CN208396760U - A kind of two-way flexible support structure of low parameter back pressure turbine - Google Patents
A kind of two-way flexible support structure of low parameter back pressure turbine Download PDFInfo
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- CN208396760U CN208396760U CN201821171719.1U CN201821171719U CN208396760U CN 208396760 U CN208396760 U CN 208396760U CN 201821171719 U CN201821171719 U CN 201821171719U CN 208396760 U CN208396760 U CN 208396760U
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- back pressure
- support structure
- low parameter
- flexible support
- steam turbine
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- 244000082490 Proboscidea louisianica Species 0.000 abstract description 6
- 235000015926 Proboscidea louisianica ssp. fragrans Nutrition 0.000 abstract description 6
- 235000015925 Proboscidea louisianica subsp. louisianica Nutrition 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000010687 lubricating oil Substances 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
A kind of two-way flexible support structure of low parameter back pressure turbine, it is related to a kind of two-way flexible support structure of steam turbine, and in particular to a kind of two-way flexible support structure of low parameter back pressure turbine.The utility model in order to reduce low parameter back pressure turbine sliding key system or one-way flexible bearing and ram's horn structure maintenance and maintenance work, thoroughly eliminate stuck phenomenon.The utility model includes two groups of bearing units for being symmetricly set on steam turbine center line two sides, bearing unit described in every group includes the first nut, the first bolt, double flexible backbones, the second nut and the second bolt, the upper end of double flexible backbones is detachably connected by the lug of the first nut and the first bolt and steam turbine, and the lower end of double flexible backbones is detachably connected by the common bed of the second nut and the second bolt and steam turbine.The utility model belongs to steam turbine equipment field.
Description
Technical field
The utility model relates to a kind of two-way flexible support structures of steam turbine, and in particular to a kind of low parameter back pressure turbine
Two-way flexible support structure, belongs to steam turbine equipment field.
Background technique
Low parameter back pressure turbine refer to initial steam pressure between 0.7MPa~1MPa, exhaust steam pressure 0.1MPa~
The back pressure turbine of 0.3MPa.Discontinuity heat supply is needed in China certain areas, each generating set is to improve the thermal efficiency, all one after another
Carry out heat supply transformation, and low parameter steam turbine can be taken out the four of the above Turbo-generator Set of 600MW and 1000MW power grade and steam
Vapour drives the acting such as various pumps, blower, compressor and generator or power generation, replaces simultaneously on the basis of meeting heat demand
For temperature-decreased pressure reducer, the cascade utilization of the energy is realized, greatly improve energy utilization rate, and can also be achieved the unit outage phase
Between, the original system thermal efficiency is not had an impact.
Steam turbine supporting structure is mostly sliding key system or one-way flexible bearing and ram's horn structure.And sliding key system needs periodically
Inject lubricating oil, increase the work such as maintenance and maintenance, and a other steam turbine supporting structure can often cause it is stuck existing
As bringing hidden danger for Turbine Safety operation.One-way flexible bearing and ram's horn structure, to consider that lateral expansion, ram's horn are in peace
When dress will there are certain gaps, but similarly will appear stuck phenomenon since runing time is longer.
Utility model content
The utility model supports and ram's horn structure to reduce low parameter back pressure turbine sliding key system or one-way flexible
Maintenance and maintenance work, thoroughly eliminate stuck phenomenon, and then propose a kind of two-way flexible support structure of low parameter back pressure turbine.
The utility model adopts the technical scheme that in order to solve the above problem: the utility model includes being symmetricly set on steamer
Two groups of bearing units of machine center line two sides, bearing unit described in every group include the first nut, the first bolt, double flexible backbones,
The upper end of second nut and the second bolt, double flexible backbones can by the lug of the first nut and the first bolt and steam turbine
The lower end of dismantling connection, double flexible backbones is detachably connected by the common bed of the second nut and the second bolt and steam turbine.
Further, the angle between the side of double flexible backbones and steam turbine center line is 0 °~90 °.
Further, 45 ° of the angle between the side of double flexible backbones and steam turbine center line.
Further, the utility model further includes cushion block, and lower end surface and the steam turbine public affairs of double flexible backbones are arranged in cushion block
With between the upper surface of pedestal.
Further, the rectangular plate body that double flexible backbones are arranged side by side vertically by two forms.
Further, the distance between two rectangular plate bodies are 6.5mm~8mm.
Further, the distance between two rectangular plate bodies are 7.2mm.
The beneficial effects of the utility model are: the utility model instead of sliding key system and ram's horn structure, does not need plus profit
Lubricating oil, its bearing face contact is tight, very close to each other, therefore can not generate lateral and vertical deviation, to eliminate stuck
Phenomenon improves the security reliability and maintainability of unit.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is sectional view along A-A in Fig. 1.
Specific embodiment
Specific embodiment 1: illustrating present embodiment, a kind of low parameter back described in present embodiment in conjunction with Fig. 1 and Fig. 2
Pressing the two-way flexible support structure of steam turbine includes two groups of bearing units for being symmetricly set on steam turbine center line two sides, described in every group
Bearing unit includes the first nut 2, the first bolt 3, double flexible backbones 5, the second nut 6 and the second bolt 9, double flexible backbones 5
Upper end be detachably connected by the lug 10 of the first nut 2 and the first bolt 3 and steam turbine 1, under double flexible backbones 5
End is detachably connected by the common bed 8 of the second nut 6 and the second bolt 9 and steam turbine.
Specific embodiment 2: illustrating present embodiment, a kind of low parameter back described in present embodiment in conjunction with Fig. 1 and Fig. 2
Press the two-way flexible support structure of steam turbine double flexible backbones 5 side and steam turbine center line 4 between included angle B for 0 °~
90°.Other compositions and connection relationship are same as the specific embodiment one.
