CN205891720U - Outer floating top storage tank secondary seal is with formula rubber slab connected through one's female relatives - Google Patents
Outer floating top storage tank secondary seal is with formula rubber slab connected through one's female relatives Download PDFInfo
- Publication number
- CN205891720U CN205891720U CN201620732816.8U CN201620732816U CN205891720U CN 205891720 U CN205891720 U CN 205891720U CN 201620732816 U CN201620732816 U CN 201620732816U CN 205891720 U CN205891720 U CN 205891720U
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- opotism
- plate body
- fixed plate
- rubber slab
- secondary seal
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Abstract
The utility model discloses an outer floating top storage tank secondary seal is with formula rubber slab connected through one's female relatives, including extension, portion connected through one's female relatives and fixed part, the fixed part comprises fixed plate body, preforming and stationary hump, fixed plate body connects the upper end extension, and portion connected through one's female relatives is connected to the fixed plate body lower extreme, fixed plate body side connection preforming and stationary hump, portion connected through one's female relatives is including plate body connected through one's female relatives and arch connected through one's female relatives, and plate body side connected through one's female relatives sets up a plurality of archs connected through one's female relatives, and it is adj. Tabular that the extension is the bar, and the vertical connection of extension is in fixed plate body's upper end, the preforming is arc plate shape, and the side on the upper portion of preforming is connected with fixed plate body's side, the lower part of preforming is near fixed plate body's side, the rubber slab is made by butadiene acrylonitrile rubber, butadiene acrylonitrile rubber's resistance value is 105 omega ~109 omega, and this rubber slab can also effectively be avoided firing the accident because of spark discharge arouses the storage tank conflagration between secondary seal metal components and the floating plate under the condition of ensureing to seal.
Description
Technical field
This utility model is related to a kind of rubber slab and in particular to a kind of External floating roof tank secondary seal opotism formula rubber
Plate.
Background technology
With the development of World Economics, petroleum consumption rapid development, various countries' crude stockpile based on large floating roof oil tank,
, typically in 60-100 rice, large floating roof oil tank is big due to floating plate area, and is directly exposed in air, and thunder disaster is bright for diameter
Aobvious increase.From 1972 so far, domestic occur larger oil tank to be struck by lightning nearly 30 of Fire explosion accident altogether, cause huge warp
Ji loss.When storage tank suffers from direct lightning strike or induced lightening, between floating plate and tank skin, larger potential difference can be produced it is easy to draw
Play flashing electric discharge between floating plate and tank skin, once combustible gas concentration reaches explosion limit herein, storage tank fire will certainly be caused
Calamity blast accident.Wherein, the hardware such as the bearing plate at storage tank secondary seal and fastening connection piece is near apart from tank skin, and exists
Metal tip, once being struck by lightning, easily producing disruptive spark electric discharge, there is thunderbolt potential safety hazard.As can be seen here, how effectively
Avoid the hardware of secondary seal to produce spark discharge with tank skin, be the effective handss preventing storage tank from lightning fire accident occurring
One of section.
External floating roof tank secondary seal is the set of device increasing on the basis of once sealing.Secondary seal is mainly floating
Plate edge mounting means, it is mainly made up of oil gas barrier film, bearing plate, rubber slab, conducting strip and fastening connection piece etc., can cover
Whole edge vapor phase space, can more effectively reduce oil and gas loss.Rubber slab passes through the fixedly connected part such as pressing plate, bolt and pressure-bearing
Plate is attached, and relies on elastic force to fit with tank skin.But, existing rubber slab thinner thickness, and it is shaped as l type it is impossible to ensure
The hardwares such as bearing plate, bolt, pressing plate and tank skin carry out effective electric insulation, therefore once being struck by lightning, easily cause
Flashing electric discharge between these hardware and tank skins, the safety of storage tank in serious harm.
Utility model content
The purpose of this utility model is to provide a kind of External floating roof tank secondary seal opotism formula rubber slab, this rubber slab
Moreover it is possible to be prevented effectively between secondary seal hardware and floating plate because spark discharge causes storage tank fire in the case of guaranteeing sealing
Calamity blast accident.
To achieve these goals, the technical solution of employing is this utility model:
A kind of External floating roof tank secondary seal opotism formula rubber slab, including extension, opotism portion and fixed part, fixed part
It is made up of fixed plate body, tabletting and fixed lobe, described fixed plate body upper end connects extension, fixed plate body lower end connects opotism
Portion, fixed plate body side connects tabletting and fixed lobe, and described opotism portion includes opotism plate body and opotism is raised, opotism plate body
It is raised that side connects multiple opotisms.
Preferably, described extension, fixed part and opotism portion are integrally formed, and described extension is in bar shaped tabular, described prolongs
Extending portion is vertically connected to the upper end of fixed plate body.
Preferably, the curved tabular of described tabletting, the side on the top of tabletting is connected with the side of fixed plate body, described pressure
The bottom of piece is against the side of fixed plate body.
Preferably, described fixed lobe position is in bar shaped tabular, and fixed lobe is connected laterally at the side of fixed plate body, described
Fixed lobe is located at the lower section of tabletting.
Preferably, described opotism is raised is in triangle tabular, and described opotism projection is provided with three, and three opotism projections are in sawtooth
Shape is uniformly connected to the side of opotism plate body, the raised lower left being located at fixed lobe of described opotism.
Preferably, described rubber slab is made up of nitrile rubber, and the resistance value of described nitrile rubber is 105ω～109ω.
The beneficial effects of the utility model are:
Above-mentioned rubber slab upper end extends downwardly the lower end with opotism portion for the composition, after rubber slab installation, rubber slab
Opotism can increase the creep age distance between canned paragraph and tank skin, effectively between the hardware of lifting secondary seal and tank skin
Electric insulation level, thus avoid between secondary seal hardware and floating plate because thunderbolt produces spark discharge.Rubber slab is fourth
Nitrile rubber, the resistance value of nitrile rubber is 105ω～109ω, this nitrile rubber has good oil resistivity, ageing-resistant, wear-resisting
Damage performance, there is certain elasticity and air-tightness, there are good insulating properties and can effectively discharge the electrostatic charge of accumulation
Prevent spark discharge from occurring.
Brief description
Fig. 1 is opotism formula rubber slab overall structure diagram.
Fig. 2 is opotism formula rubber slab and bearing plate fit structure schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in detail:
In conjunction with Fig. 1 and Fig. 2, a kind of External floating roof tank secondary seal opotism formula rubber slab, including extension 1, fixed part 2
With opotism portion 3, extension 1, fixed part 2 and opotism portion 3 are integrally formed.Described rubber slab is nitrile rubber, described nitrile rubber
Resistance value be 105ω～109ω, this nitrile rubber has good insulating properties, oil resistivity, ageing-resistant, mar proof
Energy, elasticity and air-tightness, and the electrostatic charge that can effectively discharge accumulation prevents spark discharge from occurring.
Fixed part 2 is made up of fixed plate body 21, tabletting 22 and fixed lobe 23, and fixed plate body 21, tabletting 22 and fixation are convex
Play 23 to be integrally formed, fixed plate body 21 upper end connects extension 1, fixed plate body 21 lower end connects opotism portion 3.Described extension 1
In bar shaped tabular, extension 1 is vertically connected to the upper end of fixed plate body 21.The side of fixed plate body 21 connects tabletting 22 and fixes
Raised 23, the curved tabular of described tabletting 22, the side on the top of tabletting 22 is connected with the side of fixed plate body 21, described tabletting
22 bottom is against the side of fixed plate body 21.There is the buffering of a strip between the bottom of tabletting 22 and fixed plate body 21
Groove.Described fixed lobe 23 bar shaped tabular, fixed lobe 23 is connected laterally at the side of fixed plate body 21, described fixed lobe 23
Lower section positioned at tabletting 22.
