CN201858351U - Manhole provided with overlay welding layer inside - Google Patents
Manhole provided with overlay welding layer inside Download PDFInfo
- Publication number
- CN201858351U CN201858351U CN2010205132076U CN201020513207U CN201858351U CN 201858351 U CN201858351 U CN 201858351U CN 2010205132076 U CN2010205132076 U CN 2010205132076U CN 201020513207 U CN201020513207 U CN 201020513207U CN 201858351 U CN201858351 U CN 201858351U
- Authority
- CN
- China
- Prior art keywords
- flange
- overlay welding
- manhole
- long
- welding layer
- 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.)
- Expired - Fee Related
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model relates to a manhole provided with an overlay welding layer inside, which belongs to the technical field of design and manufacture of manholes used on pressure vessels. The manhole provided with the overlay welding layer inside comprises a vessel course, a long-neck butt welding flange and a flange cover; a flange cover overlay welding layer is arranged on the inner surface of the flange cover; a flange overlay welding layer is arranged on the upper plane and the inner circular surface of the long-neck butt welding flange respectively; the overlay welding layer adopts a material suitable for the working conditions of a pressure vessel; a handle is arranged on the flange cover; and a lifting lug is arranged on one side of a cylinder. The manhole is used on a separating tank, a reaction pot, a storage tank or a heat-exchange vessel; the manhole allows a maintainer to enter the vessel for working; since the overlay welding layers are arranged on the flange cover and the long-neck butt welding flange, the high-quality material is not required to be adopted for the flange cover and the long-neck butt welding flange during the manufacture, and a layer of overlay welding layer is only required to be additionally arranged on one surface contacted with a medium; therefore, the manhole not only can greatly reduce the production cost of an enterprise and save a great amount of high-quality materials, but also meet the requirements of working conditions of the pressure vessel and further solve problems existing in the conventional products.
Description
Technical field
The utility model belongs to design and the manufacturing technology field that is used for the manhole on the pressurized container.
Background technique
Produce the manhole that pressurized container producer makes at present, its shell ring part generally all adopt can satisfy the equipment service condition corrosion-resistant, crushing resistance good and reach the high-quality composite board of the technical parameter that pressurized container requires, but when making flange and blind flange, then to do many considerations, as adopt high-quality composite sheet manufacturing, then waste a large amount of quality materials, strengthened cost of production.As adopt the common material manufacturing, be difficult to reach the desired technical parameter of pressurized container again.
Summary of the invention
At above-mentioned situation, the purpose of this utility model provides and a kind ofly both can reduce manufacture cost, can satisfy the Pressure container manhole of equipment service condition again, to solve the problem that existing product exists.
The utility model is made of shell ring, long-neck welding neckflange and blind flange.On the inner face of blind flange, have the blind flange overlay cladding.On plane and inner headed face on the long-neck welding neckflange, have the flange resurfacing welding layer.Overlay cladding adopts the material that is fit to the pressurized container operating conditions.Between blind flange and long-neck welding neckflange, a pad is arranged.Have clamping bolt on the upper periphery of blind flange.Tightening nut is arranged on the bolt.On blind flange, have handle.On a side of cylindrical shell, have hanger.The utility model is to be used on knockout drum, retort, holding vessel or the heat exchange container.Enter work usefulness in the container for the maintenance man.The utility model makes manufacturing blind flange and long-neck welding neckflange must not adopt quality material on the whole owing to have overlay cladding on blind flange and long-neck welding neckflange, and it is promptly passable to increase one deck overlay cladding on the one side that can touch medium.So both can reduce enterprise's cost of production significantly, save a large amount of quality materials, and can satisfy the requirement of pressurized container operating conditions again.Solved existing product problem.
Description of drawings
Accompanying drawing is the utility model structural representation
1-shell ring 2-major diameter welding neckflange 3-flange resurfacing welding layer 4-pad 5-blind flange overlay cladding 6-blind flange 7-tightening nut 8-clamping bolt 9-hanger 10-handle
Embodiment
Structure of the present utility model is as shown in drawings: be made of shell ring 1, long-neck welding neckflange 2 and blind flange 6.On the inner face of blind flange, have blind flange overlay cladding 5.On plane and inner headed face on the long-neck welding neckflange, have flange resurfacing welding layer 3.Overlay cladding adopts the material that is fit to the pressurized container operating conditions.One pad 4 is arranged between blind flange and long-neck welding neckflange.Have clamping bolt 8 on the upper periphery of blind flange.Tightening nut 7 is arranged on the bolt.On blind flange, have handle 10.On a side of cylindrical shell, have hanger 9.
Claims (1)
1. the inner manhole that has overlay cladding, constitute by shell ring (1), long-neck welding neckflange (2) and blind flange (6), it is characterized in that: on the inner face of blind flange, have blind flange overlay cladding (5), on plane and inner headed face on the long-neck welding neckflange, have flange resurfacing welding layer (3), a pad (4) is arranged between blind flange and long-neck welding neckflange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205132076U CN201858351U (en) | 2010-09-02 | 2010-09-02 | Manhole provided with overlay welding layer inside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205132076U CN201858351U (en) | 2010-09-02 | 2010-09-02 | Manhole provided with overlay welding layer inside |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858351U true CN201858351U (en) | 2011-06-08 |
Family
ID=44104158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205132076U Expired - Fee Related CN201858351U (en) | 2010-09-02 | 2010-09-02 | Manhole provided with overlay welding layer inside |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858351U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146503A (en) * | 2020-10-10 | 2020-12-29 | 上海电气电站设备有限公司 | Be suitable for solar photothermal power plant heat exchanger's welded gasket manhole structure |
-
2010
- 2010-09-02 CN CN2010205132076U patent/CN201858351U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146503A (en) * | 2020-10-10 | 2020-12-29 | 上海电气电站设备有限公司 | Be suitable for solar photothermal power plant heat exchanger's welded gasket manhole structure |
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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: 20110608 Termination date: 20120902 |