TWI511910B - Piston rotation prevention devices for gas storage equipment and gas storage equipment - Google Patents

Description

Piston rotation preventing device and gas storage device for gas storage device

The present invention relates to a piston rotation preventing device and a gas storage device for preventing rotation of a piston of a gas storage device.

In the gas storage device, for example, the gas holder shown in Patent Document 1 has a base column that is annularly arranged at a predetermined interval in a vertical direction, and a cylindrical plate that is formed between the inner peripheral portions of the base column. The bracket body, inside the bracket body, allows the piston of the cover member to be lifted and lowered. Further, the gas is stored in the internal space of the holder body which becomes the lower portion of the piston. And, the piston is lifted and lowered in accordance with the pressure of the stored gas. The piston is provided at its outer peripheral portion with a guide roller that is in contact with the base post of the bracket body. The guide roller moves up and down while being in contact with the base column as the piston moves up and down. The piston is constructed by guiding the rollers so that the inclination is prevented and the movement is smoothly performed. Further, the piston is provided at its outer peripheral portion with a sealing member that is pressed against the circumferential surface of the holder body and an oil groove that is closed by the sealing member. Further, the air pressure of the piston and the holder body is maintained by the hydraulic pressure of the seal oil retained in the oil groove and the surface pressure of the seal member in contact with the inner peripheral surface of the holder body.

If the piston is rotated around the axis in the up-and-down direction for any reason, and the position of the guide roller is detached from the base column, the side plate may be locally deformed by the pressing force of the guide roller, and the oil may not be maintained. The airtightness produced by the groove and the sealing member.

According to the invention of Patent Document 1, a holding member for holding a sealing member that is in contact with a side plate of the holder main body is provided in the oil groove. The holding member is one end of a rotatably disposed operating rod fixed to the cross frame of the piston, and the other end of the operating rod is provided with a counterweight, and the sealing member is crimped to the bracket on the piston side by the load of the counterweight The side plate of the body is constructed in a manner. Further, the holding member is provided with a pair of rollers through the roller supporting member. On the other hand, the holder body is a rotation preventing member having a convex cross section along the inner column of the inner surface of the base post, and rollers are disposed on both sides of the rotation preventing member. The roller is rotated along the side surface of the rotation preventing member along with the lifting and lowering of the piston. Further, the rotation of the piston is prevented by the rotation preventing member and the roller.

[Practical Technical Literature] [Patent Literature]

[Patent Document 1] JP-A-58-137695

In Patent Document 1, the roller is a holding member provided to hold the sealing member, and the holding member is pressed toward the rotation preventing member side by the weight. However, for example, an external force that is subjected to a vertical direction by an earthquake or the like In this case, the weight moves upward and the load is invalidated, and the pressing force that pushes the holding member toward the rotation preventing member side is impaired. In this case, the holding member is movable in a direction away from the rotation preventing member. At the same time, when a horizontal force is applied, a pair of rollers are detached from the side portion of the rotation preventing member. Further, when the external force in the horizontal direction of the piston is simultaneously received, the roller is detached from the rotation preventing member in the horizontal direction by the rotational movement of the piston, so that the roller cannot be returned to the original position.

The present invention has been made in view of the above problems, and an object thereof is to provide a piston rotation preventing device and a gas storage device for a gas storage device, which can maintain a rotation preventing function of a piston.

In order to achieve the above-described object, the piston rotation preventing device of the gas storage device according to the first aspect of the invention includes a gas storage device including a cylindrical storage unit and a piston that is vertically movable inside the storage unit body. a pair of claw members that protrude inward from the inner surface of the storage unit body and extend in the vertical direction, and a pair of claw members that are disposed on the piston and disposed on both side portions of the protrusion, by the protrusions The abutment of the claw member restricts a rotational movement of the piston around the axial center in the vertical direction, and is provided to be supported by the piston side so as to be slidably movable in the radial direction of the storage unit body. a sliding member of the claw member, a rotating shaft provided on the piston side perpendicular to a moving direction of the sliding member, and a rotating shaft rotatably supported on the rotating shaft and having a front end side that is disposed to be grounded with the sliding member Abutment operation The lever and a spring provided in the vicinity of the rear end of the operation lever to abut the abutting portion of the operation lever and the sliding member to generate a pressing force for pressing the claw member toward the protrusion side.

According to the piston rotation preventing device of the gas storage device, since the pressing force for pushing the claw member toward the protruding side by the spring occurs at any time, even if an external force in the vertical direction and the horizontal direction is received by an earthquake or the like, the pressing force is applied. It will not be derogated. As a result, the rotation preventing function of the piston can be maintained.

According to the first aspect of the invention, the piston rotation preventing device of the gas storage device according to the second aspect of the invention is characterized in that each of the claw members and the sliding member are independently movably provided, and the operation lever and the spring correspond to the respective claw members. Don't set it up independently.

According to the piston rotation preventing device of the gas storage device, each of the claw members is independently movably provided together with the sliding member, and the pressing force is applied to each of the claw members individually by the operation lever and the spring which are independent of the claw members. Therefore, even if the sliding direction of the sliding member causes the ridge to be inclined, the external force is relatively applied to the ridge side and the claw member side, since each of the claw members is pressed against the ridge side independently, and can be followed. Since the relative movement of the ridge side and the claw member side is suppressed, the state in which the claw member is detached from the ridge can be suppressed. As a result, the rotation preventing function of the piston can be maintained.

