CN220510995U - Circuit based on reverse principle demagnetization - Google Patents
Circuit based on reverse principle demagnetization Download PDFInfo
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- CN220510995U CN220510995U CN202321907457.1U CN202321907457U CN220510995U CN 220510995 U CN220510995 U CN 220510995U CN 202321907457 U CN202321907457 U CN 202321907457U CN 220510995 U CN220510995 U CN 220510995U
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- thyristor module
- intelligent thyristor
- intelligent
- intermediate relay
- mod2
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- 230000005347 demagnetization Effects 0.000 title description 11
- 102100032919 Chromobox protein homolog 1 Human genes 0.000 claims abstract description 30
- 101000797584 Homo sapiens Chromobox protein homolog 1 Proteins 0.000 claims abstract description 30
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
- 230000005284 excitation Effects 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000000696 magnetic material Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The utility model relates to a demagnetizing circuit based on an inversion principle, which comprises: an intelligent thyristor module unit consisting of an intelligent thyristor module MOD1 and an intelligent thyristor module MOD2, an intermediate relay KA1 and an intermediate relay KA2; the voltage input end of the intelligent thyristor module MOD1 and the voltage input end of the intelligent thyristor module MOD2 are connected with alternating voltage; the control end of the intelligent thyristor module MOD1 and the control end of the intelligent thyristor module MOD2 are respectively connected with the intermediate relay KA2 and the intermediate relay KA 1; the output end of the intelligent thyristor module MOD1 is connected with the output end of the intelligent thyristor module MOD2 through the aluminum shell resistors R1 and R2, and the output end of the intelligent thyristor module is used as the total output end of the intelligent thyristor module unit to be connected with the exciting coil.
Description
Technical Field
The utility model belongs to the field of matched devices of magnetic material recovery type disc-type iron removers in the metallurgical industry, and particularly relates to a demagnetizing circuit based on an inversion principle.
Background
With the rapid development of national economy in recent years, the steel industry in China is also developed rapidly, more raw materials are needed, and meanwhile, higher requirements are also put forward on the quality of the raw materials, so that the task of rapidly and efficiently removing ferromagnetic impurities in magnetic materials is more and more difficult.
The removal of harmful iron parts from magnetic materials is a very complex situation, and the problem of demagnetization of the disc type iron remover is particularly critical, so that the problem of how to solve the rapid and efficient demagnetization, thereby greatly improving the service efficiency of the disc type iron remover, and reducing and avoiding the occurrence of iron leakage as much as possible is obviously particularly important.
The existing disc type iron remover demagnetizes by adopting a resistance-capacitance absorption energy device or an LC circuit to perform oscillation demagnetization, and because the structure needs to generate heat and has low speed, even capacitor explosion is likely to occur, potential safety hazards and low efficiency can be caused, so that a demagnetizing device with high demagnetization speed and high safety is urgently needed.
Disclosure of Invention
The utility model aims to provide a demagnetizing circuit based on an inversion principle, which is characterized in that the polarities of direct-current voltages obtained after rectification of two paths of thyristor modules are opposite, so that forward excitation work and reverse rapid demagnetization of an excitation coil YA1 are realized; the voltage value and the current value of the exciting coil YA1 can be measured and displayed in real time by the dc voltmeter PV1 and the dc voltmeter PA 1.
The technical scheme adopted by the utility model for achieving the purpose is as follows: a circuit for demagnetizing based on the inversion principle, comprising: an intelligent thyristor module unit consisting of an intelligent thyristor module MOD1 and an intelligent thyristor module MOD2, an intermediate relay KA1 and an intermediate relay KA2;
the voltage input end of the intelligent thyristor module MOD1 and the voltage input end of the intelligent thyristor module MOD2 are connected with alternating voltage; the control end of the intelligent thyristor module MOD1 and the control end of the intelligent thyristor module MOD2 are respectively connected with the intermediate relay KA2 and the intermediate relay KA 1; the output end of the intelligent thyristor module MOD1 is connected with the output end of the intelligent thyristor module MOD2, and the total output end serving as an intelligent thyristor module unit is connected with the exciting coil.
The voltage input end of the intelligent thyristor module MOD1 and the voltage input end of the intelligent thyristor module MOD2 are connected into alternating voltage through a circuit breaker.
The intelligent thyristor module MOD1 comprises a first control end and a second control end; the first control end of the intelligent thyristor module MOD1 is connected with the negative electrode of the control power supply through the normally closed contact of the intermediate relay KA2 and the normally open contact of the intermediate relay KA1 in sequence; the second control end of the intelligent thyristor module MOD1 is connected with the positive electrode of the control power supply.
The intelligent thyristor module MOD2 comprises a first control end and a second control end; the first control end of the intelligent thyristor module MOD2 is connected with the negative electrode of the control power supply through the normally closed contact of the intermediate relay KA1 and the normally open contact of the intermediate relay KA2 in sequence; the second control end of the intelligent thyristor module MOD2 is connected with the positive electrode of the control power supply.
The first output end and the second output end of the intelligent thyristor module MOD2 are respectively connected with the second output end and the first output end of the intelligent thyristor module MOD1 through a resistor R1 and a resistor R2, and serve as the total output end of the intelligent thyristor module unit.
The resistor R1 and the resistor R2 are aluminum shell resistors.
And a shunt is connected in series between the total output end of the intelligent thyristor module unit and the exciting coil.
The current divider is connected with an ammeter.
The total output end of the intelligent thyristor module unit is connected with a voltmeter.
The utility model has the following beneficial effects and advantages:
1. the utility model has high demagnetizing speed, does not need an energy absorbing device, and directly feeds back energy to the power grid.
2. The utility model has high safety, no heat and no explosion.
3. The direct-current voltage rectifying circuit is simple in structure, and the direct-current voltage obtained through rectification of the two paths of thyristor modules is opposite in polarity, so that forward excitation work and reverse rapid demagnetization of an excitation coil can be realized.
4. The two thyristor modules can be switched to be in an inversion state through the on-off matching of the intermediate relay KA1 and the intermediate relay KA2, and energy is fed back to a power grid, so that the rapid release of the energy is realized, the demagnetization speed is high, and the safety is high.
5. The output end of one thyristor module is connected with a resistor R1 and a resistor R2, so that the short circuit phenomenon of the circuit can be prevented; and the aluminum shell resistor is adopted, so that the size is small, the heat dissipation performance is good, the safety is high, and the protection circuit is better acted.
Drawings
Fig. 1 is an electrical schematic of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the main circuit is divided into two paths by the on-site ac 380vac and 50hz power supply after passing through the breaker QF 1: the first path is rectified by an intelligent thyristor module MOD1 to obtain direct-current voltage, and the direct-current voltage is added to two ends of an excitation coil YA1 after passing through a shunt RS 1; the second path is rectified by the intelligent thyristor module MOD2 to obtain direct-current voltage, and the direct-current voltage is coupled with the first path through the resistors R1 and R2 and is added to two ends of the exciting coil YA1 through the shunt RS 1.
Wherein, the intelligent thyristor module MOD1 and the intelligent thyristor module MOD2 are both silicon controlled modules, and the model is MJYS3-QKZL-200. The intermediate relay KA1 and the intermediate relay KA2 are respectively small plug-in type relays, and the model is RXM4AB2P7. The exciting coil YA1 is a main machine part of the disc type iron remover equipment.
The polarity of direct current voltage obtained after rectification of the two thyristor modules of the main loop is opposite, so that the forward excitation work and the reverse rapid demagnetization of the excitation coil YA1 are realized; the utility model can measure and display the voltage value and the current value of the exciting coil YA1 in real time through the direct current voltmeter PV1 and the direct current ammeter PA 1. The forward excitation operation and the reverse demagnetization state can be switched by the intermediate relays KA1 and KA 2.
When the forward rectifying thyristor module MOD1 is in a rectifying state, the intermediate relay KA1 is attracted, and the 4 pin and the 5 pin of the rectifying thyristor module MOD1 are attracted through normally open contacts of the intermediate relay KA1 to obtain trigger voltage; when excitation is required to be stopped, the intermediate relay KA1 is disconnected, the 4 pins and the 5 pins of the rectifying thyristor module MOD1 obtain inversion voltage through the normally closed contact of the intermediate relay KA2, and at the moment, the rectifying thyristor module MOD1 is in an inversion state, and energy is fed back to a power grid, so that rapid release of the energy is realized.
Thereafter, the intermediate relay KA2 is closed, the normally closed contact of the intermediate relay KA2 is opened, the rectifying thyristor module MOD1 stops operating, and the rectifying thyristor module MOD2 starts outputting the reverse excitation voltage to the coil YA 1. When the intermediate relay KA2 is disconnected, the 4 pin and the 5 pin of the rectifying thyristor module MOD2 obtain inversion voltage through the normally closed contact of the intermediate relay KA1, and at the moment, the rectifying thyristor module MOD2 is in an inversion state, and energy is fed back to a power grid, so that the rapid release of the energy is realized.
The resistors R1 and R2 are used to prevent the thyristor module MOD1 and the thyristor module MOD2 from being turned on simultaneously and from being shorted.
Claims (9)
1. A circuit for demagnetizing based on the inversion principle, comprising: an intelligent thyristor module unit consisting of an intelligent thyristor module MOD1 and an intelligent thyristor module MOD2, an intermediate relay KA1 and an intermediate relay KA2;
the voltage input end of the intelligent thyristor module MOD1 and the voltage input end of the intelligent thyristor module MOD2 are connected with alternating voltage; the control end of the intelligent thyristor module MOD1 and the control end of the intelligent thyristor module MOD2 are respectively connected with the intermediate relay KA2 and the intermediate relay KA 1; the output end of the intelligent thyristor module MOD1 is connected with the output end of the intelligent thyristor module MOD2, and the total output end serving as an intelligent thyristor module unit is connected with the exciting coil.
2. The demagnetizing circuit based on the inversion principle according to claim 1, wherein the voltage input end of the intelligent thyristor module MOD1 and the voltage input end of the intelligent thyristor module MOD2 are connected to an ac voltage through a circuit breaker.
3. The demagnetizing circuit based on the inversion principle according to claim 1, wherein the intelligent thyristor module MOD1 comprises a first control terminal and a second control terminal; the first control end of the intelligent thyristor module MOD1 is connected with the negative electrode of the control power supply through the normally closed contact of the intermediate relay KA2 and the normally open contact of the intermediate relay KA1 in sequence; the second control end of the intelligent thyristor module MOD1 is connected with the positive electrode of the control power supply.
4. The demagnetizing circuit based on the inversion principle according to claim 1, wherein the intelligent thyristor module MOD2 comprises a first control terminal and a second control terminal; the first control end of the intelligent thyristor module MOD2 is connected with the negative electrode of the control power supply through the normally closed contact of the intermediate relay KA1 and the normally open contact of the intermediate relay KA2 in sequence; the second control end of the intelligent thyristor module MOD2 is connected with the positive electrode of the control power supply.
5. The demagnetizing circuit based on the inversion principle according to claim 1, wherein the first output terminal and the second output terminal of the intelligent thyristor module MOD2 are connected with the second output terminal and the first output terminal of the intelligent thyristor module MOD1 through a resistor R1 and a resistor R2, respectively, and serve as the total output terminal of the intelligent thyristor module unit.
6. The circuit for demagnetizing according to the inversion principle of claim 5, wherein the resistor R1 and the resistor R2 are both aluminum shell resistors.
7. The demagnetizing circuit based on the inversion principle according to claim 1, wherein a shunt is connected in series between the total output end of the intelligent thyristor module unit and the exciting coil.
8. The circuit for demagnetizing according to the inversion principle of claim 7, wherein the current divider is connected with an ammeter.
9. The demagnetizing circuit based on the inversion principle according to claim 1, wherein the total output end of the intelligent thyristor module unit is connected with a voltmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321907457.1U CN220510995U (en) | 2023-07-20 | 2023-07-20 | Circuit based on reverse principle demagnetization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321907457.1U CN220510995U (en) | 2023-07-20 | 2023-07-20 | Circuit based on reverse principle demagnetization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220510995U true CN220510995U (en) | 2024-02-20 |
Family
ID=89872821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321907457.1U Active CN220510995U (en) | 2023-07-20 | 2023-07-20 | Circuit based on reverse principle demagnetization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220510995U (en) |
-
2023
- 2023-07-20 CN CN202321907457.1U patent/CN220510995U/en active Active
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