CN107327319A - The Quick steam blowing method and device of steam turbine admission line - Google Patents
The Quick steam blowing method and device of steam turbine admission line Download PDFInfo
- Publication number
- CN107327319A CN107327319A CN201710527049.6A CN201710527049A CN107327319A CN 107327319 A CN107327319 A CN 107327319A CN 201710527049 A CN201710527049 A CN 201710527049A CN 107327319 A CN107327319 A CN 107327319A
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- China
- Prior art keywords
- steam
- flange
- purging process
- purging
- steam blowing
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- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000007664 blowing Methods 0.000 title claims abstract description 49
- 238000010926 purge Methods 0.000 claims abstract description 48
- 230000008569 process Effects 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 238000005452 bending Methods 0.000 claims abstract description 6
- 230000009466 transformation Effects 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000010408 sweeping Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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
- F01D25/32—Collecting of condensation water; Drainage ; Removing solid particles
-
- 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
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipeline Systems (AREA)
Abstract
A kind of Quick steam blowing method of steam turbine admission line, including following specific steps：1) intercept and changed a social system close to the final stage steam inlet pipe road of turbine inlet as purging process pipe, the right-angle elbow pipe of 90 ° of bendings of purging process Guan Weicheng, two ends are fixed with flange, one end is abutted flange, it is connected with the flange of steam turbine admission line end, the other end is outlet(discharge) flange, is connected with steam turbine；2) position of purging process pipe is rotated up 90 °, is installed as the state of outlet(discharge) flange vertically upward；3) target plate is used as steam blowing detection plate, on the outlet(discharge) flange of purging process pipe；4) steam is passed through into admission line to be purged；5) pull down steam blowing detection plate after purged every time to detect purging result, reach requirement up to testing result；6) after all purging terminates, purging process pipe is changed into closure, is connected again with steam turbine.The present invention has the advantages that steam blowing is efficient and convenient, operating efficiency is high, with low cost.
Description
Technical field
The present invention relates to the manufacturing process of steam turbine, more particularly to a kind of Quick steam purging side of steam turbine admission line
Method and device, belong to chain drive manufacturing technology field.
Background technology
Steam turbine must have HTHP steam during normally running is inputted, and provides the pot of high temperature and high pressure steam
The steam pipework that furnace system must be between the two connected by itself and steam turbine carries out steam conveying.But steam pipework is in system
In work, welding and installation process, not only have foul and enter pipeline, and inner-walls of duct can also be attached with metallic particles, metal
The impurity such as oxide, welding slag.Although the quick-closing valve of steam turbine is equipped with steam filter screen, after steam turbine puts into operation, size is less than
The solid impurity of filter screen hole still can enter high speed flow passage component by filter screen, hit, feather plucking blade even damages steam turbine leaf
The part such as piece and packing.To eliminate this hidden danger, before the first time after steam turbine installation starts, to ensure in jet chimney
Solid impurity remove clean by thorough, the admission passage of steam turbine must carry out steam blowing.
When steam turbine admission line carries out steam blowing, it usually needs make the special technique of one section of steam blowing in addition
Pipe, one section is removed on former steam inlet pipe road, special purging process pipe is then connected.Due to being related to the dismounting of many pipelines, because
This this traditional method is inconvenient；In addition, in order to check and judge whether purging effect is good, in steam blowing technique
The exit of pipe needs to install steam blowing detection part.Traditional steam blowing detection part by flanged (FLGD) fixed support,
The part such as target plate and bracket is constituted, and structure is complex and cost of manufacture is higher, simultaneously because its specific structure and installation side
Formula, in actual use, the dismounting of steam blowing detection part are comparatively laborious.
The content of the invention
It is an object of the present invention to overcome the shortcomings of above-mentioned existing process technology, there is provided a kind of steam turbine admission line
Quick steam blowing method and device, are improved with process duct and purging detection part to existing steam blowing, reach system
Make simple, with low cost and convenient disassembly in actual use effect.
The technical scheme that its technical problem of present invention solution is taken is as follows：
A kind of Quick steam blowing method of steam turbine admission line, it is characterised in that：
Described Quick steam blowing method includes following specific steps：
1) intercept and changed a social system close to the final stage steam inlet pipe road of turbine inlet as purging process pipe, the purging process pipe
For in the right-angle elbow pipe of 90 ° of bendings, two ends are fixed with flange, and one end is abutted flange, with steam turbine admission line end
The flange connection at end, the other end is outlet(discharge) flange, is connected with the steam turbine；
2) position of the purging process pipe is rotated up 90 °, is installed as the state of the outlet(discharge) flange vertically upward；
3) target plate is used as steam blowing detection plate, on the outlet(discharge) flange of the purging process pipe；
4) steam is passed through into the admission line to be purged；
5) pull down the steam blowing detection plate after purged every time to detect purging result, reach up to testing result
To requiring；
6) after all purging terminates, the purging process pipe is changed into closure, is connected again with the steam turbine.
