Separated full-liquid-receiving box type floating disc of inner floating roof storage tank

Abstract

The utility model discloses an inner floating roof storage tank separating type full liquid receiving box type floating disc which comprises a floating disc support and a floating disc body, the floating disc support comprises a plurality of supporting columns and a plurality of cross beams, the lower end of each supporting column is fixedly installed at the bottom of a storage tank, and each cross beam is connected between the upper ends of at least two supporting columns in a crossing mode. The floating disc body comprises a floating box, a framework, an outer ring beam and a sealing piece, the floating box is installed on the framework, the outer ring beam is annular and installed on the outer edge of the framework, the inner edge of the sealing piece is connected with the outer ring beam, and the outer edge of the sealing piece abuts against the inner side wall of the storage tank; when the liquid level of the liquid in the storage tank is higher than the highest point of the floating disc support, the floating disc body floats on the liquid level of the liquid in the storage tank, and when the liquid level of the liquid in the storage tank is lower than the highest point of the floating disc support, the floating disc body is supported by the floating disc support. According to the floating disc, the design that the floating disc support and the floating disc body are separated is adopted, the tank bottom plate is protected against abrasion, and in the feeding process of the storage tank, energy consumption of material conveying is reduced, and the situation of stored liquid leakage is improved.

Description

Technical Field

[0001] This utility model relates to the field of petrochemical storage technology, and in particular to a fully liquid-contact floating roof for internal floating roof tanks. Background Technology

[0002] A full-contact tank floating roof is a sealed device that covers the liquid surface and rises and falls with the liquid level in the storage tank using buoyancy. It mainly consists of a floating roof support and a floating roof body. The floating roof support is fixedly installed on the lower side of the floating roof body. When the liquid level in the storage tank is too low or the tank is empty, the floating roof support can descend onto the bottom plate of the storage tank, facilitating tank cleaning operations in the area between the bottom plate and the floating roof body when the tank is empty.

[0003] Current fully submersible tank-type floating roofs suffer from wear and tear on the tank bottom plate due to long-term impacts and collisions with the floating roof support, affecting storage sealing performance. In addition, the overall weight of the floating roof is relatively large, which in turn results in greater pressure exerted by the floating roof on the stored liquid. This leads to higher energy consumption for material transportation during the feeding process of the storage tank, and also requires high sealing performance between the floating roof and the storage tank, otherwise leakage of the stored liquid is likely to occur. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a fully liquid-contact floating roof for internal floating roof storage tanks, which can protect the tank bottom plate from wear, reduce energy consumption in material transportation, and improve the situation of liquid leakage.

[0005] According to an embodiment of this utility model, the internal floating roof tank detachable full-contact liquid tank type floating roof has a vertical direction and a horizontal direction, including: a floating roof support, including multiple pillars extending in the vertical direction and multiple crossbeams extending in the horizontal direction, the lower end of each pillar is fixedly installed at the bottom of the tank, the multiple pillars are arranged at intervals, and each crossbeam spans and connects the upper ends of at least two pillars; a floating roof body, including a pontoon, a frame, an outer ring beam and a seal, the pontoon is installed on the frame, the outer ring beam is annular and installed on the outer edge of the frame, the inner edge of the seal is connected to the outer ring beam, and the outer edge of the seal abuts against the inner sidewall of the tank; when the liquid level in the tank is higher than the highest point of the floating roof support, the floating roof body floats on the liquid level in the tank, and when the liquid level in the tank is lower than the highest point of the floating roof support, the floating roof body is supported by the floating roof support.

[0006] It has at least the following beneficial effects: This floating roof adopts a design where the floating roof support and the floating roof body are separate. The floating roof support is the fixed part, with its pillars fixedly installed at the bottom of the storage tank. At least two pillars are then connected across the top by a crossbeam. The floating roof body is the movable part, with the pontoon mounted on the frame and the outer ring beam installed on the outer edge of the frame. The outer ring beam then abuts against the inner wall of the storage tank through a seal. The floating roof body can rise and fall with the liquid level in the storage tank. When the liquid level is lower than the highest point of the floating roof support, the floating roof body is supported by the floating roof support, thereby protecting the tank bottom plate from wear. Moreover, only the floating roof body rises and falls with the liquid level; the floating roof support does not exert pressure on the stored liquid. During the feeding process, the energy consumption of material transportation is reduced. The lighter movable part means that the sealing performance requirements between the seal and the storage tank are reduced, thereby improving the situation of liquid leakage.

[0007] According to some embodiments of the present invention, each of the crossbeams is transversely connected between the upper ends of the two pillars.

[0008] According to some embodiments of the present invention, the upper end of the support column is provided with a transition unit. The transition unit includes an adapter, a vertical transition component and a plurality of horizontal transition pieces disposed on the adapter. The vertical transition component is fastened to the support column, and the horizontal transition pieces extend in the horizontal direction and are connected to the crossbeam.

[0009] According to some embodiments of the present invention, the adapter is adjustable in height relative to the support column.

[0010] According to some embodiments of this utility model, the vertical adapter assembly includes an adjusting screw, an adjusting nut, and a locking nut. The upper end of the adjusting screw is fixedly connected to the adapter, and the lower end is inserted into the support column. The adjusting screw is provided with a first external thread, and the adjusting nut is provided with a first internal thread and is threadedly connected to the adjusting screw. The adjusting nut can abut downward against the upper end face of the support column. The upper outer ring of the support column is provided with a second external thread. The locking nut is sleeved on the adjusting screw and is provided with a second internal thread. The locking nut is threadedly connected to the upper end of the support column to lock the adjusting nut to the upper end face of the support column.

[0011] According to some embodiments of the present invention, the horizontal adapter is a sleeve, one end of which is fixedly connected to the adapter, and the other end is for the crossbeam to be inserted. The sleeve and the crossbeam are fastened together by fasteners through the side wall of the sleeve and the radial penetration of the crossbeam.

[0012] According to some embodiments of the present invention, the adapter is provided with a buffer pad.

[0013] According to some embodiments of the present invention, the frame includes multiple main beams and multiple auxiliary beams. The multiple main beams are parallel to each other and both ends of each main beam are connected to the outer ring beam. The auxiliary beams span between at least two of the main beams or between the main beams and the outer ring beam.

[0014] According to some embodiments of this utility model, the floating plate body is provided with a vent valve.

[0015] According to some embodiments of this utility model, it also includes a lifting guide rod, the upper end of which is connected to the top of the storage tank and the lower end of which is connected to the floating plate support or the bottom of the storage tank, and the floating plate body is slidably connected to the lifting guide rod.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model when the liquid level in the storage tank is higher than the highest point of the floating roof support;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model when the liquid level in the storage tank is lower than the highest point of the floating roof support;

[0020] Figure 3 This is a bottom view of the floating platform body in an embodiment of the present invention;

[0021] Figure 4 This is a top view of the floating table support in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram showing the fit between the adapter and the support column in an embodiment of this utility model;

[0023] Figure 6 This is a schematic diagram showing the fit between the adapter and the crossbeam in an embodiment of this utility model.

[0024] Reference numerals in the attached diagram: 1. Tank bottom plate; 11. Floating roof support; 2. Support column; 21. Crossbeam; 22. Adapter unit; 23. Adapter joint; 231. Vertical adapter assembly; 232. Adjusting screw; 2321. Adjusting nut; 2322. Locking nut; 2323. Horizontal adapter; 233. Floating roof body; 31. Floating box; 32. Frame; 321. Main beam; 322. Auxiliary beam; 33. Outer ring beam; 34. Vent valve; 4. Lifting guide rod. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, inside, outside, radial, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Reference Figures 1 to 6 This utility model discloses a separate, fully liquid-contact floating roof for an internal floating roof storage tank, which has vertical and horizontal directions and includes a floating roof support 2 and a floating roof body 3.

[0030] Among them, reference Figure 1 and Figure 4 The floating support 2 includes multiple pillars 21 and multiple crossbeams 22. The pillars 21 extend in the vertical direction, and the lower end of each pillar 21 is fixedly installed on the bottom of the storage tank 1, specifically on the tank bottom plate 11. The multiple pillars 21 are arranged at intervals, and the crossbeams 22 extend in the horizontal direction. Each crossbeam 22 spans and connects the upper ends of at least two pillars 21.

[0031] It is understandable that the beam 22 can be connected across the upper ends of two supports 21, or it can be connected across the upper ends of all supports 21 in the same column.

[0032] Reference Figure 1 and Figure 3 The floating body 3 includes a pontoon 31, a frame 32, an outer ring beam 33, and a seal. The frame 32 serves as a support and connection. The pontoon 31 is installed on the frame 32, and the outer ring beam 33 is annular and installed on the outer edge of the frame 32.

[0033] The inner edge of the seal is connected to the outer ring beam 33, and the outer edge of the seal abuts against the inner wall of the storage tank 1. It can be understood that the seal can be a sealing ring, a sealing airbag, or other sealing structure, as long as it can achieve the function of sealing between the outer ring beam 33 and the inner wall of the storage tank 1 and allow the two to slide relative to each other, it can meet the basic requirements.

[0034] This floating roof adopts a separate design of floating roof support 2 and floating roof body 3. Floating roof support 2 is the fixed part, and floating roof body 3 is the movable part.

[0035] Reference Figure 1 When the liquid level in the storage tank 1 is higher than the highest point of the floating support 2, the floating body 3 floats on the liquid level in the storage tank 1. The floating body 3 can rise and fall with the liquid level in the storage tank 1, and only the floating body 3 rises and falls with the liquid level. The floating support 2 will not apply pressure to the liquid. During the feeding process of the storage tank 1, the energy consumption of material transportation is reduced. The lighter moving parts mean that the sealing performance requirements between the seals and the storage tank 1 are reduced, thereby improving the situation of liquid leakage.

[0036] Reference Figure 2 When the liquid level in the storage tank 1 is lower than the highest point of the floating plate support 2, the floating plate body 3 is supported by the floating plate support 2, thereby protecting the tank bottom plate 11 from wear.

[0037] In some embodiments of this utility model, reference is made to Figures 4 to 6 Each crossbeam 22 spans between the upper ends of the two pillars 21.

[0038] To achieve the connection between the perpendicular beam 22 and the support column 21, in some embodiments, a transition unit 23 is provided at the upper end of the support column 21, as shown in the figure. Figure 5 and Figure 6 The adapter unit 23 includes an adapter 231, a vertical adapter assembly 232 disposed on the adapter 231, and a plurality of horizontal adapters 233. The vertical adapter assembly 232 is fastened to the support column 21, and the horizontal adapters 233 extend in the horizontal direction and are connected to the crossbeam 22, thereby realizing the vertical connection between the crossbeam 22 and the support column 21.

[0039] Considering that the tank bottom plate 11 may be uneven, the adapter 231 can be designed to be height-adjustable relative to the support column 21. This can compensate for the height difference of the corresponding tank bottom plate 11 area, so that the height of all adapters 231 is consistent, thus ensuring that the floating plate body 3 can be horizontally supported by the floating plate support 2.

[0040] In addition, the height of the highest point of the floating support 2 can be adjusted according to actual needs.

[0041] In some embodiments of this utility model, reference is made to Figure 5 The vertical adapter assembly 232 includes an adjusting screw 2321, an adjusting nut 2322, and a locking nut 2323. The upper end of the adjusting screw 2321 is fixedly connected to the adapter 231, and the lower end is inserted into the support column 21 and can extend and retract relative to the support column 21 before tightening. The adjusting screw 2321 is provided with a first external thread, and the adjusting nut 2322 is provided with a first internal thread. The first external thread and the first internal thread cooperate with each other. The adjusting nut 2322 is threadedly connected to the adjusting screw 2321 and can abut against the upper end face of the support column 21. The upper outer ring of the support column 21 is provided with a second external thread. The locking nut 2323 is sleeved on the adjusting screw 2321 and is provided with a second internal thread. The second external thread and the second internal thread cooperate with each other.

[0042] During the process of adjusting the height of the adapter 231, the locking nut 2323 is first moved upward away from the support column 21. By turning the adjusting nut 2322, the adjusting screw 2321 can be raised or lowered to adjust the height of the adapter 231. Then, the locking nut 2323 is connected to the upper end of the support column 21 through the thread to lock the adjusting nut 2322 to the upper end face of the support column 21, thereby fixing the position of the adapter 231 relative to the support column 21.

[0043] Reference Figure 5 and Figure 6 The horizontal adapter 233 can be a sleeve. One end of the sleeve is fixedly connected to the adapter 231, and the other end is for the crossbeam 22 to be inserted. Both the sleeve and the crossbeam 22 are provided with connecting through holes in the radial direction. The sleeve and the crossbeam 22 are fastened together by fasteners through the side wall of the sleeve and the radial through holes of the crossbeam 22.

[0044] In some embodiments, the adapter 231 is provided with a buffer pad, which is installed at the highest point of the floating table support 2. When the floating table body 3 falls to the floating table support 2, the buffer pad can delay the impact of the floating table body 3 and protect the floating table body 3 and the floating table support 2.

[0045] The cushioning pad can be made of rubber or spring.

[0046] In some embodiments, refer to Figure 3 The frame 32 includes multiple main beams 321 and multiple auxiliary beams 322. The main beams 321 are parallel to each other, and both ends of each main beam 321 are connected to the outer ring beam 33. The auxiliary beams 322 span and connect at least two main beams 321, or between the main beams 321 and the outer ring beam 33, thereby improving the structural strength and rigidity of the floating body 3.

[0047] A cover plate can also be installed on one side of the frame 32 to further facilitate the fixing of the pontoon 31.

[0048] In some embodiments, refer to Figure 3 The floating body 3 is equipped with a vent valve 34 to relieve pressure in the sealed space on the lower side of the floating body 3.

[0049] To prevent the floating platform 3 from rotating around itself, this floating platform also includes a lifting guide rod 4, as shown in the reference. Figure 1 and Figure 2 The upper end of the lifting guide rod 4 is connected to the top of the storage tank 1, and the lower end is connected to the floating plate support 2 or the bottom of the storage tank 1. The floating plate body 3 slides up and down connected to the lifting guide rod 4 to prevent the floating plate body 3 from rotating around itself and to provide guidance for the lifting of the floating plate body 3.

[0050] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. An internal floating roof tank with a detachable, fully liquid-contact type floating roof, having vertical and horizontal orientations, characterized in that... include: The floating roof support includes multiple vertically extending columns and multiple horizontally extending beams. The lower end of each column is fixedly installed at the bottom of the storage tank. The multiple columns are arranged at intervals, and each beam spans and connects the upper ends of at least two columns. The floating roof body includes a pontoon, a frame, an outer ring beam, and a seal. The pontoon is installed on the frame. The outer ring beam is annular and installed on the outer edge of the frame. The inner edge of the seal is connected to the outer ring beam, and the outer edge of the seal abuts against the inner wall of the storage tank. When the liquid level in the storage tank is higher than the highest point of the floating roof support, the floating roof floats on the liquid level in the storage tank; when the liquid level in the storage tank is lower than the highest point of the floating roof support, the floating roof is supported by the floating roof support.

2. The internal floating roof tank detachable fully contact liquid tank type floating roof according to claim 1, characterized in that: Each of the beams spans between the upper ends of the two pillars.

3. The internal floating roof tank detachable fully contact liquid tank type floating roof according to claim 2, characterized in that: The upper end of the support column is provided with a transition unit, which includes an adapter, a vertical transition component and a plurality of horizontal transition pieces disposed on the adapter. The vertical transition component is fastened to the support column, and the horizontal transition pieces extend in the horizontal direction and are connected to the crossbeam.

4. The internal floating roof tank detachable fully contact liquid tank type floating roof according to claim 3, characterized in that: The adapter is adjustable in height relative to the support column.

5. The internal floating roof tank detachable fully contact liquid tank type floating roof according to claim 4, characterized in that: The vertical adapter assembly includes an adjusting screw, an adjusting nut, and a locking nut. The upper end of the adjusting screw is fixedly connected to the adapter, and the lower end is inserted into the support column. The adjusting screw has a first external thread, and the adjusting nut has a first internal thread and is threadedly connected to the adjusting screw. The adjusting nut can abut against the upper end face of the support column. The upper outer ring of the support column has a second external thread. The locking nut is sleeved on the adjusting screw and has a second internal thread. The locking nut is threadedly connected to the upper end of the support column to lock the adjusting nut to the upper end face of the support column.

6. The internal floating roof tank detachable fully contact liquid tank type floating roof according to claim 3, characterized in that: The horizontal adapter is a sleeve, one end of which is fixedly connected to the adapter, and the other end is for the crossbeam to be inserted. The sleeve and the crossbeam are fastened together by fasteners that penetrate the side wall of the sleeve and the crossbeam radially.

7. The internal floating roof tank detachable fully contact liquid tank type floating roof according to claim 3, characterized in that: The adapter is equipped with a buffer pad.

8. The internal floating roof tank detachable fully contact liquid tank type floating roof according to claim 1, characterized in that: The frame includes multiple main beams and multiple auxiliary beams. The main beams are parallel to each other and both ends of each main beam are connected to the outer ring beam. The auxiliary beams span between at least two main beams or between a main beam and the outer ring beam.

9. The internal floating roof tank detachable fully contact liquid tank type floating roof according to claim 1 or 8, characterized in that: The floating platform is equipped with a vent valve.

10. The internal floating roof tank detachable fully contact liquid tank type floating roof according to claim 1, characterized in that: It also includes a lifting guide rod, the upper end of which is connected to the top of the storage tank and the lower end of which is connected to the floating roof support or the bottom of the storage tank. The floating roof body is slidably connected to the lifting guide rod.

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