CN101407036A - Device for grinding sealing face of valve seat of high temperature and high pressure valve - Google Patents
Device for grinding sealing face of valve seat of high temperature and high pressure valve Download PDFInfo
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- CN101407036A CN101407036A CNA2008102289985A CN200810228998A CN101407036A CN 101407036 A CN101407036 A CN 101407036A CN A2008102289985 A CNA2008102289985 A CN A2008102289985A CN 200810228998 A CN200810228998 A CN 200810228998A CN 101407036 A CN101407036 A CN 101407036A
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- support plate
- grinding block
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Abstract
The invention relates to a sealing face grinding device for a valve seat of a high-temperature and high-pressure valve, which comprises a grinding rod, a main support positioning disk, a mounting seat and a grinding block, and is characterized in that the mounting seat the outer peripheral face of which has taper is connected to the grinding rod through a connecting piece; a plurality of grinding blocks are combined and arranged at the periphery of the mounting seat, the upper end and the lower end of the combined grinding blocks are conical surfaces, the outer peripheral surface of the grinding block is a curved surface and is fixed by an upper compaction disk and a lower compaction disk with matched conical surfaces; and the grinding rod is movably sleeved with the connecting piece which is connected with the main support positioning disk, four orientations of the main support positioning disk are connected with supporting plates through bolts, and the outer edges of the supporting plates are fixed and assembled on a flange mouth of the valve through compaction blocks. The sealing face grinding device has the advantages that a main bearing part can be adjusted, the grinding face of a grinding head can be adjusted according to requirements, the grinding block can be replaced quickly, and the sealing face grinding device can shorten the grinding period remarkably and is suitable for the technical requirement of quick maintenance for a power plant.
Description
Technical field
The invention belongs to the sealing surface of seat lapping device of a kind of high temperature, high pressure valve, particularly a kind of in power plant steam turbine high-temperature, pressure duct the sealing surface of seat of all kinds of valves overhaul abradant sealing surface of seat lapping device.
Background technology
At the turbine system in power plant and all kinds of valves of steam generator system (high temperature particularly, high pressure valve), through after certain life cycle, the sealing surface of seat of valve can produce leakage owing to wearing and tearing and erosion, need overhaul grinding to sealing surface of seat, at present the problem that exists is: (1) since the flange port size of valve from φ about 100 to φ about 1500 so big scopes, overhauling used each diameter of positioning disk that is installed on the flange port of lapping device simultaneously all fixes, therefore, maintenance at valve is ground, the positioning disk that needs a large amount of various diameter model, simultaneously, the maintenance milling time in power plant generally is several days very short times, like this, the job schedule of grinding for each maintenance is brought difficulty, also gives and makes, transport is brought difficulty.(2) being used to overhaul the grinding head of grinding, at the sealing surface of seat of different-diameter model, also is corresponding one by one, can not be according to using the on-the-spot diameter of adjusting of needs.Cause grinding long in time limit, thereby do not adapt to the fast specification requirement of maintenance of power plant.
Summary of the invention
The sealing surface of seat lapping device that the purpose of this invention is to provide a kind of high temperature, high pressure valve, the main support unit that is installed on the flange port can be adjusted, the abradant surface of grinding head can be according to using needs to adjust, and can change fast, significantly shorten and grind the duration, adapt to the power plant specification requirement of maintenance fast.
The objective of the invention is to be achieved through the following technical solutions: it comprises milling bar, the main positioning disk that supports, mount pad, grinding block, it is characterized in that: the mount pad that periphery is worn tapering is connected on the milling bar by connector, on a plurality of grinding blocks, the lower end combination is the conical surface, the grinding block combination is installed in the periphery of mount pad, and by on the band cooperation conical surface, following compression plate is fixed, movable set connector on milling bar, on connector, connect the main positioning disk that supports by bolt, connect support plate by screw on the four direction of main support positioning disk, the outer rim of support plate fixedly is assembled on the valve flanges mouth by compact heap.
Above-mentioned support plate is provided with a plurality of specifications, and many row's fine adjustment screws hole is set on the every support plate.
Above-mentioned grinding block is provided with a plurality of specifications.
Below main support positioning disk, be provided with gathering sill, in the gathering sill of main support positioning disk, connect support plate by screw along four direction.
Advantage of the present invention is: main support unit can be adjusted, and the abradant surface of grinding head can be according to using needs to adjust, and the fast changeable grinding block significantly shortens and grinds the duration, adapts to the power plant specification requirement of maintenance fast.
Description of drawings
Fig. 1 is a structure cutaway view of the present invention.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 installs to connect the schematic diagram (looking up) of adjusting support plate on the positioning disk.
The specific embodiment
See Fig. 1-3, concrete technical scheme of the present invention is as follows: the outer peripheral face of mount pad 13 is made up of six planes of band tapering, mount pad 13 is fixedly connected on milling bar 10, six grinding block 1 combinations are installed in the periphery of mount pad 13, six grinding blocks 1 are on mount pad 13 outer peripheral faces combination back, the lower end is the conical surface, the outer peripheral face of six grinding blocks 1 is curved surface 14 (matching with the sealing profile of valve seat 2), on, following compression plate 12, on 15 and six grinding blocks 1, lower end cone match face is similarly the conical surface, on, following compression plate 12,15 thread connection are on milling bar 10, the grinding head of six grinding blocks, 1 combination is fixed on the milling bar 10, last, following compression plate 12, in 15 the outside assembling, lower compression nut 11,16.Top movable suit connector 6 at milling bar 10, on connector 6, connect the main positioning disk 8 that supports by bolt, below main support positioning disk 8, be provided with gathering sill 17 along four direction, in the gathering sill 17 of main support positioning disk 8, connect support plates 9 by screw 5, support plate 9 is provided with a plurality of specifications, and many row's fine adjustment screws hole 18 is set on the every support plate 9.The outer rim of support plate 9 fixedly is assembled on the flange port 3 of valve by compact heap 4 and fastening bolt.During use, the upper end of milling bar 10 connects buncher 7.
Using method:
Carry out the accurate adjustment that the valve flanges mouth is installed positioning disk and positioning disk diameter:
1, the milling bar 10 with grinder is screwed on installation positioning disk 8; 2, according to valve flanges mouth 3 diameter, see Fig. 3, in the support plate 9 of plurality of specifications, select the support plate that can accurately adjust arbitrarily 9 in the respective diameters scope, tentatively be installed in it in gathering sill 17 that positioning disk 8 is installed with screw; 3, according to the accurate dimension of flange port 14 diameters, the accurate adjustment and fixed support plate 9 on the positioning disk 8 is being installed; 4, the installation positioning disk of combination being adjusted 8 is fixed on the valve flanges mouth 3 by support plate 9, compact heap 4.
Carry out the adjustment of grinding head installation and grinding-in face diameter:
1, mount pad 13 is screwed on the milling bar 10 of grinder.2, according to valve seat 2 sealing surface diameters, by the position of compression plate 12 on last clamp nut 11 Primary Location; 3, according to the size of valve seat 2 sealing surface diameters, select the hexad grinding block 1 of corresponding diameter, and grinding block 1 evenly is assembled on the last compression plate 12 of location, tentatively be fixed and clamped with following compression plate 15; 4, according to the accurate dimension of valve seat 2 sealing surface diameters, accurately adjust upward compression plate 12 by last clamp nut 11, make grinding block 1 make upper and lower minute movement along the conical surface on the mount pad 13, to realize that grinding block diameter and sealing surface of seat diameter coincide, will descend compression plate 15 fixing with lower compression nut 16 again.5, the grinding head of adjusting is contacted gently with sealing surface of seat, start motor 7 then, make the grinding head rotation, progressively increase grinding pressure, reach specification requirement until sealing surface of seat is ground to.
Claims (4)
1, a kind of high temperature, the sealing surface of seat lapping device of high pressure valve, it comprises milling bar, the main positioning disk that supports, mount pad, grinding block, it is characterized in that: the mount pad that periphery is worn tapering is connected on the milling bar by connector, a plurality of grinding block combinations are installed in the periphery of mount pad, on the grinding block of combination, the lower end is the conical surface, the grinding block outer peripheral face is curved surface, and by on the band cooperation conical surface, following compression plate is fixed, movable set connector on milling bar, on connector, connect the main positioning disk that supports, connect support plate by screw on the four direction of main support positioning disk, the outer rim of support plate fixedly is assembled on the valve flanges mouth by compact heap.
2, the sealing surface of seat lapping device of high temperature according to claim 1, high pressure valve, it is characterized in that: above-mentioned support plate is provided with a plurality of specifications, and many row's fine adjustment screws hole is set on the every support plate.
3, the sealing surface of seat lapping device of high temperature according to claim 1, high pressure valve, it is characterized in that: grinding block is provided with a plurality of specifications.
4, the sealing surface of seat lapping device of high temperature according to claim 1, high pressure valve is characterized in that: be provided with the gathering sill along four direction below main support positioning disk, connect support plate by screw in the gathering sill of main support positioning disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102289985A CN101407036B (en) | 2008-11-25 | 2008-11-25 | Device for grinding sealing face of valve seat of high temperature and high pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102289985A CN101407036B (en) | 2008-11-25 | 2008-11-25 | Device for grinding sealing face of valve seat of high temperature and high pressure valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101407036A true CN101407036A (en) | 2009-04-15 |
| CN101407036B CN101407036B (en) | 2012-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102289985A Expired - Fee Related CN101407036B (en) | 2008-11-25 | 2008-11-25 | Device for grinding sealing face of valve seat of high temperature and high pressure valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN101407036B (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966686A (en) * | 2010-10-19 | 2011-02-09 | 上海电气电站设备有限公司 | Grinding tool and grinding method for reheating main valve seat of steam turbine |
| CN102896569A (en) * | 2012-09-26 | 2013-01-30 | 江苏兴亚船用阀门有限公司 | Grinder for machining sealing surface of valve body |
| CN103144025A (en) * | 2013-02-20 | 2013-06-12 | 马斯特模具（昆山）有限公司 | Glue mouth dimension detecting and grinding jig |
| CN103144022A (en) * | 2013-02-04 | 2013-06-12 | 沈阳黎明航空零部件制造有限公司 | Method for grinding sealing face at inner end of graphite sealing seat of aero-engine |
| CN103639871A (en) * | 2013-12-11 | 2014-03-19 | 中国神华能源股份有限公司 | Manual grinding device |
| CN103737478A (en) * | 2013-11-29 | 2014-04-23 | 成都欧浦特控制阀门有限公司 | Valve grinding machine |
| CN104029097A (en) * | 2014-06-04 | 2014-09-10 | 成都来宝石油设备有限公司 | Grinding tool applicable to various valve seats |
| CN104149008A (en) * | 2014-07-30 | 2014-11-19 | 濮阳市鸿宇压力容器有限公司 | Air cannon gun muzzle polisher |
| CN106181746A (en) * | 2016-07-29 | 2016-12-07 | 中船动力有限公司 | The startup valve opening grinding tool of cylinder cover for diesel engine |
| CN106737123A (en) * | 2016-11-25 | 2017-05-31 | 中航动力股份有限公司 | A kind of aero-engine exterior line conical surface seal grinds prosthetic device and method |
| CN106903573A (en) * | 2017-02-27 | 2017-06-30 | 李东利 | A kind of lapping device repaired for steam for thermal recovery valve and its application method |
| CN107097147A (en) * | 2017-04-27 | 2017-08-29 | 上海电力股份有限公司吴泾热电厂 | Digital display lapping device for high temperature and high pressure steam valve sealing face |
| CN108381336A (en) * | 2017-03-24 | 2018-08-10 | 哈尔滨汽轮机厂有限责任公司 | Million nuclear power high pressure valve discs of one kind and valve seat grinding device |
| CN110587403A (en) * | 2019-10-16 | 2019-12-20 | 中船动力研究院有限公司 | Grinding device for precombustion chamber mounting hole of cylinder cover |
