Floating disc structure of combined type inner floating roof storage tank

Abstract

The utility model discloses a combined type inner floating roof storage tank floating disc structure which comprises an installation disc, an annular groove is formed in the outer side face of the installation disc, a sealing ring is connected in the annular groove in a sliding mode, a tongue-shaped belt is arranged between the sealing ring and the annular groove in a clamped mode, and a floating disc assembly is arranged on the inner side face of the installation disc. A plurality of rotating rings are annularly arrayed on the upper side face of the mounting disc and rotationally connected with the upper side face of the mounting disc, lifting bolts are in threaded connection with the inner side faces of the rotating rings, the lower ends of the lifting bolts penetrate through the mounting disc to be connected with the upper side face of the sealing ring, and a driving disc is rotationally connected with the upper side face of the mounting disc. Meshed transmission teeth are arranged on the annular side faces of the driving disc and the rotating ring, a plurality of driving columns are annularly arrayed on the inner side face of the driving disc with the circle center of the driving disc as the center, the upper side face of the floating disc assembly is rotationally connected with a rotating shaft, and the ends, away from the driving disc, of the driving columns are connected with the rotating shaft; the utility model has the advantage that the tongue-shaped belt can be quickly replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of compound internal floating roof storage tanks, and relates to a floating roof structure of a compound internal floating roof storage tank. Background Technique

[0002] The floating roof of a compound internal floating roof storage tank is a floating roof cover used inside a storage tank, mainly applied to reduce the evaporation loss of the liquid inside the storage tank and control the volatilization of the gas inside the storage tank. It combines the advantages of an internal floating roof and a fixed roof and is usually made of lightweight materials such as aluminum, fiberglass, or stainless steel.

[0003] The Chinese utility model patent with the authorization announcement number CN214877178U discloses a floating roof structure of a compound internal floating roof storage tank, including a cylinder. A groove is opened inside the cylinder, a threaded rod is arranged inside the groove, the top of the threaded rod penetrates through the outer wall of the cylinder, and the threaded rod is connected to the cylinder through a thread. A ring is arranged inside the groove, the bottom end of the threaded rod is rotatably connected to the top of the ring, and a clamping rod is fixedly connected to the bottom end of the ring; this technical solution drives the threaded rod to rotate by rotating the anti-slip block, and then drives the ring to move up and down in the groove, thereby realizing the fixation and disassembly of the tongue-shaped tape, improving the convenience of the staff when replacing the tongue-shaped tape. However, this technical solution requires multiple threaded rods to rotate simultaneously to control the lifting of the ring in the groove, and it may be inconvenient for the staff to rotate multiple threaded rods. Summary of the Utility Model

[0004] In view of the above problems, the utility model proposes a floating roof structure of a compound internal floating roof storage tank, which well solves the problems in the prior art.

[0005] To achieve the above object, the technical solution adopted by the utility model is as follows: A floating roof structure of a compound internal floating roof storage tank includes an installation disk. An annular groove is opened on the outer side surface of the installation disk, a sealing ring is slidably connected up and down in the annular groove, a tongue-shaped belt is clamped between the sealing ring and the annular groove, a floating roof assembly is arranged on the inner side surface of the installation disk, a plurality of rotating rings are arranged in a circular array on the upper side surface of the installation disk with the center of the installation disk as the center, the rotating rings are rotatably connected to the upper side surface of the installation disk, a lifting bolt is threadedly connected to the inner side surface of the rotating ring, the lower end of the lifting bolt passes through the installation disk and is connected to the upper side surface of the sealing ring, a driving disk is rotatably connected to the upper side surface of the installation disk, meshing transmission teeth are arranged on both the driving disk and the annular side surface of the rotating ring, a plurality of driving columns are arranged in a circular array on the inner side surface of the driving disk with the center of the driving disk as the center, and a rotating shaft is rotatably connected to the upper side surface of the floating roof assembly. One end of the driving column away from the driving disk is connected to the rotating shaft.

[0006] Further, the floating disk assembly includes a plurality of connecting columns arranged in an annular array on the inner side surface of the mounting disk with the center of the mounting disk as the center, and a central block arranged at one end of the plurality of connecting columns away from the mounting disk. The rotating shaft is rotatably connected to the upper side surface of the central block, and the rotating shaft and the central block are coaxially arranged. A fixing column is arranged between two adjacent connecting columns.

[0007] Further, a turntable is arranged on the upper side surface of the rotating shaft.

[0008] Further, a plurality of limiting columns are arranged in an annular array on the lower side surface of the sealing ring with the center of the sealing ring as the center. A plurality of through holes are formed through the tongue-shaped belt. A plurality of limiting grooves are formed on the lower side surface of the annular groove. The number, position and size of the through holes and the limiting grooves are the same as those of the limiting columns, and the lower end of the limiting column can pass through the through hole and be inserted into the limiting groove.

[0009] Further, a plurality of supporting legs are arranged in an annular array on the lower side surface of the mounting disk with the center of the mounting disk as the center.

[0010] Further, a support plate is arranged on the lower side surface of the supporting leg.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model realizes the synchronous rotation of a plurality of lifting bolts through the rotating ring, the driving disk, the rotating shaft and the turntable, improves the convenience of the staff in controlling the lifting of the sealing ring, and improves the convenience in replacing the tongue-shaped belt. The further limitation of the tongue-shaped belt is realized through the limiting column, the through hole and the limiting groove, and the reliability of the tongue-shaped belt fixed in the annular groove is improved. The support of the floating disk mechanism is realized through the supporting leg and the support plate, preventing the floating disk mechanism from contacting the bottom of the storage tank, and improving the convenience of the staff in taking out the floating disk mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the utility model;

[0014] Figure 2 is the utility model Figure 1 partial enlarged view of part A;

[0015] Figure 3 is the utility model Figure 1 top view.

[0016] In the figure, 1, mounting disk; 2, sealing ring; 3, tongue-shaped belt; 4, lifting bolt; 5, rotating ring; 6, driving disk; 7, driving column; 8, rotating shaft; 9, turntable; 10, central block; 11, connecting column; 12, fixing column; 13, supporting leg; 14, support plate; 101, annular groove; 102, limiting groove; 201, limiting column. Detailed implementation mode

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0018] As Figure 1 、 Figure 2 、 Figure 3 shown, a floating roof structure of a composite internal floating roof storage tank includes an installation disk 1. An annular groove 101 is formed on the outer side surface of the installation disk 1. A sealing ring 2 is slidably connected up and down in the annular groove 101. A tongue-shaped belt 3 is clamped between the sealing ring 2 and the annular groove 101. A floating disk assembly is arranged on the inner side surface of the installation disk 1. A plurality of rotating rings 5 are arranged in an annular array on the upper side surface of the installation disk 1 with the center of the installation disk 1 as the center. The rotating rings 5 are rotatably connected to the upper side surface of the installation disk 1 through bearings. A lifting bolt 4 is threadedly connected to the inner side surface of the rotating ring 5. The lower end of the lifting bolt 4 passes through the installation disk 1 and is fixedly connected to the upper side surface of the sealing ring 2. A driving disk 6 is rotatably connected to the upper side surface of the installation disk 1 through a bearing. Meshing transmission teeth are integrally formed on the annular side surfaces of the driving disk 6 and the rotating ring 5. A plurality of driving columns 7 are welded on the inner side surface of the driving disk 6 in an annular array with the center of the driving disk 6 as the center. A rotating shaft 8 is rotatably connected to the upper side surface of the floating disk assembly through a bearing. One end of the driving column 7 away from the driving disk 6 is connected to the rotating shaft 8.

[0019] During use, the staff places the floating roof structure inside the storage tank, so that the tongue-shaped belt 3 contacts the side surface of the storage tank to form a sealing structure, reducing the contact area between the liquid inside the storage tank and the air, reducing the evaporation loss of the liquid inside the storage tank and controlling the volatilization of the gas inside the storage tank;

[0020] When it is necessary to replace the tongue-shaped belt 3, the staff rotates the rotating shaft 8 to drive the driving disk 6 to rotate. Under the action of the transmission teeth on the outer side surfaces of the driving disk 6 and the rotating ring 5, the rotating ring 5 and the driving disk 6 rotate synchronously. When the rotating ring 5 rotates, due to the effect of the internal thread, the lifting bolt 4 moves upward along the rotating ring 5 and drives the sealing ring 2 to move upward, so that the sealing ring 2 no longer contacts the tongue-shaped belt 3. At this time, the tongue-shaped belt 3 is no longer clamped between the sealing ring 2 and the annular groove 101, and the staff can easily take out the tongue-shaped belt 3 and place a new tongue-shaped belt 3 in the annular groove 101. Then the staff rotates the rotating shaft 8 in the reverse direction to make the sealing ring 2 move downward, clamping the tongue-shaped belt 3 between the sealing ring 2 and the annular groove 101 to prevent the tongue-shaped belt 3 from detaching from the annular groove 101, ensuring the reliability of the floating roof structure during use and improving the convenience of the staff when replacing the tongue-shaped belt 3.

[0021] In this embodiment, the floating plate assembly includes a plurality of connecting columns 11 welded to the inner side of the mounting plate 1 in a circular array with the center of the mounting plate 1 as the center, and a center block 10 welded to the end of the plurality of connecting columns 11 away from the mounting plate 1. The rotating shaft 8 is rotatably connected to the upper side of the center block 10 through a bearing, and the rotating shaft 8 and the center block 10 are coaxially arranged. A fixed column 12 is welded between two adjacent connecting columns 11. When in use, the connecting columns 11, the center block 10 and the fixed column 12 are all made of lightweight materials, so that the floating plate assembly can float on the liquid inside the storage tank, reduce the contact area between the liquid and the air, thereby reducing the volatilization of the liquid in the storage tank and reducing waste.

[0022] In this embodiment, a turntable 9 is fixed on the upper side of the rotating shaft 8 . When in use, a worker can grab the turntable 9 to rotate the rotating shaft 8 , thereby improving the convenience of the worker when rotating the rotating shaft 8 .

[0023] In this embodiment, the lower side of the sealing ring 2 has a plurality of limit posts 201 in a circular array with the center of the sealing ring 2 as the center, and a plurality of through holes are opened on the tongue-shaped band 3, and a plurality of limit grooves 102 are opened on the lower side of the annular groove 101. The number, position and size of the through holes and the limit grooves 102 are consistent with those of the limit posts 201, and the lower end of the limit post 201 can pass through the through hole and be inserted in the limit groove 102. When in use, the limit post 201 passes through the through hole and is inserted in the limit groove 102, which improves the reliability of the tongue-shaped band 3 clamped in the sealing ring 2 and the annular groove 101, and further prevents the tongue-shaped band 3 from escaping from the annular groove 101.

[0024] In this embodiment, a plurality of supporting legs 13 are provided on the lower side of the mounting plate 1 in a circular array with the center of the mounting plate 1 as the center through bolts. When the liquid in the storage tank is exhausted, the supporting legs 13 can contact the lower side of the interior of the storage tank, preventing the mounting plate 1 from directly fitting against the lower side of the interior of the storage tank, making it inconvenient for the staff to remove the mounting plate 1, thereby improving the convenience of the staff in removing the floating plate mechanism.

[0025] In this embodiment, a support plate 14 is welded to the lower side of the support leg 13. When in use, the support plate 14 improves the stability of the support leg 13 and further prevents the floating plate mechanism from tipping over.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A floating roof structure for a composite internal floating roof storage tank, comprising an installation disk. An annular groove is formed on the outer side surface of the installation disk. A sealing ring is slidably connected up and down in the annular groove. A tongue-shaped belt is clamped between the sealing ring and the annular groove. A floating roof assembly is arranged on the inner side surface of the installation disk, and it is characterized in that: On the upper side of the mounting disc, a plurality of rotating rings are arranged in a circular array centered on the center of the mounting disc. The rotating rings are rotatably connected to the upper side of the mounting disc. A lifting bolt is threadedly connected to the inner side of the rotating ring. The lower end of the lifting bolt passes through the mounting disc and is connected to the upper side of the sealing ring. A driving disc is rotatably connected to the upper side of the mounting disc. Transmission teeth that mesh with each other are provided on both the driving disc and the annular side of the rotating ring. A plurality of driving columns are arranged in a circular array centered on the center of the driving disc on the inner side of the driving disc. A rotating shaft is rotatably connected to the upper side of the floating disc assembly. One end of the driving column away from the driving disc is connected to the rotating shaft.

2. The floating roof structure of a composite internal floating roof storage tank according to claim 1, characterized in that: The floating disc assembly includes a plurality of connecting columns arranged in a circular array centered on the center of the mounting disc on the inner side of the mounting disc and a central block provided at one end of the plurality of connecting columns away from the mounting disc. The rotating shaft is rotatably connected to the upper side of the central block and is coaxially arranged with the central block. Fixed columns are provided between adjacent two of the connecting columns.

3. The floating roof structure of a composite internal floating roof storage tank according to claim 1, characterized in that: A turntable is provided on the upper side of the rotating shaft.

4. A floating roof structure for a composite internal floating roof storage tank according to claim 1, characterized in that: On the lower side of the sealing ring, a plurality of limiting columns are arranged in a circular array centered on the center of the sealing ring. A plurality of through holes are formed through the tongue-shaped belt. A plurality of limiting grooves are formed on the lower side of the annular groove. The number, position and size of the through holes and the limiting grooves are the same as those of the limiting columns, and the lower end of the limiting column can pass through the through hole and be inserted into the limiting groove.

5. A floating roof structure for a composite internal floating roof storage tank according to claim 1, characterized in that: On the lower side of the mounting disc, a plurality of supporting legs are arranged in a circular array centered on the center of the mounting disc.

6. The floating roof structure of a composite internal floating roof storage tank according to claim 5, characterized in that: A supporting plate is provided on the lower side of the supporting leg.

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