CN102269017B - High-temperature rotary separation board and spraying method thereof - Google Patents
High-temperature rotary separation board and spraying method thereof Download PDFInfo
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- CN102269017B CN102269017B CN201010189129.3A CN201010189129A CN102269017B CN 102269017 B CN102269017 B CN 102269017B CN 201010189129 A CN201010189129 A CN 201010189129A CN 102269017 B CN102269017 B CN 102269017B
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- metallic material
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Abstract
The invention discloses a high-temperature rotary separation board. The rotary separation plate comprises a separation board body and a rotary ring, wherein a separation board window is arranged on the separation board body; the separation board body and the rotary ring form a pair of friction components; high-temperature-resistant self-lubricating metallic materials are arranged on both the friction surface of the separation board body and the friction surface of the rotary ring. The high-temperature-resistant self-lubricating metallic materials are low in friction coefficient, high in surface hardness, excellent in strength, and high-temperature-resistant, so the mechanical performance of the rotary separation board can be increased effectively, and service life of the rotary separation board can be prolonged; besides, the work temperature of the rotary separation board is as high as 550 DEG C, which breaks through temperature limitation of a conventional rotary separation board, so that application range of the rotary separation board is expanded greatly.
Description
Technical field
The present invention relates to a kind of rotating barrier, particularly the spraying method of a kind of resistant to elevated temperatures rotating barrier and this high-temperature rotary separation board.
Background technique
Rotating barrier is that steam turbine is realized the vitals that adjustment is drawn gas, and adopts rotating barrier can make steam turbine structure simplify, and reliable performance, reduces costs advantage.Rotating barrier mainly comprises the parts such as partition body, nozzle, swivel becket and gimbal.By the rotation of swivel becket, swivel becket window on swivel becket and the partition body window relative position on partition body are changed, thereby change the flow area of rotating barrier.During rotating barrier work (window portion is divided unlatching), swivel becket is because the effect of steam power is near partition body, produce friction with partition body, formed friction pair, this friction pair is generally comprised of cast iron and cast steel material, because the operating temperature of cast iron is generally below 300 ℃, conventional rotating barrier cannot be operated in more than 300 ℃, thereby the using scope of rotating barrier is restricted.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the technical problem to be solved in the present invention is to provide a kind of resistant to elevated temperatures rotating barrier.
For solving the problems of the technologies described above, the present invention adopts following technological scheme:
A kind of high-temperature rotary separation board, comprise partition body and swivel becket, described partition body is provided with partition window, described swivel becket is provided with swivel becket window, described partition body and described swivel becket form friction pair, on the rubbing surface of described partition body and the rubbing surface of described swivel becket, are equipped with high temperature resistant self-lubricating metallic material.
Preferably, the rubbing surface of described swivel becket is provided with groove, and described high temperature resistant self-lubricating metallic material is positioned at described groove, and in groove, the height of high temperature resistant self-lubricating metallic material and the rubbing surface height of described swivel becket are consistent.
Preferably, described groove comprises two annular grooves, several radial groove and several oblique groove, described two annular grooves are concentric circle, described two annular grooves lay respectively at described swivel becket window peripheral edge and inner periphery place, described radial groove is positioned at the radial edges place of described swivel becket window both sides, and described oblique groove is between two adjacent radial grooves.
Preferably, the angle between described radial groove and described oblique groove is 60 °.
Preferably, the surrounding of described partition window offers conduit, described conduit is positioned on the rubbing surface of described partition body, and described high temperature resistant self-lubricating metallic material is positioned at described conduit, and in conduit, the height of high temperature resistant self-lubricating metallic material and the rubbing surface height of described partition body are consistent.
Preferably, described high temperature resistant self-lubricating metallic material is metal molybdenum or Ni bag graphite.
Technique scheme has following beneficial effect: this high-temperature rotary separation board is provided with high temperature resistant self-lubricating metallic material on two rubbing surfaces of partition body and swivel becket formation friction pair, because high temperature resistant self-lubricating metallic material has low frictional factor, high surface hardness, good, the resistant to elevated temperatures characteristic of intensity, therefore it can effectively improve the mechanical property of rotating barrier, extend the working life of rotating barrier, and the operating temperature that can make rotating barrier can reach 550 ℃, broken through the temperature limiting of conventional rotating barrier, the Applicable scope of rotating barrier is expanded greatly.
The present invention also provides a kind of spraying method of above-mentioned high-temperature rotary separation board, it comprises the steps: to offer groove on the rubbing surface of swivel becket, in groove, spray high temperature resistant self-lubricating metallic material, make high temperature resistant self-lubricating metallic material fill up described groove, then the rubbing surface of swivel becket is polished to processing, make the height of high temperature resistant self-lubricating metallic material in groove consistent with the height of swivel becket rubbing surface; Surrounding at partition body rubbing surface upper clapboard window is offered conduit, in conduit, spray high temperature resistant self-lubricating metallic material, make high temperature resistant self-lubricating metallic material fill up described conduit, then partition body rubbing surface is polished to processing, make the height of high temperature resistant self-lubricating metallic material in conduit consistent with the height of swivel becket rubbing surface.
By this spraying method, swivel becket or partition body are carried out the spraying of high temperature resistant self-lubricating metallic material, can effectively prevent that high temperature resistant self-lubricating metallic material from coming off on swivel becket or partition body, extend the working life of rotating barrier, and this spraying method is processed and equipment technique is simple, processing and assembling amount is less relatively, can effectively improve the efficiency of assembling of swivel becket and partition body.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation of embodiment of the present invention swivel becket rubbing surface.
Fig. 3 is the enlarged diagram at A place in Fig. 2.
Fig. 4 be in Fig. 3 M-M to sectional view.
Fig. 5 is the structural representation of embodiment of the present invention partition body rubbing surface.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As shown in Figure 1, this high-temperature rotary separation board comprises partition body 1, swivel becket 2 and gimbal 3, and swivel becket 2 is between partition body 1 and gimbal 3.During the work of this rotating barrier, swivel becket 2 is because the effect of steam power is near partition body 1, and swivel becket 2 forms friction pair with partition body 1.On the rubbing surface of this friction pair central diaphragm body 1 and the rubbing surface of swivel becket 2, be equipped with high temperature resistant self-lubricating metallic material, this high temperature resistant self-lubricating metallic material can adopt metal molybdenum or Ni bag graphite.
As shown in Figure 2,3, on swivel becket 2 along the several swivel becket windows 21 of being provided with of its even circumferential, swivel becket rubbing surface is provided with groove, and high temperature resistant self-lubricating metallic material is positioned at groove, and in groove, the height of high temperature resistant self-lubricating metallic material is consistent with the height of swivel becket 2 rubbing surfaces.Groove comprises two annular grooves 22,23 and several radial groove 24 and several oblique groove 25, annular groove 22 is positioned at the place, peripheral edge of swivel becket window 21, annular groove 23 is positioned at the inner periphery place of swivel becket window 21, radial groove 24 is positioned at the radial edges place of swivel becket window 21 both sides, oblique groove 25 is between two adjacent radial grooves, and the angle between radial groove 24 and oblique groove 25 is 60 °.
Again as shown in Figure 5, on partition body 1 along the several partition windows 11 of being provided with of its even circumferential, the surrounding of partition window 11 offers conduit 12, conduit 12 is positioned on the rubbing surface of partition body 1, high temperature resistant self-lubricating metallic material is positioned at conduit 12, and the height of the interior high temperature resistant self-lubricating metallic material of conduit 12 is consistent with the rubbing surface height of partition body 1.
Although adopt on the rubbing surface of said mechanism partition body 1 and the rubbing surface of swivel becket 2 and do not apply high temperature resistant self-lubricating metallic material completely, but while working due to rotating barrier, swivel becket opened and closed positions angle is less, at partition body 1 with swivel becket 2 during in relative spin friction, its frictional contact surface still mainly concentrates on the part that surface applies high temperature resistant self-lubricating metallic material, and adopt this structure also can effectively increase frictional contact surface, reduce the wear extent of friction pair, high-temperature self-lubrication metallic material is positioned at groove or conduit, can prevent that high temperature resistant self-lubricating metallic material from coming off from corresponding rubbing surface.High temperature resistant self-lubricating metallic material has low frictional factor, high surface hardness, good, the resistant to elevated temperatures characteristic of intensity, can effectively improve the mechanical property of friction pair, extends the working life of this rotating barrier, improves the operating temperature of rotating barrier.According to detection, this high-temperature rotary separation board can serviceability temperature be up to 550 ℃, the low <0.2 of friction factor under high temperature, the high HRC45-50 of surface hardness, surperficial static load 60MPa, function admirable, broken through the temperature limiting of conventional rotating barrier, the Applicable scope of rotating barrier is expanded greatly.
The invention also discloses a kind of spraying method of above-mentioned high-temperature rotary separation board, to the method that sprays high temperature resistant self-lubricating metallic material on swivel becket rubbing surface and partition body rubbing surface.
As shown in Figure 2; while spraying high temperature resistant self-lubricating metallic material on the rubbing surface to swivel becket 2; first on swivel becket rubbing surface, offer the groove that the degree of depth is 1mm; groove comprises annular groove 22,23 above-mentioned; radial groove 24 and oblique groove 25; then by spraying equipment, in these grooves, spray high temperature resistant self-lubricating metallic material, do not need the place of spraying with being protected.As shown in Figure 4, the spraying at oblique groove 25 places of take is example, when high temperature resistant self-lubricating metallic material 4 fills up after groove, by polisher, this swivel becket rubbing surface is polished to processing, make the height of the interior high temperature resistant self-lubricating metallic material 4 of oblique groove 25 consistent with the height of swivel becket 2 rubbing surfaces.When polishing processing, the rubbing surface of swivel becket 2 suitably can be polished off to a part, as the degree of depth of groove is polished to 0.8mm or 0.5mm, level and smooth to guarantee between high temperature resistant self-lubricating metallic material 4 and swivel becket rubbing surface.
As shown in Figure 5, when spraying high temperature resistant self-lubricating metallic material on partition body rubbing surface, can first in the surrounding of each partition window 11 of partition body rubbing surface, offer conduit 12, then by spraying equipment to the interior spraying high temperature resistant self-lubricating of these conduits 12 metallic material, after high temperature resistant self-lubricating metallic material fills up conduit 12, by polisher, this partition body rubbing surface is polished to processing, make the height of the interior high temperature resistant self-lubricating metallic material of conduit 12 consistent with the height of partition body rubbing surface.When polishing processing, the rubbing surface of partition body suitably can be polished off to a part, level and smooth to guarantee between high-temperature self-lubrication metallic material and partition body rubbing surface, its method is the same with the polishing process of swivel becket rubbing surface.
By above-mentioned spraying method, swivel becket or partition body are carried out the spraying of high temperature resistant self-lubricating metallic material, can effectively prevent that high temperature resistant self-lubricating metallic material from coming off on swivel becket rubbing surface or partition body rubbing surface, extend the working life of rotating barrier, and this spraying method is processed and equipment technique is simple, processing and assembling amount is less relatively, can effectively improve the efficiency of assembling of swivel becket and partition body.
The high-temperature rotary separation board and the spraying method thereof that above the embodiment of the present invention are provided are described in detail; for one of ordinary skill in the art; thought according to the embodiment of the present invention; all will change in specific embodiments and applications; in sum; this description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (6)
1. a high-temperature rotary separation board, comprise partition body and swivel becket, described partition body is provided with partition window, described swivel becket is provided with swivel becket window, described partition body and described swivel becket form friction pair, it is characterized in that: on the rubbing surface of described partition body and the rubbing surface of described swivel becket, be equipped with high temperature resistant self-lubricating metallic material, the rubbing surface of described swivel becket is provided with groove, described high temperature resistant self-lubricating metallic material is positioned at described groove, in groove, the height of high temperature resistant self-lubricating metallic material and the rubbing surface height of described swivel becket are consistent, the operating temperature of described high-temperature rotary separation board can reach 550 ℃.
2. high-temperature rotary separation board according to claim 1, it is characterized in that: described groove comprises two annular grooves, several radial groove and several oblique groove, described two annular grooves are concentric circle, described two annular grooves lay respectively at described swivel becket window peripheral edge and inner periphery place, described radial groove is positioned at the radial edges place of described swivel becket window both sides, and described oblique groove is between two adjacent radial grooves.
