CN206156118U - Float and push up sealing device of shell fragment formula foamed plastic for storage tank - Google Patents
Float and push up sealing device of shell fragment formula foamed plastic for storage tank Download PDFInfo
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- CN206156118U CN206156118U CN201621195509.7U CN201621195509U CN206156118U CN 206156118 U CN206156118 U CN 206156118U CN 201621195509 U CN201621195509 U CN 201621195509U CN 206156118 U CN206156118 U CN 206156118U
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- layer rubber
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Abstract
The utility model discloses a float and push up sealing device of shell fragment formula foamed plastic for storage tank, including the outer rubber area, the one side in the outer rubber area is fixed with floating plate edge board contact, is provided with the inlayer rubber tape in the inside in the outer rubber area, has the sponge at the inside parcel of inlayer rubber tape, is provided with an elastic steel sheet who provides orientation jar wall orientation elastic force in the inboard of sponge, and the terminal of the outer rubber area, inlayer rubber tape and elastic steel sheet all is fixed with the marginal board of floating plate. The utility model provides a not enough problem of current foamed plastic seal structure elasticity, can adapt to the more requirement of large deformation of storage tank jar wall to, this sealing device has eliminated the oil gas space in the floating plate marginal gap, can effectively reduce the emergence of sealing washer fire incident.
Description
Technical field
This utility model belongs to oil storage and transportation technology field, and in particular to crude oil storage tank floating plate edge seal technology.
Background technology
Floating plate edge seal is one of Large Oil Tank control most important device of oil gas volatilization, using sealing after,
The volatilization loss of oil product is reduced in a large number can.Floating plate edge seal is mainly made up of two parts：Once sealing and secondary seal, one
Inside the secondary annular space being sealingly mounted between floating plate and tank skin, generally with oil product directly contact.In order to further reduce oil
Product evaporating loss, adds a set of sealing device, i.e. secondary seal above original once sealing.
Once sealing is broadly divided into three types according to the difference of structure：Mechanical seal, elastic soft sealing and tubular type topping up
Sealing.
Mechanical seal is complicated due to internal structure, is likely to occur electric discharge in thunderbolt, causes to occur at edge seal
Fiery explosion accident.Also, for tank skin deforms more serious storage tank, when device cannot meet seal request, can be in seal shoe plate
Certain interval is formed between tank skin, oil gas volatilization is not only resulted in, and discharging gap is easily formed when being struck by lightning.
Elastic soft sealing has simple structure, inside to become without metal parts (gap discharge will not occur during thunderbolt), to tank skin
The advantages of shape adaptability is preferable.The mounting means of immersion type is generally taken in existing flexible foam sealing, uses for a long time
After occur that rubber bag is aging, the logy phenomenon of filling sponge, and above the sealing with secondary seal oil gas barrier film
Between, there is larger oil-gas space, when storage tank is struck by lightning, still has the possibility that Fire explosion occurs.
" the lasting disjunctor closed of floating roof tank floating plate is without the close of oil-gas space for 204250669 U of utility model patent CN
Seal structure " discloses a kind of new foam seal device, and the rubber strip of original once sealing is changed to T-shaped structure by which,
A new closed annular space is defined between one of side and secondary seal oil gas barrier film, and internally be with the addition of soft
Elastic sponge.Although the structure compensate for immersion type and installs the big shortcoming of foam seal inside configuration oil-gas space, but
It is that serious storage tank is deformed for tank skin, still excessive marginal gap cannot be sealed well.
104355004 A of patent of invention CN " sealing device and its installation method between a kind of external floating top tank floating plate and tank skin "
A kind of method of optimization foam seal device is disclosed, it is similar with the former, it is that the structure has used one piece of new breeding
The rubber strip of formula, is not used T-shaped rubber strip.The invention is the optimization for in-service foam seal structure, can carry out band
There is replacing.
204078521 U of utility model patent CN " a kind of floating top oil tank once sealing device " disclose a kind of new one
Secondary sealing device, the essence of the invention are to fill a set of active suppression schemes on topping up tubular sealed device top, in sealing device
When there is high temperature or naked light, actively put out a fire.
Above technology all cannot meet the requirement of floating plate edge seal well, there is seal clearance, or marginal gap
Inside there is in oil-gas space, and sealing structure the shortcomings of there is lightning discharge point.
Utility model content
Based on above-mentioned technical problem, this utility model provides a kind of floating roof tank spring-piece type foam plasticss once sealing and fills
Put and its installation method.
The technical solution adopted by this utility model is：
A kind of floating roof tank spring-piece type foam plasticss once sealing device, including outer layer rubber band, outer layer rubber band
Side contacts fixation with floating plate margin plate, is internally provided with internal layer rubber strip in outer layer rubber strip, in internal layer rubber strip
Portion is enclosed with sponge, arranges the elastic steel sheet for being provided with towards tank skin direction elastic force in the inner side of sponge, outer layer rubber band, interior
The end of layer rubber strip and elastic steel sheet is fixed with floating plate margin plate.
Preferably, the outer layer rubber band is provided with jagged ripple in a side surface of contact tank skin.
Preferably, the top of the outer layer rubber band is flushed with the top of floating plate margin plate；The bottom of the outer layer rubber band
Subordinate is hung down, and is immersed in oil product.
Preferably, the top of the internal layer rubber strip is flushed with the top of outer layer rubber band, the bottom of internal layer rubber strip with
There is certain spatial joint clearance between the bottom of outer layer rubber band.
Preferably, the outer layer rubber band leans on the side of tank skin to be bonded together with internal layer rubber strip by the side of tank skin.
Preferably, the bottom of the elastic steel sheet is scrolled up towards the direction of tank skin.
Preferably, the side of the outer layer rubber band is compressed with floating plate margin plate by fixed plate, the outer layer rubber band
Initial end, the initial end of internal layer rubber strip, the end of one end of fixed plate and elastic steel sheet pass through upper limit plate and bolt
It is fixed on the top of floating plate margin plate.
Advantageous Effects of the present utility model are：
This utility model solves the problems, such as that existing foam seal structural elasticity is not enough, can adapt to storage tank shell more
The requirement of large deformation, also, the once sealing device eliminates the oil-gas space in floating plate marginal gap, can effectively reduce sealing
The generation of circle fire incident.
The design of currently existing sealing turns to ± 100mm according to the change of floating plate marginal gap and is designed, that is, require close
The variable range of envelope is R (- X/+X).But, when marginal gap is changed greatly, current sealing structure just cannot be entered to floating plate
Row is sealed well, so as to there is poorly sealed situation, especially with more elastic sponge soft sealing structure.
Using this sealing structure, for tank skin deforms serious storage tank, particularly on External floating roof tank, with elasticity change
Change big advantage, deformation can meet the requirement in gap change R (- X/+3X)；And the sealing structure is without metal discharge point, floating plate
Without oil-gas space in marginal gap, the generation of sealing ring fire incident can be effectively reduced.
Meanwhile, the sealing structure form is simple, if being mounted with the sealing structure, if occurring in use to send out
Raw bad seals phenomenon, can carry out band oil replacing to the sealing position being damaged.
Equally, the foam seal that immersion type is installed be changed, without changing floating plate structural shape, it is possible to
The sealing is installed and used, particularly, band oil replacing can also be carried out to which.
Description of the drawings
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
Fig. 1 is principle schematic diagram. of the present utility model.
In figure：1. tank skin；2. elastic sponge；3. internal layer rubber strip；4. outer layer rubber band；5. lower limiting board；6. steel pipe；7.
Fixed plate；8. elastic steel sheet；9. floating plate margin plate；10. bolt；11. upper limit plates；12. floating plates；13. secondary seal gripper shoes；
14. secondary seal oil gas barrier films.
Specific embodiment
With reference to accompanying drawing, a kind of floating roof tank spring-piece type foam plasticss once sealing device, including outer layer rubber band 4, outward
The side of layer rubber strip 4 contacts fixation with floating plate margin plate 9.Internal layer rubber strip 3 is internally provided with outer layer rubber strip 4,
The flexible sponge 2 of internal package of internal layer rubber strip 3, elastic sponge 2 be sandwiched between provide towards 1 direction elastic force of tank skin
Elastic steel sheet 8, the Flexible change of elastic steel sheet 8 plays extraordinary compensating action to the sealing property of elastic sponge 2.I.e.
When floating plate marginal gap is changed greatly, internal layer rubber strip 3 can be upspring by elastic steel sheet 8, and compensation elastic sponge 2 becomes weakened configuration.Root
According to the size that tank skin 1 deforms, certain adjustment can be carried out to the elasticity of elastic steel sheet 8 and shape, to meet the change of marginal gap
Change.End of the outer layer rubber with 4, internal layer rubber strip 3 and elastic steel sheet 8 is fixed with floating plate margin plate 9.
Above-mentioned outer layer rubber band 4 and internal layer rubber strip 3 are outer layer rubber band 4 and internal layer rubber by made by nitrile rubber
Adhesive tape 3 has static conductive function.Above-mentioned elastic sponge 2 is polyurethane sponge.
Used as further designing to of the present utility model, the outer layer rubber is arranged in the side surface for contacting tank skin 1 with 4
There is jagged ripple, when floating plate 12 is up and down, oil can be hung to tank skin and solidification wax plays certain scavenging action.
Further, the outer layer rubber is compressed with floating plate margin plate 9 by fixed plate 7 with 4 side, in fixed plate
7 bottom is provided with steel pipe 6, and the outside of steel pipe 6 is provided with zinc coat, and the bottom of floating plate margin plate 9 is provided with lower limiting board
5, the steel pipe 6 is pressed in outer layer rubber band 4 on lower limiting board 5.Said structure design can cause outer layer rubber tight with 4 side
Patch floating plate margin plate 9 is laid.
Further, the outer layer rubber is flushed with the top of floating plate margin plate 9 with 4 top, to greatly reduce floating plate
Oil-gas space in marginal gap.The outer layer rubber is sagging with 4 bottom, is immersed in oil product, in internal layer rubber strip 3 to tank skin
When lateral direction is ejected, certain compensating action is played, can prevent outer layer rubber 4 pairs of internal layer rubber strips 3 of band from producing constraint.Together
When, immersion type is installed, and be it also avoid oil storage liquid level and is produced oil-gas space, it is suppressed that the volatilization of oil product.
Further, the top of the internal layer rubber strip 3 is flushed with 4 top with outer layer rubber, internal layer rubber strip 3
Bottom is located at the top of lower limiting board 5, has certain spatial joint clearance between bottom of the outer layer rubber with 4.
Further, the outer layer rubber leans on side of the side of tank skin 1 with internal layer rubber strip 3 by tank skin 1 to pass through ten thousand with 4
Gluing can be combined, prevent floating plate 12 from declining process outer layer rubber band 4 and be tipping up.
Further, the elastic sponge 2 is rectangle shape, and the inside of internal layer rubber strip 3 is placed in after doubling, by internal layer rubber
Adhesive tape 3 is tightly wrapped, and centre is stayed and set for placing the gap of elastic steel sheet 8.Side of the bottom of elastic steel sheet 8 towards tank skin 1
To scrolling up, so when floating plate 12 is run downwards, sealing device can be subject to power upwards, the Elastic Steel at this moment scrolling up
Piece bottom can prevent from causing elastic sponge tear.
Further, the initial end of the outer layer rubber band, the initial end of internal layer rubber strip, one end of fixed plate and bullet
Property steel disc end pass through the top that upper limit plate 11 and bolt 10 are fixed on floating plate margin plate 9.
Above-mentioned once sealing device is comprised the following steps that using the installation method of immersion type：
(1) before be arranged on, first by outer layer rubber band 4
The side of tank skin 1 is leaned on to be bonded together using all-purpose adhesive by the side and internal layer rubber strip 3 of tank skin 1.
(2) and then start sealing device to be installed in marginal gap, first by outer layer rubber with 4 by floating plate sides
It is fixed on floating plate margin plate 9, along floating plate margin plate 9, outer layer rubber is tiled to the position of lower limiting board 5 downwards with 4, will
Fixed plate 7 is pressed in above outer layer rubber band 4.
(3) top of fixed plate 7 and outer layer rubber are fixed on the top same position of floating plate margin plate with 4 initial end
Place, the bottom of fixed plate 7 are welded with thin-wall steel tube in advance, and steel pipe 6 is pressed in outer layer rubber band 4 on lower limiting board 5.
(4) at the same position in the top that the initial end of internal layer rubber strip 3 is fixed on floating plate margin plate 9, then interior
Layer rubber strip 3 is along 9 downward drawout of floating plate margin plate.
