CN220505965U - Debugging device of electric regulating valve of nuclear power unit - Google Patents

Debugging device of electric regulating valve of nuclear power unit Download PDF

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Publication number
CN220505965U
CN220505965U CN202322212658.6U CN202322212658U CN220505965U CN 220505965 U CN220505965 U CN 220505965U CN 202322212658 U CN202322212658 U CN 202322212658U CN 220505965 U CN220505965 U CN 220505965U
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China
Prior art keywords
switching module
relay
stroke
module
contact
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CN202322212658.6U
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Inventor
宁传兴
覃少年
熊泽林
胡志远
姚碧清
张子健
练烨
黄贵宾
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Cgn Huizhou Nuclear Power Co ltd
China General Nuclear Power Corp
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Cgn Huizhou Nuclear Power Co ltd
China General Nuclear Power Corp
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Abstract

The utility model relates to a debugging device of an electric regulating valve of a nuclear power unit, which comprises a local/remote switching module, an open stroke/open moment switching module, a closed stroke/Guan Liju switching module, a current detection module and a switch module; the local/remote switching module is connected with the closing switch and the opening switch of the DCS system, and is connected with the switching module which is connected with an external power supply; the valve opening/moment switching module receives the opening signal and the moment signal, and the opening/moment module is connected with the local/remote switching module and outputs the valve opening/moment signal; the off-stroke/Guan Liju switching module receives the off-stroke signal and the off-moment signal, and the off-stroke/Guan Liju switching module is connected with the on-site/remote switching module and outputs a valve off-stroke/Guan Liju signal; the current detection module detects the current of the electric regulating valve. The debugging device can realize in-situ electric debugging, improve the debugging efficiency and reduce the irradiation dose of personnel.

Description

Debugging device of electric regulating valve of nuclear power unit
Technical Field
The utility model relates to the technical field of nuclear power overhaul, in particular to a debugging device of an electric regulating valve of a nuclear power unit.
Background
When the existing electric regulating valve of a nuclear power unit is debugged, the distribution board side cannot use the test box to carry out electric operation, and if the electric operation valve is required, the electric operation valve can only be completed by issuing a command through a DCS (digital instrument control system).
Because the electric regulating valve needs to be frequently operated, the electric regulating valve of the current power plant adopts an SCR (001 CE) to replace a contactor as control, the SCR acts at a high level, and the SCR stops at a low level. The DCS regulating valve module sends out pulse signals to the electric regulating valve to regulate the position according to the opening and closing commands of the electric regulating valve.
However, the above scheme has the following problems: compared with the control mode of an electric switch valve, the existing control scheme cannot be operated in an on-site electric mode, and only can be operated through a main control mode or an on-site manual mode, so that debugging efficiency is affected, and personnel irradiation dose is increased.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a debugging device for an electric regulating valve of a nuclear power unit.
The technical scheme adopted for solving the technical problems is as follows: a debugging device for constructing an electric regulating valve of a nuclear power unit, comprising: an on-site/remote switching module, an on-stroke/on-torque switching module, an off-stroke/Guan Liju switching module, a current detection module and a switch module;
the first end of the local/remote switching module is connected with a closing switch of the DCS system, the second end of the local/remote switching module is connected with an opening switch of the DCS system, the third end and the fourth end of the local/remote switching module are connected with the switching module, and the switching module is connected with an external power supply;
the first end and the second end of the opening stroke/opening moment switching module are used for receiving opening stroke signals of the electric regulating valve, the third end and the fourth end of the opening stroke/opening moment switching module are used for receiving opening moment signals of the electric regulating valve, the fifth end of the opening stroke/opening moment switching module is connected with the sixth end of the local/remote switching module, and the sixth end of the opening stroke/opening moment switching module is used for outputting valve opening stroke/opening moment signals of the electric regulating valve;
the first end and the second end of the closing stroke/Guan Liju switching module receive a closing stroke signal of the electric regulating valve, the third end and the fourth end of the closing stroke/Guan Liju switching module receive a closing moment signal of the electric regulating valve, the fifth end of the closing stroke/Guan Liju switching module is connected with the fifth end of the local/remote switching module, and the sixth end of the closing stroke/Guan Liju switching module outputs a valve closing stroke/Guan Liju signal of the electric regulating valve;
the current detection module is used for detecting the current of the electric regulating valve and outputting a current detection signal.
In the debugging device of the electric regulating valve of the nuclear power unit, the local/remote switching module comprises: the power supply comprises a first switch button, a power supply module and a first relay;
the first switch button is connected between the positive end of the power module and the positive end of the coil of the first relay, and the negative end of the coil of the first relay is connected with the negative end of the power module;
the first contact of the first relay is connected with the first end of the local/remote switching module, the second contact of the first relay is connected with the fifth end of the local/remote switching module, the third contact of the first relay is connected with the third end of the local/remote switching module, the fourth contact of the first relay is connected with the second end of the local/remote switching module, the fifth contact of the first relay is connected with the sixth end of the local/remote switching module, and the sixth contact of the first relay is connected with the fourth end of the local/remote switching module.
In the debugging device of the electric control valve of the nuclear power unit, the stroke/moment switching module comprises: a second switch button and a second relay;
the second switch button is connected between the positive end of the power module and the positive end of the coil of the second relay, and the negative end of the coil of the second relay is connected with the negative end of the power module;
the first contact of the second relay is connected with the first end of the on-stroke/on-moment switching module, the second contact of the second relay is connected with the fifth end of the on-stroke/on-moment switching module, the third contact of the second relay is connected with the third end of the on-stroke/on-moment switching module, the fourth contact of the second relay is connected with the second end of the on-stroke/on-moment switching module, the fifth contact of the second relay is connected with the sixth end of the on-stroke/on-moment switching module, and the sixth contact of the second relay is connected with the fourth end of the on-stroke/on-moment switching module.
In the debugging device of the electric regulating valve of the nuclear power unit, the closing stroke/Guan Liju switching module comprises: a third switch button and a third relay;
the third switch button is connected between the positive end of the power module and the positive end of the coil of the third relay, and the negative end of the coil of the third relay is connected with the negative end of the power module;
the first contact of the third relay is connected with the first end of the closing stroke/Guan Liju switching module, the second contact of the third relay is connected with the fifth end of the closing stroke/Guan Liju switching module, the third contact of the third relay is connected with the third end of the closing stroke/Guan Liju switching module, the fourth contact of the third relay is connected with the second end of the closing stroke/Guan Liju switching module, the fifth contact of the third relay is connected with the sixth end of the closing stroke/Guan Liju switching module, and the sixth contact of the third relay is connected with the fourth end of the closing stroke/Guan Liju switching module.
The debugging device of the electric regulating valve of the nuclear power unit, provided by the utility model, further comprises: an adapter;
the input end of the adapter is connected with the external power supply, and the positive output end and the negative output end of the adapter are respectively connected to the switch module.
In the debugging device of the electric regulating valve of the nuclear power unit, the switch module comprises: an on-site button, an off-site button, and an emergency stop button;
the on-site closing button and the emergency stop button are sequentially connected between the positive output end of the adapter and the third end of the on-site/remote switching module, one end of the on-site opening button is connected with the connecting end of the on-site closing button and the emergency stop button, and the other end of the on-site opening button is connected with the fourth end of the on-site/remote switching module.
The debugging device of the electric regulating valve of the nuclear power unit, provided by the utility model, further comprises: a battery;
the positive end of the battery is connected with the positive output end of the adapter, and the negative end of the battery is connected with the negative output end of the adapter.
In the debugging device of the electric regulating valve of the nuclear power unit, the current detection module comprises: a first detection unit, a second detection unit, and a third detection unit;
the first detection unit, the second detection unit and the third detection unit respectively detect three-phase currents of the electric regulating valve.
In the debugging device of the electric control valve of the nuclear power unit, the first detection unit comprises: the first current transformer, the second detecting element includes: the second current transformer, the third detecting element includes: a third current transformer;
the first current transformer, the second current transformer and the third current transformer are respectively arranged on an A phase line, a B phase line and a C phase line of the electric regulating valve.
The debugging device of the electric regulating valve of the nuclear power unit, provided by the utility model, further comprises: a display screen;
the display screen is used for displaying the information and the on/off time of the electric regulating valve.
The debugging device for the electric regulating valve of the nuclear power unit has the following beneficial effects: the device comprises an on-site/remote switching module, an on-stroke/on-moment switching module, an off-stroke/Guan Liju switching module, a current detection module and a switch module; the local/remote switching module is connected with the closing switch and the opening switch of the DCS system, and is connected with the switching module which is connected with an external power supply; the valve opening/moment switching module receives the opening signal and the moment signal, and the opening/moment module is connected with the local/remote switching module and outputs the valve opening/moment signal; the off-stroke/Guan Liju switching module receives the off-stroke signal and the off-moment signal, and the off-stroke/Guan Liju switching module is connected with the on-site/remote switching module and outputs a valve off-stroke/Guan Liju signal; the current detection module detects the current of the electric regulating valve. The debugging device can realize in-situ electric debugging, improve the debugging efficiency and reduce the irradiation dose of personnel.
Drawings
The utility model will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a logic block diagram of a debugging device of an electric control valve of a nuclear power unit provided by the utility model;
FIG. 2 is a schematic circuit diagram of a debugging device of an electric control valve of a nuclear power unit provided by the utility model;
FIG. 3 is a schematic circuit diagram of an in-situ/remote switching module provided by the present utility model;
FIG. 4 is a schematic circuit diagram of a start-up/start-up torque switching module provided by the present utility model;
fig. 5 is a schematic circuit diagram of the off-stroke/Guan Liju switching module provided by the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
Fig. 1 shows an embodiment of a debugging device for an electric control valve of a nuclear power unit. The debugging device of the electric regulating valve can be used for carrying out on-site electric debugging on the electric regulating valve in the nuclear power unit, does not need to be frequently matched with a main control, remarkably improves the debugging efficiency, and can also reduce the irradiation dose of personnel.
Specifically, as shown in fig. 1, in this embodiment, the debugging device for the electric control valve of the nuclear power unit includes: an on-site/remote switching module 11, an on-stroke/on-torque switching module 14, an off-stroke/Guan Liju switching module 15, a current detection module 16, and a switching module 17.
As shown in fig. 1 and 2, in this embodiment, a first end of the local/remote switching module 11 is connected to a closed switch (such as DCS-CLOSE in fig. 2) of the DCS system, a second end of the local/remote switching module 11 is connected to an OPEN switch (such as DCS-OPEN in fig. 2) of the DCS system, a third end and a fourth end of the local/remote switching module 11 are connected to a switch module 17, and the switch module 17 is connected to an external power source; the first end and the second end of the open stroke/open moment switching module 14 receive the open stroke signal of the electric regulating valve, the third end and the fourth end of the open stroke/open moment switching module 14 receive the open moment signal of the electric regulating valve, the fifth end of the open stroke/open moment switching module is connected with the sixth end of the local/remote switching module 11, and the sixth end of the open stroke/open moment switching module 14 outputs the valve open stroke/open moment signal of the electric regulating valve; the first end and the second end of the closing stroke/Guan Liju switching module 15 receive closing stroke signals of the electric regulating valve, the third end and the fourth end of the closing stroke/Guan Liju switching module 15 receive closing moment signals of the electric regulating valve, the fifth end of the closing stroke/Guan Liju switching module 15 is connected with the fifth end of the local/remote switching module 11, and the sixth end of the closing stroke/Guan Liju switching module 15 outputs valve closing stroke/Guan Liju signals of the electric regulating valve; the current detection module 16 performs current detection on the electric control valve and outputs a current detection signal.
Specifically, in this embodiment, the debugging device of the electric control valve can realize the switching between the DCS system and the on-site control by setting the on-site/remote switching module 11, that is, in order to avoid the need of frequently linking with the master control for matching debugging, the debugging device can directly switch to the on-site control by the on-site/remote switching module 11, thereby improving the debugging efficiency. In addition, the debugging device of the electric regulating valve also reserves remote control, and when DCS control is needed, the local/remote switching module 11 can switch to remote control to realize the DCS control.
In one embodiment, as shown in FIG. 3, the local/remote switching module 11 includes: first shift knob S01, power module and first relay KM1.
The first switch button S01 is connected between the positive end of the power module and the positive end of the coil of the first relay KM1, and the negative end of the coil of the first relay KM1 is connected with the negative end of the power module; the first contact of the first relay KM1 is connected to the first end of the on-site/remote switching module 11, the second contact of the first relay KM1 is connected to the fifth end of the on-site/remote switching module 11, the third contact of the first relay KM1 is connected to the third end of the on-site/remote switching module 11, the fourth contact of the first relay KM1 is connected to the second end of the on-site/remote switching module 11, the fifth contact of the first relay KM1 is connected to the sixth end of the on-site/remote switching module 11, and the sixth contact of the first relay KM1 is connected to the fourth end of the on-site/remote switching module 11. The first switch button S01 is used for controlling on-off between the first relay KM1 and the power module. Wherein, the power module can provide 24V direct current.
Specifically, in this embodiment, the commissioning tool accesses default field control, so the contacts of the first relay KM1 are connected to the local terminal by default, as shown in fig. 3. As can be seen from fig. 3, when the user presses or toggles the first switch button S01, the first switch button S01 is closed, at this time, the first relay KM1 is connected to the power module, the coil of the first relay KM1 is powered, the second contact of the first relay KM1 is connected to the third contact thereof, the fifth contact of the first relay KM1 is connected to the sixth contact thereof, and the debug tool is controlled by the DCS system.
In this embodiment, the open stroke/open torque switching module 14 may be used to implement whether the electrically operated valve opening process is stroke controlled or torque controlled. Specifically, when the input signal is an opening stroke signal, the opening process of the electric regulating valve is controlled by the stroke; when the input signal is an opening torque signal, the opening process of the electric regulating valve is controlled by torque.
In one embodiment, as shown in FIG. 4, the on-stroke/on-torque switching module includes: a second switch button S02 and a second relay KM2.
The second switch button S02 is connected between the positive end of the power module and the positive end of the coil of the second relay KM2, and the negative end of the coil of the second relay KM2 is connected with the negative end of the power module; the first contact of the second relay KM2 is connected with the first end of the open stroke/open moment switching module, the second contact of the second relay KM2 is connected with the fifth end of the open stroke/open moment switching module, the third contact of the second relay KM2 is connected with the third end of the open stroke/open moment switching module, the fourth contact of the second relay KM2 is connected with the second end of the open stroke/open moment switching module, the fifth contact of the second relay KM2 is connected with the sixth end of the open stroke/open moment switching module, and the sixth contact of the second relay KM2 is connected with the fourth end of the open stroke/open moment switching module.
Since the commissioning tool access defaults to field in-situ control, the contacts of the second relay KM2 are also defaulted to in-situ connections, as shown in fig. 4. As can be seen from fig. 4, when the user presses or toggles the second switch button S02, the second switch button S02 is closed, at this time, the second relay KM2 is connected to the power module, the coil of the second relay KM2 is powered, the second contact of the second relay KM2 is connected to the third contact thereof, the fifth contact of the second relay KM2 is connected to the sixth contact thereof, and the debugging tool is controlled by the DCS system.
In this embodiment, the closing stroke/Guan Liju switching module 15 can be used to implement whether the electrically operated valve closing process is stroke controlled or torque controlled. Specifically, when the input signal is a stroke closing signal, the closing process of the electric regulating valve is controlled by the stroke; when the input signal is a torque closing signal, the closing process of the electric regulating valve is controlled by torque.
In one embodiment, the off-stroke/Guan Liju switching module 15 comprises: a third switch button S03 and a third relay KM3.
The third switch button S03 is connected between the positive end of the power module and the positive end of the coil of the third relay KM3, and the negative end of the coil of the third relay KM3 is connected with the negative end of the power module; the first contact of the third relay KM3 is connected to the first end of the closing stroke/Guan Liju switching module 15, the second contact of the third relay KM3 is connected to the fifth end of the closing stroke/Guan Liju switching module 15, the third contact of the third relay KM3 is connected to the third end of the closing stroke/Guan Liju switching module 15, the fourth contact of the third relay KM3 is connected to the second end of the closing stroke/Guan Liju switching module 15, the fifth contact of the third relay KM3 is connected to the sixth end of the closing stroke/Guan Liju switching module 15, and the sixth contact of the third relay KM3 is connected to the fourth end of the closing stroke/Guan Liju switching module 15.
Since the commissioning tool access defaults to field in-situ control, the contacts of the second relay KM2 are also defaulted to in-situ connections, as shown in fig. 5. As can be seen from fig. 5, when the user presses or toggles the second switch button S02, the second switch button S02 is closed, at this time, the second relay KM2 is connected to the power module, the coil of the second relay KM2 is powered, the second contact of the second relay KM2 is connected to the third contact thereof, the fifth contact of the second relay KM2 is connected to the sixth contact thereof, and the debugging tool is controlled by the DCS system.
In the present embodiment, the power supply modules of the on-stroke/on-torque switching module 14 and the off-stroke/Guan Liju switching module 15 are the same power supply module as the local/remote switching module 11.
Further, as shown in fig. 1 and fig. 2, the debugging device of the electric control valve of the nuclear power unit further includes: an adapter 12; the input of the adapter 12 is connected to an external power source, and the positive and negative outputs of the adapter 12 are connected to the switch module 17, respectively. The adapter 12 is used to convert 220V power to 24 dc power to provide the power required for operation of the commissioning device.
Further, as shown in fig. 1 and fig. 2, the debugging device of the electric control valve of the nuclear power unit further includes: a battery 13; the positive terminal of the battery 13 is connected to the positive output terminal of the adapter 12, and the negative terminal of the battery 13 is connected to the negative output terminal of the adapter 12. The battery 13 is used for providing the electric energy required by the operation of the regulating device under the condition of no external power supply, and can last for 4 hours or more.
Further, in this embodiment, the debugging device of the electric control valve of the nuclear power unit further includes: a display screen; the display screen is used for displaying information and on/off time of the electric control valve. The information of the electric regulating valve comprises an opening moment action feedback signal, a closing moment action feedback signal and the like of the electric regulating valve.
As shown in fig. 2, in the present embodiment, the switch module 17 includes: on-site button S1, off-site button S2, and scram button S3.
The on-site button S2 and the scram button S3 are sequentially connected between the positive output terminal of the adapter 12 and the third terminal of the on-site/remote switching module 11, one end of the on-site button S1 is connected to the connection terminal of the on-site button S2 and the scram button S3, and the other end of the on-site button S1 is connected to the fourth terminal of the on-site/remote switching module 11.
In this embodiment, the on-site button S1 is used to control the electric control valve to open to stop the opening stroke, the on-site button S2 is used to control the electric control valve to close to stop the closing stroke, and the scram button S3 is used to control the electric control valve to scram or stop halfway during the operation.
As shown in fig. 2, in the present embodiment, the current detection module 16 includes: a first detection unit, a second detection unit, and a third detection unit; the first detection unit, the second detection unit and the third detection unit respectively detect three-phase currents of the electric regulating valve.
Wherein the first detection unit includes: the first current transformer A1, the second detection unit includes: the second current transformer A2, the third detection unit includes: a third current transformer A3; the first current transformer A1, the second current transformer A2 and the third current transformer A3 are respectively arranged on an A phase line, a B phase line and a C phase line of the electric regulating valve. The first current transformer A1, the second current transformer A2 and the third current transformer A3 are arranged to respectively detect the phase A current, the phase B current and the phase C current of the electric regulating valve, so that the current detection of the electric regulating valve is realized.
Compared with a CPR unit, a large number of pneumatic regulating valves in a nuclear island of a certain unit are changed into electric regulating valves, the number of electric heads of two units reaches approximately 3000, and the debugging device of the electric regulating valves has the following beneficial effects:
after the debugging device is utilized, the main control is not required to be frequently contacted for matching debugging, only the electric regulating valve can be verified after the debugging is finished, the debugging efficiency of the electric regulating valve can be improved by 70%, and meanwhile, the irradiation dose of personnel is reduced by 50%.
Because the electric control valve is matched with the side of the distribution board when being debugged, the electric control valve can be debugged on site by using the debugging device without frequent telephone communication, thereby reducing human errors and improving the debugging efficiency of the electric control valve by 30 percent.
Hundreds of electric heads need to be debugged and annual inspected during unit overhaul, and by adopting the tool, the manpower resource cost can be greatly saved, the electric head overhaul efficiency is improved, and the electric head overhaul period is shortened. Meanwhile, reference can be provided for the subsequent power stations with the same technology, and certain economic benefit is achieved.
The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same according to the content of the present utility model, and not to limit the scope of the present utility model. All equivalent changes and modifications made with the scope of the claims should be covered by the claims.

Claims (10)

1. The utility model provides a debugging device of nuclear power generating set electric control valve which characterized in that includes: an on-site/remote switching module, an on-stroke/on-torque switching module, an off-stroke/Guan Liju switching module, a current detection module and a switch module;
the first end of the local/remote switching module is connected with a closing switch of the DCS system, the second end of the local/remote switching module is connected with an opening switch of the DCS system, the third end and the fourth end of the local/remote switching module are connected with the switching module, and the switching module is connected with an external power supply;
the first end and the second end of the opening stroke/opening moment switching module are used for receiving opening stroke signals of the electric regulating valve, the third end and the fourth end of the opening stroke/opening moment switching module are used for receiving opening moment signals of the electric regulating valve, the fifth end of the opening stroke/opening moment switching module is connected with the sixth end of the local/remote switching module, and the sixth end of the opening stroke/opening moment switching module is used for outputting valve opening stroke/opening moment signals of the electric regulating valve;
the first end and the second end of the closing stroke/Guan Liju switching module receive a closing stroke signal of the electric regulating valve, the third end and the fourth end of the closing stroke/Guan Liju switching module receive a closing moment signal of the electric regulating valve, the fifth end of the closing stroke/Guan Liju switching module is connected with the fifth end of the local/remote switching module, and the sixth end of the closing stroke/Guan Liju switching module outputs a valve closing stroke/Guan Liju signal of the electric regulating valve;
the current detection module is used for detecting the current of the electric regulating valve and outputting a current detection signal.
2. The debugging device of a nuclear power unit electric control valve of claim 1, wherein the in-situ/remote switching module comprises: the power supply comprises a first switch button, a power supply module and a first relay;
the first switch button is connected between the positive end of the power module and the positive end of the coil of the first relay, and the negative end of the coil of the first relay is connected with the negative end of the power module;
the first contact of the first relay is connected with the first end of the local/remote switching module, the second contact of the first relay is connected with the fifth end of the local/remote switching module, the third contact of the first relay is connected with the third end of the local/remote switching module, the fourth contact of the first relay is connected with the second end of the local/remote switching module, the fifth contact of the first relay is connected with the sixth end of the local/remote switching module, and the sixth contact of the first relay is connected with the fourth end of the local/remote switching module.
3. The debugging device of a nuclear power unit electric control valve according to claim 2, wherein the opening stroke/opening moment switching module comprises: a second switch button and a second relay;
the second switch button is connected between the positive end of the power module and the positive end of the coil of the second relay, and the negative end of the coil of the second relay is connected with the negative end of the power module;
the first contact of the second relay is connected with the first end of the on-stroke/on-moment switching module, the second contact of the second relay is connected with the fifth end of the on-stroke/on-moment switching module, the third contact of the second relay is connected with the third end of the on-stroke/on-moment switching module, the fourth contact of the second relay is connected with the second end of the on-stroke/on-moment switching module, the fifth contact of the second relay is connected with the sixth end of the on-stroke/on-moment switching module, and the sixth contact of the second relay is connected with the fourth end of the on-stroke/on-moment switching module.
4. The debugging device of a nuclear power unit electric control valve according to claim 2, wherein the off-stroke/Guan Liju switching module comprises: a third switch button and a third relay;
the third switch button is connected between the positive end of the power module and the positive end of the coil of the third relay, and the negative end of the coil of the third relay is connected with the negative end of the power module;
the first contact of the third relay is connected with the first end of the closing stroke/Guan Liju switching module, the second contact of the third relay is connected with the fifth end of the closing stroke/Guan Liju switching module, the third contact of the third relay is connected with the third end of the closing stroke/Guan Liju switching module, the fourth contact of the third relay is connected with the second end of the closing stroke/Guan Liju switching module, the fifth contact of the third relay is connected with the sixth end of the closing stroke/Guan Liju switching module, and the sixth contact of the third relay is connected with the fourth end of the closing stroke/Guan Liju switching module.
5. The debugging device of an electric control valve of a nuclear power unit according to any one of claims 1-4, further comprising: an adapter;
the input end of the adapter is connected with an external power supply, and the positive output end and the negative output end of the adapter are respectively connected to the switch module.
6. The debugging device of a nuclear power unit electric control valve of claim 5, wherein the switch module comprises: an on-site button, an off-site button, and an emergency stop button;
the on-site closing button and the emergency stop button are sequentially connected between the positive output end of the adapter and the third end of the on-site/remote switching module, one end of the on-site opening button is connected with the connecting end of the on-site closing button and the emergency stop button, and the other end of the on-site opening button is connected with the fourth end of the on-site/remote switching module.
7. The debugging device of a nuclear power unit electric control valve of claim 5, further comprising: a battery;
the positive end of the battery is connected with the positive output end of the adapter, and the negative end of the battery is connected with the negative output end of the adapter.
8. The debugging device of a nuclear power unit electric control valve according to claim 1, wherein the current detection module comprises: a first detection unit, a second detection unit, and a third detection unit;
the first detection unit, the second detection unit and the third detection unit respectively detect three-phase currents of the electric regulating valve.
9. The debugging device of a nuclear power unit electric control valve according to claim 8, wherein the first detection unit comprises: the first current transformer, the second detecting element includes: the second current transformer, the third detecting element includes: a third current transformer;
the first current transformer, the second current transformer and the third current transformer are respectively arranged on an A phase line, a B phase line and a C phase line of the electric regulating valve.
10. The debugging device of an electric control valve of a nuclear power unit according to claim 1, further comprising: a display screen;
the display screen is used for displaying the information and the on/off time of the electric regulating valve.
CN202322212658.6U 2023-08-16 2023-08-16 Debugging device of electric regulating valve of nuclear power unit Active CN220505965U (en)

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