Described opotism portion 3 includes opotism plate body 31 and opotism projection 32, and the side setting of opotism plate body 31 connects multiple skirts
Band raised 32.Described opotism raised 32 is in triangle tabular, and opotism projection 32 of the present utility model is provided with three, three opotism projections
32 indentations are uniformly connected to the side of opotism plate body 31, and described opotism raised 32 is located at the lower left of fixed lobe 23.
When combination is installed, rubber slab coordinates installation, fixed lobe 23 and pressure-bearing with bearing plate 4 to above-mentioned opotism formula rubber slab
Plate 4 cooperation is installed, and now opotism portion 3 is located at the left of bearing plate 4, and the lower end of fixed lobe 23 is connected with the upper end of bearing plate 4,
Opotism projection 32 in the opotism portion 3 of rubber slab can increase the creep age distance between the bearing plate 4 of canned paragraph and tank skin, effectively
Electric insulation level between the hardware of lifting secondary seal and tank skin, thus avoid secondary seal hardware and floating plate
Between because thunderbolt produce spark discharge.
The part do not addressed in this utility model using or use for reference prior art can achieve.
Certainly, described above is not to restriction of the present utility model, and this utility model is also not limited to the example above,
Change, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model, also should
Belong to protection domain of the present utility model.
Claims (6)
1. a kind of External floating roof tank secondary seal with opotism formula rubber slab it is characterised in that including extension, opotism portion and fixation
Portion, fixed part is made up of fixed plate body, tabletting and fixed lobe, and described fixed plate body upper end connects extension, under fixed plate body
End connects opotism portion, and fixed plate body side connects tabletting and fixed lobe, and described opotism portion includes opotism plate body and opotism is raised,
It is raised that the side of opotism plate body connects multiple opotisms.
2. a kind of External floating roof tank secondary seal according to claim 1 with opotism formula rubber slab it is characterised in that described
Extension, fixed part and opotism portion are integrally formed, and described extension is in bar shaped tabular, and described extension is vertically connected to fixed plate
The upper end of body.
3. a kind of External floating roof tank secondary seal according to claim 1 with opotism formula rubber slab it is characterised in that described
The curved tabular of tabletting, the side on the top of tabletting is connected with the side of fixed plate body, and the bottom of described tabletting is against fixed plate
The side of body.
4. a kind of External floating roof tank secondary seal according to claim 1 with opotism formula rubber slab it is characterised in that described
Fixed lobe position is in bar shaped tabular, and fixed lobe is connected laterally at the side of fixed plate body, and described fixed lobe is located at tabletting
Lower section.
5. a kind of External floating roof tank secondary seal according to claim 1 with opotism formula rubber slab it is characterised in that described
Opotism is raised to be in triangle tabular, and described opotism projection is provided with three, and three opotism projection indentations are uniformly connected to opotism plate
The side of body, the raised lower left being located at fixed lobe of described opotism.
6. a kind of External floating roof tank secondary seal according to claim 1 with opotism formula rubber slab it is characterised in that described
Rubber slab is made up of nitrile rubber, and the resistance value of described nitrile rubber is 105ω～109ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620732816.8U CN205891720U (en) | 2016-07-12 | 2016-07-12 | Outer floating top storage tank secondary seal is with formula rubber slab connected through one's female relatives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620732816.8U CN205891720U (en) | 2016-07-12 | 2016-07-12 | Outer floating top storage tank secondary seal is with formula rubber slab connected through one's female relatives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205891720U true CN205891720U (en) | 2017-01-18 |
Family
ID=57772440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620732816.8U Active CN205891720U (en) | 2016-07-12 | 2016-07-12 | Outer floating top storage tank secondary seal is with formula rubber slab connected through one's female relatives |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205891720U (en) |
-
2016
- 2016-07-12 CN CN201620732816.8U patent/CN205891720U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |