Debugging and diagnosing control device for electric switch valve

Abstract

The invention discloses an electric switch valve debugging and diagnosis control device, and relates to the technical field of electric valve debugging and diagnosis. The device comprises an upper computer, a lower computer and an electric valve control driving module, the lower computer comprises a panel and a data acquisition control panel connected with the upper computer, and the panel is provided with an external interface and a button switch which are respectively connected with the data acquisition control panel. The external interfaces comprise a valve state input interface, a valve opening / stroke input interface, a valve rod thrust input interface, a valve rod torque input interface, an electric valve actuator current input interface, an electric valve actuator voltage input interface and a control instruction output interface which are connected with one another and cooperate with one another; only one group of personnel is needed to achieve on-site operation of the electric switch valve, manpower input is reduced, the construction period is shortened, manual communication is not needed any more, the risk of communication failure is completely eradicated, safety and on-site work completion speed can be improved, and radiation to the personnel is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of electric valve debugging and diagnosis, and in particular relates to an electric switch valve debugging and diagnosis control device. Background Art

[0002] In process systems, electric on-off valves must be debugged (i.e., measuring, recording, and adjusting parameters such as switching time, valve travel, travel switch action / reset value, and torque switch action / reset value) after installation or maintenance. Only after qualified debugging (i.e., the parameters of the electric on-off valve meet the design requirements) can they be put into operation in the process system. During the debugging process, the electric on-off valve needs to be frequently controlled and driven to measure and adjust parameters. In addition, when diagnosing the parameters of the electric on-off valve, it is also necessary to control and drive the electric on-off valve to move the full stroke according to diagnostic needs, and collect relevant data during the operation of the electric on-off valve. The collected data can then be used to analyze and calculate the parameters of the electric on-off valve. Therefore, whether during the debugging process or the diagnosis process of the electric on-off valve, the electric on-off valve must be controlled and driven to move the full stroke as required.

[0003] Currently, during debugging / diagnosis, electric on / off valves must and can only be operated remotely in the electric on / off valve MCC (Motor Control Center) cabinet or by a DCS (Distributed Control System) operator / engineer station. This requires a team of personnel to measure, record, and adjust the parameters of the electric on / off valve at the location of the electric on / off valve during the debugging / diagnosis process, and another team of personnel to operate the electric on / off valve at the MCC cabinet or DCS side according to the instructions (such as valve opening instructions, valve closing instructions, and stop instructions) from the local personnel (i.e., the former team of personnel). However, in nuclear power plants, electric on-off valves, MMC cabinets, or DCS systems are located in separate buildings, which are far apart and separated by multiple rooms. This means that the two groups of personnel can only communicate via wired telephones. Consequently, each commissioning / diagnosis of an electric on-off valve requires the temporary installation of a wired telephone, which must pass through multiple rooms. This results in a high labor cost, a long time required to complete the commissioning / diagnosis of a single electric on-off valve, and the risk of damage to the valve or even burnout of the motor due to communication failures between the two locations. Furthermore, when the MCC cabinet or upstream power supply is reversed for maintenance (i.e., the MCC cabinet is unavailable), the operation of the electric on-off valve is restricted, and there is also the problem of being unable to conduct on-site commissioning / diagnosis of the electric on-off valve. Summary of the Invention

[0004] The purpose of the present invention is to provide an electric switch valve debugging and diagnosis control device to solve the problems of existing electric switch valve debugging / diagnosis solutions when applied to nuclear power plants, such as high manpower investment, long time required, and easy damage to the valve or even burning of the motor due to communication failure between personnel in two places.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The present invention provides a debugging and diagnostic control device for an electric switch valve, comprising a host computer, a slave computer, and an electric valve control drive module, wherein the slave computer comprises a panel and a data acquisition control board connected to the host computer, and the panel is provided with external interfaces and button switches respectively connected to the data acquisition control board, wherein the external interfaces comprise a valve state input interface for connecting to a stroke / torque switch of the electric switch valve, a valve opening / stroke input interface for connecting to a valve opening / stroke sensor of the electric switch valve, a valve stem thrust input interface for connecting to a thrust sensor of the electric switch valve, a valve stem torque input interface for connecting to a torque sensor of the electric switch valve, a current input interface of an electric valve actuator for connecting to a current transformer in the electric valve control drive module, a voltage input interface of an electric valve actuator for connecting to a voltage sampling point in the electric valve control drive module, and a control instruction output interface for connecting to the electric valve control drive module;

[0007] The host computer is used to generate soft commands for debugging / diagnosing the electric switch valve;

[0008] Push button switch, used to generate hard commands for debugging / diagnosing electric on / off valves;

[0009] The data acquisition control board is used to send control instructions for debugging / diagnosing the electric switch valve to the electric valve control drive module according to soft commands or hard commands;

[0010] The electric valve control drive module is used to execute control instructions and transmit the three-phase current sampling signal and the three-phase voltage sampling signal of the three-phase AC power used to power the electric switch valve to the data acquisition control board;

[0011] The data acquisition control board is also used to collect and transmit to the upper computer the valve status, valve opening / stroke, valve stem thrust, valve stem torque, the electric valve actuator current size based on the three-phase current sampling signal and the electric valve actuator voltage size based on the three-phase voltage sampling signal input through the external interface, as well as the control instructions that need to be output through the external interface;

[0012] The upper computer is also used to display and analyze the uploaded data from the lower computer in real time to obtain the debugging / diagnostic analysis results of the electric switch valve.

[0013] Based on the above invention, a new debugging / diagnostic solution for electric switch valves in nuclear power plants is provided, which includes a host computer, a slave computer and an electric valve control drive module. The slave computer includes a panel and a data acquisition control board connected to the host computer. The panel is provided with external interfaces and button switches respectively connected to the data acquisition control board. The external interfaces include a valve state input interface, a valve opening / stroke input interface, a valve stem thrust input interface, a valve stem torque input interface, an electric valve actuator current input interface, an electric valve actuator voltage input interface and a control command output interface. Through their connection relationship and mutual cooperation, signals for debugging can be generated remotely through the host computer or on-site through the button switch. / diagnose commands for electric switching valves, and complete control execution through the electric valve control drive module, and also collect and upload valve status, valve opening / stroke, valve stem thrust, valve stem torque, electric valve actuator current and electric valve actuator voltage and control instructions, so as to display and analyze the uploaded data in real time and obtain the debugging / diagnostic analysis results of the electric switching valve. In this way, only one group of personnel is needed to realize on-site operation of the electric switching valve, reducing manpower input, shortening the construction period, and eliminating the need for manual communication, completely eliminating the risk of communication failure, thereby improving safety and the speed of completing on-site work, reducing personnel radiation exposure, and facilitating practical application and promotion.

[0014] In one possible design, the button switch includes a point-operated valve-opening button switch for generating a valve-opening hard command and an automatic reset button when pressed, a valve-opening button switch for generating a valve-opening hard command and a self-locking holding button when pressed, a point-operated valve-closing button switch for generating a valve-closing hard command and an automatic reset button when pressed, a valve-closing button switch for generating a valve-closing hard command and a self-locking holding button when pressed, a control switching button switch for switching between a remote control hard command and a local control hard command and a self-locking holding button when pressed, a phase sequence adjustment button switch for generating a phase sequence adjustment hard command and a self-locking holding button when pressed, and a power on / off hard command and a self-locking holding button when pressed. The power on / off button switch of the button and / or the emergency stop button switch which is used to generate an emergency stop hard command when pressed and is a self-locking holding button, wherein the remote control hard command is used to indicate that only the opening / closing valve soft command from the host computer is accepted, the local control hard command is used to indicate that only the opening / closing valve hard command from the button switch is accepted, the phase sequence adjustment hard command is used to instruct the electric valve control drive module to adjust the phase sequence of the three-phase AC power input to the electric switching valve, the power on / off hard command is used to instruct the electric valve control drive module to turn on / off the three-phase AC power input to the electric switching valve, and the emergency stop hard command is used to indicate the cancellation and locking of the opening / closing valve control instruction.

[0015] In one possible design, the data acquisition control board is also used to cancel and lock the opening / closing valve control instructions when an alarm condition is determined to occur until the alarm condition is found to disappear, where the alarm conditions include overcurrent, reversal, abnormality, phase loss, three-phase imbalance, and / or emergency shutdown.

[0016] In one possible design, determining that an alarm condition has occurred includes:

[0017] According to the current size of the electric valve actuator, if the current value of any phase, any two phases or three phases is found to be greater than the preset overcurrent protection current threshold, it is determined that an overcurrent situation has occurred;

[0018] According to the valve status, if it is found that the valve feedback status is inconsistent with the output open / close valve control instruction, it is determined that a reversal situation has occurred; or according to the valve opening / stroke, if it is found that the valve opening / stroke change trend is inconsistent with the output open / close valve control instruction, it is determined that a reversal situation has occurred;

[0019] According to the valve status, if the valve feedback status is found to be abnormal, it is determined that an abnormal situation has occurred;

[0020] According to the current size of the electric valve actuator when the three-phase AC power is turned on, if any phase current value is found to be zero, it is determined that a phase loss occurs;

[0021] According to the current size of the electric valve actuator, if the imbalance of the three-phase current value is found to be greater than the preset imbalance threshold, it is determined that a three-phase imbalance occurs;

[0022] According to the phase sequence of the three-phase AC power supply input to the electric valve control drive module, if the phase sequence of the three-phase AC power supply is found to be reversed, it is determined that a reverse sequence situation occurs;

[0023] When an emergency stop command is received, it is determined that an emergency stop situation occurs, wherein the emergency stop command is used to instruct to cancel and lock the issuance of an open / close valve control instruction.

[0024] In one possible design, the lower computer also includes an indicator light and / or an alarm connected to the data acquisition control board, wherein the indicator light includes a valve opening position indicator light that lights up when the electric switch valve is found to be in the open position according to the valve status, a valve closing position indicator light that lights up when the electric switch valve is found to be in the closed position according to the valve status, and / or a phase sequence abnormality indicator light that lights up when the phase sequence of the three-phase AC power supply input to the electric valve control drive module is found to be reversed, and the alarm is used to trigger an alarm action when it is determined that an overcurrent condition, reversal condition, abnormal condition, phase loss condition, three-phase imbalance condition and / or emergency shutdown condition occurs.

[0025] In one possible design, the lower computer also includes a rechargeable battery, and the button switch includes a power switch, one end of the power switch is connected to the output end of the rechargeable battery, and the other end of the power switch is connected to the power supply end of the data acquisition control board.

[0026] In one possible design, the uploaded data from the lower computer is analyzed and processed to obtain the debugging / diagnostic analysis results of the electric on / off valve, including:

[0027] According to the three-phase current and three-phase voltage from the lower computer, the active power and / or power factor of the electric switch valve is calculated, displayed and stored;

[0028] And / or, based on the uploaded data from the lower computer, the performance parameters of the electric switching valve are automatically diagnosed and a parameter report and / or characteristic curve of the performance parameters are generated, wherein the performance parameters include valve opening / stroke, switching time, starting current, operating current, three-phase current imbalance, seating force, pull-out force, maximum valve stem friction, minimum valve stem friction, average valve stem friction, torque switch action value, torque switch reset value, current and active power when the torque switch is acted / reset, travel switch action value and / or travel switch reset value.

[0029] In a possible design, based on the uploaded data from the lower computer, the performance parameters of the electric switch valve are automatically diagnosed and obtained, including the following steps S101 to S111:

[0030] S101. According to the valve status from the lower computer, determine whether the electric switch valve is closed. If so, execute step S105, otherwise execute step S102;

[0031] S102. After waiting for the first preset time, a valve closing soft command is issued to the data acquisition control board, and then step S103 is executed;

[0032] S103. Based on the valve status from the lower computer, it is determined again whether the electric switch valve is closed. If so, step S104 is executed. Otherwise, a soft command to close the valve is sent to the data acquisition control board, and then the execution returns to step S103.

[0033] S104 sends a reset valve closing soft command to the data acquisition control board, and then returns to step S105;

[0034] S105. After waiting for the second preset time, a valve opening soft command is issued to the data acquisition control board, and then step S106 is executed;

[0035] S106. According to the valve status from the lower computer, determine whether the electric switch valve is fully open. If so, execute step S107. Otherwise, continue to send a valve opening soft command to the data acquisition control board, and then return to step S106.

[0036] S107. Send a reset valve opening soft command to the data acquisition control board, and then return to step S108;

[0037] S108. After waiting for the third preset time, a valve closing soft command is issued to the data acquisition control board, and then step S109 is executed;

[0038] S109. Based on the valve status from the lower computer, it is determined again whether the electric switch valve is fully closed. If so, step S110 is executed. Otherwise, a soft command to close the valve is sent to the data acquisition control board, and then the execution returns to step S109.

[0039] S110 sends a reset valve closing soft command to the data acquisition control board, and then returns to step S111;

[0040] S111. Based on the uploaded data received from the lower computer during the execution of steps S105 to S110, the performance parameters of the electric switching valve are analyzed and calculated, wherein the performance parameters include valve opening / stroke, switching time, starting current, operating current, three-phase current imbalance, seating force, pull-out force, maximum valve stem friction, minimum valve stem friction, average valve stem friction, torque switch action value, torque switch reset value, current and active power when the torque switch is acted / reset, travel switch action value and / or travel switch reset value.

[0041] In one possible design, the electric valve control drive module includes a three-phase AC input interface, a controllable power switch, a phase sequence adjustment unit, and a three-phase AC output interface electrically connected in sequence, wherein the three-phase AC input interface is used to connect to an external three-phase AC power supply, and the three-phase AC output interface is used to connect to the three-phase AC connector of the electric switch valve;

[0042] The electric valve control drive module also includes a three-phase voltage output interface, a three-phase current transformer, a three-phase current output interface and a control command input interface, wherein the three-phase voltage output interface is connected to the three-phase voltage sampling point between the three-phase AC input interface and the controllable power switch, and the current sensing hole of the three-phase current transformer is passed through a three-phase AC power cable between the three-phase AC input interface and the controllable power switch, between the controllable power switch and the phase sequence adjustment unit, or between the phase sequence adjustment unit and the three-phase AC output interface. The three-phase current output interface is connected to the output end of the three-phase current transformer, and the control command input interface is respectively connected to the controlled end of the controllable power switch and the controlled end of the phase sequence adjustment unit.

[0043] In one possible design, the electric valve control drive module includes a connector socket, a three-phase voltage output port, a three-phase current transformer, a three-phase current output port, a control command input port, and a connector plug, wherein the connector socket is used to connect to the three-phase AC power supply and the electric valve switch control circuit in the electric valve MCC cabinet respectively, the connector plug is used to connect to the three-phase AC power connector of the electric valve actuator, and the connector socket is connected to the connector plug;

[0044] The three-phase voltage output port is respectively connected to the voltage input interface of the electric valve actuator and the three-phase voltage sampling point between the connector socket and the three-phase AC output port. The current sensing hole of the three-phase current transformer is passed through a three-phase AC cable between the connector socket and the connector plug. The three-phase current output port is respectively connected to the current input interface of the electric valve actuator and the output end of the three-phase current transformer. The control command input port is connected to the electric valve switch control circuit in the electric valve MCC cabinet through the connector socket.

[0045] Beneficial effects of the above scheme:

[0046] (1) The present invention provides a new debugging / diagnostic solution for electric switch valves in nuclear power plants, which includes a host computer, a slave computer and an electric valve control drive module. The slave computer includes a panel and a data acquisition control board connected to the host computer. The panel is provided with external interfaces and button switches respectively connected to the data acquisition control board. The external interfaces include a valve state input interface, a valve opening / stroke input interface, a valve stem thrust input interface, a valve stem torque input interface, an electric valve actuator current input interface, an electric valve actuator voltage input interface and a control instruction output interface. Through their connection relationship and mutual cooperation, the control can be generated remotely through the host computer or on-site through the button switch. Generates commands for debugging / diagnosing electric on / off valves, and completes control execution through the electric valve control drive module. It also collects and uploads valve status, valve opening / stroke, valve stem thrust, valve stem torque, electric valve actuator current, electric valve actuator voltage, and control instructions, so as to display and analyze the uploaded data in real time and obtain debugging / diagnostic analysis results of the electric on / off valve. In this way, only one team of personnel is needed to realize on-site operation of the electric on / off valve, reducing manpower input and shortening construction period. In addition, manual communication is no longer required, and the risk of communication failure is completely eliminated, thereby improving safety and speeding up on-site work completion, and reducing personnel radiation exposure.

[0047] (2) Compared with the existing electric switch valve debugging / diagnosis solution, it has the advantage of portability: the device is light in weight, small in size, and has few accessories, making it easy to transport and carry on site;

[0048] (3) Compared with the existing electric switch valve debugging / diagnosis scheme, it has the advantage of not requiring a dedicated working power supply: that is, the device has a built-in rechargeable battery, and no additional working power supply is required when in use, which reduces the workload on site and avoids the risks of providing working power and using the device. At the same time, it reduces the weight of the device and reduces the on-site handling workload of the staff;

[0049] (4) Compared with the existing electric switch valve debugging / diagnosis scheme, it has the advantages of simple and quick installation: that is, it uses laser ranging technology to measure the valve stroke, which is more convenient to install than the pull-wire sensor and has high measurement accuracy; the device has its own three-phase current and voltage measurement sensors, and no other instruments are required when measuring the three-phase current and voltage;

[0050] (5) Compared with the existing electric switch valve debugging / diagnosis scheme, it has the functions of abnormal protection, overcurrent protection, reverse protection, phase loss protection, three-phase unbalance protection and manual emergency stop protection, and issues the valve opening / closing command by resetting and locking after the protection action, and automatically cuts off the power supply at the same time, and issues the corresponding sound and light alarm, which improves the safety of on-site work and eliminates the risk of damage to the electric switch valve due to failure to cut off the power supply in the first time due to overcurrent, abnormality, reverse and phase loss of the valve during debugging and diagnosis;

[0051] (6) Compared with the existing electric switch valve debugging / diagnosis scheme, it also has the electric switch valve automatic diagnosis function, which is convenient for practical application and promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0053] Figure 1 This is a structural diagram of the debugging, diagnosis and control device for an electric switching valve provided in an embodiment of the present invention.

[0054] Figure 2 A schematic diagram of the specific structure of the lower computer in the electric switch valve debugging and diagnosis control device provided by an embodiment of the present invention.

[0055] Figure 3 This is a schematic diagram of the specific structure of the first electric valve control drive module in the electric switch valve debugging and diagnosis control device provided by an embodiment of the present invention.

[0056] Figure 4This is a schematic diagram of the specific structure of the second electric valve control drive module in the electric switch valve debugging and diagnosis control device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0057] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly introduced below in conjunction with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structures of the drawings is only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these embodiments without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0058] It should be understood that although the terms first, second, etc. may be used herein to describe various objects, these objects should not be limited by these terms. These terms are merely used to distinguish one object from another. For example, a first object can be referred to as a second object, and similarly, a second object can be referred to as a first object without departing from the scope of the exemplary embodiments of the present invention.

[0059] It should be understood that the term "and / or" that may appear in this document is merely a description of the association relationship between associated objects, indicating that there may be three relationships. For example, A and / or B can indicate three situations: A exists alone, B exists alone, or A and B exist at the same time. For another example, A, B and / or C can indicate the existence of any one of A, B and C or any combination of them. The term " / and" that may appear in this document describes another type of association object relationship, indicating that there may be two relationships. For example, A / and B can indicate two situations: A exists alone or A and B exist at the same time. In addition, the character " / " that may appear in this document generally indicates that the previous and next associated objects are in an "or" relationship.

[0060] Example

[0061] like Figures 1 to 3As shown, the electric switch valve debugging and diagnosis control device provided in this embodiment includes but is not limited to a host computer, a slave computer and an electric valve control drive module, wherein the slave computer includes but is not limited to a panel and a data acquisition control board connected to the host computer, and the panel is arranged with but is not limited to external interfaces and button switches respectively connected to the data acquisition control board, and the external interfaces include but are not limited to a valve state input interface for connecting to the stroke / torque switch of the electric switch valve, a valve opening / stroke input interface for connecting to the valve opening / stroke sensor of the electric switch valve, a valve stem thrust input interface for connecting to the thrust sensor of the electric switch valve, a valve stem torque input interface for connecting to the torque sensor of the electric switch valve, an electric valve actuator current input interface for connecting to the current transformer in the electric valve control drive module, an electric valve actuator voltage input interface for connecting to the voltage sampling point in the electric valve control drive module, and a control instruction output interface for connecting to the electric valve control drive module, etc. The valve state input interface is used to input the valve state conventionally obtained by the stroke / torque switch (for example, the valve core displacement reflecting the valve state is measured by a laser displacement sensor arranged on the stroke / torque switch, etc.). The valve opening / stroke input interface is used to input the valve opening and / or stroke (for example, linear stroke and / or angular stroke, etc.) conventionally obtained by the valve opening / stroke sensor. The valve stem thrust input interface is used to input the valve stem thrust conventionally obtained by the thrust sensor. The valve stem torque input interface is used to input the valve stem torque conventionally obtained by the torque sensor. The electric valve actuator current input interface is used to input the electric valve actuator current sampling signal conventionally sensed by the current transformer (which specifically reflects the current signal of the three-phase alternating current used to supply the electric switching valve). The electric valve actuator voltage input interface is used to input the electric valve actuator voltage sampling signal conventionally sampled by the voltage sampling point (which specifically reflects the voltage signal of the three-phase alternating current used to supply the electric switching valve). The control instruction output interface is used to output control instructions to be executed, such as valve opening control instructions, valve closing control instructions, phase sequence adjustment control instructions and / or power on / off control instructions, to the electric valve control drive module.

[0062] The host computer is configured to generate soft commands for debugging / diagnosing the electric on / off valve. The host computer may be, but is not limited to, a tablet computer, laptop computer, or industrial computer installed with control, monitoring, or diagnostic software for debugging / diagnosing the electric on / off valve. The host computer and the slave computer (specifically, the data acquisition control board) may be connected via, but is not limited to, a wired communication cable or wireless communication to facilitate data transmission between the host and slave computers during debugging / diagnosing the electric on / off valve. The soft command refers to a command generated by software and such as a valve opening command and / or a valve closing command, which can be automatically generated by the software or manually generated by the operator by touching the human-computer interaction interface of the software; in addition, the soft command can also include but is not limited to a phase sequence adjustment soft command, a power on / off soft command and / or an emergency stop soft command, etc., wherein the phase sequence adjustment soft command is used to instruct the electric valve control drive module to adjust the phase sequence of the three-phase alternating current supplied to the electric switching valve, the power on / off soft command is used to instruct the electric valve control drive module to turn on / off the three-phase alternating current supplied to the electric switching valve, and the emergency stop soft command is used to instruct the cancellation and locking of the opening / closing valve control instruction.

[0063] The button switch is used to generate hard commands for debugging / diagnosing the electric switch valve. The hard command refers to a command generated by hardware and such as a valve opening command and / or a valve closing command, which is mainly generated manually by the operator by pressing the corresponding button switch; in addition, the hard command may also include, but is not limited to, a remote control hard command, a local control hard command, a phase sequence adjustment hard command, a power on / off hard command and / or an emergency stop hard command. Specifically, the button switch includes, but is not limited to, a point-operated valve opening button switch for pressing to generate a valve opening hard command and an automatic reset button (which will automatically pop up after being released and cancel the generation of the valve opening hard command), a valve opening button switch for pressing to generate a valve opening hard command and a self-locking holding button (which will not automatically pop up after being released and will pop up after being pressed again and cancel the generation of the valve opening hard command), a point-operated valve closing button switch for pressing to generate a valve closing hard command and an automatic reset button (which will automatically pop up after being released and cancel the generation of the valve closing hard command), and a point-operated valve closing button switch for pressing to generate a valve closing hard command and an automatic reset button (which will automatically pop up after being released and cancel the generation of the valve closing hard command). A valve closing button switch that generates a valve closing hard command and is a self-locking holding button (it will not automatically pop up after being released, and will not pop up until it is pressed again, and the generation of the valve closing hard command is canceled); a control switching button switch that is used to switch between a remote control hard command and a local control hard command and is a self-locking holding button (it can generate the remote control hard command after being pressed, and will not automatically pop up after being released, and will not pop up until it is pressed again, and will generate the local control hard command); a phase sequence adjustment button switch that is used to generate a phase sequence adjustment hard command and is a self-locking holding button (it will not pop up after being released); It will automatically pop up until it is pressed again, and the generation of the phase sequence adjustment hard command will be canceled), a power on / off button switch for generating a power on / off hard command and a self-locking holding button (which can generate a power on hard command after being pressed, and will not automatically pop up after being released, and will not pop up until it is pressed again, and will generate a power off hard command) and / or an emergency stop button switch for generating an emergency stop hard command and a self-locking holding button (which will not automatically pop up after being released, and will not pop up until it is pressed again, and will cancel the generation of the emergency stop hard command), etc., wherein, The remote control hard command is used to indicate that only the on / off valve soft command from the host computer is accepted, the local control hard command is used to indicate that only the on / off valve hard command from the button switch is accepted, the phase sequence adjustment hard command is used to indicate that the electric valve control drive module adjusts the phase sequence of the three-phase AC power input to the electric switching valve, the power on / off hard command is used to indicate that the electric valve control drive module turns on / off the three-phase AC power input to the electric switching valve, and the emergency stop hard command is used to indicate the cancellation and locking of the on / off valve control instruction.

[0064] The data acquisition control board is configured to send control instructions for debugging / diagnosing the electric on / off valve to the electric valve control drive module based on the soft command or the hard command. The control instructions specifically include, but are not limited to, valve opening control instructions, valve closing control instructions, phase sequence adjustment control instructions, and / or power on / off control instructions.

[0065] The electric valve control drive module is configured to execute the control instructions and transmit three-phase current sampling signals and three-phase voltage sampling signals of the three-phase alternating current (AC) power supplied to the electric switch valve to the data acquisition control board. The three-phase current sampling signals are obtained by conventional sensing by the current transformer and transmitted by the electric valve actuator current input interface, and are used to reflect the current magnitude of the three-phase AC power. The three-phase voltage sampling signals are obtained by conventional sampling at the voltage sampling points and transmitted by the electric valve actuator voltage input interface, and are used to reflect the voltage magnitude of the three-phase AC power.

[0066] The data acquisition control board is also used to collect and transmit to the host computer the valve status (specifically input by the valve status input interface), valve opening / stroke (specifically input by the valve opening / stroke input interface), valve stem thrust (specifically input by the valve stem thrust input interface), valve stem torque (specifically input by the valve stem torque input interface), the electric valve actuator current size (specifically the motor current size of the electric valve actuator) obtained based on the three-phase current sampling signal and the electric valve actuator voltage size (specifically the motor voltage size of the electric valve actuator) obtained based on the three-phase voltage sampling signal, as well as the control instructions that need to be output through the external interface.

[0067] The upper computer is further configured to display and analyze the data uploaded from the lower computer in real time to obtain debugging / diagnostic analysis results for the electric on / off valve. The uploaded data includes the valve status, valve opening / stroke, valve stem thrust, valve stem torque, electric valve actuator current, and electric valve actuator voltage input via the external interface, as well as the control instructions to be output via the external interface. Specifically, the uploaded data from the lower computer is analyzed and processed to obtain the debugging / diagnostic analysis results of the electric switch valve, including but not limited to: calculating the active power and / or power factor of the electric switch valve based on the three-phase current and the three-phase voltage from the lower computer (the specific calculation formula is an existing formula and will not be repeated here), and displaying and storing them; and / or, automatically diagnosing the performance parameters of the electric switch valve based on the uploaded data from the lower computer, and generating parameter reports and / or characteristic curves of the performance parameters, wherein the performance parameters include but are not limited to valve opening or / stroke, switching time, starting current, operating current, three-phase current imbalance, seating force, pull-out force, maximum valve stem friction, minimum valve stem friction, average valve stem friction, torque switch action value, torque switch reset value, current and active power when the torque switch is actuated / reset, travel switch action value and / or travel switch reset value, etc. The aforementioned performance parameters are conventional terms. The specific process for diagnosing these performance parameters based on uploaded data, such as the valve state, valve opening / stroke, valve stem thrust, valve stem torque, electric valve actuator current, electric valve actuator voltage, and control instructions, is conventional and will not be further described here. Furthermore, these diagnostically derived performance parameters, along with their numerical tables and / or characteristic curves, can also be displayed and stored.

[0068] Based on the detailed description of the above-mentioned electric switch valve debugging and diagnosis control device, a new electric switch valve debugging / diagnosis solution suitable for nuclear power plants is provided, which includes a host computer, a slave computer and an electric valve control drive module. The slave computer includes a panel and a data acquisition control board connected to the host computer. The panel is provided with external interfaces and button switches respectively connected to the data acquisition control board. The external interfaces include valve state input interface, valve opening / stroke input interface, valve stem thrust input interface, valve stem torque input interface, electric valve actuator current input interface, electric valve actuator voltage input interface and control instruction output interface. Through their connection relationship and mutual cooperation, the control command output interface can be controlled remotely through the host computer or on site by pressing the button. The push button switch generates commands for debugging / diagnosing the electric switch valve, and completes the control execution through the electric valve control drive module. It also collects and uploads the valve status, valve opening / stroke, valve stem thrust, valve stem torque, electric valve actuator current and electric valve actuator voltage, as well as control instructions, so as to display and analyze the uploaded data in real time and obtain the debugging / diagnostic analysis results of the electric switch valve. In this way, only one team of personnel is needed to realize on-site operation of the electric switch valve, reducing manpower input, shortening the construction period, and eliminating the need for manual communication, completely eliminating the risk of communication failure, thereby improving safety and the speed of completing on-site work, reducing personnel radiation exposure, and facilitating practical application and promotion.

[0069] Preferably, the data acquisition control board is further configured to cancel and block the issuance of the valve opening / closing control command when an alarm condition is detected, until the alarm condition disappears. The alarm conditions include, but are not limited to, overcurrent, reverse flow, abnormality, phase loss, three-phase imbalance, sequence reversal, and / or emergency stop. Thus, the entire device also has functions such as overcurrent protection, reverse flow protection, abnormality protection, phase loss protection, three-phase imbalance protection, sequence reversal protection, and / or emergency stop protection. Specifically, determining the occurrence of an alarm condition includes but is not limited to: based on the current size of the electric valve actuator, if it is found that the current value of any phase, any two phases or three phases is greater than the preset overcurrent protection current threshold, it is determined that an overcurrent condition has occurred; based on the valve state, if it is found that the state of the valve feedback is inconsistent with the output open / close valve control instruction, it is determined that a reversal condition has occurred, or based on the valve opening / stroke, if it is found that the valve opening / stroke change trend is inconsistent with the output open / close valve control instruction, it is determined that a reversal condition has occurred; based on the valve state, if it is found that the state of the valve feedback is an abnormal state, it is determined that an abnormal condition has occurred; based on the execution of the electric valve when the three-phase AC power is turned on, If any phase current value is zero, a phase loss condition is determined. If the imbalance of the three-phase current values ​​is greater than a preset imbalance threshold value based on the current of the electric valve actuator, a three-phase imbalance condition is determined. If the phase sequence of the three-phase AC power supply input to the electric valve control drive module is reversed, a reverse sequence condition is determined (only a reverse sequence is indicated, and no reset or blocking of the switching command is performed). Upon receiving an emergency stop command (which can be from the host computer or the push button switch), an emergency stop condition is determined. The emergency stop command is used to cancel and block the issuance of the open / close valve control command. In addition, the data acquisition control board is further configured to send a power disconnect control command to the electric valve control drive module when an alarm condition is determined, so that the electric valve control drive module can promptly cut off the three-phase AC power supply to the electric switch valve.

[0070] Preferably, the lower computer also includes, but is not limited to, an indicator light and / or an alarm connected to the data acquisition control board, wherein the indicator light includes, but is not limited to, a valve opening position indicator light that lights up when the electric switch valve is found to be in the open position according to the valve state, a valve closing position indicator light that lights up when the electric switch valve is found to be in the closed position according to the valve state, and / or a phase sequence abnormality indicator light that lights up when the phase sequence of the three-phase AC power supply input to the electric valve control drive module is found to be in reverse sequence, etc. The alarm is used to trigger an alarm action when it is determined that an overcurrent condition, a reversal condition, an abnormal condition, a phase loss condition, a three-phase imbalance condition, and / or an emergency shutdown condition occurs. This can also enable the entire device to have the functions of indicating the open / close valve position, indicating the abnormal phase sequence of the working power, and a protection alarm. In addition, the alarm can be, but is not limited to, an audible and visual alarm, and perform different audible and visual alarm actions for different situations.

[0071] Preferably, the lower computer further includes but is not limited to a rechargeable battery, and the button switch includes but is not limited to a power switch, one end of the power switch is connected to the output end of the rechargeable battery, and the other end of the power switch is connected to the power supply end of the data acquisition control board. Figure 2 As shown, the rechargeable battery can be used to provide operating power for the data acquisition control board, eliminating the need for a separate power supply when used on-site. The power switch is used to control the on / off switching of the power supply circuit between the rechargeable battery and the data acquisition control board. Specifically, a self-locking hold button can be used to achieve stable on / off switching. When the aforementioned power supply circuit is on, the data acquisition control board can also monitor the remaining charge of the rechargeable battery in real time and upload the monitoring data to the host computer for real-time display. In addition, the rechargeable battery can be charged via an external power adapter.

[0072] Preferably, in order to achieve the purpose of automatic diagnosis, the performance parameters of the electric switch valve are automatically diagnosed based on the uploaded data from the lower computer, including but not limited to the following steps S101 to S111.

[0073] S101. Determine whether the electric switch valve is fully closed based on the valve status from the lower computer. If so, execute step S105; otherwise, execute step S102.

[0074] S102. After waiting for a first preset time, a valve closing soft command is issued to the data acquisition control board, and then step S103 is executed.

[0075] After step S102 , the data acquisition control board generates a valve closing control instruction according to the valve closing soft command, and transmits the instruction to the electric valve control drive module to perform the valve closing action.

[0076] S103. Based on the valve status from the lower computer, determine again whether the electric switch valve is fully closed. If so, execute step S104; otherwise, continue to send a valve closing soft command to the data acquisition control board, and then return to execute step S103.

[0077] S104. Send a reset valve closing soft command to the data acquisition control board, and then return to step S105.

[0078] After step S104, the data acquisition control board generates a valve reset and valve close control instruction according to the valve reset and valve close soft command, and transmits the instruction to the electric valve control drive module to perform the valve reset and valve close action.

[0079] S105. After waiting for the second preset time, a valve opening soft command is issued to the data acquisition control board, and then step S106 is executed.

[0080] After step S105 , the data acquisition control board generates a valve opening control instruction according to the valve opening soft command, and transmits the instruction to the electric valve control drive module to perform the valve opening action.

[0081] S106. According to the valve status from the lower computer, determine whether the electric switch valve is fully opened. If so, execute step S107; otherwise, continue to send a valve opening soft command to the data acquisition control board, and then return to execute step S106.

[0082] S107. Send a reset valve opening soft command to the data acquisition control board, and then return to step S108.

[0083] After step S107, the data acquisition control board generates a reset valve opening control instruction according to the reset valve opening soft command, and transmits the instruction to the electric valve control drive module to perform the reset valve opening action.

[0084] S108. After waiting for a third preset time period, a valve closing soft command is issued to the data acquisition control board, and then step S109 is executed.

[0085] S109. Based on the valve status from the lower computer, determine again whether the electric switch valve is fully closed. If so, execute step S110; otherwise, continue to send a valve closing soft command to the data acquisition control board, and then return to execute step S109.

[0086] S110. Send a reset valve closing soft command to the data acquisition control board, and then return to step S111.

[0087] S111. Based on the uploaded data received from the lower computer during the execution of steps S105 to S110, the performance parameters of the electric switching valve are analyzed and calculated, wherein the performance parameters include but are not limited to valve opening / stroke, switching time, starting current, operating current, three-phase current imbalance, seating force, pull-out force, maximum friction force of valve stem, minimum friction force of valve stem, average friction force of valve stem, torque switch action value, torque switch reset value, current and active power when torque switch is acted / reset, travel switch action value and / or travel switch reset value, etc.

[0088] Preferably, the electric valve control drive module includes but is not limited to a three-phase AC input interface, a controllable power switch, a phase sequence adjustment unit and a three-phase AC output interface electrically connected in sequence, wherein the three-phase AC input interface is used to connect to an external three-phase AC power supply, and the three-phase AC output interface is used to connect to the three-phase AC connector of the electric switch valve (which can be connected to the stroke / torque switch of the electric switch valve to output the valve state of the electric switch valve); the electric valve control drive module also includes but is not limited to a three-phase voltage output interface, a three-phase current transformer, a three-phase current output interface and a control command input interface, wherein the three-phase voltage output interface is respectively connected to the electric valve actuator voltage input interface and the three-phase voltage sampling point between the three-phase AC input interface and the controllable power switch, and the current sensing hole of the three-phase current transformer is passed through a three-phase AC input interface and the controllable power switch (i.e. Figure 3 As shown), a three-phase AC cable is provided between the controllable power switch and the phase sequence adjustment unit or between the phase sequence adjustment unit and the three-phase AC output interface, and between the three-phase AC input interface and the controllable power switch (i.e., the three-phase AC cable passes through the aforementioned current sensing hole), the three-phase current output interface is respectively connected to the electric valve actuator current input interface and the output end of the three-phase current transformer, and the control command input interface is respectively connected to the controlled end of the controllable power switch and the controlled end of the phase sequence adjustment unit. As shown Figure 3As shown, the external three-phase AC power supply can be specifically an on-site maintenance AC power supply provided when the MCC cabinet is unavailable, so as to serve as the power supply for the electric switching valve. The controllable power switch is used to turn on / off the three-phase AC power (i.e., the three-phase AC cable) supplied to the electric switching valve according to a power on / off control instruction transmitted from the lower computer based on a power on / off command (e.g., a power on / off hard command or a power on / off soft command). This can be specifically implemented using conventional existing switching devices. The phase sequence adjustment unit is configured to output the three-phase AC power for the electric switch valve in positive or reverse sequence, based on an on / off valve control instruction transmitted from the lower computer based on an on / off valve command (e.g., a hard or soft on / off valve command), thereby driving the electric switch valve to open or close. Furthermore, the phase sequence adjustment unit is configured to adjust the phase sequence of the three-phase AC power for the electric switch valve (e.g., adjusting it to positive sequence when in reverse sequence) based on a phase sequence adjustment control instruction transmitted from the lower computer based on a phase sequence adjustment command (e.g., a hard or soft on / off valve command). This can be implemented using conventional existing phase sequence adjustment circuits. Based on the specific design of the electric valve control drive module, remote or local control and debugging / diagnosis of the electric switch valve can be performed using on-site maintenance or temporary power when the MCC cabinet is unavailable, further enhancing practicality. Furthermore, the three-phase current transformer can also be conventionally implemented using existing current transformers.

[0089] Preferably, the electric valve control drive module includes but is not limited to a connector socket, a three-phase voltage output port, a three-phase current transformer, a three-phase current output port, a control command input port and a connector plug, wherein the connector socket is used to connect the three-phase AC power supply and the electric valve switch control circuit in the electric valve MCC cabinet respectively, and the connector plug is used to connect the three-phase AC plug of the electric valve actuator. The connector socket is connected to the connector plug (such as Figure 4 As shown, specifically, the connector plug is connected via a three-phase AC output port); the three-phase voltage output port is respectively connected to the voltage input interface of the electric valve actuator and the three-phase voltage sampling point between the connector socket and the three-phase AC output port, and the current sensing hole of the three-phase current transformer is passed through a three-phase AC cable between the connector socket and the connector plug, and the three-phase current output port is respectively connected to the current input interface of the electric valve actuator and the output end of the three-phase current transformer, and the control command input port is connected to the electric valve switch control circuit in the electric valve MCC cabinet through the connector socket. As shown Figure 4As shown, the electric valve switch control circuit is a specific control circuit within the existing electric valve MCC cabinet that performs on / off valve operation on the electric switch valve. It can be operated on / off based on on / off valve control instructions from the control command input port and the data acquisition control board. Based on another specific design of the electric valve control drive module, when the MCC cabinet is available, the electric valve's official power supply and original control circuit can be used to remotely or locally control and debug / diagnose the electric switch valve, further improving its practicality. Furthermore, the three-phase current transformer can also be conventionally implemented using existing current transformers.

[0090] Further preferably, the electric valve control drive module also includes but is not limited to a valve state input port and a valve state output port, wherein the valve state input port is connected to the stroke / torque switch of the electric switch valve through the connector plug, the valve state input port is also connected to the electric valve MCC cabinet through the connector socket, the valve state input port is also connected to the valve state output port, and the valve state output port is also connected to the valve opening / stroke input interface. Figure 4 As shown, through the above-mentioned specific design, not only can the data acquisition control board acquire the valve status of the electric switch valve, but the electric valve MCC cabinet can also obtain the valve status of the electric switch valve, so that reverse protection or abnormal protection can also be performed on the MCC cabinet side, further improving practicality.

[0091] In summary, the electric on-off valve debugging and diagnosis control device provided in this embodiment has the following technical effects:

[0092] (1) This embodiment provides a new debugging / diagnostic solution for electric switch valves in nuclear power plants, which includes a host computer, a slave computer and an electric valve control drive module. The slave computer includes a panel and a data acquisition control board connected to the host computer. The panel is provided with external interfaces and button switches connected to the data acquisition control board respectively. The external interfaces include a valve state input interface, a valve opening / stroke input interface, a valve stem thrust input interface, a valve stem torque input interface, an electric valve actuator current input interface, an electric valve actuator voltage input interface and a control instruction output interface. Through their connection relationship and mutual cooperation, the control command can be generated remotely through the host computer or on-site through the button switch. Generates commands for debugging / diagnosing electric on / off valves, and completes control execution through the electric valve control drive module. It also collects and uploads valve status, valve opening / stroke, valve stem thrust, valve stem torque, electric valve actuator current, electric valve actuator voltage, and control instructions, so as to display and analyze the uploaded data in real time and obtain debugging / diagnostic analysis results of the electric on / off valve. In this way, only one team of personnel is needed to realize on-site operation of the electric on / off valve, reducing manpower input and shortening construction period. In addition, manual communication is no longer required, and the risk of communication failure is completely eliminated, thereby improving safety and speeding up on-site work completion, and reducing personnel radiation exposure.

[0093] (2) Compared with the existing electric switch valve debugging / diagnosis solution, it has the advantage of portability: the device is light in weight, small in size, and has few accessories, making it easy to transport and carry on site;

[0094] (3) Compared with the existing electric switch valve debugging / diagnosis scheme, it has the advantage of not requiring a dedicated working power supply: that is, the device has a built-in rechargeable battery, and no additional working power supply is required when in use, which reduces the workload on site and avoids the risks of providing working power and using the device. At the same time, it reduces the weight of the device and reduces the on-site handling workload of the staff;

[0095] (4) Compared with the existing electric switch valve debugging / diagnosis scheme, it has the advantages of simple and quick installation: that is, it uses laser ranging technology to measure the valve stroke, which is more convenient to install than the pull-wire sensor and has high measurement accuracy; the device has its own three-phase current and voltage measurement sensors, and no other instruments are required when measuring the three-phase current and voltage;

[0096] (5) Compared with the existing electric switch valve debugging / diagnosis scheme, it has the functions of abnormal protection, overcurrent protection, reverse protection, phase loss protection, three-phase unbalance protection and manual emergency stop protection, and issues the valve opening / closing command by resetting and locking after the protection action, and automatically cuts off the power supply at the same time, and issues the corresponding sound and light alarm, which improves the safety of on-site work and eliminates the risk of damage to the electric switch valve due to failure to cut off the power supply in the first time due to overcurrent, abnormality and phase loss in the valve during debugging and diagnosis;

[0097] (6) Compared with the existing electric switch valve debugging / diagnosis scheme, it also has the electric switch valve automatic diagnosis function, which is convenient for practical application and promotion.

[0098] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An electric switch valve debugging and diagnosis control device, characterized in that: It includes a host computer, a slave computer and an electric valve control drive module, wherein the slave computer includes a panel and a data acquisition control board connected to the host computer, and the panel is provided with external interfaces and button switches respectively connected to the data acquisition control board, and the external interfaces include a valve state input interface for connecting to the stroke / torque switch of the electric switching valve, a valve opening / stroke input interface for connecting to the valve opening / stroke sensor of the electric switching valve, a valve stem thrust input interface for connecting to the thrust sensor of the electric switching valve, a valve stem torque input interface for connecting to the torque sensor of the electric switching valve, an electric valve actuator current input interface for connecting to the current transformer in the electric valve control drive module, an electric valve actuator voltage input interface for connecting to the voltage sampling point in the electric valve control drive module and a control instruction output interface for connecting to the electric valve control drive module; The host computer is used to generate soft commands for debugging / diagnosing the electric switch valve; Push button switch, used to generate hard commands for debugging / diagnosing electric on / off valves; The data acquisition control board is used to send control instructions for debugging / diagnosing the electric switch valve to the electric valve control drive module according to soft commands or hard commands; The electric valve control drive module is used to execute control instructions and transmit the three-phase current sampling signal and the three-phase voltage sampling signal of the three-phase AC power used to power the electric switch valve to the data acquisition control board; The data acquisition control board is also used to collect and transmit to the upper computer the valve status, valve opening / stroke, valve stem thrust, valve stem torque, the electric valve actuator current size based on the three-phase current sampling signal and the electric valve actuator voltage size based on the three-phase voltage sampling signal input through the external interface, as well as the control instructions that need to be output through the external interface; The upper computer is also used to display and analyze the uploaded data from the lower computer in real time to obtain the debugging / diagnostic analysis results of the electric switch valve.

2. The electric switch valve debugging and diagnosis control device according to claim 1, characterized in that: The button switches include a point-operated valve-opening button switch for generating a valve-opening hard command and an automatic reset button when pressed, a valve-opening button switch for generating a valve-opening hard command and a self-locking holding button when pressed, a point-operated valve-closing button switch for generating a valve-closing hard command and an automatic reset button when pressed, a valve-closing button switch for generating a valve-closing hard command and a self-locking holding button when pressed, a control switching button switch for switching between a remote control hard command and a local control hard command and a self-locking holding button when pressed, a phase sequence adjustment button switch for generating a phase sequence adjustment hard command and a self-locking holding button when pressed, and a power on / off button for generating a power on / off hard command and a self-locking holding button when pressed. The off button switch and / or the emergency stop button switch used to generate an emergency stop hard command and is a self-locking holding button, wherein the remote control hard command is used to indicate that only the on / off valve soft command from the host computer is accepted, the local control hard command is used to indicate that only the on / off valve hard command from the button switch is accepted, the phase sequence adjustment hard command is used to instruct the electric valve control drive module to adjust the phase sequence of the three-phase AC power input to the electric switching valve, the power on / off hard command is used to instruct the electric valve control drive module to turn on / off the three-phase AC power input to the electric switching valve, and the emergency stop hard command is used to indicate the cancellation and locking of the on / off valve control instruction.

3. The debugging and diagnostic control device for an electric switch valve according to claim 1, characterized in that: The data acquisition control board is also used to cancel and lock the opening / closing valve control command when an alarm condition is determined to occur until the alarm condition disappears, where the alarm condition includes overcurrent, reversal, abnormality, phase loss, three-phase imbalance and / or emergency shutdown.

4. The debugging and diagnostic control device for an electric switch valve according to claim 3, characterized in that: Determine if an alarm condition occurs, including: According to the current size of the electric valve actuator, if the current value of any phase, any two phases or three phases is found to be greater than the preset overcurrent protection current threshold, it is determined that an overcurrent situation has occurred; According to the valve status, if it is found that the valve feedback status is inconsistent with the output open / close valve control instruction, it is determined that a reversal situation has occurred; or according to the valve opening / stroke, if it is found that the valve opening / stroke change trend is inconsistent with the output open / close valve control instruction, it is determined that a reversal situation has occurred; According to the valve status, if the valve feedback status is found to be abnormal, it is determined that an abnormal situation has occurred; According to the current size of the electric valve actuator when the three-phase AC power is turned on, if any phase current value is found to be zero, it is determined that a phase loss occurs; According to the current size of the electric valve actuator, if the imbalance of the three-phase current value is found to be greater than the preset imbalance threshold, it is determined that a three-phase imbalance occurs; According to the phase sequence of the three-phase AC power supply input to the electric valve control drive module, if the phase sequence of the three-phase AC power supply is found to be reversed, it is determined that a reverse sequence situation occurs; When an emergency stop command is received, it is determined that an emergency stop situation occurs, wherein the emergency stop command is used to instruct to cancel and lock the issuance of an open / close valve control instruction.

5. The debugging and diagnostic control device for an electric switch valve according to claim 1, characterized in that: The lower computer also includes indicator lights and / or alarms connected to the data acquisition control board, wherein the indicator lights include a valve opening position indicator light that lights up when the electric switch valve is found to be in the open position according to the valve status, a valve closing position indicator light that lights up when the electric switch valve is found to be in the closed position according to the valve status, and / or a phase sequence abnormality indicator light that lights up when the phase sequence of the three-phase AC power supply input to the electric valve control drive module is found to be reversed. The alarm is used to trigger an alarm action when it is determined that an overcurrent condition, a reversal condition, an abnormal condition, a phase loss condition, a three-phase imbalance condition and / or an emergency shutdown condition occurs.

6. The debugging and diagnostic control device for an electric switch valve according to claim 1, characterized in that: The lower computer also includes a rechargeable battery, and the button switch includes a power switch. One end of the power switch is connected to the output end of the rechargeable battery, and the other end of the power switch is connected to the power supply end of the data acquisition control board.

7. The debugging and diagnostic control device for an electric switch valve according to claim 1, characterized in that: Analyze and process the uploaded data from the lower computer to obtain the debugging / diagnostic analysis results of the electric on / off valve, including: According to the three-phase current and three-phase voltage from the lower computer, the active power and / or power factor of the electric switch valve is calculated, displayed and stored; And / or, based on the uploaded data from the lower computer, the performance parameters of the electric switching valve are automatically diagnosed and a parameter report and / or characteristic curve of the performance parameters are generated, wherein the performance parameters include valve opening / stroke, switching time, starting current, operating current, three-phase current imbalance, seating force, pull-out force, maximum valve stem friction, minimum valve stem friction, average valve stem friction, torque switch action value, torque switch reset value, current and active power when the torque switch is acted / reset, travel switch action value and / or travel switch reset value.

8. The debugging and diagnostic control device for an electric switch valve according to claim 7, characterized in that: Based on the data uploaded from the lower computer, the performance parameters of the electric switch valve are automatically diagnosed, including the following steps S101 to S111: S101. According to the valve status from the lower computer, determine whether the electric switch valve is closed. If so, execute step S105, otherwise execute step S102; S102. After waiting for the first preset time, a valve closing soft command is issued to the data acquisition control board, and then step S103 is executed; S103. Based on the valve status from the lower computer, it is determined again whether the electric switch valve is closed. If so, step S104 is executed. Otherwise, a soft command to close the valve is sent to the data acquisition control board, and then the execution returns to step S103. S104 sends a reset valve closing soft command to the data acquisition control board, and then returns to step S105; S105. After waiting for the second preset time, a valve opening soft command is issued to the data acquisition control board, and then step S106 is executed; S106. According to the valve status from the lower computer, determine whether the electric switch valve is fully open. If so, execute step S107. Otherwise, continue to send a valve opening soft command to the data acquisition control board, and then return to step S106. S107. Send a reset valve opening soft command to the data acquisition control board, and then return to step S108; S108. After waiting for the third preset time, a valve closing soft command is issued to the data acquisition control board, and then step S109 is executed; S109. Based on the valve status from the lower computer, it is determined again whether the electric switch valve is fully closed. If so, step S110 is executed. Otherwise, a soft command to close the valve is sent to the data acquisition control board, and then the execution returns to step S109. S110 sends a reset valve closing soft command to the data acquisition control board, and then returns to step S111; S111. Based on the uploaded data received from the lower computer during the execution of steps S105 to S110, the performance parameters of the electric switching valve are analyzed and calculated, wherein the performance parameters include valve opening / stroke, switching time, starting current, operating current, three-phase current imbalance, seating force, pull-out force, maximum friction of the valve stem, minimum friction of the valve stem, average friction of the valve stem, torque switch action value, torque switch reset value, current and active power when the torque switch is acted / reset, travel switch action value and / or travel switch reset value.

9. The debugging and diagnostic control device for an electric switch valve according to claim 1, characterized in that: The electric valve control drive module includes a three-phase AC input interface, a controllable power switch, a phase sequence adjustment unit and a three-phase AC output interface that are electrically connected in sequence, wherein the three-phase AC input interface is used to connect to an external three-phase AC power supply, and the three-phase AC output interface is used to connect to the three-phase AC connector of the electric switch valve; The electric valve control drive module also includes a three-phase voltage output interface, a three-phase current transformer, a three-phase current output interface and a control command input interface, wherein the three-phase voltage output interface is connected to the three-phase voltage sampling point between the three-phase AC input interface and the controllable power switch, and the current sensing hole of the three-phase current transformer is passed through a three-phase AC power cable between the three-phase AC input interface and the controllable power switch, between the controllable power switch and the phase sequence adjustment unit, or between the phase sequence adjustment unit and the three-phase AC output interface. The three-phase current output interface is connected to the output end of the three-phase current transformer, and the control command input interface is respectively connected to the controlled end of the controllable power switch and the controlled end of the phase sequence adjustment unit.

10. The debugging and diagnostic control device for an electric switch valve according to claim 1, characterized in that: The electric valve control drive module includes a connector socket, a three-phase voltage output port, a three-phase current transformer, a three-phase current output port, a control command input port and a connector plug. The connector socket is used to connect the three-phase AC power supply and the electric valve switch control circuit in the electric valve MCC cabinet respectively. The connector plug is used to connect the three-phase AC power connector of the electric valve actuator. The connector socket is connected to the connector plug. The three-phase voltage output port is respectively connected to the voltage input interface of the electric valve actuator and the three-phase voltage sampling point between the connector socket and the three-phase AC output port. The current sensing hole of the three-phase current transformer is passed through a three-phase AC cable between the connector socket and the connector plug. The three-phase current output port is respectively connected to the current input interface of the electric valve actuator and the output end of the three-phase current transformer. The control command input port is connected to the electric valve switch control circuit in the electric valve MCC cabinet through the connector socket.

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