CN202906765U - Thyristor rectifying device for electrophoresis power - Google Patents
Thyristor rectifying device for electrophoresis power Download PDFInfo
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- CN202906765U CN202906765U CN 201220490779 CN201220490779U CN202906765U CN 202906765 U CN202906765 U CN 202906765U CN 201220490779 CN201220490779 CN 201220490779 CN 201220490779 U CN201220490779 U CN 201220490779U CN 202906765 U CN202906765 U CN 202906765U
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Abstract
The utility model discloses a thyristor rectifying device for an electrophoresis power, and the device comprises a main loop, a control circuit and a relay operation circuit, a power supply of the main loop is three-phase AC current L1, L2 and L3, the three-phase AC current L1, L2 and L3 power up a thyristor three-phase all-control rectifier bridge, six bridge arms of the rectifier bridge are respectively connected in parallel with a RC commutation absorbing device formed by a resistor and a capacitor connected in series, two leading-out terminal 0107 point and 0108point of the thyristor three-phase all-control rectifier bridge are respectively connected with a voltage dependent resistor ZR10, the 0108 point below the voltage dependent resistor ZR10 is connected with a current insurance ZF1, and a bottom of the current insurance ZF1 is connected in parallel with 0109 point; a parallel circuit of an ammeter ZM2 and a resistor ZR16 is connected between the 0107 point and 0110 point; and the thyristor rectifying device for the electrophoresis power employs the thyristor with compact structure, simplifies a structure of the rectifying device, reduces volume, and the device is easy to be replaced. More importantly, a rectifying mode is mature in technology, and reliability of the device is improved.
Description
Technical field
The utility model relates to the electric controling element that adopts rectifying device on a kind of electrophoresis power, specifically a kind of electrophoresis power thyristor rectifier device.
Background technology
Electrophoresis power refers to utilize the characteristic of charged particle or molecule movement in electric field, and externally device is powered.It is applied to mechanical engineering, Surface Engineering, plating and chemical plating, particularly in process of surface treatment, shows the environmental protection characteristic of good quality and height, has replaced gradually traditional process of surface treatment.
In fact electrophoresis power is exactly to utilize two sections opposite polarity positive and negative charges of electrode to form electric field.Because what the productive life electricity consumption was used all is alternating current, therefore must build rectification circuit at the electrode two ends, alternating current is carried out exporting the direct current that the user needs after the rectification.
Rectifier is exactly that single-phase or three phase sine alternating current are become adjustable stably unidirectional direct current by rectifier cell.Traditional commutation technique mainly with the principle of transformer according to the regulating of required voltage, this rectifier exists that range of regulation is narrow, device volume greatly, the problems such as not easy to operate, humorous wave interference.In addition, rectifying device also has a lot, such as turn-off thyristor GTO, reverse conducting triode thyristor, bidirectional thyristor, rectification module, power model IGBT, SIT, MOSFET etc., adopts thyristor in the utility model.Thyristor has single-phase conduction, and after thyristor added the forward anode voltage, gate pole added suitable forward gate voltage, made the thyristor turn on process be called triggering.In case after the thyristor triggering and conducting, gate pole as long as usually add a direct impulse voltage on gate pole, is called trigger voltage just to its effect out of hand.Utilize this specific character of thyristor, thyristor by certain composition of relations, is made alternating current single-phase by thyristor circuit, thereby realizes rectification.
Mainly there is following problem in existing thyristor rectifier, because the puncture voltage of thyristor is near operating voltage, thermal capacity is little, bears the poor ability of over-voltage and over-current, and the overvoltage of short time, overcurrent all may cause the infringement of thyristor; The AC circuit is connecing pain, overvoltage can occur when disconnecting.When fast acting fuse or switch cut-out, because direct current reactor discharges energy storage, can cause overvoltage at the rectifier DC output.
Summary of the invention
For the defective that exists in the prior art or deficiency, the purpose of this utility model is, a kind of electrophoresis power thyristor rectifier device is provided, the three-phase full-controlled bridge that this device main circuit adopts thyristor to build, the triggering of each thyristor in the three-phase full-controlled bridge, shutoff and realized by control circuit synchronously realize the adjusting of electric current and voltage.Rectifying bridge arm arranges RC commutation absorption plant, and AC arranges triangle RC overvoltage absorption plant, and DC side installing overvoltage protection efficiently solves the overcurrent of parameter in the prior art and the problem that overvoltage causes the thyristor infringement.