Specific embodiment 3: illustrating present embodiment, a kind of low parameter back described in present embodiment in conjunction with Fig. 1 and Fig. 2
Press 45 ° of included angle B between the side and steam turbine center line 4 of double flexible backbones 5 of the two-way flexible support structure of steam turbine.It is other
Composition and connection relationship are identical with embodiment two.
Specific embodiment 4: illustrating present embodiment, a kind of low parameter back described in present embodiment in conjunction with Fig. 1 and Fig. 2
The pressure two-way flexible support mechanism of steam turbine further includes cushion block 7, and lower end surface and the steam turbine public affairs of double flexible backbones 5 are arranged in cushion block 7
Between upper surface with pedestal 8.Other compositions and connection relationship are same as the specific embodiment one.
Specific embodiment 5: illustrating present embodiment, a kind of low parameter back described in present embodiment in conjunction with Fig. 1 and Fig. 2
The rectangular plate body 5-1 for pressing double flexible backbones 5 of the two-way flexible support structure of steam turbine to be arranged side by side vertically by two is formed.
Other compositions and connection relationship are same as the specific embodiment one.
Specific embodiment 6: illustrating present embodiment, a kind of low parameter back described in present embodiment in conjunction with Fig. 1 and Fig. 2
Pressing the distance between two rectangular plate body 5-1 of the two-way flexible support structure of steam turbine H is 6.5mm~8mm.It is other composition and
Connection relationship is identical as specific embodiment five.
Specific embodiment 7: illustrating present embodiment, a kind of low parameter back described in present embodiment in conjunction with Fig. 1 and Fig. 2
Pressing the distance between two rectangular plate body 5-1 of the two-way flexible support structure of steam turbine H is 7.2mm.Other compositions and connection
Relationship is identical as specific embodiment six.
Working principle
Low parameter back pressure turbine rear portion is dead point, and after expanded by heating, steam turbine 1 is by lug 10 to double flexibility
5 top of pillar generates axially and transversely thrust, double flexible backbones 5 and is fixed on common bed 8, compared with double flexible backbones 5
Bottom generates a moment of flexure, and double flexible backbones 5 is forced to be deformed, and deformation needs are determined by calculation in regime of elastic deformation
It is interior, in this way after unit is cooling, before double flexible backbones 5 are restored to dilatancy again, realize working in reciprocating mode.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation be not intended to limit the utility model although the utility model has been disclosed with preferred embodiment as above, it is any ripe
Professional and technical personnel is known, is not being departed within the scope of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment for being modified or being modified to equivalent variations, but all without departing from technical solutions of the utility model
Hold, according to the technical essence of the utility model, within the spirit and principles of the present invention, to the above embodiments
What simple modifications, equivalent substitutions and improvements etc., within the protection scope for still falling within technical solutions of the utility model.
Claims (7)
1. a kind of two-way flexible support structure of low parameter back pressure turbine, it is characterised in that: a kind of low parameter back pressure steamer
The two-way flexible support structure of machine includes two groups of bearing units for being symmetricly set on steam turbine center line two sides, is supported described in every group single
Member includes the first nut (2), the first bolt (3), double flexible backbones (5), the second nut (6) and the second bolt (9), double flexible branch
The upper end of column (5) is detachably connected by the first nut (2) and the first bolt (3) and the lug (10) of steam turbine (1), double
The lower end of flexible backbone (5) is detachably connected by the second nut (6) and the second bolt (9) and the common bed (8) of steam turbine.
2. the two-way flexible support structure of a kind of low parameter back pressure turbine according to claim 1, it is characterised in that: double flexibility
Angle (B) between the side and steam turbine center line (4) of pillar (5) is 0 °~90 °.
3. the two-way flexible support structure of a kind of low parameter back pressure turbine according to claim 2, it is characterised in that: double flexibility
45 ° of angle (B) between the side and steam turbine center line (4) of pillar (5).
4. the two-way flexible support structure of a kind of low parameter back pressure turbine according to claim 1, it is characterised in that: described one
The kind two-way flexible support mechanism of low parameter back pressure turbine further includes cushion block (7), and cushion block (7) is arranged in double flexible backbones (5)
Between lower end surface and the upper surface of steam turbine common bed (8).
5. the two-way flexible support structure of a kind of low parameter back pressure turbine according to claim 1, it is characterised in that: double flexibility
The rectangular plate body (5-1) that pillar (5) is arranged side by side vertically by two forms.
6. the two-way flexible support structure of a kind of low parameter back pressure turbine according to claim 5, it is characterised in that: two long
The distance between square plate (5-1) (H) is 6.5mm~8mm.
7. the two-way flexible support structure of a kind of low parameter back pressure turbine according to claim 6, it is characterised in that: two long
The distance between square plate (5-1) (H) is 7.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821171719.1U CN208396760U (en) | 2018-07-18 | 2018-07-18 | A kind of two-way flexible support structure of low parameter back pressure turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821171719.1U CN208396760U (en) | 2018-07-18 | 2018-07-18 | A kind of two-way flexible support structure of low parameter back pressure turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208396760U true CN208396760U (en) | 2019-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821171719.1U Withdrawn - After Issue CN208396760U (en) | 2018-07-18 | 2018-07-18 | A kind of two-way flexible support structure of low parameter back pressure turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208396760U (en) |
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2018
- 2018-07-18 CN CN201821171719.1U patent/CN208396760U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190118 Effective date of abandoning: 20231208 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190118 Effective date of abandoning: 20231208 |