CN107327319B - 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
- CN107327319B CN107327319B CN201710527049.6A CN201710527049A CN107327319B CN 107327319 B CN107327319 B CN 107327319B CN 201710527049 A CN201710527049 A CN 201710527049A CN 107327319 B CN107327319 B CN 107327319B
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- Prior art keywords
- steam
- flange
- purging process
- purging
- steam blowing
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- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000007664 blowing Methods 0.000 title claims abstract description 51
- 238000010926 purge Methods 0.000 claims abstract description 48
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 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 description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process 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
- 210000004262 dental pulp cavity Anatomy 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
- 238000012857 repacking 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) intercepting close to the restructuring of the final stage steam inlet pipe road of turbine inlet is purging process pipe, 90 ° of curved right-angle elbow pipes of purging process Guan Weicheng, both ends are fixed with flange, one end is abutted flange, with the flanged joint of steam turbine admission line end, the other end is outlet(discharge) flange, is connect with steam turbine；2) position of purging process pipe is rotated by 90 ° upwards, is installed as the state of outlet(discharge) flange vertically upward；3) target plate is used as steam blowing detection plate, be mounted on the outlet(discharge) flange of purging process pipe；4) steam is passed through into admission line to be purged；5) it removes steam blowing detection plate after purged every time to detect purging result, until testing result reaches requirement；6) all after purging, purging process pipe is changed into connection direction, is connect again with steam turbine.The present invention has the advantages that steam blowing is efficient and convenient, work efficiency is high, low in cost.
Description
Technical field
The present invention relates to the manufacturing process of steam turbine more particularly to a kind of Quick steam purging sides of steam turbine admission line
Method and device belong to chain drive manufacturing technology field.
Background technique
Steam turbine must have the steam of high temperature and pressure to input during operating normally, and provide the pot of high temperature and high pressure steam
Furnace system must carry out steam conveying with the steam pipework that steam turbine is connect between the two by it.But steam pipework is being made
Make, in welding and installation process, not only has foul and enter pipeline, but also inner wall of the pipe 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 strainer hole can still enter high speed flow passage component by strainer, hit, feather plucking blade even damages steam turbine leaf
The parts such as piece and packing.To eliminate this hidden danger, before the first time starting after steam turbine installation, to guarantee in jet chimney
Solid impurity thoroughly removed completely, the admission passage of steam turbine must carry out steam blowing.
When steam turbine admission line carries out steam blowing, it usually needs in addition make one section of dedicated technique of steam blowing
Pipe removes one section on former steam inlet pipe road, then connects dedicated purging process pipe.Due to being related to the dismounting in more root canal roads, 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 bracket,
The part such as target plate and bracket forms, 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.
Summary of the invention
It is an object of the present invention to overcome the shortcomings of above-mentioned prior art technology, a kind of steam turbine admission line is provided
Quick steam blowing method and device improve existing steam blowing process duct and purging detection part, reach system
Make effect simple, low in cost and convenient for disassembly and assembly in actual use.
It is as follows that the present invention solves the technical solution that its technical problem is taken:
A kind of Quick steam blowing method of steam turbine admission line, it is characterised in that:
The Quick steam blowing method includes following specific steps:
1) intercepting close to the restructuring of the final stage steam inlet pipe road of turbine inlet is purging process pipe, the purging process pipe
For in 90 ° of curved right-angle elbow pipes, both ends are fixed with flange, one end is abutted flange, with the steam turbine admission line end
The flanged joint at end, the other end are outlet(discharge) flange, are connect with the steam turbine；
2) position of the purging process pipe is rotated by 90 ° upwards, is installed as the state of the outlet(discharge) flange vertically upward；
3) target plate is used as steam blowing detection plate, be mounted on the outlet(discharge) flange of the purging process pipe；
4) steam is passed through into the admission line to be purged；
5) it removes the steam blowing detection plate after purged every time to detect purging result, until testing result reaches
To requirement；
6) all after purging, the purging process pipe is changed into connection direction, is connect again with the steam turbine.
Another technical solution of the invention are as follows:
A kind of device for realizing Quick steam purging comprising purging process pipe and steam blowing detection plate,
90 ° of curved right-angle elbow pipes of the purging process Guan Weicheng, one end pass through the method for bolt and steam turbine admission line end
Blue detachably connected, the other end is detachably connected by bolt and the steam turbine.
Further, the purging process pipe both ends are fixed with flange.
Further, the steam blowing detection plate is restructured by the target plate of steam blowing detection part, and material is
Aluminium sheet, with a thickness of 2~3mm, width 30mm.
