Floating pan and tank

Abstract

The present application relates to the technical field of storage tanks, and discloses a floating disc and a storage tank, wherein the floating disc comprises a cover body and a fixed ring plate (4) mounted on the outer side of the cover body; the cover body is formed by mutually splicing a plurality of unit blocks (1) through connecting pieces (2); the unit blocks (1) are integrally formed porous foamed metal materials; the surfaces of the unit blocks (1) are coated with resin; and the gaps between adjacent unit blocks (1) and between the unit blocks (1) and the fixed ring plate (4) are sealed by filling resin. The floating disc of the present application can effectively prevent the medium in the tank body from entering the unit blocks or leaking out through the gaps between the unit blocks and between the unit blocks and the fixed ring plate by coating the surfaces of the integrally formed porous foamed metal materials with resin and sealing the gaps between adjacent unit blocks and between the unit blocks and the fixed ring plate by filling resin, thereby achieving effective sealing of the tank body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of storage tanks, in particular to a floating plate and a storage tank. BACKGROUND

[0002] At present, a floating plate is arranged in a container for storing volatile liquid, such as an internal floating roof storage tank and a slop oil tank, to inhibit liquid volatilization and reduce pollution to the outside. The floating plate mainly includes a box type floating plate or a floating plate formed by freely combining a plurality of floating covers.

[0003] For the box type floating plate, the box body is welded, and the box body is filled with aluminum honeycomb or provided with a metal partition plate to increase the strength of the floating plate. When the floating box is torn or corroded due to a welding seam, the floating box will be filled with oil gas, and a flash explosion accident will occur when the floating box is disassembled and repaired, which will cause the storage tank to explode and the operation risk to be very high. For example, an oil and gas explosion occurred due to the leakage of a floating box when a box type floating plate was disassembled in a certain petrochemical enterprise in Shanghai, which caused the storage tank to collapse and caused casualties due to the explosion. The leakage of such a floating box is a common problem, and the leakage of the floating box during operation will cause the floating plate to lose stability, cause the floating plate to be clamped, cause the liquid level to rise to the upper part of the floating plate, and cause the oil and gas in the tank to increase dramatically, which has a great risk of explosion. The common forms of the floating box are an aluminum floating box and a stainless steel floating box. These floating boxes are cuboids, have at least 8 welding seams, and have a thin wall, generally 1.2-1.6 mm, which has a large welding difficulty. The floating box site is usually more than 2 m, the stress deformation is obvious, and the sealing quality of the floating box is difficult to guarantee, which is the main reason for the leakage of the floating box. It should be noted that after the above-mentioned floating plate leaks, oil and gas will accumulate in the floating unit, and after an explosion and fire accident occurs, multiple floating units will sink, causing the entire floating plate to sink or tilt, causing the liquid level in the tank to be exposed, and forming a full-area fire. In summary, the leakage problem of the above-mentioned floating plate and the sinking problem caused by the leakage of the floating plate are the biggest hidden dangers of the current floating plate.

[0004] For the floating plate formed by freely combining floating covers, the floating cover is a hollow structure with a thick wall, and the possibility of damage and leakage is small, but the floating covers are not sealed and are only attached to each other. When the liquid level fluctuates, gaps will dynamically appear between the floating covers, causing the liquid volatilization to intensify.

[0005] In summary, the leakage problem existing in the prior art is mainly caused by the sealing problem of the floating plate. SUMMARY

[0006] The purpose of the present application is to overcome the problem of leakage of the medium in the storage tank caused by the sealing of the floating unit of the floating plate in the prior art, and to provide a floating plate which can effectively seal the tank body and prevent the leakage of the medium in the storage tank.

[0007] In order to achieve the above object, the present application provides a floating cover, comprising a cover body and a fixing ring plate installed outside the cover body, wherein the cover body is formed by a plurality of unit blocks which are connected to each other by connecting pieces, the unit blocks are integrally formed of porous foamed metal material, the surface of the unit blocks is coated with resin, and the gaps between adjacent unit blocks and between the unit blocks and the fixing ring plate are sealed by filling the resin.

[0008] Preferably, the left and right two adjacent unit blocks are arranged in a straight line type by aligning with each other, and the front and rear two adjacent unit blocks are arranged by staggering with each other.

[0009] Preferably, the connecting pieces comprise transverse metal strips which penetrate the unit blocks left and right, longitudinal metal strips which penetrate the unit blocks front and back, and connecting blocks which are used to connect the transverse metal strips of the unit blocks on the left and right sides thereof and the longitudinal metal strips of the unit blocks on the front and back sides thereof, and the transverse metal strips and the longitudinal metal strips which extend outward from the unit blocks outside the cover body are fixedly connected with the fixing ring plate.

[0010] Preferably, the bottom of the fixing ring plate is provided with a support net for supporting the cover body, and the support net is formed by a plurality of transverse beams and longitudinal beams which are connected to each other.

[0011] Preferably, a plurality of supporting legs are arranged on the lower end surface of the support net.

[0012] Preferably, the resin is selected from the resin which is resistant to oil, electrostatically conductive and strong in toughness.

[0013] Preferably, the unit blocks are made of foamed aluminum.

[0014] Preferably, the width of the unit blocks is 300-450 mm, the height of the unit blocks is 100-200 mm, and the length of the unit blocks is 500-3000 mm.

[0015] Preferably, the unit blocks located at the outermost side of the cover body are irregular unit blocks which can make the cover body form a circular shape.

[0016] Preferably, the left and right ends of the connecting blocks are respectively embedded in the unit blocks adjacent thereto, and the left and right sides of the longitudinal metal strips connected with the connecting blocks are respectively embedded in the unit blocks adjacent thereto.

[0017] Preferably, the transverse metal strips and the longitudinal metal strips are both made of steel bars, and the diameter of the steel bars is 10-14 mm; or the transverse metal strips and the longitudinal metal strips are both made of steel plates, the thickness of the steel plates is 2-5 mm, and the width of the steel plates is 10-50 mm.

[0018] Preferably, the cover has a vent hole, a guide post hole for guiding, and a manhole for maintenance, and the vent hole, guide post hole, and manhole are provided with a sealable cover that can be opened and closed.

[0019] Preferably, the height of the fixing ring plate is the same as the height of the unit block, and the thickness of the fixing ring plate is 1-3mm.

[0020] The present invention also provides a storage tank, wherein the storage tank includes the floating roof described in any one of the above technical solutions.

[0021] The floating roof of this invention effectively prevents the medium inside the tank from entering the unit blocks or leaking out through the gaps between the unit blocks and the fixed ring plate by coating the surface of the integrally molded porous foamed metal material unit blocks with resin and filling the gaps between adjacent unit blocks and between the unit blocks and the fixed ring plate. This achieves effective sealing of the tank. At the same time, the use of integrally molded porous foamed metal material unit blocks as buoyancy units increases the load-bearing capacity of the top of the floating roof and effectively prevents the floating roof from sinking. Attached Figure Description

[0022] Figure 1 This is a top view schematic diagram of a floating platform according to one embodiment of the present invention;

[0023] Figure 2 This is a partial top view of a floating platform according to one embodiment of the present invention;

[0024] Figure 3 This is a partial front view schematic diagram of a floating platform according to one embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures

[0026] 1. Unit block, 2. Connector, 21. Horizontal metal strip, 22. Vertical metal strip, 23. Connecting block, 4. Fixing ring plate, 6. Support net, 7. Leg. Detailed Implementation

[0027] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] In this invention, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to... Figure 1 The terms "up," "down," "left," and "right" indicate the inner and outer contours of the structure.

