CN206267886U - A kind of three-exhauster turbine low pressure cylinder with low pressure optical axis rotor - Google Patents
A kind of three-exhauster turbine low pressure cylinder with low pressure optical axis rotor Download PDFInfo
- Publication number
- CN206267886U CN206267886U CN201621255686.XU CN201621255686U CN206267886U CN 206267886 U CN206267886 U CN 206267886U CN 201621255686 U CN201621255686 U CN 201621255686U CN 206267886 U CN206267886 U CN 206267886U
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- CN
- China
- Prior art keywords
- low pressure
- shaft coupling
- rotor
- optical axis
- circular body
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Abstract
A kind of three-exhauster turbine low pressure cylinder with low pressure optical axis rotor,The utility model is related to a kind of three-exhauster turbine low pressure cylinder,The utility model gradually increases to solve power plant's heat demand amount in the prior art,The cold end loss that turbine circulation water is taken away during the heat supply phase is larger,Heat supply network heat capacity is low,Unit operation heat consumption is larger,Therefore the problem for needing to be improved low pressure (LP) cylinder mesolow rotor and rotor coupling,It includes low pressure optical axis rotor,First shaft coupling,Second shaft coupling,Second shaft coupling inner sleeve,Multiple special bolts and multiple hydraulic bolts,First shaft coupling is circular body,And the periphery of circular body one end is along the circumferential direction machined with first annular projection,First annular projection is along the circumferential direction uniformly machined with multiple hydraulic bolt mounting holes,Second shaft coupling is circular body,And the second annular protrusion and the 3rd annular protrusion the utility model are along the circumferential direction machined with the periphery at circular body two ends respectively for steam turbine field.
Description
Technical field
The utility model is related to a kind of three-exhauster turbine low pressure cylinder, and in particular to a kind of with low pressure optical axis rotor three
Exhaust turbine low pressure (LP) cylinder.
Background technology
The cylinder three-exhauster of 200MW resuperheats three, No. 1 low pressure (LP) cylinder of condensing turbine and intermediate pressure cylinder are one in the prior art
Body structure, No. 2 and No. 3 low pressure (LP) cylinders it is symmetrical, the cylinder three-exhauster of resuperheat three, condensing turbine are applied in power plant, vapour
Turbine wheel is made up of the part of high, medium and low voltage three, high pressure rotor use Integral forge type structure, mesolow rotor using monobloc forging,
Combined set formula, other two low pressure rotor is to use sleeve type structure, and power plant's heat demand amount gradually increases in the prior art
Greatly, the cold end loss that turbine circulation water is taken away during the heat supply phase is larger, and heat supply network heat capacity is low, and unit operation heat consumption is larger, because
This needs to be improved low pressure (LP) cylinder mesolow rotor and rotor coupling.
Utility model content
The utility model gradually increases to solve power plant's heat demand amount in the prior art, steam turbine cycle during the heat supply phase
The cold end loss that water is taken away is larger, and heat supply network heat capacity is low, and unit operation heat consumption is larger, it is therefore desirable to which low pressure (LP) cylinder mesolow is turned
The problem that son and rotor coupling are improved, and then a kind of three-exhauster steam turbine low-pressure with low pressure optical axis rotor is provided
Cylinder.
