A nuclear power plant electric valve electric actuator switch debugging device and a debugging method thereof

Abstract

The present application belongs to the field of nuclear power station electric, instrument control, and specifically discloses a kind of nuclear power station electric valve electric actuator switch debugging device and its debugging method, the box cover of the device is connected on the box by box hinge, DC power supply and relay are installed in the box, open travel indicator light, close travel indicator light, open torque indicator light, close torque indicator light, current display, power switch and mode selection switch are equipped on the box cover;The open travel indicator light, close travel indicator light, open torque indicator light, close torque indicator light, current display, power switch, mode selection switch, wiring outlet end quick connector, wiring inlet end quick connector are all connected with relay.The debugging device of the present application is stable and reliable in structure, the debugging method is simple, and the electric valve can be quickly and accurately debugged, and the opening degree debugging time of electric regulating valve can also be further shortened.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of electrical and instrument control of nuclear power plant, and particularly relates to a kind of nuclear power plant electric valve electric actuator switch debugging device and its debugging method. BACKGROUND

[0002] There are about six thousand electric valves in a nuclear power plant unit, including electric on-off valves and electric regulating valves, and these electric actuators are all non-intelligent electric actuators. In each unit refueling overhaul, the actuators of about three hundred electric valves need to be overhauled, and after the overhauling, the electric valves need to be debugged, and the electric regulating valves also need to be debugged. Because the electric actuators are controlled by the main control, during the debugging, the on-site work leader needs to communicate with the main control through the telephone, and at least two maintenance personnel and one operating personnel are needed to cooperate during the debugging process. When the telephone and the valve are far away, a maintenance personnel is needed to transmit the voice. When the environment is noisy, the voice needs to be confirmed several times, and the debugging occupies a lot of time of the operating personnel and the on-site maintenance personnel. When the main control operator encounters shift change, pre-shift meeting or unit major operation, he cannot cooperate with the maintenance personnel to complete the debugging work. At the same time, due to the repeatability deviation of the switch limit of the electric actuator, the valve needs to be adjusted and tested several times to ensure that the valve is adjusted to the most appropriate position, and the adjustment process is complicated and repetitive, and the debugging efficiency is low. SUMMARY

[0003] The present application solves the technical problem that the process of on-site debugging of a nuclear power plant electric valve is complicated and repetitive, the communication time is long, the debugging accuracy is not high, and the radiation dose received during the debugging of some electric valves in the high radiation dose area is large, which is not conducive to the long-term on-site electric valve debugging work. The present application provides a kind of nuclear power plant electric valve electric actuator switch debugging device and its debugging method. The debugging device is stable and reliable in structure, the debugging method is simple, and the electric valve can be quickly and accurately debugged. At the same time, the debugging time of the opening degree of the electric regulating valve can be further shortened.

[0004] The technical scheme for realizing the object of the present application is as follows: a kind of nuclear power station electric valve electric actuator switch debugging device, the device includes box hinge, current display, open torque indicator, close torque indicator, wiring outlet end quick connector, mode selection switch, box cover, close travel indicator, open travel indicator, wiring inlet end quick connector, power switch, box, DC power supply and several relays, the box cover is connected on the box by box hinge, DC power supply and relay are installed in the box, open travel indicator, close travel indicator, open torque indicator, close torque indicator, current display, power switch and mode selection switch are equipped on the box cover;The open travel indicator, close travel indicator, open torque indicator, close torque indicator, current display, power switch, mode selection switch, wiring outlet end quick connector, wiring inlet end quick connector are connected with relay;The open travel indicator, close travel indicator, open torque indicator, close torque indicator are installed on the side of the box cover;The open travel indicator, close travel indicator and open torque indicator, close torque indicator are symmetrically distributed on the two sides of current display;The power switch and mode selection switch are installed on the other side of the box cover, and mode selection switch is fixed by drilling hole on the box cover;The wiring inlet end quick connector and wiring outlet end quick connector are fixedly installed on the two side walls of the box respectively;The wiring inlet end quick connector and wiring outlet end quick connector are connected with the relay in the box by cable;The relay in the box includes relay KM1 and relay KM2, and each of the relays includes normally open contact and normally closed contact;The relay KM1 and relay KM2 are connected in parallel and connected with one end of mode selection switch by wire in series;The other end of mode selection switch is connected with power switch and current display by wire;The power switch is also connected with DC power supply, and DC power supply is connected with relay KM1 and relay KM2 connected in parallel and current display.

[0005] A kind of nuclear power station electric valve electric actuator electric switch debugging method, the method steps are as follows:

[0006] Step S1: the control cable connector of the nuclear power station electric actuator to be debugged is connected with the wiring inlet end quick connector of switch debugging device;

[0007] Step S2: the wiring outlet end quick connector of switch debugging device is connected to the connector of nuclear power station electric actuator and control system;

[0008] Step S3: power switch is dialled to open position, mode selection switch is selected to electric debugging mode, at this time, current display appears numerical display, at this time, open travel indicator and close travel indicator are dark and extinguished state.Simultaneously, open torque indicator and close torque indicator are bright and open state;

[0009] Step S4: the electric valve of the travel control mode, the electric actuator of the nuclear power station is operated to the full closing position, the closing travel switch of the electric head of the electric actuator of the nuclear power station is adjusted, and the closing travel indicator lamp on the device is observed to be bright and open, so that the electric actuator closing position setting is determined to be completed; if the electric valve is a torque control mode, the closing torque indicator lamp is dark and off;

[0010] Step S5: the electric actuator of the nuclear power station is operated to the full opening position, the opening travel switch of the electric head of the electric actuator of the nuclear power station is adjusted, and the opening travel indicator lamp on the device is observed to be bright and open;

[0011] Step S6: for the opening degree adjustment of the electric actuator of the electric valve of the adjustment type, the current display on the current display is observed; when the valve opening degree of the electric valve is 0, the current display is 4mA, and when the valve opening degree display of the electric valve is 100%, the current display is 20mA;

[0012] Step S7: after the opening and closing adjustment of the electric actuator of the nuclear power station is completed, the wiring inlet end quick connector and the wiring outlet end quick connector are disconnected, and the opening and closing adjustment of the electric actuator of the nuclear power station is completed.

[0013] A method for manually opening and closing adjustment of an electric actuator of a nuclear power station electric valve, the method steps are as follows:

[0014] Step S1: connect the electric actuator control cable connector of the nuclear power station to be adjusted to the wiring inlet end quick connector of the opening and closing adjustment device, and do not connect the wiring outlet end quick connector;

[0015] Step S2: turn the power switch to the opening position, and select the manual adjustment mode on the mode selection switch; at this time, the opening travel indicator lamp and the closing travel indicator lamp are dark and off, and the opening torque indicator lamp and the closing torque indicator lamp are bright and on;

[0016] Step S3: for the electric valve of the travel control mode, the electric actuator of the nuclear power station is manually operated to the full closing position, the closing travel switch of the electric head of the electric actuator of the nuclear power station is adjusted, and the closing travel indicator lamp on the device is observed to be bright and open, so that the electric actuator closing position setting is determined to be completed; if the electric valve is a torque control mode, the closing torque indicator lamp is dark and off;

[0017] Step S4: the electric actuator is manually operated to the full opening position, and the opening travel switch of the electric head of the electric actuator is adjusted; at this time, the opening travel indicator lamp on the device is observed to be bright and open;

[0018] Step S5: for the opening degree adjustment of the electric actuator of the adjustment type, the current display on the current display is observed; when the valve opening degree is 0, the current display is 4mA, and when the valve opening degree display is 100%, the current display is 20mA;

[0019] Step S6: after the debugging is completed, disconnect the wiring inlet end quick connector, and complete the on-off debugging of the electric actuator of the nuclear power station.

[0020] The beneficial technical effects of the present application are:

[0021] (1) The on-off debugging device for the electric actuator of the electric valve of the nuclear power station of the present application displays the limit feedback and opening degree feedback of the electric valve on the device, thereby enhancing the visual degree of debugging; in addition, according to the different characteristics of the electric and instrument control line interfaces of the electric valve on site, a plurality of quick plug-in electric and instrument control wiring devices are designed to facilitate the connection and debugging work of the electric actuator with different electric and instrument control interfaces on site.

[0022] (2) The on-off debugging device for the electric actuator of the electric valve of the nuclear power station and the debugging method thereof solve the problems of complicated debugging process, occupation of more manpower and time, and also solve the problem of complicated opening degree feedback debugging of the electric regulating valve, thereby saving a large amount of time and manpower and greatly improving the efficiency of debugging work.

[0023] (3) The on-off debugging device for the electric actuator of the electric valve of the nuclear power station and the debugging method thereof provided by the present application have stable and reliable device structure, simple use method, and can quickly and accurately debug the electric valve, thereby improving the debugging efficiency of the electric valve.

[0024] (4) The on-off debugging device for the electric actuator of the electric valve of the nuclear power station and the debugging method thereof provided by the present application simplify the debugging process of the electric valve, improve the debugging efficiency of the electric valve, and can reduce the collective radiation dose for the debugging of the electric valve in the high radiation dose area.

[0025] (5) The on-off debugging device for the electric actuator of the electric valve of the nuclear power station and the debugging method thereof provided by the present application adopt one-key selection mode, can complete the debugging of the electric valve without connecting the control system, are convenient for the debugging of the valve position opening degree of the electric regulating valve, and determine the valve opening degree feedback by observing the current value change displayed.

[0026] (6) The on-off debugging device for the electric actuator of the electric valve of the nuclear power station and the debugging method thereof provided by the present application have simple and compact structure, are small and convenient to carry; are suitable for the debugging of the electric valve with different electric and instrument control interfaces; and are suitable for the debugging of the electric valve and the electric regulating valve with different control modes of stroke control or torque control. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 FIG. 1 is a structural schematic view of the on-off debugging device for the electric actuator of the electric valve of the nuclear power station provided by the present application;

[0028] Figure 2This is a control logic circuit diagram of a switch debugging device for an electric valve and electric actuator of a nuclear power station provided by the present invention.

[0029] Figure 1 Middle: 1. Box hinge, 2. Current display, 3. Open torque indicator light, 4. Close torque indicator light, 5. Wiring outlet quick connector, 6. Mode selector switch, 7. Box cover, 8. Close travel indicator light, 9. Open travel indicator light, 10. Wiring inlet quick connector, 11. Power switch, 12. Box body.

[0030] Figure 2 middle:

[0031] 11 is the power switch; 6 is the mode selection switch; 2 is the current display; 3 is the opening torque indicator light; 4 is the closing torque indicator light; 8 is the closing stroke indicator light; 9 is the opening stroke indicator light, and 13 is the DC power supply.

[0032] KM1 is a relay, KM1-1A, KM1-2A, KM1-3A, KM1-4A are the normally open contacts of the relay, and KM1-1B, KM1-2B, KM1-3B, KM1-4B are the normally closed contacts of the relay;

[0033] KM2 is a relay, KM2-1A, KM2-2A, KM2-3A, and KM2-4A are the normally open contacts of the relay, and KM2-1B, KM2-2B, and KM2-3B are the normally closed contacts of the relay. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0035] like Figure 1 、 Figure 2As shown, the nuclear power station electric valve electric actuator switch debugging device provided by the application comprises a box hinge 1, a current display 2, an opening torque indicating lamp 3, a closing torque indicating lamp 4, a wiring outlet end quick connector 5, a mode selection switch 6, a box cover 7, a closing stroke indicating lamp 8, an opening stroke indicating lamp 9, a wiring inlet end quick connector 10, a power switch 11, a box body 12, a DC power supply 13 and a relay. The box cover 7 is connected to the box body 12 through the box hinge 1, and the DC power supply 13 and the relay are installed in the box body 12. The opening stroke indicating lamp 9, the closing stroke indicating lamp 8, the opening torque indicating lamp 3, the closing torque indicating lamp 4, the current display 2, the power switch 11 and the mode selection switch 6 are arranged on the box cover 7. The opening stroke indicating lamp 9, the closing stroke indicating lamp 8, the opening torque indicating lamp 3 and the closing torque indicating lamp 4 are arranged on the upper side of the box cover 7, and the opening stroke indicating lamp 9 and the closing stroke indicating lamp 8 are symmetrically arranged on the two sides of the current display 2. The power switch 11 and the mode selection switch 6 are arranged on the other upper side of the box cover 7. The wiring inlet end quick connector 10 and the wiring outlet end quick connector 5 are respectively fixedly arranged on the two side walls of the box body 12, and the wiring inlet end quick connector 10 and the wiring outlet end quick connector 5 are connected to the relay in the box body 12 through cables.

[0036] The relay and the DC power supply 13 are fixedly arranged on the bottom of the box body 12. The opening stroke indicating lamp 9, the closing stroke indicating lamp 8, the opening torque indicating lamp 3, the closing torque indicating lamp 4, the current display 2, the power switch 11 and the mode selection switch 6 are fixedly arranged on the box cover 7 through drilling, and the wiring inlet end quick connector 10 and the wiring outlet end quick connector 5 are respectively fixedly arranged on the left and right sides of the box body 12 through drilling. Figure 1 The components shown in the figure are connected according to Figure 2 The control circuit diagram shown is connected through cables, and the box cover 7 and the box body 12 are connected through the box hinge 1.

[0037] As shown in the figure Figure 2 and Figure 1 The relay in the box body 12 comprises a relay KM1 and a relay KM2. The normally open contacts KM1-1A, KM1-2A, KM1-3A and KM1-4A and the normally closed contacts KM1-1B, KM1-2B, KM1-3B and KM1-4B of the relay KM1 are respectively connected to the opening stroke indicating lamp 9, the closing stroke indicating lamp 8, the opening torque indicating lamp 3, the closing torque indicating lamp 4, the wiring inlet end quick connector 10 and the wiring outlet end quick connector 5 on the box cover 7 through wires. The relay KM1 and the relay KM2 in the box body 12 are respectively connected to the mode selection switch 6 on the box cover 7 through wires. The DC power supply 13 in the box body 12 is connected to the power switch 11 and the current display 2 on the box cover 7 through cables. The power switch 11 is also connected to the current display 2 through wires in the box body 12. Figure 2The normally open contacts and normally closed contacts of relays KM1 and KM2 are shown in the figure. Relay KM1 includes normally open contacts KM1-1A, KM1-2A, KM1-3A, and KM1-4A, and normally closed contacts KM1-1B, KM1-2B, KM1-3B, and KM1-4B. The normally closed contact KM1-1B, normally open contact KM1-1A, and torque indicator light 3 are connected in series via wires. The normally open contact KM1-1A is connected to the 9 ， The # end is connected in series with the opening torque indicator light 3 through a wire, and the other end of the normally open contact KM1-1A is connected in series with the normally closed contact KM1-1B through a wire. The normally closed contact KM1-2B, the normally open contact KM1-2A, and the closing torque indicator light 4 are connected in series in sequence through wires. ， The # end is connected in series with the closing torque indicator light 4 through a wire, and the other end of the normally open contact KM1-2A is connected in series with the normally closed contact KM1-2B through a wire. The normally closed contact KM1-3B, the normally open contact KM1-3A, and the opening stroke indicator light 9 are connected in series in sequence through wires. ， The # end is connected in series with the open travel indicator light 9 through a wire, and the other end of the normally open contact KM1-3A is connected in series with the normally closed contact KM1-3B through a wire. The normally closed contact KM1-4B, the normally open contact KM1-4A, and the close travel indicator light 8 are connected in series in sequence through wires. ， The # end is connected in series with the travel indicator light 8 via a wire. The other end of the normally open contact KM1-4A is connected in series with the normally closed contact KM1-4B via a wire. Relays KM1 and KM2 are connected in parallel and connected in series with one end of the mode selector switch 6 via a wire. The other end of the mode selector switch 6 is connected via a wire to one end of the power switch 11 and the current indicator 2. The other end of the power switch 11 is connected to the positive terminal of the DC power supply 13. The negative terminal of the DC power supply 13 is connected to the parallel relays KM1 and KM2, and the current indicator 2, respectively.

[0038] The 8# terminal of the wiring inlet end quick connector 10 is connected with the normally closed contact KM2-1B of the relay KM2 through a wire, the 9# terminal of the wiring inlet end quick connector 10 is connected with the open torque indicator lamp 3 through a wire, the 13# terminal of the wiring inlet end quick connector 10 is connected with the close torque indicator lamp 4 through a wire, the 17# terminal of the wiring inlet end quick connector 10 is connected with the open stroke indicator lamp 9 through a wire, and the 21# terminal of the wiring inlet end quick connector 10 is connected with the close stroke indicator lamp 8 through a wire. The 30# terminal and the 32# terminal of the wiring inlet end quick connector 10 are connected with the normally open contact KM2-4A and the normally closed contact KM2-3B of the relay KM2 through wires, the 31# terminal of the wiring inlet end quick connector 10 is connected with the normally open contact KM2-2A and the normally closed contact KM2-2B of the relay KM2 through wires, and the 33# terminal of the wiring inlet end quick connector 10 is connected with the current display 2 through a wire.

[0039] The 8# terminal of the wiring outlet end quick connector 5 is connected with the normally open contact KM2-1A of the relay KM2 through a wire, the 9# terminal of the wiring outlet end quick connector 5 is connected with the normally open contact KM1-1A of the relay KM1 through a wire, the 13# terminal of the wiring outlet end quick connector 5 is connected with the normally open contact KM1-2A of the relay KM1 through a wire, the 17# terminal of the wiring outlet end quick connector 5 is connected with the normally open contact KM1-3A of the relay KM1 through a wire, the 21# terminal of the wiring outlet end quick connector 5 is connected with the normally open contact KM1-4A of the relay KM1 through a wire, and the 30# terminal and the 32# terminal of the wiring outlet end quick connector 5 are connected with the normally open contact KM2-4A of the relay KM2 through wires. 、 、 、 、 、 ， ，

[0040] The electric actuator switch debugging method is shown in the following embodiment 1 and embodiment 2: the electric actuator switch debugging device has two debugging modes, mode one is to debug the electric actuator in the electric mode, and mode two is to debug the electric actuator in the manual mode, and the two modes can realize the switch debugging function of the electric actuator.

[0041] As shown in Figure 1 and Figure 2 , a nuclear power plant electric actuator electric switch debugging method, the method steps are as follows: ​​​​​​​

[0042] Step S1: connect the joint end of the nuclear power plant electric actuator control cable to be debugged to the wiring inlet end quick connector 10 of the switch debugging device;

[0043] Step S2: connect the wiring outlet end quick connector 5 of the switch debugging device to the joint end of the nuclear power plant electric actuator and the control system;

[0044] Step S3: turn the power switch 11 to the on position, select the mode selection switch 6 to the electric mode, the relay KM1 and the relay KM2 coil are powered, the normally open contacts KM1-1A, KM1-2A, KM1-3A, KM1-4A, KM2-1A, KM2-2A, KM2-3A, KM2-4A and the normally closed contacts KM1-1B, KM1-2B, KM1-3B, KM1-4B, KM2-1B, KM2-2B, KM2-3B are in the action state; the normally open contacts KM1-1A, KM1-2A, KM1-3A, KM1-4A, KM2-1A, KM2-2A, KM2-3A, KM2-4A change from the normally open state to the conduction state, and the normally closed contacts KM1-1B, KM1-2B, KM1-3B, KM1-4B, KM2-1B, KM2-2B, KM2-3B change from the normally closed state to the open state, at this time, the 8#, 9#, 13#, 17#, 21#, 30#, 31#, 32#, 33# ends of the wiring inlet end quick connector 10 and the 8 ， ， ， ， ， ， ， ， ， ， ， ， ​​​​​​​​​​​The # terminal outputs a negative voltage, thereby generating a signal feedback loop; the electric actuator of the nuclear power plant is connected through the 17# terminal of the quick connector 10 at the wiring entrance, the open stroke indicator light 9, the normally open contact KM1-3A of the relay KM1 and the 17# terminal of the quick connector 5 at the wiring exit. ， The # terminal outputs a negative voltage, thereby generating a signal feedback loop; the nuclear power plant electric actuator is connected through the 21# terminal of the quick connector 10 at the wiring entrance, the closing stroke indicator light 8, the normally open contact KM1-4A of the relay KM1 and the 21# terminal of the quick connector 5 at the wiring exit. ， The # terminal outputs a negative voltage, thus generating a signal feedback loop. At this time, the open limit indicator light 9 and the close travel indicator light 8 on the switch status box cover 7 inside the nuclear power plant electric actuator are dimmed, and the open torque indicator light 3 and the close torque indicator light 4 are lit.

[0045] Step S4: For the electric valve in stroke control mode, the electric actuator of the nuclear power plant is electrically or manually operated to the fully closed position, and the closing stroke switch of the electric head of the electric actuator of the nuclear power plant is adjusted. The closing stroke switch of the electric actuator of the nuclear power plant is connected to the closing stroke indicator light 3, the normally open contact KM1-4A of the relay KM1, and the quick connector 5 at the wiring outlet end through the quick connector 10 at the wiring inlet end. By observing that the closing stroke indicator light 8 on the device is on, it can be determined that the closing position setting of the electric actuator is completed; if the electric valve is in torque control mode, then at this time, the closing torque switch of the electric actuator of the nuclear power plant is connected to the closing torque indicator light 3, the normally open contact KM1-2A of the relay KM1, and the quick connector 5 at the wiring outlet end through the quick connector 10 at the wiring inlet end, and the closing torque indicator light 4 is dark;

[0046] Step S5: electrically or manually operate the valve of the nuclear power plant electric actuator to the fully open position, adjust the open stroke switch of the electric head of the nuclear power plant electric actuator, and connect the open stroke switch of the nuclear power plant electric actuator to the open stroke indicator light 9, the normally open contact KM1-1A of the relay KM1, and the quick connector 5 at the wiring outlet through the quick connector 10 at the wiring input end, and observe that the open stroke indicator light 9 on the device is turned on;

[0047] Step S6: For the opening adjustment of the electric actuator of the regulating electric valve, the joint end of the electric actuator of the nuclear power plant and the control system is connected through the 31 of the quick connector 5 at the wiring outlet end. ， The # terminal, the normally open contact KM2-2A of the relay KM2 and the 31# terminal of the quick connector 10 at the wiring entrance input positive voltage to the opening feedback module of the nuclear power plant electric actuator. The opening feedback module of the nuclear power plant electric actuator is connected to the 30# terminal of the quick connector 10 at the wiring entrance, the normally open contact KM2-4A of the relay KM2 and the 30# terminal of the quick connector 5 at the wiring exit. ，# terminal outputs negative voltage, thus supplying the opening degree feedback module of the nuclear power plant electric actuator, thus generating a loop. The opening degree feedback module of the nuclear power plant electric actuator inputs negative voltage through the 33# terminal of the wiring inlet end quick connector 10, the current display 2, the normally open contact KM2-3A of the relay KM2 and the 32# terminal of the wiring outlet end quick connector 5, thus generating a signal feedback loop. ， # terminal outputs negative voltage, thus supplying the opening degree feedback module of the nuclear power plant electric actuator, thus generating a loop. The opening degree feedback module of the nuclear power plant electric actuator inputs negative voltage through the 33# terminal of the wiring inlet end quick connector 10, the current display 2, the normally open contact KM2-3A of the relay KM2 and the 32# terminal of the wiring outlet end quick connector 5, thus generating a signal feedback loop. ， # terminal outputs negative voltage, thus supplying the opening degree feedback module of the nuclear power plant electric actuator, thus generating a loop. The opening degree feedback module of the nuclear power plant electric actuator inputs negative voltage through the 33# terminal of the wiring inlet end quick connector 10, the current display 2, the normally open contact KM2-3A of the relay KM2 and the 32# terminal of the wiring outlet end quick connector 5, thus generating a signal feedback loop.

[0048] Step S7: After the switch debugging of the nuclear power plant electric actuator is completed, the nuclear power plant electric actuator control cable connector is detached from the wiring inlet end quick connector 10, the connector of the nuclear power plant electric actuator and the control system is detached from the wiring outlet end quick connector 5, and the control system end control wiring is connected to the connector of the nuclear power plant electric actuator and the control system, thus completing the switch debugging of the nuclear power plant electric actuator.

[0049] As shown in Figure 1 and Figure 2 , a manual switch debugging method of a nuclear power plant electric actuator is provided, and the method comprises the following steps:

[0050] Step S1: connecting the nuclear power plant electric actuator control cable connector to be debugged to the wiring inlet end quick connector 10 of the switch debugging device, and not connecting the wiring outlet end quick connector 5;

[0051] Step S2: the power switch 11 is dialled to the open position, the mode selection switch 6 is selected to the manual mode, the relay KM1 and the relay KM2 coil lose power, the normally open contacts KM1-1A, KM1-2A, KM1-3A, KM1-4A, KM2-1A, KM2-2A, KM2-3A, KM2-4A and the normally closed contacts KM1-1B, KM1-2B, KM1-3B, KM1-4B, KM2-1B, KM2-2B, KM2-3B are all in the inaction state; at this time, the wiring inlet end quick connector 10 and the wiring outlet end quick connector 5 are in the non-conduction state. At this time, the DC power supply 13 in the box 12 outputs a positive voltage to the nuclear power plant electric actuator through the power switch 11, the normally closed contact KM2-1B of the relay KM2, the 8# end of the wiring inlet end quick connector 10; the nuclear power plant electric actuator is connected with the DC power supply 13 through the 9# terminal of the wiring inlet end quick connector 10, the open torque indicating lamp 3, and the normally closed contact KM1-1B of the relay KM1, thereby generating a signal feedback loop; the nuclear power plant electric actuator is connected with the DC power supply 13 through the 13# terminal of the wiring inlet end quick connector 10, the closing torque indicating lamp 4, and the normally closed contact KM1-2B of the relay KM1, thereby generating a signal feedback loop; the nuclear power plant electric actuator is connected with the DC power supply 13 through the 17# terminal of the wiring inlet end quick connector 10, the open stroke indicating lamp 9, and the normally closed contact KM1-3B of the relay KM1, thereby generating a signal feedback loop; the nuclear power plant electric actuator is connected with the DC power supply 13 through the 21# terminal of the wiring inlet end quick connector 10, the closing stroke indicating lamp 8, and the normally closed contact KM1-4B of the relay KM1, thereby generating a signal feedback loop. According to the open limit indicating lamp 9 and the closing stroke indicating lamp 8 on the box cover 7 of the internal switch state of the nuclear power plant electric actuator, the open limit indicating lamp 9 and the closing stroke indicating lamp 8 are in the dark-off state; the open torque indicating lamp 3 and the closing torque indicating lamp 4 are in the bright-on state;

[0052] Step S3: the electric valve in the stroke control mode, the nuclear power plant electric actuator is manually operated to the full closing position, the closing stroke switch of the nuclear power plant electric actuator is connected with the closing stroke indicating lamp 8, the normally open contact KM1-4B of the relay KM1, and the negative electrode of the DC power supply 13 through the wiring inlet end quick connector 10, the closing stroke switch of the electric head of the nuclear power plant electric actuator is adjusted, and the closing stroke indicating lamp 8 on the device is observed to be bright-on, which can determine that the closing position setting of the electric actuator is completed; if the electric valve is in the torque control mode, the closing torque switch of the nuclear power plant electric actuator is connected with the closing torque indicating lamp 4, the normally open contact KM1-2B of the relay KM1, and the negative electrode of the DC power supply 13 through the wiring inlet end quick connector 10 at this time, and the closing torque indicating lamp 4 is dark-off at this time;

[0053] Step S4: the electric actuator is manually operated to open the valve to full open position, the opening stroke switch of the electric actuator is adjusted, the closing stroke switch of the electric actuator of the nuclear power plant is connected with the opening stroke indicator 9, the normally open contact KM1-3B of the relay KM1 and the negative pole of the DC power supply 13 through the wiring inlet end quick connector 10, and the opening stroke indicator 9 on the device is observed to be bright;

[0054] Step S5: for the opening degree debugging of the regulating type electric actuator, the opening degree feedback module of the electric actuator of the nuclear power plant is connected with the normally closed contact KM2-2B, the normally closed contact KM2-3B of the relay KM2 and the current display 2 through the wiring inlet end quick connector 10, and the positive and negative poles of the current display 2 are connected with the positive and negative poles of the DC power supply 13. The current display on the current display 2 is observed, wherein when the valve opening degree is 0, the current display is 4mA, and when the valve opening degree is 100%, the current display is 20mA;

[0055] Step S6: after the debugging is completed, the control cable connector of the electric actuator of the nuclear power plant is detached from the opening wiring inlet end quick connector 10, the control system end control wiring is connected to the electric actuator, and the opening and closing debugging of the electric actuator of the nuclear power plant is completed.

[0056] The above describes the present application in detail in combination with the drawings and embodiments, and the above embodiments are only the optimal embodiments of the present application, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application.

Claims

1. A switching debugging device for an electric actuator of an electric valve in a nuclear power plant, characterized by: The device comprises a box hinge (1), a current display (2), an opening torque indicator light (3), a closing torque indicator light (4), a quick connector at the wiring outlet end (5), a mode selection switch (6), a box cover (7), a closing stroke indicator light (8), an opening stroke indicator light (9), a quick connector at the wiring inlet end (10), a power switch (11), a box body (12), a DC power supply (13) and a plurality of relays. The box cover (7) is connected to the box body (12) through the box hinge (1). The box body (12) is provided with a DC power supply (13) and a relay. The box cover (7) is provided with an opening stroke indicator light (9), a closing stroke indicator light (8), an opening torque indicator light (3), a closing torque indicator light (4), a current display (2), a power switch (11) and a mode selection switch (6); the opening stroke indicator light (9), the closing stroke indicator light (8), the opening torque indicator light (3), the closing torque indicator light (4), the current display (2), the power switch (11), the mode selection switch (6), the wiring outlet quick connector (5), and the wiring inlet quick connector (10) are all connected to a relay; the relay in the box (12) includes a relay KM1 and a relay KM2, and the relays include a normally open contact and a normally closed contact; after the relays KM1 and KM2 are connected in parallel, they are connected in series with one end of the mode selection switch (6) through a wire; after the relays KM1 and KM2 are connected in parallel, they are connected in series with one end of the mode selection switch (6) through a wire; the other end of the mode selection switch (6) is connected to the power switch (11) and the current display (2) through a wire; the relay KM1 includes normally open contacts KM1-1A, KM1-2A, KM1-3A, KM1-4A, and normally closed contacts KM1-1B, KM1-2B, KM1-3B, KM1-4B; one end of the normally open contact KM1-1A is connected to the 9 of the wiring outlet quick connector (5) through a wire. ’ The other end of the normally open contact KM1-1A is connected to one end of the normally closed contact KM1-1B and one end of the opening torque indicator light (3) through a wire. The other end of the opening torque indicator light (3) is connected to the 9# end of the quick connector (10) at the wiring entrance through a wire. One end of the normally open contact KM1-2A is connected to the 13# end of the quick connector (5) at the wiring exit through a wire. ， The other end of the normally open contact KM1-2A is connected to one end of the normally closed contact KM1-2B and one end of the torque indicator light (4) through a wire. The other end of the torque indicator light (4) is connected to the 13# end of the quick connector (10) at the wiring entrance through a wire. One end of the normally open contact KM1-3A is connected to the 17# end of the quick connector (5) at the wiring exit through a wire. ’ # end, the other end of the normally open contact KM1-3A is connected to one end of the normally closed contact KM1-3B and one end of the open stroke indicator light (9) through a wire, and the other end of the open stroke indicator light (9) is connected to the 17 end of the quick connector (10) at the wiring entrance through a wire; one end of the normally open contact KM1-4A is connected to the 21 end of the quick connector (5) at the wiring exit through a wire. ’ # end is connected, the other end of the normally open contact KM1-4A is connected to one end of the normally closed contact KM1-4B through a wire, and the other end of the off travel indicator light (8) is connected to the 21 end of the quick connector (10) at the wiring entry end through a wire.

2. The switch debugging device for an electric actuator of an electric valve in a nuclear power plant according to claim 1, characterized in that: The opening stroke indicator light (9), the closing stroke indicator light (8), the opening torque indicator light (3), and the closing torque indicator light (4) are mounted on one side of the box cover (7).

3. The switch debugging device for an electric actuator of an electric valve in a nuclear power plant according to claim 2, characterized in that: The opening stroke indicator light (9), the closing stroke indicator light (8), the opening torque indicator light (3), and the closing torque indicator light (4) are symmetrically distributed on both sides of the current display (2).

4. A switching debugging device for an electric actuator of an electric valve in a nuclear power plant according to any one of claims 1 to 3, characterized in that: The power switch (11) and the mode selection switch (6) are mounted on the other side of the box cover (7).

5. The switch debugging device for an electric actuator of an electric valve in a nuclear power plant according to claim 4, characterized in that: The wiring inlet quick connector (10) and the wiring outlet quick connector (5) are respectively fixedly mounted on the two side walls of the box (12).

6. The switch debugging device for an electric actuator of an electric valve in a nuclear power plant according to claim 5, characterized in that: The wiring inlet quick connector (10) and the wiring outlet quick connector (5) are connected to the relay in the box (12) via cables.

7. The switch debugging device for an electric actuator of an electric valve in a nuclear power plant according to claim 6, characterized in that: The power switch (11) is also connected to a DC power supply (13), and the DC power supply (13) is respectively connected to the relay KM1 and the relay KM2 connected in parallel, the current display (2), and each normally open contact and normally closed contact of the relay KM1 and the relay KM2.

8. A method for debugging an electric switch of an electric valve actuator in a nuclear power plant using a switch debugging device according to any one of claims 1 to 7, characterized in that: The steps of this method are as follows: Step S1: Connect the control cable connector of the electric actuator of the nuclear power plant to be debugged to the quick connector (10) at the wiring inlet end of the switch debugging device; Step S2: Connect the quick connector (5) at the wiring outlet of the switch debugging device to the connector of the nuclear power plant electric actuator and the control system; Step S3: Turn the power switch (11) to the on position and the mode selection switch (6) to the electric debugging mode. At this time, the opening travel indicator light (9) and the closing travel indicator light (8) are dimmed; at the same time, the opening torque indicator light (3) and the closing torque indicator light (4) are lit. Step S4: For the electric valve in stroke control mode, the electric actuator of the nuclear power plant is electrically or manually operated to the fully closed position, and the closing stroke switch of the electric head of the electric actuator of the nuclear power plant is adjusted. At this time, the closing stroke indicator light (8) on the device is observed to be on, which can confirm that the electric actuator closing position setting is completed; if the electric valve is in torque control mode, the closing torque indicator light (4) is dark; Step S5: electrically or manually operate the valve of the nuclear power plant electric actuator to the fully open position, adjust the open stroke switch of the electric head of the nuclear power plant electric actuator, and observe whether the open stroke indicator light (9) on the device is on; Step S6: For the opening adjustment of the electric actuator of the regulating electric valve, observe the current displayed on the current display (2); wherein, when the valve opening of the electric valve is 0%, the current is displayed as 4mA, and when the valve opening of the electric valve is displayed as 100%, the current is displayed as 20mA; Step S7: After the switch commissioning of the nuclear power plant electric actuator is completed, the quick connector (10) at the wiring inlet and the quick connector (5) at the wiring outlet are disconnected to complete the switch commissioning of the nuclear power plant electric actuator.

9. A method for manually debugging the switch of an electric actuator of a nuclear power plant electric valve using a switch debugging device according to any one of claims 1 to 7, characterized in that: The steps of this method are as follows: Step S1: Connect the control cable connector of the electric actuator of the nuclear power plant to be debugged to the quick connector (10) at the wiring inlet end of the switch debugging device, and do not connect the quick connector (5) at the wiring outlet end; Step S2: Turn the power switch (11) to the on position, and select the mode selection switch (6) to the manual debugging mode. At this time, the opening stroke indicator light (9) and the closing stroke indicator light (8) are in a dark state, and the opening torque indicator light (3) and the closing torque indicator light (4) are in a bright on state; Step S3: For the electric valve in stroke control mode, manually operate the valve of the nuclear power plant electric actuator to the fully closed position, adjust the electric head closing stroke switch of the nuclear power plant electric actuator, and observe that the closing stroke indicator light (8) on the device is on, which can confirm that the electric actuator closing position setting is completed; if the electric valve is in torque control mode, the closing torque indicator light (4) is off at this time; Step S4: Manually operate the electric actuator to the fully open position, adjust the open stroke switch of the electric head of the electric actuator, and observe that the open stroke indicator light (9) on the device is on; Step S5: For the opening adjustment of the regulating electric actuator, observe the current displayed on the current display (2). When the valve opening is 0%, the current is displayed as 4 mA. When the valve opening is displayed as 100%, the current is displayed as 20 mA. Step S6: After the debugging is completed, the quick connector (10) at the wiring inlet is disconnected to complete the switch debugging of the nuclear power plant electric actuator.

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