[0029] This invention provides, in one aspect, a floating platform, such as... Figures 1-3As shown, the cover is formed by a plurality of unit blocks 1 which are connected by connecting pieces 2, and the fixing ring plate 4 is mounted outside the cover. The unit blocks 1 are integrally formed of porous foamed metal material, and the surfaces of the unit blocks 1 are coated with resin. The gaps between the adjacent unit blocks 1 and between the unit blocks 1 and the fixing ring plate 4 are sealed by filling resin. The gaps between the unit blocks are sealed by filling resin, so that the gaps between the unit blocks are eliminated, and the whole floating plate is formed as a whole. The surfaces of the unit blocks are coated with resin, so that the surfaces of the unit blocks are formed as dense resin layers, and the medium in the tank is prevented from entering the internal gaps of the unit blocks, so that the possibility of leakage of the floating unit is eliminated from the source. The unit blocks 1 are integrally formed of porous foamed metal material, so that the unit blocks are prevented from being broken, and the problems of leakage or sinking of the floating plate due to the breakage of the unit blocks in the prior art are effectively prevented. The floating plate of the present application is formed by coating the surfaces of the unit blocks which are integrally formed of porous foamed metal material with resin, and sealing the gaps between the adjacent unit blocks and between the unit blocks and the fixing ring plate by filling resin, so that the medium in the tank is effectively prevented from entering the unit blocks or leaking out through the gaps between the unit blocks and between the unit blocks and the fixing ring plate, thereby achieving effective sealing of the tank. Meanwhile, the unit blocks which are integrally formed of porous foamed metal material are used as the floating unit, so that the load bearing capacity of the top of the floating plate is improved, and the phenomenon of sinking of the floating plate is effectively prevented.

[0030] In order to make the structure of the floating plate more firm and stable as a whole, the left and right adjacent two unit blocks 1 are arranged in a straight line type, and the front and rear adjacent two unit blocks 1 are arranged staggered.

[0031] Further, the connecting piece 2 includes a transverse metal strip 21 which penetrates the unit blocks 1 left and right, a longitudinal metal strip 22 which penetrates the unit blocks 1 front and rear, and a connecting block 23 which is used to connect the transverse metal strips 21 of the unit blocks 2 which are located left and right of the connecting block 23 and the longitudinal metal strips 22 of the unit blocks 2 which are located front and rear of the connecting block 23. The transverse metal strips 21 and the longitudinal metal strips 22 which extend outward from the unit blocks 1 outside the cover are fixedly connected with the fixing ring plate 4. The plurality of unit blocks 1 and the fixing ring plate 4 are connected together by the transverse metal strips 21 and the longitudinal metal strips 22, so that the unit blocks and the fixing ring plate form a complete, firm and tough whole, and the strength and service life of the floating plate are improved. The connecting mode between the connecting block 23 and the transverse metal strips 21 and the longitudinal metal strips 22 is screw connection, buckle connection, etc.

[0032] In order to prevent the deformation of the horizontal metal strip 21 and the longitudinal metal strip 22 when the unit block is subjected to force from above, and to prevent the size of the gap between the unit blocks 1 and between the unit block 1 and the fixed ring plate 4 from changing, and to affect the sealing effect between the unit blocks 1 and between the unit block 1 and the fixed ring plate 4, the bottom of the fixed ring plate 4 is provided with a support net 6 for supporting the cover body. The support net 6 is formed by splicing a plurality of horizontal beams and longitudinal beams. When the unit block is subjected to force from above, the support net 6 can provide strong support for the bottom of the unit block, prevent the deformation of the horizontal metal strip 21 and the longitudinal metal strip 22, and effectively disperse the pressure from above the unit block. The horizontal beams and the longitudinal beams are fixedly connected by threads or buckles.

[0033] When the maintenance personnel enter the tank to maintain the floating disc, in order to support the cover body formed by splicing the unit blocks and not to touch the oil inlet pipe, the stirrer and other accessories on the bottom of the tank, a plurality of supporting legs 7 are arranged on the lower end surface of the support net 6.

[0034] In order to further improve the sealing effect of the floating disc and make the floating disc as a whole have the characteristics of oil resistance, static electricity conduction and strong toughness, the resin is selected from oil-resistant, static electricity-conductive and strong-toughness resins such as vinyl resin, p-benzene unsaturated polyester resin and epoxy resin.

[0035] Further, the unit block 1 is made of foamed aluminum. Preferably, the density of the foamed aluminum is 100-300 kg / m 3

[0036] Specifically, in order to facilitate installation and ensure the buoyancy of the floating disc, the width of the unit block 1 is 300-450 mm, the height of the unit block 1 is 100-200 mm, and the length of the unit block 1 is 500-3000 mm.

[0037] Further, the unit block 1 located at the outermost side of the cover body is a special-shaped unit block capable of forming a circular cover body.

[0038] In order to reduce the gap between the unit blocks and further improve the sealing performance of the floating disc, the left and right ends of the connecting block 23 are respectively embedded in the adjacent unit blocks 1, and the left and right sides of the longitudinal metal strip 22 connected with the connecting block 23 are respectively embedded in the adjacent unit blocks 1.

