CN201450451U - Rectified power source system of integrative vacuum self-consuming furnace - Google Patents
Rectified power source system of integrative vacuum self-consuming furnace Download PDFInfo
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- CN201450451U CN201450451U CN2009200341458U CN200920034145U CN201450451U CN 201450451 U CN201450451 U CN 201450451U CN 2009200341458 U CN2009200341458 U CN 2009200341458U CN 200920034145 U CN200920034145 U CN 200920034145U CN 201450451 U CN201450451 U CN 201450451U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E40/30—Reactive power compensation
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Abstract
The utility model discloses a rectified power source system of an integrative vacuum self-consuming furnace, comprising a rectified power source cabinet, two rectified power source systems and a cooling device; the two rectified power source systems are connected in parallel to form an equivalent twelve-phase power source rectifying circuit; the rectified power source system comprises an intelligent power source switching circuit, a two-grade rectification voltage-regulation circuit, a power compensation circuit, a current-limiting reactor and a comprehensive control system which are serially connected in a three-phase power supplying line, wherein the comprehensive control system controls the intelligent power source switching circuit and a thyristor phase-control voltage-regulation rectifying circuit; the two-grade rectification voltage-regulation circuit comprises a primary rectification voltage-regulation circuit and a secondary rectification voltage-regulation circuit, and the primary rectification voltage-regulation circuit is a rectifying transformer, and the secondary rectification voltage-regulation circuit is a thyristor phase-control voltage-regulation rectifying circuit. The rectified power source system has the advantages of rational circuit design, integrative structure, simple operation, stable and reliable performance and being capable of avoiding various fault problems of the rectified power source of the existing vacuum self-consuming furnace.
Description
Technical field
The utility model relates to a kind of rectification power system, especially relates to a kind of integrated consumable electrode vacuum furnace rectification power system.
Background technology
In recent years, coloured industry was along with the national economy demand obtained fast development, and the specialty metal melting technique mainly relies on technology transfer, the main dependence on import of equipment.5 tons of consumable electrode vacuum furnace two complete equipments of the employed Titanium of domestic certain company in 2003, a whole set of technology and equipment of introducing certain company of Germany.Wherein, the supporting DC power supply of consumable electrode vacuum furnace is 2 cover 20KA/45V, and a cover DC power supply adopts saturable reactor pressure regulation, diode rectification; Another set of DC power supply adopts a thyristor voltage regulation, the two anti-star braid interphase reactor diode rectifications of secondary, direct current output band current-limiting reactor.
Particularly: cover rectifier power source 20KA/45V (saturable reactor pressure regulation) internal structure is saturable reactor, rectifier transformer and saturable reactor control winding thyristor voltage regulation part and rectifier transformer secondary diode rectification part and is arranged in the integrated cabinet of totally-enclosed; Another set of rectifier power source 20KA/45V (thyristor voltage regulation) internal structure is rectifier transformer, interphase reactor, current limiting reactor and thyristor voltage regulation and secondary diode rectification part and is arranged in the integrated cabinet of totally-enclosed.Two cover rectifier power sources all adopt airtight rectifier cabinet structural shape (quite GB GB-IP40), dustproof, strong magnetic field proof heating.
Two cover vacuum consumable electrode arc furnace rectifier power source 20KA/45V join a cover vacuum consumable electrode arc furnace, and power supply can move by independent current stabilization, also can move by current stabilization in parallel; Power supply can local be controlled, and is also remote controlled.During actual the use, realize that by the backstage industrial computer vacuum consumable electrode arc furnace carries out Automation of Manufacturing Process control by the smelting process curve.This power supply is provided with special-purpose rise arc power, the starting the arc not current interruption easily when welding; During melting, arc stream is stable and follow given not current interruption of adjusting.Simultaneously, power supply also can bear the impact of work short circuit current.In addition, 12 commutating phase circuit are formed in the current stabilization operation arranged side by side of two cover rectifier power sources, and the independent pure water cooler of the public cover of two cover rectifier power sources.