To achieve these goals, the utility model adopts following technical solution:
A kind of electrophoresis power thyristor rectifier device, comprise major loop, control circuit and relay operation circuit, the power supply of described major loop is three-phase alternating current L1, L2 and L3, L1 installs fuse ZF1-1 mutually, L2 installs fuse ZF1-2 mutually, L3 installs fuse ZF1-3 mutually, and the lower end of fuse ZF1-1, ZF1-2, ZF1-3 all links to each other with the main contacts of contactor JLC with to main circuit power supply; L1 phase and L2 install piezo-resistance ZR7 between mutually, and piezo-resistance ZR8 is installed between L2 and L3, and piezo-resistance ZR9 is installed between L1 and L3, and D.C mutual-inductor HL1, HL2 also are installed in the main circuit; L1, L2 are connected each phase line respectively at 0101 point, 0102 point, RC overvoltage absorption plant that is in series by resistance capacitance of 0103 connection with L3;
Three-phase alternating current L1, L2 and L3 power to Thyristor Three-phase full-controlled rectifier bridge, six brachium pontis of rectifier bridge are in parallel with a RC commutation absorption plant that is formed by resistance and capacitances in series respectively, 0107 one group protective circuit in parallel with 0109 of two leading-out terminals of Thyristor Three-phase full-controlled rectifier bridge, this protective circuit is 0107 series winding piezo-resistance ZR10,0108 of piezo-resistance ZR10 lower end connects current insurance ZF1, and current insurance ZF1 lower end is in parallel with 0109; Be connected with the parallel circuits of ammeter ZM2 and resistance ZR16 between 0107 and 0110; 0110 of the lower end of ammeter ZM2 and shunt resistance ZR16 is equipped with direct current reactor Ld;
4 branch roads of 0111 parallel connection in direct current reactor Ld lower end, the first branch road are connected with electric capacity ZC10 by 0112 after meeting large inductance L d1, access at last direct current negative pole 0109 point; Access direct current negative pole 0109 point behind the second branch road connecting resistance ZR11; The 3rd branch road accesses direct current negative pole 0109 point after meeting voltmeter ZM1; The 4th branch road is between the circuit both positive and negative polarity.
The utility model also comprises following other technologies feature:
Described each RC overvoltage absorption plant headtotail triangularity connects.
The control loop of described thyristor rectifier device comprises potentiometer P1, soft-start module soft start, voltage regulator, current regulator, pulse trigger, bandpass filtering modules block, relay, contactor, thyristor, the first comparator, the second comparator and the 3rd comparator; Wherein, potentiometer P1 connects soft initiator soft start, be connected with potentiometer P5, P6 on the soft initiator soft start, the output of soft initiator soft start connects with the auxiliary normally opened contact of relay J LC by the first comparator, the output access voltage regulator of the first comparator, the output of voltage regulator accesses current regulator after connecting the second comparator, is connected with potentiometer P2, P3 on the voltage regulator; The current regulator output connects the pulse trigger input by the 3rd comparator, is connected with potentiometer P7, P8 on the current regulator; Pulse generator output access gate circuit transistor gate; The auxiliary normally-closed contact of thyristor anodic bonding relay K 3, the other end of the auxiliary normally-closed contact of relay K 3 accesses the input of the second comparator and consists of the current feedback link, the thyristor negative electrode connects the auxiliary normally opened contact of contactor JLC on the one hand, access the first comparator and consist of the Voltage Feedback link, on the other hand bandpass filtering modules block is accessed the 3rd comparator.
In the described control loop, the Voltage Feedback link gathers the main circuit magnitude of voltage and feeds back after main circuit starts; The current feedback link is not occurring in the circuit alarm situation in running orderly all the time, and the current value that D.C mutual-inductor HL1, HL2 in the main circuit are gathered feeds back.
Bandpass filtering modules block in the described control loop is sent the 3rd comparator of control loop back to from the voltage harmonic component that the rectification outlet side takes out 50Hz, 100Hz, 150Hz.
Described relay operation circuit comprises relay operating power A and by its 10 branch roads of drawing:
Article one, branch road is from A end upper end of often opening the normally opened contact of button AN1 and relay K 1 in parallel, often open button AN1 in parallel with the lower end of the normally opened contact of relay K 1, connect with normally-closed contact AN2 upper end again, connect with the upper end of relay K 3 normally opened contacts in normally closed button AN2 lower end, connect with the upper end of relay K 4 normally-closed contacts in the lower end of relay K 3 normally opened contacts, connect with the upper end of the coil of relay K 1 in the lower end of relay K 4 normally-closed contacts, zero line is sent in the lower end of relay K 1 coil;
The second branch road is often opened the lower end of button AN3 and is connected with the upper end of relay K 2 coils from the upper end that button AN3 is often opened in the series connection of A end, and zero line is sent in the lower end of relay K 2 coils;
Article three, branch road is held the upper end of the normally opened contact of the normally opened contact of relay K 2 in parallel and relay K 3 from A, the normally opened contact of relay K 2 is connected with the upper end of normally closed button AN4 with the lower end of the normally opened contact of relay K 3, connect with the upper end of relay K 4 normally-closed contacts in the lower end of normally closed button AN4, connect with the upper end of relay K 3 coils in the lower end of relay K 4 normally-closed contacts, zero line is sent in the lower end of relay K 3 coils;
Article four, branch road is held the upper end of series connection control board internal relay KG1 normally opened contact from A, the upper end of the lower end series relay K4 coil of KG1 normally opened contact, and zero line is sent in the lower end of relay K 4 coils;
Article five, branch road is from the upper end of A end Parallel Control intralamellar part relay K G2 normally opened contact and relay K 1 normally opened contact, the coil upper end of the lower end series contactor JLC of internal relay KG2 normally opened contact and relay K 1 normally opened contact, zero line is sent in the coil lower end of JLC;
Article six, branch road is from the upper end of the auxiliary normally opened contact of A end series contactor JLC, connects with green color index lamp H1 in the lower end of the auxiliary normally opened contact of contactor JLC, and green color index lamp H1 sends into zero line in the lower end;
Article seven, branch road is from the upper end of the auxiliary normally-closed contact of A end series contactor JLC, connects with Red Index lamp H2 in the lower end of the auxiliary normally-closed contact of contactor JLC, and Red Index lamp H2 sends into zero line in the lower end;
Article eight, branch road is from the upper end of A end series relay K4 normally opened contact, connects with yellow indicator lamp H3 in the lower end of relay K 4 normally opened contacts, and zero line is sent in the lower end of yellow indicator lamp H3;
Article nine, branch road is from the upper end of A end series relay K3 normally-closed contact, connects with red led H4 in the lower end of relay K 3 normally-closed contacts, and zero line is sent in the lower end of red led H4;
Article ten, branch road is from A end series connection green color index lamp H5, and zero line is sent in the lower end of green color index lamp H5.
The utlity model has following advantage: 1) compact conformation, dwindled equipment volume.This rectifying device does not have complicated mechanical structure, the work friction, and noise is little; 2) be easy to change; 3) technology maturation, reliability is high, and this device has quite high conversion efficiency.Particularly in surface treatment process, in frequent start and the stopping process, efficient is lossless, but energy savings; 4) the DC adjustment scope is large.The user can adjust flexibly according to loading condition.5) start conveniently, this rectifying device adopts soft starting mode, impacts little to electrical network.
Description of drawings
Fig. 1 is major loop of the present utility model.
Fig. 2 is control loop of the present utility model.
Fig. 3 is relay operation circuit of the present utility model.
Below in conjunction with the drawings and specific embodiments the utility model is further explained.
Embodiment
Electrophoresis power thyristor rectifier device of the present utility model comprises control circuit, relay operation circuit and major loop; Wherein, control loop, relay operation circuit are controlled in order to each parts to rectifying device of the present utility model, make main circuit output user's required voltage and electric current, realize simultaneously purification and the protection of circuit.
As shown in Figure 1, the power supply of described major loop is three-phase alternating current L1, L2 and L3, L1 installs fuse ZF1-1 mutually, L2 installs fuse ZF1-2 mutually, L3 installs fuse ZF1-3 mutually, realizing overcurrent protection, the lower end of fuse ZF1-1, ZF1-2, ZF1-3 all links to each other with the main contacts of contactor JLC with to main circuit power supply; L1 phase and L2 install piezo-resistance ZR7 between mutually; piezo-resistance ZR8 is installed between L2 and L3, piezo-resistance ZR9 is installed between L1 and L3, as the overvoltage protection of main circuit; HL1, HL2 D.C mutual-inductor also are installed, in order to measure main inlet wire current value in the main circuit.L1, L2 are connected each phase line respectively at 0101 point, 0102 point, RC overvoltage absorption plant that is in series by resistance capacitance of 0103 connection with L3, each RC overvoltage absorption plant headtotail triangularity connects.Three RC overvoltage absorption plants: formed by ZC13, ZR13, formed by ZC14, ZR14, formed by ZC15, ZR15.
Three-phase alternating current L1, L2 and L3 power to Thyristor Three-phase full-controlled rectifier bridge; six brachium pontis of rectifier bridge are in parallel with a RC commutation absorption plant that is formed by resistance and capacitances in series respectively; in order to improve voltage, the current waveform that bears when thyristor turns on and off, the protection thyristor is not subjected to the damage of overvoltage, overcurrent when transition state.Six RC overvoltage absorption plants: formed by ZC1, ZR2, formed by ZC2, ZR2, formed by ZC3, ZR3, formed by ZC4, ZR4, formed by ZC5, ZR5, formed by ZC6, ZR6.Two leading-out terminals of Thyristor Three-phase full-controlled rectifier bridge (0107 with 0109 point), one group of protective circuit in parallel; this protective circuit is 0107 series winding piezo-resistance ZR10; piezo-resistance ZR10 lower end (0108 point) connects current insurance ZF1, and current insurance ZF1 lower end is in parallel with 0109.ZR10 is used for preventing the DC side overvoltage surge, and current insurance ZF1 is used for overcurrent protection.Be connected with the parallel circuits of ammeter ZM2 and resistance ZR16 between 0107 and 0110, ammeter ZM2 is used for measuring the DC side current value, and resistance ZR16 is shunt resistance, in order to the protective current table not by overcurrent damage.
0110 of the lower end of ammeter ZM2 and shunt resistance ZR16 is equipped with direct current reactor Ld, and Ld prevents current fluctuation in order to absorb the mutation current of DC side.
4 branch roads of 0111 parallel connection in direct current reactor Ld lower end, the first branch road are connected with electric capacity ZC10 by 0112 after meeting large inductance L d1, access at last direct current negative pole 0109 point, and this branch road is filter circuit, with the direct current harmonic filtration after the rectification, purify DC power supply.Access direct current negative pole 0109 point behind the second branch road connecting resistance ZR11, this resistance effect has two: shunting action, with the shunting of rectification output current, avoid positive and negative electrode current excessive; The preload effect, the user can be between both positive and negative polarity load open circuit, in the situation of access device, do not start rectifying device, observe rectified value; The 3rd branch road accesses direct current negative pole 0109 point after meeting voltmeter ZM1, measures the direct voltage between both positive and negative polarity; The 4th branch road is between the circuit both positive and negative polarity, in order to access electrophoresis tank.
As shown in Figure 2, described control loop comprises potentiometer P1, soft-start module soft start, voltage regulator, current regulator, pulse trigger, bandpass filtering modules block, relay, contactor, thyristor, the first comparator, the second comparator and the 3rd comparator; Wherein, potentiometer P1 connects soft initiator soft start, be connected with potentiometer P5, P6 on the soft initiator soft start, the output of soft initiator soft start connects with the auxiliary normally opened contact of relay J LC by the first comparator, the output of the first comparator connects the voltage regulator input, the output of voltage regulator accesses current regulator after connecting the second comparator, is connected with potentiometer P2, P3 on the voltage regulator; The current regulator output connects the pulse trigger input by the 3rd comparator, is connected with potentiometer P7, P8 on the current regulator; Pulse generator output access gate circuit transistor gate; The auxiliary normally-closed contact of thyristor anodic bonding relay K 3, the other end of the auxiliary normally-closed contact of relay K 3 accesses the input of the second comparator, consist of the current feedback link, the thyristor negative electrode connects the auxiliary normally opened contact of contactor JLC on the one hand, access the first comparator and consist of the Voltage Feedback link, on the other hand bandpass filtering modules block is accessed the 3rd comparator.
The user adjusts to required electric current and voltage value by potentiometer P1, setting value is sent into soft initiator soft start, and soft initiator soft start obtains behind the signal realizing the adjustable of output voltage electric current by the angle of flow of control three-phase full-controlled bridge, assurance equipment starts slowly, avoids impacting.When system need to stop, soft initiator soft start can make voltage drop to gradually less after, minute deenergizing realizes soft stop.Output signal is regulated soft initiator potentiometer P5 and is realized the adjusting of start-up time, and regulator potentiometer P6 realizes the adjusting of dwell time.The signal of soft initiator soft start and contactor JLC relatively after, send into voltage regulator.Voltage-regulation is regulated by potentiometer P2, P3, and potentiometer P2, P3 are the positive and negative amplitude limits of voltage regulator, and the amplitude limit value of P2 potentiometer size is adjusted, and can limit the output of total current.The signal of the output of voltage regulator and relay K 3 accesses relatively after, the access current regulator, electric current is regulated and is regulated by potentiometer P7, P8, potentiometer P7, P8 are the amplitude limits that electric current is regulated, the maximum voltage output of potentiometer P7 restriction direct current, the minimum voltage output of potentiometer P8 restriction direct current.Voltage regulator and current regulator have realized that rectifying device moves under voltage stabilizing and current stabilization dual mode, work as load variations, and voltage stabilization is constant, and electric current changes along with load variations, when electric current meets or exceeds rated current, will automatically be in limited current state; Otherwise current stabilization state.
In the feedback element, the Voltage Feedback link is only started working after major loop starts, and gathers the main circuit voltage value and feeds back, unless circuit alarm appears in the current feedback link, otherwise in running order all the time, the current value that D.C mutual-inductor HL1, HL2 in the major loop are gathered feeds back.
Bandpass filtering modules block in the control circuit is taken out the voltage harmonic component of 50Hz, 100Hz, 150Hz from the rectification outlet side, send the 3rd comparator of control loop back to again, thereby makes the harmonic wave of this frequency direct current output drop to Min..The signal that bandpass filtering modules block was processed in current regulator output relatively after, send into pulse trigger, the triggering thyristor makes thyristor in suitable angle and time trigger, the smooth work of realization rectifying device.
As shown in Figure 3, described relay operation circuit is used for the logic control of realization system.The relay operation circuit comprises relay operating power A and by its 10 branch roads of drawing.
Article one, branch road is from A end (wire size 0201) upper end of often opening the normally opened contact of button AN1 and relay K 1 in parallel, often open button AN1 in parallel with the lower end (wire size 0202) of the normally opened contact of relay K 1, connect with normally-closed contact AN2 upper end again, connect with the upper end of relay K 3 normally opened contacts in normally closed button AN2 lower end (wire size 0203), connect with the upper end of relay K 4 normally-closed contacts in the lower end of relay K 3 normally opened contacts (wire size 0204), connect with the upper end of the coil of relay K 1 in the lower end of relay K 4 normally-closed contacts (wire size 0205), zero line is sent in the lower end of relay K 1 coil.
The second branch road is often opened the lower end (wire size 0206) of button AN3 and is connected with the upper end of relay K 2 coils from the upper end that button AN3 is often opened in A end (wire size 0201) series connection, and zero line is sent in the lower end of relay K 2 coils.
Article three, branch road is from the upper end of the normally opened contact of the normally opened contact of A end (wire size 0201) relay K 2 in parallel and relay K 3, the normally opened contact of relay K 2 is connected with the upper end (wire size 0207) of normally closed button AN4 with the lower end (wire size 0207) of the normally opened contact of relay K 3, connect with the upper end of relay K 4 normally-closed contacts in the lower end of normally closed button AN4 (wire size 0208), connect with the upper end of relay K 3 coils in the lower end of relay K 4 normally-closed contacts (wire size 0209), zero line is sent in the lower end of relay K 3 coils.
Article four, branch road is held the upper end of (wire size 0201) series connection control board internal relay KG1 normally opened contact from A, the upper end of the lower end of KG1 normally opened contact (wire size 0210) series relay K4 coil, and zero line is sent in the lower end of relay K 4 coils.
Article five, branch road is from the upper end of A end (wire size 0201) Parallel Control intralamellar part relay K G2 normally opened contact and relay K 1 normally opened contact, the coil upper end of the lower end of internal relay KG2 normally opened contact and relay K 1 normally opened contact (wire size 0211) series contactor JLC, zero line is sent in the coil lower end of JLC.
Article six, branch road is from the upper end of the auxiliary normally opened contact of A end (wire size 0201) series contactor JLC, connects with green color index lamp H1 in the lower end (wire size 0212) of the auxiliary normally opened contact of contactor JLC, and green color index lamp H1 sends into zero line in the lower end.
Article seven, branch road is from the upper end of the auxiliary normally-closed contact of A end (wire size 0201) series contactor JLC, connects with Red Index lamp H2 in the lower end (wire size 0213) of the auxiliary normally-closed contact of contactor JLC, and Red Index lamp H2 sends into zero line in the lower end.
Article eight, branch road is from the upper end of A end (wire size 0201) series relay K4 normally opened contact, and the lower end of relay K 4 normally opened contacts (wire size 0214) connects with yellow indicator lamp H3, and zero line is sent in the lower end of yellow indicator lamp H3.
Article nine, branch road is from the upper end of A end (wire size 0201) series relay K3 normally-closed contact, and the lower end of relay K 3 normally-closed contacts (wire size 0215) connects with red led H4, and zero line is sent in the lower end of red led H4.
Article ten, branch road is from A end (wire size 0201) series connection green color index lamp H5, and zero line is sent in the lower end of green color index lamp H5.
Relay operation circuit specific works situation: power on first, need to press AN3 with system reset.After the relay function circuit powered on, the 7th branch road red led H2 was bright, and the demonstration main circuit is not worked, and the indicator light of the tenth branch road H5 gets electric, bright, showed relay function circuit power connection.
System self-test is fault alarm whether, if do not have, relay K 3 coils will keep getting electricity condition, and K3 often opens the button closure.Press button AN1, article one branch road is connected, and the coil of relay K 1 gets electric, and the normally opened contact of K1 is closed, connects the 5th branch road, and the coil of contactor JLC gets electric, and contactor JLC main contacts is connected, and main circuit gets electric work.The simultaneously auxiliary contact of contactor JLC action, the 6th branch road green indicating lamp H1 is bright, and the 7th branch road red led H2 goes out, and shows main circuit work.
If system occur to report to the police, it is electric that the 4th branch road relay K 4 coil get, the action of article one branch road K4 normally-closed contact.Article three, branch road K4 normally-closed contact action disconnects article one branch road, and system can't open.Simultaneously the 8th branch road relay normally open contact action, yellow indicator lamp H3 is bright, shows fault.Only after eliminating fault, make the K4 dead electricity, just can press second branch road AN3 button, reset.The normally opened contact of the 3rd branch road K2 is got electric, could again connect the 3rd branch road, the 3rd branch road relay K 3 electric, connect article one branch road K3 normally opened contact.If fault is not eliminated, the 4th branch road relay K 4 coil all the time electric, disconnect the 3rd branch road, the 8th branch road yellow indicator lamp H3 is bright all the time.Press button AN3, will cut little ice.
In the system works, if there is fault alarm, the 4th branch road relay K 4 must be electric, and the normally-closed contact of article one branch road and the 3rd branch road relay K 4 disconnects, and system stops.If there is emergency, press danger button AN4, the 3rd branch road disconnects, relay K 3 coil losing electricities, article one branch road disconnects, and system stops.While the 9th branch road relay K 3 closings of contact, red led H4 is bright, shows emergent stopping.Nonemergency does not use the AN4 halt system.
When system need to stop, when pressing AN2, article one branch road dead electricity, the 5th branch road K1 contact disconnects, the contactor dead electricity, main circuit disconnects, and system quits work.The 6th branch road disconnects simultaneously, and the 7th branch road connected, and shows that main circuit stops.
Claims (6)
1. electrophoresis power thyristor rectifier device, it is characterized in that, comprise major loop, control circuit and relay operation circuit, the power supply of described major loop is three-phase alternating current L1, L2 and L3, L1 installs fuse ZF1-1 mutually, L2 installs fuse ZF1-2 mutually, and L3 installs fuse ZF1-3 mutually, and the lower end of fuse ZF1-1, ZF1-2, ZF1-3 all links to each other with the main contacts of contactor JLC with to main circuit power supply; L1 phase and L2 install piezo-resistance ZR7 between mutually, and piezo-resistance ZR8 is installed between L2 and L3, and piezo-resistance ZR9 is installed between L1 and L3, and D.C mutual-inductor HL1, HL2 also are installed in the main circuit; L1, L2 are connected each phase line respectively at 0101 point, 0102 point, RC overvoltage absorption plant that is in series by resistance capacitance of 0103 connection with L3;
Three-phase alternating current L1, L2 and L3 power to Thyristor Three-phase full-controlled rectifier bridge, six brachium pontis of rectifier bridge are in parallel with a RC commutation absorption plant that is formed by resistance and capacitances in series respectively, 0107 one group protective circuit in parallel with 0109 of two leading-out terminals of Thyristor Three-phase full-controlled rectifier bridge, this protective circuit is 0107 series winding piezo-resistance ZR10,0108 of piezo-resistance ZR10 lower end connects current insurance ZF1, and current insurance ZF1 lower end is in parallel with 0109; Be connected with the parallel circuits of ammeter ZM2 and resistance ZR16 between 0107 and 0110; 0110 of the lower end of ammeter ZM2 and shunt resistance ZR16 is equipped with direct current reactor Ld;
4 branch roads of 0111 parallel connection in direct current reactor Ld lower end, the first branch road are connected with electric capacity ZC10 by 0112 after meeting large inductance L d1, access at last direct current negative pole 0109 point; Access direct current negative pole 0109 point behind the second branch road connecting resistance ZR11; The 3rd branch road accesses direct current negative pole 0109 point after meeting voltmeter ZM1; The 4th branch road is between the circuit both positive and negative polarity.
2. electrophoresis power thyristor rectifier device as claimed in claim 1 is characterized in that, described each RC overvoltage absorption plant headtotail triangularity connects.
3. electrophoresis power thyristor rectifier device as claimed in claim 1, it is characterized in that, the control loop of described thyristor rectifier device comprises potentiometer P1, soft-start module soft start, voltage regulator, current regulator, pulse trigger, bandpass filtering modules block, relay, contactor, thyristor, the first comparator, the second comparator and the 3rd comparator; Wherein, potentiometer P1 connects soft initiator soft start, be connected with potentiometer P5, P6 on the soft initiator soft start, the output of soft initiator soft start connects with the auxiliary normally opened contact of relay J LC by the first comparator, the output access voltage regulator of the first comparator, the output of voltage regulator accesses current regulator after connecting the second comparator, is connected with potentiometer P2, P3 on the voltage regulator; The current regulator output connects the pulse trigger input by the 3rd comparator, is connected with potentiometer P7, P8 on the current regulator; Pulse generator output access gate circuit transistor gate; The auxiliary normally-closed contact of thyristor anodic bonding relay K 3, the other end of the auxiliary normally-closed contact of relay K 3 accesses the input of the second comparator and consists of the current feedback link, the thyristor negative electrode connects the auxiliary normally opened contact of contactor JLC on the one hand, access the first comparator and consist of the Voltage Feedback link, on the other hand bandpass filtering modules block is accessed the 3rd comparator.
4. electrophoresis power thyristor rectifier device as claimed in claim 2 is characterized in that, in the described control loop, the Voltage Feedback link gathers the main circuit magnitude of voltage and feeds back after main circuit starts; The current feedback link is not occurring in the circuit alarm situation in running orderly all the time, and the current value that D.C mutual-inductor HL1, HL2 in the main circuit are gathered feeds back.
5. electrophoresis power thyristor rectifier device as claimed in claim 2 is characterized in that, the bandpass filtering modules block in the described control loop is sent the 3rd comparator of control loop back to from the voltage harmonic component that the rectification outlet side takes out 50Hz, 100Hz, 150Hz.
6. electrophoresis power thyristor rectifier device as claimed in claim 1 is characterized in that, described relay operation circuit comprises relay operating power A and by its 10 branch roads of drawing:
Article one, branch road is from A end upper end of often opening the normally opened contact of button AN1 and relay K 1 in parallel, often open button AN1 in parallel with the lower end of the normally opened contact of relay K 1, connect with normally-closed contact AN2 upper end again, connect with the upper end of relay K 3 normally opened contacts in normally closed button AN2 lower end, connect with the upper end of relay K 4 normally-closed contacts in the lower end of relay K 3 normally opened contacts, connect with the upper end of the coil of relay K 1 in the lower end of relay K 4 normally-closed contacts, zero line is sent in the lower end of relay K 1 coil;
The second branch road is often opened the lower end of button AN3 and is connected with the upper end of relay K 2 coils from the upper end that button AN3 is often opened in the series connection of A end, and zero line is sent in the lower end of relay K 2 coils;
Article three, branch road is held the upper end of the normally opened contact of the normally opened contact of relay K 2 in parallel and relay K 3 from A, the normally opened contact of relay K 2 is connected with the upper end of normally closed button AN4 with the lower end of the normally opened contact of relay K 3, connect with the upper end of relay K 4 normally-closed contacts in the lower end of normally closed button AN4, connect with the upper end of relay K 3 coils in the lower end of relay K 4 normally-closed contacts, zero line is sent in the lower end of relay K 3 coils;
Article four, branch road is held the upper end of series connection control board internal relay KG1 normally opened contact from A, the upper end of the lower end series relay K4 coil of KG1 normally opened contact, and zero line is sent in the lower end of relay K 4 coils;
Article five, branch road is from the upper end of A end Parallel Control intralamellar part relay K G2 normally opened contact and relay K 1 normally opened contact, the coil upper end of the lower end series contactor JLC of internal relay KG2 normally opened contact and relay K 1 normally opened contact, zero line is sent in the coil lower end of JLC;
Article six, branch road is from the upper end of the auxiliary normally opened contact of A end series contactor JLC, connects with green color index lamp H1 in the lower end of the auxiliary normally opened contact of contactor JLC, and green color index lamp H1 sends into zero line in the lower end;
Article seven, branch road is from the upper end of the auxiliary normally-closed contact of A end series contactor JLC, connects with Red Index lamp H2 in the lower end of the auxiliary normally-closed contact of contactor JLC, and Red Index lamp H2 sends into zero line in the lower end;
Article eight, branch road is from the upper end of A end series relay K4 normally opened contact, connects with yellow indicator lamp H3 in the lower end of relay K 4 normally opened contacts, and zero line is sent in the lower end of yellow indicator lamp H3;
Article nine, branch road is from the upper end of A end series relay K3 normally-closed contact, connects with red led H4 in the lower end of relay K 3 normally-closed contacts, and zero line is sent in the lower end of red led H4;
Article ten, branch road is from A end series connection green color index lamp H5, and zero line is sent in the lower end of green color index lamp H5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220490779 CN202906765U (en) | 2012-09-24 | 2012-09-24 | Thyristor rectifying device for electrophoresis power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220490779 CN202906765U (en) | 2012-09-24 | 2012-09-24 | Thyristor rectifying device for electrophoresis power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202906765U true CN202906765U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220490779 Expired - Fee Related CN202906765U (en) | 2012-09-24 | 2012-09-24 | Thyristor rectifying device for electrophoresis power |
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| Country | Link |
|---|---|
| CN (1) | CN202906765U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106933119A (en) * | 2015-12-30 | 2017-07-07 | 内蒙古盾安光伏科技有限公司 | Polycrystalline silicon reducing furnace power regulating cabinet control system |
| CN108599133A (en) * | 2018-04-09 | 2018-09-28 | 唐山三友集团兴达化纤有限公司 | A kind of harmonic treating apparatus |
-
2012
- 2012-09-24 CN CN 201220490779 patent/CN202906765U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106933119A (en) * | 2015-12-30 | 2017-07-07 | 内蒙古盾安光伏科技有限公司 | Polycrystalline silicon reducing furnace power regulating cabinet control system |
| CN108599133A (en) * | 2018-04-09 | 2018-09-28 | 唐山三友集团兴达化纤有限公司 | A kind of harmonic treating apparatus |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20130424 Termination date: 20130924 |