CN208057667U - A kind of bolt and nut component and flange assembly - Google Patents
A kind of bolt and nut component and flange assembly Download PDFInfo
- Publication number
- CN208057667U CN208057667U CN201820397406.1U CN201820397406U CN208057667U CN 208057667 U CN208057667 U CN 208057667U CN 201820397406 U CN201820397406 U CN 201820397406U CN 208057667 U CN208057667 U CN 208057667U
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- bolt
- nut
- protective cap
- flange assembly
- flange
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Abstract
The utility model discloses a kind of bolt and nut component and flange assemblies, belong to anti-corrosive apparatus technical field.Bolt and nut component provided by the utility model includes bolt and the nut that is used cooperatively with bolt, and the outer cover of at least one of bolt head and nut is equipped with protective cap, and protective cap is made of cellular rubber, and protective cap coats bolt head or nut on its interior.Bolt and nut component provided by the utility model and the flange assembly for using the bolt and nut component; it can be to avoid being corroded in bolt head and the nut at sea wet environments such as implement; greatly improve the reliability of the coupling part of equipment; and protective value is stablized; during later maintenance; protective cap is easy to disassemble, reduces the cost of human and material resources of maintenance.
Description
Technical field
The utility model is related to anti-corrosive apparatus technical field more particularly to a kind of bolt and nut component and including the bolt
The flange assembly of nut assembly.
Background technology
Flange bolt component belongs to connector, in every field extensively using (such as in offshore production facility), to entire
The safety of facility is particularly important, therefore usually requires to carry out anti-corrosion to flange bolt component.For example, offshore production facility high pressure
Pipeline connection is mostly the connection of flange bolt formula, and installation environment is open space.There was dampness in the air and salinity is larger for marine environment, dislikes
Bad environment exacerbates the corrosion rate of bolt, and conventional inspection can not find the variation of the hardness and tensile strength of bolt.If
Not good safeguard procedures, high salinity, high humility offshore platform there will be the bolt corrosion of many places be broken hidden danger, to sea
The normal operation and personnel safety of production of hydrocarbons facility will be huge threat.
The anti-corrosion of flange bolt component in Offshore Units is different from other equipment class anti-corrosion, and first aspect is the reason is that divide
Cloth is wide, quantity is big, the anti-corrosion period is long, and is limited by technological process and can not dismantle anti-corrosion at any time.Second the reason is that corrosion bolt
There is the high pressure line that medium is oil gas class in dismounting problem, external mechanical energy (machine cuts) or thermal energy (gas cutting of getting angry) dismounting
Dodge the security risks such as quick-fried.The third aspect consumes class material the reason is that bolt belongs to, and cannot achieve Performance Evaluation after installation, can only lean on
Artificial knowledge judges that this, which is also resulted in, can not control suitable replacing construction node otherwise.Because considering equipment safety and people
Member's safety is all to replace in advance, therefore a large amount of fund cost is caused to waste.
Mainstream anti-corrosion method includes paint antisepsis, butter cloth package antisepsis, lubricating grease antisepsis etc. at this stage, this
There is inevitable negative effect in use in class anti-corrosion method：
The anti-corrosion method for such as painting class realizes that bolt surface is isolated with humid air by the leakproofness of paint, resistance
Only corrode.But this anti-corrosion method is generally directed to small-sized flange bolt equipment, and the problem of this method most serious is brushing paint
Bolt, thread surface, which is painted, to be filled and led up, cure after dismounting it is extremely difficult, the secondary use of maintenance of equipment and bolt is caused
Serious puzzlement.
The anti-corrosion method of butter cloth lubrication lipid is attached to bolt surface layer by the oil film that butter cloth or lubricating grease are formed
Form has the function that completely cutting off air prevents bolt oxidation corrosion.There is the following in this method：Short life, effect are poor, throw
Provide more, easy to pollute and heavy workload.The service life of oily band is 1~2 month, and lubricating grease is then shorter, less than 1 month, air-dries
Oily band and lubricating grease afterwards cannot achieve antisepsis；And oily band and lubricating grease is on the high side, live bolt is more, maintenance at
This height, anti-corrosion mode belong to external and wrap up brushing form, and oily band is easy to fall off pollution environment, is to plant facility and marine environment
Serious pollution threat；Lubricating grease viscosity is higher, and dust accumulation is more, and the term of validity is extremely short, to lead to the bolt anti-corrosion period indirectly
It is greatly shortened, repetitive operation increases, and employee work amount increases.
Some other isolated anti-corrosion methods of cladding, there is also costs, and high, cost wastes serious, easy aging tortoise
It splits, safeguard function failure equally has dismounting difficulty after aging with paint.