The present invention another technical scheme be：
A kind of device for being used to realize the Quick steam purging, it includes purging process pipe and steam blowing detection plate,
The right-angle elbow pipe of 90 ° of bendings of purging process Guan Weicheng, one end passes through bolt and the method for the steam turbine admission line end
Blue detachably connected, the other end is detachably connected by bolt and the steam turbine.
Further, described purging process pipe two ends are fixed with flange.
Further, described steam blowing detection plate is formed by the target plate transformation of the way of steam blowing detection part, and material is
Aluminium sheet, thickness is 2~3mm, and width is 30mm.
Compared with traditional steam blowing method, technique effect of the invention is as follows：
1) the final stage steam inlet pipe road that will be close to turbine inlet is reequiped as steam blowing process duct, is avoided the need for
Special steam blowing process duct is still further made, relative production expense is saved, reduces cost, blown while greatly reducing
The dismounting workload of process duct is swept, blow job has been reached conveniently effect.
2) original steam is purged into the target plate in detection part and replaces original steam blowing detection part, it is simple with making
Easily, the advantages of with low cost and convenient disassembly.
3) the method for the invention has the advantages that steam blowing is efficient and convenient, operating efficiency is high, with low cost.
Brief description of the drawings
Fig. 1 is method program figure of the invention.
Fig. 2 is the state diagram before steam turbine admission line is purged.
Fig. 3 is the state diagram after of the invention purged.
In figure, 1-admission line, 2-abutted flange, 3-purging process pipe, 4-steam turbine, the detection of 5-steam blowing
Plate.
Embodiment
The present invention will be described in detail with specific embodiment below in conjunction with the accompanying drawings, but the guarantor of the present invention can not be limited with this
Protect scope.
Fig. 1 show Quick steam blowing method of the present invention.When before progress steam blowing, admission line 1 is pressed
It is attached according to former connected mode with the steam turbine 4, referring to Fig. 2.
The Quick steam blowing method of the steam turbine admission line includes following specific steps：
1) transformation of the way of final stage steam inlet pipe road 1 intercepted close to the porch of steam turbine 4 is purging process pipe 3.The purging
Process duct 3 is the right-angle elbow pipes in 90 ° of bendings, and two ends are fixed with flange, and one end is abutted flange 2, by bolt with it is described
The flange of the end of admission line 1 of steam turbine 4 is detachably connected, and the other end is outlet(discharge) flange, passes through bolt and the steamer
Machine 4 is detachably connected.
Using the part transformation of the way in steam inlet pipe road 1 as purging process pipe 3, avoid the need for still further making special steam and blow
Process duct is swept, relative production expense has been reduced；The dismounting workload of purging process pipe is greatly reduced simultaneously, has reached that convenience is fast
Prompt degree.
2) connection abutted flange 2 is reinstalled, the position of the purging process pipe 3 90 ° are rotated up, by purging process
The direction of the outlet(discharge) flange of pipe 3 is changed to vertically upward.
3) original steam is purged into the target plate in detection part and is changed to steam blowing detection plate 5, installed in the purging work
On the outlet(discharge) flange of skill pipe 3, referring to Fig. 3.
The material of the steam blowing detection plate 5 is one block of aluminium sheet, is processed into thickness about 2~3mm, wide about 30mm, length
Determined according to the size of the outlet(discharge) flange of purging process pipe 3, while in the longitudinal direction according to the outlet(discharge) flange bolt of purging process pipe 3
Hole center circle diameter and diameter of bolt hole process two connecting holes, the side being connected with the outlet(discharge) flange of purging process pipe 3
Formula is fixed.
4) steam is passed through into the admission line 1 and carries out purging work；
5) after purged every time, 5 pairs of purging results of the steam blowing detection plate is pulled down and are detected, up to testing result
Reach requirement.
The work of dismounting steam blowing detection plate 5 becomes very convenient, only need to be by outlet(discharge) flange and steam blowing detection plate 5
Two bolts of connection unclamp, so that it may remove steam blowing detection plate 5 and checked.
6) after all purging terminates, steam blowing detection plate 5 is unloaded in process duct 3 from purging, and by the docking
Flange 2 dismantles re-attached, make purging process pipe 3 change closure, reply as former state and with described the corresponding interface of steam turbine 4
Reconnect.
Present invention connection quickly, conveniently, and can ensure that all pipe paths have all carried out steam blowing.
The preferred embodiment of the present invention is above are only, it is all according in the scope of the invention not for limiting the present invention
Hold made equivalent changes and modifications, belong to the scope of protection of present invention.
Claims (4)
1. a kind of Quick steam blowing method of steam turbine admission line, it is characterised in that：
Described Quick steam blowing method includes following specific steps：
1) intercept and changed a social system close to the final stage steam inlet pipe road of turbine inlet as purging process pipe, purging process Guan Weicheng
The right-angle elbow pipe of 90 ° of bendings, two ends are fixed with flange, and one end is abutted flange, with the steam turbine admission line end
Flange is connected, and the other end is outlet(discharge) flange, is connected with the steam turbine；
2) position of the purging process pipe is rotated up 90 °, is installed as the state of the outlet(discharge) flange vertically upward；
3) target plate is used as steam blowing detection plate, on the outlet(discharge) flange of the purging process pipe；
4) steam is passed through into the admission line to be purged；
5) every time it is purged after pull down the steam blowing detection plate to purging result detect, until testing result reach want
Ask；
6) after all purging terminates, the purging process pipe is changed into closure, is connected again with the steam turbine.
2. a kind of steam blowing equipment for being used to realize claim 1 methods described, it is characterised in that：The steam blowing equipment
Including purging process pipe and steam blowing detection plate, the right-angle elbow pipe of 90 ° of bendings of purging process Guan Weicheng, one end passes through spiral shell
Bolt and the flange of the steam turbine admission line end are detachably connected, and the other end is detachable by bolt and the steam turbine
Ground is connected.
3. steam blowing equipment according to claim 2, it is characterised in that：Described purging process pipe two ends are fixed with
Flange.
4. steam blowing equipment according to claim 2, it is characterised in that：Described steam blowing detection plate is blown by steam
The target plate transformation of the way for sweeping detection part is formed, and material is aluminium sheet, and thickness is 2~3mm, and width is 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710527049.6A CN107327319B (en) | 2017-06-30 | 2017-06-30 | The Quick steam blowing method and device of steam turbine admission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710527049.6A CN107327319B (en) | 2017-06-30 | 2017-06-30 | The Quick steam blowing method and device of steam turbine admission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107327319A true CN107327319A (en) | 2017-11-07 |
| CN107327319B CN107327319B (en) | 2019-02-12 |
Family
ID=60198100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710527049.6A Active CN107327319B (en) | 2017-06-30 | 2017-06-30 | The Quick steam blowing method and device of steam turbine admission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107327319B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227674A (en) * | 2018-03-06 | 2019-09-13 | 兰州兰石重型装备股份有限公司 | Flange sealing surface leaks blow device and its application method |
| CN111744901A (en) * | 2020-07-17 | 2020-10-09 | 三门核电有限公司 | Method for jointly purging auxiliary steam of nuclear power station and steam pipeline of steam turbine shaft seal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202661091U (en) * | 2012-05-15 | 2013-01-09 | 中国二十冶集团有限公司 | Built-in purging target plate for gas pipeline |
| CN203376145U (en) * | 2013-04-23 | 2014-01-01 | 中国联合工程公司 | Target plate installation structure in steam pipeline purging system |
| CN105157047A (en) * | 2015-09-07 | 2015-12-16 | 广东电网有限责任公司电力科学研究院 | Method and system for debugging boiler of 1045MW ultra-supercritical coal-fired unit through pipe purging |
| CN205591969U (en) * | 2016-04-21 | 2016-09-21 | 中国化学工程第三建设有限公司 | Integration of steam pipe tape steam turbine sweeps device fast |
-
2017
- 2017-06-30 CN CN201710527049.6A patent/CN107327319B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202661091U (en) * | 2012-05-15 | 2013-01-09 | 中国二十冶集团有限公司 | Built-in purging target plate for gas pipeline |
| CN203376145U (en) * | 2013-04-23 | 2014-01-01 | 中国联合工程公司 | Target plate installation structure in steam pipeline purging system |
| CN105157047A (en) * | 2015-09-07 | 2015-12-16 | 广东电网有限责任公司电力科学研究院 | Method and system for debugging boiler of 1045MW ultra-supercritical coal-fired unit through pipe purging |
| CN205591969U (en) * | 2016-04-21 | 2016-09-21 | 中国化学工程第三建设有限公司 | Integration of steam pipe tape steam turbine sweeps device fast |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227674A (en) * | 2018-03-06 | 2019-09-13 | 兰州兰石重型装备股份有限公司 | Flange sealing surface leaks blow device and its application method |
| CN111744901A (en) * | 2020-07-17 | 2020-10-09 | 三门核电有限公司 | Method for jointly purging auxiliary steam of nuclear power station and steam pipeline of steam turbine shaft seal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107327319B (en) | 2019-02-12 |
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