CN108202934A - The lidstock device of storage tank - Google Patents
The lidstock device of storage tank Download PDFInfo
- Publication number
- CN108202934A CN108202934A CN201611169543.1A CN201611169543A CN108202934A CN 108202934 A CN108202934 A CN 108202934A CN 201611169543 A CN201611169543 A CN 201611169543A CN 108202934 A CN108202934 A CN 108202934A
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- CN
- China
- Prior art keywords
- ring
- sealing ring
- flexible sealing
- storage tank
- capping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B65D88/50—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle with resilient foam or stuffed seal
-
- 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
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention provides a kind of lidstock devices of storage tank, including the first seal assembly being arranged between the tank skin of the storage tank and the capping, first seal assembly is included with covering the hermetic bag being connected and the flexible sealing ring being contained in the hermetic bag, and there are squeezing actions between the flexible sealing ring and tank skin and between capping.In the preferred embodiments of the invention, the sealing device further includes the second seal assembly, the filling bag for accommodating fire-retardant particulate matter that second seal assembly is bonded the annular rigid bodies of the tank skin of the storage tank including lower edge and capping connection, upper edge and is connected on the medial surface of the rigid bodies.Invention particularly provides a kind of floating plate sealing devices of floating roof tank.Sealing device provided by the invention has the sealing performance improved, can also have the function of self-extinguishing.
Description
Technical field
The present invention relates to oil gas storage tank technical field of sealing technology, and in particular to a kind of lidstock device of storage tank.
Background technology
The volatile petroleums product such as crude oil, gasoline or kerosene is normally stored in storage tank, such as internal floating roof tank and outer floating
Push up storage tank.Oil gas product is inflammable and explosive product, therefore the seal operation of storage tank is even more important.Current sealing ring majority uses
Soft seal, minority are sealed using filling liquid.For existing many sealing rings, due to air-tightness deficiency, in use for some time,
There are gaps between sealing ring and tank skin, lead to oil and gas leakage.Floating roof tank encounters thunder because there are oil and gas leakages at sealing ring
It hits, Lighting-blast casualty easily occurs after open fire, sealing ring is caused to be burned out, form partly or wholly sealing ring fire.
Invention content
The present invention is intended to provide a kind of lidstock device of storage tank, including once sealing component and secondary seal component,
To reduce or eliminate the leakage of especially storage tank.Further, fire extinguishing is added in once sealing component and secondary seal component
Material realizes automatic fire-extinguishing function using automatic covering pasta.Therefore, it can reach raising using sealing device provided by the invention
The purpose of sealing hydrocarbons, moreover it is possible to further achieve the purpose that self-extinguishing.
Installation method and application the present invention also provides the sealing device.
Purpose to realize the present invention, present invention firstly provides a kind of lidstock device for storage tank, including setting
The first seal assembly between the tank skin of the storage tank and the capping is put, first seal assembly includes being connected with capping
Hermetic bag and the flexible sealing ring that is contained in the hermetic bag, between the flexible sealing ring and tank skin and the flexibility
There are squeezing actions between sealing ring and capping.
So-called " flexibility " be with rigidity in contrast.According to sealing device provided by the invention, pass through flexible sealing ring pair
Storage tank shell and capping squeezing action and play the role of sealing.Therefore the sealing ring for playing sealing function is flexible, and is had
There are appropriate elasticity and compressibility.
Preferably, the flexible sealing ring is foam ring.
The quantity of the flexible sealing ring can be one or more.To increase to the active force of storage tank sum, it is preferable to use more
A flexible sealing ring.
Preferably, when the flexible sealing ring number is 2 or more, multiple flexible sealing rings are arranged arrangement.
When the flexible sealing ring number is 3 or more, the flexible sealing ring of preferably 3 or more is arranged arrangement and connects
Connection, but the connection should not influence the elastic deformation (not influencing its flexible performance in other words) of each flexible sealing ring in itself.
It is highly preferred that the flexible sealing ring number is 2.
Preferably, Compliant pressure ring is additionally provided in the hermetic bag, the Compliant pressure ring squash type is arranged on institute
It states on flexible sealing ring.
Preferably, the Compliant pressure ring includes annular filling baggy fabric and the compression being filled in the annular filling baggy fabric
Particulate matter.Preferably, the loading (volume) of the packed particles object in filling baggy fabric is the 70-95% of filling baggy fabric volume, more preferably
75-85%.
Preferably, the packed particles object being filled in the annular filling baggy fabric is fire-retardant particulate matter.
In accordance with the present invention it is preferred that the quantity of the flexible sealing ring is two, the quantity of the Compliant pressure ring is one
It is a, and the Compliant pressure ring is in contact with two flexible sealing rings.In the case, a Compliant pressure ring and two
A flexible sealing ring forms the construction of class " product " font.
It is further preferred that the sectional dimension of single flexible sealing ring is the gap size between capping and the tank skin of storage tank
1/2 times to 9/10 times, preferably 3/5 times to 4/5 times.The sectional dimension of the single flexible sealing ring refers to flexible sealing ring
Longest distance between two points in longitudinal section.For example, when the section of flexible sealing ring is circle, the sectional dimension refers to round cut
The diameter in face, when the section of flexible sealing ring is ellipse, the sectional dimension refers to the major axis dimension of elliptic cross-section.Institute
State the gap size between storage tank be tank skin and between spacing.
It is further preferred that the sectional dimension of the Compliant pressure ring is 1 times of the sectional dimension of single flexible sealing ring
To 2 times, preferably greater than 1.2 times are less than 2 times.The sectional dimension of the Compliant pressure ring refers in the longitudinal section of Compliant pressure ring most
Long distance between two points.For example, when the section of Compliant pressure ring is circle, the sectional dimension refers to the diameter of circular cross-section,
When the section of Compliant pressure ring is ellipse, the sectional dimension refers to the major axis dimension of elliptic cross-section.
Preferably, the Compliant pressure ring and/or the flexible sealing ring are circular ring shape or oval ring.It is it is preferred that described soft
It is tangent to each other between property compression ring and the flexible sealing ring.
Preferably, the hermetic bag is soft seal bag, and material is preferably nitrile rubber, plays and strengthens sealing and oil resistant
Effect.
In accordance with the present invention it is preferred that described device further includes the second sealing group above first seal assembly
Part, second seal assembly include the annular rigid bodies that lower edge is bonded the tank skin of the storage tank with capping connection, upper edge, with
And it is connected to the filling bag for accommodating fire-retardant particulate matter on the medial surface of the rigid bodies.
The lower edge of rigid bodies refers to its edge close to storage tank pasta, and upper edge refers to its edge far from storage tank pasta.
Preferably, the lower edge of the filling bag is connect with the lower edge of the rigid bodies, the upper edge of the filling bag
It is connect with the upper edge of the rigid bodies.
The lower edge of filling bag refers to its edge close to storage tank pasta, and upper edge refers to its edge far from storage tank pasta.
According to the present invention, the filling bag is preferably made of oil resistance gas material, such as oil resistance air film.The oil resistance gas material
Material is the material for referring to prevent oil or gas from penetrating, and is referred to as preventing permeable gas permeable material.For the material, the present invention does not have
Especially limitation, as long as anti-permeable permeation functions can be played and do not influence to fill release of the bag to fire-retardant particulate matter when on fire.
Preferably, the perimeter of section of the filling bag is 3-6 times of the rigid bodies width.Generally, it will fill out
The upper lower edge for filling bag is pulled open when making filling bag straight, and the distance between upper lower edge is the distance between lower edge in rigid bodies
1.5-3 times.
Preferably, the loading (volume) for filling the fire-retardant particulate matter in bag is the 60-90% for filling bag volume, more
It is preferred that 70-85%.
Preferably, ring packing scraper plate is connected at the upper edge of annular rigid bodies.The sealing scraper is preferably rubber
Glue scraper plate.Gap between the sealing scraper sealing metal support plate and tank skin prevents oil gas from being overflowed at the gap, meanwhile,
The scraper plate can also remove the Residual oil on tank skin.Scraper plate can be connect by modes such as bolts with the rigid bodies.
Preferably, described device further include be located in the capping, the support plate below first seal assembly.
Preferably, the lower edge of rigid bodies is fixed on the top edge of capping, and the hermetic bag of once sealing component also connects
In the top edge of capping.
According to the present invention, the storage tank is preferably External floating roof tank or internal floating roof tank, and the capping is floating plate.Further
Ground, the annular rigid bodies are preferably annular metal sheet.
The fire-retardant particulate matter being used in the present invention can be fire proofing particulate matter commonly used in the art, preferably gently
The fire-retardant particulate matter of matter, density are less than oil density.It is closed for example, the fire-retardant particulate matter can be flame retardant rubber particle, lightweight
At least one of hole expanded perlite and hollow thin-wall stainless steel ball etc..
The present invention also provides the installation method of the lidstock device according to storage tank provided by the invention, including：
The first end of the hermetic bag of first seal assembly is fixed in capping, flexible sealing ring is put into hermetic bag
In, the Compliant pressure ring filled with packed particles object is placed on flexible sealing ring top, then consolidates the second end of hermetic bag
It is scheduled in capping, forms the first seal assembly；
The lower edge of rigid bodies and the lower edge of filling bag are fixed on capping top edge, the upper edge for filling bag is consolidated
Due to the upper edge of rigid bodies, then sealing scraper is fixed on to the upper edge of rigid bodies, forms the second seal assembly, wherein,
The rigid bodies are contacted by sealing scraper with the tank skin of the storage tank.
Preferably, pass through the stickiness between the bolt adjustment rigid bodies in capping and tank skin, then fastening installation.
Non-exhaustively, outstanding advantage of the invention includes following aspect.
1st, strengthen sealing performance.The Compliant pressure ring that packed particles object is filled in first seal assembly is made in its own gravity
Under, flexible sealing ring is made to increase the pressuring action of tank skin and capping, improves the sealing performance of sealing ring.Further,
The filling bag of fire-retardant particle is filled in second seal assembly under self gravitation effect, is made between rigid bodies and tank skin
Adhesive force is strengthened, and increases sealing process.It is provided by the invention close under the mutual cooperation effect of first, second seal assembly
Seal apparatus has the sealing performance of enhancing.
2nd, there is automatic fire-extinguishing function.When the Compliant pressure ring of the first seal assembly is filled with fire-retardant particulate matter, sending out
Under raw fire condition, fire-retardant particle can cover pasta, play fire-extinguishing function concurrently.Filling out for fire-retardant particle is filled in second seal assembly
Fill the effect that bag further enhances self-extinguishing.
3rd, simple in structure, simple installation.
Description of the drawings
Fig. 1 is the structure diagram according to the lidstock device of storage tank provided by the invention.
The second seal assemblies of 20-；The first seal assemblies of 30-；1- sealing scrapers；2- rigid bodies；In 21- rigid bodies
Edge；22- rigid bodies lower edges；The fire-retardant particulate matters of 3-；The filling bag of the second seal assemblies of 4-；The filling of the first seal assemblies of 5-
Bag；6- flexible sealing rings；7- hermetic bags；8- storage tank shells；9- is covered；10- support plates.
Wherein, attached drawing is only one of them illustrative schematic diagram of the sealing device of the present invention, not according to reality
Ratio draw.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1, the first seal assembly 30 is included according to the lidstock device of storage tank provided by the invention, in storage
In gap between tank tank skin 8 and capping 9.First seal assembly 30 includes the hermetic bag 7 being connected with capping 9 and is contained in
Flexible sealing ring 6 in the hermetic bag 7, between the flexible sealing ring 6 and tank skin 8 and the flexible sealing ring 6 is with sealing
There are squeezing actions between lid 9.
It is all inevitably needed crude oil, gasoline or coal during oil-gas mining, processing, application, storage and sale
The receiving of the volatile petroleums product such as oil is stored in storage tank.For inflammable explosive article, the leakproofness of storage tank is of crucial importance.Example
As the problem of how improving the leakproofness between storage tank shell and capping be usually faced with.The sealing device provided by the invention
By the first seal assembly 30 set between storage tank 8 and capping 9, the first seal assembly 30 is set as including hermetic bag 7
With the flexible sealing ring 6 being contained in the hermetic bag 7, and make between the flexible sealing ring 6 and tank skin 8 and the flexibility
Between sealing ring 6 and capping 9 sealing performance of sealing device is realized there are squeezing action.
Flexible sealing ring 6 have certain flexibility, with will pass through a small amount of deformation be compressed in storage tank 8 and capping 9 it
Between gap in, with reference to the soft seal function of hermetic bag 7, there is opposing compression effect to storage tank 8 and capping 9, it is close so as to play
Envelope acts on.
The quantity of the flexible sealing ring 6 can be one or more.Be increase to the active force of storage tank sum, it is preferable to use
Multiple flexible sealing rings.
In certain specific embodiments of the invention, the number of the flexible sealing ring 6 is 2 or more, multiple flexibilities
Sealing ring is arranged arrangement.There are extruding forces between the multiple flexible sealing rings being arranged, and transmit the force to storage tank and the capping of both sides,
So as to be squeezed storage tank and capping, and then sealing is formed in gap.
Further, when the number of the flexible sealing ring 6 is 3 or more, the flexible sealing ring 6 of preferably 3 or more
It is arranged and arranges and be connected in series with, but the connection should not influence each elastic deformation of of flexible sealing ring 6 itself and (not influence in other words
Its flexible performance).By being connected in series with so that the relative position between sealing ring 6 is relatively fixed, and is floated in capping 9
Or since external force causes when tank system shakes, sealing ring 6 still is able to firmly squeeze tank skin 8 and capping 9,
Without due to sealing ring 6 by burst factor influenced and suddenly change relative position cause sealing fail happen.
In some currently preferred embodiments of the present invention, as shown in Figure 1, the number of the flexible sealing ring 6 is 2.2 soft
Property sealing ring 6 can in the case where not needing to be mutually permanently connected also can more firmly mutually squeeze be present in storage tank 8
In gap between capping 9.
In a preferred embodiment of the invention, Compliant pressure ring 5, the flexibility are additionally provided in the hermetic bag 7
5 squash type of compression ring is arranged on the flexible sealing ring 6.The effect of the Compliant pressure ring 5 is to utilize the gravity of itself
The active force that the flexible sealing ring 6 compresses is given, so that Compliant pressure ring 5 has tank skin 8 and capping 9 more powerful squeeze
Pressure acts on, so as to increase the leakproofness in the gap between tank skin 8 and capping 9.The number of Compliant pressure ring 5 can also be 1 or
It is multiple.
In some preferred embodiments of the present invention, the Compliant pressure ring 5 includes annular filling baggy fabric and is filled in
Packed particles object (as shown in Figure 1) in the annular filling baggy fabric.
In some preferred embodiments of the present invention, the loading (volume) of the packed particles object in filling baggy fabric is filling
The 70-95%, more preferable 75-85% of bag volume.
Compression ring 5 is formed in the form of filling baggy fabric and filling packed particles object so that compression ring 5 has good " soft
Property ", it can come to change the form of itself microly with the variation of variation or the capping of storage tank pasta, so as to be conducive to first
The stability of seal assembly especially generates better pressuring action to flexible sealing ring 6.
In a preferred embodiment of the invention, the packed particles object being filled in the annular filling baggy fabric is fire-retardant
Particulate matter.In the case, Compliant pressure ring 5 not only acts as the effect for compressing flexible sealing ring 6, while also occurs once
Play the role of self-extinguishing in the case of fire.When a fire, the fire-retardant particulate matter in filling baggy fabric is hung down, and fire is produced
While effect is put out in life, fire-retardant particulate matter has thoroughly prevented burning away for oil gas due to Landfill covering pasta.
In a preferred embodiment of the invention, it is described as shown in Figure 1, the quantity of the flexible sealing ring 6 is two
The quantity of Compliant pressure ring 5 is one, and the Compliant pressure ring 5 is in contact with two flexible sealing rings 6.In this feelings
Under condition, the construction of a Compliant pressure ring 5 and two composition class " product " fonts of flexible sealing rings 6.The relative position of three rings can
The automatic fine tuning with the variation with variation or the capping of storage tank pasta.The construction of class " product " font is a kind of relative securement
Triangular configuration.Therefore this construction that a Compliant pressure ring 5 is formed with two flexible sealing rings 6 has once sealing component
Flexible and firm sealing function.
In some preferred embodiments of the present invention, the sectional dimension of single flexible sealing ring 6 is capping and storage tank
1/2 times to 9/10 times, preferably 3/5 times to 4/5 times of gap size between tank skin.
In some preferred embodiments of the present invention, the sectional dimension of the Compliant pressure ring 5 is sealed for single flexible
1 times to 2 times of the sectional dimension of ring 6, preferably greater than 1.2 times are less than 2 times.
In some currently preferred embodiments of the present invention, the Compliant pressure ring 5 and/or the flexible sealing ring 6 are annulus
Shape (as shown in Figure 1) or oval ring.It is preferred that it is tangent to each other between the Compliant pressure ring 5 and the flexible sealing ring 6, such as scheme
Shown in 1.The Compliant pressure ring 5 and flexible sealing ring 6 of circular ring shape or oval ring allow them to send out in practical application
Slight change between mutual alignment adaptively occurs for raw any slight variations, but still keep closely mutually squeezing
Or the interactively compressed, not only sealing function is made not to be deteriorated with the variation of environment, instead due to Compliant pressure ring 5 and soft
The spontaneous adjustment of property sealing ring 6 and become stronger.
In the preferred embodiment of the present invention, the quantity of the flexible sealing ring 6 is two, the flexible pressure
The quantity of tight ring 5 is one；The flexible sealing ring 6 and the Compliant pressure ring 5 are circular ring shape or oval ring；Single flexible
The sectional dimension of sealing ring 6 is 1/2 times to 9/10 times, preferably 3/5 times of the gap size between capping 9 and the tank skin 8 of storage tank
To 4/5 times；The sectional dimension of the Compliant pressure ring 5 is 1 times to 2 times of the sectional dimension of single flexible sealing ring 6.One side
Face, the compression ring 5 being located above are applied with the sealing ring 6 mutually squeezed downward power using its own gravity, and a part is offset
Oil gas is applied to the power of sealing ring 6 from below, and another part is then converted into two compression rings 6 to storage tank 8 and the pressure of capping 9
Power.On the other hand, oil gas is applied to the power part of sealing ring by the curved surfaces of of sealing ring 6 itself from below, it is outstanding two
Curved surface area near the contact surface of sealing ring is converted into the extruding force to storage tank and capping.Therefore, it is this to be configured to
Generate very firm sealing function.
In a preferred embodiment of the invention, the hermetic bag 7 is soft seal bag, and material is nitrile rubber, is played
Oil resistant and the effect for strengthening sealing.The hermetic bag is other than it can accommodate flexible sealing ring, itself is also in flexible sealing ring to storage
Enhanced sealing performance under tank tank skin and the squeezing action of capping.
In the present invention, by multiple flexible sealing rings 6 are set and squash type be placed on shown multiple flexible sealing rings 6 it
On one or more Compliant pressure rings 5, increase storage tank shell 8 and capping 9 between leakproofness.
According to the preferred embodiment of the present invention, described device further includes above first seal assembly 30
Two seal assemblies 20, second seal assembly 20 include it is lower along 22 with cover 9 connect, upper edge 21 is bonded the tank skin of the storage tank
8 annular rigid bodies 2 and the filling bag for accommodating fire-retardant particulate matter 3 being connected on the medial surface of the rigid bodies 2
Bag 4.
On the basis of the first seal assembly 30 plays main sealing function, increase the second sealing group as noted earlier
Part 20 further increases leakproofness guarantee.Meanwhile it is connected on the medial surface of rigid bodies 2 and (is connected under use state
The lower section of rigid bodies 2) filling bag being bonded between rigid bodies 2 and storage tank shell 8 is made more to step up using the gravity of itself
It is close, so as to increase the sealing effect in the gap between tank skin 8 and capping 9 of rigid bodies 2.Further, filling bag 4 fills
There is fire-retardant particulate matter 3, under the fortuitous event that fire occurs, fire-retardant particulate matter 3 is trickled down, and puts out flare, and Landfill covering
On storage tank pasta (not shown), the further on fire of oil gas is prevented, so further enhance oneself of sealing device
Fire-extinguishing function concurrently.
