CN204226645U - Combined type soft seal device - Google Patents
Combined type soft seal device Download PDFInfo
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- CN204226645U CN204226645U CN201420654202.3U CN201420654202U CN204226645U CN 204226645 U CN204226645 U CN 204226645U CN 201420654202 U CN201420654202 U CN 201420654202U CN 204226645 U CN204226645 U CN 204226645U
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- rubber bag
- elastic foam
- topping
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- floating plate
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Abstract
The utility model relates to a kind of combined type soft seal device, mainly solves the problem that in prior art, sealing effect is poor.The utility model is by adopting a kind of combined type soft seal device, comprise elastic foam filled rubber bag, topping up rubber bag, elastic foam and stationary platen, elastic foam filled rubber bag is positioned in the space between storage tank shell and floating plate, its one side contacted with tank skin is hackly surface, topping up rubber bag and elastic foam is filled in elastic foam filled rubber bag, the technological scheme that elastic foam is at least filled in the space between topping up rubber bag and storage tank shell solves the problems referred to above preferably, can be used in the sealing of floating roof tank.
Description
Technical field
The utility model relates to a kind of combined type soft seal device.
Background technique
At present, sealing majority between External floating roof tank floating plate and tank skin adopts that elastic foam is filled with a sealing, mechanical seal or topping up seal, these seal arrangements are in operation because affecting by factors such as tank skin ovality, packing deformation failures, being difficult to remains valid with tank skin seals, cause oil and gas leakage, become the important hidden danger of floating roof seal curtain blast accident.
CN201210431694.5 relates to a kind of compound sealing device being applied to internal floating roof tank, greatly can improve sealing effect, the corrosion products of tank skin attachment can be removed again in time, thus greatly reduce the risk of the blast accident that the spontaneous combustion of tank Nei Fashengyin corrosion products causes.
A large amount of liquid has been filled in topping up seal arrangement inside, is generally water, diesel oil etc., and this installation weight is very large, higher to the loading demands of floating plate, and once leak, often causes oil pollution.The elastic foam inside that is filled with a sealing is filled with three core foams, and this kind of polyurethane foam elasticity is after standing repeatedly to extrude, and elasticity reduces greatly, can not ensure and the fitting tightly of tank skin, define oil and gas leakage space.Mechanical seal device can ensure and the fitting tightly of tank skin, but its inside exists many places metal connecting piece, lightning current spark phenomenon in seal ring easily occurs when being struck by lightning, causes seal ring to burn.
Elastic foam is filled with a sealing after being subject to tank skin extruding, and foamed elastic reduces greatly, and there is larger gap between tank skin; And topping up seals because seal arrangement weight is larger, tank skin distortion or floating plate and tank skin spacing larger time, its sealing package hanging portion weight is larger, to sealing package, there is very large stretching action, easily cause sealing package to rupture, in addition, be subject to the friction of tank skin weld seam, the partial rubber band contacted with tank skin easily leaks, and causes whole topping up seal failure.In addition, due to currently used sealing package and tank skin area of contact limited, sealing package easily and between tank skin forms gap.
Model utility content
Technical problem to be solved in the utility model is the problem that in prior art, sealing effect is poor, provides a kind of new combined type soft seal device.This device is used for, in the sealing of floating roof tank, having the good advantage of sealing effect.
For solving the problem, the technical solution adopted in the utility model is as follows: a kind of combined type soft seal device, comprise elastic foam filled rubber bag, topping up rubber bag, elastic foam and stationary platen, elastic foam filled rubber bag is positioned in the space between storage tank shell and floating plate, its one side contacted with tank skin is hackly surface, topping up rubber bag and elastic foam is filled in elastic foam filled rubber bag, elastic foam is at least filled in the space between topping up rubber bag and storage tank shell, topping up rubber bag is provided with implementation of port, elastic foam filled rubber pocket portions stationary platen near floating plate side is fixedly fitted on floating plate, elastic foam filled rubber bag upper opening is fixed by bolts in floating plate upper edge panel, bracket is provided with bottom floating plate, described elastic foam filled rubber bag is positioned on described bracket.
In technique scheme, preferably, described topping up rubber bag is strip, and from top to bottom through whole elastic foam filled rubber bag, the liquid level in topping up rubber bag is 60 ~ 70%.
