Full-liquid-receiving floating disc unit, floating disc unit assembly and floating disc

Abstract

The utility model provides a full liquid receiving floating disc unit, a floating disc unit assembly and a floating disc, the full liquid receiving floating disc unit comprises a lower frame, a reinforcing rib and an upper plate, the reinforcing rib comprises a cross-shaped or #-shaped unit formed by vertically intersected supporting strips, and the lower end of the reinforcing rib is welded with a bottom plate; the upper plate is provided with a kerf; the upper ends of the reinforcing ribs penetrate through the kerfs of the upper plate and are welded with the upper plate; the side walls of the upper plate and the bottom plate are welded to form a box body; a mounting strip is arranged at the lower part of the box body. The reinforcing ribs welded with the lower frame and the upper plate are arranged in the box body of the floating disc unit, so that the structural rigidity of the whole floating disc unit is improved; the floating disc unit assemblies are connected with floating disc units through I-shaped beams and channel steel, installation is convenient and fast, and the overall rigidity of the floating disc units is further improved; the floating disc is firm and reliable in structure, good in rigidity of the whole floating disc, high in sealing performance and capable of restraining oil volatilization and dissipation from the source and reducing emission of volatile organic compounds.

Description

Technical Field

[0001] The utility model relates to the technical field of storage tank floating roofs, and particularly relates to a fully liquid-contact floating roof unit, a floating roof unit assembly and a floating roof. Background Art

[0002] A floating roof is an energy-saving and environmental protection device covering the liquid surface that rises and falls with the liquid level of a storage tank by buoyancy. It is one of the important functional components of a floating roof storage tank. The storage tank can seal the stored medium by installing a floating roof, reduce the volatilization of the medium in the storage tank, and reduce losses and save energy.

[0003] At present, the common storage tank floating roofs at home and abroad are mainly pontoon type and fully liquid-contact type. Among them, the pontoon structure floating roof has oil and gas at the top, which accelerates the corrosion of the floating roof and poses a safety hazard. Especially under long-term use conditions, the disadvantages of the pontoon type floating roof are more obvious. The bottom of the fully liquid-contact floating roof is fully immersed in the stored liquid, realizing full contact between the floating roof and the liquid. Among the floating roofs used in the field of petrochemical storage tanks at present, it can float up and down with the liquid surface to achieve dynamic balance, and it is a safe and environment-friendly floating roof structure.

[0004] However, in the prior art, most floating roof storage tanks use metal floating roofs. Due to the limitations of structure and materials, the metal floating roofs bring some uncertain safety hazards, resulting in poor service life and energy conservation and emission reduction effects. For example, Patent CN211469466U discloses a food-grade fully liquid-contact floating roof module. The floating roof module is formed by folding a stainless steel plate into a box body, and a plurality of isolation cavities with honeycomb or corrugated cores are arranged in the box body. If one isolation cavity leaks, it will not cause other cavities to leak. Patent CN211944630U discloses a fully liquid-contact welded stainless steel floating roof, including a floating roof body, an oil measuring and guide column sealing device, an automatic vent valve, an edge vent valve, an anti-rotation device, a static conductive steel wire rope, floating roof legs, a manhole and a ladder, and an edge plate installed on the floating roof body, to solve the problems of poor stability, low strength and easy volatilization of oil products at the joints of the existing floating roofs. Patent CN211469465U discloses a fully liquid-contact brazed aluminum floating roof module, including a module core, a pressing plate and a clamping profile. The module core, the pressing plate and the clamping profile are made of aluminum and are welded and sealed with each other. It is worth noting that these patents adopt technical solutions of welding or splicing with carbon steel, stainless steel and aluminum alloy. The internal core of the floating roof unit and the floating roof body adopt a honeycomb aluminum bonding structure. Such a floating roof is easy to debond during use, resulting in the failure of the floating roof. Summary of the Utility Model

[0005] In view of the deficiencies in the prior art, the present utility model discloses a fully liquid-receiving floating disc unit, a floating disc unit assembly and a floating disc. The box body of the fully liquid-receiving floating disc unit is provided with reinforcing ribs welded to the upper plate and the lower frame, which improves the rigidity of the floating disc unit and ensures the firm and reliable structure of the floating disc unit.

[0006] In order to achieve the above technical objectives, on the one hand, the present utility model provides a fully liquid-receiving floating disc unit, comprising:

[0007] A lower frame, the lower frame includes a bottom plate and side walls extending upward from the edge of the bottom plate; a reinforcing rib, the reinforcing rib includes a cross or grid-shaped unit formed by vertically intersecting bars, and the lower end of the reinforcing rib is welded to the bottom plate; an upper plate, the upper plate is provided with a slit; the upper end of the reinforcing rib penetrates through the slit of the upper plate and is welded to the upper plate; the upper plate is welded to the side walls of the bottom plate to form a box body; an installation strip is provided at the lower part of the box body.

[0008] In the above technical solution, the use of reinforcing ribs for support in the box body improves the structural stability and durability of the overall floating disc unit; and the lower end of the reinforcing rib is welded to the upper surface of the bottom plate of the lower frame, and the other end penetrates through the slit of the upper plate and is welded to the upper plate, so that the upper and lower ends of the reinforcing rib are firmly connected to the lower frame and the upper plate of the floating disc unit respectively, improving the rigidity of the floating disc unit and making its structure more stable and durable. In addition, the lower frame of the floating disc unit is bent from a whole stainless steel plate on four sides, and then the joints of the four sides are welded by welding, so as to ensure that there are no welding points at the edges of the lower surface of the floating disc unit, avoiding welding leakage points in the liquid-receiving part during the use of the floating disc, and greatly avoiding the leakage problem of the lower plate of the floating disc unit. In addition, an installation strip is provided at the lower part of the floating disc in the above technical solution, which is convenient for bolt connection during the splicing of the floating disc units.

[0009] In the prior art, in order to ensure the buoyancy of the floating disc unit, the upper plate and the bottom plate of the lower frame of the floating disc unit are often designed to be relatively thin. Correspondingly, a core body (the reinforcing rib in the present utility model) needs to be provided in the box body of the floating disc unit to support the upper plate and the bottom plate of the lower frame. For a floating disc unit with an adhesive-type honeycomb or corrugated core body, if the core body is debonded, the support force between the upper plate and the bottom plate of the lower frame will differ by dozens of times, which will seriously affect the structural stability of the floating disc unit and may cause inestimable losses; while the floating disc unit of the present utility model connects the reinforcing rib with the upper plate and the bottom plate of the lower frame by welding, and compared with the floating disc unit with an adhesive core body in the prior art, the structure is more stable, and the rigidity and durability are better.

[0010] In a further example of the present utility model, the connection method of the reinforcing rib and the upper plate, the structures of the side wall and the upper plate, etc. are optimized to further enhance the performance of the floating disc unit and improve the convenience of installation. Specific optimized technical features are shown in the embodiments of the present utility model.

[0011] On the other hand, the present utility model provides a fully liquid-contact floating disc unit assembly, which includes at least two of the above-mentioned fully liquid-contact floating disc units; an I-beam, the upper and lower plates of the I-beam are respectively connected to a first channel steel and a second channel steel, the two flanges of the first channel steel are respectively connected to the upper ends of the side walls of two adjacent fully liquid-contact floating disc units, and the two flanges of the second channel steel are respectively connected to the mounting strips of the two adjacent fully liquid-contact floating disc units.

[0012] The above technical solution assembles two fully liquid-contact floating disc units into a whole through the I-beam and the channel steel, and can connect more fully liquid-contact floating disc units in this way. This not only improves the overall stiffness of the floating disc connection, but also further enhances the safety of the floating disc during use. In addition, the assembly operation of the floating disc unit assembly is very convenient.

[0013] On the other hand, the present utility model provides a fully liquid-contact floating disc including the above-mentioned fully liquid-contact floating disc unit or the above-mentioned fully liquid-contact floating disc unit assembly.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: reinforcing ribs welded to the lower frame and the upper plate are provided in the box body of the floating disc unit, which improves the structural stiffness of the overall floating disc unit; the floating disc unit assembly uses an I-beam and a channel steel to connect the floating disc units, which is not only convenient for installation, but also further improves the overall stiffness of the floating disc units; the structure of the floating disc of the present utility model is firm and reliable, the overall floating disc has good rigidity and strong sealing performance, and can inhibit the volatilization and emission of oil products and reduce the emission of volatile organic compounds from the source. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0016] Figure 1 Shows a structural diagram of a floating disc unit of the present utility model;

[0017] Figure 2 Shows a partial structural diagram of the floating disc structure of the present utility model;

[0018] Figure 3 Shows a structure of the reinforcing rib of the floating disc unit of the present utility model;

[0019] Figure 4 Shows a structure of the upper plate of the floating disc unit of the present utility model;

[0020] Figure 5 Shows a structural diagram of a floating disc unit assembly of the present utility model;

[0021] Figure 6 Shows a partial structural diagram of the floating disc unit assembly of the present utility model.

[0022] Among them, the above-mentioned drawings include the following reference numerals:

[0023] 1 - lower frame, 2 - reinforcing rib, 21 - groove, 3 - upper plate, 31 - slit, 32 - continuous convex platform, 4 - mounting strip, 5 - vacuum leak detection valve; 6 - I-beam, 61 - rivet bolt, 71 - first channel steel, 72 - second channel steel, 8 - clamping strip. Detailed implementation manner

[0024] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below, and preferred embodiments of the present utility model are given. However, it should be understood that these embodiments are only for more detailed description, and should not be construed as limiting the present utility model in any form, that is, it is not intended to limit the protection scope of the present utility model.

[0025] For ease of explanation, spatial relative terms such as "upper" and "lower" are used in the embodiments to describe the relationship of one element or feature shown in the drawings relative to another element or feature. It should be understood that in addition to the orientation shown in the drawings, the spatial terms are intended to include different orientations during the use or operation of the device. For example, if the device in the drawings is inverted, the element described as being "below" other elements or features will be positioned "above" other elements or features. Therefore, the exemplary term "lower" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. Moreover, relational terms such as "first" and "second" are only used to distinguish one component with the same name from another, and do not necessarily require or imply any such actual relationship or order between these components.

[0026] Embodiment 1

[0027] A fully liquid-contact floating disc unit, as Figure 1 and Figure 2 shown, the floating disc unit includes:

[0028] Lower frame 1, the lower frame 1 includes a bottom plate and side walls extending upward from the edge of the bottom plate;

[0029] Reinforcing rib 2, the reinforcing rib 2 includes a cross or grid-shaped unit formed by vertically intersecting struts, and the lower end of the reinforcing rib 2 is welded to the bottom plate;

[0030] The upper plate 3 is provided with a cutting slot 31; the upper end of the reinforcing rib 2 penetrates through the cutting slot 31 of the upper plate 3 and is welded to the upper plate 3; the upper plate 3 is welded to the side wall of the bottom plate to form a box body; an installation strip 4 is provided at the lower part of the box body.

[0031] During the preparation process of the floating disc unit of the present utility model, it is optional to splice the prefabricated lower frame 1, reinforcing rib 2 and upper plate 3 on-site in the storage tank. Specifically, the reinforcing rib 2 can be first welded to the upper surface of the bottom plate of the lower frame 1; then the upper end of the reinforcing rib 2 penetrates through the cutting slot 31 of the upper plate 3. After the upper plate 3 and the reinforcing rib 2 are spliced in an insertion form, the splicing seam at the insertion part is welded. Thus, there is no need to adhesively connect the reinforcing rib 2 and the upper plate 3, solving the problem of difficult welding between the reinforcing rib 2 and the upper plate 3 in the prior art; finally, the upper plate 3 is welded to the four side walls of the lower frame 1 to form a fully liquid-tight floating disc unit structure with stable structure.

[0032] It should be noted that the material of the fully liquid-tight floating disc unit in this embodiment is not limited, and it can be selected from aluminum, stainless steel, composite materials. The composite materials can be selected from fiberglass, carbon fiber reinforced plastics, etc. Those skilled in the art can select suitable materials for preparing the fully liquid-tight floating disc unit used herein through non-creative labor. The technical solutions formed thereby are all within the protection scope of the present utility model.

[0033] Embodiment 2

[0034] It is worth noting that the reinforcing rib 2 of the fully liquid-tight floating disc unit shown in Embodiment 1 of the present utility model is formed by multiple struts intersecting vertically to form a cross or grid-shaped unit, and the number of cross or grid-shaped units can be 1 or more. Based on the fully liquid-tight floating disc unit shown in Embodiment 1, the structure of the reinforcing rib 2 is optimized in this embodiment.

[0035] Specifically, the reinforcing rib 2 includes multiple cross or grid-shaped units. Those skilled in the art will understand that compared with the reinforcing rib 2 including only 1 cross or 1 grid shape, increasing the number of cross or grid-shaped units included in the reinforcing rib 2 in this embodiment can enhance the supporting performance of the reinforcing rib 2, making the structure of the floating disc unit more firm and durable.

[0036] It should be noted that the arrangement mode of multiple cross or grid-shaped units in this embodiment is not limited. Multiple cross-shaped units can be arranged in the vertical or horizontal direction, or multiple grid-shaped units can be arranged in the horizontal and / or vertical direction. For example Figure 1 and Figure 2 shows the floating disc structure with multiple cross-shaped units arranged in the vertical direction. Those skilled in the art can set a suitable arrangement mode of cross or grid-shaped units through non-creative labor. The solutions formed thereby are all within the protection scope of the present utility model.

[0037] It should be noted that in this embodiment, terms such as horizontal and vertical are only used to describe the relative positions between two or more struts, and do not limit the arrangement of the struts of the reinforcing rib 2 of the present utility model relative to the upper frame or the upper plate 3.

[0038] Embodiment 3

[0039] Based on the fully liquid-receiving floating disc unit shown in Embodiment 1, the connection method between the reinforcing rib 2 and the upper plate 3 is optimized in this embodiment.

[0040] Specifically, as Figure 3 shown, at the upper end of the reinforcing rib 2, grooves 21 are provided on the horizontal and / or vertical struts at any one or more intersections. As Figure 4 shown, slits 31 are provided on the upper plate 3 for the rest of the strut parts except the grooves 21 to penetrate. Thus, during the assembly process of the floating disc unit, the upper plate 3 can be covered on the reinforcing rib 2, and the rest of the strut parts of the reinforcing rib 2 except the grooves 21 are exposed from the upper plate 3 through the slits 31, providing an operating point for welding connection; the installation method of the floating disc unit shown in this embodiment is more flexible and convenient, and the installation efficiency is high.

[0041] It should be noted that the number of intersections of the struts provided with grooves 21 in this embodiment is not limited, and it can be 1 intersection or several intersections. When there are multiple intersections of struts provided with grooves 21, the relative positions between the multiple intersections are not limited either. Those skilled in the art can set the intersections with grooves 21 in a suitable layout according to actual needs, and set the layout of the slits 31 on the upper plate 3 that matches the arrangement of the intersection grooves 21. The technical solutions formed thereby are all within the protection scope of the present utility model.

[0042] In addition, it should be noted that the number and position of the grooves 21 at any one intersection with grooves 21 in this embodiment are not limited either. For example, grooves 21 can be opened on parallel struts, or grooves 21 can be opened on vertical struts, or grooves 21 can be opened on both parallel and vertical struts. Those skilled in the art can set the struts with grooves 21 in a suitable number according to actual needs, and set the layout of the slits 31 on the upper plate 3 that matches it. The technical solutions formed thereby are all within the protection scope of the present utility model.