The utility model is adopted the technical scheme that to solve the above problems：It includes low pressure optical axis rotor, the first shaft coupling
Device, second shaft coupling, second shaft coupling inner sleeve, multiple special bolts and multiple hydraulic bolts, first shaft coupling are circular body,
And the periphery of circular body one end is along the circumferential direction machined with first annular projection, first annular projection is along the circumferential direction uniform
It is machined with multiple hydraulic bolt mounting holes, second shaft coupling is edge respectively on circular body, and the periphery at circular body two ends
Circumferencial direction is machined with the second annular protrusion and the 3rd annular protrusion, positioned at the second annular protrusion of circular body and the 3rd annular
Bending section is machined between projection, the second annular protrusion is along the circumferential direction uniformly machined with special bolt mounting hole, the 3rd annular
Projection is along the circumferential direction uniformly machined with hydraulic bolt mounting hole, in first annular raised upper each hydraulic bolt mounting hole respectively
It is provided with a hydraulic bolt, it is first annular to project through multiple hydraulic bolts and be connected with three-exhauster Steam Turbine Through IP Admission axle portion,
A hydraulic bolt is respectively equipped with three annular protrusions in each hydraulic bolt mounting hole, the 3rd annular protrusion passes through multiple hydraulic pressure
Bolt is connected with generator axle portion, and second shaft coupling inner sleeve is circular body, and one end periphery of circular body is circumferentially square
Raised to the uniform fourth annular that is machined with, the raised along the circumferential direction uniform multiple special bolt mounting holes of processing of fourth annular are low
Press polish axle rotor is arranged on the cylinder body of low pressure (LP) cylinder by spring bearing, and first shaft coupling is by being bonded female connector mounted in low pressure optical axis
On one end of rotor, second shaft coupling inner sleeve is mounted on the other end of low pressure optical axis rotor by being bonded female connector, second shaft coupling
It is sleeved in second shaft coupling and puts, and multiple special bolt mounting holes on the second annular protrusion are raised with fourth annular special
It is correspondingly arranged with bolt mounting holes, and second shaft coupling is fixedly connected with second shaft coupling inner sleeve by multiple special bolts.
The beneficial effects of the utility model are：
1st, the utility model unit cold source energy major part when working the heat supply phase is utilized, and unit heat capacity is significantly
Improve.
2nd, low pressure optical axis rotor 1 of the present utility model uses sleeve structure, is respectively mounted on rotor 1-1 in the utility model
There are the 6th counterweight sleeve 1-7, two the first counterweight sleeve 1-2, two the second counterweight sleeve 1-3, two the 3rd counterweight sleeve 1-
4th, two the 4th counterweight sleeve 1-5 and two the 5th counterweight sleeve 1-6 carry out counterweight, it is ensured that the low pressure optical axis rotor 1 after improvement
The momentum balance for ensureing low pressure (LP) cylinder identical with former rotor weight, the weight of low pressure optical axis rotor of the present utility model, Yang Du and faces
Boundary's rotating speed is identical with former low pressure rotor, and the diameter of axle is identical with former unit diameter of axle size before and after the low pressure optical axis rotor 1 of utility model, because
This is not required to change the radial journal bearing of low pressure (LP) cylinder, the convenient replacing to low pressure optical axis rotor 1
3rd, the interchangeability of former low pressure rotor and new design low pressure optical axis rotor, first shaft coupling 3, second shaft coupling 4 are ensured
It is attached using hydraulic bolt structure.
4th, the cold end loss that recirculated water is taken away is reduced, expands heat supply network heat capacity, reduce unit operation heat consumption, realize electricity
Factory's energy-saving and emission-reduction, water-saving target.Meet national " energy-saving and emission-reduction ", reduce environmental pollution and create the original of economic benefit
Then, while reducing unit gross coal consumption rate and production cost, the operating index and economic benefit of power plant are improved.
Brief description of the drawings
Fig. 1 is the low pressure (LP) cylinder schematic diagram of the utility model 200MW three-exhauster steam turbines, and Fig. 2 is low pressure optical axis rotor 1,
One shaft coupling 3, second shaft coupling 4 and the connection diagram of second shaft coupling inner sleeve 6.