In technique scheme, preferably, described elastic foam is filled in the space between topping up rubber bag and storage tank shell and between topping up rubber bag and floating plate.
In technique scheme, preferably, described elastic foam filled rubber bag height is consistent with floating plate top height, and the space between whole floating plate and tank skin filled by whole elastic foam filled rubber bag.
In technique scheme, preferably, described elastic foam filled rubber bag adopts thickness to be the rubber material of 1 ~ 4mm, and topping up rubber bag adopts thickness to be the rubber material of 1 ~ 2mm.
In technique scheme, preferably, elastic foam material longitudinally single installation.
This patent adopts composite structure; elastic foam is filled with a sealing and topping up sealing group be fitted together; play the advantage of these two kinds sealings; simultaneously; extend the length of rubber bag; to increase the area of contact of rubber bag and tank skin; soft seal effective sealing can be ensured; overcome the problem that the elastic failure of elastic foam and topping up sealing package break; the elastic foam in outside plays a protective role to the topping up sealing package in interlayer; the integral, flexible of soft seal is very low with the prolongation loss amount of working time, achieves good technique effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of device described in the utility model.
In Fig. 1,1 is storage tank shell; 2 is floating plate; 3 is elastic foam filled rubber bag; 4 is bolt; 5 is stationary platen; 6 is bracket; 7 is topping up rubber bag; 8 is the serrated appearance face of elastic foam filled rubber bag; 9 is implementation of port; 10 is elastic foam.
Below by embodiment, the utility model is further elaborated, but is not limited only to the present embodiment.
Embodiment
[embodiment 1]
This patent employing combined type soft sealing structure, is filled with a sealing elastic foam and topping up sealing group is fitted together, and plays the advantages of these two kinds sealings, meanwhile, extends the length of rubber bag, to increase the area of contact of rubber bag and tank skin.
As shown in Figure 1, this soft seal device is made up of three parts, i.e. elastic foam filled rubber bag, topping up rubber bag and elastic foam, also has the annexes such as the spout of rubber bag fixed plate, topping up rubber bag in addition.
Topping up rubber bag is placed in the neutral position of whole device, both sides or one-sidedly arrange elastic foam.One of elastic foam filling is placed on the side of contiguous tank skin.When tank skin and floating plate gap less time, elastic foam can be installed in the space between topping up rubber bag and floating plate.
Elastic foam filled rubber bag adopts the rubber material of thickness 2mm, and meanwhile, the one side that this rubber bag contacts with tank skin adopts hackly surface, to cut off siphon liquid stream, also increases the sealing of seal arrangement.The height of this rubber bag is consistent with floating plate top height, to ensure that whole rubber bag can fill the space between whole floating plate and tank skin.
Elastic foam packing can adopt cylinder type foam or single sheet foam.The diameter of cylinder type foam or the thickness of monolithic type foam plate calculate according to the design pitch of tank skin and floating plate.
Topping up rubber bag adopts strip, and it runs through whole rubber bag from bottom to top, by suitable with the packed height of elastic foam.Fill liquid and can adopt water or other low temperature resistant liquid.The thickness of topping up rubber bag adopts 1mm, to reduce the weight of whole soft seal.
Bolt hole is established on outermost elastic foam filled rubber bag top, and it is fixed on above floating plate edge.
When floating plate and tank skin pitch smaller, after topping up bag in interlayer is squeezed, inner liquid can from the compensatory flowing in trend both sides, and it is fixing for amassing because of the spatial overall between floating plate and tank skin, so the filling liquid and must flow to other parts of inside, and spilling can not be caused.Equally, when floating plate and tank skin spacing become large, the liquid of other parts can flow to this partial-compensation volume automatically.Even if the elasticity of elastic foam reduces after operation a period of time, interlayer internal-filling liquid bag can play compensating action, ensures the elasticity of whole seal arrangement.
This combined type soft seal device is arranged on the space between floating plate and tank skin, is fixed on floating plate edge, establishes metal supporting plate bottom floating plate, and top sides listrium adopts bolt and seal arrangement to fix.Establish metal fixing plate in seal arrangement, soft seal is fitted tightly at floating plate margin plate place, ensure the stability of soft seal in running.When mounted, first the inner side of elastic foam filled rubber bag is arranged on floating plate margin plate upper limb, with sheet metal, elastic foam filled rubber bag is fitted in floating plate edge, elastic foam is filled between topping up elastic foam filled rubber bag and floating plate, until fill up whole space, then elastic foam is adopted to fill in the space between topping up rubber bag and tank skin, until fill up whole space, preferably to fluid injection in topping up rubber bag, filling weight is 60 ~ 70%, ensures that topping up bag top reserves a little free space.When elastic foam is installed, foamed material longitudinally single installation.After filling, the opposite side interface of rubber bag is fixed on floating plate upper edge panel place.
After floating roof tank arranges sealing device, sealing area increases 40 ~ 50%, sealing effect comparatively existing apparatus improves 80 ~ 90%, namely in tank, oil gas can reduce by 99% by the volatile quantity of seal ring, the gas concentration once and between secondary sealer of seal ring can be controlled in less than 1%, essentially eliminates oil gas volatilization and gas explosion hidden danger.
Claims (6)
1. a combined type soft seal device, comprise elastic foam filled rubber bag, topping up rubber bag, elastic foam and stationary platen, it is characterized in that elastic foam filled rubber bag is positioned in the space between storage tank shell and floating plate, its one side contacted with tank skin is hackly surface, topping up rubber bag and elastic foam is filled in elastic foam filled rubber bag, elastic foam is at least filled in the space between topping up rubber bag and storage tank shell, topping up rubber bag is provided with implementation of port, elastic foam filled rubber pocket portions stationary platen near floating plate side is fixedly fitted on floating plate, elastic foam filled rubber bag upper opening is fixed by bolts in floating plate upper edge panel, bracket is provided with bottom floating plate, described elastic foam filled rubber bag is positioned on described bracket.
2. combined type soft seal device according to claim 1, it is characterized in that described topping up rubber bag is strip, from top to bottom through whole elastic foam filled rubber bag, the liquid level in topping up rubber bag is 60 ~ 70%.
3. combined type soft seal device according to claim 1, is characterized in that in the space that described elastic foam is filled between topping up rubber bag and storage tank shell and between topping up rubber bag and floating plate.
4. combined type soft seal device according to claim 1, it is characterized in that described elastic foam filled rubber bag height is consistent with floating plate top height, the space between whole floating plate and tank skin filled by whole elastic foam filled rubber bag.
5. combined type soft seal device according to claim 1, it is characterized in that described elastic foam filled rubber bag adopts thickness to be the rubber material of 1 ~ 4mm, topping up rubber bag adopts thickness to be the rubber material of 1 ~ 2mm.
6. combined type soft seal device according to claim 1, is characterized in that elastic foam material longitudinally single installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420654202.3U CN204226645U (en) | 2014-11-04 | 2014-11-04 | Combined type soft seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420654202.3U CN204226645U (en) | 2014-11-04 | 2014-11-04 | Combined type soft seal device |
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| Publication Number | Publication Date |
|---|---|
| CN204226645U true CN204226645U (en) | 2015-03-25 |
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| CN201420654202.3U Active CN204226645U (en) | 2014-11-04 | 2014-11-04 | Combined type soft seal device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270775A (en) * | 2015-10-21 | 2016-01-27 | 中国石油化工股份有限公司 | Combined type soft sealing device and mounting method thereof |
| CN105480613A (en) * | 2016-01-08 | 2016-04-13 | 鞍山市宏兴石化设备厂 | Oil gas-free space sealing device for oil tank |
| CN108202934A (en) * | 2016-12-16 | 2018-06-26 | 中国石油化工股份有限公司 | The lidstock device of storage tank |
| 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 |
-
2014
- 2014-11-04 CN CN201420654202.3U patent/CN204226645U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270775A (en) * | 2015-10-21 | 2016-01-27 | 中国石油化工股份有限公司 | Combined type soft sealing device and mounting method thereof |
| CN105270775B (en) * | 2015-10-21 | 2017-07-07 | 中国石油化工股份有限公司 | A kind of combined type soft sealer and its installation method |
| CN105480613A (en) * | 2016-01-08 | 2016-04-13 | 鞍山市宏兴石化设备厂 | Oil gas-free space sealing device for oil tank |
| CN108202934A (en) * | 2016-12-16 | 2018-06-26 | 中国石油化工股份有限公司 | The lidstock device of storage tank |
| CN108202934B (en) * | 2016-12-16 | 2019-06-28 | 中国石油化工股份有限公司 | The lidstock device of storage tank |
| 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 |
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