounting member 31 has an elongated hole 31c formed in the horizontal portion 31a along the Y direction, and the bolts 41 are inserted through the elongated hole 31c and screwed into the nuts 42. Therefore, the fixing position of the mounting member 31 relative to the beam frame member 16 can be adjusted along the Y direction. In other words, the elongated hole 31c constitutes a position adjustment mechanism. Furthermore, the mounting member 31 is provided with a plurality (two in this embodiment) of reinforcing parts 31d that are connected to the horizontal part 31a and the vertical part 31b.

[0020] The mounting member 31 has a horizontal portion 31a fixed to the beam frame member 16 and a vertical portion 31b extending upward in the vertical direction, i.e., in the Z direction. The support member 32 is connected to the upper part of the vertical portion 31b of the mounting member 31. The support member 32 extends horizontally from the mounting member 31 fixed to the beam frame member 16 toward both sides of the attachment portion 23 of the cylinder 20. The support member 32 has a connecting member 51 and two support pieces 52. The connecting member 51 has an L-shaped cross section and has a vertical portion 51a and a horizontal portion 51b. The connecting member 51 has a vertical portion 51a that contacts the vertical portion 31b of the mounting member 31 and is fastened to the mounting member 31 by a plurality (two in this embodiment) of bolts 43 and a plurality (two in this embodiment) of nuts 44. The mounting member 31 has an elongated hole 31e formed in the vertical portion 31b that is aligned with the X direction. The bolt 43 is inserted through the elongated hole 31e and screwed into the nut 44. Therefore, the fixing position of the connecting member 51 relative to the mounting member 31 can be adjusted along the X direction. In other words, the elongated hole 31e constitutes a position adjustment mechanism.

[0021] The two support pieces 52 are integrally connected at their base ends to the horizontal portion 51b of the connecting member 51. The support piece 52 has an L-shaped cross-section and has a horizontal portion 52a and a vertical portion 52b. The horizontal portion 52a of the support piece 52 is integrally connected to the tip of the horizontal portion 51b of the connecting member 51. The vertical portion 52b is integrally provided on the outside of the horizontal portion 52a of the support piece 52. The base end of the vertical portion 52b extends to the vertical portion 51a of the connecting member 51 and is integrally connected to the vertical portion 51a and the horizontal portion 51b, for example, by welding.

[0022] The two support pieces 52 have their base ends connected to the connecting member 51, and their tips are positioned on both sides of the attachment portion 23. The two support pieces 52 are positioned along the Y direction and parallel to each other with a gap in the X direction. The two support pieces 52 are positioned above the spherical portion 22 of the cylinder 20, on both sides of the attachment portion 23 with a gap in between. That is, the two support pieces 52 are symmetrical with respect to the center O1 of the cylinder 20 on both sides in the X direction. The strength of the support member 32 can be improved by providing ribs as reinforcing materials or by forming it from structural steel.

[0023] The four retaining rods 33 are mounted on the support member 32 so as to be movable along the Z direction. Two retaining rods 33 are attached to each of the two support pieces 52. It is preferable that the four retaining rods 33 are located at the same distance from the center of the cylinder 20 supported by the cylinder rack 10. That is, if the center of the cylinder 20 is O1 and the centers of the four retaining rods 33 are O2, it is preferable that the distance from the center O1 to the centers O2 of the four rods is the same.

[0024] The retaining rod 33 has a male threaded portion 33a on the outer circumference of a part of its shaft. The retaining rod 33 is inserted from above into a through hole (not shown) formed in the support piece 52. The retaining rod 33 may have a threaded portion along its entire length. Alternatively, the retaining rod 33 may be a bolt having a head, a shaft, and a threaded portion.

[0025] The four nuts 34 are provided on the support member 32. Similar to the retaining rods 33, two nuts 34 are attached to each of the two support pieces 52. It is preferable that the four nuts 34 are located at the same distance from the center of the cylinder 20 supported by the cylinder rack 10. That is, if the center of the cylinder 20 is O1 and the centers of the four retaining rods 33 are O2, it is preferable that the distance from the center O1 to the centers O2 of the four nuts is the same.

[0026] The nut 34 has a female threaded portion (not shown) on its inner circumference. The nut 34 is fixed to the lower surface of the support piece 52 concentrically with the through hole through which the retaining rod 33 passes, for example by welding. The nut 34 is fitted when the retaining rod 33 is inserted from above into the through hole of the support piece 52 and the retaining rod 33 rotates, causing the male threaded portion 33a of the retaining rod 33 to screw into the female threaded portion. When the retaining rod 33 rotates in the forward direction with the male threaded portion 33a screwed into the female threaded portion of the nut 34, it moves vertically downward relative to the support piece 52, and when it rotates in the reverse direction, it moves vertically upward relative to the support piece 52.

