CN103401326B - The full rotation-speed steam turbine generator of 60Hz - Google Patents
The full rotation-speed steam turbine generator of 60Hz Download PDFInfo
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- CN103401326B CN103401326B CN201310328241.4A CN201310328241A CN103401326B CN 103401326 B CN103401326 B CN 103401326B CN 201310328241 A CN201310328241 A CN 201310328241A CN 103401326 B CN103401326 B CN 103401326B
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Abstract
The invention discloses the full rotation-speed steam turbine generator of a kind of 60Hz, it comprises stator (1), rotor (2), bearing (4), air cooler (5) and underframe (6), stator (2) two ends are provided with end cap (3), one end of rotor (2) is passed the center of stator (1) and end cap (3) and is fixed on underframe (6) by the bearing (4) being positioned at a side end cap (3) outside, and stator (1) top is provided with air cooler (5).The present invention adopts high-strength material to make, and be provided with multiple ventilation slot, good mechanical property, ventilation and heat are fast, rule and maintenance are conveniently, the loss of generator can be reduced, reduce the cost of overhaul, meet the high-revolving requirement of mechanical strength of full rotation-speed steam turbine generator, reasonable in design, can provide technical support for opening up wide 60Hz turbo generator market abroad.
Description
Technical field
The present invention relates to the full rotation-speed steam turbine generator of a kind of 60Hz.
Background technology
Become turbo generator with the generator of Steam Turbine Driven, turbo generator is the generator supporting with steam turbine.Its rotating speed is generally 3000 revs/min (frequency is 50 hertz) or 3600 revs/min (frequency is 60 hertz).High speed turbine generator is in order to reduce the mechanical stress and reduction windmill consumption that produce because of centrifugal force, and root diameter is generally less, length comparatively large (i.e. elongate rotor).This elongate rotor makes the rotor size of large high-speed turbo generator be restricted.After 20 century 70s, the heap(ed) capacity of turbo generator reaches 130 ~ 1,500,000 kilowatts.60Hz turbo generator is the country of 60Hz mainly for mains frequency, and it is less to send out the producer of machine for China's domestic production 60Hz vapour, and main cause is that technology is immature, and production equipment can not meet process requirements etc.For its full rotating speed motor, under the prerequisite meeting electromagnetic performance, also need to meet mechanical requirements, full rotating speed vapour sends out machine rotating speed up to 3600r/min, all very high to the requirement of revolving part material, process equipment and each parts.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, one is provided to be provided with multiple ventilation slot, good mechanical property, ventilation and heat are fast, rule and maintenance are conveniently, the loss of generator can be reduced, reduce the cost of overhaul, meet the high-revolving requirement of mechanical strength of full rotation-speed steam turbine generator, the full rotation-speed steam turbine generator of 60Hz of reasonable in design.
The object of the invention is to be achieved through the following technical solutions: the full rotation-speed steam turbine generator of 60Hz, it comprises stator, rotor, bearing, air cooler and underframe, stator two ends are provided with end cap, one end of rotor is passed the center of stator and end cap and is fixed on underframe by the bearing being positioned at a side end cap outside, is provided with air cooler above stator.
Described stator comprises support, iron core and stator coil, and iron core adopts the fanning strip of cold rolling non-orientation silicon steel sheet punching to be overrided to form, and is divided at least two grades vertically, is provided with " work " font ventilation steel channel and supports the Radial ventilation duct formed between every two grades of iron cores; Support is square, and length extends core end plate place, two ends, and longitudinally form air inlet/outlet district by four pieces of wallboards, be coated with cover plate outside wallboard, the both sides of wallboard are welded with joint hinge; Stator coil adopts basket-type half coil, and is built up by dual-fiberglass wrapped flat copper wire, and stator coil end forms an entirety by triangular supports and interlayer filler strip with washing the colligation of glass rope; Stator coil winding is on iron core, and iron core is fixed on the support bar of support by the dovetail slot circumference at yoke back, and the method that iron core adopts trim ring to weld with support wall tightens up vertically.
Described rotor body is milled with radial line embedding groove, and is provided with 4 ventilation slots, rotor body two ends hot jacket has collector ring, and two ends of rotor is equipped with the centrifugal fan of blade hypsokinesis.
Described end cap is the square structure adopting Plate Welding, and end cap is provided with the lead-out wire fairlead of inspection hole, fire extinguishing tube, gas sealing mechanism and stator.
Described bearing adopts the sliding bearing of pressure forced oil-circulation, bearing comprises bearing pedestal, the bearing cap at bearing two ends and the sphere bearing shell of energy automatic aligning, bearing pedestal is made of cast iron, bearing cap is equipped with oil baffle, the vent plug of balanced oil pocket internal pressure is equipped with at bearing pedestal top, below bearing pedestal and flange be all lined with insulating material.
Described air cooler is positioned at the top of support and end cap and by bolt, conjunction is fixed, and cold wind is inputted stator coil end by end cap by air cooler, and end cap and support are all provided with the thermometer measured and import and export wind-warm syndrome.
Described stator coil and iron core are equipped with resistance temperature measurement element.
The invention has the beneficial effects as follows: iron core adopts the fanning strip of cold rolling non-orientation silicon steel sheet punching to be overrided to form, rotating shaft selects the overall forging of the superior alloy steel of high magnetic conduction to form, and be provided with multiple ventilation slot, good mechanical property, ventilation and heat are fast, rule and maintenance are conveniently, the loss of generator can be reduced, reduce the cost of overhaul, meet the high-revolving requirement of mechanical strength of full rotation-speed steam turbine generator, reasonable in design, can provide technical support for opening up wide 60Hz turbo generator market abroad.
Accompanying drawing explanation
Fig. 1 is turbo generator structural representation of the present invention;
In figure, 1-stator, 2-rotor, 3-end cap, 4-bearing, 5-air cooler, 6-underframe.
Embodiment
Further illustrate technical scheme of the present invention below in conjunction with accompanying drawing, but the content that the present invention protects is not limited to the following stated.
As shown in Figure 1, the full rotation-speed steam turbine generator of 60Hz, it comprises stator 1, rotor 2, bearing 4, air cooler 5 and underframe 6, stator 2 two ends are provided with end cap 3, one end of rotor 2 is passed the center of stator 1 and end cap 3 and is fixed on underframe 6 by the bearing 4 being positioned at side end cap 3 outside, is provided with air cooler 5 above stator 1.
Described stator 1 comprises support, iron core and stator coil, iron core adopts the fanning strip of cold rolling non-orientation silicon steel sheet punching to be overrided to form, fanning strip two sides is coated with all insulation paint film, be divided at least two grades vertically, be provided with " work " font ventilation steel channel between every two grades of iron cores and support the Radial ventilation duct formed; Support is square, is convenient to install air cooler 5, and adopt Plate Welding to form, length extends just rule and the maintenance of two ends core end plate prescription, and longitudinally form air inlet/outlet district by four pieces of wallboards, be coated with cover plate outside wallboard, the both sides of wallboard are welded with joint hinge; Stator coil adopts basket-type half coil, and is built up by dual-fiberglass wrapped flat copper wire, and stator coil end forms an entirety by triangular supports and interlayer filler strip with washing the colligation of glass rope; Stator coil winding is on iron core, and iron core is fixed on the support bar of support by the dovetail slot circumference at yoke back, and the method that iron core adopts trim ring to weld with support wall tightens up vertically.
Generator is individual layer fast mounting structure, and the outlet copper bar of stator 1 is encouraged end end cap both sides from generator and drawn, each three of every side, and at outlet copper bar surrounding cover with armored cassette, to guarantee operation maintenance safety.
Described rotor 2 comprises rotor forging, rotor coil, rotor slot wedge, collector ring, fan, retaining ring and centering ring, rotating shaft selects the overall forging of the superior alloy steel of high magnetic conduction to form, rotor 2 body mills out radial line embedding groove, and process 4 ventilation slots to strengthen cooling effect, the mechanical requirements to rotor body under 3600r/min rated speed can be met.Rotor coil adopts copper strap wire outsourcing insulation to be made.Each circle rotor coil pad epoxy resin bonded fiber, and flat bag glass tape.Insulation and the end winding support spacer block cushion block jam-pack that all adopts epoxy phenol aldehyde glass cloth laminated board materials processing to become under retaining ring, then employing bake pressure technique forms a solid entirety.Rotor slot wedge adopts duralumin, hard alumin ium alloy, and two ends adopt forge copper slot wedge.For meeting high-revolving requirement, retaining ring selects the nonmagnetic alloy steel forgings deformation of high strength to form, and attacks the appropriate ventilation hole of brill in respective rotor winding space place, to strengthen the cooling of rotor coil ends.The centrifugal fan of blade hypsokinesis is equipped with at rotor 2 two ends, and fan adopts high-quality steel to be welded, and for the cooling of generator provides circulation power, the power of fan makes cold wind enter in iron core and coil to cool.Collector ring selects forged steel material, and hot jacket is placed in rotor 2 body two ends, is the main diversion component to generator amature input field power supply.
Described end cap 3 is the square structure adopting Plate Welding, and end cap 3 is provided with the lead-out wire fairlead of inspection hole, fire extinguishing tube, gas sealing mechanism and stator 1.
Described bearing 4 adopts the sliding bearing of pressure forced oil-circulation, bearing 4 comprises bearing pedestal, the bearing cap at bearing two ends and the sphere bearing shell of energy automatic aligning, bearing pedestal is made of cast iron, bearing cap is equipped with oil baffle, the vent plug of balanced oil pocket internal pressure is equipped with at bearing pedestal top, below bearing pedestal and flange be all lined with insulating material, can prevent shaft current from passing through.
Described air cooler 5 is positioned at the top of support and end cap 3 and by bolt, conjunction is fixed, and cold wind is inputted stator coil end by end cap 3 by air cooler, and end cap 3 and support are all provided with the thermometer measured and import and export wind-warm syndrome.
Described stator coil and iron core are equipped with resistance temperature measurement element.
Claims (5)
1.60Hz full rotation-speed steam turbine generator, it is characterized in that: it comprises stator (1), rotor (2), bearing (4), air cooler (5) and underframe (6), stator (1) two ends are provided with end cap (3), one end of rotor (2) is passed the center of stator (1) and end cap (3) and is fixed on underframe (6) by the bearing (4) being positioned at a side end cap (3) outside, and stator (1) top is provided with air cooler (5);
Described stator (1) comprises support, iron core and stator coil, iron core adopts the fanning strip of cold rolling non-orientation silicon steel sheet punching to be overrided to form, be divided at least two grades vertically, be provided with " work " font ventilation steel channel between every two grades of iron cores and support the Radial ventilation duct formed; Support is square, and length extends core end plate place, two ends, and longitudinally form air inlet/outlet district by four pieces of wallboards, be coated with cover plate outside wallboard, the both sides of wallboard are welded with joint hinge; Stator coil adopts basket-type half coil, and is built up by dual-fiberglass wrapped flat copper wire, and stator coil end forms an entirety by triangular supports and interlayer filler strip with washing the colligation of glass rope; Stator coil winding is on iron core, and iron core is fixed on the support bar of support by the dovetail slot circumference at yoke back, and the method that iron core adopts trim ring to weld with support wall tightens up vertically;
Generator is individual layer fast mounting structure, and the outlet copper bar of stator (1) is encouraged end end cap both sides from generator and drawn, each three of every side, and at outlet copper bar surrounding cover with armored cassette, to guarantee operation maintenance safety;
Rotor (2) comprises rotor forging, rotor coil, rotor slot wedge, collector ring, fan, retaining ring and centering ring, rotating shaft selects the overall forging of the steel alloy of high magnetic conduction to form, rotor (2) body mills out radial line embedding groove, and process 4 ventilation slots to strengthen cooling effect, the mechanical requirements to rotor body under 3600r/min rated speed can be met; Rotor coil adopts copper strap wire outsourcing insulation to be made, each circle rotor coil pad epoxy resin bonded fiber, and flat bag glass tape; Insulation and the end winding support spacer block cushion block jam-pack that all adopts epoxy phenol aldehyde glass cloth laminated board materials processing to become under retaining ring, then employing bake pressure technique forms a solid entirety; Rotor slot wedge adopts duralumin, hard alumin ium alloy, and two ends adopt forge copper slot wedge; For meeting high-revolving requirement, retaining ring selects the nonmagnetic alloy steel forgings deformation of high strength to form, and attacks the appropriate ventilation hole of brill in respective rotor winding space place, to strengthen the cooling of rotor coil ends; The centrifugal fan of blade hypsokinesis is equipped with at rotor (2) two ends, and fan adopts high-quality steel to be welded, and for the cooling of generator provides circulation power, the power of fan makes cold wind enter in iron core and coil to cool; Collector ring selects forged steel material, and hot jacket is placed in rotor (2) body two ends, is the main diversion component to generator amature input field power supply.
2. the full rotation-speed steam turbine generator of 60Hz according to claim 1, it is characterized in that: described end cap (3) is the square structure adopting Plate Welding, and end cap (3) is provided with the lead-out wire fairlead of inspection hole, fire extinguishing tube, gas sealing mechanism and stator (1).
3. the full rotation-speed steam turbine generator of 60Hz according to claim 1, it is characterized in that: described bearing (4) adopts the sliding bearing of pressure forced oil-circulation, bearing (4) comprises bearing pedestal, the bearing cap at bearing two ends and the sphere bearing shell of energy automatic aligning, bearing pedestal is made of cast iron, bearing cap is equipped with oil baffle, the vent plug of balanced oil pocket internal pressure is equipped with at bearing pedestal top, below bearing pedestal and flange be all lined with insulating material, can prevent shaft current from passing through.
4. the full rotation-speed steam turbine generator of 60Hz according to claim 1, it is characterized in that: described air cooler (5) is positioned at the top of support and end cap (3) and by bolt, conjunction is fixed, cold wind by end cap (3) input stator coil end, end cap (3) and support is all provided with the thermometer measured and import and export wind-warm syndrome by air cooler.
5. the full rotation-speed steam turbine generator of 60Hz according to claim 1, is characterized in that: described stator coil and iron core are equipped with resistance temperature measurement element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310328241.4A CN103401326B (en) | 2013-07-31 | 2013-07-31 | The full rotation-speed steam turbine generator of 60Hz |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310328241.4A CN103401326B (en) | 2013-07-31 | 2013-07-31 | The full rotation-speed steam turbine generator of 60Hz |
Publications (2)
| Publication Number | Publication Date |
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| CN103401326A CN103401326A (en) | 2013-11-20 |
| CN103401326B true CN103401326B (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310328241.4A Expired - Fee Related CN103401326B (en) | 2013-07-31 | 2013-07-31 | The full rotation-speed steam turbine generator of 60Hz |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235194B (en) * | 2014-09-11 | 2017-01-25 | 兖州煤业股份有限公司 | Steam turbine generator unit |
| CN109067091A (en) * | 2018-08-02 | 2018-12-21 | 海泉风雷新能源发电股份有限公司 | A kind of Turbo-generator Set |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2681452Y (en) * | 2004-03-09 | 2005-02-23 | 四川东风电机厂有限公司 | Brushless excitation for steam turbo generator |
| CN1877969A (en) * | 2006-07-03 | 2006-12-13 | 四川东风电机厂有限公司 | Gas turbine generator |
| CN101860119A (en) * | 2010-07-22 | 2010-10-13 | 哈尔滨理工大学 | Large air-cooled turbo-generator with circumferential mixed ventilation cooling structure |
| CN203352303U (en) * | 2013-07-31 | 2013-12-18 | 东方电气集团东风电机有限公司 | 60Hz full-rotation speed turbine generator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06261499A (en) * | 1993-03-08 | 1994-09-16 | Mitsubishi Electric Corp | Electric rotating machine |
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2013
- 2013-07-31 CN CN201310328241.4A patent/CN103401326B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2681452Y (en) * | 2004-03-09 | 2005-02-23 | 四川东风电机厂有限公司 | Brushless excitation for steam turbo generator |
| CN1877969A (en) * | 2006-07-03 | 2006-12-13 | 四川东风电机厂有限公司 | Gas turbine generator |
| CN101860119A (en) * | 2010-07-22 | 2010-10-13 | 哈尔滨理工大学 | Large air-cooled turbo-generator with circumferential mixed ventilation cooling structure |
| CN203352303U (en) * | 2013-07-31 | 2013-12-18 | 东方电气集团东风电机有限公司 | 60Hz full-rotation speed turbine generator |
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| CN103401326A (en) | 2013-11-20 |
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Granted publication date: 20150923 Termination date: 20190731 |