CN103438951A - Alloy steel wear-resisting anti-blocking type air volume and air velocity transducer - Google Patents
Alloy steel wear-resisting anti-blocking type air volume and air velocity transducer Download PDFInfo
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- CN103438951A CN103438951A CN2013104006680A CN201310400668A CN103438951A CN 103438951 A CN103438951 A CN 103438951A CN 2013104006680 A CN2013104006680 A CN 2013104006680A CN 201310400668 A CN201310400668 A CN 201310400668A CN 103438951 A CN103438951 A CN 103438951A
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Abstract
The invention discloses an alloy steel wear-resisting anti-blocking type air volume and air velocity transducer which is made of wear-resisting, high-temperature-resisting and corrosion-resisting alloy steel. The alloy steel comprises the following components in parts by weight of 10-11 parts of Ni, 26-28 parts of Gr, 3 parts of Cu, 2-3 parts of W, 2-3 parts of Si, 10-15 parts of rare earth and 0-40 parts of Te, and is made by adopting a conventional process. The alloy steel wear-resisting anti-blocking type air volume and air velocity transducer has the beneficial effects that the problems of wear resistance, high temperature resistance and corrosion resistance are solved by adopting a novel alloy steel material, the alloy steel material is tested in a seriously-worn region in a hearth of a fluidized bed boiler, which proves that the wear-resisting strength exceeds above 10 times that of a common wear-resisting material in the fluidized bed boiler; the alloy steel material is capable of resisting high temperature above 1400 DEG C, and is not remarkably corroded when being tested in an environment of strong acid and strong alkali. Therefore, the alloy steel has very high wear-resisting, high-temperature-resisting and corrosion-resisting properties, thus the problem commonly existing in a heat-engine plant in China at present can be solved.
Description
Technical field
The present invention relates to a kind of wear resistance alloyed block-proof type wind (cigarette) amount and the fast sensor of wind (cigarette), be mainly used in thermal power station's air and flue system.
Background technology
Current domestic wind and smoke scale and air velocity transducer have multiple pattern: wing type, venturi type, the Annubar formula, the Verabar formula, the V bevel-type, insert the double-venturi formula, the fan form, the multiple spot plug-in type these sensors are selected stainless steel mostly, spraying, lining porcelain technology, many with dust in thermal power station, serious wear zone and part high-temperature area are as wind, Secondary Air, tertiary air, coal pulverizer capacity wind, out of stock flue wind, the positions such as desulfurization duct wind, current domestic use material and technology can not well solve the problems such as wear-resisting anti-blocking straight length is little, a lot of sensors used less than half a year, have even less than the bimester, just by heavy wear, sensor can't normally be measured, bring obstacle to the safety and stability economical operation of a lot of thermal power stations, the large capacity unit long-term existence of part wind and smoke and is measured inaccurate problem, because there is no reliable technology and ripe product, the way there is no solves.
Summary of the invention
The purpose of this invention is to provide a kind of wear resistance alloyed block-proof type air quantity and air velocity transducer, to solve wear-resisting, high temperature resistant that prior art exists, corrosion resistant, anti-blocking performance is not good, and the not high problem of accuracy.
Technical scheme of the present invention is: a kind of wear resistance alloyed block-proof type air quantity and air velocity transducer, and the part of the main body of this air quantity and air velocity transducer and contacting with fluid medium adopts alloy steel wear-resisting, high temperature resistant, corrosion resistant to make; Sensor other not the part of contact medium adopt stainless steel to make.
Composition and weight fraction that described alloy steel wear-resisting, high temperature resistant, corrosion resistant comprises are: Ni:10 ~ 11; Gr:26 ~ 28; Cu:3; W:2 ~ 3; Si:2 ~ 3; Rare earth: 10 ~ 15; Te:0 ~ 40.