[0027] Then, as the four retaining rods 33 rotate in the forward direction with their male threaded portions 33a screwed into the female threaded portions of the nuts 34, they move downward and stop when their lower ends contact the spherical portion 22 of the cylinder 20. At this time, with each male threaded portion 33a of the four retaining rods 33 screwed into the female threaded portions of the nuts 34 fixed to the support piece 52, their lower ends come into contact with the spherical portion 22 of the cylinder 20, thus restraining the retaining rods 33 to the support member 32. Then, with the four retaining rods 33 restrained to the support member 32, their lower ends press against the spherical portion 22 of the cylinder 20, thereby preventing the cylinder 20 from floating up. The nuts 34 may also be fixed to the upper surface of the support piece 52.

[0028] The cylinder retaining member 30 is not limited to the configuration described above. For example, the mounting member 31 and the support member 32 may be an integral structure rather than being fastened with bolts. Also, although the support member 32 is made of steel with an L-shaped cross-section, it may be made of steel with a U-shaped or H-shaped cross-section, or a flat plate of a predetermined thickness.

[0029] Furthermore, although the retaining rod is designated as a retaining rod 33 and the restraining member as a nut 34, the configuration is not limited to this. For example, the retaining rod may be a rod-shaped rod without a male thread, movably supported by the support member, and the restraining member may be a locking mechanism, allowing the rod to be restrained to the support member by the locking mechanism. In this case, the locking mechanism may be, for example, a restraining device provided on the support member that clamps the outer circumference of the rod. Also, although a nut 34 was used as the restraining member, a female thread may be provided in the through-hole of the support member 32 through which the retaining rod 33 passes.

[0030] <Method for supporting the gas cylinder> As shown in Figures 1 to 4, multiple cylinders 20 are supported in an upright position inside the cylinder rack 10. Furthermore, each of the multiple cylinders 20 supported by the cylinder rack 10 is prevented from tipping over by support bolts 17. In addition, each of the multiple cylinders 20 supported by the cylinder rack 10 is prevented from lifting up by cylinder retaining members 30.

[0031] In other words, a cylinder 20 supported in an upright position on the cylinder rack 10 has a cylinder retaining member 30 attached to its upper side. The cylinder retaining member 30 is fastened to the beam frame member 16 by bolts 41 and nuts 42 via a mounting member 31. At this time, the horizontal position of the cylinder retaining member 30 relative to the cylinder 20 is adjusted. Specifically, the Y-direction position of the mounting member 31 relative to the beam frame member 16 is adjusted by the elongated hole 31c, and the X-direction position of the support member 32 relative to the mounting member 31 is adjusted by the elongated hole 31e. At this time, the distance from the center O1 of the cylinder 20 to the center O2 of the four retaining rods 33 is made the same.

[0032] The cylinder holding member 30 has multiple holding rods 33 attached to each support piece 52. The operator rotates each holding rod 33 in the forward direction and moves downward. As a result, each holding rod 33 stops when its lower end comes into contact with the spherical portion 22 of the cylinder 20. At this time, since each holding rod 33 is supported by the support member 32 via each nut 34, each holding rod 33 is restrained by the support member 32 at the position where its lower end comes into contact with the spherical portion 22 of the cylinder 20. Therefore, the cylinder 20 is prevented from lifting up as its spherical portion 22 is pressed against each holding rod 33.

[0033] [Effects of this embodiment] The cylinder holding member according to the first embodiment is a cylinder holding member 30 that holds the upper end of a cylinder 20 supported in an upright position on a cylinder rack 10, and comprises a support member 32 extending horizontally from the cylinder rack 10 toward both sides of the attached portion 23 of the upper end of the cylinder 20, a plurality of holding rods 33 provided on the support member 32 so as to be movable in the vertical direction, and nuts (restraining members) 34 that restrain the plurality of holding rods 33 to the support member 32 at a position where the lower ends of the plurality of holding rods 33 are in contact with the upper end of the cylinder 20.

[0034] According to the first embodiment of the cylinder retaining member, a plurality of retaining rods 33 provided on the support member 32 are rotated to move downward, and when the lower end of the retaining rod 33 contacts the spherical portion 22 of the cylinder 20, the retaining rod 33 is restrained to the support member 32 by a nut 34. Since the plurality of retaining rods 33 descend individually and their lower ends contact the spherical portion 22 of the cylinder 20, the vertical position of the plurality of retaining rods 33 relative to the cylinder 20 is easily adjusted, and by properly contacting the plurality of retaining rods 33 with the cylinder 20, the vertical movement of the cylinder 20 can be properly restrained.

[0035] The cylinder retaining member according to the second embodiment is the cylinder retaining member according to the first embodiment, further comprising a retaining rod 33 having a male threaded portion 33a on its outer circumference and a nut 34 having a female threaded portion provided on the support member 32. This simplifies the structure by using the retaining rod 33 and nut 34.

[0036] The cylinder retaining member according to the third embodiment is the cylinder retaining member according to the second embodiment, further comprising a retaining rod 33, a support member 32 having a through hole through which the retaining rod 33 passes, and a nut 34 fixed to the support member 32 concentrically with the through hole. This allows the retaining rod 33 to be movably supported by the support member 32, and the retaining rod 33 to be appropriately restrained by the nut 34.

[0037] The cylinder retaining member according to the fourth embodiment is a cylinder retaining member according to any one of the first to third embodiments, further comprising two support pieces 52 positioned on both sides of the attachment 23, and two retaining rods 33 provided on each of the two support pieces 52, positioned at the same distance from the center of the cylinder 20. As a result, the spherical portion 22 of the cylinder 20 is evenly pressed by the four retaining rods 33, thereby preventing the cylinder 20 from moving horizontally and effectively preventing vertical movement.

[0038] The fifth embodiment of the cylinder retaining member is a cylinder retaining member according to any one of the first to fourth embodiments, and further includes a mounting member 31 that is fixed vertically to the cylinder rack 10, and a support member 32 is connected to the upper part of the mounting member 31 and extends toward both sides of the attachment part 23. This improves ease of assembly by fixing the support member 32 to the cylinder rack 10 via the mounting member 31, and allows the support member 32 to extend appropriately toward both sides of the attachment part 23.

[0039] The cylinder retaining member according to the sixth embodiment is a cylinder retaining member according to the fifth embodiment, further comprising two support pieces 52 arranged on both sides of the attachment 23 and a connecting member 51 connecting the base ends of the two support pieces 52, the connecting member 51 being connected to the upper part of the mounting member 31. By composing the support member 32 from two support pieces 52 and a connecting member 51, the support pieces 52 can be appropriately positioned on both sides of the attachment 23.

[0040] The cylinder retaining member according to the seventh embodiment is a cylinder retaining member according to the fifth or sixth embodiment, further provided with elongated holes 31c and 31e as a position adjustment mechanism for moving the support member 32 horizontally relative to the mounting member 31 to adjust its position. This makes it easy to adjust the horizontal position of the multiple retaining rods 33 relative to the cylinder 20.

[0041] The cylinder retaining member according to the eighth embodiment is a cylinder retaining member according to any one of the first to seventh embodiments, and furthermore, the support member 32 is provided with a reinforcing material on its flat surface. This improves the strength of the support member 32.

[0042] The cylinder rack according to the ninth embodiment comprises a frame-shaped frame and a cylinder retaining member 30 attached to the frame. This allows for the proper restraint of the vertical movement of multiple cylinders 20 by appropriately contacting each of the multiple retaining rods 33 of the cylinder retaining member 30 with the cylinders 20. [Explanation of symbols]

[0043] 10 Cylinder rack 11 Bottom frame member 12 Vertical frame members 13, 14, 15 Horizontal frame members 16 Beam frame members 20 cylinders 21 Torso 22 Spherical shape part 23. Accessories 30 Cylinder retaining member 31 Mounting components 31c, 31e long hole (position adjustment mechanism) 32 Support member 33 Retaining Rod 34. Nut (retaining material) 41,43 volts 42,44 nuts 51 Connecting material 52 Support piece

Claims

1. In a cylinder retaining member that holds down the upper end of a cylinder supported in an upright position on a cylinder rack, Support members extending horizontally from the cylinder rack toward both sides of the attachment portion at the upper end of the cylinder, Multiple retaining rods are provided on the support member so as to be movable along the vertical direction, A restraining member that restrains the plurality of retaining rods to the support member at the position where the lower ends of the plurality of retaining rods are in contact with the upper end of the cylinder, A cylinder retaining member equipped with [a specific feature].

2. The retaining rod has a male threaded portion on its outer circumference, and the restraining member has a female threaded portion provided on the support member. The cylinder retaining member according to claim 1.

3. The retaining rod is a bolt having the male threaded portion, the support member has a through hole through which the bolt passes, and the restraining member is a nut having the female threaded portion fixed concentrically to the support member with the through hole. The cylinder retaining member according to claim 2.

4. The support member has two support pieces positioned on both sides of the attachment, and two retaining rods are provided on each of the two support pieces, with the four retaining rods positioned at the same distance from the center of the cylinder. The cylinder retaining member according to claim 1.

5. The cylinder rack has a mounting member fixed vertically along it, and the support member is connected to the upper part of the mounting member and extends toward both sides of the attachment, The cylinder retaining member according to claim 1.

6. The support member comprises two support pieces positioned on both sides of the attachment and a connecting member connecting the base ends of the two support pieces, the connecting member being connected to the upper part of the mounting member. The cylinder retaining member according to claim 5.

7. The mounting member has a position adjustment mechanism that moves the support member horizontally to adjust its position. The cylinder retaining member according to claim 6.

8. The support member has a reinforcing material provided on its flat surface. The cylinder retaining member according to claim 1.

9. A frame that forms a frame shape, A cylinder retaining member according to claim 1, which is attached to the frame, A cylinder rack equipped with this feature.

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