(5) elastic steel sheet 8 is inserted inside the gap that elastic sponge 2 is held successfully in advance, mounted internal layer before adjusting
Rubber strip 3 is with outer layer rubber with 4 position, it is ensured that outer layer rubber with the sagging lower section in lower limiting board 5 in 4 bottom, meanwhile, general
Internal layer rubber strip 3 is lifted with side of the outer layer rubber with 4 bondings is fitted with tank skin 1, and the height sealing for lifting normally is used
Highly.
(6) elastic sponge 2 that will be equipped with elastic steel sheet 8 is put into inside the marginal gap between floating plate 12 and tank skin 1, adjustment
2 position of elastic sponge, is allowed to be brought into close contact with internal layer rubber strip 3.
(7) in the position on 9 top of floating plate margin plate, according to order from bottom to up, respectively by outer layer rubber band 4, fixation
Plate 7, internal layer rubber strip 3, elastic steel sheet 8, internal layer rubber strip 3, outer layer rubber band 4 and upper limit plate 11 come same aperture successively
Position, is fixed using bolt 10.
Band oil replacing：
If be mounted with the sealing, if there is bad seals phenomenon in use, can be to being damaged
Sealing position carries out band oil replacing.The oily replacing options of band are identical with the former, but should carry out explosion-proof work.
Displacement foam seal structure：
The installation site of spring-piece type foam seal is essentially identical with the installation site of existing foam seal.It is right
The foam seal that immersion type is installed is changed, can be without changing floating plate structural shape, by measuring 12 edge of floating plate
Structure, the good sealing structure being adapted customized in advance, it is possible to which the sealing is installed and used.Same way, it is also possible to foam
Plastic seal carries out band oil replacing.
Working method of the present utility model is as follows：
When floating plate 12 is moved up, phase mutual friction between the outer layer rubber band 4 of sealing device and tank skin 1 makes outer layer rubber
Adhesive tape 4 is subject to downward frictional force to act on, so that whole sealing device has the trend for moving down.But, by internal layer rubber
With 3 and outer layer rubber with 4 constraints wrapped up, sealing will not be moved.
When floating plate 12 is moved down, make outer layer rubber be subject to frictional force upwards with 4, so that whole sealing device
There is the trend for moving up.Now, fettered with outer layer rubber 4 parcels of band by internal layer rubber strip 3, and 8 bottom of elastic steel sheet
Constraint of the sweep to sponge 2, sealing will not be moved.Outer layer rubber with 4 parts fitted with tank skin 1 because with internal layer rubber
Adhesive tape 3 is bonded together, and now will not also be tipping up, and outer layer rubber is still immersed in oil product with the sagging part in 4 bottoms.
Affected by the deformation of tank skin 1, when the marginal gap between floating plate 12 and tank skin 1 reduces, elastic sponge 2 and elasticity
8 compressive deformation of steel disc, now, the working method of sealing is ibid.
Affected by the deformation of tank skin 1, when the marginal gap change between floating plate 12 and tank skin 1 is big, now sealing device is received
Power reduces, and elastic sponge 2 is expanded, elastic steel sheet 8 slightly outwards can be upspring, and makes up the impact of the deformation of tank skin 1.Now, it is interior
The inner side of layer rubber strip is still offseted with 12 margin plate of floating plate.Affected by the deformation of internal layer rubber strip 3, under 4 bottoms of outer layer rubber band
Vertical partial rubber band can be slight float, but still be immersed in oil product.
Affected by the deformation of tank skin 1, it is when the marginal gap between floating plate 12 and tank skin 1 has bigger change, now extra large
Continuous 2 elasticity of itself are discharged completely, but elastic steel sheet 8 has bigger deflection, significantly measures and outwards upsprings, and makes up excessive
Tank skin 1 deform produced by marginal gap.Now, the inner side of internal layer rubber strip can be separated with 12 margin plate of floating plate.By internal layer
The impact of the deformation of rubber strip 3, outer layer rubber gradually can be stretched with the sagging partial rubber band in 4 bottoms.
The relevant technology contents do not addressed in aforesaid way take or use for reference prior art to be capable of achieving.
It should be noted that any equivalent replacement side under the teaching of this specification, done by those skilled in the art
Formula, or obvious variant, all should be within protection domain of the present utility model.
Claims (7)
1. a kind of floating roof tank spring-piece type foam plasticss once sealing device, it is characterised in that：Including outer layer rubber band, outer layer
The side of rubber strip contacts fixation with floating plate margin plate, is internally provided with internal layer rubber strip in outer layer rubber strip, in internal layer rubber
The internal package of adhesive tape has sponge, and the elastic steel sheet being provided with towards tank skin direction elastic force, outer layer are arranged in the inner side of sponge
The end of rubber strip, internal layer rubber strip and elastic steel sheet is fixed with floating plate margin plate.
2. a kind of floating roof tank according to claim 1 spring-piece type foam plasticss once sealing device, it is characterised in that：
The outer layer rubber band is provided with jagged ripple in a side surface of contact tank skin.
3. a kind of floating roof tank according to claim 1 spring-piece type foam plasticss once sealing device, it is characterised in that：
The top of the outer layer rubber band is flushed with the top of floating plate margin plate；The bottom of the outer layer rubber band is sagging, is immersed in oil product
In.
4. a kind of floating roof tank according to claim 1 spring-piece type foam plasticss once sealing device, it is characterised in that：
The top of the internal layer rubber strip is flushed with the top of outer layer rubber band, the bottom of internal layer rubber strip and the bottom of outer layer rubber band
Between have certain spatial joint clearance.
5. a kind of floating roof tank according to claim 1 spring-piece type foam plasticss once sealing device, it is characterised in that：
The outer layer rubber band leans on the side of tank skin to be bonded together with internal layer rubber strip by the side of tank skin.
6. a kind of floating roof tank according to claim 1 spring-piece type foam plasticss once sealing device, it is characterised in that：
The bottom of the elastic steel sheet is scrolled up towards the direction of tank skin.
7. a kind of floating roof tank according to claim 1 spring-piece type foam plasticss once sealing device, it is characterised in that：
The side of the outer layer rubber band is compressed with floating plate margin plate by fixed plate, the initial end of the outer layer rubber band, internal layer rubber
The end of the initial end of adhesive tape, one end of fixed plate and elastic steel sheet passes through upper limit plate and is bolted to floating plate margin plate
Top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621195509.7U CN206156118U (en) | 2016-10-31 | 2016-10-31 | Float and push up sealing device of shell fragment formula foamed plastic for storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621195509.7U CN206156118U (en) | 2016-10-31 | 2016-10-31 | Float and push up sealing device of shell fragment formula foamed plastic for storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206156118U true CN206156118U (en) | 2017-05-10 |
Family
ID=58658146
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621195509.7U Active CN206156118U (en) | 2016-10-31 | 2016-10-31 | Float and push up sealing device of shell fragment formula foamed plastic for storage tank |
Country Status (1)
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| CN (1) | CN206156118U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110451105A (en) * | 2018-05-07 | 2019-11-15 | 中国石油化工股份有限公司 | The full-scale type once sealing device and method in External floating roof tank floating plate edge |
| CN111392253A (en) * | 2020-04-20 | 2020-07-10 | 安庆特种橡塑股份有限公司 | Efficient full-compensation elastic sealing device for floating roof storage tank without oil-gas space and installation method |
| CN114955268A (en) * | 2022-06-07 | 2022-08-30 | 北斗启明（北京）节能科技服务有限公司 | Elastic compensation sealing technology |
-
2016
- 2016-10-31 CN CN201621195509.7U patent/CN206156118U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110451105A (en) * | 2018-05-07 | 2019-11-15 | 中国石油化工股份有限公司 | The full-scale type once sealing device and method in External floating roof tank floating plate edge |
| CN111392253A (en) * | 2020-04-20 | 2020-07-10 | 安庆特种橡塑股份有限公司 | Efficient full-compensation elastic sealing device for floating roof storage tank without oil-gas space and installation method |
| CN114955268A (en) * | 2022-06-07 | 2022-08-30 | 北斗启明（北京）节能科技服务有限公司 | Elastic compensation sealing technology |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221130 Address after: No. 22, Chaoyangmen street, Chaoyang District, Beijing 100020 Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sinopec Safety Engineering Research Institute Co.,Ltd. Address before: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: SINOPEC Research Institute OF SAFETY ENGINEERING |