The invention has the beneficial effects as follows: use novel alloy Steel material technology to solve wear-resisting, high temperature resistant, corrosion-resistant problem, this alloy steel material zone really of wearing and tearing the most seriously in fluid bed boiler furnace is tested, evidence, in the fluidized bed burner hearth, scuff resistance surpasses general high-abrasive material more than 10 times; Can be anti-high temperature more than 1400 ℃; In strong acid and strong base, test, all without obvious corrosion phenomenon.Therefore, this kind of alloy steel has very high wear-resisting, high temperature resistant, decay resistance, can solve the ubiquitous problem of current domestic thermal power plant.
Embodiment
A kind of wear resistance alloyed block-proof type air quantity of the present invention and air velocity transducer, is characterized in that, this air quantity and air velocity transducer adopt alloy steel wear-resisting, high temperature resistant, corrosion resistant to make.
Composition and weight fraction that described alloy steel wear-resisting, high temperature resistant, corrosion resistant comprises are: Ni:10 ~ 11; Gr:26 ~ 28; Cu:3; W:2 ~ 3; Si:2 ~ 3; Rare earth: 10 ~ 15; Te:0 ~ 40; Technique is made routinely.Sensor adopts the casting processing technology to be made.The matured product that the external form of sensor and principle and Some Domestic producer manufacture is basic identical, is mainly to have selected novel alloy steel matter, has solved wear-resisting and corrosion resistant problem.
Ni:10 in the present invention ~ 11; Gr:26 ~ 28; Cu:3; W:2 ~ 3; Si:2 ~ 3; Rare earth: 10 ~ 15; The composition of Te:0 ~ 40 and content have played vital role to wear-resisting, high temperature resistant, the corrosion resistant characteristic that improves alloy steel.Meet wind (cigarette) amount and the fast sensor die of wind (cigarette) of national standard than mature technology in conjunction with exploitation; Manufacture experimently into novel alloy steel matter wind (cigarette) amount and the fast sensor of wind (cigarette); Carry out wear-resisting, high temperature resistant, corrosion resistant, anti-blocking, accuracy testing.
Tested evidence by zone really that this alloy steel material of the present invention is worn and torn the most seriously in fluid bed boiler furnace: in the fluidized bed burner hearth, scuff resistance surpasses general high-abrasive material more than 10 times; Can be anti-high temperature more than 1400 ℃; In strong acid and strong base, test, all without obvious corrosion phenomenon.Facts have proved, this kind of alloy steel has very high wear-resisting, high temperature resistant, decay resistance, according to our company's application experience in recent years, with this kind of new material development wind (cigarette) amount and the fast sensor of wind (cigarette), have good effect, can solve ubiquitous wear-resisting, high temperature resistant, the problem that decay resistance is bad of current domestic thermal power plant.
This kind of alloy material stood the test that the strong high temperature of fluidized-bed combustion boiler strong wearing and tearing reach 6 wheat harvesting periods, prove resistance to wear and high temperature resistance aspect very successful effect is arranged.This alloy steel is placed in respectively to strong acid and strong base, does not also find that there is and obviously be subject to rotten phenomenon.
Prove that this kind of material possesses fully wear-resisting, high temperature resistant, corrosion resistant, can measure and the fast sensor of wind (cigarette) with research and development wind (cigarette) fully.Replaced traditional high-abrasive material with this kind of alloy steel, and had on existing company primary air system and tested at new source, the electric Tengzhou of China thermoelectricity, two wheat harvesting periods, any abnormal occurrence, do not occur in signal stabilization.
That effectively solves thermal power plant's air and flue system air quantity air velocity transducer wear problem the present invention, guarantees the unit safety operation of stabilizing the economy; Often avoid once large unit air quantity protection malfunction, directly save fuel oil start expense more than 600,000 yuan can to power plant; The air measuring accurate stable, can make boiler efficiency meet or exceed design load; Otherwise, if air quantity is inaccurate, coal-air ratio is joined bad, seldom boiler has and reaches design efficiency.Conservative estimation: the every decline 1% of boiler efficiency, power plant's loss percentage, coa consumption rate, pollution rate all can increase by unit capacity is corresponding, resolves this problem, can bring huge economic benefit to power plant.
Claims (2)
1. a wear resistance alloyed block-proof type air quantity and air velocity transducer, is characterized in that, the part of the main body of this air quantity and air velocity transducer and contacting with fluid medium adopts alloy steel wear-resisting, high temperature resistant, corrosion resistant to make; Sensor other not the part of contact medium adopt stainless steel to make.
2. wear resistance alloyed block-proof type air quantity according to claim 1 and air velocity transducer, is characterized in that, composition and weight fraction that described alloy steel wear-resisting, high temperature resistant, corrosion resistant comprises are: Ni:10 ~ 11; Gr:26 ~ 28; Cu:3; W:2 ~ 3; Si:2 ~ 3; Rare earth: 10 ~ 15; Te:0 ~ 40.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013104006680A CN103438951A (en) | 2013-09-06 | 2013-09-06 | Alloy steel wear-resisting anti-blocking type air volume and air velocity transducer |
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| CN2013104006680A CN103438951A (en) | 2013-09-06 | 2013-09-06 | Alloy steel wear-resisting anti-blocking type air volume and air velocity transducer |
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| CN103438951A true CN103438951A (en) | 2013-12-11 |
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| CN2013104006680A Pending CN103438951A (en) | 2013-09-06 | 2013-09-06 | Alloy steel wear-resisting anti-blocking type air volume and air velocity transducer |
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Citations (8)
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| CN1316019A (en) * | 1999-06-29 | 2001-10-03 | 桑德维克公司 | Duplex stainless steel |
| CN1436873A (en) * | 2002-02-05 | 2003-08-20 | 住友金属工业株式会社 | Two phase stainless steel used in urea-producing equipment |
| CN101057002A (en) * | 2004-11-04 | 2007-10-17 | 桑德维克知识产权股份公司 | Duplex stainless steel |
| JP2008195985A (en) * | 2007-02-09 | 2008-08-28 | Hitachi Metals Ltd | Cast ferritic stainless steel having excellent acid resistance, and cast member |
| CN101341271A (en) * | 2006-07-13 | 2009-01-07 | 新日铁住金不锈钢株式会社 | Rolled austenite stainless steel plate having thichkess of 100 mm or more and method for production thereof |
| CN101457328A (en) * | 2009-01-04 | 2009-06-17 | 上海大学 | High chromium, high manganese and high nitrogen biphase stainless steel and preparation method thereof |
| CN101497964A (en) * | 2009-03-02 | 2009-08-05 | 暨南大学 | High hardness and toughness low alloy abrasion resistant steel and use thereof |
| CN102985404A (en) * | 2010-06-24 | 2013-03-20 | 斯塔米卡邦有限责任公司 | Urea plant |
-
2013
- 2013-09-06 CN CN2013104006680A patent/CN103438951A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316019A (en) * | 1999-06-29 | 2001-10-03 | 桑德维克公司 | Duplex stainless steel |
| CN1436873A (en) * | 2002-02-05 | 2003-08-20 | 住友金属工业株式会社 | Two phase stainless steel used in urea-producing equipment |
| CN1865484A (en) * | 2002-02-05 | 2006-11-22 | 住友金属工业株式会社 | Two-phase stainless steel for urea-producing plant |
| CN101057002A (en) * | 2004-11-04 | 2007-10-17 | 桑德维克知识产权股份公司 | Duplex stainless steel |
| CN101341271A (en) * | 2006-07-13 | 2009-01-07 | 新日铁住金不锈钢株式会社 | Rolled austenite stainless steel plate having thichkess of 100 mm or more and method for production thereof |
| JP2008195985A (en) * | 2007-02-09 | 2008-08-28 | Hitachi Metals Ltd | Cast ferritic stainless steel having excellent acid resistance, and cast member |
| CN101457328A (en) * | 2009-01-04 | 2009-06-17 | 上海大学 | High chromium, high manganese and high nitrogen biphase stainless steel and preparation method thereof |
| CN101497964A (en) * | 2009-03-02 | 2009-08-05 | 暨南大学 | High hardness and toughness low alloy abrasion resistant steel and use thereof |
| CN102985404A (en) * | 2010-06-24 | 2013-03-20 | 斯塔米卡邦有限责任公司 | Urea plant |
Non-Patent Citations (1)
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Application publication date: 20131211 |