Floating roof structure of oil storage tank

Abstract

The utility model discloses a floating roof structure of an oil storage tank, and relates to the technical field of oil storage tanks, in particular to the floating roof structure of the oil storage tank, which is arranged on the liquid level in the oil storage tank in a floating mode and comprises a floating disc, a second air bag, a first air bag and an air supply component. The first air bag is arranged on the side wall of the circumferential edge of the floating disc in a sleeving mode, and the first air bag and the floating disc are fixedly installed. The second air bag is arranged below the floating disc, and the second air bag and the lower surface of the floating disc are fixedly installed. Through cooperative arrangement of the air supply part, the first air bag and the floating disc, the floating roof structure of the oil storage tank has the effect of enhancing the sealing performance between the floating disc and the inner wall of the oil storage tank, air is conveyed into the first air bag through the air conveying part in time, and the first air bag is fuller after being filled with the air; and the first air bag is more tightly attached to the inner wall of the oil storage tank, the sealing effect is better, and the defects in the prior art can be effectively overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of oil storage tanks, in particular to a floating roof structure of an oil storage tank. Background Art

[0002] Internal floating roof tanks are common oil storage equipment. In the actual process of oil transportation, the negative pressure of oil output will increase due to factors such as environment and temperature conditions, causing tank pumping accidents. Therefore, relevant petrochemical companies should increase their attention to operating failures of internal floating roof tanks, formulate comprehensive maintenance plans, arrange special personnel to carry out regular maintenance, eliminate hidden dangers of failures as soon as possible, provide good conditions for oil transportation, and ensure the safety of oil transportation. Internal floating roof tanks can store Class A and Class B materials, including methanol, aromatics, solvent oil, etc., and the above materials have certain volatility.

[0003] The floating plate is an environmental protection device that covers the liquid surface and rises and falls with the rise and fall of the liquid level in the storage tank by buoyancy. The setting of the floating plate can reduce the volatilization of oil and gas in the storage tank; however, the rubber sleeve around the existing floating plate is easy to deflate after long-term use, which leads to a decrease in sealing performance. For example, in a published Chinese patent application, the publication number is: CN220885510U, the patent name is: a welded double-disc inner floating plate, the prior art includes a floating plate body, the side surface of the floating plate body is fixedly connected to a sealing gasket, the sealing gasket completely covers the side surface of the floating plate body, the lower surface of the floating plate body is fixedly connected to a plurality of buoyancy rods, the upper surface of the floating plate body is fixedly connected to a sealing cover, the side surface of the sealing cover is fixedly connected to a flexible rubber sleeve, and the ball is located inside the flexible rubber sleeve.

[0004] The prior art uses a rubber sleeve to seal the periphery of the floating plate. The rubber sleeve becomes deflated and insufficiently full after long-term use, resulting in an ineffective sealing effect. In view of the limitations of the prior art, this case is proposed to solve the problem. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a floating roof structure for an oil storage tank, which solves the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a floating roof structure of an oil storage tank, which is floated on the liquid surface inside the oil storage tank, including a floating plate, a second airbag, a first airbag and an air supply component, the first airbag is annular as a whole, the first airbag is sleeved on the side wall along the circumference of the floating plate, and the first airbag is fixedly installed on the floating plate; the second airbag is arranged below the floating plate, and the second airbag is fixedly installed on the lower surface of the floating plate; the air supply component includes a gas delivery component, the gas delivery component is fixedly installed on the upper surface of the floating plate, and the gas outflow end of the gas delivery component is respectively connected to the first airbag and the second airbag.

[0009] Optionally, the gas supply component also includes a first conduit and a second conduit, one end of the first conduit is fixedly installed on the gas outflow end of the gas delivery component and the two are connected, and the other end of the first conduit is fixedly installed on the first airbag and the two are connected; one end of the second conduit is fixedly installed on the gas outflow end of the gas delivery component and the two are connected, and the other end of the second conduit is fixedly installed on the second airbag and the two are connected.

[0010] Optionally, a first valve is provided on the first conduit, and a second valve is provided on the second conduit.

[0011] Optionally, the gas delivery member is an air pump.

[0012] Optionally, a rubber ring is sleeved on the side wall along the circumference of the floating plate, and the rubber ring is fixedly installed on the floating plate, and the rubber ring is located below the first airbag.

[0013] Optionally, a bracket is fixedly connected to the lower surface of the floating plate, a placement position is formed between the bracket and the floating plate, the second airbag is arranged on the bracket and located at the placement position, and the second airbag is fixedly mounted to the bracket.

[0014] Optionally, the bracket is composed of a support ring, a plurality of support rods, and at least two connecting rods, at least two of the connecting rods are arranged in a circular array on the outer wall of the support ring, and the lower end of the connecting rod is fixedly connected to the support ring, and the upper end of the connecting rod is fixedly connected to the lower surface of the floating plate; each of the support rods is arranged in a circular array on the inner wall of the support ring, and each of the support rods is fixedly connected to the support ring.

[0015] Optionally, at least one guide bar is fixedly installed on the upper surface of the floating plate, the guide bar is perpendicular to the floating plate, and a central guide column in a vertical state is fixedly installed inside the oil storage tank, and at least one guide groove is opened on the side wall of the central guide column, and the guide bar is slidably connected to the central guide column through the guide groove.

[0016] Optionally, the floating plate is made of one of aluminum, aluminum alloy, magnesium alloy, and stainless steel; the first airbag and the second airbag are both made of one of rubber material, polyurethane, PET polyester, and polyamide 66.

[0017] (III) Beneficial effects

[0018] The utility model provides a floating roof structure for an oil storage tank, which has the following beneficial effects:

[0019] 1. The floating roof structure of the oil storage tank has the effect of strengthening the sealing between the floating plate and the inner wall of the oil storage tank through the coordinated arrangement of the air supply component, the first air bag and the floating plate. The gas is timely delivered to the first air bag through the gas delivery component, so that the first air bag is fuller after being filled with gas, and the first air bag and the inner wall of the oil storage tank are more closely attached, and the sealing effect is better, which can effectively make up for the deficiencies in the prior art.

[0020] 2. The floating roof structure of the oil storage tank is arranged by the coordination of the air supply component, the second air bag and the floating plate, wherein the gas is delivered to the second air bag through the air delivery component, so that the second air bag is fuller after being filled with gas, and the buoyancy of the second air bag is enhanced, thereby providing sufficient buoyancy for the floating roof structure of the oil storage tank, and making the floating plate lighter when floating inside the oil storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 This is a three-dimensional (top view) structural schematic diagram of a first embodiment of a floating roof structure of an oil storage tank of the utility model;

[0023] Figure 2 This is a three-dimensional (looking from above) structural diagram of Embodiment 1 of a floating roof structure of an oil storage tank of the utility model;

[0024] Figure 3 It is a three-dimensional structural schematic diagram of a second embodiment of a floating roof structure of an oil storage tank of the utility model;

[0025] Figure 4 for Figure 3 Enlarged structural diagram at A in the middle.

[0026] In the figure: 1, floating plate; 2, rubber ring; 3, first air bag; 4, first conduit; 5, air delivery member; 6, first valve; 7, second conduit; 8, second valve; 9, second air bag; 10, bracket; 101, support ring; 102, support rod; 103, connecting rod; 11, guide strip; 12, center guide column; 121, guide groove. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indications or implications.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0029] For example, see Figure 1 to Figure 2 The utility model provides a technical solution: a floating roof structure of an oil storage tank, which is floated on the liquid surface inside the oil storage tank, and includes a floating plate 1, a second airbag 9, a first airbag 3 and an air supply component. The first airbag 3 is annular as a whole, and the first airbag 3 is mounted on the side wall along the circumference of the floating plate 1, and the first airbag 3 is fixedly installed with the floating plate 1. The second airbag 9 is arranged below the floating plate 1, and the second airbag 9 is fixedly installed with the lower surface of the floating plate 1. The air supply component includes a gas delivery component 5, which is fixedly installed on the upper surface of the floating plate 1, and the gas outflow end of the gas delivery component 5 is connected with the first airbag 3 and the second airbag 9 respectively.

[0030] Among them, the first airbag 3 is used to seal the gap between the circumferential edge of the floating plate 1 and the inner wall of the oil storage tank. The second airbag 9 is used to provide buoyancy for the entire floating roof structure of the oil storage tank or to strengthen the buoyancy of the entire floating roof structure of the oil storage tank. The air supply component is used to transport gas to the first airbag 3 and the second airbag 9, so that the gas inside the first airbag 3 and the second airbag 9 is appropriate, so as to avoid the first airbag 3 and the second airbag 9 from deflation due to insufficient internal gas. The gas delivery component 5 is used to deliver gas to the first airbag 3 and the second airbag 9. The gas delivery component 5 can be an air pump, but is not limited to an air pump, and other gas delivery equipment can also be used.

[0031] A rubber ring 2 is sleeved on the side wall of the circumference of the floating plate 1 , and the rubber ring 2 is fixedly installed on the floating plate 1 . The rubber ring 2 is located below the first airbag 3 .

[0032] The rubber ring 2 is used to buffer the circumferential edge of the floating plate 1 to prevent the floating plate 1 from expanding the inner wall of the oil storage tank when floating, and also to prevent the floating plate 1 from squeezing the first airbag 3 when floating.

[0033] The floating plate 1 is made of one of aluminum, aluminum alloy, magnesium alloy and stainless steel, and the materials of the floating plate 1 include but are not limited to the materials shown above. In the specific implementation process, the floating plate 1 can also be made of other metals (including alloy materials) or non-metallic environmentally friendly materials.

[0034] The first airbag 3 and the second airbag 9 are both made of one of rubber materials, polyurethane, PET polyester, and polyamide 66 materials. The materials for making the first airbag 3 and the second airbag 9 include but are not limited to the materials shown above, and other materials may also be used during the specific implementation process.

[0035] The floating roof structure of an oil storage tank shown in the utility model also includes a control board. The control board adopts one of a single-chip microcomputer and an editable logic controller. The control board is electrically connected to the gas transmission component 5 through a wire. The control board is equipped with a logic control program and a timing control program. The control board controls the start and stop of the gas transmission component 5 in a timely manner to meet the gas transmission needs of the gas transmission component 5 for automatically transmitting gas to the first airbag 3 or the second airbag 9.

[0036] For example 2, please refer to Figure 1 to Figure 2 The difference between this embodiment and the first embodiment is that the gas supply component further includes a first conduit 4 and a second conduit 7. One end of the first conduit 4 is fixedly installed with the gas outflow end of the gas delivery member 5 and the two are connected. The other end of the first conduit 4 is fixedly installed with the first air bag 3 and the two are connected. One end of the second conduit 7 is fixedly installed with the gas outflow end of the gas delivery member 5 and the two are connected. The middle part of the second conduit 7 passes through the floating plate 1. The other end of the second conduit 7 is fixedly installed with the second air bag 9 and the two are connected.

[0037] The gas outflow end of the gas delivery member 5 is fixedly mounted with a three-way joint, and the gas outflow end of the gas delivery member 5 is connected to the first conduit 4 and the second conduit 7 through the three-way joint. The gas produced by the gas delivery member 5 is transported to the first airbag 3 through the first conduit 4, and the gas produced by the gas delivery member 5 is transported to the second airbag 9 through the second conduit 7.

[0038] Specifically, a first valve 6 is provided on the first conduit 4 , and a second valve 8 is provided on the second conduit 7 .

[0039] The first valve 6 is used to control the on-off of the first conduit 4, and the second valve 8 is used to control the on-off of the second conduit 7. Both the first valve 6 and the second valve 8 can be electromagnetic valves, and both the first valve 6 and the second valve 8 are electrically connected to the control board through wires. The control board controls the opening or closing of the first valve 6 in a timely manner. The control board controls the opening or closing of the second valve 8 in a timely manner.

[0040] Specifically, the gas delivery component 5 adopts an air pump, but is not limited to an air pump, and other gas delivery equipment may also be adopted.

[0041] Specifically, a bracket 10 is fixedly connected to the lower surface of the floating plate 1, a placement position is formed between the bracket 10 and the floating plate 1, the second airbag 9 is arranged on the bracket 10 and located at the placement position, and the second airbag 9 is fixedly installed with the bracket 10. The bracket 10 is composed of a support ring 101, a plurality of support rods 102, and at least two connecting rods 103. At least two connecting rods 103 are arranged in an annular array on the outer side wall of the support ring 101, and the lower end of the connecting rod 103 is fixedly connected to the support ring 101, and the upper end of the connecting rod 103 is fixedly connected to the lower surface of the floating plate 1. Each support rod 102 is arranged in an annular array on the inner side wall of the support ring 101, and each support rod 102 is fixedly connected to the support ring 101.

[0042] The bracket 10 is used to support and fix the second airbag 9 so that the second airbag 9 is located at the center below the floating plate 1 to prevent the second airbag 9 from shifting. The support ring 101 and the support rods 102 are used to support and fix the second airbag 9 below. The connecting rods 103 are used to limit and fix the second airbag 9 on the side to prevent the second airbag 9 from shifting.

[0043] For example 3, please refer to Figure 3 to Figure 4 The main difference between this embodiment and the first embodiment is that at least one guide bar 11 is fixedly installed on the upper surface of the floating plate 1, and the guide bar 11 is perpendicular to the floating plate 1. A central guide column 12 in a vertical state is fixedly installed inside the oil storage tank, and at least one guide groove 121 is opened on the side wall of the central guide column 12. The guide bar 11 is slidably connected to the central guide column 12 through the guide groove 121.