To sum up, all there is inevitable technological deficiency in existing aseptic technic, eventually lead to existing anti-corrosion method all
It can not avoid the problem that flange bolt protection failure, this is also the root for causing Offshore Units flange bolt extent of corrosion to only increase
This reason.Many defects of the prior art necessarily cause one as a result, bolt anti-corrosion work doing always, bolt can be still had
The time limit is installed to increase, the problem that extent of corrosion is only increased with security risk.At sea environment high humility, the evil of high salinity omit ring
Under border, still there is the phenomenon that corrosion is even broken in flange bolt.
Utility model content
The purpose of this utility model is that proposing a kind of bolt and nut component simple in structure, at low cost, favorable anti-corrosion effect
And include the flange assembly of the bolt and nut component.
For this purpose, on the one hand, the utility model uses following technical scheme：
A kind of bolt and nut component, including bolt and the nut that is used cooperatively with the bolt, the nut and the spiral shell
The outer cover of at least one of the bolt head of bolt is equipped with protective cap, and the protective cap is made of cellular rubber, the protective cap
It is coated on the bolt head on its interior or the nut.
Further, the protective cap bolt head internal with it is sheathed on or nut interference fit.
Further, the in-profile of the protective cap and it is sheathed on the outer of its internal bolt head or the nut
Contouring matches.
Further, it is bonded between the protective cap and bolt head or nut for being sheathed on inside it.
On the other hand, the utility model uses following technical scheme：
A kind of flange assembly, the flange assembly include two ring flanges being oppositely arranged and any of the above-described bolt
Nut assembly；It is connected with the nut by the mutually matched bolt between two ring flanges；The flange assembly
Further include screw rod anticorrosion structure, the screw rod anticorrosion structure is located at two ring flanges in the screw rod periphery of the bolt and sealing
Between gap.
Further, the screw rod anticorrosion structure includes the guard circle made of cellular rubber.
Further, the guard circle is arranged between the interface of two ring flanges；The guard circle is by one
Cellular rubber item is surrounded and is formed.
Further, the upper surface of the guard circle and the interface of one of them ring flange bond, the protection
The lower face of circle and the interface of another ring flange bond.
Further, it is bonded between the end face and the ring flange of the direction of the protective cap ring flange.
Further, the periphery of two ring flanges be enclosed with aluminium-foil paper on the outside of the guard circle, masking foil,
Or adhesive tape；Alternatively, in the periphery mopping of two ring flanges and the guard circle.
The beneficial effects of the utility model are as follows：
Bolt and nut component and flange assembly provided by the utility model are arranged in the outside of bolt head and nut by rubber
Protective cap made of sponge, due to cellular rubber chemical property is stable, with keep the temperature sun-proof, fire protection flame retarding, heat-insulating sound-insulating it is super
High-performance, protective value are stablized, can be to avoid being corroded in bolt head and the nut at sea wet environments such as implement, greatly
Ground improves the reliability of the coupling part of equipment, and during later maintenance, protective cap is easy to disassemble, reduces maintenance
Cost of human and material resources.
Description of the drawings
Fig. 1 is the structural schematic diagram for the flange assembly that the utility model embodiment provides；
Fig. 2 is the sectional view of Fig. 1；
Fig. 3 is the structural schematic diagram for the protective cap that the utility model embodiment provides；
Fig. 4 is the sectional view of Fig. 3；
Fig. 5 is the structural schematic diagram for the guard circle that the utility model embodiment provides.
In figure：
1, ring flange；2, bolt；3, nut；4, protective cap；5, guard circle；6, pipeline；
21, bolt head；22, screw rod；41, side wall；42, bottom surface.
Specific implementation mode
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
Embodiment：
The embodiments of the present invention provide a kind of flange assembly, preferably but are not limited to apply in water especially
In the wet environments such as seawater, it is also applicable in the environment that other are easily corroded.
As depicted in figs. 1 and 2, flange assembly provided in this embodiment includes that bolt and nut component and two are oppositely arranged
Ring flange 1.Two ring flanges 1 are connected from different pipelines 6 respectively.Wherein, bolt and nut component include bolt 2 and with bolt 2
The nut 3 being used cooperatively, passes through bolt 2 between two ring flanges 1 and nut 3 connects.Understandably, between two ring flanges 1
The distribution of the quantity and bolt 2 and nut 3 of used bolt 2 and nut 3 can be configured according to specific needs, Neng Gouman
It is effectively connected between two ring flanges 1 of foot.The outside of the bolt head 21 of nut 3 and bolt 2 is arranged with protective cap 4, protects
Helmet 4 is made of cellular rubber, and protective cap 4 is coated on the bolt head 21 inside protective cap 4 or nut 3.Understandably,
A upper above-mentioned protective cap 4 of setting only in bolt head 21 and nut 3, also belongs to the disposable embodiment of the present embodiment.
Bolt and nut component and flange assembly provided in this embodiment can be installed by bolt and nut component to flange group
After on part, above-mentioned protective cap 4 is installed.Protective cap 4 made of cellular rubber are arranged in the outside of bolt head 21 and nut 3,
Due to cellular rubber chemical property is stable, with sun-proof, fire protection flame retarding, heat-insulating sound-insulating very-high performance is kept the temperature, protective value is steady
It is fixed, it can be greatlyd improve to avoid being corroded in bolt head 21 and the wet environment that at sea implement etc. is applicable in of nut 3
The reliability of the coupling part of equipment, and during later maintenance, protective cap 4 is easy to disassemble, reduce the manpower of maintenance
With material resources cost.
In the present embodiment, the elasticity of rubber-plastic sponge can be utilized, protective cap is made according to the size of nut 3 and bolt head 21
4, make protective cap 4 and be sheathed on its internal bolt head 21 or the interference fit of nut 3, nut 3 and bolt head 21 are sealed
Come, so that it is thoroughly kept apart with ambient enviroment, reach anti-corrosion, rust-proof effect.Fig. 3 and Fig. 4 are please referred to, protective cap 4 is substantially
Bottom surface 42 including a circle side wall 41 and the end for being set to side wall 41.The in-profile of protective cap 4 is preferably and is sheathed on it
The exterior contour of internal bolt head 21 or nut 3 matches, match refer to protective cap 4 in-profile it is excellent and be sheathed on it
The shape of the bolt head 21 of inside or the exterior contour of nut 3 is consistent, size matches, such as it is substantially in positive six side to be
Shape, the internal diameter of protective cap 4 is equal or slightly larger than the outer diameter for being sheathed on its internal bolt head 21 or nut 3, to be further convenient for
Installation and raising leakproofness.It is understood, of course, that ground, since there is cellular rubber certain elasticity also may be used in other embodiments
So that the inner wall of protective cap 4 is in shapes such as cylindrical surfaces.
In order to avoid protective cap 4 falls off, can by adhesive by protective cap 4 and be sheathed on its internal bolt head 21 or
It is bonded between nut 3.It, can also be by protective cap in order to further increase leakproofness of the protective cap 4 for bolt head 21 and nut 3
4 bond towards between the end face of ring flange 1 and ring flange 1.By the portability of cellular rubber material and the fastness of adhesive,
Protective cap 4 after package realizes the effect of seal isolation and not easily to fall off, and late protection cap 4 can also be reused, further
Reduce cost.
Be located in order to prevent the screw rod 22 between two ring flanges 1 be corroded, with further increase bolt and nut component and
The stability of flange assembly structure, flange assembly provided in this embodiment further include screw rod anticorrosion structure, screw rod anticorrosion structure position
In 22 periphery of screw rod and seal the gap between two ring flanges 1.
Referring to Fig. 1 and Fig. 2, which includes guard circle 5 made of cellular rubber.Guard circle 5
It is preferred that but be not limited between the interface for being arranged in two ring flanges 1, to utilize the ductility and Expansion sealing of rubber-plastic sponge
Property, the irregular surface progress effectively filling protection between two 1 interfaces of ring flange, and can be according to 1 joint face of ring flange
Void size selection different in width cellular rubber.The outer wall of guard circle 5 is preferably substantially coplanar with the outer wall of ring flange 1.
Understandably, in other embodiments, the packet of guard circle 5 can also be enabled set on the periphery of two ring flanges 1 and block two flanges
Gap between disk 1.
Fig. 5 is please referred to, in order to facilitate the installation of, guard circle 5 is preferably surrounded by a cellular rubber item and formed.Installation
When, between can one end of cellular rubber item being first arranged in two ring flanges 1, then gradually by whole cellular rubber item stick into
Between two ring flanges 1, until cellular rubber item forms the annular being closed.In order to avoid guard circle 5 falls off, guard circle 5 it is upper
End face and the interface of one of ring flange 1 are bonded by binder, the lower face of guard circle 5 and another ring flange 1
Interface is bonded by binder, to rely on the fastness of the portability and adhesive of cellular rubber material, the protection after bonding
Enclose 5 it is not easily to fall off can keep high efficient protected for a long time, so that the screw rod 22 of bolt 2 is thoroughly kept apart with surrounding wet environment, reach
Anti-corrosion, rust-proof effect.The corrosion protection of end face between flange of guard circle 5 made of the cellular rubber is that existing aseptic technic can not
It realizes, and being capable of cost efficiency.
In order to which whole anti-corrosion effect is more preferably with whole aesthetics, it can be located in the periphery of two ring flanges 1 package and protect
Aluminium-foil paper, masking foil or the adhesive tape in 5 outside of guard ring；Alternatively, in the periphery mopping of two ring flanges 1 and guard circle 5.This is not only
Increase aesthetics, and leakproofness, ageing resistance is made further to be promoted.
At least two bolts 2 and two nuts 3 are installed simultaneously on a flange, are pacified on one of bolt 2 and nut 3
Protective cap 4 and guard circle 5 provided in this embodiment are filled, is not protected on remaining bolt 2 and nut 3.By nearly 6 months realities
It tests, after dismantling guard circle 5 and protective cap 4, does not make the bolt protected 2 and different degrees of corrosion occurs in nut 3；And it uses
The state when bolt 2 and nut 3 of protective cap 4 and guard circle 5 provided in this embodiment and installation is essentially identical, does not corrode
Occur.
The technical principle of the utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality
With novel principle, and it cannot be construed to the limitation to scope of protection of the utility model in any way.Based on the explanation herein,
Those skilled in the art would not require any inventive effort the other specific implementation modes that can associate the utility model,
These modes are fallen within the scope of protection of the utility model.
Claims (10)
1. a kind of bolt and nut component, including bolt and the nut that is used cooperatively with the bolt, which is characterized in that the nut
It is equipped with protective cap with the outer cover of at least one of the bolt head of the bolt, the protective cap is made of cellular rubber, institute
Protective cap is stated to be coated on the bolt head on its interior or the nut.
2. bolt and nut component according to claim 1, which is characterized in that the protective cap and the institute for being sheathed on its inside
State bolt head or nut interference fit.
3. bolt and nut component according to claim 2, which is characterized in that the in-profile of the protective cap and be sheathed on
The exterior contour of its internal bolt head or the nut matches.
4. bolt and nut component according to any one of claims 1 to 3, which is characterized in that the protective cap and be sheathed on
It is bonded between its internal bolt head or the nut.
5. a kind of flange assembly, which is characterized in that the flange assembly includes two ring flanges being oppositely arranged and as right is wanted
Seek 1 to 4 any bolt and nut component；Pass through the mutually matched bolt and the spiral shell between two ring flanges
Mother's connection；The flange assembly further includes screw rod anticorrosion structure, and the screw rod anticorrosion structure is located at the screw rod periphery of the bolt
And seal the gap between two ring flanges.
6. flange assembly according to claim 5, which is characterized in that the screw rod anticorrosion structure includes by cellular rubber system
At guard circle.
7. flange assembly according to claim 6, which is characterized in that the guard circle is arranged in two ring flanges
Between interface；The guard circle is surrounded by a cellular rubber item and is formed.
8. flange assembly according to claim 7, which is characterized in that the upper surface of the guard circle and one of them described in
The interface of ring flange bonds, and the lower face of the guard circle and the interface of another ring flange bond.
9. according to claim 5 to 8 any one of them flange assembly, which is characterized in that the direction method of the protective cap
It is bonded between the end face of blue disk and the ring flange.
10. according to claim 6 to 8 any one of them flange assembly, which is characterized in that the periphery packet of two ring flanges
Aluminium-foil paper, masking foil or the adhesive tape being wrapped on the outside of the guard circle；Alternatively, in two ring flanges and the protection
The periphery mopping of circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820397406.1U CN208057667U (en) | 2018-03-22 | 2018-03-22 | A kind of bolt and nut component and flange assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820397406.1U CN208057667U (en) | 2018-03-22 | 2018-03-22 | A kind of bolt and nut component and flange assembly |
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| Publication Number | Publication Date |
|---|---|
| CN208057667U true CN208057667U (en) | 2018-11-06 |
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ID=63989057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820397406.1U Active CN208057667U (en) | 2018-03-22 | 2018-03-22 | A kind of bolt and nut component and flange assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208057667U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278264A (en) * | 2018-03-22 | 2018-07-13 | 中国海洋石油集团有限公司 | A kind of bolt and nut component and flange assembly |
-
2018
- 2018-03-22 CN CN201820397406.1U patent/CN208057667U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278264A (en) * | 2018-03-22 | 2018-07-13 | 中国海洋石油集团有限公司 | A kind of bolt and nut component and flange assembly |
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