CN106824864A - A kind of turbine on-line cleaning method - Google Patents
A kind of turbine on-line cleaning method Download PDFInfo
- Publication number
- CN106824864A CN106824864A CN201611214326.XA CN201611214326A CN106824864A CN 106824864 A CN106824864 A CN 106824864A CN 201611214326 A CN201611214326 A CN 201611214326A CN 106824864 A CN106824864 A CN 106824864A
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- CN
- China
- Prior art keywords
- turbine
- blast furnace
- furnace gas
- cleaning
- blade
- 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
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
Landscapes
- Cleaning In General (AREA)
Abstract
The present invention relates to turbine cleaning field, specifically a kind of turbine on-line cleaning method of utilization blast furnace gas excess pressure power generating.A kind of turbine on-line cleaning method, blast furnace gas supplies user after blast furnace gas pressure after turbine power generation is depressurized and uses, enter in blast furnace gas and a jet chimney is installed on the pipeline of turbine, valve is installed on jet chimney, when cleaning turbine is needed, valve is opened, makes blast furnace gas and mixture of steam impact turbine, so as to complete the cleaning to turbine.With air work temperature drop, devaporation goes out into elutriation, the salification that not only can effectively impact on blade, reaches the purpose of uniform cleaning blade, while also can dissolve the ammonium salt in a part of gas, prevents the attachment of ammonium salt.
Description
Technical field
The present invention relates to turbine cleaning field, specifically a kind of turbine on-line cleaning side of utilization blast furnace gas excess pressure power generating
Method.
Background technology
Blast furnace TRT is the important energy-saving equipment of blast fumance system.It is both an important energy source time of blast furnace production process
Receipts utilize equipment, are also to reduce noise pollution, improve environment and improve the important procedure of top pressure degree of regulation.Stable operation of unit
It is all extremely important to blast fumance and benefit increase.
Taiyuan Iron and Steel Co. 3# blast furnace TRT units in November, 07 puts into operation, and after unit puts into operation, the operation ratio of unit is inclined always
It is low, it is necessary to maintenance time it is also long, generation problem it is more be to cause unit failure to be stopped due to vane dust deposition
Machine and the machine shut down on treatment blade are grey.First Year put into operation because vane dust deposition and treatment dust stratification add up to shut down 10 times, it is accumulative to stop
The machine time is 1430 hours, due to the uneven dust stratification on blade, destroys original dynamic balancing of rotor, produces unit and shakes
It is dynamic, influence the normal table operation of unit.The dust stratification situation of blade and the Vibration Condition for causing, and due to the salification of blade
Increase not only can be due to salification it is uneven, cause the vibration of unit, can also influence the runner of blade, influence the generating effect of unit
Rate.The method of generally treatment salification can only routinely shut down takes off cylinder cleaning, not only wastes the cost of overhaul and uses and maintenance manpower, and
Unit is in stoppage in transit state during overhauling, and also influences the power benefit of unit.
The content of the invention
The technical problems to be solved by the invention are：How the turbine blade of blast furnace TRT is cleaned.
The technical solution adopted in the present invention is：A kind of turbine on-line cleaning method, it is characterised in that：Blast furnace gas passes through
User is supplied after blast furnace gas pressure is depressurized after turbine power generation to use, and enters in blast furnace gas and one is installed on the pipeline of turbine
Jet chimney, is provided with valve on jet chimney, when cleaning turbine is needed, open valve, makes blast furnace gas and steam
Gas impacts turbine, so as to complete the cleaning to turbine.
As a kind of preferred embodiment：Check-valves is also equipped with jet chimney.
The beneficial effects of the invention are as follows：The present invention introduces low-pressure steam and exists in unit operation by TRT entrances blast furnace gas
Line cleaning blade, a set of steam injected system is increased in entrance blast furnace gas Trunk Line, can be clear according to the extent control of cleaning
Wash the time, steam is mixed into turbine with blast furnace gas, and with air work temperature drop, devaporation goes out into elutriation, and one is
The salification that can effectively impact on blade, reaches the purpose of uniform cleaning blade, while in also can dissolve a part of gas
Ammonium salt, prevents the attachment of ammonium salt.The solution of last a large amount of dissolving ammonium salts is discharged by the dehydrator of unit gas-pipe line.Reach not
The purpose of stop cleaning blade.
Specific embodiment
Increase a low-pressure steam pipeline, selection for pipeline to upper in the inlet tube of Taiyuan Iron and Steel Co. 3# blast furnace TRT unit blast furnace gases
The low pressure steam pipe of DN25, is further added by the size that an adjustment valve adjusts quantity of steam, is controlled with the effect for adapting to cleaning and clear
The control of time is washed, in preventing coal gas from pouring in down a chimney steam, check-valves is additionally provided with pipe-line system prevents coal gas from flowing backwards.It is first
The steam for first injecting is mixed into turbine with blast furnace gas, and with air work temperature drop, devaporation goes out into elutriation, and one is
The salification that can effectively impact on blade, reaches the purpose of uniform cleaning blade, while in also can dissolve a part of gas
Ammonium salt, prevents the attachment of ammonium salt.The solution of a large amount of dissolving ammonium salts is discharged by the dehydrator of unit itself.
Implement on 3#TRT units within 2011.Accessed by the low-pressure steam pipe network in region using steam, access ginseng
Number is pressure 0.28MPa, and temperature is 280 DEG C, and the time control of cleaning was at 30~40 minutes every time.The normal operational shock control of unit
In≤50 μm/below s, the general level of the health of equipment gets a promotion system, and achieves good power benefit.
Claims (2)
1. a kind of turbine on-line cleaning method, it is characterised in that：Blast furnace gas is dropped by blast furnace gas pressure after turbine power generation
User is supplied after pressure to use, is entered in blast furnace gas and a jet chimney is installed on the pipeline of turbine, be provided with jet chimney
Valve, when cleaning turbine is needed, opens valve, makes blast furnace gas and mixture of steam impact turbine, so as to complete to turbine
Cleaning.
2. a kind of turbine on-line cleaning method according to claim 1, it is characterised in that：It is also equipped with stopping on jet chimney
Return valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611214326.XA CN106824864A (en) | 2016-12-26 | 2016-12-26 | A kind of turbine on-line cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611214326.XA CN106824864A (en) | 2016-12-26 | 2016-12-26 | A kind of turbine on-line cleaning method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106824864A true CN106824864A (en) | 2017-06-13 |
Family
ID=59136479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611214326.XA Pending CN106824864A (en) | 2016-12-26 | 2016-12-26 | A kind of turbine on-line cleaning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106824864A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2585408A1 (en) * | 1985-07-23 | 1987-01-30 | Proizv Ob Tur | Axial-flow gas turbine with contraction nozzle |
| CN102218408A (en) * | 2011-03-23 | 2011-10-19 | 山西太钢不锈钢股份有限公司 | Method for cleaning salt deposition on turbine blade |
| CN102678197A (en) * | 2012-06-01 | 2012-09-19 | 大连福佳·大化石油化工有限公司 | On-line washing method for steam turbine rotor |
| US20140174477A1 (en) * | 2007-03-27 | 2014-06-26 | Christopher J. Bloch | Method and apparatus for commissioning power plants |
| CN105134301A (en) * | 2015-10-08 | 2015-12-09 | 新兴铸管股份有限公司 | Turbomachine additionally provided with rotor and stator blade washing equipment by stewing |
-
2016
- 2016-12-26 CN CN201611214326.XA patent/CN106824864A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2585408A1 (en) * | 1985-07-23 | 1987-01-30 | Proizv Ob Tur | Axial-flow gas turbine with contraction nozzle |
| US20140174477A1 (en) * | 2007-03-27 | 2014-06-26 | Christopher J. Bloch | Method and apparatus for commissioning power plants |
| CN102218408A (en) * | 2011-03-23 | 2011-10-19 | 山西太钢不锈钢股份有限公司 | Method for cleaning salt deposition on turbine blade |
| CN102678197A (en) * | 2012-06-01 | 2012-09-19 | 大连福佳·大化石油化工有限公司 | On-line washing method for steam turbine rotor |
| CN105134301A (en) * | 2015-10-08 | 2015-12-09 | 新兴铸管股份有限公司 | Turbomachine additionally provided with rotor and stator blade washing equipment by stewing |
Non-Patent Citations (1)
| Title |
|---|
| 韩冲等: "邯钢1#TRT湿改干出现的问题分析与处理", 《华东科技（学术版）》 * |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170613 |
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| WD01 | Invention patent application deemed withdrawn after publication |