According to the first or second aspect of the invention, the piston rotation preventing device of the gas storage device according to the third aspect of the present invention includes the fitting means for allowing the claw member to move up and down in the extending direction of the ridge, and to restrict the movement toward The manner in which the claw member in the radial direction of the storage unit body moves is The protrusion and the claw member are fitted.

According to the piston rotation preventing device of the gas storage device, by restricting the movement of the claw member in the radial direction of the storage portion main body by the fitting means, it is possible to further suppress the situation in which the claw member is detached from the ridge. As a result, the rotation preventing function of the piston can be maintained.

The piston rotation preventing device of the gas storage device according to the fourth aspect of the invention is the gas storage device including a cylindrical storage unit and a piston that is vertically movable inside the storage unit body, and includes the storage unit. a protrusion protruding inward in the inner surface of the main body and extending in the vertical direction, and a pair of claw members provided on the piston and disposed on both side portions of the protrusion, by the claw member facing the protrusion The rotation of the piston around the axis around the vertical direction is restricted, and the sliding movement of each of the claw members supported by the piston side in the radial direction of the storage unit body is provided. a member, a rotation shaft provided on the piston side perpendicular to a moving direction of the sliding member, and an operation of rotatably supporting the rotation shaft and having an abutting portion provided on the tip end side with respect to the sliding member a rod and a contact portion of the operation lever abutting against the sliding member in the vicinity of a rear end of the operation lever to impart a side pushing the claw member toward the protrusion The weight of the load and the vertical movement of the claw member in the extending direction of the protrusion and restricting the movement of the claw member in the radial direction of the storage unit body to embed the protrusion and the claw member Cohesive means.

According to the piston rotation preventing device of the gas storage device, the claw toward the radial direction of the storage portion body is restricted by the fitting means The movement of the member can suppress the situation in which the claw member is detached from the ridge. As a result, the rotation preventing function of the piston can be maintained.

In order to achieve the above object, a gas storage device according to the present invention includes a tubular storage unit body and a gas storage device that is provided with a piston that is vertically movable inside the storage unit body, and is characterized in that: the upward and downward directions are restricted. The piston rotation preventing device according to any one of the first to fourth inventions is provided in a manner of rotating the piston around the shaft.

According to this gas storage device, the rotation preventing function of the piston can be maintained by the piston rotation preventing means, and even if an external force in the vertical direction and the horizontal direction is received, the stored gas can be prevented from leaking out.

According to the present invention, the rotation preventing function of the piston can be maintained even if an external force is applied.

1‧‧‧Storage Department Ontology

2‧‧‧ side panels

2a‧‧‧cutting section

3‧‧‧ housing

4‧‧‧ Foundation

5‧‧‧ Corridor

6‧‧‧Base column

6A‧‧‧Base column

6B‧‧‧Base column

7‧‧‧ gas inlet and outlet pipe

8‧‧‧Piston

8a‧‧‧Support frame

8b‧‧‧Upper guide roller

8c‧‧‧ lower guide roller

8d‧‧‧deck

8e‧‧‧ foot ring

8f‧‧‧balanced concrete

10‧‧‧ Sealing mechanism

11‧‧‧Upper sealing rubber

12‧‧‧ Lower sealing rubber

13‧‧‧ spacer

14‧‧‧ Keep accessories

15‧‧‧ hanging materials

16‧‧‧Support frame

20‧‧‧ linkage mechanism

21‧‧‧Frame

22‧‧‧ triangle frame

23‧‧‧ bracket

24a‧‧‧ spindle

24b‧‧‧ spindle

24c‧‧‧ fulcrum

30‧‧‧With weight department

31‧‧‧ bracket

32‧‧‧ Arm

33‧‧‧ fulcrum

34‧‧‧weight

35‧‧‧ Pull wire

41‧‧‧Shielding board

42‧‧‧canvas

46‧‧‧ Sealing oil circulation device

47‧‧‧ Sealing oil riser

48‧‧‧Prepared oil tank

50‧‧‧Piston rotation prevention device

51‧‧‧

51a‧‧‧Front

51b‧‧‧ Side section

51c‧‧‧ convex (fitting means)

51d‧‧‧ recess (fitting means)

52‧‧‧Chimeric institutions

53‧‧‧Support table

53a‧‧‧Sliding support

53b‧‧‧ bracket

53c‧‧‧ bracket

54‧‧‧Fixed Department

55‧‧‧ claw members

55a‧‧‧Front

55b‧‧‧ Side section

55c‧‧‧Connected components

55d‧‧‧ recess (fitting means)

55e‧‧‧ convex (fitting means)

56‧‧‧Sliding members

57‧‧‧Rotary axis

58‧‧‧Operator

58a‧‧‧Apartment

58b‧‧‧Connected components

58c‧‧‧ inserted through hole

59‧‧‧ Spring

60‧‧‧weight

[Fig. 1] A side view of a gas storage device of an embodiment of the present invention.

[Fig. 2] A cross-sectional view showing a gas storage device according to an embodiment of the present invention, which is cut in a direction perpendicular to the vertical direction.

[Fig. 3] A schematic view of a longitudinal section of the gas storage device according to the embodiment of the present invention, which is cut by the center of the piston.

