CN211077107U - Sealing device for periphery of inner floating disc - Google Patents
Sealing device for periphery of inner floating disc Download PDFInfo
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- CN211077107U CN211077107U CN201921420126.9U CN201921420126U CN211077107U CN 211077107 U CN211077107 U CN 211077107U CN 201921420126 U CN201921420126 U CN 201921420126U CN 211077107 U CN211077107 U CN 211077107U
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- 238000007789 sealing Methods 0.000 title claims abstract description 189
- 238000005192 partition Methods 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 abstract description 16
- 238000002955 isolation Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 239000010935 stainless steel Substances 0.000 description 5
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- 238000010586 diagram Methods 0.000 description 4
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- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- 230000002588 toxic effect Effects 0.000 description 1
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Abstract
The embodiment of the application provides a peripheral sealing device of interior floating plate, installs between interior floating plate and storage tank inner wall, and this sealing device includes: first seal structure, the second seal structure, the atress roof beam and increase the high beam, wherein, the bottom and the interior floating plate of atress roof beam are fixed, the upper end of atress roof beam supports and fixes and increases the high beam, first seal structure and second seal structure are plate structure and are located the outside of atress roof beam and increase the high beam, the side of first seal structure and second seal structure is fixed in the upper end of increasing the high beam, and first seal structure is located under the second seal structure, the side of first seal structure and second seal structure is increased the roof beam and is fixed the back, first seal structure first downwarping then downwardly extending and elasticity compress tightly the contact to the oil tank inner wall, second seal structure downwardly extending and elasticity compress tightly the contact to the oil tank inner wall. The peripheral sealing device of interior floating disc that this application embodiment provided, it is sealed effectual, can avoid oil gas to leak or volatilize well.
Description
Technical Field
The embodiment of the application relates to the field of petrochemical engineering mechanical equipment, in particular to a sealing device for the periphery of an inner floating disc.
Background
With the development of the petroleum industry, the storage tank is used as the core oil storage equipment of an oil depot, and the development trend of large-scale and ultra-large-scale is inevitable. The floating roof tank is one of vertical cylindrical metal tanks, and is very popular in oil depots. The floating roof is a disk-shaped structure made of metal materials, floats on the liquid storage surface and goes up and down along with the liquid storage surface, and is also called an inner floating disk. At present, floating discs are arranged in storage tanks for storing high-volatility fluids such as gasoline, diesel, naphtha and chemicals to reduce volatilization, so that pollution to the surrounding environment and even safety accidents caused by gas volatilization are avoided.
The floating type floating roof tank is divided into an outer floating roof tank and an inner floating roof tank according to whether a fixed roof is arranged above the inner floating disc. The external floating roof tank is a full-open container, and the disk-shaped floating roof is lifted along with the oil level. The inner floating roof tank is a vault tank provided with a floating disc. The inner floating roof tank has fixed roof, so that it can prevent wind, sand, rain, snow and dust from invading effectively, ensure the quality of stored liquid and is especially suitable for storing high grade gasoline, jet fuel and toxic petrochemical product.
The sealing device between the peripheral edge of the floating disc in the oil storage tank and the inner wall of the oil storage tank has one end fixed on the inner floating disc and the other end sliding on the inner wall of the storage tank. The gap between the periphery of the inner floating disc and the inner wall of the oil storage tank can be changed due to the deformation of the storage tank, the shaking of the inner floating disc and the like, and the periphery sealing mainly depends on the self or external elastic force to compensate the gap.
The existing peripheral sealing device is provided with mechanical pressure plate type peripheral sealing, inflatable bag type peripheral sealing, liquid filling bag type peripheral sealing, sponge bag type peripheral sealing, scraper type peripheral sealing and mechanical shoe type peripheral sealing. The mechanical pressure plate type peripheral seal has high requirement on the buoyancy of the inner floating disc periphery, the inflatable bag type, the liquid filled bag type and the sponge bag type peripheral seals are easy to overturn and lose effectiveness in use, the scraper type peripheral seal has insufficient fire resistance, the mechanical shoe type seal realizes an elastic device by a spring or a spring steel plate, and the field installation is complicated. Moreover, if the sealing effect is not good, oil immersion and oil gas leakage volatilization are easily caused, and floating disc sinking or disc collapse occurs.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a peripheral sealing device of floating disc, can improve sealed effect, avoids oil gas to leak or volatilize.