But also there is following subject matter in actual use in above-mentioned rectifier power source: when 1, adopting the saturable reactor pressure regulation, and equipment volume big (wide 3000mm), the manufacturing cost height, efficient is low, Current Regulation speed slow (hundreds of millisecond～several seconds); When adopting thyristor voltage regulation, equipment volume less (wide 2000), manufacturing cost is lower, and efficient is higher, Current Regulation speed fast (20～100 milliseconds).Therefore all adopt the thyristor voltage regulation scheme at present.
2, adopt integrated rectifier power source to require transformer, reactor compact conformation, profile installation dimension little, thereby transformer, reactor all adopt the dry type water-cooled, rectification becomes once, secondary intersects lap wound, insulation processing is bad, the long term high temperature operation causes the insulation breakdown short circuit, thereby causes the rectification loss on transmission bad.
3, running needs short circuit, causes the secondary power supply harmonic wave big, and the diode overvoltage is damaged.
Above fault all causes rectifier power source normally to move, and needs interruption maintenance, has a strong impact on the ordinary production plan.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of integrated consumable electrode vacuum furnace rectification power system is provided, its circuit design is reasonable, structure-integrated, easy and simple to handle and stable and reliable for performance, the various faults problem that can avoid existing consumable electrode vacuum furnace rectifier power source to be occurred in actual use.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of integrated consumable electrode vacuum furnace rectification power system, it is characterized in that: comprise that the rectifier power source cabinet, the correspondence that are connected to the two-way three-phase power line are installed in the heat abstractor that two in the rectifier power source cabinet overlaps rectification power systems and be laid in rectifier power source cabinet inside, described two cover rectification power systems compose in parallel an equivalence ten two-phase power rectifier circuits; Described rectification power system comprises intelligent power switching device and the two-stage regulator rectifier circuit that is serially connected in the described three-phase power line, be connected on the described three-phase power line and the preceding power compensating circuit that three-phase alternating-current supply in the described three-phase power line is carried out reactive power compensation of rectifying and pressure-regulating, the complex control system that is serially connected in the current limiting reactor in the direct current supply line behind twice voltage regulating rectifier of described two-stage regulator rectifier circuit and intelligent power switching device and Thyristor Controlled voltage regulating rectification circuit are controlled; Described two-stage regulator rectifier circuit comprises elementary regulator rectifier circuit and secondary commutation regulating circuit, and described elementary regulator rectifier circuit is a rectifier transformer, and described secondary commutation regulating circuit is the Thyristor Controlled voltage regulating rectification circuit.
Described rectifier transformer is the double reverse-stars type rectifier transformer of band interphase reactor, described double reverse-stars type rectifier transformer is made up of a winding and two secondary winding, described two secondary winding are between Y-connection and mid point N1 of the two and the N2 and connect by interphase reactor, and the number of turn of described two secondary winding is identical and polarity is opposite; The Thyristor Controlled voltage regulating rectification circuit is made up of six thyristors that are serially connected in respectively in described two secondary winding, the six phase circuits.
Also comprise current detecting unit that resulting direct current behind twice voltage regulating rectifier of described two-stage regulator rectifier circuit is detected in real time, to used each temperature detecting unit that detects in real time with the temperature of bus that electric device connects and the Alarm Unit of controlling by described complex control system in the described two cover rectification power systems, described current detecting unit, temperature detecting unit and Alarm Unit all join with described complex control system.
Described heat abstractor is a water-cooling type radiator, the cooling water pipeline that described water-cooling type radiator comprises radiator, join with described radiator, is installed in water on the cooling water pipeline delivery port and chews and be connected the flange that cooling water pipeline is used; Described complex control system is joined with the on-off control valve door that is installed on the cooling water pipeline.
Also comprise temperature sensor and pressure sensor that the hydraulic pressure to the water temperature of cooling water pipeline inside and its water inlet detects in real time, described temperature sensor and pressure sensor all connect described complex control system.
Described complex control system comprises that master controller, two all join with master controller and sub-controller of respectively the intelligent power switching device in the two cover rectification power systems and Thyristor Controlled voltage regulating rectification circuit being controlled and the backstage industrial computer that joins with master controller, described sub-controller joins with intelligent power switching device and Thyristor Controlled voltage regulating rectification circuit respectively, and described master controller and sub-controller are the PLC controller.
