阅读说明：本技术 核电厂电动阀参数在线监测系统及在线监测模块 (Nuclear power plant electric valve parameter online monitoring system and online monitoring module ) 是由 田骏 张怡 黄伟军 丰娟娟 蒋燕祥 胡佳堃 张黎明 彭华清 薄晶杰 田亚杰 于 2020-12-10 设计创作，主要内容包括：本发明公开了一种核电厂电动阀参数在线监测系统及在线监测模块,该系统包括电动阀、电气开关柜及与在线监测模块,电气开关柜通过一动力电源回路向电动阀提供动力电源,在线监测模块实时测量动力电源回路的电气参数及设备参数；在线监测模块包括：电源模块、传输接口、电气参数采集模块、设备参数采集模块、频率控制模块、信号转换模块、控制单元,控制单元包括自检模块,自检模块用于检测在线监测模块自身的运行状态参数。本发明的核电厂电动阀参数在线监测系统及在线监测模块,通过电气参数采集模块及设备参数采集模块实现了电气参数和设备参数的采集,通过频率控制模块实现高频率采集,通过自检模块实现自身的运行状态参数的检测。(The invention discloses an online monitoring system and an online monitoring module for nuclear power plant electric valve parameters, wherein the system comprises an electric valve, an electric switch cabinet and an online monitoring module, the electric switch cabinet provides power supply for the electric valve through a power supply loop, and the online monitoring module measures the electric parameters and equipment parameters of the power supply loop in real time; the on-line monitoring module comprises: the device comprises a power module, a transmission interface, an electrical parameter acquisition module, an equipment parameter acquisition module, a frequency control module, a signal conversion module and a control unit, wherein the control unit comprises a self-checking module which is used for detecting the running state parameters of the on-line monitoring module. According to the nuclear power plant electric valve parameter online monitoring system and the online monitoring module, the electrical parameter and equipment parameter acquisition is realized through the electrical parameter acquisition module and the equipment parameter acquisition module, the high-frequency acquisition is realized through the frequency control module, and the self-checking module is used for detecting the running state parameter.)

1. An online nuclear power plant electric valve parameter monitoring system is characterized by comprising an electric valve (10), an electric switch cabinet (20) connected with the electric valve (10) and an online monitoring module (30) connected with the electric switch cabinet (20), wherein the electric switch cabinet (20) is used for providing power supply for the electric valve (10) through a power supply loop (21), and the online monitoring module (30) measures the electric parameters and equipment parameters of the power supply loop (21) in real time; wherein the online monitoring module (30) comprises:

a power supply module (31) for supplying power;

a transmission interface (32) connected to the electrical switchgear cabinet (20) for signal transmission;

the electric parameter acquisition module (33) is connected with the transmission interface (32), and the electric parameter acquisition module (33) is used for monitoring the electric parameters of the power supply loop (21) in real time and generating electric parameter signals;

the equipment parameter acquisition module (34) is connected with the transmission interface (32), and the equipment parameter acquisition module (34) is used for measuring the equipment parameters of the power supply loop (21) in real time and generating equipment parameter signals;

the frequency control module (35) is connected with the electrical parameter acquisition module (33) and the equipment parameter acquisition module (34) and is used for setting the acquisition frequency of the electrical parameter acquisition module (33) and the equipment parameter acquisition module (34) to be at least 4 kHz;

the signal conversion module (36) is connected with the electrical parameter acquisition module (33) and the equipment parameter acquisition module (34), and the signal conversion module (36) is used for performing analog-to-digital conversion on the electrical parameter signal and the equipment parameter signal;

the control unit (37), the control unit (37) includes a self-checking module (371), self-checking module (371) is used for detecting the running state parameter of on-line monitoring module (30) itself, and judges whether running state parameter surpasses running state safety threshold value, and export the self-checking result signal according to the judged result.

2. The on-line nuclear power plant electric valve parameter monitoring system as claimed in claim 1, wherein the operation state parameters of the on-line monitoring module (30) detected by the self-checking module (371) comprise a module electrical fault parameter, a signal communication fault parameter, a control unit fault parameter and an input and output fault parameter.

3. The on-line nuclear power plant electrically operated valve parameter monitoring system according to claim 1, characterized in that the electrical parameters collected by the electrical parameter collection module (33) comprise at least one of three-phase power current, voltage, apparent power, active power, frequency, electrical energy consumption.

