CN106005775B - Floating roof tank once sealing device and its installation method - Google Patents
Floating roof tank once sealing device and its installation method Download PDFInfo
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- CN106005775B CN106005775B CN201610546540.9A CN201610546540A CN106005775B CN 106005775 B CN106005775 B CN 106005775B CN 201610546540 A CN201610546540 A CN 201610546540A CN 106005775 B CN106005775 B CN 106005775B
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- band
- sealing device
- caulking gum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/34—Large containers having floating covers, e.g. floating roofs or blankets
- B65D88/42—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle
- B65D88/46—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle with mechanical means acting on the seal
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a kind of floating roof tank once sealing device and its installation method.The once sealing device is installed between floating plate edge slot, and when floating plate marginal gap does not change, sealing device is kept good fit-state by the twisting force of sponge elastic force and torsionspring and tank skin；When floating plate marginal gap becomes it is small when sealing device be in plumbness all the time by the support of rubber mat plate, but compression after sponge stress ensure that the good fit state with tank skin；When the change of floating plate marginal gap is big, the compression stress between sealing device and tank skin diminishes, and now can be popped up support bar by the twisting force of torsionspring, so that rubber bag band keeps close fit-state with the tank skin moment.During support bar rotates, lower caulking gum band can with the lifting of fixed plate fluctuations, but no matter under which kind of state, lower caulking gum band can be bonded all the time with liquid level, so as to play the purpose for preventing oil gas volatilization.
Description
Technical field
The invention belongs to oil storage and transportation technology field, more particularly to a kind of floating roof tank once sealing device and its installation
Method.
Background technology
Floating plate edge seal is one of Large Oil Tank control most important device of oil gas volatilization, after sealing,
The volatilization loss of oil product can largely be reduced.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 directly contacted with oil product.In order to further reduce oil
Product evaporating loss, a set of sealing device, i.e. secondary seal are added 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 likely to occur electric discharge in thunderbolt, causes to occur at edge seal because internal structure is complicated
Fiery explosion accident.And more serious storage tank is deformed for tank skin, can be in seal shoe when said apparatus can not meet seal request
Certain gap is formed between plate and tank skin, does not only result in oil gas volatilization, and by easily forming discharging gap when being struck by lightning.Bullet
Property soft seal have simple in construction, internal no metal parts (gap discharge will not occur during thunderbolt), to tank skin deform adaptability compared with
The advantages that good.The mounting means of immersion type is generally taken in existing flexible foam sealing, and rubber occurs after long-time use
The aging of glue bag, the logy phenomenon of filling sponge, and above sealing between secondary seal oil gas barrier film, have compared with
Big oil-gas space, storage tank is by the possibility for still having generation Fire explosion when being struck by lightning.Notification number is CN 204250669U practicality
New patent discloses a kind of lasting sealing structure of the disjunctor closed without oil-gas space of floating roof tank floating plate, and the patent provides
A kind of novel foamed plastic sealing device, the rubber strip of original once sealing is changed to T-shaped structure, one of side with it is secondary
A new closed annular space is formed between Seal Oil air bound film, and internally with the addition of soft elastic sponge；The structure
Although compensate for the shortcomings that immersion type installation foam seal inside configuration oil-gas space is big, deformed for tank skin serious
Storage tank, the structure still can not be sealed well to excessive marginal gap.The A's of Publication No. CN 104355004
Application for a patent for invention discloses sealing device and its installation method between a kind of external floating top tank floating plate and tank skin, the application for a patent for invention
A kind of method for optimizing foam seal device is given, similar with the former, simply the structure has used one piece of new breeding
The rubber strip of formula, T-shaped rubber strip is not used；The application for a patent for invention is the optimization for in-service foam seal structure, can
Changed with carrying out band oil.Notification number is that the U of CN 204078521 utility model patent discloses a kind of floating top oil tank once sealing
Device, the utility model patent disclose a kind of new once sealing device, and its essence is on topping up tubular sealed device
Portion fills a set of active suppression schemes, when high temperature or naked light occurs in sealing device, is actively put out a fire.Above technology all can not be very
The good requirement for meeting floating plate edge seal, seal clearance be present, have oil-gas space or sealing structure internal memory in marginal gap
The lightning discharge point the shortcomings of.
The content of the invention
It is an object of the invention to propose a kind of floating roof tank once sealing device, to solve existing foam seal
The problem of structural elasticity deficiency, it can adapt to the requirement of storage tank shell more large deformation.
