CN106321171A - Novel flexible support of high-back-pressure steam turbine - Google Patents
Novel flexible support of high-back-pressure steam turbine Download PDFInfo
- Publication number
- CN106321171A CN106321171A CN201610988310.8A CN201610988310A CN106321171A CN 106321171 A CN106321171 A CN 106321171A CN 201610988310 A CN201610988310 A CN 201610988310A CN 106321171 A CN106321171 A CN 106321171A
- Authority
- CN
- China
- Prior art keywords
- front bearing
- bearing box
- flexible support
- steam turbine
- novel flexible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/04—Antivibration arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses a novel flexible support of a high-back-pressure steam turbine and relates to the technical field of energy power. The novel flexible support comprises an outer air cylinder and a front bearing box, a claw on the outer air cylinder is connected with the front bearing through a transverse key, a front bearing box supporting plate is arranged on the front bearing box, the top center of the front bearing box supporting plate is connected with the bottom end of the transverse key, one end of each of double flexible supporting columns is connected with the bottom end of the front bearing box supporting plate, reinforcing ribs are arranged on the double flexible supporting columns, the other ends of the double flexible supporting columns are fixedly connected with a common base through cushion blocks, and the cushion blocks are fixedly connected with the common base through bolts C and nuts B. The novel flexible support of the high-back-pressure steam turbine has the advantages that the novel flexible support substitutes for a sliding pin system, requires no adding of lubricant oil and is tight in supporting surface contact without a gap to avoid possible lateral and vertical displacement so as to eliminate jamming; the novel flexible support can substitute for an original flexible supporting structure to eliminate excessive vibration caused by eccentricity of a moving portion and a static portion due to slightly large borne external force, so that safety, reliability and maintainability are improved.
Description
Technical field:
The present invention relates to energy source and power technical field, be specifically related to a kind of novel flexible support of high back pressure steam turbine.
Background technology:
High back pressure steam turbine refer to initial steam pressure between 8MPa ~ 12MPa, exhaust steam pressure is at the back pressure turbine of 3MPa ~ 7MPa.
The steam (standard configuration parameter of boiler) of high parameter is become middle parameter steam by high back pressure steam turbine, uses meeting process equipment
On the basis of vapour demand, drive the equipment such as various pump, blower fan, compressor and electromotor, substitute temperature-decreased pressure reducer simultaneously, improve
Energy utilization rate.
Steam turbine supporting structure mostly is sliding key system, but sliding key system needs periodically to inject lubricating oil, add maintenance and
The work such as maintenance, and individual other steam turbine supporting structure often can cause stuck phenomenon, runs for Turbine Safety and brings
Hidden danger.It addition, also having part steam turbine supporting structure is flexible support, but original flexible support is single flexible backbone, steam turbine
Bear external force ability more weak, easily cause dynamic and static part concentric, and then the problem such as cause rotor oscillation excessive.
Summary of the invention:
It is an object of the invention to provide a kind of novel flexible support of high back pressure steam turbine, decrease high back pressure sliding pin system of steam turbine
Maintenance and maintenance work, thoroughly eliminate stuck phenomenon, and original flexible support bear the bigger dynamic and static part caused of external force
The problems such as the vibration that do not causes with one heart is excessive.
The technical solution used in the present invention is: a kind of novel flexible support of high back pressure steam turbine, including outside cylinder and front axle
Holding case, outside cylinder one end is provided with ram's horn, and ram's horn is connected with front bearing box by horizontal key, ram's horn and front bearing box pass through bolt A and
Nut A fixes, and front bearing box is provided with front bearing box gripper shoe, and front bearing box gripper shoe is fixed by bolt B with front bearing box
Connecting, middle position, front bearing box gripper shoe top is connected with the bottom of horizontal key, the double flexible backbone in front bearing box gripper shoe bottom
One end connects, and double flexible backbone are provided with ribs, and double flexible backbone other ends are connected by cushion block and common bed are fixing, pad
Block is connected by bolt C and nut B is fixing with common bed.
The invention has the beneficial effects as follows: the novel flexible support of this high back pressure steam turbine, instead of sliding key system, it is not necessary to add
Lubricating oil, its bearing-surface contact is tight, very close to each other, therefore can not produce lateral and vertical deviation, thus eliminate card
Dead phenomenon, also replaces original flexible support structure simultaneously, eliminates the most concentric owing to bearing the bigger dynamic and static part caused of external force
And the problem such as the vibration that causes is excessive, improve security reliability and maintainability.
Accompanying drawing illustrates:
Fig. 1 is present configuration schematic diagram.
Detailed description of the invention:
With reference to each figure, a kind of novel flexible support of high back pressure steam turbine, including outside cylinder 1 and front bearing box 2, outside cylinder 1 one end
Being provided with ram's horn 12, ram's horn 12 is connected with front bearing box 2 by horizontal key 3, and ram's horn 12 and front bearing box 2 are by bolt A4 and nut A5
Fixing, front bearing box 2 is provided with front bearing box gripper shoe 13, and front bearing box gripper shoe 13 and front bearing box 2 are solid by bolt B 6
Fixed connection, middle position, front bearing box gripper shoe 13 top is connected with the bottom of horizontal key 3, and front bearing box gripper shoe 13 bottom is double scratches
Property pillar 14 one end connect, double flexible backbone 14 are provided with ribs 7, double flexible backbone 14 other ends by cushion block 9 with public
Base 10 is fixing to be connected, and cushion block 9 is connected by bolt C11 and nut B8 is fixing with common bed 10.