Compared with traditional steam blowing method, technical effect of the invention is as follows:
1) the final stage steam inlet pipe road repacking that will be close to turbine inlet is used as steam blowing process duct, there is no need to
Dedicated steam blowing process duct is still further made, relative production expense is saved, reduces costs, while greatly reducing and blowing
The dismounting workload for sweeping process duct, makes blow job reach conveniently effect.
2) original steam is purged into the target plate in detection part and replaces original steam blowing detection part, there is production letter
Easily, the advantages that low in cost and convenient for disassembly and assembly.
3) the method for the invention has the advantages that steam blowing is efficient and convenient, work efficiency is high, low in cost.
Detailed description of the invention
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 that the present invention carries out purged state diagram.
In figure, 1-admission line, 2-abutted flanges, 3-purging process pipes, 4-steam turbines, the detection of 5-steam blowings
Plate.
Specific embodiment
The present invention will be described in detail in the following with reference to the drawings and specific embodiments, but the guarantor that the present invention cannot be limited in this way
Protect range.
Fig. 1 show Quick steam blowing method of the present invention.Before carrying out steam blowing, admission line 1 is pressed
It is attached according to former connection type and the steam turbine 4, referring to fig. 2.
The Quick steam blowing method of the steam turbine admission line includes following specific steps:
1) restructuring of final stage steam inlet pipe road 1 intercepted close to 4 inlet of steam turbine is purging process pipe 3.The purging
Process duct 3 is in 90 ° of curved right-angle elbow pipes, and both ends are fixed with flange, and one end is abutted flange 2, by bolt with it is described
The flange of 1 end of admission line 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.
It regard a part restructuring in steam inlet pipe road 1 as purging process pipe 3, there is no need to still further make special steam to blow
Process duct is swept, relative production expense has been reduced；It is greatly reduced the dismounting workload of purging process pipe simultaneously, it is fast to have reached convenience
Prompt degree.
2) connection abutted flange 2 is reinstalled, the position of the purging process pipe 3 is rotated by 90 ° upwards, 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, be mounted on 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
It is determined according to the size of 3 outlet(discharge) flange of purging process pipe, while in the longitudinal direction according to 3 outlet(discharge) flange bolt of purging process pipe
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 carry out purging work；
5) after purged every time, 5 pairs of purging results of the steam blowing detection plate is removed and are detected, up to testing result
Reach requirement.
The work of disassembly 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 be checked.
6) all after purging, 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 connection direction, reply as former state and with described 4 the corresponding interface of steam turbine
It reconnects.
Present invention connection quickly, conveniently, and can ensure that all pipe paths have all carried out steam blowing.
It above are only a preferred embodiment of the invention, be not used to limit the present invention, it is all according in the scope of the invention
Equivalent changes and modifications made by holding, 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:
The Quick steam blowing method includes following specific steps:
1) intercepting close to the restructuring of the final stage steam inlet pipe road of turbine inlet is purging process pipe, purging process Guan Weicheng
90 ° of curved right-angle elbow pipes, both ends are fixed with flange, and one end is abutted flange, with steam turbine admission line end
Flanged joint, the other end are outlet(discharge) flange, are connect with the steam turbine；
2) position of the purging process pipe is rotated by 90 ° upwards, is installed as the state of the outlet(discharge) flange vertically upward；
3) target plate of steam blowing detection part is used as steam blowing detection plate, is mounted on the outlet of the purging process pipe
On flange；
4) steam is passed through into the admission line to be purged；
5) it removes the steam blowing detection plate after purged every time to detect purging result, until testing result reaches and wants
It asks；
6) all after purging, the purging process pipe is changed into connection direction, is connect again with the steam turbine.
2. a kind of steam blowing equipment for realizing claim 1 the method, it is characterised in that: the steam blowing equipment
Including purging process pipe and steam blowing detection plate, 90 ° of curved right-angle elbow pipes of the purging process Guan Weicheng, one end passes through spiral shell
Bolt and the flange of steam turbine admission line end are detachably connected, and the other end is detachable by bolt and the steam turbine
Ground connection.
3. steam blowing equipment according to claim 2, it is characterised in that: the purging process pipe both ends are fixed with
Flange.
4. steam blowing equipment according to claim 2, it is characterised in that: the steam blowing detection plate is blown by steam
The target plate for sweeping detection part is restructured, and material is aluminium sheet, with a thickness of 2~3mm, width 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 CN107327319A (en) | 2017-11-07 |
| CN107327319B true CN107327319B (en) | 2019-02-12 |
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ID=60198100
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| 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 |
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| Country | Link |
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| CN (1) | CN107327319B (en) |
Families Citing this family (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 |
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| Publication number | Publication date |
|---|---|
| CN107327319A (en) | 2017-11-07 |
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