An aspect of the present application provides a peripheral sealing device of interior floating plate, this sealing device installs between interior floating plate and storage tank inner wall, and this sealing device includes: the structure comprises a first sealing structure, a second sealing structure, a stressed beam and an heightening beam, wherein the bottom of the stressed beam is fixed with the inner floating disc, the upper end of the stressed beam supports and fixes the heightening beam, the first sealing structure and the second sealing structure are both of plate-shaped structures and are positioned on the outer sides of the stressed beam and the heightening beam, the side edges of the first sealing structure and the second sealing structure are fixed at the upper end of the heightening beam, the first sealing structure is positioned below the second sealing structure, after the side edges of the first sealing structure and the second sealing structure are fixed by the heightening beam, the first sealing structure bends downwards first and then extends downwards and is in elastic pressing contact with the inner wall of the oil tank, and the second sealing structure extends downwards and is in elastic pressing contact with the inner wall of the oil tank.
Optionally, the first sealing structure comprises a sealing elastic sheet, a sealing large elastic sheet, a sealing middle elastic sheet and a sealing small elastic sheet, wherein the sealing large elastic sheet has elasticity, is located at the outermost side of the first sealing structure, and is in direct elastic compression contact with the inner wall of the oil tank; the middle sealing elastic sheet is arranged on the inner side between any two large sealing elastic sheets; the sealing elastic sheet is arranged on the inner sides of the large sealing elastic sheet and the middle sealing elastic sheet, the small sealing elastic sheet is arranged on the inner side of the sealing elastic sheet, and the small sealing elastic sheet tightly presses the sealing elastic sheet on the inner sides of the large sealing elastic sheet and the middle sealing elastic sheet.
Optionally, the large sealing elastic sheet is bent and extended towards the inner floating disc at the bottom and forms an upward convex fastening structure, and the fastening structure is fastened with the bottom of the middle sealing elastic sheet.
Optionally, the second sealing structure is a bent folded plate, the second sealing structure includes a planar fixing plate at the bottom and a sealing plate tilted upwards, the planar fixing plate is fixed at the upper end of the heightening beam through a fixing member, and the sealing plate is an elastic plate and is directly pressed and contacted with the inner wall of the oil tank.
Optionally, the stressed beam comprises a lowermost lower plate, an uppermost upper plate and at least one isolation plate located between the lower plate and the upper plate, any two plates are connected through a first connection plate, the lower plate and the adjacent isolation plate are in a zigzag shape, the upper surface of the lower plate supports and fixes the buoyancy unit of the inner floating plate, and the upper surface of the upper plate supports and fixes the heightening beam.
Optionally, each first connecting plate is connected to two plates connected to each other vertically or at an angle.
Optionally, the lower plate adjacent spacer plate is fixed to the outwardly extending portion of the upper end of the buoyancy unit.
Alternatively, the distance between the upper surface of the lower plate and the upper surface of its adjacent partition plate is lower than the height of the buoyancy unit by a predetermined value, and the buoyancy unit is pressed against the packing 16 on the upper surface of the lower plate when the buoyancy unit is fixed to the partition plate adjacent to the lower plate by a fixing member.
Optionally, increase the roof beam and include at least two-layer flat board, every two adjacent flat boards link to each other through the second connecting plate, increase the upper flat board of roof beam the superiors in proper order with second seal structure with first seal structure's is fixed, increase the lower flat board of roof beam lower floor with the upper plate of atress roof beam is fixed.
Optionally, all the fixing is by bolts or screws.
The peripheral sealing device of interior floating plate described in the above embodiment, the interior floating plate is connected to the atress roof beam, first seal structure and second seal structure are plate structure and are located the atress roof beam with increase the outside of roof beam, the side of first seal structure and second seal structure is fixed in increase the upper end of roof beam, first seal structure with the side of second seal structure by increase the roof beam after fixed, first seal structure first downwarping then downwardly extending and elasticity pressure tightly contacts the oil tank inner wall, second seal structure downwardly extending and elasticity pressure tightly contacts the oil tank inner wall, therefore can form two-layer seal structure, have twice sealed effect, can improve sealed effect well, avoid oil gas leakage or volatilize.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a top view of a floating plate according to an embodiment of the present application.
FIG. 2 is a perspective view of a portion of the inner float of FIG. 1.
Fig. 3 is a structural diagram illustrating one direction in which a sealing device 1 according to an embodiment of the present invention is combined with a buoyancy unit 3.
Fig. 4 is a schematic plan view of the sealing device 1 combined with the buoyancy unit 3.
Fig. 5 is a structural schematic view of the sealing device 1 and the buoyancy unit 3 in another direction.
Fig. 6 is a schematic structural diagram of the stress beam 13 according to another embodiment of the present application.
Fig. 7 is a schematic structural view of the height increasing beam 14 according to another embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
As shown in fig. 1, which is a top view of an inner floating plate according to an embodiment of the present invention, a sealing device 1 is connected to the periphery of the inner floating plate, and the inner floating plate includes a framework 2 and a plurality of buoyancy units 3. The overall shape of the inner floating plate is determined according to the shape of the container, that is, the shape of the sealing device 1 is determined according to the shape of the container, for example, if the container is a storage tank with a rectangular periphery, the overall shape of the sealing device 1 is rectangular, and for convenience of description, in this embodiment, if the container is a storage tank with a circular periphery, the overall shape of the sealing device 1 is circular. The skeleton 2 by sealing device 1 surrounds and constitutes a plurality of groined type by a plurality of supporting beams, includes one or more buoyancy unit 3 in every groined type, buoyancy unit 3 is the cuboid shape, and the cross section can be rectangle also can be the square.
In another embodiment of the present application, each support beam has a plurality of removable legs 4 mounted to the liquid contacting bottom surface thereof, as shown in FIG. 2, which is a partial perspective view of the inner float of FIG. 1. For example, a plurality of legs 4 fixed by fixing members (e.g., bolts) are installed on the bottom surface of one support beam, and optionally, the legs 4 are installed at the intersection of any two support beams. Wherein, in order to facilitate the fixing member to fix the socle 4, the bottom surface of the supporting beam is provided with a plurality of fixing holes (e.g., screw holes), e.g., four screw holes, for installing the socle 4.
Referring to fig. 3 to 5, fig. 3 is a schematic structural view of one direction in which a sealing device 1 according to an embodiment of the present invention is combined with a buoyancy unit 3, fig. 4 is a schematic structural view of a plane in which the sealing device 1 is combined with the buoyancy unit 3, and fig. 5 is a schematic structural view of another direction in which the sealing device 1 is combined with the buoyancy unit 3, wherein the sealing device 1 is installed between a distance between an inner floating plate and an inner wall of a storage tank, and the sealing device 1 includes: a first sealing structure 11, a second sealing structure 12, a force-bearing beam 13 and a heightening beam 14, wherein, the bottom of the stress beam 13 is fixed with the inner floating disc, the upper end of the stress beam 13 supports and fixes the heightening beam 14, the first sealing structure 11 and the second sealing structure 12 are both plate-shaped structures and are positioned outside the stress beam 13 and the heightening beam 14, the sides of the first seal structure 11 and the second seal structure 12 are fixed to the upper end of the elevation beam 14, and the first sealing structure 11 is positioned under the second sealing structure 12, after the side edges of the first sealing structure 11 and the second sealing structure 12 are fixed by the heightening beam 14, the first sealing structure 11 is bent downward and then extends downward to be elastically pressed into contact with the inner wall of the oil tank, and the second sealing structure 12 extends downward to be elastically pressed into contact with the inner wall of the oil tank.
The first sealing structure 11 includes a sealing elastic sheet 111, a sealing large elastic sheet 112, a sealing middle elastic sheet 113 and a sealing small elastic sheet 114, for example, the sealing elastic sheet 111 may be a sealing rubber sheet, the sealing large elastic sheet 112 is a sealing stainless steel large elastic sheet, the sealing middle elastic sheet 113 is a sealing stainless steel middle elastic sheet, and the sealing small elastic sheet 114 is a sealing stainless steel small elastic sheet.
The large sealing elastic sheet 112 has elasticity and is located on the outermost side of the first sealing structure 11, and is in direct elastic compression contact with the inner wall of the oil tank to generate elasticity, so that a primary sealing effect is realized. The middle sealing elastic sheet 113 is arranged on the inner side between any two large sealing elastic sheets 112, so that the phenomena that the sealing effect is poor and oil gas is volatilized due to the fact that the two large sealing elastic sheets 112 are contracted in operation of the inner floating disc, collide and overlap together to generate large gaps which are not in contact with the wall of the oil tank and the sealing elastic sheets 111 are scraped are effectively prevented. The sealing elastic sheet 111 is arranged at the inner sides of the large sealing elastic sheet 112 and the middle sealing elastic sheet 113, and the small sealing elastic sheet 114 is arranged at the inner side of the sealing elastic sheet 111, so that the small sealing elastic sheet 114 can completely press the sealing elastic sheet 111 against the inner sides of the large sealing elastic sheet 112 and the middle sealing elastic sheet 113, thereby forming a large compensation structure.