[0044] Among them, the guide bar 11 and the central guide column 12 are used to guide the floating plate 1, so that the floating plate 1 as a whole moves up and down along the axial direction, that is, it floats and rises and falls with the rise and fall of the liquid level of the fluid medium in the oil storage tank. When the floating plate 1 rises and falls, it pushes the guide bar 11 to rise and fall, and the guide bar 11 rises and slides on the central guide column 12. During the lifting and moving process, the floating plate 1 is restricted by the guide bar 11 and the central guide column 12 and cannot be laterally offset, that is, the floating plate 1 cannot move laterally, which prevents the floating plate 1 from squeezing the first airbag 3 due to lateral movement and prevents the floating plate 1 from colliding with the inner wall of the oil storage tank due to lateral movement, thereby reducing safety hazards.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A floating roof structure for an oil storage tank, which is floated on the liquid surface inside the oil storage tank, and is characterized by: The invention comprises a floating plate (1), a second airbag (9), a first airbag (3) and an air supply component, wherein the first airbag (3) is annular in shape as a whole, is sleeved on the side wall along the circumference of the floating plate (1), and the first airbag (3) is fixedly mounted on the floating plate (1); The second airbag (9) is arranged below the floating plate (1), and the second airbag (9) is fixedly mounted on the lower surface of the floating plate (1); The gas supply component comprises a gas delivery component (5), the gas delivery component (5) is fixedly mounted on the upper surface of the floating plate (1), and the gas outflow end of the gas delivery component (5) is respectively connected to the first air bag (3) and the second air bag (9).

2. The floating roof structure of an oil storage tank according to claim 1, characterized in that: The gas supply component further comprises a first conduit (4) and a second conduit (7); one end of the first conduit (4) is fixedly mounted on the gas outflow end of the gas delivery component (5) and the two are in communication; the other end of the first conduit (4) is fixedly mounted on the first airbag (3) and the two are in communication; one end of the second conduit (7) is fixedly mounted on the gas outflow end of the gas delivery component (5) and the two are in communication; the other end of the second conduit (7) is fixedly mounted on the second airbag (9) and the two are in communication.

3. The floating roof structure of an oil storage tank according to claim 2, characterized in that: The first conduit (4) is provided with a first valve (6), and the second conduit (7) is provided with a second valve (8).

4. The floating roof structure of an oil storage tank according to claim 3, characterized in that: The gas delivery component (5) is an air pump.

5. The floating roof structure of an oil storage tank according to claim 1, characterized in that: A rubber ring (2) is sleeved on the side wall of the circumference of the floating plate (1), and the rubber ring (2) is fixedly installed on the floating plate (1). The rubber ring (2) is located below the first airbag (3).

6. The floating roof structure of an oil storage tank according to claim 1, characterized in that: A bracket (10) is fixedly connected to the lower surface of the floating plate (1), a placement position is formed between the bracket (10) and the floating plate (1), the second airbag (9) is arranged on the bracket (10) and is located at the placement position, and the second airbag (9) is fixedly installed with the bracket (10).

7. The floating roof structure of an oil storage tank according to claim 6, characterized in that: The support (10) is composed of a support ring (101), a plurality of support rods (102), and at least two connecting rods (103); at least two connecting rods (103) are arranged in an annular array on the outer wall of the support ring (101), and the lower ends of the connecting rods (103) are fixedly connected to the support ring (101), and the upper ends of the connecting rods (103) are fixedly connected to the lower surface of the floating plate (1); each of the support rods (102) is arranged in an annular array on the inner wall of the support ring (101), and each of the support rods (102) is fixedly connected to the support ring (101).

8. The floating roof structure of an oil storage tank according to claim 1, characterized in that: At least one guide bar (11) is fixedly mounted on the upper surface of the floating plate (1), and the guide bar (11) is perpendicular to the floating plate (1). A central guide column (12) in a vertical state is fixedly mounted inside the oil storage tank, and at least one guide groove (121) is formed on the side wall of the central guide column (12), and the guide bar (11) is slidably connected to the central guide column (12) via the guide groove (121).

9. The floating roof structure of an oil storage tank according to claim 1, characterized in that: The floating plate (1) is made of one of aluminum, aluminum alloy, magnesium alloy, and stainless steel; the first airbag (3) and the second airbag (9) are both made of one of rubber, polyurethane, PET polyester, and polyamide 66.

Images