CN215567909U - Elastic primary sealing device for floating roof crude oil storage tank - Google Patents
Elastic primary sealing device for floating roof crude oil storage tank Download PDFInfo
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- CN215567909U CN215567909U CN202121970826.2U CN202121970826U CN215567909U CN 215567909 U CN215567909 U CN 215567909U CN 202121970826 U CN202121970826 U CN 202121970826U CN 215567909 U CN215567909 U CN 215567909U
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Abstract
The utility model discloses an elastic primary sealing device for a floating roof crude oil storage tank, and belongs to the technical field of floating roof storage tank sealing. The utility model is arranged between the tank wall of an outer floating roof storage tank and an outer ring plate of an edge floating cabin, the outer ring plate of the edge floating cabin is provided with a sealing pressure plate and a sealing supporting plate, a primary soft foam sealing device is arranged between the sealing pressure plate and the sealing supporting plate, and the primary soft foam sealing device is filled with a soft foam filler; an elastic primary sealing device is fixed on the sealing pressure plate and comprises high-elasticity soft foam cylinders which are annularly arranged in a segmented mode, a rubber wrapping belt wraps the outer portions of the high-elasticity soft foam cylinders, and the segmented high-elasticity soft foam cylinders are wrapped into a whole by the rubber wrapping belt. The utility model realizes the sealing of each part of the annular gap of the storage tank by utilizing the elastic deformation of the elastic foam cylinder, has low requirement on the shape tolerance of the tank wall, large contact area with the tank wall and good sealing effect.
Description
Technical Field
The utility model relates to a primary sealing device for storage tank sealing, and belongs to the technical field of storage tank sealing.
Background
At present, a primary sealing device for sealing a storage tank is provided with sealing forms such as mechanical sealing, soft foam sealing, tubular sealing and the like, and the three sealing structures have defects and are not ideal in sealing effect. After the sealing performance of the primary seal is reduced, oil gas volatilizes out of the primary and secondary sealing spaces, the concentration of the oil gas at the sealing position of the storage tank exceeds the standard, and a fire disaster is induced by lightning sparks. In recent years, a fire disaster of a large storage tank caused by lightning strike has occurred in China, and the fire disaster is difficult to extinguish and has great harm because the stored medium is crude oil. The existing primary sealing device is difficult to seal the existing storage tank, and therefore a sealing device with better sealing performance must be developed.
In the prior art, the chinese patent CN204985711U, which was filed by the present applicant, discloses a primary sealing device for sealing a storage tank, which adopts an air bag filled with inert gas such as nitrogen, and utilizes the elastic deformation of the air bag to seal the annular gap between the tank wall of the storage tank and the outer annular plate of the edge floating chamber. Because the air bag inflating nozzle has leakage, the air bag needs to be inflated at intervals, an air supply system needs to be arranged, the operation workload is greatly increased for large-scale oil depots and oil depots, and the device needs to be maintained.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides the primary sealing device for sealing the storage tank, which is matched with the primary sealing device for soft foam for use, so that the wall of the storage tank and the floating roof have good sealing performance, volatile oil gas at the sealing position of the storage tank is effectively eliminated, and the safe operation of the storage tank is realized.
The utility model is realized by the following technical scheme: the elastic primary sealing device of the floating roof crude oil storage tank is arranged between the tank wall of the outer floating roof storage tank and an outer ring plate of an edge floating cabin and is annularly arranged, a sealing pressing plate is arranged in the middle of the outer ring plate of the edge floating cabin, a sealing supporting plate is arranged at the lower part of the outer ring plate of the edge floating cabin, a primary soft foam sealing device is arranged between the sealing pressing plate and the sealing supporting plate, a primary soft foam packing is filled in the primary soft foam sealing device, and two sides of the primary soft foam sealing device are tightly pressed and abutted between the tank wall and the outer ring plate of the edge floating cabin.
An elastic primary sealing device is fixed on the sealing pressure plate and comprises high-elasticity soft foam cylinders which are annularly arranged in a segmented manner, and rubber wrapping belts wrap the high-elasticity soft foam cylinders into a whole; the upper part of the sealing pressure plate is used for simultaneously sealing and fixing the sealing pressure plate and the rubber wrapping belt on the outer ring plate of the edge floating cabin by using bolts, the upper part of the elastic primary sealing device is protruded in an arc surface under the action of a high-elasticity soft foam cylinder, the upper end of the elastic primary sealing device is higher than the bolts and is close to the secondary sealing device, and two sides of the elastic primary sealing device are tightly pressed and abutted between the tank wall and the outer ring plate of the edge floating cabin.