After the sealing elastic sheet 111, the large sealing elastic sheet 112, the middle sealing elastic sheet 113 and the small sealing elastic sheet 114 are assembled, the upper half part of the first sealing structure 11 is in a curved arc shape, the lower half part of the first sealing structure 11 is in a vertical plate shape, and the bottom of the lower half part of the first sealing structure 11 extends towards the inner floating disc in a curved manner to form a part, namely, the large sealing elastic sheet 112 extends towards the inner floating disc in a curved manner at the bottom to form an upward convex fastening structure, and the fastening structure can be fastened with the bottom of the middle sealing elastic sheet 113.
As shown in fig. 6, which is a schematic structural diagram of the stress beam 13 according to another embodiment of the present disclosure, the stress beam 13 is an aluminum profile or an aluminum alloy formed by one-step extrusion or casting, and the stress beam 13 is in a step-step shape, a zigzag shape, a side-standing W shape, or a wave-folded shape formed by a plurality of side-standing W shapes, for example, in a shape of at least two steps. The stressed beam 13 is a multi-layer plate structure, and includes a lower plate 133 at the lowest end, an upper plate 135 at the highest end, and at least one isolation plate located between the lower plate 133 and the upper plate 135, and any two plates are connected by a first connection plate, where the lower plate 133 and the adjacent isolation plate are in a Z-shape, the upper surface of the lower plate 133 supports the buoyancy unit 3 of the internal floating tray, and in another embodiment of the present application, a sealing gasket 16, for example, a rubber sealing gasket, is further provided between the lower plate 133 and the buoyancy unit 3. The uppermost end of the stress beam 13 is an upper plate 135, the upper plate 135 is provided with a plurality of fixing holes 137, the upper surface of the upper plate 135 supports and is fixed with the heightening beam 14, that is, the upper plate 135 is fixed with the heightening beam 14 through the fixing holes 137 and fixing members, for example, the fixing members are bolts or screws, and in another embodiment of the present application, a sealing gasket, for example, a rubber sealing gasket, is further disposed between the upper plate 135 and the heightening beam 14.
At least one layer of isolation plate is included between the lower plate 133 and the upper plate 135, and any two plates (including the upper plate 133 or the lower plate 135) are connected by a first connection plate, for example, each first connection plate may be connected with the upper and lower plates vertically or at an angle, respectively. In another embodiment of the present invention, each first connecting plate is connected to a side of a plate connected to the first connecting plate up and down, and a plurality of fixing holes are formed in the partition plate adjacent to the lower plate 133 to be fixed to the portion 15 of the buoyancy unit 3 extending outward from the upper end thereof.
For convenience of description, in this embodiment, a layer of isolation plate 134 is included between the lower plate 133 and the upper plate 135, for example, the lower half of the force-receiving beam 1 is in a zigzag shape, and the upper half of the force-receiving beam 13 is in an i-shape or also in a zigzag shape. The isolation plate 134 is connected with the lower plate 133 through a connecting plate 131, and the connecting plate 131 is perpendicular to or forms a certain included angle with the isolation plate 134 and the lower plate 133 respectively; the isolation plate 134 is connected to the upper plate 135 via a connecting plate 132, and the connecting plate 132 is perpendicular to or forms a certain angle with the isolation plate 134 and the upper plate 135, respectively. The partition plate 134 is provided with a plurality of fixing holes 136, the partition plate 134 is fixed to the outwardly extending portion 15 of the upper end of the buoyancy unit 3 by fixing members (e.g., bolts or screws), and optionally, the height of the connecting plate 131 is lower than the height of the buoyancy unit 3 by a predetermined value (e.g., 7 millimeters (mm)), that is, the distance between the upper surface of the lower plate 133 and the upper surface of the partition plate 134 is lower than the height of the buoyancy unit 3 by a predetermined value, so that when the buoyancy unit 3 is fixed to the partition plate 134 by the fixing members, a sealing gasket 16 (e.g., a rubber gasket) between the lower plate 133 and the bottom of the buoyancy unit 3 can be compressed to achieve a sealing effect.
As shown in fig. 7, which is a schematic structural diagram of the height increasing beam 14 according to another embodiment of the present disclosure, the height increasing beam 14 is installed on the upper plate 135 of the stress beam 13, for example, the height increasing beam 14 is fixed on the upper plate 135 of the stress beam 13 through a fixing member, for example, the fixing member is a bolt or a screw, then fixing holes are opened in both the height increasing beam 14 and the upper plate 135 of the stress beam 13, and the height increasing beam 14 increases a primary sealing bending arc, so as to ensure that the bending arc of the first sealing structure 11 is above the liquid level in any compensation amount range, ensure that the liquid level is at the position of the vertical plane of the first sealing structure 11, eliminate the oil and gas space, and reduce volatilization.
In another embodiment of the present application, the height-increasing beam 14 may be a metal member made of stainless steel, aluminum or aluminum alloy, etc., and may be formed by one-step extrusion or casting.
In another embodiment of the present application, the height increasing beam 14 includes at least two layers of flat plates, that is, the height increasing beam 14 includes the flat plate of the uppermost layer and the flat plate of the lowermost layer and is located at least one flat plate between the flat plate of the uppermost layer and the flat plate of the lowermost layer, and every two adjacent flat plates are connected through a second connecting plate, for example, the second connecting plate is connected with the upper and lower two flat plates thereof at a right angle or at a certain included angle. In another embodiment of the present application, the second connecting plate is respectively connected to the side edges of the upper and lower flat plates. For convenience of description, in this embodiment, the height increasing beam 14 includes two layers of flat plates, that is, the height increasing beam 14 includes an upper flat plate 141, a connecting plate 142 and a lower flat plate 143, where the upper flat plate 141 is a flat plate on the uppermost layer of the height increasing beam 14, and the lower flat plate 143 is a flat plate on the lowermost layer of the height increasing beam 14. The upper flat plate 141 and the lower flat plate 143 are disposed up and down and connected by the connecting plate 142, for example, the upper flat plate 141 and the lower flat plate 143 are parallel or substantially parallel to each other, the middle of the upper flat plate 141 and the lower flat plate 143 is connected by the connecting plate 142, the connecting plate 142 may be vertically connected to the upper flat plate 141 and the lower flat plate 143, or may form a certain included angle with the upper flat plate 141 and the lower flat plate 143, and the heightening beam 14 is in an i-shape, a Z-shape, or a half-i-shape as a whole. The upper plate 141 is provided with a plurality of fixing holes 144 for fixing the second sealing structure 12 and the first sealing structure 11 in sequence. The lower plate 143 has a plurality of fixing holes 145 for fixing with the upper plate 135 of the load beam 13.
In another embodiment of the present application, the above-described fixing may be performed by using bolts or screws, such as stainless steel bolts or screws, which ensure rigidity and are detachable.
In another embodiment of the present application, the height increasing beam 14 is optional for the sealing device 1, that is, the sealing device 1 may not include the height increasing beam 14, the first sealing structure 11 and the second sealing structure 12 are directly fixed on the upper plate 135 of the force-bearing beam 13, for example, fixed on the upper plate 135 by bolts or screws, and the fixing manner and sequence of the first sealing structure 11 and the second sealing structure 12 and the force-bearing beam 13 are the same as the fixing manner and sequence of the height increasing beam 14, and are not described herein again.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A sealing device for the periphery of an inner floating disc, characterized in that the sealing device (1) is installed between the inner floating disc and the inner wall of a storage tank, the sealing device (1) comprising: a first sealing structure (11), a second sealing structure (12), a stressed beam (13) and an increasing beam (14), wherein the bottom of the stressed beam (13) is fixed with the inner floating plate, the upper end of the stressed beam (13) supports and fixes the increasing beam (14), the first sealing structure (11) and the second sealing structure (12) are both plate-shaped structures and are positioned at the outer sides of the stressed beam (13) and the increasing beam (14), the side edges of the first sealing structure (11) and the second sealing structure (12) are fixed at the upper end of the increasing beam (14), the first sealing structure (11) is positioned below the second sealing structure (12), after the side edges of the first sealing structure (11) and the second sealing structure (12) are fixed by the increasing beam (14), the first sealing structure (11) is firstly bent downwards and then extends downwards and is elastically pressed and contacted with the inner wall, the second sealing structure (12) extends downwards and is elastically pressed and contacted with the inner wall of the oil tank.
2. The sealing device according to claim 1, wherein the first sealing structure (11) comprises a sealing elastic sheet (111), a sealing large elastic sheet (112), a sealing middle elastic sheet (113) and a sealing small elastic sheet (114), wherein the sealing large elastic sheet (112) has elasticity and is positioned at the outermost side of the first sealing structure (11) and is in direct elastic pressing contact with the inner wall of the oil tank; the middle sealing elastic sheet (113) is arranged on the inner side between any two large sealing elastic sheets (112); the sealing elastic sheet (111) is arranged at the inner sides of the large sealing elastic sheet (112) and the middle sealing elastic sheet (113), the small sealing elastic sheet (114) is arranged at the inner side of the sealing elastic sheet (111), and the small sealing elastic sheet (114) compresses the sealing elastic sheet (111) at the inner sides of the large sealing elastic sheet (112) and the middle sealing elastic sheet (113).
3. The sealing device according to claim 2, characterized in that the large sealing spring (112) is bent and extended towards the inner floating plate at the bottom and forms an upward convex fastening structure, and the fastening structure is fastened with the bottom of the middle sealing spring (113).
4. A sealing arrangement according to any one of claims 1-3, characterized in that the second sealing structure (12) is a curved flap, the second sealing structure (12) comprises a bottom planar fixing plate (121) and an upwardly turned sealing plate (122), the planar fixing plate (121) is fixed to the upper end of the lifting beam (14) by a fixing member, and the sealing plate (122) is an elastic plate which is in direct pressing contact with the inner wall of the tank.
5. A sealing device according to any one of claims 1-3, wherein the load-bearing beam (13) comprises a lowermost lower plate (133), an uppermost upper plate (135) and at least one spacer plate between the lower plate (133) and the upper plate (135), any two plates being connected by a first connecting plate, wherein the lower plate (133) and its adjacent spacer plate are Z-shaped, the upper surface of the lower plate (133) supports and fixes the buoyancy unit (3) of the inner floating disc, and the upper surface of the upper plate (135) supports and fixes the heightening beam (14).
6. A sealing device according to claim 5, wherein each first connecting plate is connected to the two plates connected above and below it, respectively, vertically or at an angle.
7. A sealing arrangement according to claim 5, characterised in that the adjacent insulation panel of the lower panel (133) is secured to the outwardly extending portion (15) of the upper end of the buoyancy unit (3).
8. The sealing device according to claim 5, wherein the distance between the upper surface of the lower plate (133) and the upper surface of its adjacent partition plate is lower than the height of the buoyancy unit (3) by a predetermined value, and when the buoyancy unit (3) is fixed to the adjacent partition plate of the lower plate (133) by means of a fixing member, the buoyancy unit (3) is pressed against the packing 16 on the upper surface of the lower plate (133).
9. A sealing arrangement according to any one of claims 1-3, c h a r a c t e r i z e d in that the riser beam (14) comprises at least two layers of plates, each two adjacent plates being connected by a second web, the uppermost upper plate (141) of the riser beam (14) being in turn secured to the second sealing structure (12) and the first sealing structure (11), and the lowermost lower plate (143) of the riser beam (14) being secured to the upper plate (135) of the load beam (13).
10. A sealing device according to any one of claims 1 to 3, wherein all the fixing is by bolts or screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921420126.9U CN211077107U (en) | 2019-08-29 | 2019-08-29 | Sealing device for periphery of inner floating disc |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921420126.9U CN211077107U (en) | 2019-08-29 | 2019-08-29 | Sealing device for periphery of inner floating disc |
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| CN211077107U true CN211077107U (en) | 2020-07-24 |
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| CN201921420126.9U Active CN211077107U (en) | 2019-08-29 | 2019-08-29 | Sealing device for periphery of inner floating disc |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112441340A (en) * | 2019-08-29 | 2021-03-05 | 香港恒展国际有限公司 | Sealing device for periphery of inner floating disc |
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- 2019-08-29 CN CN201921420126.9U patent/CN211077107U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112441340A (en) * | 2019-08-29 | 2021-03-05 | 香港恒展国际有限公司 | Sealing device for periphery of inner floating disc |
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