To achieve these goals, the present invention adopts the following technical scheme that：
Floating roof tank once sealing device, including bearing, support bar, torsionspring, rubber bag band, sponge, fixed plate,
Upper caulking gum band and lower caulking gum band；Wherein,
It is provided with bearing and is used for the bolt hole combined with floating plate margin plate and the No.1 axis hole for installing support bar；
The upper end of torsionspring and support bar is installed on bearing jointly by a connecting shaft extending into No.1 axis hole；
No.1 connecting seat is provided with the lower end front side surface of support bar, No. two axis holes are provided with No.1 connecting seat；
Rubber mat plate is installed at the lower end rear side surface of support bar；
Rubber bag band, sponge and fixed plate are respectively positioned on the front lower place of support bar；
The upper end of rubber bag band and the lower end of upper caulking gum band are installed in fixed plate jointly；Upper caulking gum band is along institute
The front side for stating support bar is stretched and bypasses the top of bearing upwards, and the upper end of upper caulking gum band is installed together with bearing；
The lower end of rubber bag band and the lower end of lower caulking gum band are installed in fixed plate jointly；Lower caulking gum band is along institute
The rear side for stating support bar extends to support position upwards, and the upper end of lower caulking gum band is installed together with bearing；
Sponge is located between the fill area surrounded by rubber bag band and fixed plate；
No. two connecting seats are provided with the middle part of fixed plate, No. three axis holes, the lower end of support bar are provided with No. two connecting seats
It is attached between fixed plate by sequentially passing through the connecting shaft of above-mentioned No. two axis holes and No. three axis holes.
Preferably, the floating roof tank also includes angle steel and bolt with once sealing device；Wherein,
The upper end of rubber bag band and the lower end of upper caulking gum band are installed to the upper end of fixed plate by angle steel and bolt；Rubber
The lower end of glue band and the lower end of lower caulking gum band are installed to the lower end of fixed plate by angle steel and bolt.
In addition, the invention also provides a kind of floating roof tank installation method of once sealing device, it is used such as lower section
Case：
The installation method of floating roof tank once sealing device, its sealing device being directed to are above-mentioned floating roof tank with one
Secondary sealing device；The installation method specifically comprises the following steps：
(1) floating roof tank is transported to above floating plate with all parts of once sealing device；
(2) rubber bag band and sponge are assembled above floating plate；
(3) rubber mat plate is installed to supporting plate lower end, connected the lower end of support bar with fixed plate by connecting shaft
Connect；
(4) lower end of the upper end of rubber bag band and upper caulking gum band is installed in fixed plate jointly, at the same it is close by under
The lower end of rubber strip is sealed to be installed in fixed plate jointly with the lower end of rubber bag band；
(5) bearing is installed to the top of floating plate margin plate, then the above-mentioned part after assembling is put between floating plate edge
In gap, the upper end of support bar and torsionspring are installed on bearing jointly using connecting shaft；
(6) upper end of the upper end of upper caulking gum band and lower caulking gum band is installed together with bearing.
The invention has the advantages that：
The sealing device that the present invention addresses is installed between floating plate edge slot, when floating plate marginal gap does not change,
Whole sealing device is kept good fit-state by the twisting force of sponge elastic force and torsionspring and tank skin；When floating plate side
Intermarginal gap becomes hour and is in plumbness all the time by the support of rubber mat plate, but compression after sponge stress, further
It ensure that the good fit state of sealing device and tank skin；When the change of floating plate marginal gap is big, between sealing device and tank skin
Compression stress diminishes, and now can be popped up support bar by the twisting force of torsionspring, so that rubber bag band and tank
The wall moment keeps close fit-state, and during support bar rotates, lower caulking gum band can be with the lifting of fixed plate
And fluctuations, but no matter under which kind of state, lower caulking gum band can be bonded all the time with liquid level, and oil is prevented so as to play
The purpose of gas volatilization.The present invention can adapt to the seal request of storage tank shell more large deformation, and because above-mentioned sealing device disappears
Except the oil-gas space in floating plate marginal gap, therefore it can effectively reduce the generation of sealing ring fire incident.
