Adjustable floating disc supporting leg device of oil storage tank

Abstract

The invention discloses an adjustable floating disc supporting leg device of an oil storage tank. The adjustable floating disc supporting leg device comprises a tank body, a floating disc, a driving mechanism and a supporting leg part, the floating disc is movably arranged in the tank body, the supporting leg parts are circumferentially arranged on the bottom side of the floating disc and rotationally connected with the floating disc through rotating shafts, each supporting leg part comprises a supporting arm, a long supporting leg and a short supporting leg, the long supporting leg and the short supporting leg are perpendicularly arranged, the upper portion of each supporting arm extends into the floating disc, and the upper end of each supporting arm is connected with a torque rope penetrating through the floating disc; a wheel shaft matched with the torque rope is arranged at the position, corresponding to the torque rope, of the top of the tank body, and a driving mechanism connected with the torque rope is arranged on the tank body. The upper end of the sealing sleeve is fixedly sleeved on the support arm, and the lower end of the sealing sleeve is connected with the floating disc. The device is simple in structure and convenient to operate, traditional supporting leg adjusting steps can be effectively simplified, meanwhile, repeated injection and removal of media and entering and exiting of personnel in the tank body are avoided, the enterprise cost is reduced, and meanwhile the operation safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of oil storage tanks, in particular to an adjustable floating plate support leg device for an oil storage tank. Background Art

[0002] In existing internal floating roof oil tanks, when the floating plate falls to the bottom of the tank with the liquid level, the entire floating plate is supported by a number of legs. There are two supporting heights: one is the lowest position of the floating plate, and the other is the height of the floating plate when the oil tank or floating plate is being repaired. In order to make full use of the effective volume in the tank, the former is not greater than 0.9m, and the latter is not less than 1.8m, for easy maintenance.

[0003] The floating plate legs of the oil tank: when the floating plate of the oil tank drops with the liquid level of the medium in the tank until its legs touch the bottom plate of the tank, the legs support the entire floating plate and stop the floating plate from moving downward. The height of the floating plate at this time is also the lowest position of the floating plate in the tank.

[0004] According to the "Vertical Cylindrical Steel Welded Oil Tank Design Specifications": "The vertical distance between the bottom of the outer edge of the inner floating plate and the top of the tank bottom should not be less than 1.8m"; at the same time, Article 6 of the "Ten Regulations on Fire Prevention and Explosion Prevention in Oil and Gas Tank Areas": "It is strictly forbidden for the floating plate to fall to the bottom during the operation of the internal floating roof storage tank"; plus the operating procedures The control height is generally 0.2m, this results in an invalid height of 2m below the floating plate, and the minimum liquid level of the storage medium in the tank must also be controlled above 2m.

[0005] In order to maximize the effective volume of the tank, make full use of the space in the tank and convert it into economic benefits, it is the actual demand of the enterprise. At present, the existing technologies of floating plate outriggers are: one is a fixed height outrigger; the other is an adjustable outrigger, which requires professionals to enter the tank to adjust the height.

[0006] At the same time, before changing the height of the above-mentioned outriggers, water needs to be filled into the tank to lift the float plate so that the outriggers are suspended in the air. After the gas in the tank is tested and qualified, the conditions for entering the limited space are met. Then, professionals enter the tank through the manhole to make manual adjustments. After the adjustment work is completed, the water in the tank must be drained and the tank is sealed. This repeated operation of filling and draining the tank and personnel entering and exiting the oil tank not only greatly increases the cost of the enterprise, but also increases the safety risk.

[0007] Therefore, an adjustable floating plate support leg device for an oil storage tank is proposed to solve the current shortcomings. Summary of the invention

[0008] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned technology and provide an adjustable floating plate support leg device for an oil storage tank.

[0009] In order to solve the above technical problems, the technical solution provided by the present invention is an adjustable floating plate leg device for an oil storage tank, comprising a tank body, a floating plate, a driving mechanism and a leg part;

[0010] The floating plate is movably arranged in the tank body, a plurality of the leg parts are circumferentially arranged on the bottom side of the floating plate and are rotatably connected to the floating plate through a rotating shaft, the leg parts include a support arm and a long support leg and a short support leg which are vertically arranged, the upper part of the support arm extends into the floating plate, and the upper end of the support arm is connected to a torque rope passing through the floating plate;

[0011] A wheel axle matching the torque rope is provided at the top of the tank body corresponding to the torque rope, and a driving mechanism connected to the torque rope is provided on the tank body;

[0012] It also includes a sealing sleeve, the upper end of which is fixedly sleeved on the support arm and the lower end of which is connected to the floating plate.

