CN105108449A - Processing method for steam seal ring of steam turbine - Google Patents
Processing method for steam seal ring of steam turbine Download PDFInfo
- Publication number
- CN105108449A CN105108449A CN201510443367.5A CN201510443367A CN105108449A CN 105108449 A CN105108449 A CN 105108449A CN 201510443367 A CN201510443367 A CN 201510443367A CN 105108449 A CN105108449 A CN 105108449A
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- CN
- China
- Prior art keywords
- seal ring
- steam seal
- processing method
- steam
- turning
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses a processing method for a steam seal ring of a steam turbine, and relates to the processing method for the steam seal ring of the steam turbine. The invention aims to solve the problem that a current steam seal ring processing method is high in cost. The processing method comprises the following steps: turning steam seal ring blank in a whole-ring mode, and cutting the tuned steam seal ring by use of a linear cutting machine tool. The processing method can be used for processing the steam seal ring with one ring of the blank, and reducing workload of repairing a radiant surface by a bench worker, thereby improving the production efficiency and saving the blank. The processing method is applied to the field of steam turbines.
Description
Technical field
The present invention relates to a kind of turbine steam seal ring processing method.
Background technology
Steam seal ring is often enclosed and is generally formed by 6 sections, and steam seal ring processing whole circle turning steam seal ring blank before this, then cuts open with plain milling metal saw, owing to there is the saw kerf width of milling cutter, each saw kerf width is 2 ~ 3mm, if cut out six sections, will shortage 12 ~ 18mm, because breach is larger, cannot make up when turning, therefore often enclose steam seal ring blank and can not cut six sections by arc length, cut out at most 5 sections, in the repair of every section of radiating surface made allowance, registration steam seal ring each radiating surface during assembling.Therefore, each circle steam seal ring blank material can't process a circle steam seal ring finished product, which increases material cost.
Summary of the invention
The object of the invention is to solve the high problem of existing processing vapor seal method cost, a kind of turbine steam seal ring processing method is provided.
A kind of turbine steam seal ring processing method of the present invention, comprises following concrete steps:
One, by whole for steam seal ring blank material circle turning, steam seal ring after turning is obtained; The wherein diameter of steam seal ring 0.38 ~ 0.41mm larger than the steam seal ring finished product diameter that will obtain after turning;
Two, with wire cutting machine tool, the steam seal ring after turning is slit into six sections, obtains steam seal ring finished product, namely complete turbine steam seal ring processing method.
The present invention adopts wire cutting machine tool to cut steam seal ring, otch due to wire cutting machine tool is 0.18 ~ 0.2mm, one circle steam seal ring has six otch, only wide is altogether about 1.2mm, therefore steam seal ring girth can be needed 1.2mm is increased when steam seal ring carries out turning, namely diameter increases by 1.2 ÷ 3.1415926 ≈ 0.4mm, namely drawing dimensional requirement can be met like this after cutting, a circle blank processing one can enclose steam seal ring again, and decrease the workload of pincers worker repair radiating surface, both improve production efficiency, again save blank material.
Detailed description of the invention
Detailed description of the invention one: a kind of turbine steam seal ring processing method of present embodiment, comprises following concrete steps:
One, by whole for steam seal ring blank material circle turning, steam seal ring after turning is obtained; The wherein diameter of steam seal ring 0.38 ~ 0.41mm larger than the steam seal ring finished product diameter that will obtain after turning;
Two, with wire cutting machine tool, the steam seal ring after turning is slit into six sections, obtains steam seal ring finished product, namely complete turbine steam seal ring processing method.
Present embodiment adopts wire cutting machine tool cutting steam seal ring, otch due to wire cutting machine tool is 0.18 ~ 0.2mm, one circle steam seal ring has six otch, only wide is altogether about 1.2mm, therefore steam seal ring girth can be needed 1.2mm is increased when steam seal ring carries out turning, namely diameter increases by 1.2 ÷ 3.1415926 ≈ 0.4mm, namely drawing dimensional requirement can be met like this after cutting, a circle blank processing one can enclose steam seal ring again, and decrease the workload of pincers worker repair radiating surface, both improve production efficiency, again save blank material.
Detailed description of the invention two: present embodiment and detailed description of the invention one unlike: the steam seal ring blank material described in step one is whole circle blank.Other step is identical with detailed description of the invention one with parameter.
Detailed description of the invention three: present embodiment and detailed description of the invention one or two are unlike the diameter of steam seal ring 0.40mm larger than the steam seal ring finished product diameter that will obtain after the turning described in step 2.Other step is identical with detailed description of the invention one or two with parameter.
Beneficial effect of the present invention is verified by following examples:
Embodiment one: a kind of turbine steam seal ring processing method of the present embodiment, comprises following concrete steps:
One, by the whole circle turning of steam seal ring blank material of whole circle, steam seal ring after turning is obtained; The wherein diameter of steam seal ring 0.40mm larger than the steam seal ring finished product diameter that will obtain after turning;
Two, with wire cutting machine tool, the steam seal ring after turning is slit into six sections, obtains steam seal ring finished product, namely complete turbine steam seal ring processing method.
The present embodiment adopts wire cutting machine tool cutting steam seal ring, otch due to wire cutting machine tool is 0.2mm, one circle steam seal ring has six otch, only wide is altogether 1.2mm, therefore steam seal ring girth can be needed 1.2mm is increased when steam seal ring carries out turning, namely diameter increases by 1.2 ÷ 3.1415926 ≈ 0.4mm, namely drawing dimensional requirement can be met like this after cutting, a circle blank processing one can enclose steam seal ring again, and decrease the workload of pincers worker repair radiating surface, both improve production efficiency, again save blank material.
Claims (3)
1. a turbine steam seal ring processing method, is characterized in that the method comprises following concrete steps:
One, by whole for steam seal ring blank material circle turning, steam seal ring after turning is obtained; The wherein diameter of steam seal ring 0.38 ~ 0.41mm larger than the steam seal ring finished product diameter that will obtain after turning;
Two, with wire cutting machine tool, the steam seal ring after turning is slit into six sections, obtains steam seal ring finished product, namely complete turbine steam seal ring processing method.
2. a kind of turbine steam seal ring processing method according to right 1, is characterized in that the steam seal ring blank material described in step one is whole circle blank.
3. a kind of turbine steam seal ring processing method according to right 1, the diameter of steam seal ring 0.40mm larger than the steam seal ring finished product diameter that will obtain after it is characterized in that the turning described in step 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510443367.5A CN105108449B (en) | 2015-07-24 | 2015-07-24 | A kind of turbine steam seal ring processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510443367.5A CN105108449B (en) | 2015-07-24 | 2015-07-24 | A kind of turbine steam seal ring processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105108449A true CN105108449A (en) | 2015-12-02 |
| CN105108449B CN105108449B (en) | 2017-06-23 |
Family
ID=54656673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510443367.5A Active CN105108449B (en) | 2015-07-24 | 2015-07-24 | A kind of turbine steam seal ring processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105108449B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405432A (en) * | 2002-10-30 | 2003-03-26 | 东方汽轮机厂 | Ferrite inserted gland sealing ring processing method |
| US20040239040A1 (en) * | 2003-05-29 | 2004-12-02 | Burdgick Steven Sebastian | Nozzle interstage seal for steam turbines |
| CN102501008A (en) * | 2011-10-26 | 2012-06-20 | 哈尔滨汽轮机厂有限责任公司 | Method for processing sealing ring |
| CN103949858A (en) * | 2014-04-28 | 2014-07-30 | 哈尔滨汽轮机厂有限责任公司 | Method for processing steam seal arc segment of power station steam turbine |
-
2015
- 2015-07-24 CN CN201510443367.5A patent/CN105108449B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405432A (en) * | 2002-10-30 | 2003-03-26 | 东方汽轮机厂 | Ferrite inserted gland sealing ring processing method |
| US20040239040A1 (en) * | 2003-05-29 | 2004-12-02 | Burdgick Steven Sebastian | Nozzle interstage seal for steam turbines |
| CN102501008A (en) * | 2011-10-26 | 2012-06-20 | 哈尔滨汽轮机厂有限责任公司 | Method for processing sealing ring |
| CN103949858A (en) * | 2014-04-28 | 2014-07-30 | 哈尔滨汽轮机厂有限责任公司 | Method for processing steam seal arc segment of power station steam turbine |
Non-Patent Citations (1)
| Title |
|---|
| 侯可军: "《轮机金工工艺》", 30 April 2015 * |
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| Publication number | Publication date |
|---|---|
| CN105108449B (en) | 2017-06-23 |
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Effective date of registration: 20221230 Address after: 150000 building 3, high tech production base, Nangang District, Harbin City, Heilongjiang Province Patentee after: HARBIN TURBINE Co.,Ltd. Patentee after: HADIAN POWER EQUIPMENT NATIONAL ENGINEERING RESEARCH CENTER CO.,LTD. Address before: 150046 No. three power road 345, Xiangfang District, Heilongjiang, Harbin Patentee before: HARBIN TURBINE Co.,Ltd. |
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| TR01 | Transfer of patent right |