CN206016874U - Power plant steam turbine low pressure (LP) cylinder bracing means - Google Patents
Power plant steam turbine low pressure (LP) cylinder bracing means Download PDFInfo
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- CN206016874U CN206016874U CN201620993435.5U CN201620993435U CN206016874U CN 206016874 U CN206016874 U CN 206016874U CN 201620993435 U CN201620993435 U CN 201620993435U CN 206016874 U CN206016874 U CN 206016874U
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- low pressure
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- steam turbine
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Abstract
Power plant steam turbine low pressure (LP) cylinder bracing means.It is related to power plant steam turbine technical field, it is characterised in that：Low pressure (LP) cylinder cylinder body, external stability frame and support bar, the side of described low pressure (LP) cylinder cylinder body is arranged to the funnel-form that caves in, the sidepiece of low pressure (LP) cylinder cylinder body is provided with circular hole, described external stability frame is fixedly installed on side and the lateral part of low pressure cylinder body, and described support bar is fixedly installed on the medial wall of low pressure (LP) cylinder cylinder body and extends on the inside of which on side at angle.The utility model has the advantages that implementing simply, versatility is stronger, can improve the rigidity of lp outer casing, reduces low pressure (LP) cylinder deflection in operation.
Description
Technical field
This utility model is related to power plant steam turbine technical field, and in particular to a kind of power plant steam turbine low pressure (LP) cylinder reinforces dress
Put.
Background technology
Temperature of power plant steam turbine has plenty of resuperheat, single shaft, four steam discharge of triplex, double back pressures, a condensing turbine group.
This steam turbine has that lp outer casing intensity is not enough, can produce very big deformation, cause axle after condenser evacuation
End abrasion leakage vapour or leakage vacuum.According to mechanical model result of calculation, low pressure (LP) cylinder axle envelope can be because of cylinder after being in condenser evacuation
Deformation occurs, and largest amount of subsidence can reach 1.04mm, and the deflection greatly exceed the axle envelope of 0.50 ± 0.05mm
Gap, so the abrasion of low pressure (LP) cylinder axle envelope will be inevitable in operation, so as to cause low-pressure shaft leak sealing steam or leakage vacuum.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of lp outer casing is reinforced, low pressure can be improved
The rigidity of outer shell, reduces the power plant steam turbine low pressure (LP) cylinder bracing means of low pressure (LP) cylinder deflection in operation.
For solving above-mentioned technical problem, this utility model adopts following technical scheme：
Power plant steam turbine low pressure (LP) cylinder bracing means, it is characterised in that：Including low pressure (LP) cylinder cylinder body, external stability frame and support
Bar, the side of described low pressure (LP) cylinder cylinder body are arranged to the funnel-form that caves in, and the sidepiece of low pressure (LP) cylinder cylinder body is provided with circular hole, described
External stability frame is fixedly installed on the side of low pressure cylinder body and lateral part, and described support bar is fixedly installed on low pressure (LP) cylinder cylinder body
Medial wall on and extend on the inside of which on side at angle.
Described support bar and the integrative-structure that low pressure (LP) cylinder cylinder body is welding.
Described external stability frame is the bead structures of welding.
Structure of the described low pressure (LP) cylinder cylinder body for opposite opened, described external stability frame is corresponding with low pressure (LP) cylinder cylinder body
The structure of opposite opened.
This utility model passes through to add external stability frame outside low pressure (LP) cylinder, in the side that low pressure (LP) cylinder internal welding supports rod member
Method, reduces low pressure (LP) cylinder deflection in operation by the rigidity of raising low pressure (LP) cylinder.Calculated by mechanical model, after reinforcing
After condenser evacuation, at low pressure (LP) cylinder axle envelope, largest amount of subsidence can be reduced to 0.40mm or so to low pressure (LP) cylinder, less than 0.50 ±
The axle envelope gap of 0.05mm, can solve the wear problem of low pressure (LP) cylinder axle envelope substantially.
The beneficial effects of the utility model are：The utility model has the advantages that implementing simply, versatility is stronger, can improve low
The rigidity of pressure outer shell, reduces low pressure (LP) cylinder deflection in operation.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation on the other direction of this utility model Fig. 1.
Specific embodiment
In order that technological means, creation new feature, reached purpose and effect that this utility model is realized are easy to understand,
With reference to being specifically illustrating, this utility model is expanded on further.
As illustrated in fig. 1 and 2, power plant steam turbine low pressure (LP) cylinder bracing means, including low pressure (LP) cylinder cylinder body 1, external stability frame 2 and props up
Strut 3, the side of low pressure (LP) cylinder cylinder body 1 are arranged to the funnel-form that caves in, and the sidepiece of low pressure (LP) cylinder cylinder body 1 is provided with circular hole 4, outside solid
Determine side and lateral part that frame 2 is fixedly installed on low pressure cylinder body 1, support bar 3 is fixedly installed on the medial wall of low pressure (LP) cylinder cylinder body 1
Upper and extend on the inside of which on side at angle.Support bar 3 and the integrative-structure that low pressure (LP) cylinder cylinder body 1 is welding.External stability frame 2 is
The bead structures of welding.Structure of the low pressure (LP) cylinder cylinder body 1 for opposite opened, external stability frame 2 are corresponding with low pressure (LP) cylinder cylinder body 1 right
The structure of open type.
Ultimate principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that this utility model is not restricted to the described embodiments, described in above-described embodiment and description
Structure of the present utility model and principle are described simply, on the premise of without departing from this utility model spirit and scope, this practicality
New also have various changes and modifications, these changes and improvements are both fallen within the range of claimed this utility model.This reality
With new claimed scope by appending claims and its equivalent thereof.
Claims (4)
1. power plant steam turbine low pressure (LP) cylinder bracing means, it is characterised in that：Including low pressure (LP) cylinder cylinder body, external stability frame and support bar,
The side of described low pressure (LP) cylinder cylinder body is arranged to the funnel-form that caves in, and the sidepiece of low pressure (LP) cylinder cylinder body is provided with circular hole, and described is outer
Portion's fixed mount is fixedly installed on the side of low pressure cylinder body and lateral part, and described support bar is fixedly installed on low pressure (LP) cylinder cylinder body
On medial wall and extend on the inside of which on side at angle.
2. power plant steam turbine low pressure (LP) cylinder bracing means according to claim 1, it is characterised in that：Described support bar with low
Cylinder pressure cylinder body is the integrative-structure of welding.
3. power plant steam turbine low pressure (LP) cylinder bracing means according to claim 1, it is characterised in that：Described external stability frame
For the bead structures that welds.
4. power plant steam turbine low pressure (LP) cylinder bracing means according to claim 1, it is characterised in that：Described low pressure (LP) cylinder cylinder body
For the structure of opposite opened, described external stability frame is the structure of the opposite opened corresponding with low pressure (LP) cylinder cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620993435.5U CN206016874U (en) | 2016-08-29 | 2016-08-29 | Power plant steam turbine low pressure (LP) cylinder bracing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620993435.5U CN206016874U (en) | 2016-08-29 | 2016-08-29 | Power plant steam turbine low pressure (LP) cylinder bracing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206016874U true CN206016874U (en) | 2017-03-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620993435.5U Active CN206016874U (en) | 2016-08-29 | 2016-08-29 | Power plant steam turbine low pressure (LP) cylinder bracing means |
Country Status (1)
| Country | Link |
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| CN (1) | CN206016874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110462167A (en) * | 2017-07-13 | 2019-11-15 | 三菱日立电力系统株式会社 | Steam turbine system |
-
2016
- 2016-08-29 CN CN201620993435.5U patent/CN206016874U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110462167A (en) * | 2017-07-13 | 2019-11-15 | 三菱日立电力系统株式会社 | Steam turbine system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |