CN213305296U - High-voltage switch switching device of underground drainage water pump - Google Patents
High-voltage switch switching device of underground drainage water pump Download PDFInfo
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- CN213305296U CN213305296U CN202022226706.3U CN202022226706U CN213305296U CN 213305296 U CN213305296 U CN 213305296U CN 202022226706 U CN202022226706 U CN 202022226706U CN 213305296 U CN213305296 U CN 213305296U
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Abstract
The utility model relates to a high-voltage switch switching device of an underground drainage water pump, which belongs to the technical field of high-voltage switch switching devices of underground drainage water pumps; the technical problem to be solved is as follows: the improvement of the hardware structure of the high-pressure switch switching device of the underground drainage water pump is provided; the technical scheme for solving the technical problem is as follows: the power supply control system comprises a PLC, wherein a power supply input end of the PLC is connected with an electric switch in series and then is connected with an input end of a transformer, and an output end of the transformer is respectively connected with a middle line control module and a main-standby switching control module; a plurality of intermediate line relays are arranged in the intermediate line control module, and signal input ends of the intermediate line relays are connected with a signal output end of the PLC; a plurality of switching control loops are arranged in the main and standby switching control modules, and each switching control loop is provided with a pair of main alternating current contactor coils and a pair of intermediate line relay contacts; the utility model discloses the installation is applied to drainage water pump in the pit.
Description
Technical Field
The utility model relates to a drainage water pump high tension switchgear in pit belongs to drainage water pump high tension switchgear technical field in pit.
Background
The main water pump used in the existing underground coal mine pump house is a 6KV high-pressure water pump, the adopted driver is a high-pressure soft starter, and a main loop thyristor unit adopted in the high-pressure soft starter meets the requirement of 6KV load tolerance by connecting 1140V devices in series.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome not enough that exists among the prior art, the technical problem that will solve is: the improved hardware structure of the high-pressure switch switching device of the underground drainage water pump is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: a high-voltage switch switching device of an underground drainage water pump comprises a PLC (programmable logic controller), wherein a power supply input end of the PLC is connected with an upper electric switch Q001 in series and then is connected with an input end of a transformer T102, and an output end of the transformer T102 is connected with a middle line control module and a main/standby switching control module respectively;
a plurality of intermediate line relays are arranged in the intermediate line control module, and signal input ends of the intermediate line relays are connected with a signal output end of the PLC;
a plurality of switching control loops are arranged in the main/standby switching control module, each switching control loop is provided with a pair of main alternating current contactor coils and a pair of intermediate line relay contacts, and each main alternating current contactor coil is connected with the corresponding intermediate line relay contact in series and then is connected with the output end of the transformer T102;
the contact of the main alternating current contactor is arranged in a power supply loop, and the PLC controller sends a control signal to the corresponding high-voltage contactor to realize the switching of the main soft starter and the standby soft starter control loops.
The output end of the transformer T102 is also connected with the low-voltage air switch HK and the power line filter SC in series and then is connected with the power input end of the PLC controller.
The PLC is also connected with the display screen HMI through an RS232 communication cable.
The input end of the transformer T102 is also provided with a high-voltage fuse, and the output end of the transformer T102 is also provided with a low-voltage fuse.
The model of the PLC controller is RPC 2107.
The utility model discloses beneficial effect for prior art possesses does: the utility model discloses a set up activestandby high-pressure soft starter, adopt the mode of PLC control high-pressure contactor to realize the accurate control to the water pump motor, high-pressure soft starter is inside to be provided with corresponding contactor coil, send the motor of the corresponding return circuit of signal control through PLC, install switching device in main well sump control pump room during the use, occupy less space, the installation wiring is convenient, can realize the activestandby switching function of each three high-pressure soft starters of activestandby, switch the control loop of high-pressure soft starter simultaneously, easy operation, it is few to switch over consuming time, guaranteed that sump high-power water pump can normally, accurately start the operation at any time, make things convenient for trouble soft starter's troubleshooting; the device has simple circuit hardware structure, high use reliability and convenient popularization and application.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic diagram of a circuit structure of a power supply circuit of the present invention;
fig. 2 is a schematic diagram of the circuit structure of the control loop of the present invention.
Detailed Description
The utility model relates to a high-voltage switch switching device of an underground drainage water pump, which comprises a PLC controller, wherein the power input end of the PLC controller is connected with the input end of a transformer T102 after being connected with an electric switch Q001 in series, and the output end of the transformer T102 is respectively connected with a middle line control module and a main and standby switching control module;
a plurality of intermediate line relays are arranged in the intermediate line control module, and signal input ends of the intermediate line relays are connected with a signal output end of the PLC;
a plurality of switching control loops are arranged in the main/standby switching control module, each switching control loop is provided with a pair of main alternating current contactor coils and a pair of intermediate line relay contacts, and each main alternating current contactor coil is connected with the corresponding intermediate line relay contact in series and then is connected with the output end of the transformer T102;
the contact of the main alternating current contactor is arranged in a power supply loop, and the PLC controller sends a control signal to the corresponding high-voltage contactor to realize the switching of the main soft starter and the standby soft starter control loops.
The output end of the transformer T102 is also connected with the low-voltage air switch HK and the power line filter SC in series and then is connected with the power input end of the PLC controller.
The PLC is also connected with the display screen HMI through an RS232 communication cable.
The input end of the transformer T102 is also provided with a high-voltage fuse, and the output end of the transformer T102 is also provided with a low-voltage fuse.
The model of the PLC controller is RPC 2107.
As shown in fig. 1 and 2, in the drawings, K111, K121, K211, K221, K311, and K321 are main ac contactors, K112, K122, K212, K222, K312, and K322 are neutral line relays, HK is a low-voltage air switch, DYKG is a switching power supply, SC is a power line filter, T102 is a main control transformer, HMI is a human-machine interface, and K001 and K002 are closing output relays;
when the utility model is installed, each contactor is divided into three groups, each group is provided with two contactors of 6KV and 400A, and the two contactors of each group are interlocked through external electricity; the display HMI can display a closing state and a fault state; in the figure, K001 and K002 are closing output relays and can be used as switching electric starting control loops.
The utility model discloses a set up unified PLC controller and carry out switching control to drainage water pump motor, inside through setting up high pressure change over switch, realize launching the configuration connection of activestandby equipment.
When switching high-voltage circuit, can use isolator (single-pole double throw) to realize, but because the device of 6KV grade does not have dedicated equipment in the pit, the isolator volume of ground usefulness is very big again, and 3 this kind of isolator of cover can't be installed to general explosion-proof housing, and isolator can not the area carry operation, and the contact can be burnt out in the area carry operation, consequently the utility model discloses a PLC controls high voltage contactor, realizes the switching to activestandby soft starter through connecting three to high voltage contactor to set up the start control circuit that a pair of relay switched activestandby soft starter simultaneously in addition.
About the utility model discloses what the concrete structure need explain, the utility model discloses a each part module connection relation each other is definite, realizable, except that the special explanation in the embodiment, its specific connection relation can bring corresponding technological effect to based on do not rely on under the prerequisite of corresponding software program execution, solve the utility model provides a technical problem, the utility model provides a model, the connection mode of parts, module, specific components and parts that appear all belong to the prior art such as the published patent that technical staff can acquire before the application day, published journal paper, or common general knowledge, need not to describe in detail for the technical scheme that the present case provided is clear, complete, realizable, and can be according to this technical means or obtain corresponding entity product.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. The utility model provides a drainage water pump high pressure switch auto-change over device in pit, includes the PLC controller, its characterized in that: the power supply input end of the PLC controller is connected with the input end of a transformer T102 after being connected with an upper electric switch Q001 in series, and the output end of the transformer T102 is respectively connected with the intermediate line control module and the main/standby switching control module;
a plurality of intermediate line relays are arranged in the intermediate line control module, and signal input ends of the intermediate line relays are connected with a signal output end of the PLC;
a plurality of switching control loops are arranged in the main/standby switching control module, each switching control loop is provided with a pair of main alternating current contactor coils and a pair of intermediate line relay contacts, and each main alternating current contactor coil is connected with the corresponding intermediate line relay contact in series and then is connected with the output end of the transformer T102;
the contact of the main alternating current contactor is arranged in a power supply loop, and the PLC controller sends a control signal to the corresponding high-voltage contactor to realize the switching of the main soft starter and the standby soft starter control loops.
2. The high-pressure switch switching device of the underground drainage water pump according to claim 1, characterized in that: the output end of the transformer T102 is also connected with the low-voltage air switch HK and the power line filter SC in series and then is connected with the power input end of the PLC controller.
3. The high-pressure switch switching device of the underground drainage water pump according to claim 2, characterized in that: the PLC is also connected with the display screen HMI through an RS232 communication cable.
4. The high-pressure switch switching device of the underground drainage water pump according to claim 3, characterized in that: the input end of the transformer T102 is also provided with a high-voltage fuse, and the output end of the transformer T102 is also provided with a low-voltage fuse.
5. The high-pressure switch switching device of the underground drainage water pump according to claim 4, characterized in that: the model of the PLC controller is RPC 2107.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202022226706.3U CN213305296U (en) | 2020-10-09 | 2020-10-09 | High-voltage switch switching device of underground drainage water pump |
Applications Claiming Priority (1)
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CN202022226706.3U CN213305296U (en) | 2020-10-09 | 2020-10-09 | High-voltage switch switching device of underground drainage water pump |
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CN213305296U true CN213305296U (en) | 2021-05-28 |
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CN202022226706.3U Active CN213305296U (en) | 2020-10-09 | 2020-10-09 | High-voltage switch switching device of underground drainage water pump |
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Address after: 046204 Houbao Town, Xiangyuan County, Changzhi City, Shanxi Province Patentee after: Shanxi Haitong Industrial Co.,Ltd. Address before: 046204 Chuangxin street, Houbao Town, Xiangyuan County, Changzhi City, Shanxi Province Patentee before: SHANXI LUAN HAITONG INDUSTRY & TRADE CO.,LTD. |
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