[0013] As an improvement, the torque rope includes a sleeve and a core rope movably arranged in the sleeve, the bottom end of the sleeve extends into the floating plate and is fixedly connected to the floating plate, the tail end of the core rope extends to the outside of the sleeve and is connected to the upper end of the support arm, and the tail end of the core rope is sleeved with a spring whose two ends are respectively abutted against the sleeve and the support arm.

[0014] As an improvement, the upper end of the sleeve extends to the top of the tank body and is fixedly connected to the tank body, and the upper end of the core rope cooperates with the wheel axle and is connected to the driving mechanism.

[0015] As an improvement, in an initial state, the short legs are arranged vertically to the floating plate, and the long legs are arranged parallel to the floating plate.

[0016] As an improvement, the tail end of the long leg points to the axis of the floating plate.

[0017] As an improvement, the length of the long leg is 1.8 m, and the length of the short leg is 1.5 m.

[0018] As an improvement, the weight of the long legs is less than that of the short legs.

[0019] The advantages of the present invention compared with the prior art are:

[0020] 1. Through the cooperation of the outriggers and the torque rope, the driving mechanism pulls the core rope to realize the conversion from the short outrigger to the long outrigger, and when the driving mechanism releases the pulling force on the core rope, the long outrigger can be reset to the short outrigger;

[0021] 2. In the process of converting the short outriggers to the long outriggers, it is only necessary to inject the medium into the tank body to make the floating plate float up and then the outrigger conversion operation can be realized;

[0022] 3. The device has a simple structure and is easy to operate. It can effectively simplify the traditional leg adjustment steps, avoid repeated injection and removal of the medium, and the entry and exit of personnel in the tank, reduce enterprise costs, and improve operational safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The invention is a structural schematic diagram of an adjustable floating plate leg device for an oil storage tank.

[0024] Figure 2 This is a schematic diagram of the internal structure of an adjustable floating plate support leg device for an oil storage tank of the present invention without the lower part of the box body Figure 1 .

[0025] Figure 3 This is a schematic diagram of the internal structure of an adjustable floating plate support leg device for an oil storage tank of the present invention without the lower part of the box body Figure 2 .

[0026] Figure 4 The utility model is a cross-sectional view of the internal structure of an adjustable floating plate outrigger device for an oil storage tank of the present invention.

[0027] Figure 5 yes Figure 4 A partial enlarged view of point A in the middle.

[0028] As shown in the figure:

[0029] 1. Tank body;

[0030] 2. Floating plate;

[0031] 3. Driving mechanism;

[0032] 4. outrigger, 41. arm, 42. long outrigger, 43. short outrigger;

[0033] 5. Rotation axis;

[0034] 6. torque rope, 61. casing, 62. core rope, 63. spring;

[0035] 7. Axle;

[0036] 8. Sealing sleeve. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the invention clearer, the technical solution in the embodiments of the invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the invention. Obviously, the described embodiments are part of the embodiments of the invention, not all of the embodiments. Generally, the components of the embodiments of the invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0038] In the description of the embodiments of the invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, it is only for the convenience of describing the invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0039] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0040] In the description of the embodiments of the invention, "a plurality of" means at least two.

[0041] In the description of the embodiments of the invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0042] As shown in the accompanying drawings, an adjustable floating plate leg device for an oil storage tank includes a tank body 1, a floating plate 2, a driving mechanism 3 and a leg portion 4. In this embodiment, the tank body 1 is a hollow columnar structure, and its top is an arched structure;

[0043] The floating plate 2 is movably arranged in the tank body 1, and the floating plate 2 is adapted to the tank body 1 and can move along the axial direction of the tank body 1;

[0044] The plurality of leg portions 4 are circumferentially arranged on the bottom side of the floating plate 2 and are rotatably connected to the floating plate 2 via the rotating shaft 5. Specifically, the rotatable connection between the leg portion 4 and the floating plate 2 can realize the mutual conversion between the long leg 42 and the short leg 43 of the leg portion 4 relative to the floating plate 2, so as to meet the setting requirements of the leg portion 4 of the oil storage tank in different states.

[0045] In practice, the number of the leg portions 4 can be set according to actual conditions. In this embodiment, the number of the leg portions 4 is 6 and they are arranged at equal distances around the axis of the floating plate 2 to ensure stable support for the floating plate 2.

[0046] Specifically, the leg portion 4 includes an arm 41 and a long leg 42 and a short leg 43 that are vertically arranged. In the present embodiment, the arm 41 , the long leg 42 and the short leg 43 are all located in the same plane and are fixedly connected to the rotating shaft 5 .

[0047] In specific implementation, according to the full operation cycle of the floating plate 2 in the tank body 1, the leg portion 4 can be in two states: one is during operation (i.e., in the initial state), the floating plate 2 is required to be raised and lowered between the lowest position and the highest position in the tank body 1, and the leg portion 4 is required to be suspended in the air; the second is before the restoration and maintenance or the tank body 1 is overhauled, in order to maintain a favorable construction working environment, the floating plate 2 is required to have a certain height of clearance from the bottom of the tank body 1. At this time, the long leg 42 in the leg portion 4 is in contact with the bottom of the tank body 1 to support the floating plate 2.

[0048] That is, in the initial state, the short legs 43 are arranged perpendicular to the floating plate 2 , and at this time, the long legs 42 are arranged parallel to the floating plate 2 , and the tail ends of the long legs 42 point to the axis of the floating plate 2 .

[0049] In this embodiment, in order to ensure a favorable construction working environment during maintenance, the length of the long leg 42 is 1.8m, and the length of the short leg 43 is 0.5m. At the same time, by setting the short leg 43 to 0.5m, it can be ensured that the floating plate 2 is in a suspended state when the tank body 1 is raised or lowered.

[0050] In specific operations, by switching the long legs 42 and the short legs 43 in the leg portion 4 between different states, the available effective volume in the tank body 1 can be maximized during the operation of the floating platform 2; and when the tank body 1 or the floating platform 2 is being repaired, the construction working space in the tank body 1 can be maximized.

[0051] Furthermore, to ensure the conversion between the long leg 42 and the short leg 43 , the weight of the long leg 42 is less than the weight of the short leg 43 .

[0052] The upper part of the support arm 41 extends into the floating plate 2. In this embodiment, the support arm 41 is a V-shaped structure placed horizontally. In the initial state, the upper part of the support arm 41 is arranged in a horizontal state with the floating plate 2. During use, the support leg portion 4 can be switched between the long support leg 42 and the short support leg 43 by pulling the support arm 41.

[0053] Furthermore, a sealing sleeve 8 is included, the upper end of which is fixedly sleeved on the support arm 41 and the lower end of which is connected to the floating plate 2 to prevent oil from leaking into the floating plate 2 and ensure the buoyancy of the floating plate 2.

[0054] The upper end of the support arm 41 is connected to the torque rope 6 passing through the floating plate 2;

[0055] Specifically, the torque rope 6 includes a sleeve 61 and a core rope 62 movably disposed in the sleeve 61; in this embodiment, the sleeve 61 is made of an oil-resistant and corrosion-resistant soft plastic sleeve, and the core rope 62 is made of a steel wire. At the same time, in order to reduce the sliding resistance between the core rope 62 and the sleeve 61, soft rubber seals are provided between the two ends of the sleeve 61 and the core rope 62, and grease is filled in the sleeve 61.

[0056] During implementation, the bottom end of the sleeve 61 extends into the floating plate 2 and is fixedly connected to the floating plate 2, and the upper end of the sleeve 61 extends to the top of the tank body 1 and is fixedly connected to the tank body 1. To ensure that the torque rope 6 can move relatively naturally with the movement of the floating plate 2, the sleeve 61 is in a micro-spiral state between the floating plate 2 and the top of the tank body 1.

[0057] The tail end of the core rope 62 extends to the outside of the sleeve 61 and is connected to the upper end of the support arm 41. The tail end of the core rope 62 is sleeved with a spring 63 whose two ends are respectively abutted against the sleeve 61 and the support arm 41. In the initial state, the tail end of the core rope 62 is arranged in a horizontal state and is connected to the support arm 41.

[0058] During implementation, in the initial state, the tail end of the core rope 62 pushes the support arm 41 under the action of the spring 63, so that the support arm 41 is in a horizontal state away from the sleeve 61. At the same time, since the weight of the long support leg 42 is less than the weight of the short support leg 43, it can be ensured that the short support leg 43 and the floating plate 2 are set in a vertical state.

[0059] When the short leg 43 is converted to the long leg 42, the tail end of the core rope 62 is moved into the sleeve 61 by pulling the upper end of the core rope 62, thereby driving the movement of the arm 41, thereby realizing the conversion between the legs, so as to facilitate maintenance personnel to enter the tank body 1 for maintenance operations. In order to ensure the safety during maintenance operations, a limit bolt that cooperates with the bottom of the floating plate 2 can be set on the long leg 42, and the maintenance personnel who enter the tank body 1 can perform installation and disassembly operations.

[0060] After the inspection is completed, by releasing the tension on the upper end of the core rope 62, the tail end of the core rope 62 is restored to its original state under the action of the spring 63. At this time, the conversion from the long leg 42 to the short leg 43 is completed.

[0061] The upper end of the core rope 62 cooperates with the axle 7 and is connected to the driving mechanism 3. In specific implementation, the driving mechanism 3 can be manual, and similarly, the driving mechanism 3 can also be electric. In this embodiment, the driving mechanism 3 is electric, including but not limited to a winch, an electric hoist, etc. The core rope 62 is pulled by the driving mechanism 3 to achieve the conversion between the legs.

[0062] Likewise, the driving mechanism 3 may be configured accordingly according to the number of torque ropes 6 to achieve independent conversion operations on individual leg portions 4 .

[0063] A wheel axle 7 cooperating with the torque rope 6 is provided at the top of the tank body 1 corresponding to the torque rope 6, and a driving mechanism 3 connected with the torque rope 6 is provided on the tank body 1; when in use, the pulling operation of the core rope 62 can be guaranteed, and the smooth conversion of the leg part 4 can be guaranteed.

[0064] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. An adjustable floating plate leg device for an oil storage tank, characterized in that: It comprises a tank body (1), a floating plate (2), a driving mechanism (3) and a supporting leg portion (4); The floating plate (2) is movably arranged in the tank body (1); a plurality of leg portions (4) are circumferentially arranged on the bottom side of the floating plate (2) and are rotatably connected to the floating plate (2) via a rotating shaft (5); the leg portion (4) comprises a support arm (41) and a long support leg (42) and a short support leg (43) which are vertically arranged; the upper portion of the support arm (41) extends into the floating plate (2); the upper end of the support arm (41) is connected to a torque rope (6) passing through the floating plate (2); A wheel shaft (7) matched with the torque rope (6) is provided at the top of the tank body (1) corresponding to the torque rope (6), and a driving mechanism (3) connected with the torque rope (6) is provided on the tank body (1); It also comprises a sealing sleeve (8), the upper end of which is fixedly sleeved on the support arm (41) and the lower end of which is connected to the floating plate (2).

2. The adjustable floating plate support leg device for an oil storage tank according to claim 1, characterized in that: The torque rope (6) comprises a sleeve (61) and a core rope (62) movably arranged in the sleeve (61); the bottom end of the sleeve (61) extends into the floating plate (2) and is fixedly connected to the floating plate (2); the tail end of the core rope (62) extends to the outside of the sleeve (61) and is connected to the upper end of the support arm (41); the tail end of the core rope (62) is sleeved with a spring (63) whose two ends are respectively in contact with the sleeve (61) and the support arm (41).

3. The adjustable floating plate support leg device for an oil storage tank according to claim 2, characterized in that: The upper end of the sleeve (61) extends to the top of the tank body (1) and is fixedly connected to the tank body (1); the upper end of the core rope (62) cooperates with the wheel axle (7) and is connected to the driving mechanism (3).

4. The adjustable floating plate support leg device for an oil storage tank according to claim 1, characterized in that: In the initial state, the short supporting legs (43) are arranged vertically to the floating plate (2), and the long supporting legs (42) are arranged parallel to the floating plate (2).

5. The adjustable floating plate support leg device for an oil storage tank according to claim 4, characterized in that: The tail end of the long leg (42) points to the axis of the floating plate (2).

6. The adjustable floating plate support leg device for an oil storage tank according to claim 1, characterized in that: The length of the long leg (42) is 1.8 m, and the length of the short leg (43) is 0.5 m.

7. The adjustable floating plate support leg device for an oil storage tank according to claim 1, characterized in that: The weight of the long supporting leg (42) is less than the weight of the short supporting leg (43).

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