CN219145093U - Dual-power control cabinet for electrolytic tank - Google Patents
Dual-power control cabinet for electrolytic tank Download PDFInfo
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- CN219145093U CN219145093U CN202223406066.XU CN202223406066U CN219145093U CN 219145093 U CN219145093 U CN 219145093U CN 202223406066 U CN202223406066 U CN 202223406066U CN 219145093 U CN219145093 U CN 219145093U
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Abstract
The utility model provides a double-power control cabinet for an electrolytic tank, and belongs to the technical field of power supplies. The automatic switching device solves the problems that the existing automatic switching of the dual power supply is easy to fail and the working stability of the groove controller is poor. This a dual supply switch board for electrolysis trough is including power each other to be equipped with switching device, main power inlet wire circuit, stand-by power inlet wire circuit and power supply line, power each other is equipped with switching device including dual supply numerical control unit and the dual supply that is connected with dual supply numerical control unit, main power inlet wire circuit, stand-by power inlet wire circuit and the power supply line that dual supply switching device is connected respectively, be connected with between main power inlet wire circuit and the dual supply numerical control unit and be used for providing zero line and provide stable power supply's isolation transformer one, be connected with between stand-by power inlet wire circuit and the dual supply numerical control unit and be used for providing zero line and provide stable power supply's isolation transformer two. The utility model realizes safe and stable production operation of the groove control machine.
Description
Technical Field
The utility model belongs to the technical field of power supplies, and relates to a double-power-supply control cabinet for an electrolytic tank.
Background
The electrolytic aluminum production needs to be provided with a cell control machine on site to control various processes of the electrolytic cell, and the power cannot be cut off in the production process, so that a dual-power mutual backup switching device is required to be equipped, and the cell control machine is ensured to control normally. In addition, because of the requirements of safety, reliability and the like in the production process of electrolytic aluminum and special regulations in industry, such as the fact that an alternating current zero line cannot be introduced into a electrolysis workshop so as to avoid accidents caused by alternating current and direct current short circuits, casualties, equipment damage and the like, how to ensure the stability of dual-power supply is a problem.
At present, the power cabinet in the large direct current environment cannot be connected with a zero line, the existing design is externally connected with 6 capacitors, the zero line is provided for simultaneously carrying out balance detection on three phases of two paths of power supplies to drive a conversion motor, and the intelligent dual-power conversion function is realized. However, the field environment of electrolytic aluminum is high in temperature and high in magnetic field, the auxiliary capacitor is easy to damage, so that the fault that the microprocessor detects data errors and cannot be automatically switched occurs, and the problem that the large-area slot controller loses power occurs.
Disclosure of Invention
The utility model aims at solving the problems in the prior art and provides a double-power-supply control cabinet for an electrolytic tank, which is used for realizing safe and stable production operation of a tank control machine.
The aim of the utility model can be achieved by the following technical scheme: the utility model provides a dual supply switch board for electrolysis trough, includes that power is each other is equipped with switching device, main power inlet wire circuit, stand-by power inlet wire circuit and is used for providing the power supply line of working electric energy for electrolysis trough cell control machine, the power is each other equipped with switching device including dual supply numerical control unit and the dual supply switching device who is connected with dual supply numerical control unit, main power inlet wire circuit, stand-by power inlet wire circuit and the power supply line that dual supply switching device connected respectively, be connected with between main power inlet wire circuit and the dual supply numerical control unit and be used for providing zero line and provide stable power supply voltage's isolation transformer one, be connected with between stand-by power inlet wire circuit and the dual supply numerical control unit and be used for providing zero line and provide stable power supply voltage's isolation transformer two.
When the double-power-supply control cabinet for the electrolytic tank is used, the main power supply inlet wire line is electrically connected with the main power supply in a three-phase mode, the standby power supply inlet wire line is electrically connected with the standby power supply in a three-phase mode, and the power supply line is connected with the electrolytic tank control machine and used for providing working electric energy for the electrolytic tank control machine. The first isolation transformer converts the three-phase power of the main power supply into stable and reliable power supply voltage, is used for providing zero line and working electric energy for the double-power-supply numerical control unit in the power mutual backup switching device, the second isolation transformer converts the three-phase power of the backup power supply into stable and reliable power supply voltage, is used for providing zero line and working electric energy for the double-power-supply numerical control unit in the power mutual backup switching device, and the first isolation transformer and the second isolation transformer are used for isolating safe voltage and providing stable and reliable working voltage for the power mutual backup switching device, so that the double-power-supply numerical control unit can reliably and safely realize switching of the work of the main power supply and the backup power supply, and guarantee is provided for safe and stable production operation of the groove control machine.
In the double-power supply control cabinet for the electrolytic tank, the power supply circuit is connected in series with a switching circuit for realizing on-off of the power supply circuit. The use of the switch circuit provides further guarantee for the safe use of the electrolytic tank control machine.
In the double-power-supply control cabinet for the electrolytic tank, the switch circuit comprises a contactor and an emergency stop button, the coil of the contactor, the emergency stop button and the power supply circuit are connected in series to form a loop, and the switch contact of the contactor is connected in series to the power supply circuit. The use of the emergency stop button can timely disconnect the coil power supply of the contactor in an emergency state.
In the dual power control cabinet for the electrolytic tank, the switch circuit comprises an air switch. The use of the air switch can separate the power supply circuit from the cell control machine of the electrolytic cell when the circuit is short-circuited, thereby playing a role in safety protection.
In the dual-power control cabinet for the electrolytic tank, the first isolation transformer and the second isolation transformer are three-phase four-wire isolation transformers.
In the double-power-supply control cabinet for the electrolytic tank, the double-power-supply control cabinet further comprises a closing switch for controlling the main power supply inlet line and the standby power supply inlet line to be powered on and off. The use of the closing switch can further ensure the use safety of the electrolytic tank control machine.
Compared with the prior art, the double-power-supply control cabinet for the electrolytic tank has the advantages that the first isolation transformer is additionally arranged between the main power supply inlet wire circuit and the double-power-supply numerical control unit, the second isolation transformer is additionally arranged between the standby power supply inlet wire circuit and the double-power-supply numerical control unit, the voltage is safely isolated, the function of providing stable and reliable power supply voltage for the double-power-supply numerical control unit is also achieved, the automatic switching reliability of the main power supply and the standby power supply is improved, and the safe and stable production operation of the tank control machine is realized.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present utility model.
Fig. 2 is a schematic structural diagram of a second embodiment of the present utility model.
In the figure, 1, a power supply mutual backup switching device; 11. a dual-power numerical control unit; 12. a dual power switching device; 2. a main power supply inlet line; 3. a standby power supply incoming line; 4. a power supply line; 5. an isolation transformer I; 6. an isolation transformer II; 7. a switching circuit; 71. an emergency stop button; 72. a contactor; 8. and a closing switch.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the embodiments of the present utility model will be described in further detail with reference to the accompanying drawings. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment one:
as shown in fig. 1, the dual power supply control cabinet for an electrolytic tank comprises a power supply mutual backup switching device 1, a main power supply inlet wire line 2, a standby power supply inlet wire line 3 and a power supply line 4 for providing working electric energy for a cell control machine of the electrolytic tank, wherein the power supply mutual backup switching device 1 comprises a dual power supply numerical control unit 11 and dual power supply switching equipment 12 connected with the dual power supply numerical control unit 11, the main power supply inlet wire line 2, the standby power supply inlet wire line 3 and the power supply line 4 which are respectively connected with the dual power supply switching equipment 12 are connected with each other, a switching circuit 7 for realizing on-off of the power supply line 4 is connected with the power supply line 4 in series, an isolation transformer I5 for providing zero line and providing stable power supply voltage is connected between the main power supply inlet wire line 2 and the dual power supply numerical control unit 11, and an isolation transformer II 6 for providing zero line and providing stable power supply voltage is connected between the standby power supply inlet wire line 3 and the dual power supply numerical control unit 11.
Wherein, the first isolation transformer 5 and the second isolation transformer 6 are three-phase four-wire isolation transformers.
The switch circuit 7 comprises a contactor 72 and a scram button 71, wherein the coil of the contactor 72, the scram button 71 and the power supply line 4 are connected in series to form a loop, and the switch contact of the contactor 72 is connected in series to the power supply line 4.
1L1, 1L2, and 1L3 in fig. 1 denote main power supply line lines 2,2L1, 2L2, and 2L3 connected to the three-phase power supply of the main power supply, and standby power supply line 3 connected to the three-phase power supply of the standby power supply. The main power supply inlet wire line 2 is connected with the three-phase inlet wire ends of the isolation transformer I5 in a one-to-one correspondence manner, the four-wire output end of the isolation transformer I5 is connected with the dual-power numerical control unit 11, the standby power supply inlet wire line 3 is connected with the three-phase inlet wire ends of the isolation transformer II 6 in a one-to-one correspondence manner, and the four-wire output end of the isolation transformer II 6 is connected with the dual-power numerical control unit 11. The first power supply output out1 and the second power supply output out2 of the dual power supply switching device 12 are both connected with the power supply line 4.
When the double-power-supply control cabinet for the electrolytic tank is used, the main power supply incoming line 2 is electrically connected with the main power supply in a three-phase mode, the standby power supply incoming line 3 is electrically connected with the standby power supply in a three-phase mode, and the power supply line 4 is connected with the electrolytic tank control machine and used for providing working electric energy for the electrolytic tank control machine. When the power is on, the first isolation transformer 5 converts 380V of the three-phase power of the main power supply into 220V of stable and reliable power supply voltage, and is used for providing zero line and working electric energy for the double-power-supply numerical control unit 11 in the power mutual backup device 1, the second isolation transformer 6 converts 380V of the three-phase power of the standby power supply into 220V of stable and reliable power supply voltage, and is used for providing zero line and working electric energy for the double-power-supply numerical control unit 11 in the power mutual backup device 1. When an emergency condition occurs, the emergency stop button 71 in the switch circuit 7 can cut off the power supply of the coil of the contactor 72 in the main circuit, so that the switch contacts connected in series in the power supply circuit 4 are disconnected, the main power supply and the standby power supply are disconnected from the electrolytic cell controller, and the safety of fault maintenance or production operation is improved.
Embodiment two:
as shown in fig. 2, the technical solution in this embodiment is basically the same as that in the first embodiment, except that the dual power control cabinet further includes a switch 8 for controlling the main power supply incoming line 2 and the standby power supply incoming line 3 to be turned on or off. The use of the closing switch 8 can further ensure the use safety of the electrolytic tank control machine.
Embodiment III:
the technical scheme in this embodiment is basically the same as that in the first embodiment, except that the switching circuit 7 includes a blank switch. The use of the air switch can separate the power supply circuit 4 from the cell control machine of the electrolytic cell when the circuit is short-circuited, thereby playing a role in safety protection.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (6)
1. The utility model provides a dual supply switch board for electrolysis trough, includes power each other is equipped with switching device (1), main power inlet wire circuit (2), stand-by power inlet wire circuit (3) and is used for providing power supply line (4) of working electric energy for electrolysis trough cell control machine, a serial communication port, power each other is equipped with switching device (1) including dual supply numerical control unit (11) and the dual supply switching device (12) that are connected with dual supply numerical control unit (11), main power inlet wire circuit (2), stand-by power inlet wire circuit (3) and power supply line (4) that dual supply switching device (12) are connected respectively, be connected with between main power inlet wire circuit (2) and dual supply numerical control unit (11) and be used for providing zero line and provide isolation transformer one (5) of stable power supply voltage, be connected with between stand-by power inlet wire circuit (3) and dual supply numerical control unit (11) and be used for providing zero line and provide isolation transformer two (6) of stable power supply voltage.
2. Double power supply control cabinet for an electrolytic tank according to claim 1, characterized in that the power supply line (4) is connected in series with a switching circuit (7) for switching on and off the power supply line (4).
3. Double power control cabinet for an electrolytic cell according to claim 2, characterized in that the switching circuit (7) comprises a contactor (72) and a scram button (71), the coil of the contactor (72), the scram button (71) and the power supply line (4) are connected in series in a loop, and the switching contacts of the contactor (72) are connected in series on the power supply line (4).
4. Double power control cabinet for an electrolytic cell according to claim 2, characterized in that the switching circuit (7) comprises an air-on switch.
5. A dual power control cabinet for an electrolytic cell according to any one of claims 1 to 4, wherein the first (5) and second (6) isolation transformers are three-phase four-wire isolation transformers.
6. Double power control cabinet for an electrolytic cell according to any of claims 1 to 4, characterized in that it further comprises a closing switch (8) for controlling the switching on and off of the main power inlet line (2) and the standby power inlet line (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223406066.XU CN219145093U (en) | 2022-12-19 | 2022-12-19 | Dual-power control cabinet for electrolytic tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223406066.XU CN219145093U (en) | 2022-12-19 | 2022-12-19 | Dual-power control cabinet for electrolytic tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219145093U true CN219145093U (en) | 2023-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223406066.XU Active CN219145093U (en) | 2022-12-19 | 2022-12-19 | Dual-power control cabinet for electrolytic tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219145093U (en) |
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- 2022-12-19 CN CN202223406066.XU patent/CN219145093U/en active Active
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