Brief description of the drawings
Fig. 1 is the structural representation of floating roof tank once sealing device in the embodiment of the present invention 1；
Fig. 2 be the embodiment of the present invention 1 once sealing device in support bar structural representation；
Fig. 3 be the embodiment of the present invention 1 once sealing device in rubber bag band structural representation；
Fig. 4 be the embodiment of the present invention 1 once sealing device in sponge structural representation；
Fig. 5 be the embodiment of the present invention 1 once sealing device in fixed plate structural representation；
Fig. 6 is the once sealing device middle and upper part angle steel of the embodiment of the present invention 1 and the structural representation of bottom angle steel；
Fig. 7 be the embodiment of the present invention 1 once sealing device in torsionspring main diagram；
Fig. 8 be the embodiment of the present invention 1 once sealing device in torsionspring side diagram；
Fig. 9 is the use state figure of floating roof tank once sealing device in the embodiment of the present invention 1.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described in further detail to the present invention：
Embodiment 1
With reference to shown in Fig. 1, floating roof tank once sealing device, including bearing 11, support bar 10, torsionspring 13, rubber
Glue band 2, sponge 3, fixed plate 7, upper caulking gum band 16 and lower caulking gum band 4.Wherein,
Bolt hole and No.1 axis hole are provided with bearing 11.Wherein, spiro keyhole position passes through the bolt in the rear side of bearing 11
Bearing 11 can be arranged on the top of the margin plate of floating plate 12 by hole.No.1 axis hole is located at the front center position of bearing 11.
The main function of bearing 11 is the whole sealing device of support.Specifically, the upper end of torsionspring 13 and support bar 10
It is installed to jointly on bearing 11 by a connecting shaft extending into No.1 axis hole 9.
As shown in Figure 7 and Figure 8, its role is to when floating plate marginal gap increases, can oneself for the structure of torsionspring 13
It is dynamic that whole sealing device is upspring, the sealing device in the present invention is kept good with tank skin 1 all the time and be bonded, prevent oil gas from waving
Hair.
As shown in Fig. 2 No.1 connecting seat 18 is provided with the lower end front side surface of support bar 10, on No.1 connecting seat 18
Provided with No. two axis holes 19；Rubber mat plate 8 is installed at the lower end rear side surface of support bar 10.
In installation process, the lower end rear side surface of support bar 10 towards floating plate 12 edge Board position, rubber mat plate 8
Effect is to avoid support bar 10 from directly contacting floating plate margin plate.
As Fig. 3, Fig. 4 and Fig. 5 respectively illustrate the structural representation of rubber bag band 2, sponge 3 and fixed plate 7.Installing
Cheng Zhong, rubber bag band 2, sponge 3 and fixed plate 7 are respectively positioned on the front lower place of support bar.Wherein,
The upper end of rubber bag band 2 is installed to the upper end of fixed plate 7 by angle steel 5 and bolt 6, and the lower end of rubber bag band 2 leads to
Cross angle steel 5 and bolt 6 is installed to the lower end of fixed plate 7.The structure of angle steel 5 is as shown in Figure 6.
Sponge 3 is located between the fill area surrounded by rubber bag band 2 and fixed plate 7.The effect of sponge 3 is to make rubber
Band 2 has good fit-state with tank skin 1.
As shown in figure 5, being provided with No. two connecting seats 20 at the middle part of fixed plate 7, No. three axis holes are provided with No. two connecting seats 20
17.Connected between the lower end of support bar 10 and fixed plate 7 by sequentially passing through the connecting shaft 9 of No. two axis holes 19 and No. three axis holes 17.
In addition, the lower end of upper caulking gum band 16 is installed to the upper end of fixed plate 7, upper sealing rubber by angle steel 5 and bolt 6
Stretch upwards and be arranged on one around the top of bearing, upper end and the bearing of upper caulking gum band in front side of the adhesive tape along support bar
Rise.
The effect of upper caulking gum band 16 is to prevent foreign matter from falling into inside sealing structure.In installation process, upper sealing rubber
Adhesive tape 16 should have certain surplus, and during increasing marginal gap, the change to sealing compensates.
The lower end of lower caulking gum band 4 is installed to the lower end of fixed plate 7, lower caulking gum band 4 by angle steel 5 and bolt 6
Support position is extended to upwards along the rear side of support bar, and the upper end of lower caulking gum band is installed together with bearing.
Do not deformed in tank skin 1, i.e., in the case that the marginal gap of floating plate 12 does not change, lower caulking gum band 4 should be with storage
The liquid level of tank 1 is bonded, and the lower caulking gum band 4 for having part surplus is immersed in oil product.
The effect of lower caulking gum band 4 is to keep apart storage tank storage medium with sealing structure, prevents oil gas volatilization.
Upper caulking gum band 16 and the nitrile rubber band used in lower caulking gum band 4 should have static conductive in the present embodiment 1
Function, metal material should be zinc-plated structure.