[0039] Preferably, the horizontal metal strip 21 and the longitudinal metal strip 22 are both made of steel bars with a diameter of 10-14 mm, or the horizontal metal strip 21 and the longitudinal metal strip 22 are both made of steel plates with a thickness of 2-5 mm and a width of 10-50 mm.

[0040] In order to facilitate maintenance, the cover body is provided with a vent hole, a guide column hole for guiding and a manhole for maintenance, and the vent hole, the guide column hole and the manhole are provided with openable and closable sealing covers.

[0041] In order to further improve the integrity of the floating disc, the height of the fixed ring plate 4 is the same as the height of the unit block 1, and the thickness of the fixed ring plate 4 is 1-3mm.

[0042] The application also provides a storage tank comprising the floating disc in the above technical solution. The technical solution and advantages of the storage tank are the same as those of the floating disc, and will not be described here again.

[0043] The preferred embodiments of the application are described in detail above with reference to the drawings, but the application is not limited thereto. Within the technical concept of the application, various simple modifications can be made to the technical solution of the application, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, various possible combination manners are not described again in the application. However, these simple modifications and combinations should also be regarded as the disclosed content of the application and belong to the protection scope of the application.

Claims

1. A floating platform, characterized in that: The cover includes a cover body and a fixing ring plate (4) installed on the outside of the cover body. The cover body is composed of multiple unit blocks (1) spliced ​​together by connectors (2). The unit blocks (1) are integrally formed porous foamed metal materials. The connectors (2) penetrate through the unit blocks (1). The surface of the unit blocks (1) is coated with resin. The gaps between adjacent unit blocks (1) and between the unit blocks (1) and the fixing ring plate (4) are sealed by filling with the resin. The bottom of the fixing ring plate (4) is provided with a support net (6) for supporting the cover body. The support net (6) is composed of multiple cross beams and longitudinal beams spliced ​​together. Wherein, two adjacent unit blocks (1) on the left and right are aligned in a straight line, and two adjacent unit blocks (1) in front and behind are staggered. The connector (2) includes a transverse metal strip (21) that runs through the unit block (1) from left to right, a longitudinal metal strip (22) that runs through the unit block (1) from front to back, and a connecting block (23). The connecting block (23) is used to connect the transverse metal strip (21) of the unit block (1) on its left and right sides and the longitudinal metal strip (22) of the unit block (1) on its front and back sides. The transverse metal strip (21) and the longitudinal metal strip (22) extending outward from the unit block (1) located outside the cover are fixedly connected to the fixing ring plate (4). The left and right ends of the connecting block (23) are respectively embedded in the adjacent unit block (1), and the left and right sides of the longitudinal metal strip (22) connected to the connecting block (23) are respectively embedded in the adjacent unit block (1).

2. The floating roof according to claim 1, characterized in that: The lower end face of the support net (6) is provided with multiple legs (7).

3. The floating roof according to claim 1 or 2, characterized in that: The unit block (1) is made of aluminum foam.

4. The floating roof according to claim 1 or 2, characterized in that: The width of the unit block (1) is 300-450mm, the height of the unit block (1) is 100-200mm, and the length of the unit block (1) is 500-3000mm.

5. The floating roof according to claim 1 or 2, characterized in that: The unit block (1) located on the outermost side of the cover is an irregularly shaped unit block that enables the cover to form a circle.

6. The floating roof according to claim 1, characterized in that: Both the transverse metal strip (21) and the longitudinal metal strip (22) are made of steel bars with a diameter of 10-14 mm; or both the transverse metal strip (21) and the longitudinal metal strip (22) are made of steel plates with a thickness of 2-5 mm and a width of 10-50 mm.

7. The floating roof according to claim 1 or 2, characterized in that: The cover has a vent hole, a guide post hole for guidance, and a manhole for maintenance. The vent hole, guide post hole, and manhole are equipped with a sealable cover that can be opened and closed.

8. The floating roof according to claim 1 or 2, characterized in that: The height of the fixing ring plate (4) is the same as the height of the unit block (1), and the thickness of the fixing ring plate (4) is 1-3mm.

9. A storage tank, characterized in that: The storage tank includes the floating roof as described in any one of claims 1-8.

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