CN101298841A - Blade descaling method for blast furnace gas remaining pressure power generation turbine - Google Patents
Blade descaling method for blast furnace gas remaining pressure power generation turbine Download PDFInfo
- Publication number
- CN101298841A CN101298841A CNA2008101147972A CN200810114797A CN101298841A CN 101298841 A CN101298841 A CN 101298841A CN A2008101147972 A CNA2008101147972 A CN A2008101147972A CN 200810114797 A CN200810114797 A CN 200810114797A CN 101298841 A CN101298841 A CN 101298841A
- Authority
- CN
- China
- Prior art keywords
- turbine
- unit
- pipeline
- water
- scale removal
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000010248 power generation Methods 0.000 title claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000005202 decontamination Methods 0.000 claims description 4
- 230000003588 decontaminative effect Effects 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 claims description 2
- 238000010977 unit operation Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 241001584775 Tunga penetrans Species 0.000 abstract 1
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Landscapes
- Control Of Turbines (AREA)
Abstract
A vane scale removal method for blast gas overpressure power turbine belongs to mechanical scale removal technical field; the technical field of mechanical; the scale removal steps comprise: providing interplant purification cycle water for the steel factory; the pressure of the clean circulating water is 0.5MPa-0.8MPa for cooling the TRT generator and the lubricating system; the contact is opened at the clean circulating water pipeline surround the turbine; the stainless manual ball valve with diameter DN 20mm is installed, and seamless steel tube with diameter DN 20 is laid; the pipeline is led to the outlet of the turbine and entered into inside of the unit through the opening pipeline of the turbine; rear end of the high presser water pipe is flattened to produce nozzle to adhere to 5-8 mm the surface of the secondary dynamic leaf; the unit runs for 2-2.5 months or when the bearing vibration value of the turbine increases, the rotate speed of the unit is reduced to the rotate speed of the jigger; the water door is opened to spray wash the vane or recover to start the machine after the pipeline leaks at the lowest position. The advantages of the invention is that it solves the problem of stopping the machine of the unit, reduces the time of stopping the unit, improves generated energy and reduces the maintenance operation cost.
Description
Technical field
The invention belongs to mechanical descaling's technical field, a kind of blade descaling method that is used on the blast furnace gas remaining pressure power generation turbine particularly is provided, be applicable in the blade scale removal that utilizes on the blast furnace gas remaining pressure power generation turbine of dry dedusting technology.
Background technique
Blast furnace coal gas dry-method dedusting method uses more and more widely at present, under the dry method dust pattern, and the serious phenomenon of blast furnace gas excess pressure power generating (hereinafter to be referred as TRT) turbine blade ubiquity fouling.The blade fouling causes rotor unbalance, must remove the blade fouling after the TRT vibration exceeding the standard is shut down and could start shooting.Present conventional descaling method is to carry out turbine engine to take off cylinder, and rotor is taken out the back and cleaned with high pressure water gun.This descaling method time is long, expense is high, and turbine engine need be shut down 4-6 days, and it is many not only to drop into manpower and materials, and influences the TRT generated energy.
Summary of the invention
The object of the present invention is to provide a kind of blade descaling method that is used on the blast furnace gas remaining pressure power generation turbine; thereby solved the serious problem that causes compressor emergency shutdown of TRT turbine rotor movable vane blade fouling under the dry method dust, for minimizing compressor emergency shutdown time, increase generated energy, reduction maintenance operation cost have been brought into play decisive role.
Technological scheme:
1: lay the pipeline of purifying waste water: Iron And Steel Plant all provide decontamination cycle water between the factory border (being called for short clean circulating water down), and its clean circulating water pressure is 0.5Mpa-0.8Mpa, generally is used for the cooling of TRT generator and lubrication system.Leave contact (this connecting point position is selected in after the first road valve that clean circulating water enters the TRT zone) from the clean circulating water pipeline of turbine engine periphery, nominal diameter is installed is 1 of the stainless steel manual ball valve of 20mm, and to lay nominal diameter be the 20mm seamless steel pipe.This seamless steel pipe causes the turbine engine outlet, enters unit inside from the perforate of turbine engine outlet conduit.The terminal flattening of high-pressure water pipe made nozzle, presses close to secondary movable vane surface 5-8cm.
2, descaling method: unit operation 2～2.5 months, or the turbine arbor shakes value when occur raising, with generating unit speed reduce to the jiggering rotating speed (5～10r/min), opening water spray joint door hydro-peening blade 1-2 hour, recover start in the pipeline lowest part back that sluices at last.
The effect of invention:
After adopting on the blast furnace differential pressure power generation, the TRT gas pipe line need not be replaced, unit is taken off cylinder, processing time short (3-4 hour), do not had other harmful effects without off-line.After adopting this technology, blast furnace differential pressure power generation turbine unit is once extended to present 8 months and is initiatively taken off cylinder once by the passive cylinder of taking off of original 1 wheat harvesting period, saves in 1 year to take off about 800,000 yuan of the cylinder cost of overhaul, and about 3,000,000 degree of multiple electricity add up to and increase income and economize on spending about 2,300,000 yuan.
Description of drawings
Fig. 1 is a blast furnace gas remaining pressure power generation turbine blade scale removal schematic representation.Wherein, decontamination cycle water lines 1, diameter DN20 Stainless Steel Ball Valve 2, turbine engine outlet conduit 3, decontamination cycle water spray and movable vane blade 4, turbine engine inlet pipe 5, turbine engine and movable vane 6, generator 7, exciter 8.
Embodiment
The inventive method is tried out in the first 1# of Qin blast furnace differential pressure power generation turbine unit.Utilize the 1# blast furnace to stop production chance that example repaiies is drawn one road DN20 pipeline 1 from TRT zone clean circulating water main line (the accompanying drawing 1), installs 2 one of DN20 Stainless Steel Ball Valves on the arm additional, and pipeline adopts seamless steel pipe.Pipeline lays to turbine engine outlet port rice along turbine engine outlet conduit 3 and support, perforate from here, and the DN20 water pipe enters the TRT outlet conduit and extends to turbine rotor secondary movable vane 6, and apart from movable vane blade back surface 5cm, water pipe is terminal to be flattened, to help to improve water speed.
After shower is installed, per 2 months or observe the TRT turbine rotor axle value of shaking, in the axle value tissue T RT shutdown when rising sign is arranged of shaking, utilize jiggering driven by motor rotor to slowly run, be no more than 10r/min..The clean circulating water tube valve that this opens DN20 washes the rotor movable vane, cuts off the water after about 1-2 hour.TRT outlet conduit drain valve opened unload water, tissue start at last.
Claims (4)
1, a kind of blade descaling method that is used on the blast furnace gas remaining pressure power generation turbine is characterized in that the scale removal step is:
(1) Iron And Steel Plant provide decontamination cycle water between the factory border, and its clean circulating water pressure is 0.5Mpa-0.8Mpa, is used for the cooling of TRT generator and lubrication system; Leave contact from the clean circulating water pipeline of turbine engine periphery, nominal diameter is installed is 1 of the stainless steel manual ball valve of 20mm, and to lay nominal diameter be the 20mm seamless steel pipe; This seamless steel pipe causes the turbine engine outlet, enters unit inside from the perforate of turbine engine outlet conduit; The terminal flattening of high-pressure water pipe made nozzle, presses close to secondary movable vane surface 5-8cm;
(2) scale removal: unit operation 2～2.5 months, or the turbine arbor shakes value when occur raising, and generating unit speed is reduced to the jiggering rotating speed, opening water spray joint door hydro-peening blade 1-2 hour, recover start in the pipeline lowest part back that sluices at last.
2, in accordance with the method for claim 1, it is characterized in that the hydraulic pressure of piping network is 0.5Mpa-0.8Mpa.
3, in accordance with the method for claim 1, it is characterized in that described jiggering rotating speed is 5～10r/min for being no more than.
4, in accordance with the method for claim 1, it is characterized in that the position of leaving contact is selected in after the first road valve that clean circulating water enters the TRT zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101147972A CN101298841B (en) | 2008-06-12 | 2008-06-12 | Blade descaling method for blast furnace gas remaining pressure power generation turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101147972A CN101298841B (en) | 2008-06-12 | 2008-06-12 | Blade descaling method for blast furnace gas remaining pressure power generation turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101298841A true CN101298841A (en) | 2008-11-05 |
| CN101298841B CN101298841B (en) | 2011-04-20 |
Family
ID=40078771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101147972A Expired - Fee Related CN101298841B (en) | 2008-06-12 | 2008-06-12 | Blade descaling method for blast furnace gas remaining pressure power generation turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101298841B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922313A (en) * | 2009-06-09 | 2010-12-22 | 同济大学 | Method for suppressing steam turbine for geothermal power generation from scaling |
| TWI664281B (en) * | 2018-07-18 | 2019-07-01 | 中國鋼鐵股份有限公司 | Treatment method for reducing fouling on blade of blast furnace top gas recovery turbine unit and apparatus thereof |
| CN113462836A (en) * | 2021-07-10 | 2021-10-01 | 湖南华菱湘钢节能发电有限公司 | Blast furnace gas adds medicine scale removal device |
-
2008
- 2008-06-12 CN CN2008101147972A patent/CN101298841B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922313A (en) * | 2009-06-09 | 2010-12-22 | 同济大学 | Method for suppressing steam turbine for geothermal power generation from scaling |
| CN101922313B (en) * | 2009-06-09 | 2013-06-26 | 同济大学 | Method for suppressing steam turbine for geothermal power generation from scaling |
| TWI664281B (en) * | 2018-07-18 | 2019-07-01 | 中國鋼鐵股份有限公司 | Treatment method for reducing fouling on blade of blast furnace top gas recovery turbine unit and apparatus thereof |
| CN113462836A (en) * | 2021-07-10 | 2021-10-01 | 湖南华菱湘钢节能发电有限公司 | Blast furnace gas adds medicine scale removal device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101298841B (en) | 2011-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101298841B (en) | Blade descaling method for blast furnace gas remaining pressure power generation turbine | |
| CN102284453A (en) | Pure water cleaning system of turbine oil pipeline | |
| CN102007290B (en) | Method and device for reduction of wear in a water turbine | |
| CN105201567A (en) | Steam turbine circulation part cleaning system and cleaning method | |
| CN101737097A (en) | Power generation device and method of excessive pressure of furnace top of full-dry type blast furnace | |
| CN201600045U (en) | Cooling tower applying water turbine | |
| CN113617106A (en) | Magnetic suspension hydraulic rotary grid | |
| CN202140629U (en) | Cleaning device for tiny drag slow shut check valve | |
| CN211872022U (en) | Dry-type TRT sweeps deashing system | |
| CN202180071U (en) | Pure water cleaning system for oil pipeline of steam turbine | |
| CN2779328Y (en) | High pressure water jetting online cleaning robot for power plant condenser | |
| CN101598495B (en) | Recovery device for condensed water | |
| CN201433795Y (en) | Special scale eliminator for turbine | |
| CN109763867B (en) | Method and system for descaling through-flow part of steam turbine | |
| CN108507367A (en) | A kind of exhaust steam of electric power plant reuse means | |
| CN210889035U (en) | Condensing steam turbine of cement kiln low-temperature waste heat power generation system | |
| CN209908580U (en) | Descaling system for turbine through-flow part | |
| CN206495828U (en) | A kind of cleaning device for the widely different flow chamber Inner guide blade of air blower | |
| CN207324315U (en) | A kind of local pressurizing device of dust pelletizing system | |
| CN209604152U (en) | A kind of combustion engine water wash system | |
| CN102504871A (en) | Isolating device for blown gas reclaiming valve | |
| CN202808834U (en) | Power generating and steam-driven air supply system for recovering excessive pressure and afterheat energy from blast-furnace gas | |
| CN201535180U (en) | Secondary moving blade flushing device of blast furnace gas top pressure power generation turbomachine | |
| CN201129478Y (en) | Revolving furnace RD valve with seal groove | |
| CN111156497B (en) | Steam turbine unit system and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 066326 Hebei province Qinhuangdao Funing County duzhuang Township Qinhuangdao first Qin metal material Co., Ltd. Co-patentee after: SHOUGANG GROUP Co.,Ltd. Patentee after: QINHUANGDAO SHOUQIN METAL MATERIAL Co.,Ltd. Address before: 066326 Hebei province Qinhuangdao Funing County duzhuang Township Qinhuangdao first Qin metal material Co., Ltd. Co-patentee before: SHOUGANG Corp. Patentee before: QINHUANGDAO SHOUQIN METAL MATERIAL Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190408 Address after: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee after: SHOUGANG GROUP Co.,Ltd. Address before: 066326 Hebei province Qinhuangdao Funing County duzhuang Township Qinhuangdao first Qin metal material Co., Ltd. Co-patentee before: SHOUGANG GROUP Co.,Ltd. Patentee before: QINHUANGDAO SHOUQIN METAL MATERIAL Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 |