Embodiment 2
Floating roof tank in the present embodiment 2 is directed to the floating roof in above-described embodiment 1 with the installation method of once sealing device
Storage tank once sealing device, the once sealing use the mounting means of immersion type, and specific installation steps are as follows：
(1) floating roof tank is transported to the top of floating plate 12 with all parts of once sealing device；
(2) rubber bag band 2 and sponge 3 are assembled above floating plate 12；
(3) rubber mat plate 8 is installed to the lower end of supporting plate 10 close to the side of the margin plate of floating plate 12, in the another of supporting plate 10
Side, the lower end of support bar 10 is attached with fixed plate by connecting shaft 9；Fixed plate 7 should be centered on connecting shaft 9, can
To spin upside down, can so making fixed plate 7, the moment keeps being in parallel state with tank skin 1 in use；
(4) lower end of the upper end of rubber bag band 2 and upper caulking gum band 16 is installed to the upper end of fixed plate 7 jointly, together
When the lower end of the lower end of lower caulking gum band 4 and rubber bag band 2 is installed to the lower end of fixed plate 7 jointly；
(5) bearing 11 is installed to the top of the margin plate of floating plate 12, the above-mentioned part after assembling is then put into floating plate 12
In marginal gap, the upper end of support bar 10 and torsionspring 13 are installed on bearing 11 jointly using connecting shaft 9；
(6) upper end of the upper end of upper caulking gum band 16 and lower caulking gum band 4 is installed together with bearing 11.
Floating roof tank is as follows with the substantially operation principle of once sealing device in the present invention：
When the marginal gap of floating plate 12 does not change, torsion of the whole sealing device by the elastic force and torsionspring 13 of sponge 3
Power acts on, so as to be in fit-state all the time with tank skin 1.
When the marginal gap of floating plate 12 become it is small when, support bar 10 by rubber mat plate 8 support, all the time in plumbness, but
Be sponge 3 after stress, can compression, whole sealing device can tightly fit together with tank skin 1.
As shown in figure 9, when the marginal gap of floating plate 12 increases, the compression stress between sealing device and tank skin 1 diminishes, this
When, acted on, support bar 10 can be popped up by the power of torsionspring 13, so that rubber bag band 2 keeps tight with the moment of tank skin 1
Closely connected conjunction.And gap change is bigger, the angle that support bar 10 rotates is also bigger.
After support bar 10 is upspring, due to being connected by connecting shaft 9 between fixed plate 7 and support bar 10, so no matter
The anglec of rotation of support bar 10 have it is much, fixed plate 7 can all the time with the keeping parallelism state of tank skin 1.
During support bar 10 rotates, the lower meeting of caulking gum band 4 fluctuations with the lifting of fixed plate 7, but
No matter which kind of state be in, lower caulking gum band 4 can be bonded all the time with liquid level, so as to play the purpose for preventing oil gas volatilization.
Existing Packed design turns to ± 100mm according to the change of the marginal gap of floating plate 12 and is designed, that is, requires sealing
Variable range be R (- X/+X).But when marginal gap changes greatly, current sealing structure can not just be carried out to floating plate
Sealing well, so as to poorly sealed situation, especially with more elastic sponge soft sealing structure.
But the once sealing device provided by using the present invention, particularly on External floating roof tank, become for tank skin
The serious storage tank of shape, the once sealing device is flexible to be changed the advantages of big, and deformation can meet that gap changes R's (- X/+3X)
It is required that；And the part of inside configuration is isolated from the outside and come by the sealing device using rubber strip, being allowed to inside can not produce
Oil-gas space, so as to effectively prevent the possibility for occurring that sealing ring fire incident occurs inside sealing structure.
In addition, weather shield 14 and secondary seal oil gas barrier film 15 are additionally provided with above once sealing of the present invention.
Certainly, described above is only presently preferred embodiments of the present invention, and the present invention is not limited to enumerate above-described embodiment, should
When explanation, any those skilled in the art are all equivalent substitutes for being made, bright under the teaching of this specification
Aobvious variant, all falls within the essential scope of this specification, ought to be protected by the present invention.
Claims (3)
1. floating roof tank once sealing device, it is characterised in that including bearing, support bar, torsionspring, rubber bag band, sea
Silk floss, fixed plate, upper caulking gum band and lower caulking gum band；Wherein,
It is provided with bearing and is used for the bolt hole combined with floating plate margin plate and the No.1 axis hole for installing support bar；Reverse
The upper end of spring and support bar is installed on bearing jointly by a connecting shaft extending into No.1 axis hole；
No.1 connecting seat is provided with the lower end front side surface of support bar, No. two axis holes are provided with No.1 connecting seat；Supporting
Rubber mat plate is installed at the lower end rear side surface of bar；
Rubber bag band, sponge and fixed plate are respectively positioned on the front lower place of support bar；
The upper end of rubber bag band and the lower end of upper caulking gum band are installed in fixed plate jointly；Upper caulking gum band is along the branch
The front side of strut is stretched upwards and around the top of bearing, the upper end of upper caulking gum band is installed together with bearing；
The lower end of rubber bag band and the lower end of lower caulking gum band are installed in fixed plate jointly；Lower caulking gum band is along the branch
The rear side of strut extends to support position upwards, and the upper end of lower caulking gum band is installed together with bearing；
Sponge is located between the fill area surrounded by rubber bag band and fixed plate；
No. two connecting seats are provided with the middle part of fixed plate, No. three axis holes are provided with No. two connecting seats, the lower end of support bar is with consolidating
It is attached between fixed board by sequentially passing through the connecting shaft of above-mentioned No. two axis holes and No. three axis holes.
2. floating roof tank according to claim 1 once sealing device, it is characterised in that the floating roof tank is with once
Sealing device also includes angle steel and bolt；Wherein,
The upper end of rubber bag band and the lower end of upper caulking gum band are installed to the upper end of fixed plate by angle steel and bolt；Rubber bag
The lower end of band and the lower end of lower caulking gum band are installed to the lower end of fixed plate by angle steel and bolt.
3. the floating roof tank installation method of once sealing device, its sealing device being directed to is described in the claims 1 or 2
Floating roof tank once sealing device；Characterized in that, the installation method comprises the following steps：
(1) floating roof tank is transported to above floating plate with all parts of once sealing device；
(2) rubber bag band and sponge are assembled above floating plate；
(3) rubber mat plate is installed to supporting plate lower end, be attached the lower end of support bar with fixed plate by connecting shaft；
(4) lower end of the upper end of rubber bag band and upper caulking gum band is installed in fixed plate jointly, while by lower sealing rubber
The lower end of adhesive tape is installed in fixed plate jointly with the lower end of rubber bag band；
(5) bearing is installed to the top of floating plate margin plate, then the above-mentioned part after assembling is put into floating plate marginal gap,
The upper end of support bar and torsionspring are installed on bearing jointly using connecting shaft；
(6) upper end of the upper end of upper caulking gum band and lower caulking gum band is installed together with bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610546540.9A CN106005775B (en) | 2016-07-12 | 2016-07-12 | Floating roof tank once sealing device and its installation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610546540.9A CN106005775B (en) | 2016-07-12 | 2016-07-12 | Floating roof tank once sealing device and its installation method |
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| CN106005775B true CN106005775B (en) | 2018-03-23 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016762B (en) * | 2016-10-31 | 2019-08-30 | 中国石油化工股份有限公司 | Floating roof tank spring-piece type foamed plastics once sealing device and its installation method |
| CN111186649B (en) * | 2018-11-14 | 2022-02-25 | 中国石油化工股份有限公司 | Super-amphiphobic surface floating plate edge sealing device for external floating roof storage tank and using method |
| CN113291640B (en) * | 2021-06-25 | 2022-10-04 | 江苏菲诺机械设备有限公司 | Double-sealing floating plate |
| 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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| CN201580721U (en) * | 2009-10-28 | 2010-09-15 | 上海恒浮石化设备有限公司 | Plate spring type mechanical sealing device for floating-roof oil tank |
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| CN105460436A (en) * | 2015-12-29 | 2016-04-06 | 中国石油化工股份有限公司 | Sealing-pressure-self-adjusting-type outward floating roof tank and floating disc sealing device |
| CN105540081A (en) * | 2015-12-29 | 2016-05-04 | 中国石油化工股份有限公司 | Spring compensation type soft seal device for external floating-roof oil tank |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201580721U (en) * | 2009-10-28 | 2010-09-15 | 上海恒浮石化设备有限公司 | Plate spring type mechanical sealing device for floating-roof oil tank |
| CN202765617U (en) * | 2012-08-02 | 2013-03-06 | 连云港振兴集团石化设备制造有限公司 | Mechanical double-layer sealing device used for inner floating roof |
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| CN106005775A (en) | 2016-10-12 |
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