In some currently preferred embodiments of the present invention, the lower edge for filling bag 4 is lower along 22 with the rigid bodies 2
Connection, the upper edge of the filling bag 4 are connect with the upper edge 21 of the rigid bodies 2.This connection mode is easily installed use,
And it connect, makes firm as being bonded with tank skin 8 due to filling upper edge 21 of the upper edge of bag 4 directly with the rigid bodies 2
Property 2 upper edge of main body being stressed directly a little as filling bag 4, so as to which the gravity of filling bag 4 be made to be converted into the maximum extent pair
The downward pulling force of rigid bodies 2, and then rigid bodies is made more closely to be bonded with tank skin 8, enhance secondary seal component 20
Sealing process.
According to the preferred embodiment of the present invention, the filling bag 4 is preferably by oil resistance gas material, such as oil resistance air film system
Into.Bag 4 is filled in addition to playing the role of providing rigid bodies 2 downward pulling force, and accommodate outside fire-retardant particulate matter 3,
The effect for obstructing oil gas is also played, enhances the oil gas leakage preventing performance of sealing device.
In certain specific embodiments of the invention, the perimeter of section of the filling bag 4 is that the rigid bodies 2 are wide
3-6 times of degree.That is, by fill bag 4 upper lower edge pull open make filling bag straight when, fill bag 4 on lower edge it
Between distance be 1.5-3 times of the distance between lower edge in rigid bodies 2.
In certain specific embodiments of the invention, the loading (volume) for filling the fire-retardant particulate matter 3 in bag 4 is
Fill the 60-90%, more preferable 70-85% of 4 volume of bag.
In some currently preferred embodiments of the present invention, at the upper edge 21 of annular rigid bodies 2 being connected with ring packing scrapes
Plate 1 (as shown in Figure 1), the purpose is to the gaps between sealing metal support plate and tank skin, prevent oil gas from being overflowed at the gap,
Meanwhile the scraper plate can also remove the Residual oil on tank skin.The sealing scraper 1 is preferably rubber flap.
In some currently preferred embodiments of the present invention, described device, which further includes, to be located in the capping 9, positioned at described first
The support plate 10 (as shown in Figure 1) of 30 lower section of seal assembly.
In some currently preferred embodiments of the present invention, as shown in Figure 1, the lower of rigid bodies 2 is fixed on the upper of capping 9 along 22
Portion edge, the hermetic bag 7 of the first seal assembly are also connected to the top edge of capping 9.
In the concrete application of sealing device provided by the invention, the storage tank be External floating roof tank or internal floating roof tank,
The capping 9 is floating plate.External floating roof tank or internal floating roof tank are the common storage tanks for storing oil product.It is provided according to the present invention
The especially suitable floating plate sealing device for doing External floating roof tank or internal floating roof tank of sealing device.
In certain specific embodiments of the invention, the annular rigid bodies are annular metal sheet or metal branch
Fagging.
According to the present invention, used fire-retardant particulate matter 3 can be fire proofing particulate matter commonly used in the art, preferably
Light flame-retardant particulate matter, in general its density is less than oil density.Specifically, fire proofing particulate matter 3 can be for example selected from
Flame retardant rubber particle, light closed hole expanded perlite or hollow thin-wall stainless steel ball etc..
The illustrative specific installation method of one of lidstock device provided by the invention, includes the following steps：
The first end of the hermetic bag 7 of first seal assembly 20 is fixed in capping 9, flexible sealing ring 6 is put into close
In envelope 7, the Compliant pressure ring 5 filled with packed particles object is placed on 6 top of flexible sealing ring, then by the of hermetic bag 7
Two ends are fixed in capping 9, form the first seal assembly 20.
Lower by rigid bodies 2 is fixed on filling the lower edge of bag 4 in capping 9 along 22, and the upper edge for filling bag 4 is consolidated
Due to the upper edge 21 of rigid bodies 2, then sealing scraper 1 by bolt is fixed on to the upper edge of rigid bodies 2, it is close to form second
Sealing assembly 30, wherein, rigid bodies 2 are contacted with the tank skin 8 of storage tank by the sealing scraper 1 and form sealing function.
Preferably, by the stickiness between the bolt adjustment rigid bodies 2 in capping 9 and tank skin 8, then fastening is pacified
Dress.