4. The on-line nuclear power plant electric valve parameter monitoring system as claimed in claim 1, wherein the equipment parameters collected by the equipment parameter collection module (34) include at least one of breaker open position, breaker close position, load rate.

5. The on-line nuclear power plant electric valve parameter monitoring system according to claim 1, comprising a number of electric valves (10), a number of electrical switchgear cabinets (20) and a number of on-line monitoring modules (30), wherein the number of electric valves (10), electrical switchgear cabinets (20) and on-line monitoring modules (30) is the same.

6. The on-line nuclear power plant electric valve parameter monitoring system according to claim 5, further comprising a signal collection and collection cabinet (40), wherein the signal collection and collection cabinet (40) receives the collected electric parameter signals and the equipment parameter signals of all the on-line monitoring modules (30) through a bus (38) and a network transmission interface (41).

7. The on-line nuclear power plant electric valve parameter monitoring system according to any one of claims 1 to 6, characterized in that the control unit (37) further comprises an alarm module (372), and the alarm module (372) is connected with the self-test module (371) and selectively outputs an alarm signal according to the self-test result signal.

8. The on-line nuclear power plant electric valve parameter monitoring system according to any one of claims 1 to 6, characterized in that the transmission interface (32) comprises at least one of an Ethernet interface, a fiber optic interface, and a serial port.

9. The on-line nuclear power plant electric valve parameter monitoring system as claimed in any one of claims 1 to 6, characterized in that the electrical switchgear cabinet (20) is opened with a module compartment, and the on-line monitoring module (30) is arranged in the module compartment.

10. An online monitoring module, characterized in that it comprises an online monitoring module (30) according to any one of claims 1-9.

Technical Field

The invention relates to the field of automatic monitoring, in particular to an online monitoring system and an online monitoring module for electric valve parameters of a nuclear power plant.

Background

At present, in the equipment for online data monitoring of electric parameters of electric valves at home and abroad, the current and the voltage of a power supply loop of the electric valve are mainly monitored by an online monitoring module arranged in a switch cabinet, a voltage transformer, a current transformer, a module control component and a related signal interface are configured in the module, and the voltage and the current parameters of the power supply are acquired by the voltage transformer and the current transformer.

The online data monitoring mode of the electric parameters of the electric valve in the prior art has the following defects:

(1) the data acquisition frequency is low, and the data volume is small, so that the follow-up fault diagnosis is not accurate.

(2) The data acquisition module has no self-checking function, needs to be checked by means of external special equipment, cannot perform self-checking during operation, and is difficult to continuously ensure reliability.

(3) The data acquisition module only acquires current and voltage signals, and the type of acquired data is less.

Disclosure of Invention

The invention aims to solve the technical problems that an improved nuclear power plant electric valve parameter online monitoring system and an improved nuclear power plant electric valve parameter online monitoring module are provided, and the problems of electric parameter and equipment parameter acquisition of a power supply loop in an electric switch cabinet are solved; the problem of self-checking of an online detection module is solved; the problem of high frequency acquisition is solved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the nuclear power plant electric valve parameter online monitoring system comprises an electric valve, an electric switch cabinet connected with the electric valve and an online monitoring module connected with the electric switch cabinet, wherein the electric switch cabinet is used for providing power supply for the electric valve through a power supply loop, and the online monitoring module measures the electric parameters and equipment parameters of the power supply loop in real time; wherein, the online monitoring module includes:

the power supply module is used for providing power supply;

the transmission interface is connected with the electrical switch cabinet and is used for signal transmission;

the electric parameter acquisition module is connected with the transmission interface and is used for monitoring the electric parameters of the power supply loop in real time and generating electric parameter signals;

the equipment parameter acquisition module is connected with the transmission interface and is used for measuring the equipment parameters of the power supply loop in real time and generating equipment parameter signals;

the frequency control module is connected with the electrical parameter module and the equipment parameter module and is used for setting the acquisition frequency of the electrical parameter module and the equipment parameter module to be at least 4 kHz;

the signal conversion module is connected with the electrical parameter module and the equipment parameter module and is used for carrying out analog-to-digital conversion on the electrical parameter signal and the equipment parameter signal;

and the control unit comprises a self-checking module, and the self-checking module is used for detecting the running state parameters of the online monitoring module, judging whether the running state parameters exceed a running state safety threshold value or not, and outputting a self-checking result signal according to a judgment result.

Preferably, the operation state parameters of the online monitoring module detected by the self-checking module include a module electrical fault parameter, a signal communication fault parameter, a control unit fault parameter and an input/output fault parameter.

Preferably, the electrical parameters collected by the electrical parameter collection module include at least one of three-phase power current, voltage, apparent power, active power, frequency, and electrical energy consumption.

Preferably, the equipment parameters collected by the equipment parameter collecting module include at least one of a breaker opening position, a breaker closing position and a load rate.

Preferably, the nuclear power plant electric valve parameter online monitoring system comprises a plurality of electric valves, a plurality of electric switch cabinets and a plurality of online monitoring modules, and the number of the electric valves, the number of the electric switch cabinets and the number of the online monitoring modules are consistent.

Preferably, the nuclear power plant electric valve parameter online monitoring system further comprises a signal acquisition and collection cabinet, and the signal acquisition and collection cabinet receives all the electric parameter signals and the equipment parameter signals acquired by the online monitoring module through a bus and a network transmission interface.

Preferably, the control unit further comprises an alarm module, and the alarm module is connected with the self-checking module and selectively outputs an alarm signal according to the self-checking result signal.

Preferably, the transmission interface includes at least one of an ethernet interface, an optical fiber interface, and a serial port.

Preferably, the electrical switchgear cabinet is opened with a module compartment, and the online monitoring module is disposed in the module compartment.

An online monitoring module comprises the online monitoring module.

The beneficial effects of the implementation of the invention are as follows: according to the nuclear power plant electric valve parameter online monitoring system and the online monitoring module, the electrical parameter and equipment parameter acquisition is realized through the electrical parameter acquisition module and the equipment parameter acquisition module, the high-frequency acquisition is realized through the frequency control module, and the self-checking module is used for detecting the running state parameter.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of an on-line monitoring system for nuclear power plant electrically operated valve parameters in some embodiments of the invention;

FIGS. 2A-2D are circuit diagrams of the electrical parameter acquisition module of FIG. 1;

fig. 3 is a schematic diagram of an online nuclear power plant electric valve parameter monitoring system according to another embodiment of the invention.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

Fig. 1 shows an online monitoring system for electrical valve parameters of a nuclear power plant in some embodiments of the present invention, which is used for online monitoring of parameters of an electrical valve 10, and implementing acquisition of electrical parameters and equipment parameters of a power supply loop 21 in an electrical switch cabinet 20; the problem of self-checking of an online detection module is solved; the problem of high frequency acquisition is solved.

The nuclear power plant electric valve parameter online monitoring system comprises an electric valve 10, an electric switch cabinet 20 and an online monitoring module 30, wherein the electric switch cabinet 20 is connected with the electric valve 10, and the electric switch cabinet 20 is used for providing power supply for the electric valve 10 through a power supply loop 21. The on-line monitoring module 30 is connected to the electrical switch cabinet 20, and the on-line monitoring module 30 is used for measuring electrical parameters and equipment parameters of the power supply loop 21 in real time. Preferably, the electrical switchgear cabinet 20 is opened with a module compartment, and the on-line monitoring module 30 is disposed within the module compartment.

In some embodiments, the online monitoring module 30 includes a power module 31, a transmission interface 32, an electrical parameter acquisition module 33, an equipment parameter acquisition module 34, a frequency control module 35, a signal conversion module 36, and a control unit 37.

The power module 31 is used for providing power. It is understood that the power module 31 is used to provide power for the online monitoring module 30, and the power module 31 may be in a form of a common wire, a charging, or the like, and is not limited specifically here as long as the related functions can be achieved.

The transmission interface 32 is connected to the electrical switchgear cabinet 20 and is used for signal transmission. Preferably, the transmission interface 32 includes at least one of an ethernet interface, a fiber optic interface, and a serial port. It is understood that the specific interface manner of the transmission interface 32 can also be other forms, and is not limited specifically herein as long as the related functions can be realized.

Referring to fig. 1 and 2A-2D, the electrical parameter acquisition module 33 is connected to the transmission interface 32, and the electrical parameter acquisition module 33 is configured to monitor electrical parameters of the power supply circuit 21 in real time and generate electrical parameter signals. The electrical parameters collected by the electrical parameter collecting module 33 include at least one of three-phase power current, voltage, apparent power, active power, frequency, and electrical energy consumption. It is understood that the specific parameter type of the electrical parameters may also include other electrical related parameters, which are not specifically limited herein as long as the related functions can be achieved. It is to be understood that the implementation manner of the electrical parameter collecting module 33 is not limited to the circuit diagrams shown in fig. 2A-2D, and may also include other forms, which are not specifically limited herein as long as the related functions can be implemented.

As shown in fig. 1, the device parameter acquisition module 34 is connected to the transmission interface 32, and the device parameter acquisition module 34 is configured to measure a device parameter of the power supply loop 21 in real time and generate a device parameter signal. The equipment parameters collected by the equipment parameter collecting module 34 include at least one of a breaker opening position, a breaker closing position and a load factor. It is understood that the specific parameter type of the device parameter may also include other electrical related parameters, which are not specifically limited herein as long as the related functions can be realized.

The frequency control module 35 is connected to the electrical parameter acquisition module 33 and the device parameter acquisition module 34, and is configured to set the acquisition frequency of the electrical parameter acquisition module 33 and the device parameter acquisition module 34 to maintain at least 4 kHz. The advantage of setting the frequency control module 35 is that the frequency control module 35 maintains the collection frequency of the electrical parameter collection module 33 and the device parameter collection module 34 at least 4kHz, so as to realize high-frequency collection of electrical parameters and device parameters. It can be understood that the acquisition frequency can also be manually set or automatically set according to specific requirements, and is not specifically limited herein as long as the related functions can be realized. It is understood that the frequency control module 35 may use a frequency control circuit, a frequency control chip, etc. commonly used in the prior art to implement frequency control, and is not limited herein as long as related functions can be implemented.

The signal conversion module 36 is connected to the electrical parameter acquisition module 33 and the device parameter acquisition module 34, and the signal conversion module 36 is configured to perform analog-to-digital conversion on the electrical parameter signal and the device parameter signal. It is to be understood that the signal conversion module 36 may use a signal conversion circuit, a signal conversion chip, etc. commonly used in the prior art to implement analog-to-digital conversion, and is not limited herein as long as the related functions can be implemented.

The control unit 37 includes a self-test module 371 and an alarm module 372. The self-checking module 371 is configured to detect an operation status parameter of the online monitoring module 30, determine whether the operation status parameter exceeds an operation status safety threshold, and output a self-checking result signal according to a determination result. Specifically, the operation state parameters of the online monitoring module 30 detected by the self-checking module 371 include a module electrical fault parameter, a signal communication fault parameter, a control unit fault parameter and an input/output fault parameter. It is understood that the operation status parameter may also include other forms, which are not specifically limited herein, as long as the related functions can be realized.

The alarm module 372 is connected to the self-test module 371, and selectively outputs an alarm signal according to the self-test result signal. It is understood that the form of the alarm signal may be a light, an alarm sound, or other forms, and is not limited specifically here as long as the related function can be achieved.

As shown in fig. 1 to 3, in some embodiments, the nuclear power plant electric valve parameter online monitoring system may include a plurality of electric valves 10, a plurality of electric switch cabinets 20, and a plurality of online monitoring modules 30, and the number of the electric valves 10, the number of the electric switch cabinets 20, and the number of the online monitoring modules 30 are the same. The nuclear power plant electric valve parameter online monitoring system further comprises a signal acquisition and collection cabinet 40, and the signal acquisition and collection cabinet 40 receives all the electric parameter signals and equipment parameter signals acquired by the online monitoring module 30 through a bus 38 and a network transmission interface 41.

Some embodiments of the present invention further include an online monitoring module, which is consistent with the foregoing embodiments and will not be described herein again.

The nuclear power plant electric valve parameter online monitoring system and the online monitoring module in the embodiment of the invention realize the measurement of various electrical parameters, including real-time electrical operation parameters such as power current (three phases), voltage, power (apparent power and active power), frequency and electric energy consumption. And monitoring the opening and closing positions of the circuit breaker, the load rate and other equipment operation information.

The nuclear power plant electric valve parameter online monitoring system and the online monitoring module in the embodiment of the invention also have a high-frequency acquisition effect, so that the high-frequency acquisition of the electric parameters is realized, and the acquisition frequency is at least 4 kHz.

The nuclear power plant electric valve parameter online monitoring system and the online monitoring module in the embodiment of the invention also have a self-checking effect, and the self-checking function of the online monitoring module is realized.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that several modifications and adaptations to those skilled in the art without departing from the principles of the present invention should also be considered within the scope of the present invention.