CN202451819U - Reinforcement structure for large hole of thin-wall pressure container shell cover - Google Patents
Reinforcement structure for large hole of thin-wall pressure container shell cover Download PDFInfo
- Publication number
- CN202451819U CN202451819U CN2012200499393U CN201220049939U CN202451819U CN 202451819 U CN202451819 U CN 202451819U CN 2012200499393 U CN2012200499393 U CN 2012200499393U CN 201220049939 U CN201220049939 U CN 201220049939U CN 202451819 U CN202451819 U CN 202451819U
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- pressure container
- shell cover
- reinforcement structure
- reinforcement
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Abstract
The utility model belongs to the technical field of chemical machinery design, and specifically relates to a reinforcement structure for a large hole of a thin-wall pressure container shell cover. The novel reinforcement structure for the large hole of the thin-wall pressure container shell cover is composed of a plurality of groups of stiffening plates and welding rib plates, and is characterized in that the stiffening plates are welded in a surface mount manner at the joint of the shell cover and an adapter, while the rib plates are fillet-welded between the stiffening plates and the adapter. With the use of the reinforcement structure for the large hole of the thin-wall pressure container shell cover, the maximum local thin film stress of the structure of an opening area can be obviously reduced, and the stability of the structure is improved and the processing difficulty and processing cost both are reduced; and when the diameter of the hole is large, the consumption of materials can be reduced to a large extent; and therefore, the market competitiveness of pressure container manufacturers can be enhanced.
Description
Technical field
The utility model relates to the Design of Chemical Machinery technical field, particularly a kind of thin-walled pressure vessel end socket large opening strengthening structure.
Background technique
Thin-walled pressure vessel refers generally to the external pressure (P < 0.1MPa) and the low pressure vessel (0.1 < P < 1.6MPa) of outer diameter and inner diameter ratio (Do/>Di) max≤1.1-1.2.Be mainly used in storage tank, container and the tower in fields such as chemical industry, oil, Aero-Space, also through being usually used in the storage tank in food pharmaceutical field, its purposes is very extensive.But in real world applications, because technology or structural requirement usually need perforate be installed adapter, like manhole, hand hole, sewage draining exit, medium gateway etc. on container.Yet when after perforate on the thin-walled pressure vessel, structural continuity is destroyed, and makes its opening area produce very high localized stress, for reducing the stress of opening area, need carry out rational reinforcement at the verge of opening place.When percent opening hour can be according to the 8th part of GB-150---the equal-area method that proposes " perforate and reinforcement for openings " in carries out reinforcement design to open-celled structure.When out of specifications large opening occurring on the thin-walled pressure vessel, the stress concentration factor of aperture area is bigger, and stress distribution is more complicated, does not also have unified method that the reinforcement design is carried out in the thin-walled pressure vessel large opening at present.The structure of reinforcement for openings mainly contains panel reinforcement, thick-walled takeover reinforcement and reinforcement by integrated forging piece at present.Panel reinforcement is simple in structure, the reinforcement district comparatively disperses; Easily manufactured; Certain reinforcing effect is arranged, but reinforcing effect is not good, the stress concentration factor after the reinforcement is bigger, cause stiffening ring near structural rigidity strengthen; Increased the structure discontinuity of joining, and other parts on housing itself and the housing can limit excessive stiffening ring usually with adjacent to; The relative cylindrical shell of the wall thickness of thick-walled takeover reinforcement is bigger, increases welding difficulty and manufacture cost easily, and does the time spent as adapter power and moment on nozzle, and it is excessive to take over wall thickness, can cause the stress of aperture area to increase; During reinforcement by integrated forging piece, because butt weld is adopted in the welding between reinforcement device and housing, the adapter, welding quality is guaranteed; And the position of maximum stress point is left in weld seam and heat affected zone, and anti-fatigue performance is good, and the reinforcement regional centralized at place is in area of stress concentration; Can reduce stress concentration factor effectively; But make loaded down with trivial detailsly, cost is higher, therefore only in visual plant, uses.The thin-walled pressure vessel end socket of large opening requires the reinforcement area more concentrated; When adopting thickness with panel reinforcement that housing equates; The area of stiffening ring is bigger; Structural rigidity strengthens near causing stiffening ring, has increased the structure discontinuity of joining with adjacent to, and other parts on housing itself and the housing can limit excessive stiffening ring usually.Therefore, the utility model will propose.
The model utility content
The purpose of the utility model is to provide a kind of thin-walled pressure vessel end socket large opening strengthening structure; It avoids the existing deficiency of above-mentioned technology; It is a kind of new structure to thin-walled pressure vessel end socket large opening reinforcement, can under the prerequisite that satisfies the strength and stiffness requirement, reduce difficulty of processing and processing cost.
For realizing above-mentioned purpose, the utility model is to realize like this.
A kind of thin-walled pressure vessel end socket large opening strengthening structure, it is made up of stiffening plate and welding gusset, it is characterized in that: described stiffening plate pastes and is welded in end socket and takes over the joint, and the gusset fillet welding is at stiffening plate and between taking over.
Described thin-walled pressure vessel end socket large opening strengthening structure is characterized in that: described stiffening plate has 8 groups with the welding gusset, and is evenly distributed on around the adapter.
The technique effect of the utility model is: can under the prerequisite that satisfies the strength and stiffness requirement, reduce the consumption of material greatly, practice thrift cost of production.Under interior pressure effect, adopt the stiffening plate stiffened panel composite structure of novel strengthening structure, when reinforcement is carried out in large opening to the thin-walled pressure vessel end socket, structure overall stressed better.The gusset number is many more, and the total stress of structure is with once to add secondary stress more little, and the region of stress concentration area is also more little, but corresponding processing cost also increases thereupon, answers the comprehensive strength requirement and the suitable number that is processed into original definite novel strengthening structure gusset.Pressurized container is uniformly distributed with external pressure and does the time spent bearing, and stability of structure also improves greatly after the reinforcement, satisfies rigidity requirement.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is embodiment 1 an axle sectional structure diagram.
Fig. 3 is the plan view of Fig. 2.
Label among the figure: A is a stiffening plate, and B is the welding gusset, and C is the thin-walled pressure vessel end socket, and D is that large opening is taken over.
Embodiment
See also Fig. 1-3, the utility model discloses a kind of thin-walled pressure vessel end socket large opening strengthening structure.As shown in the figure: stiffening plate A pastes and is welded on the end socket C, and gusset B is distributed on and takes over around the D, and fillet welding is being taken between D and the stiffening plate A.During design large opening thin-walled pressure vessel,, can adopt the utility model design reinforcement for openings owing to exceeded GB-150 pair of reinforcement for openings designing requirement scope.Whole in the present embodiment strengthening structure is combined with the welding gusset by 8 groups of stiffening plates that are distributed in around taking over.
The method for using of the utility model is: when the design thin-walled pressure vessel; For percent opening greater than 0.5 large opening pressurized container; Exceeded GB-150 pair of reinforcement for openings designing requirement scope, end socket design at this moment can be adopted the utility model, promptly novel large opening strengthening structure design.
Being merely the preferred embodiment of the utility model in sum, is not the practical range that is used for limiting the utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should be the technological category of the utility model.
Claims (2)
1. thin-walled pressure vessel end socket large opening strengthening structure; It is made up of stiffening plate (A) and welding gusset (B); It is characterized in that: described stiffening plate (A) pastes and is welded in end socket (C) and takes over (D) joint, and gusset (B) fillet welding is between stiffening plate (A) and adapter (D).
2. thin-walled pressure vessel end socket large opening strengthening structure according to claim 1 is characterized in that: described stiffening plate (A) and welding gusset (B) have 8 groups, and are evenly distributed on adapter (D) on every side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200499393U CN202451819U (en) | 2012-02-16 | 2012-02-16 | Reinforcement structure for large hole of thin-wall pressure container shell cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200499393U CN202451819U (en) | 2012-02-16 | 2012-02-16 | Reinforcement structure for large hole of thin-wall pressure container shell cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451819U true CN202451819U (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200499393U Expired - Fee Related CN202451819U (en) | 2012-02-16 | 2012-02-16 | Reinforcement structure for large hole of thin-wall pressure container shell cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451819U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111506860A (en) * | 2020-04-16 | 2020-08-07 | 哈尔滨锅炉厂有限责任公司 | Pipe connection reinforcement calculation method capable of simultaneously bearing internal pressure and external pressure |
| CN113008301A (en) * | 2021-02-26 | 2021-06-22 | 中海石油技术检测有限公司 | Risk assessment method for vertical cylindrical steel welding storage tank |
-
2012
- 2012-02-16 CN CN2012200499393U patent/CN202451819U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111506860A (en) * | 2020-04-16 | 2020-08-07 | 哈尔滨锅炉厂有限责任公司 | Pipe connection reinforcement calculation method capable of simultaneously bearing internal pressure and external pressure |
| CN113008301A (en) * | 2021-02-26 | 2021-06-22 | 中海石油技术检测有限公司 | Risk assessment method for vertical cylindrical steel welding storage tank |
| CN113008301B (en) * | 2021-02-26 | 2022-05-20 | 中海石油技术检测有限公司 | Risk assessment method for vertical cylindrical steel welding storage tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20130216 |