CN110887591A - Nuclear power water intaking sea area block pulling force on-line monitoring system - Google Patents

Nuclear power water intaking sea area block pulling force on-line monitoring system Download PDF

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Publication number
CN110887591A
CN110887591A CN201911110861.4A CN201911110861A CN110887591A CN 110887591 A CN110887591 A CN 110887591A CN 201911110861 A CN201911110861 A CN 201911110861A CN 110887591 A CN110887591 A CN 110887591A
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China
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tension
module
monitoring
nuclear power
sea area
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CN201911110861.4A
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CN110887591B (en
Inventor
陶勇
刘笑麟
陆海荣
李建文
张晓晨
张锦飞
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Shenzhen Yongxinglong Industrial Development Co Ltd
Suzhou Nuclear Power Research Institute Co Ltd
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Shenzhen Yongxinglong Industrial Development Co Ltd
Suzhou Nuclear Power Research Institute Co Ltd
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Publication of CN110887591A publication Critical patent/CN110887591A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)

Abstract

A nuclear power water intaking sea area blocking net tension on-line monitoring system comprises a tension sensor, a current meter, an on-site end equipment box, a far-end server and a client; the number of the tension sensors is two, and the two tension sensors are connected to two ends of the main rope of the intercepting net in series; the number of the current meters is two, the current meters are positioned on the front side and the rear side of the interception net body, and the two current meters are positioned at the same level and the same depth; a communication module is arranged in the local terminal equipment box, the input end of the communication module is connected with the tension sensor and the current meter in a wired mode, and the output end of the communication module is connected with the remote server in a wireless mode; the remote server is in communication connection with the client. The invention overcomes the problem that the common tension sensor has small measuring range and is difficult to use on the interception net, filters out unstable environmental influence, has more accurate monitoring data, adopts a networking mode of wired local end and wireless remote end, reduces the deployment difficulty of monitoring equipment and enhances the adaptability to the severe working environment of a water intake.

Description

Nuclear power water intaking sea area block pulling force on-line monitoring system
Technical Field
The invention relates to the field of detection of blocking net tension, in particular to an online monitoring system for blocking net tension in a nuclear power water taking sea area.
Background
The safe operation and reliability of the nuclear power plant are directly affected by the operating state of the water intake of the nuclear power plant, and in order to deal with the invasion of marine organisms in the nuclear power plant, the interception net is usually arranged to be matched with a manual fishing mode for removal. At present, the research on monitoring the state of the interception net is relatively lacked, and the stress condition of the interception net can be obtained only by theoretical analysis and calculation. Due to the fact that the water taking area is various in structure conditions and the comprehensive effect of wind, waves and currents, the stress condition of the blocking net is very complex, real stress data are difficult to obtain through simple theoretical calculation, and the blocking net and even a water taking system face failure risks.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides the on-line monitoring system for the tension of the blocking net in the nuclear power water intake sea area, which overcomes the problem that a common tension sensor is difficult to use on the blocking net due to small measuring range, filters out unstable environmental influence, is more accurate in monitoring data, reduces the deployment difficulty of monitoring equipment and enhances the adaptability to the severe working environment of a water intake by adopting a networking mode of wired local end and wireless remote end.
(II) technical scheme
The invention provides a tension on-line monitoring system for a blocking net in a nuclear power water taking sea area, which comprises a tension sensor, a current meter, a local end equipment box, a far-end server and a client side, wherein the tension sensor is connected with the current meter;
the number of the tension sensors is two, and the two tension sensors are connected to two ends of the main rope of the intercepting net in series; the number of the current meters is two, the current meters are positioned on the front side and the rear side of the interception net body, and the two current meters are positioned at the same level and the same depth;
a communication module is arranged in the local terminal equipment box, the input end of the communication module is connected with the tension sensor and the current meter in a wired mode, and the output end of the communication module is connected with the remote server in a wireless mode; the remote server is in communication connection with the client.
Preferably, the tension sensor is of a pillar type design.
Preferably, eight groups of strain units are arranged in the barrel structure of the tension sensor along an axial ring in a patch mode, and each group of strain units comprises a resistance strain gauge and a Wheatstone bridge.
Preferably, two sacrificial anodes are further arranged on the housing of the tension sensor.
Preferably, the main power supply is a local-end commercial power supply, a standby storage battery is further arranged in the local-end equipment box, and the standby storage battery can be automatically switched to supply power under the condition that the main power supply fails;
when the main power supply works normally and the electric quantity of the storage battery is lower than 80%, the storage battery is charged, and the system can normally run for seven days under the condition that the main power supply fails.
Preferably, a DTU module is also arranged in the local end equipment box;
the DTU module has the function of switching from serial port communication to 4G communication, receives data input from the serial port of the tension sensor and forwards the data to the remote server through the 4G network.
Preferably, the remote server comprises a data transmission module, a storage module, an analysis module and a query module;
the data transmission module is used for receiving and sending related data;
the storage module is used for storing data;
the analysis module is used for carrying a monitoring algorithm, taking data collected by the tension sensor and the current meter as input, and forming comprehensive tension research and judgment of the intercepting net under multiple data sources through data synchronization, screening and coupling processing;
and the query module is used for providing query service required by the client.
Preferably, the client is mainly used for completing real-time interaction with the user.
Preferably, the client comprises a monitoring result real-time display module, a historical data statistical analysis module, a monitoring daily alarm automatic generation module, a real-time pulling force over-line alarm module and a user authority hierarchical management module;
the monitoring result is displayed in real time and is used for providing a plurality of presentation modes such as numerical values, charts and the like for the monitoring result;
the historical data statistical analysis is used for providing multi-condition screening query of the historical data and supporting preliminary statistical analysis;
the monitoring daily report is automatically generated and used for automatically generating the monitoring daily report and briefly summarizing a monitoring key result on the day;
the real-time tension out-of-limit alarm is used for directly reminding related personnel of tension change needing to be warned by setting a tension monitoring alarm threshold;
and the user authority hierarchical management is used for setting the authority of the hierarchical management and carrying out corresponding authorization according to the working requirement.
The technical scheme of the invention has the following beneficial technical effects:
the invention adopts the self-developed wide-range tension sensor and develops the barrel-type high-strength tensile member, thereby overcoming the problem that the common tension sensor has small measuring range and is difficult to use on the interception net, and the monitoring results of current meters at two sides of the net body are used as auxiliary input for increasing the current condition under the comprehensive action of wind, wave, surge, tide and the like, filtering unstable environmental influence by combining a background algorithm and increasing the accuracy of tension monitoring data; and a networking mode of wired local end and wireless remote end is adopted, so that the deployment difficulty of monitoring equipment is reduced, and the adaptability to the severe working environment of a water intake is enhanced.
Drawings
Fig. 1 is a system block diagram of an online monitoring system for the tension of a blocking net in a nuclear power water intake sea area, which is provided by the invention.
Reference numerals: 1. a tension sensor; 2. current meters; 3. an on-site equipment box; 4. a remote server; 5. and (4) a client.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1, the system for monitoring the blocking net tension in the nuclear power water intake sea area provided by the invention comprises a tension sensor 1, a current meter 2, a local end equipment box 3, a remote end server 4 and a client 5;
the number of the tension sensors 1 is two, and the two tension sensors 1 are connected to two ends of the main headrope of the intercepting net in series; the number of the current meters 2 is two, the current meters are positioned at the front side and the rear side of the interception net body, and the two current meters 2 are positioned at the same level and the same depth;
a communication module is arranged in the local terminal equipment box 3, the input end of the communication module is connected with the tension sensor 1 and the current meter 2 in a wired mode, and the output end of the communication module is connected with the remote server 4 in a wireless mode; the remote server 4 is in communication connection with the client 5.
In an alternative embodiment, the tension sensor 1 is of a column-type design.
In an alternative embodiment, eight sets of strain cells are arranged in a patch manner along an axial circle in the barrel structure of the tension sensor 1, and each set of strain cells comprises one resistance strain gauge and one wheatstone bridge.
In an alternative embodiment, two sacrificial anodes are also provided on the housing of the tension sensor 1.
In an alternative embodiment, the main power supply is local-end commercial power, and a spare storage battery (containing a charger) is also arranged in the local-end equipment box 3, wherein the specification of the storage battery is 12V and 80AH, and the storage battery is provided with an adapter; the power supply can be automatically switched to the standby storage battery for power supply under the condition that the main power supply fails;
when the main power supply works normally and the electric quantity of the storage battery is lower than 80%, the storage battery is charged, and the system can normally run for seven days under the condition that the main power supply fails.
In an alternative embodiment, a DTU module is further disposed in the local-end equipment box 3;
the DTU module has the function of switching from serial port communication to 4G communication, receives data input from the serial port of the tension sensor 1, and forwards the data to the remote server 4 through a 4G network.
In an alternative embodiment, the remote server 4 comprises a data transmission module, a storage module, an analysis module and a query module;
the data transmission module is used for receiving and sending related data;
the storage module is used for storing data;
the analysis module is used for carrying a monitoring algorithm, taking data collected by the tension sensor 1 and the current meter 2 as input, and forming comprehensive analysis and judgment of the tension of the interception net under multiple data sources through data synchronization (time synchronization), screening (removing obvious noise) and coupling processing (data fusion);
and the query module is used for providing query services required by the client 5.
In an alternative embodiment, the client 5 is primarily used to accomplish real-time interaction with the user.
In an optional embodiment, the client 5 comprises a monitoring result real-time display module, a historical data statistical analysis module, a monitoring daily report automatic generation module, a real-time pulling force over-line alarm module and a user authority hierarchical management module;
the monitoring result is displayed in real time and is used for providing a plurality of presentation modes such as numerical values, charts and the like for the monitoring result;
the historical data statistical analysis is used for providing multi-condition screening query of the historical data and supporting preliminary statistical analysis;
the monitoring daily report is automatically generated and used for automatically generating the monitoring daily report and briefly summarizing a monitoring key result on the day;
the real-time tension out-of-limit alarm is used for directly reminding related personnel of tension change needing to be warned by setting a tension monitoring alarm threshold;
and the user authority hierarchical management is used for setting the authority of the hierarchical management and carrying out corresponding authorization according to the working requirement.
In an alternative embodiment, the tension sensor 1 is mounted as follows: the connecting lantern rings at the two ends of the tension sensor 1 are provided with D-shaped shackles and threaded lantern rings, wherein the D-shaped shackles are installed in a way that through holes with the diameter of 20mm at the two sides of the tension sensor are sleeved with retaining rings, the threaded lantern rings are installed in a way that M48 x 5 threaded hanging rings are respectively installed at the two sides of the body of the tension sensor 1, and steel anti-loosening gaskets are additionally arranged at interfaces to prevent the measured steel wire rope from being twisted to screw out the threaded parts of the hanging rings, so that the measuring precision and the mechanical performance are not influenced;
during installation, one end of the tension sensor 1 is connected with a reliable shore-end structure, and shackle connection or steel wire rope connection can be selected, wherein the steel wire rope is connected in a mode that the steel wire rope penetrates into a shackle/collar ring, a proper tail length is reserved, and a stainless steel wire rope chuck is used for fastening; then, the other end of the tension sensor is connected with the main headrope of the intercepting net in the mode, and an in-place end equipment box is installed by using connecting pieces such as expansion screws; and finally, connecting a data line and a power line at the T end of the tension sensor to the DTU serial port and the storage battery terminal respectively, and performing waterproof treatment on the equipment box by using glass cement.
According to the invention, the self-developed wide-range tension sensor 1 is adopted, and the barrel-type high-strength tensile member is developed, so that the problem that the general tension sensor 1 is difficult to use on an interception net due to small measuring range is solved, the monitoring results of the current meters 2 on two sides of the net body are used as auxiliary input to increase the current condition under the comprehensive action of wind, wave, surge, tide and the like, the unstable environmental influence is filtered by combining a background algorithm, and the accuracy of tension monitoring data is improved; and a networking mode of wired local end and wireless remote end is adopted, so that the deployment difficulty of monitoring equipment is reduced, and the adaptability to the severe working environment of a water intake is enhanced.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims (9)

