CN205580230U - Jumbo size thin wall interface butt joint welded structure - Google Patents
Jumbo size thin wall interface butt joint welded structure Download PDFInfo
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- CN205580230U CN205580230U CN201620054277.7U CN201620054277U CN205580230U CN 205580230 U CN205580230 U CN 205580230U CN 201620054277 U CN201620054277 U CN 201620054277U CN 205580230 U CN205580230 U CN 205580230U
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Abstract
The utility model provides a jumbo size thin wall interface butt joint welded structure, between steam turbine low pressure jar steam drain and condenser throat entry, set up the connection middleware of a similar flange structure, be called for short the dummy -flange, it is adj. Tabularly to connect the middleware, steam turbine low pressure jar steam drain and one side welding of being connected the middleware, condenser throat entry and the opposite side welding of being connected the middleware, this kind of butt joint welded structure, can solve the too big welding difficult problem that arouses in wrong limit that the deformation in the jumbo size thin wall interface manufacture process leads to effectively, under the prerequisite of ensuring the quality of products, can reduce and make and the construction degree of difficulty, simple operation.
Description
Technical field
This utility model belongs to clammy condenser of thermal generator set manufacture and installing engineering field, is specifically related to a kind of large scale
Thin-walled interface docking Welding Structure.
Background technology
At present in wet cooling gas turbine group, turbine low pressure cylinder steam discharge is downwardly into throat's entrance of condenser, building at unit
During if, it is necessary at the construction field (site) condenser throat entrance is coupled together with turbine low pressure cylinder steam drain.Due to condensing
Device throat entrance opening dimension is bigger, for 300MW unit, its condenser throat entrance opening dimension about 7500X5000mm is right
In the interface unit of this size, during manufacturing (welding), certainly exist large-size deformation.Therefore at concrete engineering
In Construction Practice, want turbine low pressure cylinder steam drain the most directly to dock with condenser throat entrance, by
It is all large size, thin walled interface in both, has bigger size distortion amount, if using directly docking two interfaces as shown in Fig. 1
Mode, owing to size distortion amount causes upper and lower parts horizontal displacement relatively big, alignment welding can be an extremely difficult thing, executes
Working medium amount can not be guaranteed.
Utility model content
The purpose of this utility model is to provide one to utilize specific connection assist, it is achieved easily produce the two of size distortion
The individual large size, thin walled interface Welding Structure when docking.
To achieve these goals, this utility model provides a kind of large size, thin walled interface docking Welding Structure, including steam turbine
Low pressure (LP) cylinder steam drain, condenser throat entrance, connection middleware, it is characterised in that at turbine low pressure cylinder steam drain with solidifying
Between Qi Qi throat entrance, placing the connection middleware of a similar flange arrangement, connect middleware plate-shaped, steam turbine is low
Cylinder pressure steam drain and the side welding being connected middleware, condenser throat entrance and the opposite side welding being connected middleware.
Further, connect middleware to be processed into by steel plate.
Further, connecting middleware and have the shape of similar flange, periphery is not distributed flange connecting hole.
Further, connect middleware and there are the shape and size consistent with turbine low pressure cylinder steam drain.
Further, connecting middleware width is 20-200mm, and selecting thickness is the carbon sheet of 10-50mm.
This utility model, when the docking welding carried out between turbine low pressure cylinder steam drain and condenser throat entrance, uses class
Carry out auxiliary construction like the connection middleware of flange arrangement, can quick, convenient, effectively solve the misalignment that deformation causes
Measure the excessive welding difficult problem caused.
Accompanying drawing explanation
Fig. 1 is that existing interface docks Welding Structure schematic diagram；
Fig. 2 is to use to connect middleware Welding Structure schematic diagram；
Wherein 1 turbine low pressure cylinder steam drain, 2 condenser throat entrances, 3 connect middleware, 4 weld seams
Detailed description of the invention
2 pairs of this utility model are further described below in conjunction with the accompanying drawings, it will be appreciated that content described herein is only used for
Bright and explain this utility model, be not used to limit this utility model.
As in figure 2 it is shown, the Welding Structure involved by this utility model includes that turbine low pressure cylinder steam drain, condenser throat enter
Mouth, connection middleware, between turbine low pressure cylinder steam drain and condenser throat entrance, arrange a similar flange arrangement
Connection middleware, be called for short dummy-flange, connect middleware plate-shaped, turbine low pressure cylinder steam drain and be connected middleware one
Side is welded, condenser throat entrance and the opposite side welding being connected middleware.
This utility model is during construction and installation, first according to the prefabricated corresponding connection middleware of turbine low pressure cylinder steam drain,
Connecting middleware and have the shape and size consistent with turbine low pressure cylinder steam drain, steel plate can be used to be processed into, steel plate has
There is one fixed width, according to dislocation deflection when docking between low pressure (LP) cylinder steam drain with condenser throat entrance during site operation
Rationally determining, the most optional 20-200mm width, thickness can be according to the material thickness needed for welding procedure and interface pressure
Rational choice, the most optional 10-50mm.This connection middleware after finalization of the manufacture, has the face shaping of similar flange,
But periphery is not distributed flange connecting hole；Between turbine low pressure cylinder steam drain and condenser throat entrance, according to prefabricated company
The thickness of relay part, reserves corresponding clearance distance, and clearance distance is equal to the thickness welding plus twice connecting middleware
Gap, welded gaps takes 1-3mm；Upper and lower pipe interface part is carried out bevel for welding and processes technique, be used for and be connected centre
Welding procedure between part；Connection middleware is placed between turbine low pressure cylinder steam drain and condenser throat entrance, steamer
Machine low pressure (LP) cylinder steam drain and the side welding being connected middleware, condenser throat entrance and the opposite side welding being connected middleware；
First it is attached middleware lower weld, utilizes multiple wedge type instrument to insert and connect middleware and condenser throat inlet contact face
Between, its gap is adjusted to required welded gaps, by spot welding fixed connecting part position, removes wedge type instrument and carry out
Lower weld；After lower weld completes, then carry out upper weld；It is attached middleware top and bottom at interface internal
Welding；Removing interface internal and outside long connection middleware, retaining connection middleware edge far from weld edge distance is
10-30mm.Thus can quick, convenient, effectively solve the excessive welding difficult problem caused of unfitness of butt joint that deformation causes.
Finally it is noted that the foregoing is only explanation of the present utility model, it is not limited to this utility model, although
Being described in detail this utility model, for a person skilled in the art, it still can be to aforementioned described
Technical scheme modify, or wherein portion of techniques feature is carried out equivalent.All in spirit of the present utility model and
Within principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (5)
1. large size, thin walled interface docking a Welding Structure, including turbine low pressure cylinder steam drain, condenser throat entrance,
Connect middleware, it is characterised in that between turbine low pressure cylinder steam drain and condenser throat entrance, place one and be similar to
The connection middleware of flange arrangement, connects middleware plate-shaped, turbine low pressure cylinder steam drain and the side weldering being connected middleware
Connect, condenser throat entrance and the opposite side welding being connected middleware.
Welding Structure the most according to claim 1, it is characterised in that connect middleware and be processed into by steel plate.
Welding Structure the most according to claim 1, it is characterised in that connect middleware and there is the shape of similar flange,
Periphery is not distributed flange connecting hole.
Welding Structure the most according to claim 1, it is characterised in that connect middleware and have and turbine low pressure cylinder row
The shape and size that steam ports is consistent.
Welding Structure the most according to claim 2, it is characterised in that connecting middleware width is 20-200mm, choosing
It is the carbon sheet of 10-50mm with thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620054277.7U CN205580230U (en) | 2016-01-14 | 2016-01-14 | Jumbo size thin wall interface butt joint welded structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620054277.7U CN205580230U (en) | 2016-01-14 | 2016-01-14 | Jumbo size thin wall interface butt joint welded structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205580230U true CN205580230U (en) | 2016-09-14 |
Family
ID=56883205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620054277.7U Active CN205580230U (en) | 2016-01-14 | 2016-01-14 | Jumbo size thin wall interface butt joint welded structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205580230U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547005A (en) * | 2016-01-14 | 2016-05-04 | 大唐(北京)能源管理有限公司 | Large-size thin-wall connector butt welding structure and method |
-
2016
- 2016-01-14 CN CN201620054277.7U patent/CN205580230U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547005A (en) * | 2016-01-14 | 2016-05-04 | 大唐(北京)能源管理有限公司 | Large-size thin-wall connector butt welding structure and method |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |