CN101841283B - Whole-sealing liquid resistance starter - Google Patents
Whole-sealing liquid resistance starter Download PDFInfo
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- CN101841283B CN101841283B CN200910266298XA CN200910266298A CN101841283B CN 101841283 B CN101841283 B CN 101841283B CN 200910266298X A CN200910266298X A CN 200910266298XA CN 200910266298 A CN200910266298 A CN 200910266298A CN 101841283 B CN101841283 B CN 101841283B
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Abstract
The invention discloses a whole-sealing liquid resistance starter, which is characterized in that a partition insulator evenly divides the bottom of an electrolyte box into three separated flumes, and a stationary electrode, a moving electrode and a lifter are arranged in the electrolyte; the moving electrode is hung on the lifter which is fixed on the lower tip of an insulating rod; the insulating rod is assembled with the lower tip of a screw rod by a connecting bush; the lifter and a motor are installed together; the stationary electrode is installed on the bottom of the electrolyte box and is connected with a copper bar at the lower end of a contactor; a contactor enclosure and a control box are installed on the external wall of the right side of the box body; the left lower side of the box body is provided with three ball valves; a connecting pipe is respectively connected and runs through three separated flumes; a circulating pump is installed on a pump base on rear side wall; an internal circulating pipe is respectively provided with three liquid delivery pipes; the circulating pump, an external circulating assembly and the liquid distribution delivery pipe of the internal circulating pipe form a self-circulation cooling system. A seal ring is arranged between the electrolyte box and a box cover and between a pressure release valve and the electrolyte box cover and is arranged on the electrolyte box cover through which an insulating rod and an electrode stabilizing plate pass.
Description
Technical field
The present invention relates to a kind of big-and-middle-sized wire wound asynchronous motor starter, specifically a kind of whole-sealing liquid resistance starter.
Background technology
At present, in order to improve the starting performance of big-and-middle-sized wire wound asynchronous motor, popular way is to adopt liquid resistance starter; It is through in the rotor loop, sealing in liquid resistance, automatic electrodeless adjustment resistance value, and making it is zero from large to small at last, realizes that the motor step-down do not have the ground of impact smooth starting.This product has overcome many deficiencies such as traditional starter starting current is big, operation is inconvenient, maintenance is frequent, can not start continuously, mechanical shock is big, has thoroughly solved the difficult problem of large and middle size motor starting.But present liquid resistance starter remains in following deficiency: when 1, starting, the electrolyte temperature rise is big, relies on natural heat dissipation to be difficult to continuous several times starting at short notice; 2, the sealing of electrolyte case is not enough; Because electrolyte is heated in starting process, moisture content is evaporation therefore, the volatilization of moisture content under the normal condition in addition; Cause liquid resistance starter will repeat in use for some time to add the water dosing, cause that overhaul of the equipments is frequent, availability descends.Particularly in the area arid short of rain of 200 millimeters of annual precipitation less thaies, the effective recycling of moisture content is even more important.
Summary of the invention
The objective of the invention is deficiency, a kind of rapid heat dissipation, electrolyte case good airproof performance, long service life are provided, can start and prevent the new equipment of electrolyte volatilization within a certain period of time continuously to the existing above-mentioned existence of liquid resistance starter; Particularly a kind ofly be adapted at long playing whole-sealing liquid resistance starter in the climatic environment arid short of rain of annual precipitation less than below 200 millimeters.
Technical scheme of the present invention is: a kind of whole-sealing liquid resistance starter; Comprise casing, ball valve, fixed electrode, moving electrode, electrolyte case, electrolyte, connection row, crane, insulating bar, black box, adapter sleeve, worm and gear lift, motor, contactor install bin, contactor, circulating pump, threeway, tube connector, compensator, circulation tube, control cabinet, electrolyte case lid, relief valve, it is characterized in that: with insulating barrier electrolyte case bottom is divided into three in the electrolyte case 5 and separates liquid bath; Fixed electrode 3, moving electrode 4, crane 8 are arranged in electrolyte 6; Moving electrode 4 is suspended on the crane 8; Crane 8 is fixed on insulating bar 9 lower ends; After insulating bar 9 passes first black box 10 on the electrolyte case lid 32, be fitted together with adapter sleeve 11 and the screw mandrel lower end that is contained on the worm and gear lift 12; Worm and gear lift 12 is installed together with motor 13, covers on the protective cover 42 on worm and gear lift 12 and the motor 13, is installed on the top cover of liquid resistance starter casing 2; Fixed electrode 3 is fixed on electrolyte case 5 bottoms, and second bronze medal or aluminium that fixed electrode is drawn contactor 16 lower ends in back and the contactor install bin 15 from second black box 14 on the electrolyte case lid are connected arranges 18 connections; With bolt contactor install bin 15 is installed on liquid resistance starter casing 2 outer right wall, has mounted control cabinet 29, secondary controller spare is installed in the control cabinet 29 in contactor install bin 15 fronts; When power of motor is 2000KW and when above, contactor 16 is designed to circuit breaker; The tube connector that liquid resistance starter casing 2 left downsides are provided with on three first ball valves, 1, the first ball valve 1 is connected perforation with electrolyte case 5 three interior separation liquid baths respectively; Liquid resistance starter casing 2 rear walls are provided with the circulation pump seat; Circulating pump 19 is contained on the pump seat, forms the outer loop assembly by first threeway 20, first connecting tube 21, second ball valve 22, first compensator 23, second compensator 24, second threeway 25, second connecting tube 26, the 3rd ball valve 27; Second compensator 24 links together with the circulation tube 28 of electrolyte case 5, is respectively equipped with three liquid delivery tubes on the circulation tube 28, respectively liquid is sent into electrolyte case 5 interior three bottoms of separating liquid bath, and the feed tube lower end is provided with elbow towards fixed electrode; The liquid delivery tube of circulating pump, outer loop assembly and circulation tube 28 forms self-circulation cooling system; Circulating pump is connected with flange with the electrolyte case through the entrance and exit of outer circulation assembly, and the inlet of outer circulation assembly is positioned at the top of moving electrode 3 limes superiors positions; Electrolyte case lid 32 is provided with relief valve, temperature measuring equipment, liquid level detection device; Between electrolyte case and the electrolyte case lid, between relief valve and the electrolyte case lid, insulating bar passes electrolyte case lid place, fixed electrode and draws copper or aluminium and be connected row and pass electrolyte case lid place and be equipped with black box.
The invention has the beneficial effects as follows: a kind of whole-sealing liquid resistance starter; On whole-sealing liquid resistance starter, establish unique self-circulation cooling system; After circulating pump starts, makes circulatory system work, because convection action makes, the electrolyte heat of fixed electrode service area obtains the circulation cooling as early as possible; And make full use of the thermal capacity of whole electrolyte case; What a large amount of heats that produce when Control work district electrolyte is because of work well caused is rapidly heated, and the heat that produces in the electrolyte case is distributed rapidly through the circulatory system at short notice, thereby starter can continuous several times be started within a certain period of time.The present invention has avoided the too fast evaporation of liquid in the electrolyte case well owing to taked perfect seal approach, has prolonged the service time and the useful life of starter, and is safe and reliable.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further
Fig. 1 is structural representation of the present invention;
Fig. 2 is the B-B cutaway view of Fig. 1;
Fig. 3 is the C-C cutaway view of Fig. 1;
Fig. 4 is that the D of Fig. 1 is to black box structure for amplifying sketch map;
Fig. 5 is that the E of Fig. 1 is to black box structure for amplifying sketch map;
Fig. 6 is that the F of Fig. 2 is to electrolyte case and electrolyte case lid structure for amplifying sketch map;
Fig. 7 is that the relief valve G-G of Fig. 3 analyses and observe the structure for amplifying sketch map;
Fig. 8 is circuit theory diagrams of the present invention.
1. first ball valves in the drawings, 2. casing, 3. fixed electrode, 4. moving electrode, 5. electrolyte case, 6. electrolyte, 7. first bronze medal or aluminium connect row; 8. crane, 9. insulating bar, 10. first black box, 11. adapter sleeves, 12. worm and gear lifts, 13 motors, 14. second black boies; 15. the contactor install bin, 16. contactors, 17. main motors, 18. second bronze medals or aluminium connect row, 19. circulating pumps, 20. first threeways; 21. first connecting tube, 22. second ball valves, 23. first compensators, 24. second compensators, 25. second threeways, 26. second connecting tubes; 27. the 3rd ball valve, 28. circulation tube, 29. control cabinets, 30. first loam cakes, 31. first clamping pads, 32. electrolyte case lids; 33. first sealing ring, 34. first trap, 35. stainless steel bolts, 36. second loam cakes, 37. second clamping pads, 38. second sealing rings; 39. second traps, 40. relief valves, 41. the 3rd sealing rings, 42. protective covers, 43. bolts, 44. sealing gaskets.
Embodiment
In the embodiment of Fig. 1, Fig. 2, Fig. 3; The electrolyte casing 5 that adopts insulating material to make; Be arranged in the liquid resistance starter casing 2; Separate liquid bath with insulating barrier with being divided into three in the electrolyte case 5, fixed electrode 3, moving electrode 4, crane 8 are arranged in the electrolyte 6 of electrolyte casing 5, and the lower end of moving electrode 4, fixed electrode 3 lays respectively at three and separates in the liquid bath.Moving electrode 4 hangs on the crane made from insulating material 8; Crane 8 is fixed on the insulating bar 9; After insulating bar 9 passes first black box 10 on the electrolyte case lid 32; Be fitted together with adapter sleeve 11 and the screw mandrel lower end that is contained on the worm and gear lift 12, worm and gear lift 12 is installed together with motor 13; Cover on the protective cover 42 on worm and gear lift 12 and the motor 13, be installed on liquid resistance starter case 2 top covers.The worm and gear lift is the tractor of moving electrode, himself has damping, guiding, anti-rotation function.
The left side of liquid resistance starter casing 2 is provided with three ball valves in the present invention, and the tube connector on first ball valve 1 is connected perforation with electrolyte case 5 three interior separation liquid baths respectively, when maintenance, emits the electrolyte of separating in the liquid bath 6 respectively with first ball valve 1; Liquid resistance starter casing 2 rear walls are provided with the circulation pump seat; Circulating pump 19 is contained on the pump seat, forms the outer loop assembly by first threeway 20, first connecting tube 21, second ball valve 22, first compensator 23, second compensator 24, second threeway 25, second connecting tube 26, the 3rd ball valve 27; Second compensator 24 links together with the circulation tube 28 of electrolyte case 5, is respectively equipped with three liquid delivery tubes on the circulation tube 28, respectively liquid is sent into electrolyte case 5 interior three bottoms of separating liquid bath, and the feed tube lower end is provided with elbow towards fixed electrode.The liquid delivery tube of circulating pump, outer loop assembly and circulation tube 28 forms self-circulation cooling system; Circulating pump is connected with flange with the electrolyte case through the entrance and exit of outer circulation assembly, and the inlet of outer circulation assembly is positioned at the top of moving electrode 3 limes superiors positions.
In the embodiment of Fig. 4, Fig. 5, Fig. 6, Fig. 7, first black box 10 is made up of first trap 34, first sealing ring 33, first clamping pad 31, first loam cake 30; First black box 10 is sleeved on the insulating bar 9; Trap first with stainless steel bolt 35 and 34 to be fastened on the electrolyte case lid 32; First traps is provided with first clamping pad 31 above first sealing ring, 33, the first sealing rings 33 being housed in the 34 end face grooves, tapped first loam cake 30 be with externally threaded first to trap and 34 tighten together; Be sleeved on first sealing ring 33 on the insulating bar 9, guarantee that the steam in the electrolyte case 5 did not leak when insulating bar 9 went up and down.
Second black box 14 is made up of second trap 39, second sealing ring 38, second clamping pad 37, second loam cake 36.Second black box 14 is sleeved on the fixed plate 3, and trapping second with stainless steel bolt 35 39 is fastened on the electrolyte case lid 32.Second traps is equipped with second sealing ring, 38, the second sealing rings 38 in the groove of end face on 39 and is sleeved in fixed plate 3 rows of drawing, and fixed electrode 3 fairleads are sealed, and guarantees that the steam in the electrolyte case 5 do not leak.Be provided with second clamping pad 37 above second sealing ring 38, tapped second loam cake 36 be with externally threaded second to trap and 39 tighten together.
Between the edge, top of electrolyte case 5 and electrolyte case lid 32, be provided with sealing gasket 44, the top that electrolyte case lid 32 and sealing gasket 44 is fixed on electrolyte case 5 with bolt 43 is along on the plane.
The 3rd sealing ring 41 is sleeved on the relief valve 40 forms the relief valve assembly, and the relief valve assembly is installed on the electrolyte case lid 32 in the relief hole, is used for pressure release and hermetic electrolyte liquid case.When electrolyte was heated and causes that gas pressure increases to certain value in the electrolyte case 5 when starter is worked, relief valve 40 was backed down, and electrolyte case internal pressure is able to timely release, thereby has effectively avoided contingent accident.
In the embodiment of Fig. 8, be connected with the end of contactor KM behind the liquid resistance RS one end three-phase short circuit, and then insert the rotor loop of main motor M, the other end three-phase short circuit of contactor KM.When the starting of main motor M, contactor KM breaks off, liquid resistance RS under the dragging of drive system, make seal in main motor M rotor loop resistance from large to small, thereby realize the level and smooth soft start of step-down of main motor M.Starting finishes, and contactor KM adhesive forms the short circuit asterism, and liquid resistance RS is excised by bypass.
Owing to designed unique self-circulation system; When electric motor starting finished, circulating pump started simultaneously, and the circulatory system starts; The heat of service area in the electrolyte case is distributed rapidly through the circulatory system at short notice, starter can continuous several times be started within a certain period of time.The present invention is owing to taked perfect seal approach; Between electrolyte case and the electrolyte case lid, between relief valve and the electrolyte case lid, insulating bar passes electrolyte case lid place, fixed plate and draws row and pass electrolyte case lid place and be provided with sealing; Thereby volatilization naturally and the moisture content that caused by thermal evaporation in when work that can make electrolyte run off and reduce as far as possible; Solved the too fast volatilization problem of liquid in the electrolyte case well; Effectively prolong the service time of liquid resistance starter, solved the too fast problem of electrolyte volatilization; Simultaneously, the electrolyte case lid is provided with relief valve, has solved the problem of the excessive timely pressure release of electrolyte case internal pressure, has effectively avoided contingent accident.Safe in utilization, reliable.
Claims (3)
1. whole-sealing liquid resistance starter; Comprise casing, ball valve, fixed electrode, moving electrode, electrolyte case, electrolyte, connection row, crane, insulating bar, black box, adapter sleeve, worm and gear lift, motor, contactor install bin, contactor, circulating pump, threeway, tube connector, compensator, circulation tube, control cabinet, electrolyte case lid, relief valve, it is characterized in that: with insulating barrier electrolyte case bottom is divided into three in the electrolyte case (5) and separates liquid bath; Fixed electrode (3), moving electrode (4), crane (8) are arranged in electrolyte (6); Moving electrode (4) is suspended on the crane (8); Crane (8) is fixed on insulating bar (9) lower end; After insulating bar (9) passes first black box (10) on the electrolyte case lid (32), be fitted together with adapter sleeve (11) and the screw mandrel lower end that is contained on the worm and gear lift (12); Worm and gear lift (12) and motor (13) are installed together, and cover on the protective cover (42) on worm and gear lift (12) and the motor (13), are installed on the top cover of liquid resistance starter casing (2); Fixed electrode (3) is fixed on electrolyte case (5) bottom, and second bronze medal or aluminium that fixed electrode (3) is drawn contactor (16) lower end in back and the contactor install bin (15) from second black box (14) on the electrolyte case lid (32) are connected row (18) connection; With bolt contactor install bin (15) is installed on liquid resistance starter casing (2) outer right wall, has mounted control cabinet (29), secondary controller spare is installed in the control cabinet (29) in contactor install bin (15) front; When power of motor is 2000KW and when above, contactor (16) is designed to circuit breaker; The left downside of liquid resistance starter casing (2) is provided with three first ball valves (1), and the tube connector on first ball valve (1) is connected perforation with three interior separation liquid baths of electrolyte case (5) respectively; Liquid resistance starter casing (2) rear wall is provided with the circulation pump seat; Circulating pump (19) is contained on the pump seat, forms the outer loop assembly by first threeway (20), first connecting tube (21), second ball valve (22), first compensator (23), second compensator (24), second threeway (25), second connecting tube (26), the 3rd ball valve (27); Second compensator (24) links together with the circulation tube (28) of electrolyte case (5); Be respectively equipped with three liquid delivery tubes on the circulation tube (28); Respectively liquid is sent into interior three bottoms of separating liquid bath of electrolyte case (5), the feed tube lower end is provided with elbow towards fixed electrode; The liquid delivery tube of circulating pump, outer loop assembly and circulation tube (28) forms self-circulation cooling system; Circulating pump (19) is connected with flange with electrolyte case (5) through the entrance and exit of outer circulation assembly, and the inlet of outer circulation assembly is positioned at the top of moving electrode (4) limes superiors position; Electrolyte case lid (32) is provided with relief valve, temperature measuring equipment, liquid level detection device; Between electrolyte case and the electrolyte case lid, between relief valve and the electrolyte case lid, insulating bar passes electrolyte case lid place, fixed electrode and draws copper or aluminium and be connected row and pass electrolyte case lid place and be provided with black box.
2. whole-sealing liquid resistance starter according to claim 1; It is characterized in that: trap first and first sealing ring (33) is housed in (34) end face groove; Be provided with first clamping pad (31) above first sealing ring (33); With tapped first loam cake (30) be with externally threaded first trap (34) tighten together and form first black box (10), with stainless steel bolt (35) with first trap (34) be fastened on the electrolyte case lid (32); Guarantee that the steam in the electrolyte case (5) did not leak when insulating bar (9) went up and down.
3. whole-sealing liquid resistance starter according to claim 1; It is characterized in that: second trap (39) go up in the groove of end face second sealing ring (38) be housed; Be provided with second clamping pad (37) above second sealing ring (38); Tapped second loam cake (36) be with externally threaded second trap (39) tighten together, second black box (14) is sleeved in fixed electrode (3) row of drawing; With stainless steel bolt (35) with second trap (39) be fastened on the electrolyte case lid (32); Fixed electrode (3) fairlead is sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910266298XA CN101841283B (en) | 2009-12-25 | 2009-12-25 | Whole-sealing liquid resistance starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910266298XA CN101841283B (en) | 2009-12-25 | 2009-12-25 | Whole-sealing liquid resistance starter |
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| Publication Number | Publication Date |
|---|---|
| CN101841283A CN101841283A (en) | 2010-09-22 |
| CN101841283B true CN101841283B (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910266298XA Active CN101841283B (en) | 2009-12-25 | 2009-12-25 | Whole-sealing liquid resistance starter |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227592A (en) * | 2013-04-22 | 2013-07-31 | 赵学伦 | Three-contact motor starter |
| CN103759053B (en) * | 2014-02-11 | 2016-01-20 | 尚勤贵 | A kind of outlet valve |
| CN106374782B (en) * | 2016-10-21 | 2019-02-26 | 核工业西南物理研究院 | A kind of skid regulated device assembly pole plate of super high power |
| CN106411181B (en) * | 2016-10-21 | 2019-06-18 | 核工业西南物理研究院 | A kind of skid regulated device insulation electrolytic liquid case of super high power |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0171317A1 (en) * | 1984-07-10 | 1986-02-12 | Michel Bensadoun | Liquid resistance rheostat with circulation of the electrolyte |
| CN2263846Y (en) * | 1996-05-17 | 1997-10-01 | 襄樊辊道窑设备厂 | Dustproof electrohydraulic starter |
| CN100397771C (en) * | 2005-12-05 | 2008-06-25 | 何起军 | Starting speed regulator of liquid resistance in use for squirrel cage motor |
| CN201682448U (en) * | 2009-12-25 | 2010-12-22 | 湖北万洲电气集团有限公司 | Full-closed liquid resistance starter |
-
2009
- 2009-12-25 CN CN200910266298XA patent/CN101841283B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0171317A1 (en) * | 1984-07-10 | 1986-02-12 | Michel Bensadoun | Liquid resistance rheostat with circulation of the electrolyte |
| CN2263846Y (en) * | 1996-05-17 | 1997-10-01 | 襄樊辊道窑设备厂 | Dustproof electrohydraulic starter |
| CN100397771C (en) * | 2005-12-05 | 2008-06-25 | 何起军 | Starting speed regulator of liquid resistance in use for squirrel cage motor |
| CN201682448U (en) * | 2009-12-25 | 2010-12-22 | 湖北万洲电气集团有限公司 | Full-closed liquid resistance starter |
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| Publication number | Publication date |
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| CN101841283A (en) | 2010-09-22 |
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Owner name: WORLDWIDE ELECTRIC CO., LTD. Free format text: FORMER NAME: HUBEI WANZHOU ELECTRIC GROUP CO., LTD. |
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Address after: 441001 No. 58 long march road, Hubei, Xiangyang Patentee after: Wanzhou Electrical Co., Ltd. Address before: 441001 No. 1 Wanzhou Avenue, Hubei, Xiangfan Patentee before: Hubei Wanzhou Electric Group Co., Ltd. |