Be connected by the PROFIBUS bus between described master controller and the sub-controller.
Described rectifier transformer is laid in rectifier power source cabinet inner front side, and interphase reactor is installed in directly over the rectifier transformer, and current limiting reactor is laid in the inner right lateral side of rectifier power source cabinet, and the Thyristor Controlled voltage regulating rectification circuit is positioned at the back upper place of rectifier transformer.
Described rectifier power source is provided with the but intake-outlet installed of waterpipe and for the turnover wiring hole of described three-phase power line bus turnover of cooling cashier's office in a shop, and described intake-outlet and turnover wiring hole all are laid on the rear wall of rectifier power source cabinet.
The utility model compared with prior art has the following advantages:
1, simple in structure, dependable performance and result of use are good, working stability, can fully satisfy domestic grid supply quality and user's instructions for use, can similar fully alternative import rectifier power source equipment.
2, adopt integrated sealed structure, thereby bus is shortened to greatest extent, make the bus loss reduce greatly, improved overall efficiency: specifically be that rectifier transformer, interphase reactor, current limiting reactor and Thyristor Controlled voltage regulating rectification circuit are arranged in the integrated cabinet of totally-enclosed, each main power component all adopts water-cooling pattern to dispel the heat in the cabinet, the suitable GB GB-IP40 of airtight rectifier cabinet structural shape has dustproof, strong magnetic field proof heating function.
3, network-enabled intelligent control: after the utility model is set up the PLC Programmable Logic Controller, realized that this control/control far away, combined floodgate soft start, independent parallel running switching, pure water cooling unit are functions such as the start-stop of cooling water pipeline is chain, and digital communication interface and upper industrial computer networking by the PLC Programmable Logic Controller, thereby by PLC Programmable Logic Controller composition PLC supervisory control system, after setting up good digital supervision platform, can improve on-the-spot antijamming capability greatly, realize operation of this locality and remote digital and communication, and realize the technological process operation automation.
4, adopt the regulator rectifier circuit of double reverse-stars type rectifier transformer band interphase reactor to reduce the loss of half element, thereby improved overall efficiency than three phase bridge circuit.Particularly: the rectifier transformer secondary side is two groups of windings that number of turn identical polar is opposite, and be connected into two groups of three-plase half wave rectifier circuits respectively, the polarity of rectifier transformer secondary side two windings can be eliminated the dc magnetization of iron core on the contrary simultaneously, the neutral point N1 and the N2 of two secondary winding of convertor transformer are associated in together by interphase reactor Lp, guarantee that by interphase reactor Lp is set two groups of three-plase half wave rectifier circuits can conduct electricity simultaneously, make two groups of three-phase semiwave circuit parallel operations simultaneously.Compare with three-phase bridge circuit, adopting under the condition of identical thyristor, output current of the present utility model can increase and is twice.
5, compare with the saturable reactor voltage adjusting device, the volume of Thyristor Controlled regulator rectifier circuit is less, and manufacturing cost is lower, and efficient is higher, Current Regulation speed fast (20～100 milliseconds).
6, adopt the Thyristor Controlled regulator rectifier circuit to carry out the secondary pressure regulation, more succinct than the circuit structure of a pressure regulation of thyristor, secondary diode rectification, a pressure regulation of thyristor, secondary diode rectification are united two into one.
7, an equivalent 12-phase rectification circuit is formed in the i.e. two cover rectification power system parallel runnings of two rectifier cabinets, greatly reduced the mains by harmonics electric current, the mains by harmonics electric current only is half of six-phase rectifier circuit under the equal conditions; Simultaneously, adopt capacitance reactive compensation, improve power factor (PF) greatly, reduce power supply electric network pollution in the high-pressure side.
8, result of use is good, and power supply can move by independent current stabilization, also can move by current stabilization in parallel; Power supply can local be controlled, and is also remote controlled, realizes that by the backstage industrial computer vacuum consumable electrode arc furnace carries out Automation of Manufacturing Process control by the smelting process curve.During welding, need not to be provided with special-purpose rise arc power, the starting the arc not current interruption easily; During melting, arc stream is stable and follow given not current interruption of adjusting; Simultaneously, power supply can bear the impact of work short circuit current.
9, the rectification major loop has the intelligent power switching device, can prevent that causing power supply to close a floodgate to main power source impacts.
10, the triggering control system of Thyristor Controlled pressure regulation link adopts all-digital signal, open loop, closed loop manual switchover, and pulse symmetry height can not produce phase more, while trigger impulse characteristic unanimity, anti-interference, anti-high-intensity magnetic field ability is strong, the reliability height; And have rectification output current zero start function, but and continuously smooth be adjusted to rated current.
11, defencive function is perfect, the utlity model has the protection of overcurrent protection and overload-alarm, major loop switching overvoltage, the too high protection of cooling water temperature and warning, cooling water hydraulic pressure is crossed fault alarm functions such as low protection, the too high protection of bus temperature and abnormal alarm, the warning of main circuit power phase shortage.
12, centralized displaying supervisory control system: specifically carry out data acquisition and carry out being uploaded to industrial computer by RS485/RS232 serial communication mode again and showing after intelligent data handles by PLC, and to system's control of being correlated with.
13, the current limiting reactor that is adopted is the crucial key equipment that guarantees the normal fusing of arc furnace, and its capacity should guarantee that in the Current Regulation scope, arc current is stablized not current interruption.
14, the type of cooling is a water-cooled, and used cooling water channel material is the rectifier cabinet cooling water pipe, water is chewed and flange all adopts stainless steel material; Cooling water pipe selects for use the import high-quality anti-aging, corrosion resistant sebific duct. pressure and temperature are surveyed viewpoint and are installed in the middle of the collecting pipe, and to establish at pure water outlet pipe place to concentrate and monitor with thermal resistance (being loaded in the rectifier cabinet). radiator employing diameter is the heat radiator dedicated of φ 100mm, it is convenient that its active joint is changed, it is just replaceable to need not to dismantle radiator body and element, overcome the variation of corroding the equal mobility of element that heat exchange radiator more causes because of quality of cooling water, increased the reliability of equipment operation, having reduced the maintenance cost of equipment simultaneously. all joints of water-filled radiator and water-cooled busbar adopt the taper joint of special process processing, when bearing the above hydraulic test of 0.4Mpa, there is not any seepage.
In sum, the utility model circuit design rationally, use is easy and simple to handle and result of use good, the two anti-star-like rectifier transformer band interphase reactors of the elementary employing of its rectification main circuit, secondary employing Thyristor Controlled voltage regulating rectification circuit, promptly adopt two anti-star-like 6 pulse wave rectifier modes, and direct current output has flat ripple current limiting reactor, transform an existing thyristor voltage regulation, secondary diode rectification the rectification of as secondary thyristor voltage regulation; Increase Programmable Logic Controller PLC simultaneously and control, realize circuit combined floodgate soft start, and increase overvoltage absorption and protection, substitute the secondary diode rectification with high-power thyristor.Transform the capable current stabilization of back rectifier power source, guaranteed the production product quality, stable production process, and overall efficiency＞90%.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model.
Fig. 2 is the circuit theory diagrams of the utility model rectification major loop.
Fig. 3 is a structural representation of the present utility model.
Fig. 4 is the right view of Fig. 3.
Fig. 5 is the vertical view of Fig. 3.
Description of reference numerals:
1-rectifier power source cabinet; 2-intelligent power switching device; The 3-rectifier transformer;
4-Thyristor Controlled voltage regulating rectifier 5-current limiting reactor; The 6-power compensating circuit;
Circuit;
The 7-1-master controller; The 7-2-sub-controller; 7-3-backstage industrial computer;
The 8-interphase reactor; The 9-current detecting unit; The 10-Alarm Unit;
The 11-cooling water pipeline; The 12-temperature sensor; The 13-pressure sensor;
The 14-temperature detecting unit; The 15-load; The 16-positive and negative busbar;
The 17-water inlet pipe and water outlet pipe.
Embodiment
As shown in Figure 1, the utility model comprises that the rectifier power source cabinet 1, the correspondence that are connected to the two-way three-phase power line are installed in the heat abstractor that two in the rectifier power source cabinet 1 overlaps rectification power systems and be laid in rectifier power source cabinet 1 inside, and described two cover rectification power systems compose in parallel an equivalence ten two-phase power rectifier circuits.Described rectification power system comprises intelligent power switching device 2 and the two-stage regulator rectifier circuit that is serially connected in the described three-phase power line, be connected on the described three-phase power line and the preceding power compensating circuit 6 that three-phase alternating-current supply in the described three-phase power line is carried out reactive power compensation of rectifying and pressure-regulating, the complex control system that is serially connected in the current limiting reactor 5 in the direct current supply line behind twice voltage regulating rectifier of described two-stage regulator rectifier circuit and intelligent power switching device 2 and Thyristor Controlled voltage regulating rectification circuit 4 are controlled.Described two-stage regulator rectifier circuit comprises elementary regulator rectifier circuit and secondary commutation regulating circuit, and described elementary regulator rectifier circuit is a rectifier transformer 3, and described secondary commutation regulating circuit is a Thyristor Controlled voltage regulating rectification circuit 4.
In conjunction with Fig. 2, in the present embodiment, described rectifier transformer 3 is the double reverse-stars type rectifier transformer of band interphase reactor 8, described double reverse-stars type rectifier transformer is made up of a winding and two secondary winding (being specially a secondary winding of being made up of winding a, b and c and a secondary winding of being made up of winding a ', b ' and c '), it is that reactor Lp connects that described two secondary winding are between Y-connection and mid point N1 of the two and the N2 by interphase reactor 8, and the number of turn of described two secondary winding is identical and polarity is opposite; Thyristor Controlled voltage regulating rectification circuit 4 by be serially connected in respectively six thyristors in described two secondary winding, the six phase circuits (be thyristor VT1～VT6) form. in the actual use, the alternating current that is provided by the three phase supply circuit in the two cover rectification power systems equal rectification behind the two-stage regulator rectifier circuit is a direct current, and the direct current that is obtained after current limiting reactor 5 is reactor L, all is attempted by on the positive-negative power end of load 15 again.
Because two cover rectification power systems are in parallel, and according to two DC power supply when in parallel, have only when average voltage and instantaneous value all equate, just can make load 15 is the resistance R current-sharing.In the present embodiment, two groups of commutating voltage mean values of two double reverse-stars type rectifier transformer correspondences of two cover rectification power systems equate, but instantaneous value does not wait, and the mid point N1 of two secondary winding of each double reverse-stars type rectifier transformer and the voltage difference between N2 are added in reactor L
pAfter going up, then produce current i
p, current i
pTwo secondary winding that are Y-connection by the double reverse-stars type rectifier transformer have the loop of one's own, do not go in the load 15 and can not flow to, then this current i
pBe called circulation or balanced balanced current.Consider i
pAfter, every group of secondary winding is that the electric current that the three phase half wave rectification winding is born is respectively i
d/ 2 ± i
p, i wherein
dBe resulting direct current behind twice voltage regulating rectifier of described two-stage regulator rectifier circuit,, generally make L for the electric current that makes two groups of rectification power systems mean allocation as far as possible
pValue is enough big, so that with described circulation i
pBe limited in load 15 rated current 1%～2% in.
Described heat abstractor is a water-cooling type radiator, and described water-cooling type radiator comprises radiator, the cooling water pipeline 11 that joins with described radiator, the water that is installed on cooling water pipeline 11 delivery ports are chewed and the flange that is connected cooling water pipeline 11 usefulness; Described complex control system is joined with the on-off control valve door that is installed on the cooling water pipeline 11.That is to say, realize the cooling of used main power component in the two cover rectification power systems by cooling water pipeline 11, and the start-stop of described cooling water pipeline 11 is controlled automatically by described complex control system.
Simultaneously, the utility model also comprises current detecting unit 9 that resulting direct current behind twice voltage regulating rectifier of described two-stage regulator rectifier circuit is detected in real time, to used each temperature detecting unit 14 that detects in real time with the temperature of bus that electric device connects and the Alarm Unit of controlling by described complex control system 10 in the described two cover rectification power systems, described current detecting unit 9, temperature detecting unit 14 and Alarm Unit 10 all join with described complex control system.In addition, also comprise temperature sensor 12 and pressure sensor 13 that the hydraulic pressure to the water temperature of cooling water pipeline 11 inside and its water inlet detects in real time, described temperature sensor 12 and pressure sensor 13 all connect described complex control system.
Described complex control system comprises that master controller 7-1, two all join with master controller 7-1 and sub-controller 7-2 that respectively the intelligent power switching device 2 in the two cover rectification power systems and Thyristor Controlled voltage regulating rectification circuit 4 is controlled and the backstage industrial computer 7-3 that joins with master controller 7-1, described sub-controller 7-2 joins with intelligent power switching device 2 and Thyristor Controlled voltage regulating rectification circuit 4 respectively, and described master controller 7-1 and sub-controller 7-2 are the PLC controller.
In the present embodiment, be connected by the PROFIBUS bus between described master controller 7-1 and the sub-controller 7-2, carry out two-way communication by RS485 or RS232 serial communication mode between described master controller 7-1 and the backstage industrial computer 7-3.
In conjunction with Fig. 3, Fig. 4 and Fig. 5, described rectifier power source cabinet 1 is the cube casing, rectifier transformer 3 is laid in rectifier power source cabinet 1 inner front side, interphase reactor 8 is installed in directly over the rectifier transformer 3, current limiting reactor 5 is laid in rectifier power source cabinet 1 inner right lateral side, Thyristor Controlled voltage regulating rectification circuit 4 is positioned at the back upper place of rectifier transformer 3. and described rectifier power source cabinet 1 is provided with the but intake-outlet installed of waterpipe 11 and for the turnover wiring hole of described three-phase power line bus turnover of cooling, described intake-outlet and turnover wiring hole all are laid on the rear wall of rectifier power source cabinet 1. correspondingly, and the water inlet pipe and water outlet pipe 16 of cooling water pipeline 11 and join with described rectification power system and the positive and negative busbar 17 that is connected to load 15 respectively is installed in respectively on intake-outlet and the turnover wiring hole.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection range of technical solutions of the utility model according to the utility model technical spirit.
Claims (9)
1. integrated consumable electrode vacuum furnace rectification power system, it is characterized in that: comprise that the rectifier power source cabinet (1), the correspondence that are connected to the two-way three-phase power line are installed in two cover rectification power systems in the rectifier power source cabinet (1) and are laid in the inner heat abstractor of rectifier power source cabinet (1), described two cover rectification power systems compose in parallel an equivalence ten two-phase power rectifier circuits; Described rectification power system comprises intelligent power switching device (2) and the two-stage regulator rectifier circuit that is serially connected in the described three-phase power line, be connected on the described three-phase power line and the preceding power compensating circuit (6) that three-phase alternating-current supply in the described three-phase power line is carried out reactive power compensation of rectifying and pressure-regulating, the complex control system that is serially connected in the current limiting reactor (5) in the direct current supply line behind twice voltage regulating rectifier of described two-stage regulator rectifier circuit and intelligent power switching device (2) and Thyristor Controlled voltage regulating rectification circuit (4) are controlled; Described two-stage regulator rectifier circuit comprises elementary regulator rectifier circuit and secondary commutation regulating circuit, and described elementary regulator rectifier circuit is rectifier transformer (3), and described secondary commutation regulating circuit is Thyristor Controlled voltage regulating rectification circuit (4).
2. according to the described integrated consumable electrode vacuum furnace rectification power system of claim 1, it is characterized in that: described rectifier transformer (3) is the double reverse-stars type rectifier transformer of band interphase reactor (8), described double reverse-stars type rectifier transformer is made up of a winding and two secondary winding, described two secondary winding are between Y-connection and mid point N1 of the two and the N2 and connect by interphase reactor (8), and the number of turn of described two secondary winding is identical and polarity is opposite; Thyristor Controlled voltage regulating rectification circuit (4) is made up of six thyristors that are serially connected in respectively in described two secondary winding, the six phase circuits.
3. according to claim 1 or 2 described integrated consumable electrode vacuum furnace rectification power systems, it is characterized in that: also comprise the current detecting unit (9) that resulting direct current behind twice voltage regulating rectifier of described two-stage regulator rectifier circuit is detected in real time, to described two covers used each temperature detecting unit (14) that detects in real time with the temperature of bus that electric device connects and Alarm Unit (10) of controlling by described complex control system in the rectification power systems, described current detecting unit (9), temperature detecting unit (14) and Alarm Unit (10) all join with described complex control system.
4. according to the described integrated consumable electrode vacuum furnace rectification power system of claim 3, it is characterized in that: described heat abstractor is a water-cooling type radiator, and described water-cooling type radiator comprises radiator, the cooling water pipeline (11) that joins with described radiator, the water that is installed on cooling water pipeline (11) delivery port are chewed and the flange that is connected cooling water pipeline (11) usefulness; Described complex control system is joined with the on-off control valve door that is installed on the cooling water pipeline (11).
5. according to the described integrated consumable electrode vacuum furnace rectification power system of claim 4, it is characterized in that: also comprise temperature sensor (12) and pressure sensor (13) that the hydraulic pressure to the inner water temperature of cooling water pipeline (11) and its water inlet detects in real time, described temperature sensor (12) and pressure sensor (13) all connect described complex control system (7).
6. according to claim 1 or 2 described integrated consumable electrode vacuum furnace rectification power systems, it is characterized in that: described complex control system (7) comprises master controller (7-1), two all join with master controller (7-1) and respectively to intelligent power switching device (2) and Thyristor Controlled voltage regulating rectification circuit (4) sub-controller (7-2) controlled and the backstage industrial computer (7-3) that with master controller (7-1) join of two covers in the rectification power systems, described sub-controller (7-2) joins with intelligent power switching device (2) and Thyristor Controlled voltage regulating rectification circuit (4) respectively, and described master controller (7-1) and sub-controller (7-2) are the PLC controller.
7. according to the described integrated consumable electrode vacuum furnace rectification power system of claim 6, it is characterized in that: be connected by the PROFIBUS bus between described master controller (7-1) and the sub-controller (7-2).
8. according to claim 1 or 2 described integrated consumable electrode vacuum furnace rectification power systems, it is characterized in that: described rectifier transformer (3) is laid in rectifier power source cabinet (1) inner front side, interphase reactor (8) is installed in directly over the rectifier transformer (3), current limiting reactor (5) is laid in the inner right lateral side of rectifier power source cabinet (1), and Thyristor Controlled voltage regulating rectification circuit (4) is positioned at the back upper place of rectifier transformer (3).
9. according to the described integrated consumable electrode vacuum furnace rectification power system of claim 4, it is characterized in that: described rectifier power source cabinet (1) is provided with the but intake-outlet installed of waterpipe (11) and for the turnover wiring hole of described three-phase power line bus turnover of cooling, and described intake-outlet and turnover wiring hole all are laid on the rear wall of rectifier power source cabinet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200341458U CN201450451U (en) | 2009-08-07 | 2009-08-07 | Rectified power source system of integrative vacuum self-consuming furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200341458U CN201450451U (en) | 2009-08-07 | 2009-08-07 | Rectified power source system of integrative vacuum self-consuming furnace |
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| Publication Number | Publication Date |
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| CN201450451U true CN201450451U (en) | 2010-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009200341458U Expired - Fee Related CN201450451U (en) | 2009-08-07 | 2009-08-07 | Rectified power source system of integrative vacuum self-consuming furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326557A (en) * | 2013-06-29 | 2013-09-25 | 孙崇山 | Capacitance compensation energy saving system on valve side of rectifier unit |
| CN108110735A (en) * | 2018-02-08 | 2018-06-01 | 重庆泊津科技有限公司 | Lithium iron phosphate storage battery direct current emergency power system |
-
2009
- 2009-08-07 CN CN2009200341458U patent/CN201450451U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326557A (en) * | 2013-06-29 | 2013-09-25 | 孙崇山 | Capacitance compensation energy saving system on valve side of rectifier unit |
| CN108110735A (en) * | 2018-02-08 | 2018-06-01 | 重庆泊津科技有限公司 | Lithium iron phosphate storage battery direct current emergency power system |
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