3. high-temperature rotary separation board according to claim 2, is characterized in that: the angle between described radial groove and described oblique groove is 60 °.
4. high-temperature rotary separation board according to claim 1, it is characterized in that: the surrounding of described partition window offers conduit, described conduit is positioned on the rubbing surface of described partition body, described high temperature resistant self-lubricating metallic material is positioned at described conduit, and in conduit, the height of high temperature resistant self-lubricating metallic material and the rubbing surface height of described partition body are consistent.
5. high-temperature rotary separation board according to claim 1, is characterized in that: described high temperature resistant self-lubricating metallic material is metal molybdenum or Ni bag graphite.
6. a spraying method for high-temperature rotary separation board, is characterized in that, it comprises the steps:
On the rubbing surface of swivel becket, offer groove, in groove, spray high temperature resistant self-lubricating metallic material, make high temperature resistant self-lubricating metallic material fill up described groove, then the rubbing surface of swivel becket is polished to processing, make the height of high temperature resistant self-lubricating metallic material in groove consistent with the height of swivel becket rubbing surface;
Surrounding at partition body rubbing surface upper clapboard window is offered conduit, in conduit, spray high temperature resistant self-lubricating metallic material, make high temperature resistant self-lubricating metallic material fill up described conduit, then partition body rubbing surface is polished to processing, make the height of high temperature resistant self-lubricating metallic material in conduit consistent with the height of swivel becket rubbing surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010189129.3A CN102269017B (en) | 2010-06-01 | 2010-06-01 | High-temperature rotary separation board and spraying method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010189129.3A CN102269017B (en) | 2010-06-01 | 2010-06-01 | High-temperature rotary separation board and spraying method thereof |
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| CN102269017A CN102269017A (en) | 2011-12-07 |
| CN102269017B true CN102269017B (en) | 2014-02-19 |
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| CN201010189129.3A Active CN102269017B (en) | 2010-06-01 | 2010-06-01 | High-temperature rotary separation board and spraying method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110454244A (en) * | 2019-08-30 | 2019-11-15 | 北京全四维动力科技有限公司 | The steam turbine rotary spacing plate and its manufacturing method being slidably matched for local support |
| CN110439637A (en) * | 2019-08-30 | 2019-11-12 | 北京全四维动力科技有限公司 | Steam turbine rotary spacing plate and the steam turbine for using it |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU956819A1 (en) * | 1981-02-20 | 1982-09-07 | Производственное Объединение Турбостроения "Ленинградский Металлический Завод" | Two-level rotary diaphragm |
| CN1632291A (en) * | 2004-12-30 | 2005-06-29 | 东方汽轮机厂 | Non-tight high temperature steam turbine rotary spacing plate |
| CN2725534Y (en) * | 2004-07-28 | 2005-09-14 | 上海汽轮机有限公司 | Rotary partition board |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5744906U (en) * | 1980-08-29 | 1982-03-12 | ||
| JPH0617223A (en) * | 1992-06-30 | 1994-01-25 | Aisin Seiki Co Ltd | Diaphragm spring for clutch |
| JPH07139304A (en) * | 1993-11-11 | 1995-05-30 | Mitsubishi Heavy Ind Ltd | Geothermal turbine rotor blade |
-
2010
- 2010-06-01 CN CN201010189129.3A patent/CN102269017B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU956819A1 (en) * | 1981-02-20 | 1982-09-07 | Производственное Объединение Турбостроения "Ленинградский Металлический Завод" | Two-level rotary diaphragm |
| CN2725534Y (en) * | 2004-07-28 | 2005-09-14 | 上海汽轮机有限公司 | Rotary partition board |
| CN1632291A (en) * | 2004-12-30 | 2005-06-29 | 东方汽轮机厂 | Non-tight high temperature steam turbine rotary spacing plate |
Non-Patent Citations (2)
| Title |
|---|
| 基于热喷涂技术对隔板汽蚀的处理;李国华;《热电技术》;20070131(第93期);第18页、第31页 * |
| 李国华.基于热喷涂技术对隔板汽蚀的处理.《热电技术》.2007,(第93期), |
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