Fig. 4 is a cross-sectional view showing a sealing mechanism between a side plate and a seal rubber of a gas storage device according to an embodiment of the present invention.

[Fig. 5] A perspective view showing a piston rotation preventing device according to a first embodiment of the present invention.

[Fig. 6] A side view showing a piston rotation preventing device according to a first embodiment of the present invention.

[Fig. 7] A plan view showing a piston rotation preventing device according to a first embodiment of the present invention.

[Fig. 8] A plan view showing a piston rotation preventing device according to a second embodiment of the present invention.

[Fig. 9] A plan view showing a piston rotation preventing device according to a third embodiment of the present invention.

[Fig. 10] A plan view showing a piston rotation preventing device according to a third embodiment of the present invention.

[Fig. 11] A plan view showing a piston rotation preventing device according to a third embodiment of the present invention.

[12] Fig. 12 is a perspective view showing a piston rotation preventing device according to a fourth embodiment of the present invention.

[Fig. 13] A plan view showing a piston rotation preventing device according to a fourth embodiment of the present invention.

[Fig. 14] A view showing an analysis result of a piston rotation preventing device of a conventional example.

[Fig. 15] Fig. 15 is a view showing an analysis result of the piston rotation preventing device of the embodiment.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. Further, the present invention is not limited by the embodiment. Further, among the constituent elements in the following embodiments, those skilled in the art can be easily replaced or substantially identical.

Fig. 1 is a side view showing the gas storage device of the present embodiment. Fig. 2 is a schematic cross-sectional view showing the gas storage device of the present embodiment cut in a direction perpendicular to the vertical direction. Fig. 3 is a view showing a longitudinal section of the gas storage device of the present embodiment taken along the center of the piston. Fig. 4 is a cross-sectional view showing the sealing mechanism between the side plates and the seal rubber of the gas storage device of the present embodiment.

As shown in FIGS. 1 to 3, the gas storage device is a storage unit body 1 having a cylindrical outer shape. The storage unit main body 1 has a side panel 2 that is erected in a cylindrical shape on the foundation 4 (refer to FIG. 3), and an eaves 3 that is provided at the top of the side panel 2. Moreover, the side panel 2 is reinforced by the corridor 5 and the base pillar 6.

As shown in Fig. 2, the base posts 6 are arranged in a plurality in the circumferential direction along the side plates 2. The base column 6 has a base post 6A that protrudes toward the inner side of the side plate 2, and a base post 6B that is in contact with the outer side of the side plate 2. The base column 6A is located at a position GL which is symmetrical with respect to the center of the storage unit main body 1. The piston rotation preventing device 50 to be described later is disposed by the base post 6A that protrudes toward the inner side of the side plate 2.

The storage body 1 is provided with a gas inlet and outlet pipe at the lower portion 7. Gas (for example, gas) G is supplied or discharged into the gas storage device through the gas inlet and outlet pipe 7.

The gas storage device has a piston 8 inside. The piston 8 moves the inside and outside of the storage unit main body 1 and smoothly moves up and down along the inner surface of the side plate 2 in response to the outflow of the gas G from the gas inlet and outlet pipe 7, and stores or discharges the gas G. With this configuration, the gas storage device can be a variable-capacity tank that is variable in the lower space partitioned by the piston 8. As shown in Fig. 3, the piston 8 is formed in a dome shape which is convex toward the upper side, and a deck is attached to the skeleton which is combined by the beam in the circumferential direction and the radial direction.

The piston 8 has a support frame 8a fixed to the upper surface of the outer peripheral portion thereof. The support frame 8a is a side plate 2 having a position of the base post 6B shown in Fig. 2, or an upper guide roller 8b and a lower guide roller 8c which are in contact with the base post 6A. The piston 8 is restrained from being tilted by the upper guide roller 8b and the lower guide roller 8c. Further, as shown in Fig. 4, the piston 8 is provided with a deck 8d on a skeleton combined with beams in the circumferential direction and the radial direction, and a dome type is formed as shown in Fig. 3.

As shown in Fig. 4, the piston 8 has a leg ring 8e provided in the circumferential direction on the outer edge. A support frame 8a is fixed to the leg ring 8e. The leg ring 8e is for adjusting the weight of the piston 8, and is filled with the balance concrete 8f inside. The piston 8 is adjusted in weight by the balance concrete 8f and lowered by its own weight (indicated by the two-point lock line in Fig. 3), and is raised by the pressure of the gas G stored in the lower portion of the piston 8 (in Fig. 3) The solid line shows). The piston 8 is adjusted by adjusting the weight from the balance concrete 8f, etc. The body storage device can adjust the pressure of the gas G to a predetermined pressure.

As shown in FIGS. 3 and 4, the gas storage device is provided between the side plate 2 and the piston 8, and has a sealing mechanism 10 for preventing leakage of the stored gas G therein.

As shown in Fig. 4, the sealing mechanism 10 has an elastic elastic sealing member, that is, an upper sealing rubber 11 and a lower sealing rubber 12. A wooden spacer 13 is disposed between the upper seal rubber 11 and the lower seal rubber 12. The spacer 13 is integrally fixed to the holding fitting 14. The size of the upper seal rubber 11 and the lower seal rubber 12 and the spacer 13 in the vertical direction is set to, for example, 50 mm. The upper seal rubber 11 and the lower seal rubber 12 are laminated with a synthetic rubber such as Nitrile Butadiene Rubber (NBR) and a fiber layer.

The holding fitting 14 to which the spacer 13 is fixed is connected to the support frame 16 projecting outward in the radial direction from the outer peripheral portion of the leg ring 8e of the piston 8 through the hanger 15. The slings 15 are arranged in plural in the circumferential direction of the piston 8 by a predetermined gap. Further, the holding fitting 14 is coupled to the weight portion 30 disposed on the upper surface of the outer peripheral portion of the piston 8 via the link mechanism 20.

The link mechanism 20 is composed of a frame 21, a triangular frame 22, and a bracket 23. The frame 21 has one end connected to the holding fitting 14 through the support shaft 24a, and the other end of which is disposed horizontally on the triangular frame 22 at the joined side. The triangular frame 22 has a triangular shape as seen from the side surface, and has a first corner portion that faces downward, a second corner portion that faces in the opposite horizontal direction, and a third corner portion. For the first corner of the triangular frame 22, the other end of the frame 21 is connected through the support shaft 24b. And, the triangular frame 22 is A bracket 23 is connected to the second corner. The bracket 23 has one end attached to the leg ring 8e of the piston 8, and the other end is connected to the support shaft 24c of the second corner of the triangular frame 22. Further, in the triangular frame 22, the weight portion 30 is connected to the third corner portion.

The weight portion 30 is attached to the upper surface of the leg ring 8e of the piston 8 with a bracket 31 attached thereto. The arm 32 is connected to the bracket 31 so as to be swingable in the vertical direction via the support shaft 33. The tip end of the arm 32 extends toward the outer diameter of the leg ring 8e. Further, a weight 34 is attached to the rear end of the arm 32. The distance of the arm 32 from the support shaft 33 to the weight 34 is longer than the distance from the support shaft 33 to the tip end. Further, the tip end of the arm 32 of the weight portion 30 and the third corner portion of the triangular frame 22 of the link mechanism 20 are connected to each other by the wire 35.

And by the weight of the weight 34, the wire 35 is subjected to a tensile force upward. Further, the wire 35 is stretched upward, and the frame 21 is pressed by the triangular frame 22 to press the holding fitting 14 toward the side plate 2 side. The upper seal rubber 11 and the lower seal rubber 12 are pressed toward the side plate 2 by the urging force transmitted through the holding fitting 14, and the upper seal rubber 11 and the lower seal rubber 12 are brought into close contact with the side plate 2.

The weight portion 30 is disposed in plural in the circumferential direction of the piston 8 by a predetermined gap. Thereby, the pressing force uniformly pressed toward the side plates 2 can be given across the entire circumferential direction of the piston 8. As a result, the follow-up property of the deformation of the side plate 2 is also good by the pressing force generated by the weight 34, and sufficient sealing property can be maintained for the local deformation of the side panel 2 at one time.

Further, the sealing mechanism 10 extends on the outer circumferential surface of the leg ring 8e in the outer diameter direction of the leg ring 8e, and is attached with a shielding plate 41 disposed along the outer circumference of the leg ring 8e. Further, the shielding plate 41 and the holding metal fitting 14 are connected by the canvas 42, and the lower side and the lower side of the shielding plate 41 and the canvas 42 are blocked. Further, in the upper side surrounded by the side plate 2 and the leg ring 8e, the shielding plate 41, and the canvas 42, a storage groove in which the sealing oil Q of the upper sealing rubber 11 and the lower sealing rubber 12 are disposed is formed. On the other hand, a gas storage region in which the gas G is stored is formed below.

The upper seal rubber 11 and the lower seal rubber 12 are in close contact with the inner surface of the side plate 2, and slide along the movement of the piston 8 in the vertical direction, and seal the gas G stored under the piston 8. Further, a storage groove of the seal oil Q is formed above the upper seal rubber 11 and the lower seal rubber 12, and the seal oil Q is retained there, and the upper seal rubber 11 and the lower seal rubber 12 are directed toward the side plate by the static pressure of the seal oil Q. 2 push.

The seal oil Q stored in the storage ditch flows down along the inner surface of the side plate 2, and stays in the bottom oil groove 45 shown in Fig. 3, and faces the seal oil circulation device provided in the side portion of the body of the gas storage device. 46 sent out. In the seal oil circulation device 46, after the moisture mixed in the seal oil Q is moved away, the seal oil Q is pushed up through the seal oil riser 47 toward the upper preliminary oil tank 48 by a seal oil circulation pump (not shown) or the like. The seal oil Q flows through the preliminary oil sump 48 from the slit (slit) (not shown) toward the inner surface of the side plate 2, and enters the storage groove of the sealing mechanism 10 again as the seal oil Q.

[Example 1]

Fig. 5 is a perspective view showing the piston rotation preventing device of the embodiment. Fig. 6 is a side view showing the piston rotation preventing device of the embodiment. Fig. 7 is a plan view showing the piston rotation preventing device of the embodiment.

The piston rotation preventing device 50 is provided at a position GL which is symmetric with respect to the center of the gas storage device shown in Fig. 2 . As shown in FIGS. 5 to 7, the piston rotation preventing device 50 has a projection projecting from the inner surface of the storage portion main body 1, that is, the inner surface of the side plate 2 toward the inner side, in the base column 6A provided at the position GL. Article 51. The ridge 51 is provided to extend in the vertical direction of the storage unit body 1. In the ridge 51 of the present embodiment, the base plate 6A composed of H-shaped steel extending in the vertical direction is used, and the connecting plate is inserted into the notch portion 2a extending in the vertical direction of the side plate 2, and is disposed in the ribs One of the flanges on the inner side of the body 1 is stored more than the side plate 2. The ridge 51 has a rectangular cross section and has a front surface portion 51a facing the inside of the storage portion main body 1 and two side surface portions 51b.

Further, the piston rotation preventing device 50 has a fitting mechanism 52 that is fitted to the ridge 51. The fitting mechanism 52 is provided with a plate-shaped fixing portion 54 that is vertically disposed at the rear end of the plate-shaped support base 53 that is horizontally disposed. Further, the fixing portion 54 is fixed to the above-described support frame 8a on the side of the piston 8, and the tip end faces of the support base 53 are disposed on the front portion 51a of the ridge 51. This piston rotation preventing device 50 includes a claw member 55, a sliding member 56, a rotating shaft 57, an operating lever 58, and a spring 59.

The claw members 55 are provided in a pair so as to be disposed on both side portions of the ridges 51. The claw member 55 has a front surface portion 55a that faces the front surface portion 51a of the ridge 51 and a side surface portion 55b that faces one side surface portion 51b of the ridge 51, and forms a plane view L. A block of word shape. Further, each of the claw members 55 is coupled to each other by a coupling member 55c.

The sliding member 56 is provided in correspondence with each of the claw members 55. The sliding member 56 is formed in a columnar shape, and is slidably inserted into the radial direction of the storage unit main body 1 in the radial direction of the storage unit main body 1, that is, in a direction in which the slats 51 are close to or separated from each other. In the present embodiment, the sliding support portion 53a is shown as being disposed in a plurality (two) on the support base 53, but one may be used. The sliding member 56 has its tip end fixed to the claw member 55. That is, the claw member 55 is slidably supported by the sliding member 56 in a direction in which it is close to or isolated from the ridge 51.

The rotating shaft 57 is perpendicular to the moving direction of the sliding member 56, and is attached to the bracket 53b provided on the support base 53 which is the piston 8 side. In the present embodiment, the bracket 53b is formed of an L-shaped angle member, and one of the L-shaped pieces is fixed to the upper surface of the slide support portion 53a, and the other piece of the L-shape is erected on the slide support portion 53a. The top. The brackets 53b are disposed on both sides of the support base 53, and the rotary shaft 57 is supported by the brackets 53b. The bracket 53b may be fixed to the support base 53.

The operating lever 58 is provided in correspondence with each of the sliding members 56. The operating rod 58 is formed by forming a long and narrow sheet of material, the apex of which The side is rotatably supported on the rotating shaft 57. The operating lever 58 has an abutting portion 58a. The abutting portion 58a is disposed at a position closer to the rear end than the position supported by the rotating shaft 57 on the tip end side of the operating lever 58, and is provided in contact with the rear end of the sliding member 56. Further, the rear ends of the operation levers 58 are coupled to each other by a coupling member 58b.

The spring 59 is configured as a tension spring, and one end is attached to the vicinity of the rear end of the operating lever 58, and the other end is attached to the bracket 53c provided on the support base 53. This spring 59 abuts the abutting portion 58a of the operating lever 58 against the rear end of the sliding member 56 by pulling the rear end side of the operating lever 58 downward, so that the claw member 55 is generated together with the sliding member 56. The pressing force that is pressed toward the front portion 51a of the ridge 51.

Further, the claw members 55 that are pressed toward the front surface portion 51a of the ridge 51 by the urging force of the spring 59 abut the front surface portion 55a with the front surface portion 51a of the ridge 51, and the side surface portion 55b and the ridge 51 are provided. The side surface portions 51b are disposed facing each other on both side portions of the ridge 51. Thereby, the fitting mechanism 52 attached to the support frame 8a of the piston 8 is allowed to move up and down in the extending direction of the ridge 51 by the claw member 55, and the movement to the side of the ridge 51 is limit. Therefore, the rotational movement around the axis around the vertical direction of the piston 8 is restricted.

As described above, in the piston rotation preventing device 50 of the gas storage device of the present embodiment, the storage portion main body 1 provided with the cylindrical shape and the inner surface of the storage portion main body 1 are sealed by the sealing mechanism 10 and will be stored. The gas storage device of the piston 8 which is disposed inside and lower of the body 1 has a product which protrudes inward from the inner surface of the storage body 1 and faces upward and downward The protruding rib 51 and the pair of claw members 55 provided on the piston 8 and disposed on both side portions of the ridge 51 restrict the axis in the up and down direction by abutting against the claw member 55 of the ridge 51 The rotational movement of the piston 8 around the heart. In addition, the piston rotation preventing device 50 includes a sliding member 56 that is slidably supported by the piston 8 in the radial direction of the storage unit main body, and is provided in each of the claw members 55, and a moving direction of the sliding member 56. a rotating shaft 57 provided vertically on the side of the piston 8 and an operating lever 58 rotatably supported to the rotating shaft 57 and having an abutting portion 58a provided on the distal end side with the sliding member 56 abutting against the ground, and an operating lever In the vicinity of the rear end of the 58, the abutting portion 58a of the operating lever 58 abuts against the sliding member 56, and a spring 59 for pressing the claw member 55 toward the ridge 51 side is generated.

According to the piston rotation preventing device 50 of the gas storage device, since the pressing force that pushes the claw member 55 toward the ridge 51 side by the spring 59 occurs at any time, even if an external force in the vertical direction and the horizontal direction is received by an earthquake or the like In the case, the pressure will not be detracted. As a result, the rotation preventing function of the piston 8 can be maintained.

Further, in the gas storage device of the present embodiment, the piston rotation preventing device 50 is provided to restrict the rotational movement of the piston 8 around the axis in the vertical direction.

According to the gas storage device, the rotation preventing function of the piston 8 can be maintained by the piston rotation preventing device 50, and even if an external force in the vertical direction and the horizontal direction is received, the stored gas G can be prevented from leaking out.

[Embodiment 2]

Fig. 8 is a plan view showing the piston rotation preventing device of the embodiment. In the same portions as those of the piston rotation preventing device 50 of the first embodiment described above, the same reference numerals are attached, and the description thereof is omitted.

The piston rotation preventing device 50 shown in Fig. 8 is a configuration in which the piston rotation preventing device 50 of the first embodiment described above removes the coupling member 55c of the claw member 55 and removes the coupling member 58b of the operating lever 58. .

That is, in the piston rotation preventing device 50 of the gas storage device of the present embodiment, each of the claw members 55 and the sliding member 56 are independently movably provided, and the operating lever 58 and the spring 59 are independent of the respective claw members 55. Ground setting.

According to the piston rotation preventing means 50 of the gas storage device, the claw members 55 are independently movably provided together with the slide member 56, and the claw members 55 are provided for the respective claw members 55 by the operation lever 58 and the spring 59 which are independent of the claw members 55. Give pressure to each other individually. Therefore, since the ridge 51 is inclined to the sliding movement direction of the sliding member 56, even if the external force is relatively applied to the ridge 51 side and the claw member 55 side, the claw members 55 can be independently directed toward the ridges. Since the 51 side is pressed, the relative movement of the side of the ridge 51 and the side of the claw member 55 can be followed, so that the state in which the claw member 55 is detached from the ridge 51 can be suppressed. As a result, the rotation preventing function of the piston 8 can be maintained.

Further, in the gas storage device of the present embodiment, the rotation of the piston 8 around the axis around the vertical direction is restricted. The piston rotation preventing device 50 is described.

According to the gas storage device, the rotation preventing function of the piston 8 can be maintained by the piston rotation preventing device 50, and even if an external force in the vertical direction and the horizontal direction is received, the stored gas G can be prevented from leaking out.

[Example 3]

9 to 11 are plan views showing the piston rotation preventing device of the present embodiment. In the same portions as those of the piston rotation preventing device 50 of the first embodiment described above, the same reference numerals are attached, and the description thereof is omitted.

The piston rotation preventing device 50 shown in FIG. 9 is provided with a fitting means for fitting the ridge 51 and the claw member 55 to the piston rotation preventing device 50 of the above-described first embodiment. In the fitting means, each side surface portion 51b of the ridge 51 is formed to be enlarged toward the inside of the storage portion main body 1. In addition, the fitting means is formed such that the side surface portion 55b of each of the claw members 55 faces the side surface portion 51b of the ridge 51 and is enlarged toward the inside of the storage portion main body 1.

The piston rotation preventing device 50 shown in FIG. 10 is provided with the fitting means for fitting the ridge 51 and the claw member 55 to the piston rotation preventing device 50 of the first embodiment described above. The fitting means is provided on each side portion of the ridge 51, and is provided with a convex portion 51c that protrudes laterally from the inner side of the storage portion main body 1 and a concave portion 51d that is recessed laterally from the outer side of the storage portion main body 1. . Further, the fitting means is provided at a side portion of each of the claw members 55: a recess 55d into which the convex portion 51c of the ridge 51 is inserted, and an insertion protrusion The convex portion 55e of the concave portion 51d of 51.

By having such a fitting means, the vertical movement of the claw member 55 in the extending direction of the ridge 51 is allowed, and the movement of the claw member 55 in the radial direction of the storage portion main body 1 is restricted without impeding the lifting and lowering of the piston 8. Therefore, the rotational movement of the piston 8 about the axis in the up and down direction can be restricted.

In other words, the piston rotation preventing device 50 of the gas storage device of the present embodiment includes the claw member 55 that allows the vertical movement of the claw member 55 in the extending direction of the ridge 51 and restricts the radial direction of the storage portion main body 1. The manner of movement is a fitting means for fitting the ridge 51 and the claw member 55.

According to the piston rotation preventing device 50 of the gas storage device, by restricting the movement of the claw member 55 in the radial direction of the storage portion main body 1 by the fitting means, the situation in which the claw member 55 is detached from the ridge 51 can be further suppressed. . As a result, the rotation preventing function of the piston can be maintained.

Further, the piston rotation preventing device 50 shown in Fig. 11 is provided with the fitting means for the piston rotation preventing device 50 of the above-described second embodiment. In the eleventh figure, the example in which the fitting means shown in Fig. 9 is provided is shown, but the fitting means shown in Fig. 10 may be used.