Specific embodiment
Specific embodiment one：Present embodiment is illustrated with reference to Fig. 1-Fig. 2, one kind described in present embodiment carries low pressure light
The three-exhauster turbine low pressure cylinder of axle rotor, it includes low pressure optical axis rotor 1, first shaft coupling 3, second shaft coupling 4, second
Axle device inner sleeve 6, multiple special bolt 7 and multiple hydraulic bolts 5, first shaft coupling 3 is circular body, and circular body one end
Periphery is along the circumferential direction machined with first annular raised 3-1, and first annular raised 3-1 is along the circumferential direction uniformly machined with multiple
Hydraulic bolt mounting hole, second shaft coupling 4 is along the circumferential direction to add respectively on circular body, and the periphery at circular body two ends
Work has the second annular protrusion 4-1 and the 3rd annular protrusion 4-2, positioned at the annulars of the second annular protrusion 4-1 of circular body and the 3rd
Bending section is machined between raised 4-2, the second annular protrusion 4-1 is along the circumferential direction uniformly machined with special bolt mounting hole, the
Three annular protrusion 4-2 are along the circumferential direction uniformly machined with hydraulic bolt mounting hole, each hydraulic bolt on first annular raised 3-1
A hydraulic bolt 5 is respectively equipped with mounting hole, first annular raised 3-1 passes through multiple hydraulic bolts 5 and three-exhauster steam turbine
Intermediate pressure cylinder axle portion is connected, and is respectively equipped with a hydraulic bolt 5 on the 3rd annular protrusion 4-2 in each hydraulic bolt mounting hole, the
Three annular protrusion 4-2 pass through multiple hydraulic bolts 5 and be connecteds with generator axle portion, and second shaft coupling inner sleeve 6 is circle body, and round
One end periphery of shape body is along the circumferential direction uniformly machined with fourth annular projection 6-1, and fourth annular projection 6-1 is circumferentially square
To the multiple special bolt mounting holes of uniform processing, low pressure optical axis rotor 1 is arranged on the cylinder body of low pressure (LP) cylinder by spring bearing, the
By being bonded female connector on one end of low pressure optical axis rotor 1, second shaft coupling inner sleeve 6 is filled one shaft coupling 3 by being bonded female connector
On the other end of low pressure optical axis rotor 1, second shaft coupling 4 is sleeved in second shaft coupling inner sleeve 6, and the second annular protrusion 4-
Multiple special bolt mounting holes on 1 are correspondingly arranged with special bolt mounting hole on fourth annular projection 6-1, and second shaft coupling
4 pass through multiple special bolts 7 with second shaft coupling inner sleeve 6 is fixedly connected.
Specific embodiment two：Present embodiment is illustrated with reference to Fig. 1-Fig. 2, one kind described in present embodiment carries low pressure light
The three-exhauster turbine low pressure cylinder of axle rotor, the second annular protrusion 4-1 between bending section circular body inwall with diameter greater than
Bending section to circular body between the 3rd annular protrusion 4-2 inner diameter, other compositions and annexation and specific embodiment party
Formula one is identical.
Specific embodiment three：Present embodiment is illustrated with reference to Fig. 1-Fig. 2, one kind described in present embodiment carries low pressure light
The three-exhauster turbine low pressure cylinder of axle rotor, low pressure optical axis rotor 1 includes rotor 1-1, the 6th counterweight sleeve 1-7, the first counterweight
Sleeve 1-2, the second counterweight sleeve 1-3, the 3rd counterweight sleeve 1-4, the 4th counterweight sleeve 1-5 and the 5th counterweight sleeve 1-6, low pressure
Multiple shoulders are sequentially provided with optical axis rotor 1 from left to right, the 6th counterweight sleeve 1-7 is fixedly set in rotor 1-1 middle parts, by turning
To the two ends of rotor 1-1, symmetrical set turns the 5th counterweight sleeve 1-6, the 4th counterweight sleeve 1-5, the 3rd successively respectively at sub- 1-1 middle parts
Counterweight sleeve 1-4, the second counterweight sleeve 1-3 and the first counterweight sleeve 1-2, other compositions and annexation and specific embodiment
One is identical.
Claims (3)
1. a kind of three-exhauster turbine low pressure cylinder with low pressure optical axis rotor, it is characterised in that：It includes low pressure optical axis rotor
(1), first shaft coupling (3), second shaft coupling (4), second shaft coupling inner sleeve (6), multiple special bolts (7) and multiple hydraulic pressure spiral shells
Bolt (5), first shaft coupling (3) is circular body, and circular body one end periphery be along the circumferential direction machined with it is first annular
Raised (3-1), first annular projection (3-1) is along the circumferential direction uniformly machined with multiple hydraulic bolt mounting holes, second shaft coupling
(4) be circular body, and be along the circumferential direction machined with respectively on the periphery at circular body two ends the second annular protrusion (4-1) and
3rd annular protrusion (4-2), processes between second annular protrusion (4-1) and the 3rd annular protrusion (4-2) of circular body
There is bending section, the second annular protrusion (4-1) is along the circumferential direction uniformly machined with special bolt mounting hole, the 3rd annular protrusion (4-
2) hydraulic bolt mounting hole is along the circumferential direction uniformly machined with, on first annular projection (3-1) in each hydraulic bolt mounting hole
A hydraulic bolt (5) is respectively equipped with, first annular projection (3-1) passes through in multiple hydraulic bolts (5) and three-exhauster steam turbine
Cylinder pressure axle portion is connected, and is respectively equipped with a hydraulic bolt (5) on the 3rd annular protrusion (4-2) in each hydraulic bolt mounting hole,
3rd annular protrusion (4-2) passes through multiple hydraulic bolts (5) and is connected with generator axle portion, and second shaft coupling inner sleeve (6) is circle
Body, and one end periphery of circular body is along the circumferential direction uniformly machined with fourth annular projection (6-1), fourth annular is raised
(6-1) is along the circumferential direction uniform to process multiple special bolt mounting holes, and low pressure optical axis rotor (1) is arranged on low by spring bearing
On the cylinder body of cylinder pressure, first shaft coupling (3) is mounted on one end of low pressure optical axis rotor (1) by being bonded female connector, second shaft coupling
By being bonded female connector on the other end of low pressure optical axis rotor (1), second shaft coupling (4) is sleeved on the second shaft coupling to inner sleeve (6)
In device inner sleeve (6), and in multiple special bolt mounting holes on the second annular protrusion (4-1) and fourth annular projection (6-1) specially
It is correspondingly arranged with bolt mounting holes, and second shaft coupling (4) and second shaft coupling inner sleeve (6) are solid by multiple special bolts (7)
Fixed connection.
2. a kind of three-exhauster turbine low pressure cylinder with low pressure optical axis rotor according to claim 1, it is characterised in that：The
Second ring projection (4-1) between bending section circular body inwall with diameter greater than bending section to the 3rd annular protrusion (4-2) it
Between circular body inner diameter.
3. a kind of three-exhauster turbine low pressure cylinder with low pressure optical axis rotor according to claim 1, it is characterised in that：It is low
Press polish axle rotor (1) includes rotor (1-1), the 6th counterweight sleeve (1-7), the first counterweight sleeve (1-2), the second counterweight sleeve
(1-3), the 3rd counterweight sleeve (1-4), the 4th counterweight sleeve (1-5) and the 5th counterweight sleeve (1-6), low pressure optical axis rotor (1)
On be sequentially provided with multiple shoulders from left to right, the 6th counterweight sleeve (1-7) is fixedly set in rotor (1-1) middle part, by rotor (1-
1) to the two ends of rotor (1-1), symmetrical set turns a 5th counterweight sleeve (1-6), the 4th counterweight sleeve (1-5), the successively respectively at middle part
Three counterweight sleeves (1-4), the second counterweight sleeve (1-3) and the first counterweight sleeve (1-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621255686.XU CN206267886U (en) | 2016-11-22 | 2016-11-22 | A kind of three-exhauster turbine low pressure cylinder with low pressure optical axis rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621255686.XU CN206267886U (en) | 2016-11-22 | 2016-11-22 | A kind of three-exhauster turbine low pressure cylinder with low pressure optical axis rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206267886U true CN206267886U (en) | 2017-06-20 |
Family
ID=59039825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621255686.XU Expired - Fee Related CN206267886U (en) | 2016-11-22 | 2016-11-22 | A kind of three-exhauster turbine low pressure cylinder with low pressure optical axis rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206267886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412554A (en) * | 2020-11-23 | 2021-02-26 | 东方电气集团东方汽轮机有限公司 | Three-cylinder three-exhaust steam turbine capable of switching circulating water heat supply and switching method thereof |
-
2016
- 2016-11-22 CN CN201621255686.XU patent/CN206267886U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412554A (en) * | 2020-11-23 | 2021-02-26 | 东方电气集团东方汽轮机有限公司 | Three-cylinder three-exhaust steam turbine capable of switching circulating water heat supply and switching method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 Termination date: 20171122 |