An automatic drainage device for preventing overflow of an inner floating roof storage tank

Abstract

The utility model relates to the technical field of automatic drainage of inner floating roof, especially to a kind of automatic drainage device for preventing overflow of inner floating roof storage tank, comprising: drainage tank, its top edge is equipped with opening, the drainage tank is fixedly connected with drainage tank grid by opening, the drainage tank grid is used to isolate solid from the drainage tank grid into the drainage tank, and make that only waterlogging can pass through the drainage tank grid into the drainage tank;Drainage tank float, it is set in the drainage tank grid below both sides, drainage tank float below is equipped with float supporting plate, the float supporting plate below is equipped with first float support and second float support, the drainage tank float is used to rise with waterlogging, and when the drainage tank float rises to higher than the height of the second float support, drainage passage is opened, to prevent waterlogging overflow.The utility model can effectively remove waterlogging above inner floating roof, improve the safety of inner floating disc operation, ensure the safe and stable operation of inner floating roof storage tank.

Description

Technical Field

[0001] This utility model relates to the field of automatic drainage technology for internal floating roof tanks, and in particular to an automatic drainage device for preventing overflow of internal floating roof tanks. Background Technology

[0002] An internal floating roof is a floating top that floats on the liquid surface inside an internal floating roof tank and rises and falls with the oil. Its main function is to reduce the evaporation loss of the stored liquid, reduce VOCs volatilization, achieve source control, and reduce air pollution. Under conditions such as rainfall, condensation caused by temperature differences, or steaming and purging processes, water can easily accumulate on the top of the internal floating roof of the tank. Excessive water accumulation can affect the strength and stability of the internal floating roof, causing safety risks such as the internal floating roof deviating, jamming, and sinking. Therefore, an automatic overflow drainage device for internal floating roof tanks is needed to effectively remove water accumulated above the internal floating roof, improve the operational safety of the internal floating roof, and ensure the safe and stable operation of the internal floating roof tank. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic drainage device for preventing overflow of internal floating roof tanks, so as to solve at least one of the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An automatic overflow prevention drainage device for internal floating roof tanks includes: A drainage tank is connected to a drainage tank mesh through an upper opening. The drainage tank mesh is used to prevent solid objects from entering the drainage tank through the drainage tank mesh, and to ensure that water can only enter the drainage tank through the drainage tank mesh. A drainage tank float is located on both sides below the drainage tank grid. A float support plate is provided below the drainage tank float, and a first float bracket and a second float bracket are provided below the float support plate. The drainage tank float is used to rise with the water accumulation, and to open the drainage channel when the drainage tank float rises to a height higher than the second float bracket to prevent water overflow. The drainage tank float is also used to seal the drainage tank together with the first float bracket, the second float bracket, and the float support plate when the water level is lower than the first float bracket to prevent the stored liquid from evaporating.

[0005] Furthermore, the drainage box mesh is a mesh structure.

[0006] Furthermore, it also includes: a drain tank flange, which is disposed at both ends of the upper part of the drain tank, a flange sealing gasket is provided below the drain tank flange, and a drain tank flange handle is provided above the drain tank flange. The drain tank flange, flange sealing gasket and drain tank flange handle are used to combine to achieve sealing and disassembly of the drain tank, so that when sealed, the water accumulated in the drain tank enters the drain tank from the drain tank mesh.

[0007] Furthermore, the flange sealing gasket is made of nitrile rubber.

[0008] Furthermore, the side plate mesh bolts are M8 bolts, and there are 20 of them.

[0009] Furthermore, a side plate mesh is provided on one side of the drainage tank float, and a side plate mesh bolt is provided at one end of the side plate mesh. The side plate mesh bolt is used to fix the side plate mesh. The side plate mesh is used to remove the drainage tank float from the side plate mesh for maintenance and replacement when the drainage tank is inspected.

[0010] Furthermore, a partition plate is provided at the end of the second pontoon support away from the first pontoon support. The partition plate is used to allow water to flow out of the drainage box from the top of the partition plate when the water level is higher than the height of the partition plate, thereby preventing water from overflowing from the mesh of the drainage box.

[0011] Furthermore, a welding hinge is provided below the side panel mesh plate, which is used to connect the side panel mesh plate to the drainage tank, and the welding hinge is used to enable the side panel mesh plate to open and close.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: The automatic overflow drainage device for internal floating roof tanks provided by this utility model can automatically and promptly drain the water accumulated above the internal floating roof to the bottom, effectively avoiding problems such as reduced strength and stability of the internal floating roof caused by excessive water accumulation, thereby significantly reducing the safety risks of deviating, jamming, and sinking. The device has a reasonable structure, anti-clogging and anti-overflow functions, is simple and reliable to operate, requires no external power, improves the operational safety and stability of internal floating roof tanks, fills the gap of lacking a dedicated drainage device for internal floating roofs, and has good practical value and promotion prospects. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1This is a front view of the automatic drainage device for preventing overflow of internal floating roof tanks, applicable to this embodiment.

[0015] Figure 2 This is a top view of the drainage tank grid in this embodiment.

[0016] Figure 3 This is a top view of the drainage tank flange in this embodiment.

[0017] Figure 4 This is a side view of the side panel mesh in this embodiment.

[0018] Figure 5 This is a side view of the pontoon support in this embodiment. Detailed Implementation

[0019] To more clearly illustrate this utility model, the preferred embodiments and accompanying drawings will be used for further description. Similar components in the drawings are indicated by the same reference numerals. Those skilled in the art should understand that the specific description below is illustrative rather than restrictive and should not be construed as limiting the scope of protection of this utility model.

[0020] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0021] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Furthermore, it should be noted that although the terms "first," "second," "third," etc., may be used in the embodiments of this application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of this application, "first" may also be referred to as "second," and similarly, "second" may also be referred to as "first."

[0023] Specifically, the automatic overflow prevention drainage device for internal floating roof tanks described in this application is installed below the floating roof of the internal floating roof tank and is fixedly connected to the floating roof of the internal floating roof tank by bolts. The automatic overflow prevention drainage device for internal floating roof tanks provided in this application is used to drain the uneven force on the floating roof caused by condensation in the floating roof of the internal floating roof tank, so as to avoid the floating roof from being affected by excessive water accumulation, thus affecting the strength and stability of the internal floating roof. At the same time, the automatic overflow prevention drainage device for internal floating roof tanks achieves the balance between the accumulated water and the floating roof, preventing the floating roof from deviating, jamming, or sinking.

[0024] Please see Figure 1 As shown, this embodiment describes an automatic overflow prevention and drainage device for internal floating roof tanks, comprising: Drainage tank 1, the drainage tank has an opening on its top edge (not shown in the figure), the drainage tank is fixedly connected to the drainage tank mesh 2 through the opening, the drainage tank mesh 2 is used to prevent solid objects from falling into the drainage tank 1.

[0025] Specifically, the top edge mentioned in this application refers to a rectangular space on the top of the drain tank, with several openings on the edge of the rectangular space. The size of the rectangular space is 3cm smaller than the edge length of the drain tank mesh, so that the drain tank mesh can be connected to the top of the drain tank via the openings and bolts or other fixing components. This application does not specify the number of openings, which can be freely set by those skilled in the art. In this application, four openings can be set at the four vertices of the rectangular space.

[0026] Please see Figure 2 As shown, this is the drainage tank grid of this embodiment. The drainage tank grid 2 is a grid structure, which consists of two columns of symmetrical rectangular grids of different sizes.

[0027] Specifically, the rectangular shape of the drainage tank mesh structure described in this application is specifically defined. Those skilled in the art can set it themselves based on the solid volume of the internal floating roof tank, as long as it meets the functional requirement of "preventing solid objects from falling into the tank." Please refer to [link / reference]. Figure 2 As shown, this application uses a double-row grid, with 13 rectangular grids in one row.

[0028] Please continue reading. Figure 1 As shown, this embodiment of the automatic overflow prevention drainage device for internal floating roof tanks also includes two drainage tank flanges 3 at both ends above the drainage tank 1, a flange sealing gasket 4 below the drainage tank flange 3, and a drainage tank flange handle 5 above the drainage tank flange 3. The drainage tank flange 3, the flange sealing gasket 4, and the drainage tank flange handle 5 are used together to achieve sealing and disassembly of the drainage tank 1, so that the accumulated water enters the drainage tank 1 from the drainage tank mesh and prevents the stored liquid evaporation gas from overflowing the drainage tank 1.

[0029] Specifically, the flange gasket in this embodiment is made of nitrile rubber to achieve a better sealing effect; meanwhile, the liquid storage volatile gas mentioned in this application is VOCs.

[0030] Please continue reading. Figure 1 As shown, this embodiment of the automatic drainage device for preventing overflow of internal floating roof tanks further includes two drainage tank floats 6 on both sides below the drainage tank grid 2, a float support plate 9 below the drainage tank floats 6, and a first float bracket 10 and a second float bracket 11 below the float support plate. The drainage tank floats 6 are used to rise with the water accumulation, and open the drainage channel when the drainage tank floats 6 rise to a height higher than the second float bracket 11 to prevent water overflow. The drainage tank floats 6 are also used to seal the drainage tank together with the first float bracket 10, the second float bracket 11, and the float support plate 9 when the water height is lower than the first float bracket 10 to prevent liquid evaporation. The first float bracket 10, the second float bracket 11, and the float support plate 9 are also used to support and fix the drainage tank floats 6 when the water height is lower than the float bracket 10.

[0031] Please continue reading. Figure 1 As shown, this embodiment of the automatic drainage device for preventing overflow of internal floating roof tanks also includes a side plate mesh 7 on one side of the drainage tank float 6, and a side plate mesh bolt 8 at one end of the side plate mesh 7. The side plate mesh bolt 8 is used to fix the side plate mesh 7. The side plate mesh 7 is used to remove the drainage tank float 6 from the side plate mesh 7 for maintenance and replacement when the drainage tank 1 is being inspected.

[0032] Specifically, in this embodiment, the side plate mesh bolts are M8 bolts, and there are 20 of them. The drainage tank float consists of a cylindrical float and two float caps.

[0033] Specifically, this application does not impose a specific limit on the number of bolts on the side plate mesh. Those skilled in the art can set the number freely, as long as it meets the requirements for fixing the side plate mesh. Those skilled in the art can also use clips to fix the side plate mesh.

[0034] Please continue reading. Figure 1 As shown, the automatic drainage device for preventing overflow of internal floating roof tanks in this embodiment also includes a partition plate 12 at the end of the second float support 11 away from the first float support 10. The partition plate 12 is used to allow the accumulated water to flow out of the drainage box 1 from the top of the partition plate 12 when the water level is higher than the height of the partition plate 12, thereby realizing automatic drainage.

[0035] Specifically, the drainage channel described in this application refers to a channel through which accumulated water flows from between the two first float supports, through the second float support, and then towards the partition plate.

[0036] Specifically, this application seals the drainage tank with a drainage tank flange, flange gasket, and drainage tank flange handle, ensuring that water enters through only the drainage tank mesh, thus achieving balance in the drainage tank and preventing uneven water distribution within the drainage tank that could lead to float imbalance. Simultaneously, the drainage tank can be disassembled using the drainage tank flange, flange gasket, and drainage tank flange handle, facilitating the installation of the drainage tank float via the side plate mesh, and enabling maintenance and installation of the internal components of the drainage tank.

[0037] Please see Figure 4 As shown, it is the side panel mesh of this embodiment, including: A welding hinge 71 is provided below the side plate mesh 7. The welding hinge 71 is used to connect the side plate mesh 7 to the drainage box 1 so as to realize the opening and closing movement of the side plate mesh 7. The side panel 7 has a mesh opening structure.

[0038] Specifically, this application uses welded hinges to connect the side panel mesh to the drainage tank, while those skilled in the art can also use metal hinges to connect the side panel mesh to the drainage tank.

[0039] It is worth noting that the automatic overflow prevention drainage device for internal floating roof tanks described in this embodiment is fixedly connected to the internal floating roof of the tank by bolts.

[0040] Specifically, the automatic overflow prevention drainage device for internal floating roof tanks provided in this embodiment uses a drainage tank flange, a drainage tank flange handle, and a flange sealing gasket to fix the drainage tank mesh to the drainage tank, thereby preventing solid objects from falling into the tank. By setting a float bracket and a float support plate at the bottom inside the drainage tank, the minimum support height for the drainage tank float is provided, and the drainage tank float is fixed, so as to prevent the movement of the drainage tank float inside the drainage tank from causing imbalance inside the drainage tank, which in turn leads to the floating roof deflection, jamming, and sinking. Furthermore, when using the aforementioned automatic overflow prevention drainage device for internal floating roof tanks, water of the same height as the float plate is pre-filled into the drainage tank as a liquid seal to prevent volatile gases of the stored liquid from overflowing the drainage tank, thereby reducing liquid evaporation. Furthermore, when the accumulated water flows into the drainage tank through the drainage tank mesh, the drainage tank float rises with the water level, opening the drainage channel and allowing the accumulated water to flow into the area of ​​the side plate mesh away from the drainage tank float. When the water level is higher than the partition plate, the water flows out of the drainage tank from the top of the partition plate, allowing the accumulated water to flow into the storage liquid, thus achieving automatic drainage.

[0041] Specifically, the automatic drainage device for preventing overflow of internal floating roof tanks described in this application can drain water accumulated in the upper area of ​​the internal floating roof, prevent volatile gases of the stored liquid from overflowing through the drainage function, and prevent the internal floating roof from becoming unbalanced during the drainage process.

[0042] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. An automatic overflow prevention drainage device for internal floating roof tanks, characterized in that, include: A drainage tank has an opening at its top edge. The drainage tank is fixedly connected to a drainage tank mesh through the opening. The drainage tank mesh is used to prevent solid objects from entering the drainage tank from the drainage tank mesh, and to ensure that water can only enter the drainage tank through the drainage tank mesh. A drainage tank float is located on both sides below the drainage tank grid. A float support plate is provided below the drainage tank float, and a first float bracket and a second float bracket are provided below the float support plate. The drainage tank float is used to rise with the water accumulation, and to open the drainage channel when the drainage tank float rises to a height higher than the second float bracket to prevent water overflow. The drainage tank float is also used to seal the drainage tank together with the first float bracket, the second float bracket, and the float support plate when the water level is lower than the first float bracket to prevent the stored liquid from evaporating.

2. The automatic overflow prevention drainage device for internal floating roof tanks according to claim 1, characterized in that, The drainage box has a mesh structure.

3. The automatic overflow prevention drainage device for internal floating roof tanks according to claim 1, characterized in that, Also includes: A drain tank flange is provided at both ends of the upper part of the drain tank. A flange sealing gasket is provided below the drain tank flange, and a drain tank flange handle is provided above the drain tank flange. The drain tank flange, flange sealing gasket and drain tank flange handle are used to combine to achieve sealing and disassembly of the drain tank, so that when sealed, the water accumulated in the drain tank enters the drain tank from the drain tank mesh.

4. The automatic overflow prevention drainage device for internal floating roof tanks according to claim 3, characterized in that, The flange sealing gasket is made of nitrile rubber.

5. The automatic overflow prevention drainage device for internal floating roof tanks according to claim 1, characterized in that, The drainage tank float is provided with a side plate mesh on one side, and a side plate mesh bolt is provided at one end of the side plate mesh. The side plate mesh bolt is used to fix the side plate mesh. The side plate mesh is used to remove the drainage tank float from the side plate mesh for maintenance and replacement when the drainage tank is inspected.

6. The automatic overflow prevention drainage device for internal floating roof tanks according to claim 5, characterized in that, The side plate mesh bolts are M8 bolts, and there are 20 of them.

7. The automatic overflow prevention drainage device for internal floating roof tanks according to claim 6, characterized in that, The second pontoon support is provided with a partition plate at the end away from the first pontoon support. The partition plate is used to allow water to flow out of the drainage box from the top of the partition plate when the water level is higher than the height of the partition plate, thereby preventing water from overflowing from the mesh of the drainage box.

8. The automatic overflow prevention drainage device for internal floating roof tanks according to claim 1, characterized in that, A hinge is provided below the side panel mesh, which is used to connect the side panel mesh to the drainage tank and to enable the side panel mesh to open and close.

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