1. A nuclear power water intaking sea area blocking net tension on-line monitoring system is characterized by comprising a tension sensor (1), a current meter (2), an on-site end equipment box (3), a far-end server (4) and a client (5);
the number of the tension sensors (1) is two, and the two tension sensors (1) are connected to two ends of the main rope of the intercepting net in series; the number of the current meters (2) is two, the current meters are positioned on the front side and the rear side of the interception net body, and the two current meters (2) are positioned at the same level and the same depth;
a communication module is arranged in the local terminal equipment box (3), the input end of the communication module is connected with the tension sensor (1) and the current meter (2) in a wired mode, and the output end of the communication module is connected with the remote server (4) in a wireless mode; the remote server (4) is in communication connection with the client (5).
2. The system for on-line monitoring of the tension of the blocking net in the nuclear power water intaking sea area according to claim 1, characterized in that the tension sensor (1) is designed in a column type.
3. The system for on-line monitoring of the tension of the blocking net in the nuclear power water intaking sea area according to claim 1, characterized in that eight groups of strain units are arranged in a barreled structure of the tension sensor (1) along an axial ring in a patch mode, and each group of strain units comprises a resistance strain gauge and a Wheatstone bridge.
4. The system for monitoring tension of the blocking net in the nuclear power water intaking sea area according to claim 1, characterized in that two sacrificial anodes are further arranged on a shell of the tension sensor (1).
5. The system for on-line monitoring of the pulling force of the blocking net in the nuclear power water intaking sea area according to claim 1, characterized in that a main power supply is a local-end commercial power supply, a standby storage battery is further arranged in a local-end equipment box (3), and the system can be automatically switched to the standby storage battery for power supply when the main power supply fails;
when the main power supply works normally and the electric quantity of the storage battery is lower than 80%, the storage battery is charged, and the system can normally run for seven days under the condition that the main power supply fails.
6. The system for on-line monitoring of the pulling force of the blocking net in the nuclear power water intaking sea area according to claim 1, characterized in that a DTU (data transfer unit) module is further arranged in the ground end equipment box (3);
the DTU module has the function of switching from serial port communication to 4G communication, receives data input from the serial port of the tension sensor 1, and forwards the data to the remote server 4 through a 4G network.
7. The system for on-line monitoring of the pulling force of the blocking net in the nuclear power water intaking sea area according to claim 1, wherein the remote server (4) comprises a data transmission module, a storage module, an analysis module and an inquiry module;
the data transmission module is used for receiving and sending related data;
the storage module is used for storing data;
the analysis module is used for carrying a monitoring algorithm, taking data collected by the tension sensor (1) and the current meter (2) as input, and forming comprehensive tension research and judgment of the interception net under multiple data sources through data synchronization, screening and coupling processing;
and the query module is used for providing query services required by the client (5).
8. The system for on-line monitoring of the pulling force of the blocking net in the nuclear power water intaking sea area according to claim 1, wherein the client 5 is mainly used for completing real-time interaction with a user.
9. The system for on-line monitoring of the blocking net pulling force in the nuclear power water intaking sea area according to claim 1, characterized in that the client (5) comprises a monitoring result real-time display module, a historical data statistical analysis module, a monitoring daily alarm automatic generation module, a real-time pulling force over-line alarm module and a user authority hierarchical management module;
the monitoring result is displayed in real time and is used for providing a plurality of presentation modes such as numerical values, charts and the like for the monitoring result;
the historical data statistical analysis is used for providing multi-condition screening query of the historical data and supporting preliminary statistical analysis;
the monitoring daily report is automatically generated and used for automatically generating the monitoring daily report and briefly summarizing a monitoring key result on the day;
the real-time tension out-of-limit alarm is used for directly reminding related personnel of tension change needing to be warned by setting a tension monitoring alarm threshold;
and the user authority hierarchical management is used for setting the authority of the hierarchical management and carrying out corresponding authorization according to the working requirement.
CN201911110861.4A 2019-11-14 2019-11-14 Nuclear power water intaking sea area block pulling force on-line monitoring system Active CN110887591B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113820061A (en) * 2021-08-23 2021-12-21 苏州热工研究院有限公司 Alarm method of interception net tension monitoring system

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Publication number Priority date Publication date Assignee Title
CN113820061A (en) * 2021-08-23 2021-12-21 苏州热工研究院有限公司 Alarm method of interception net tension monitoring system

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