CN110196144B - Intelligent monitoring system for leakage characteristic data of deep water umbilical cable based on virtual instrument - Google Patents
Intelligent monitoring system for leakage characteristic data of deep water umbilical cable based on virtual instrument Download PDFInfo
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- CN110196144B CN110196144B CN201910510013.6A CN201910510013A CN110196144B CN 110196144 B CN110196144 B CN 110196144B CN 201910510013 A CN201910510013 A CN 201910510013A CN 110196144 B CN110196144 B CN 110196144B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2838—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for cables
Abstract
The invention relates to a deepwater umbilical cable leakage characteristic data intelligent monitoring system based on a virtual instrument, which is characterized by comprising the following components: the data reading unit is used for reading the running state data of the umbilical cable hydraulic control or chemical agent injection system; the data preprocessing unit is used for obtaining the running state characteristic data of the umbilical cable; the data monitoring and early warning unit is used for early warning the running state characteristic data exceeding a preset early warning threshold value; the leakage monitoring and positioning unit is used for obtaining the leakage position of the umbilical cable; the monitoring system leakage handling action unit is used for carrying out isolation processing on the umbilical cable with leakage; the data export unit is used for exporting the running state characteristic data of the umbilical cable and storing the running state characteristic data to a specified data format file; the operation log unit is used for writing all information generated in the data monitoring process into the corresponding operation log in real time and storing the information into the corresponding operation log.
Description
Technical Field
The invention relates to a virtual instrument-based intelligent monitoring system for deep water umbilical cable leakage characteristic data, and belongs to the field of umbilical cable leakage fault diagnosis.
Background
The leakage detection of the deepwater umbilical cable hydraulic control or chemical agent injection system is mainly used for carrying out simulation prediction and simulation on the leakage position of the deepwater umbilical cable. The traditional leakage detection method of the deepwater umbilical cable hydraulic control or chemical agent injection system is based on the change of oil supply pressure, a coloring agent is added into an oil supply tank, and the detection and the positioning are completed by means of a Remote Operated Vehicle (ROV), so that the external detection method is accurate in detection and positioning.
In the prior art, a model simulation-based leakage detection and positioning method for a deepwater umbilical cable hydraulic control or chemical agent injection system is disclosed, wherein a leakage point position is subjected to analog simulation prediction according to a calibrated high-reliability model, and then a leakage detection test is carried out by matching with testers and ROV equipment. The method can effectively reduce the obstacle removing range, save a large amount of time and cost for underwater equipment inspection, can complete single-point leakage positioning through application software installed on the water module, has good practicability, and only needs to update characteristic data models of different deepwater systems. The method mainly comprises two stages: 1) calibrating the standard working condition of the simulation model based on the test data, and building an accurate deepwater hydraulic control system simulation model; 2) and (4) carrying out leakage point detection and positioning analysis by using the constructed deepwater hydraulic control model and the detection data. However, the method is time-consuming and labor-intensive, and cannot be monitored online in real time.
Disclosure of Invention
In view of the above problems, the present invention aims to provide an intelligent monitoring system for leakage characteristic data of a deepwater umbilical cable based on a virtual instrument, which can perform online real-time monitoring.
In order to achieve the purpose, the invention adopts the following technical scheme: deep water umbilical cable leaks characteristic data intelligent monitoring system based on virtual instrument, its characterized in that, this intelligent monitoring system includes: the data reading unit is used for reading the running state data of the umbilical cable hydraulic control or chemical agent injection system; the data preprocessing unit is used for carrying out real-time filtering processing on the running state data to obtain the running state characteristic data of the umbilical cable; the data monitoring and early warning unit is used for presetting an early warning threshold value, carrying out threshold value analysis on the running state characteristic data according to the preset early warning threshold value and carrying out early warning on the running state characteristic data exceeding the preset early warning threshold value; the leakage monitoring and positioning unit is used for obtaining the leakage position of the umbilical cable according to pressure data at two ends of the umbilical cable provided by a user or real-time obtained running state characteristic data and displaying the leakage position; the monitoring system leakage handling action unit is used for carrying out isolation processing on the umbilical cable with leakage according to a threshold value analysis result, the leakage position of the umbilical cable and pressure data of two ends of the umbilical cable provided by a user; the data export unit is used for exporting the running state characteristic data of the umbilical cable and storing the running state characteristic data to a specified data format file; and the operation log unit is used for writing all the information generated in the data monitoring process into the corresponding operation log in real time and storing the information into the corresponding operation log.
Furthermore, the intelligent monitoring system also comprises a display unit which is used for displaying the real-time curve and the digital display running state data and carrying out multifunctional editing on the displayed curve running state data.
Further, the multi-function editing includes line style, line width, point style, line color, local scaling, curve lock screen, histogram, interpolation, and smoothing.
Further, the operation state data comprises outlet pressure of the hydraulic pump, upper pressure of the ocean platform and end pressure of the underwater Christmas tree.
Further, the characteristic data of the operating state of the umbilical cable comprises a high-low pressure steady-state value of the umbilical cable, a pressure change rate, a change rate of the pressure change rate, a pressure fluctuation cycle/frequency, a pressure build-up/pressure release initial point moment and a pressure build-up/pressure release end point moment.