According to the piston rotation preventing device 50 shown in Fig. 11, the claw members 55 are independently movably provided together with the slide member 56, and the claws 55 and the springs 59, which are independent of the claw members 55, are used for the respective claws. The members 55 individually impart a pressing force. Therefore, the ridge 51 is inclined to the sliding movement direction of the sliding member 56, and even if the external force is relatively applied to the ridge 51 side and the claw member 55 side, Since the claw members 55 can be independently pressed toward the ridges 51, the relative movement of the claws 51 and the claw members 55 can be followed, so that the claw members 55 can be prevented from falling off the ridges 51. Further, by restricting the movement of the claw member 55 in the radial direction of the storage unit main body 1 by the fitting means, it is possible to further suppress the situation in which the claw member 55 is detached from the ridge 51. As a result, the rotation preventing function of the piston can be maintained.

Further, in the gas storage device of the present embodiment, the piston rotation preventing device 50 is provided to restrict the rotational movement of the piston 8 around the axis in the vertical direction.

According to the gas storage device, the rotation preventing function of the piston 8 can be maintained by the piston rotation preventing device 50, and even if an external force in the vertical direction and the horizontal direction is received, the stored gas G can be prevented from leaking out.

[Example 4]

Fig. 12 is a perspective view showing the piston rotation preventing device of the embodiment. Fig. 13 is a plan view showing the piston rotation preventing device of the fourth embodiment. In the same portions as those of the piston rotation preventing device 50 of the first embodiment described above, the same reference numerals are attached, and the description thereof is omitted.

The piston rotation preventing device 50 shown in Fig. 12 removes the spring 59, and instead, a weight 60 is provided at the rear end portion of the operating lever 58. The weight 60 of the present embodiment is provided to be inserted into the joint member 58b.

This counterweight 60 is the rear end of the operating lever 58 by its load. The side is pulled downward, and the abutting portion 58a of the operating lever 58 abuts against the rear end of the sliding member 56, and a pressing force that pushes the claw member 55 toward the front portion 51a of the ridge 51 together with the sliding member 56 occurs.

Further, each of the claw members 55 pressed against the front portion 51a of the ridge 51 by the pressing force of the weight 60 abuts the front portion 55a and the front portion 51a of the ridge 51, and the side portion 55b and the ridge The side surface portions 51b of 51 are disposed facing each other on both side portions of the ridges 51. Thereby, the fitting mechanism 52 attached to the support frame 8a of the piston 8 is allowed to move up and down in the extending direction of the ridge 51 by the claw member 55, and the movement to the side of the ridge 51 is limit. Therefore, the rotational movement around the axis around the vertical direction of the piston 8 is restricted.

Moreover, the connecting member 58b is provided in the insertion hole 58c which is formed in plural from the rear end side of the operation lever 58 toward the front end side so that the position can be selectively changed. Thereby, the pressing force generated by the weight 60 can be adjusted.

Further, as shown in Fig. 13, the piston rotation preventing device 50 of the present embodiment is the fitting means having the above-described third embodiment. In Fig. 13, although the example in which the fitting means shown in Fig. 9 is provided is shown, the fitting means shown in Fig. 10 may be used.

In other words, in the piston rotation preventing device 50 of the gas storage device of the present embodiment, the storage portion main body 1 provided with a cylindrical shape and the inner surface of the storage portion main body 1 are sealed by the sealing mechanism 10 and will be stored. The gas storage device of the piston 8 which is provided in the inside of the main body 1 so as to be movable up and down, has a protrusion 51 which protrudes inward from the inner surface of the storage unit main body and extends in the vertical direction, and is disposed on the piston 8 and is disposed in the protrusion 8 Both sides of strip 51 The pair of claw members 55 restrict the rotational movement of the piston 8 around the axial center in the vertical direction by the abutment of the claw members 55 of the ridges 51. In addition, the piston rotation preventing device 50 includes a sliding member 56 that is slidably supported by the piston 8 in the radial direction of the storage unit main body, and is provided in each of the claw members 55, and a moving direction of the sliding member 56. a rotating shaft 57 provided vertically on the side of the piston 8 and an operating lever 58 rotatably supported to the rotating shaft 57 and having an abutting portion 58a provided on the distal end side with the sliding member 56 abutting against the ground, and an operating lever In the vicinity of the rear end of the 58, the abutting portion 58a of the operating lever 58 abuts against the sliding member 56, and the weight of the claw member 55 is applied to the ridge 51 side, and the claw 60 is allowed to extend in the extending direction of the ridge 51. The fitting means for fitting the ridge 51 and the claw member 55 so as to restrict the movement of the claw member 55 in the radial direction of the storage portion main body 1 up and down.

According to the piston rotation preventing device 50 of the gas storage device, by restricting the movement of the claw member 55 in the radial direction of the storage portion main body 1 by the fitting means, the situation in which the claw member 55 is detached from the ridge 51 can be further suppressed. . As a result, the rotation preventing function of the piston 8 can be maintained.

Further, in the gas storage device of the present embodiment, the piston rotation preventing device 50 is provided to restrict the rotational movement of the piston 8 around the axis in the vertical direction.