[0043] Further optionally, at the upper end of the reinforcing rib 2, the horizontal strut at any one intersection is provided with a groove 21 at the intersection. Figure 3 shows the structure of the reinforcing rib 2 with grooves 21 opened on the horizontal strut. This way of opening the grooves 21 forms continuous grooves 21 of the reinforcing rib 2, which is convenient for the processing and prefabrication of the floating disc reinforcing rib 2 and the processing and prefabrication of the upper plate 3 that matches it, and also further simplifies the difficulty of subsequent installation of the floating disc unit.

[0044] Even more optionally, the upper plate 3 is provided with continuous bosses 32 in the vertical direction, asFigure 4 As shown in Figure 4 , matching with the continuous grooves 21 provided on the horizontal strips of the reinforcing rib 2, continuous parallel slits 31 are provided on the upper plate 3. By providing continuous bosses between the slits 31 (in the vertical direction), the stiffness of the upper plate 3 can be enhanced, further reducing the assembly difficulty and improving the overall performance of the floating disc unit.

[0045] It should be noted that this embodiment is only a better display and is not intended to limit the connection method between the reinforcing rib 2 and the upper plate 3. Those skilled in the art can, based on the present utility model, make the upper end of the reinforcing rib 2 penetrate through the slit 31 on the upper plate 3 in other ways, so that the upper and lower ends of the reinforcing rib 2 of the floating disc unit of the present utility model are respectively welded to the upper plate 3 and the lower frame 1.

[0046] Embodiment 4

[0047] Based on the fully liquid-receiving floating disc unit shown in Embodiment 1, the structure of the side wall is optimized in this embodiment.

[0048] Specifically, openings are provided at the upper ends of the side walls. In this embodiment, openings are provided at the upper parts of the four sides of the floating disc unit, which is convenient for screwing when the floating disc units are spliced together, thereby enhancing the tightness of the connection of the floating disc units through the lower mounting strips 4 and making the connection between adjacent floating disc units more stable.

[0049] Embodiment 5

[0050] Based on the fully liquid-receiving floating disc unit shown in Embodiment 1, the structure of the upper plate 3 is optimized in this embodiment.

[0051] Specifically, the upper plate 3 is provided with a vacuum leak detection valve 5. After the floating disc unit is assembled, the floating disc unit can be tested for reliable sealing by evacuating. Those skilled in the art will understand that based on the method for detecting the sealing performance of the floating disc unit in this embodiment, although the reinforcing rib 2 of the present utility model is tightly welded to the lower frame 1 and the upper plate 3, it does not limit that a sealed small unit is formed in the box body of the floating disc unit of the present utility model. Those skilled in the art can, through non-creative labor, provide a connection that communicates each small unit in the box body, and the technical solutions formed thereby are all within the protection scope of the present utility model.

[0052] Embodiment 6

[0053] A fully liquid-receiving floating disc unit assembly, as Figure 5 and Figure 6 shown, includes at least two of the above-mentioned fully liquid-receiving floating disc units; an I-beam 6, the upper and lower plates of the I-beam 6 are respectively connected to a first channel steel 71 and a second channel steel 72, the two flanges of the first channel steel 71 are respectively connected to the upper ends of the side walls of two adjacent fully liquid-receiving floating disc units, and the two flanges of the second channel steel 72 are respectively connected to the mounting strips 4 of two adjacent fully liquid-receiving floating disc units.

[0054] Optionally, the upper and lower plates of the I-beam 6 are respectively assembled with the first channel steel 71 and the second channel steel 72 into a whole through blind rivet bolts 61; Further optionally, the two flanges of the channel steels are respectively provided with openings, so that the side walls of adjacent floating disc units can be connected by bolts.

[0055] Embodiment 7

[0056] Based on the fully liquid-contact floating disc unit assembly shown in Embodiment 6, in this embodiment, the connection between the first channel steel 71 and the second channel steel 72 and the fully liquid-contact floating disc unit is optimized.

[0057] Specifically, as Figure 6 shown, a clamping strip 8 is provided between the first channel steel 71 and the second channel steel 72 and the side walls of two adjacent fully liquid-contact floating disc units, so that the clamping strip 8 can be inserted when the channel steel is connected to the side wall and the mounting strip 4 of the floating disc unit, improving the connection tightness and preventing oil and gas from escaping from the gaps of the floating disc; In addition, the clamping strip 8 is an XPE (chemically cross-linked polyethylene foam material), rubber or polytetrafluoroethylene clamping strip 8, all of which are oil-resistant materials, not only with strong durability but also not affecting the quality of the stored materials, and have good practicability.

[0058] It should be noted that the above content is a further detailed description of the present invention in combination with specific implementation manners, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions; the size data of this embodiment does not necessarily limit the technical solution, but only shows one specific working condition. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple improvements and refinements can still be made, and all of them should be regarded as belonging to the protection scope of the present invention.

Claims

1. A fully liquid-connected floating plate unit, characterized in that: include: A lower frame (1), the lower frame (1) comprising a bottom plate and side walls extending upward from the edge of the bottom plate; A reinforcing rib (2), the reinforcing rib (2) comprising a cross or tic-tac-toe shaped unit formed by vertically intersecting branches, the lower end of the reinforcing rib (2) being welded to the bottom plate; An upper plate (3), the upper plate (3) being provided with a slit (31); the upper end of the reinforcing rib (2) passing through the slit (31) of the upper plate (3) and being welded to the upper plate (3); the upper plate (3) and the side wall of the bottom plate being welded to form a box body; a mounting strip (4) being provided at the lower part of the box body.

2. The fully liquid-connected floating plate unit according to claim 1, characterized in that: The reinforcing rib (2) comprises a plurality of cross-shaped or tic-tac-toe-shaped units.

3. The fully liquid-contacted floating disc unit according to claim 1 or 2, characterized in that: At the upper end of the reinforcing rib (2), any one or more intersections of the horizontal and / or vertical branches are provided with grooves (21), and the upper plate (3) is provided with slits (31) for penetrating the remaining parts of the branches except the grooves (21).

4. The fully liquid-contacted floating plate unit according to claim 3, characterized in that: At the upper end of the reinforcing rib (2), a horizontal branch at any intersection is provided with a groove (21) at the intersection.

5. The fully liquid-contacted floating plate unit according to claim 4, characterized in that: The upper plate (3) is provided with a continuous boss (32) along the vertical direction.

6. The fully liquid-connected floating plate unit according to claim 1, characterized in that: An opening is provided at the upper end of the side wall.

7. The fully liquid-connected floating plate unit according to claim 1, characterized in that: The upper plate (3) is provided with a vacuum leak detection valve (5).

8. A fully liquid-connected floating plate unit assembly, characterized in that: include: At least 2 fully liquid-wetted floating disc units according to any one of claims 1 to 7; An I-beam (6), wherein the upper and lower plates of the I-beam (6) are respectively connected to a first channel steel (71) and a second channel steel (72), wherein the two flanges of the first channel steel (71) are respectively connected to the upper ends of the side walls of two adjacent fully liquid-contacting floating plate units, and the two flanges of the second channel steel (72) are respectively connected to the mounting strips (4) of two adjacent fully liquid-contacting floating plate units.

9. The fully liquid-contacted floating plate unit assembly according to claim 8, characterized in that: A buckling strip (8) is provided between the first groove steel (71) and the second groove steel (72) and the side walls of two adjacent fully liquid-contacting floating disc units; the buckling strip (8) is an XPE, rubber or polytetrafluoroethylene buckling strip (8).

10. A fully liquid-receiving floating plate, characterized in that: It comprises the full-liquid-contact floating disk unit according to any one of claims 1 to 7 or the full-liquid-contact floating disk unit assembly according to any one of claims 8 to 9.

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