The present invention is further explained and illustrated by an illustrative specific embodiment again below.
Illustrate the structure and applicable cases according to sealing device provided by the invention by taking 50,000 vertical floating roof tanks as an example.50000 is vertical
Floating roof tank diameter 60m, sealing ring length are 188.4m, and the spacing of floating plate and tank skin is 200mm, the second seal assembly it is firm
Property main body be metal profile, length is 900mm.
The first seal assembly is built first.Compliant pressure ring is circular ring shape, and quantity is 1, and the diameter of longitudinal section is
160mm, perimeter are 540mm.The flame retardant rubber particle of 80% volume of filling in Compliant pressure ring.Flexible sealing ring is longitudinal section
The circular ring shape foam ring of a diameter of 150mm, quantity are 2.Hermetic bag selects soft seal bag.During installation, first by hermetic bag
One end is fixed on floating plate top edge, then two foam rings are put into hermetic bag, and applying certain dynamics makes two foam ring phases
It mutually squeezes, so that two foam rings have squeezing action to storage tank shell and floating plate, so as to form sealing function.Again in foam ring
Top is put into the Compliant pressure ring filled with flame retardant rubber particle, forms the arrangement of class " product " font.Then by hermetic bag
The other end be fixed on floating plate top edge, complete the installation of the first seal assembly.The hermetic bag of first seal assembly, which is located at, to be set
It puts above the support plate on floating plate.
Then the second seal assembly is built.Length under filling bag straight condition below metal profile between upper lower edge
It spends for 2000mm.Light filling flame retardant rubber particle in bag is filled, loading is fill bag volume 85%.During installation,
The lower edge of metal profile and the lower edge of filling bag are fixed on floating plate top edge, the upper edge for filling bag is fixed on gold
Belong to the upper edge of support plate, be then fixed together again with rubber flap, filling bag be clipped in rubber flap and metal profile it
Between.By the screw bolt reinforcing on floating plate top, the adhesive force of metal profile is adjusted, fastening installation is realized, completes the second seal assembly
Installation.
After fire occurs for sealing device bottom, flame can be by the compression ring of hermetic bag and the first seal assembly, second close
The filling bag of sealing assembly is burnt, and light flame-retardant particulate matter can be trickled down automatically to sealing device, the shape on the pasta of storage tank
Into fire-retardant granular coating.Under normal circumstances, the loading of fire-retardant particulate matter can meet its it is all unrestrained after, formed on pasta
The granular coating of 20mm or so, plays the role of self-extinguishing.
According to the lidstock device of storage tank provided by the invention, oil and gas leakage is reduce or eliminated.In addition, by
One and/or the second fire extinguishing material of setting in seal assembly, realize fire extinguishing using automatic covering pasta, reach improve sealing hydrocarbons and
The purpose of self-extinguishing.
Although the present invention has been described in detail, it will be understood by those skilled in the art that in spirit and scope of the invention
Modification will be apparent.However, it should be understood that the various aspects of the invention recorded, different specific embodiments
Each section and the various features enumerated can be combined or all or part of exchange.In above-mentioned each specific embodiment, that
A little embodiments with reference to another embodiment can be combined suitably with other embodiment, this is will be by this field skill
Art personnel are to understand.In addition, it will be understood to those of skill in the art that the description of front is only exemplary mode, not purport
In the limitation present invention.
Claims (12)
1. the lidstock device of storage tank, including the first sealing group being arranged between the tank skin of the storage tank and the capping
Part, first seal assembly are included with covering the hermetic bag being connected and the flexible sealing ring being contained in the hermetic bag, institute
It states between flexible sealing ring and tank skin and there are squeezing actions between capping.
2. the apparatus according to claim 1, which is characterized in that Compliant pressure ring, institute are additionally provided in the hermetic bag
Compliant pressure ring squash type is stated to be arranged on the flexible sealing ring.
3. the apparatus of claim 2, which is characterized in that the Compliant pressure ring includes annular filling baggy fabric and fills out
Fill the packed particles object in the annular filling baggy fabric；It is preferred that the packed particles object is fire-retardant particulate matter.
4. the device according to Claims 2 or 3, which is characterized in that the quantity of the flexible sealing ring is two, described soft
Property compression ring quantity for one, and the Compliant pressure ring is in contact with two flexible sealing rings.
5. device according to claim 4, which is characterized in that the flexible sealing ring and the Compliant pressure ring are annulus
Shape or oval ring, and 1/2 that the sectional dimension of the flexible sealing ring is the gap size between capping and the tank skin of storage tank
Again to 9/10 times, preferably 3/5 times to 4/5 times, the sectional dimension of the Compliant pressure ring is the section ruler of single flexible sealing ring
Very little 1 times to 2 times.
6. the device according to any one of claim 1 to 5, which is characterized in that described device is further included in described
The second seal assembly above one seal assembly,
Second seal assembly includes the annular rigid bodies that lower edge is bonded the tank skin of the storage tank with capping connection, upper edge,
And it is connected to the filling bag for accommodating fire-retardant particulate matter on the medial surface of the rigid bodies.
7. device according to claim 6, which is characterized in that under the lower edge and the rigid bodies of the filling bag
Along connection, the upper edge of the filling bag is connect with the upper edge of the rigid bodies.
8. the device described according to claim 6 or 7, which is characterized in that be connected with annular at the upper edge of annular rigid bodies
Sealing scraper.
9. the device described according to claim 6 or 7, which is characterized in that the filling bag is made of oil resistance gas material；It is preferred that
The perimeter of section of the filling bag is 3-6 times of the rigid bodies width.
10. the device according to any one of claim 1 to 9, which is characterized in that described device, which further includes, is located at the envelope
It covers, the support plate below first seal assembly.
11. the device according to any one of claim 1 to 10, which is characterized in that the storage tank for External floating roof tank or
Internal floating roof tank, the capping are floating plate.
12. the device according to any one of claim 1 to 10, which is characterized in that the flexible sealing ring is foam ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611169543.1A CN108202934B (en) | 2016-12-16 | 2016-12-16 | The lidstock device of storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611169543.1A CN108202934B (en) | 2016-12-16 | 2016-12-16 | The lidstock device of storage tank |
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| Publication Number | Publication Date |
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| CN108202934A true CN108202934A (en) | 2018-06-26 |
| CN108202934B CN108202934B (en) | 2019-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611169543.1A Active CN108202934B (en) | 2016-12-16 | 2016-12-16 | The lidstock device of storage tank |
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| CN (1) | CN108202934B (en) |
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| CN110027809A (en) * | 2019-03-28 | 2019-07-19 | 江苏德大石化科技有限公司 | A kind of rim space seal modules of storage tank |
| CN111186648A (en) * | 2018-11-14 | 2020-05-22 | 中国石油化工股份有限公司 | Installation method of internal oil-gas space eliminating device for edge sealing of external floating roof storage tank |
| CN111186646A (en) * | 2018-11-14 | 2020-05-22 | 中国石油化工股份有限公司 | Device for eliminating oil-gas space inside edge seal of external floating roof storage tank |
| CN113212992A (en) * | 2020-01-21 | 2021-08-06 | 璟铠企业有限公司 | Annular sealing device of inner floating roof |
| CN113384833A (en) * | 2020-03-11 | 2021-09-14 | 中国石油化工股份有限公司 | Fire prevention and control and fire suppression method for petrochemical storage tank |
| CN113928740A (en) * | 2021-10-19 | 2022-01-14 | 威特龙消防安全集团股份公司 | Inflatable oil-free air sealing structure of external floating roof oil tank |
| CN116477225A (en) * | 2023-01-30 | 2023-07-25 | 安徽美祥实业有限公司 | Flame-retardant type primary sealing device and intelligent working method thereof |
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| CN113928740A (en) * | 2021-10-19 | 2022-01-14 | 威特龙消防安全集团股份公司 | Inflatable oil-free air sealing structure of external floating roof oil tank |
| CN116477225A (en) * | 2023-01-30 | 2023-07-25 | 安徽美祥实业有限公司 | Flame-retardant type primary sealing device and intelligent working method thereof |
| CN116477225B (en) * | 2023-01-30 | 2023-10-24 | 安徽美祥实业有限公司 | Flame-retardant type primary sealing device and intelligent working method thereof |
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