The novel flexible support of this high back pressure steam turbine, the outside cylinder 1 of band ram's horn 12 structure is bearing in fore bearing by horizontal key 3
On case 2, horizontal key 3 bottom is connected with front bearing box support plate 13, and fore bearing support plate 13 bottom connects double flexible backbone 14, double scratches
Property pillar 14 is provided with ribs 7, is fixed on common bed 10 bottom double flexible backbone 14.
The novel flexibility of this high back pressure steam turbine props up operation principle: holding high back pressure steam turbine rear portion is dead point, works as expanded by heating
After, outside cylinder 1 produces axially forwardly thrust by ram's horn 12 and horizontal key 3 to front bearing box 2 and double flexible backbone 14 tops, double scratches
Property pillar 14 bottom be fixed on common bed 10, compared with producing a moment of flexure bottom double flexible backbone 14, force double flexible
Pillar 14 is deformed, and this deformation needs to determine in regime of elastic deformation by calculating, so after unit cools down, and double flexibility
Before pillar 14 returns to dilatancy again, it is achieved working in reciprocating mode, and then achieve replacement sliding key system, decrease maintenance and safeguard
Deng work, completely eliminating stuck phenomenon, also replace original flexible support structure simultaneously, owing to bearing, external force is bigger to be led in elimination
The problems such as vibration that the dynamic and static part caused does not causes with one heart is excessive, improve security reliability and the dimension of high back pressure steam turbine
Repairing property.
Claims (1)
1. the novel flexible support of high back pressure steam turbine, including outside cylinder (1) and front bearing box (2), it is characterised in that: outer vapour
Cylinder (1) one end is provided with ram's horn (12), and ram's horn (12) is connected with front bearing box (2) by horizontal key (3), ram's horn (12) and front bearing box
(2) by bolt A(4) and nut A(5) fixing, front bearing box (2) is provided with front bearing box gripper shoe (13), and front bearing box props up
Fagging (13) is connected by bolt B (6) is fixing with front bearing box (2), and front bearing box gripper shoe (13) middle position, top is with horizontal
The bottom of key (3) connects, and double flexible backbone (14) one end, front bearing box gripper shoe (13) bottom connects, in double flexible backbone (14)
Being provided with ribs (7), double flexible backbone (14) other end is connected by cushion block (9) and common bed (10) are fixing, cushion block (9) and
Common bed (10) passes through bolt C(11) and nut B(8) fixing connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610988310.8A CN106321171A (en) | 2016-11-10 | 2016-11-10 | Novel flexible support of high-back-pressure steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610988310.8A CN106321171A (en) | 2016-11-10 | 2016-11-10 | Novel flexible support of high-back-pressure steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106321171A true CN106321171A (en) | 2017-01-11 |
Family
ID=57816413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610988310.8A Pending CN106321171A (en) | 2016-11-10 | 2016-11-10 | Novel flexible support of high-back-pressure steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106321171A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU179102U1 (en) * | 2017-11-30 | 2018-04-26 | Акционерное общество "Уральский турбинный завод" | Two-way axial force transmission device |
| CN108775264A (en) * | 2018-07-18 | 2018-11-09 | 中国船舶重工集团公司第七0三研究所 | A kind of two-way flexible support structure of low parameter back pressure turbine |
| CN111396153A (en) * | 2020-04-22 | 2020-07-10 | 哈尔滨广瀚新能动力有限公司 | Steam turbine fixing device |
| CN111425269A (en) * | 2020-04-25 | 2020-07-17 | 中国船舶重工集团公司第七0三研究所 | Double-flexible supporting structure of low-parameter saturated steam turbine |
| CN114542206A (en) * | 2022-03-09 | 2022-05-27 | 中国船舶重工集团公司第七0三研究所 | Bearing box of compact structure type unit |
| CN115263452A (en) * | 2022-08-17 | 2022-11-01 | 东方电气集团东方汽轮机有限公司 | Compact turbine cylinder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4637214A (en) * | 1985-12-17 | 1987-01-20 | Westinghouse Electric Corp. | Single-ended steam chest with improved support assembly |
| JP4347269B2 (en) * | 2005-06-28 | 2009-10-21 | 三菱重工業株式会社 | Turbine |
| CN203531981U (en) * | 2013-09-05 | 2014-04-09 | 大连卓远重工有限公司 | Supercritical steam turbine low pressure cylinder |
| CN204041137U (en) * | 2014-06-18 | 2014-12-24 | 中国长江动力集团有限公司 | Steam turbine flexible support structure |
| CN204755003U (en) * | 2015-07-08 | 2015-11-11 | 东方电气集团东方汽轮机有限公司 | Support framework of main vapour governing valve of steam turbine high pressure |
| CN105545384A (en) * | 2016-02-05 | 2016-05-04 | 中国船舶重工集团公司第七�三研究所 | Flexible support of high-back-pressure turbine |
| CN206158806U (en) * | 2016-11-10 | 2017-05-10 | 中国船舶重工集团公司第七0三研究所 | Novel flexible support of high back pressure steam turbine |
-
2016
- 2016-11-10 CN CN201610988310.8A patent/CN106321171A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4637214A (en) * | 1985-12-17 | 1987-01-20 | Westinghouse Electric Corp. | Single-ended steam chest with improved support assembly |
| JP4347269B2 (en) * | 2005-06-28 | 2009-10-21 | 三菱重工業株式会社 | Turbine |
| CN203531981U (en) * | 2013-09-05 | 2014-04-09 | 大连卓远重工有限公司 | Supercritical steam turbine low pressure cylinder |
| CN204041137U (en) * | 2014-06-18 | 2014-12-24 | 中国长江动力集团有限公司 | Steam turbine flexible support structure |
| CN204755003U (en) * | 2015-07-08 | 2015-11-11 | 东方电气集团东方汽轮机有限公司 | Support framework of main vapour governing valve of steam turbine high pressure |
| CN105545384A (en) * | 2016-02-05 | 2016-05-04 | 中国船舶重工集团公司第七�三研究所 | Flexible support of high-back-pressure turbine |
| CN206158806U (en) * | 2016-11-10 | 2017-05-10 | 中国船舶重工集团公司第七0三研究所 | Novel flexible support of high back pressure steam turbine |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU179102U1 (en) * | 2017-11-30 | 2018-04-26 | Акционерное общество "Уральский турбинный завод" | Two-way axial force transmission device |
| CN108775264A (en) * | 2018-07-18 | 2018-11-09 | 中国船舶重工集团公司第七0三研究所 | A kind of two-way flexible support structure of low parameter back pressure turbine |
| CN108775264B (en) * | 2018-07-18 | 2023-12-08 | 中国船舶重工集团公司第七0三研究所 | Bidirectional flexible supporting structure of low-parameter back pressure steam turbine |
| CN111396153A (en) * | 2020-04-22 | 2020-07-10 | 哈尔滨广瀚新能动力有限公司 | Steam turbine fixing device |
| CN111425269A (en) * | 2020-04-25 | 2020-07-17 | 中国船舶重工集团公司第七0三研究所 | Double-flexible supporting structure of low-parameter saturated steam turbine |
| CN114542206A (en) * | 2022-03-09 | 2022-05-27 | 中国船舶重工集团公司第七0三研究所 | Bearing box of compact structure type unit |
| CN114542206B (en) * | 2022-03-09 | 2024-02-20 | 中国船舶重工集团公司第七0三研究所 | Bearing box of compact structure unit |
| CN115263452A (en) * | 2022-08-17 | 2022-11-01 | 东方电气集团东方汽轮机有限公司 | Compact turbine cylinder |
| CN115263452B (en) * | 2022-08-17 | 2024-06-21 | 东方电气集团东方汽轮机有限公司 | Compact turbine cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106321171A (en) | Novel flexible support of high-back-pressure steam turbine | |
| CN105545384A (en) | Flexible support of high-back-pressure turbine | |
| CN106670659B (en) | A kind of cutting machine | |
| CN105215098B (en) | A kind of bender and its application method | |
| CN206158806U (en) | Novel flexible support of high back pressure steam turbine | |
| CN106112617A (en) | A kind of work holder | |
| CN108775264B (en) | Bidirectional flexible supporting structure of low-parameter back pressure steam turbine | |
| CN205330745U (en) | High back pressure steam turbine flexible support | |
| CN203527427U (en) | Pit rack special for overhaul of large shaft parts | |
| CN102825003B (en) | Novel banana vibrating screen | |
| CN205631474U (en) | But two -way positioning leads press air track assembly of positive air cushion apical cap and single apical cap | |
| CN108927712A (en) | A kind of novel deburring equipment of packing case plank processing | |
| CN109185389A (en) | A kind of non-natural gas used for automobile generating set | |
| CN103786118A (en) | Diesel generating set assembly tool | |
| CN205330739U (en) | End vapor seal can swiftly be dismantled to high back pressure steam turbine | |
| CN103878566A (en) | Slip ring body press-fitting equipment | |
| CN207087765U (en) | The main stuffing-box of high-pressure plunger pump and secondary stuffing-box extracting tool | |
| CN203680151U (en) | Assembly tooling for diesel generating set | |
| CN208396760U (en) | A kind of two-way flexible support structure of low parameter back pressure turbine | |
| CN105904265B (en) | A kind of washer clamping device | |
| CN109131379B (en) | Heavy rail car unit chassis | |
| CN204609801U (en) | Novel compositions breakage-prevention suspension rope device | |
| CN204295481U (en) | For the honing alignment tool of oblique tray type plunger pump cylinder plunger hole | |
| KR20140064200A (en) | Lifting cylinder for moving bolster of press | |
| CN109333219A (en) | It is a kind of to remove corner sander automatically |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |