CN206753667U - A kind of gas turbine exhaust gas water conservancy diversion, fairing - Google Patents
A kind of gas turbine exhaust gas water conservancy diversion, fairing Download PDFInfo
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- CN206753667U CN206753667U CN201720379452.4U CN201720379452U CN206753667U CN 206753667 U CN206753667 U CN 206753667U CN 201720379452 U CN201720379452 U CN 201720379452U CN 206753667 U CN206753667 U CN 206753667U
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- conservancy diversion
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Abstract
A kind of gas turbine exhaust gas water conservancy diversion, fairing, including heat exchange tube cylinder, some deflectors, support；Described some deflectors are arranged respectively to taper barrel structure, described some taper tubular deflector diameters are different, described support is " rice " shape, externally it is arranged the deflector of diameter from small to large successively centered on carriage center point, described some deflector sides are provided with fluting, and deflector is welded on support both sides by fluting；Described deflector is arranged in heat exchange tube cylinder together with support, conical baffle is divided into larger diameter end and smaller diameter end, major diameter one end is towards steam turbine direction, deflector minor diameter one end is towards condenser direction, the guiding device has simple for structure, and flow deflector angle passes through particular design, with high content of technology, easily make and installation, it is economical and practical the features such as；Reduce the high speed in outer shroud；Improve central area speed；Influence of the central vortex region to tube bank is completely eliminated, prevents from restraining brittle fracture.
Description
Technical field
Steam turbine Fluid Science is the utility model is related to, specifically a kind of gas turbine exhaust gas water conservancy diversion, fairing.
Background technology
Air compressor machine, it is PTA device Large-scale machine sets, mainly by expanding machine, motor（Generator）, compressor and Steam Turbine
Into steam turbine is connected with sea water condenser, and the condenser heat-exchange pipes material is titanium, and specification is φ 19*0.8mm, heat exchanger tube
Wall thickness is relatively thin.
In process of production, the accident that sea water condenser continuously, repeatedly leaks, causes steam condensate CL ions exceeded
Can not reuse, have a strong impact on the normal operation of production.
Sea water condenser is continuous, it is as follows that leakage concrete analysis repeatedly occurs：
Before transformation, steam turbine is connected by straight length with sea water condenser, and the exhaust end of steam turbine is provided with bearing block, by
Low in winter seawater inflow temperature, turbine discharge back pressure is less than design point；Although turbine discharge amount does not arrive design point, this row
Steam discharge specific volume under steam pressure is big, and air intake flow velocity is very high, if considering further that the influence of bearing block, steam drain local velocity can be more
It is high.Heat exchanger tube broken cause analysis：After unit parking, straight length is cut, blank off is simultaneously welded, and full water is carried out to condenser
It was found that the fracture of titanium tube fracture is neat, can consider from the fracture form of tube bank：Pipe is brittle fracture caused by fatigue.It is and tired
Labor fracture is that the vibration ejected by air-flow produces, while has higher stress in the place of fracture, and such accident will occur
The reason for sum up it is as follows：
1st, the fast place of steam flow, higher reunion speed, it is meant that pipe herein bears greater impact power, higher
Stress；
2nd, vibration stimulus source, each field amount of high speed steam flow itself will fluctuate, and it is also one of major reason to breathe heavily stream vortex.
Steam turbine exports to condenser center line（About 5 meters）In this section, stopped by steam turbine rear bearing block, center
There is larger low speed vortex in domain；There is obvious line of demarcation high-speed region low regime, and central speed is low, and outer shroud speed is high.
The content of the invention
In order to eliminate center low speed vortex region, and uniform steam flow, by changing the smooth distribution of air-flow, in condenser tube
Guiding device is set up in beam air intake position, to guide steam flow into speed relatively low intermediate region, and then eliminates central vortex area
Influence of the domain to tube bank, the impact of exchange heat pipe bundle is reduced, prevent from restraining brittle fracture.
To achieve these goals, technical scheme is used by the utility model：A kind of gas turbine exhaust gas water conservancy diversion, rectification
Device, including heat exchange tube cylinder, some deflectors, support；Described some deflectors are arranged respectively to taper barrel structure, described
Some taper tubular deflector diameters it is different, described deflector taper is that deflector inclined plane is in conically shaped axial centre
30-45 degree angles, described support are " rice " shape, and diameter is externally arranged from small to large successively centered on carriage center point
Deflector, described some deflector sides be provided with fluting, deflector by fluting be welded on support both sides；Described leads
Flowing plate is arranged in heat exchange tube cylinder together with support, and conical baffle is divided into larger diameter end and smaller diameter end, major diameter one end court
To steam turbine direction, deflector minor diameter one end carries out deflector closing in water conservancy diversion towards condenser direction with this, and air-flow is equal
It is even, smoothly guide the low vortex region of speed into, reduce the impact to tube bank.
Described deflector is arranged on inside the straight length between condenser and bearing seat of steam turbine.
Guiding device of the air-flow of steam turbine Jing Guo this particular design, can release the generation of vortex phenomenon, make air-flow equal
It is even to be distributed and smoothly through tube bank, reduce the impact to tube bank.
The beneficial effects of the utility model are：
The guiding device has simple for structure, and flow deflector angle passes through particular design, with high content of technology, easily makes and peace
Dress, it is economical and practical the features such as；Reduce the high speed in outer shroud；Improve central area speed；Central vortex region is completely eliminated to pipe
The influence of beam, prevent from restraining brittle fracture.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Fig. 1 side view.
Fig. 3 is guiding device air flow direction schematic diagram in installation site and unit in condenser.
In figure, 1, heat exchange tube cylinder, 2, deflector, 3, support, 4, condenser, 5, steam turbine, 6, bearing block.
Embodiment
The utility model is described in detail with reference to accompanying drawing.
A kind of gas turbine exhaust gas water conservancy diversion, fairing as depicted, including heat exchange tube cylinder 1, some deflectors 2, branch
Frame 3；Described some deflectors 2 are arranged respectively to taper barrel structure, and described each diameter of taper tubular deflector 3 is different, institute
The support 3 stated is " rice " shape, is externally arranged the deflector 2 of diameter from small to large, institute successively centered on the central point of support 3
Some deflector sides stated are provided with fluting, and deflector 2 is welded on the both sides of support 3 by fluting；Described deflector 2 together with
Support 3 is arranged in heat exchange tube cylinder 1, and conical baffle 2 is divided for larger diameter end and smaller diameter end, and major diameter one end is towards steamer
The direction of machine 5, deflector minor diameter one end is towards the direction of condenser 4.
Inside straight length between condenser and bearing seat of steam turbine
Described deflector 2 is arranged on the straight tube fragment position of condenser 4, straight length rear portion connection steam turbine 5, before steam turbine 5
Bearing block 6 is provided between end and condenser 4.
This steam flow guiding device is positioned by the way of field assembly, spot welding.First spot welding, weld again and do PT detections
Erection sequence can ensure that guiding device is safe and stable, reliably comes into operation.
Claims (3)
1. a kind of gas turbine exhaust gas water conservancy diversion, fairing, it is characterised in that including heat exchange tube cylinder, some deflectors, support；Institute
Some deflectors stated are arranged respectively to taper barrel structure, and described some taper tubular deflector diameters are different, described branch
Frame is " rice " shape, is externally arranged the deflector of diameter from small to large successively centered on carriage center point, described is some
Deflector side is provided with fluting, and deflector is welded on support both sides by fluting；Described deflector is arranged on together with support
Exchange heat in tube cylinder, conical baffle is divided into larger diameter end and smaller diameter end, and major diameter one end is towards steam turbine direction, deflector
Minor diameter one end is towards condenser direction.
2. a kind of gas turbine exhaust gas water conservancy diversion according to claim 1, fairing, it is characterised in that described deflector is set
Put in condenser straight tube fragment position, straight length rear portion connection steam turbine, bearing block is provided between steam turbine front end and condenser.
3. a kind of gas turbine exhaust gas water conservancy diversion according to claim 1, fairing, it is characterised in that described deflector cone
Degree is deflector inclined plane and conically shaped longitudinal center line is in 30-45 degree angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720379452.4U CN206753667U (en) | 2017-04-12 | 2017-04-12 | A kind of gas turbine exhaust gas water conservancy diversion, fairing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720379452.4U CN206753667U (en) | 2017-04-12 | 2017-04-12 | A kind of gas turbine exhaust gas water conservancy diversion, fairing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206753667U true CN206753667U (en) | 2017-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720379452.4U Active CN206753667U (en) | 2017-04-12 | 2017-04-12 | A kind of gas turbine exhaust gas water conservancy diversion, fairing |
Country Status (1)
| Country | Link |
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| CN (1) | CN206753667U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590785A (en) * | 2018-03-05 | 2018-09-28 | 杭州国能汽轮工程有限公司 | A kind of design method of constant-current stabilizer and constant-current stabilizer |
| CN109404053A (en) * | 2018-11-27 | 2019-03-01 | 德阳九鼎电气有限公司 | A kind of diaphragm for steam turbine |
| CN111780086A (en) * | 2020-07-13 | 2020-10-16 | 中国船舶重工集团公司第七0三研究所 | Be arranged in light and heat power plant steam generation system steam pocket to prevent swirl device |
-
2017
- 2017-04-12 CN CN201720379452.4U patent/CN206753667U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590785A (en) * | 2018-03-05 | 2018-09-28 | 杭州国能汽轮工程有限公司 | A kind of design method of constant-current stabilizer and constant-current stabilizer |
| CN109404053A (en) * | 2018-11-27 | 2019-03-01 | 德阳九鼎电气有限公司 | A kind of diaphragm for steam turbine |
| CN111780086A (en) * | 2020-07-13 | 2020-10-16 | 中国船舶重工集团公司第七0三研究所 | Be arranged in light and heat power plant steam generation system steam pocket to prevent swirl device |
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