| CN112171438A (en) * | 2020-10-23 | 2021-01-05 | 江苏神通阀门股份有限公司 | Method for grinding sealing surface of valve body of helium isolation valve |
| CN112192424A (en) * | 2020-10-13 | 2021-01-08 | 深圳长城开发精密技术有限公司 | Hard disk substrate loading wandering star wheel |
| CN115106886A (en) * | 2022-07-15 | 2022-09-27 | 华能核能技术研究院有限公司 | Positioning device of valve grinder |
-
2008
- 2008-11-25 CN CN2008102289985A patent/CN101407036B/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966686A (en) * | 2010-10-19 | 2011-02-09 | 上海电气电站设备有限公司 | Grinding tool and grinding method for reheating main valve seat of steam turbine |
| CN102896569B (en) * | 2012-09-26 | 2015-03-25 | 江苏兴亚船用阀门有限公司 | Grinder for machining sealing surface of valve body |
| CN102896569A (en) * | 2012-09-26 | 2013-01-30 | 江苏兴亚船用阀门有限公司 | Grinder for machining sealing surface of valve body |
| CN103144022A (en) * | 2013-02-04 | 2013-06-12 | 沈阳黎明航空零部件制造有限公司 | Method for grinding sealing face at inner end of graphite sealing seat of aero-engine |
| CN103144022B (en) * | 2013-02-04 | 2016-01-20 | 沈阳黎明航空零部件制造有限公司 | A kind of method that the inner sealing surface of aero-engine graphite grazing seat is ground |
| CN103144025A (en) * | 2013-02-20 | 2013-06-12 | 马斯特模具（昆山）有限公司 | Glue mouth dimension detecting and grinding jig |
| CN103144025B (en) * | 2013-02-20 | 2017-09-05 | 马斯特模具（昆山）有限公司 | Glue mouthful size detection and jig for grinding |
| CN103737478A (en) * | 2013-11-29 | 2014-04-23 | 成都欧浦特控制阀门有限公司 | Valve grinding machine |
| CN103639871B (en) * | 2013-12-11 | 2016-07-06 | 中国神华能源股份有限公司 | Hand-ground device |
| CN103639871A (en) * | 2013-12-11 | 2014-03-19 | 中国神华能源股份有限公司 | Manual grinding device |
| CN104029097A (en) * | 2014-06-04 | 2014-09-10 | 成都来宝石油设备有限公司 | Grinding tool applicable to various valve seats |
| CN104149008A (en) * | 2014-07-30 | 2014-11-19 | 濮阳市鸿宇压力容器有限公司 | Air cannon gun muzzle polisher |
| CN106181746A (en) * | 2016-07-29 | 2016-12-07 | 中船动力有限公司 | The startup valve opening grinding tool of cylinder cover for diesel engine |
| CN106737123A (en) * | 2016-11-25 | 2017-05-31 | 中航动力股份有限公司 | A kind of aero-engine exterior line conical surface seal grinds prosthetic device and method |
| CN106903573A (en) * | 2017-02-27 | 2017-06-30 | 李东利 | A kind of lapping device repaired for steam for thermal recovery valve and its application method |
| CN108381336A (en) * | 2017-03-24 | 2018-08-10 | 哈尔滨汽轮机厂有限责任公司 | Million nuclear power high pressure valve discs of one kind and valve seat grinding device |
| CN107097147A (en) * | 2017-04-27 | 2017-08-29 | 上海电力股份有限公司吴泾热电厂 | Digital display lapping device for high temperature and high pressure steam valve sealing face |
| CN110587403A (en) * | 2019-10-16 | 2019-12-20 | 中船动力研究院有限公司 | Grinding device for precombustion chamber mounting hole of cylinder cover |
| CN112192424A (en) * | 2020-10-13 | 2021-01-08 | 深圳长城开发精密技术有限公司 | Hard disk substrate loading wandering star wheel |
| CN112192424B (en) * | 2020-10-13 | 2021-10-29 | 深圳长城开发精密技术有限公司 | Hard disk substrate loading wandering star wheel |
| CN112171438A (en) * | 2020-10-23 | 2021-01-05 | 江苏神通阀门股份有限公司 | Method for grinding sealing surface of valve body of helium isolation valve |
| CN115106886A (en) * | 2022-07-15 | 2022-09-27 | 华能核能技术研究院有限公司 | Positioning device of valve grinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101407036B (en) | 2012-06-06 |
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