Steam seal arc sheet forming device for inserted tooth type steam seal ring and operation method
A molding device and technology of steam seal ring, which is applied in the field of steam turbine steam seal, can solve problems such as incompetence of equipment and methods, and achieve the effects of convenient manufacture and use, improved quality, and shortened working hours
Inactive Publication Date: 2017-02-22
DONGFANG TURBINE CO LTD
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- Application Information
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Problems solved by technology
The above processing work is difficult to do with conventional equipment and methods
Method used
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[0023] Such as Figure 1 to Figure 5 As shown, a steam seal arc forming device of an inset type steam seal ring includes a knurled part and a rolled bending part; the knurled part includes a driving shaft 4, a knurled driving wheel 8, a knurled shaft 21, a Flower driven wheel 22, screw shaft 20, platen 6, knurled baffle plate 7, positioning plate 9, knurled adjustment sleeve 2 and round nut 3; bearing is installed on the driving shaft 4 at housing 11 place, and this bearing There is a baffle 10 for holes on the inner side of the bearing, and the knurled adjusting sleeve 2, the knurled driving wheel 8, and the round nut 3 are installed on the driving shaft 4 in sequence on the outer side; the bearing cover is also installed on the outer side of the bearing. , seal the bearing. The knurled driven wheel 22 is installed on the knurled shaft 21 above the knurled driving wheel 8; the knurled shaft 21 is connected to the screw shaft 20; Between the driving wheels 22; the knurled ba...
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The invention discloses a steam seal arc sheet forming device for an inserted tooth type steam seal ring and an operation method. The steam seal arc sheet forming device comprises a knurling portion and a roll-bending portion, wherein a knurling adjusting sleeve, a knurling driving wheel and a round nut of the knurling portion are sequentially installed on a driving shaft, a knurling driven wheel is installed on a knurling shaft above the knurling driving wheel, and the knurling shaft is connected with a screw shaft; a platen is installed between the knurling driving wheel and the knurling driven wheel, a knurling baffle is installed on the platen, a positioning plate is installed beside the knurling driving wheel, and the positioning plate and the knurling baffle are located on a same horizontal plane, so that a steam seal arc sheet channel is formed between the positioning plate and the knurling baffle; the roll-bending portion comprises a roll-bending driven wheel and two roll-bending driving wheels, the roll-bending driven wheel is located above a center connection line of the two roll-bending driving wheels, and the roll-bending driven wheel is installed on a driven shaft which is connected with a position adjusting device. When the steam seal arc sheet forming device for the inserted tooth type steam seal ring and the operation method are used for forming of steam seal arc sheets, the working time is shortened, and the quality is improved.
Description
technical field [0001] The invention relates to a steam seal of a steam turbine, in particular to a steam seal arc forming device and an operation method of an insert-type steam seal ring. Background technique [0002] In order to improve the efficiency of the unit and reduce the leakage of steam and the leakage of air, the steam turbine is equipped with a steam seal device. The steam seal ring is one of the key components in the steam seal device. Now most of the steam seal rings adopt the tooth structure, and there are different numbers of steam seal arcs inlaid in each tooth groove of the body. The steam seal arc requires the whole circle to be caulked and fixed in each tooth groove, and the steam seal arc blank is the steel strip as a whole coil, and measures need to be taken to make its curvature radius equal to the curvature of the seal ring body, and the full length knurling , 22 patterns are arranged every 25mm, and the inclined directions of the patterns on both si...
Claims
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IPC IPC(8): B23P23/04B23P15/00
CPCB23P23/04B23P15/00
Inventor 廖静许庆国朱永祥谢敏刘家顺李松林孟秋建崔志国曾强张英俊
Owner DONGFANG TURBINE CO LTD