Furthermore, the inner side of the upper part of the elastic primary sealing device leaves a containing space for the bolt, and one end of the bolt, which is in contact with the elastic primary sealing device, is provided with a protective cap.
Further, the sealing pressure plate is arranged inside the rubber wrapping belt, and the cross section of the sealing pressure plate is L-shaped.
Furthermore, three soft foam fillers are filled in the soft foam primary sealing device.
Furthermore, a pressing plate is arranged on the inner side of the primary soft foam sealing device, and the upper end of the pressing plate, the sealing pressing plate and the rubber wrapping belt are fixed by the bolts simultaneously.
The utility model has the beneficial effects that: the elastic primary sealing device of the utility model consists of an elastic foam cylinder, a rubber packing belt, a supporting plate, a pressing plate, a bolt, a nut, a gasket and other parts. The annular gaps with different sizes at all parts of the annular gap of the storage tank are sealed by utilizing the elastic deformation of the elastic foam cylinder, and the elastic primary sealing device can be in close contact with the tank wall to seal the storage tank.
The elastic sealing of the utility model realizes the sealing of the annular gap of the storage tank by utilizing the elastic deformation of the elastic foam cylinder, the maintenance workload during the operation is less, and no auxiliary facility is needed to be arranged. And the filling material for the elastic sealing of the floating roof storage tank is high-elasticity foam, so that the floating roof storage tank has flame retardant property and improves the safety.
The utility model also has the characteristics of low requirement on the shape tolerance of the tank wall, large contact area with the tank wall and good sealing effect.
Drawings
The utility model is further illustrated below with reference to the figures and examples.
FIG. 1 is a partial view of a top view of the present invention;
FIG. 2 is a partial sectional view A-A of FIG. 1;
FIG. 3 is an enlarged partial view of the sealing portion;
in the figure, the floating cabin comprises a sealing supporting plate 1, a sealing supporting plate 2, a tank wall 3, a soft foam primary sealing device 4, a sealing pressing plate 5, an elastic foam cylinder 6, a rubber wrapping belt 7, a bolt 8, a protective cap 9, a secondary sealing device 10, a pressing plate 11, a floating cabin top plate 12, an edge floating cabin outer ring plate 13 and a floating cabin bottom plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail but are intended to be part of the specification as appropriate.
As shown in fig. 1, 2 and 3, a floating cabin is arranged in the storage tank, the floating cabin is provided with a floating cabin top plate 11, an edge floating cabin outer ring plate 12 and a floating cabin bottom plate 13, and a primary sealing device and a secondary sealing device 9 are arranged between the tank wall 2 and the floating cabin. An elastic primary sealing device of a floating roof crude oil storage tank is arranged between a tank wall 2 of an outer floating roof storage tank and an edge floating cabin outer ring plate 12 in an annular arrangement mode, a sealing pressing plate 4 is arranged in the middle of the edge floating cabin outer ring plate 12, a sealing supporting plate 1 is arranged on the lower portion of the edge floating cabin outer ring plate 12, a primary soft foam sealing device 3 is arranged between the sealing pressing plate 4 and the sealing supporting plate 1, a primary soft foam packing is filled in the primary soft foam sealing device 3, and two sides of the primary soft foam sealing device 3 are tightly pressed and abutted between the tank wall 2 and the edge floating cabin outer ring plate 12.
An elastic primary sealing device is fixed on the sealing pressure plate 4 and comprises a high-elasticity soft foam cylinder 5 which is annularly arranged in a segmented manner, a rubber wrapping belt 6 is wrapped outside the elastic primary sealing device, and the segmented high-elasticity soft foam cylinder 5 is wrapped into a whole by the rubber wrapping belt 6; the upper part of the sealing pressure plate 4 is used for simultaneously sealing and fixing the sealing pressure plate 4 and the rubber wrapping belt 6 on the outer ring plate 12 of the edge floating cabin by using bolts 7, the upper part of the elastic primary sealing device is protruded in an arc surface under the action of the high-elasticity soft foam cylinder 5, the height of the upper end of the elastic primary sealing device exceeds the bolts 7 and is close to the secondary sealing device 9, and two sides of the elastic primary sealing device are tightly pressed and abutted between the tank wall 2 and the outer ring plate 12 of the edge floating cabin.
Furthermore, the inner side of the upper part of the elastic primary sealing device leaves a containing space for the bolt 7, and one end of the bolt 7, which is in contact with the elastic primary sealing device, is provided with a protective cap 8.
Further, the sealing pressure plate 4 is arranged inside the rubber wrapping belt 6, and the cross section of the sealing pressure plate 4 is L-shaped.
Further, three soft foam fillers are filled in the soft foam primary sealing device 3.
Further, a pressure plate 10 is arranged on the inner side of the primary soft foam sealing device 3, and the upper end of the pressure plate 10, the sealing pressure plate 4 and the rubber packing belt 6 are fixed by the bolt 7.
The elastic primary sealing device comprises a sectional type elastic foam cylinder, a rubber wrapping belt, a supporting plate, a pressing plate, a bolt, a nut, a gasket and the like. The rubber wrapping belt is an integral ring and is arranged outside the elastic foam cylinder to play a role in protecting the elastic foam cylinder; the elastic primary sealing device is arranged in an annular space between the floating roof and the tank wall, the lower part of the elastic primary sealing device is provided with a supporting plate, the upper part of the elastic primary sealing device is provided with a pressing plate, the positioning of sealing is realized, and the elastic primary sealing device is fixed on an outer edge plate of the floating roof by bolts; because of the good elasticity of the foam cylinder, the elastic primary sealing device can be in close contact with the tank wall under the condition that the sizes of annular gap spaces of all parts at the sealing position of the storage tank are different, so that the storage tank is sealed. The elastic sealing of the utility model realizes the sealing of the annular gap of the storage tank by utilizing the elastic deformation of the elastic foam cylinder, the maintenance workload during the operation is less, and no auxiliary facility is needed to be arranged. And the filling material for the elastic sealing of the floating roof storage tank is high-elasticity foam, so that the floating roof storage tank has flame retardant property and improves the safety.
The above description is only exemplary of the present invention and should not be taken as limiting the utility model, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a float top crude oil storage tank elasticity sealing device once, installs and floats between cabin outer ring board (12) at outer jar wall (2) and the edge of floating top storage tank, is the annular and arranges its characterized in that: a sealing pressure plate (4) is arranged in the middle of the outer ring plate (12) of the edge floating cabin, a sealing supporting plate (1) is arranged at the lower part of the outer ring plate (12) of the edge floating cabin, a primary soft foam sealing device (3) is arranged between the sealing pressure plate (4) and the sealing supporting plate (1), a primary soft foam filler is filled in the primary soft foam sealing device (3), and two sides of the primary soft foam sealing device (3) are tightly pressed between the tank wall (2) and the outer ring plate (12) of the edge floating cabin;
an elastic primary sealing device is fixed on the sealing pressure plate (4), the elastic primary sealing device comprises high-elasticity soft foam cylinders (5) which are annularly arranged in a segmented mode, rubber wrapping belts (6) are wrapped outside the elastic primary sealing device, and the segmented high-elasticity soft foam cylinders (5) are wrapped into a whole by the rubber wrapping belts (6); the upper part of the sealing pressure plate (4) is fixed with the sealing pressure plate (4) and the rubber wrapping belt (6) on the outer ring plate (12) of the edge floating cabin by bolts (7), the upper part of the elastic primary sealing device is protruded in an arc surface under the action of a high-elasticity soft foam cylinder (5), the upper end of the elastic primary sealing device is higher than the bolts (7) and is close to the secondary sealing device (9), and two sides of the elastic primary sealing device are tightly pressed and abutted between the tank wall (2) and the outer ring plate (12) of the edge floating cabin.
2. The floating roof crude oil storage tank elastic primary seal device of claim 1, wherein: the inner side of the upper part of the elastic primary sealing device leaves an accommodating space of the bolt (7), and one end of the bolt (7) in contact with the elastic primary sealing device is provided with a protective cap (8).
3. The floating roof crude oil storage tank elastic primary seal device of claim 1, wherein: the sealing pressure plate (4) is arranged inside the rubber wrapping belt (6), and the cross section of the sealing pressure plate (4) is L-shaped.
4. The floating roof crude oil storage tank elastic primary seal device of claim 1, wherein: three soft foam fillers are filled in the soft foam primary sealing device (3).
5. The floating roof crude oil storage tank elastic primary seal device of claim 1 or 3, characterized in that: the inner side of the primary soft foam sealing device (3) is provided with a pressing plate (10), and the upper end of the pressing plate (10), the sealing pressing plate (4) and the rubber wrapping belt (6) are fixed by the bolt (7) at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121970826.2U CN215567909U (en) | 2021-08-20 | 2021-08-20 | Elastic primary sealing device for floating roof crude oil storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121970826.2U CN215567909U (en) | 2021-08-20 | 2021-08-20 | Elastic primary sealing device for floating roof crude oil storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215567909U true CN215567909U (en) | 2022-01-18 |
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ID=79840060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121970826.2U Active CN215567909U (en) | 2021-08-20 | 2021-08-20 | Elastic primary sealing device for floating roof crude oil storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215567909U (en) |
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2021
- 2021-08-20 CN CN202121970826.2U patent/CN215567909U/en active Active
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