According to the gas storage device, the rotation preventing function of the piston 8 can be maintained by the piston rotation preventing device 50, and even if an external force in the vertical direction and the horizontal direction is received, the stored gas G can be prevented from leaking out.

[Examples]

Fig. 14 is a view showing an analysis result of a piston rotation preventing device of a conventional example. Fig. 15 is a view showing an analysis result of the piston rotation preventing device of the embodiment.

In the present embodiment, the piston rotation preventing device of the conventional example and the piston rotation preventing device of the embodiment were simulated. In the fifteenth diagram, the piston rotation preventing device 15 shown in Figs. 5 to 8 is used as an example, and the front portion 51a of the ridge 51 is calculated for the passage of time [sec] when a certain seismic wave is given. And the displacement [mm] away from the front portion 55a of the claw member 55. Further, in Fig. 14, a conventional example is provided in which the weights 60 shown in Fig. 12 and Fig. 13 are provided instead of the springs 59 of the piston rotation preventing device 15 shown in Figs. 5 to 8 . In the embodiment, the displacement [mm] of the front portion 51a of the ridge 51 and the front portion 55a of the claw member 55 is calculated for the passage of time [sec] in the case where the same seismic wave is given. Further, as shown in Figs. 14 and 15, it can be seen that, in comparison with the conventional example, the displacement is 1/10, and by replacing the weight with a spring, the vertical direction can be further improved. The ability of external forces in the horizontal direction.

2‧‧‧ side panels

2a‧‧‧cutting section

50‧‧‧Piston rotation prevention device

51‧‧‧

51a‧‧‧Front

51b‧‧‧ Side section

52‧‧‧Chimeric institutions

53‧‧‧Support table

53a‧‧‧Sliding support

53b‧‧‧ bracket

54‧‧‧Fixed Department

55‧‧‧ claw members

56‧‧‧Sliding members

57‧‧‧Rotary axis

58‧‧‧Operator

58a‧‧‧Apartment

58b‧‧‧Connected components

59‧‧‧ Spring

Claims (6)

A piston rotation preventing device for a gas storage device is provided with a cylindrical storage portion main body and a piston that is sealed to an inner surface of the storage portion main body by a sealing mechanism and that is vertically movable inside the storage portion main body The gas storage device includes: a protrusion protruding inward from the inner surface of the storage unit body and extending in the vertical direction; and a pair of claw members provided on the piston and disposed on both side portions of the protrusion, The rotation of the piston around the axial center in the vertical direction is restricted by the abutment of the claw member of the protrusion, and is characterized in that it is supported by the slidably movable in the radial direction of the storage unit body. a sliding member provided on each of the claw members on the piston side, and a rotating shaft provided on the piston side perpendicular to a moving direction of the sliding member, and rotatably supported on the rotating shaft and having the sliding on the tip end side An operating lever that can abut against the abutting portion provided in the ground, and an abutting portion of the operating rod that is adjacent to the rear end of the operating lever and the sliding member The pawl members occurs so that the urging force of the spring toward the side of the ridge pushed. A piston rotation preventing device for a gas storage device according to claim 1, wherein each of the claw members is independently movably provided together with the sliding member, and the operation lever and the spring correspond to the respective claw members. Set independently. For example, the gas storage equipment of patent scope 1 or 2 is live. The plug rotation preventing device includes a fitting means for allowing the claw member to move up and down in the extending direction of the ridge, and restricting the movement of the claw member in the radial direction of the storage portion main body The strip and the aforementioned claw member are fitted. A gas storage device is provided with a cylindrical storage unit body and a piston that is sealed by a sealing mechanism on an inner surface of the storage unit body and that is vertically movable inside the storage unit body, and is characterized in that: The piston rotation preventing device according to the first aspect of the patent application is provided to restrict the rotational movement of the piston around the axis in the vertical direction. A piston rotation preventing device for a gas storage device is provided with a cylindrical storage portion main body and a piston that is sealed to an inner surface of the storage portion main body by a sealing mechanism and that is vertically movable inside the storage portion main body The gas storage device includes: a protrusion protruding inward from the inner surface of the storage unit body and extending in the vertical direction; and a pair of claw members provided on the piston and disposed on both side portions of the protrusion, The rotation of the piston around the axial center in the vertical direction is restricted by the abutment of the claw member of the protrusion, and is characterized in that it is supported by the slidably movable in the radial direction of the storage unit body. a sliding member provided on each of the claw members on the piston side, and a rotating shaft provided on the piston side perpendicular to a moving direction of the sliding member, and rotatably supported on the rotating shaft and having the sliding on the tip end side The lever of the abutment portion of the component can be grounded, and Provided in the vicinity of the rear end of the operation lever, the abutting portion of the operation lever abuts against the sliding member, and the weight of the load for pressing the claw member toward the protrusion side and the extension of the protrusion are allowed. A fitting means for fitting the ridge and the claw member so as to restrict the movement of the claw member in the radial direction of the storage portion main body in the vertical direction of the claw member. A gas storage device is provided with a cylindrical storage unit body and a piston that is sealed by a sealing mechanism on an inner surface of the storage unit body and that is vertically movable inside the storage unit body, and is characterized in that: The piston rotation preventing device according to the fifth aspect of the patent application is provided to restrict the rotational movement of the piston around the axis in the vertical direction.