Due to the adoption of the technical scheme, the invention has the following advantages: the invention is based on a virtual instrument, and is provided with a data reading unit, a data monitoring and early warning unit, a leakage monitoring and positioning unit and a monitoring system leakage handling action unit, thereby realizing real-time monitoring and data processing of a deepwater dynamic umbilical cable hydraulic control or chemical agent injection system, fully utilizing the powerful operation processing function of a computer, organically combining real physical information with the computer, realizing analog simulation of the deepwater umbilical cable working operation environment, breaking through the data processing, displaying and transmitting of the traditional instrument, the method has the advantages of good stability, strong universality, easy function expansion, short development period, low development cost and the like, and can be widely applied to the field of leakage fault diagnosis of the umbilical cables.
Drawings
FIG. 1 is a schematic flow diagram of the system of the present invention.
Detailed Description
The present invention is described in detail below with reference to the attached drawings. It is to be understood, however, that the drawings are provided solely for the purposes of promoting an understanding of the invention and that they are not to be construed as limiting the invention.
As shown in fig. 1, the intelligent monitoring system for leakage characteristic data of deep water umbilical cable based on virtual instrument provided by the invention realizes complex mathematical operation and analysis processing based on virtual instrument, and comprises a data acquisition module 1 and a data analysis processing module 2, wherein the data acquisition module 1 comprises a data reading unit 11 and a display unit 12, and the data analysis processing module 2 comprises a data preprocessing unit 21, a data monitoring and early warning unit 22, a leakage monitoring and positioning unit 23, a monitoring system leakage handling action unit 24, a data export unit 25 and an operation log unit.
The data reading unit 11 is configured to read operation state data of the umbilical cable hydraulic control or chemical agent injection system, and perform format conversion and other processing on the read data, where the operation state data includes data such as hydraulic pump outlet pressure, pressure at the upper portion of the ocean platform, and pressure at the end of the subsea tree, and the data may be in related formats such as Excel, XML, txt, and the like.
The display unit 12 is used for real-time curve display and digital display of the running state data, and performs multifunctional editing on the displayed curve running state data, including functions of line style, line width, point style, line color, local scaling, curve screen locking, histogram, interpolation, smoothing and the like.
The data preprocessing unit 21 is configured to perform real-time filtering processing on the operation state data by using a data processing method disclosed in the prior art, remove noise interference, and obtain operation state characteristic data of the umbilical cable, where the operation state characteristic data of the umbilical cable includes an umbilical cable high-low pressure steady-state value, a pressure change rate (1-order derivative), a pressure change rate (2-order derivative), a pressure fluctuation period/frequency, a pressure build-up/pressure release initial point time, a pressure build-up/pressure release end point time, and the like.
The data monitoring and early warning unit 22 is configured to preset an early warning threshold, perform threshold analysis on the operating state feature data according to the preset early warning threshold, and perform early warning on the operating state feature data exceeding the preset early warning threshold.
The leakage monitoring and positioning unit 23 is configured to obtain a leakage position of the umbilical cable according to pressure data at two ends of the umbilical cable provided by a user or running state characteristic data obtained in real time, and display the leakage position.
The monitoring system leakage handling action unit 24 is configured to perform isolation processing on the umbilical cable with the leakage according to the threshold analysis result, the leakage position of the umbilical cable, and pressure data provided by the user at two ends of the umbilical cable, for example, close a leakage oil path, and simultaneously start a backup oil path.
The data export unit 25 is used for exporting and saving the operating state characteristic data of the umbilical cable to a specified data format file.
And the operation log unit is used for writing all information generated in the data monitoring process into the corresponding operation log in real time and storing the information into the corresponding operation log.
The use process of the intelligent monitoring system for the leakage characteristic data of the deep water umbilical cable based on the virtual instrument is described in detail through the specific embodiment as follows:
1) the data reading unit 11 reads the operation state data (including the outlet pressure of the hydraulic pump, the upper pressure of the ocean platform, the end pressure of the underwater Christmas tree, and the like) of the umbilical cable hydraulic control or chemical agent injection system, and displays the read operation state data in a curve or digital manner in real time through the display unit 12 by data format conversion.
2) The data preprocessing unit 21 performs filtering processing on the read running state data, removes noise interference, and obtains running state characteristic data of the umbilical cable, where the running state characteristic data mainly includes umbilical cable high and low pressure steady-state values, pressure change rate (1-order derivative), pressure change rate (2-order derivative), pressure fluctuation cycle/frequency, pressure build/pressure release initial point time, pressure build/pressure release end point time, and the like.
3) Meanwhile, the data monitoring and early warning unit 22 sets an early warning threshold in advance, performs threshold analysis on the operation state characteristic data according to the preset early warning threshold, and performs early warning on the operation state characteristic data exceeding the preset early warning threshold.
4) The leakage monitoring and positioning unit 23 obtains and displays the leakage position of the umbilical cable according to the pressure data at the two ends of the umbilical cable provided by the user or the running state characteristic data obtained in real time.
5) The monitoring system leakage handling action unit 24 performs isolation processing on the umbilical cable with the leakage event according to the threshold analysis result, the leakage position of the umbilical cable and the pressure data at the two ends of the umbilical cable of the user.
The above embodiments are only used for illustrating the present invention, and the structure, connection mode, manufacturing process, etc. of the components may be changed, and all equivalent changes and modifications performed on the basis of the technical solution of the present invention should not be excluded from the protection scope of the present invention.
Claims (4)
1. Deep water umbilical cable leaks characteristic data intelligent monitoring system based on virtual instrument, its characterized in that, this intelligent monitoring system includes:
the data reading unit is used for reading the running state data of the umbilical cable hydraulic control or chemical agent injection system;
the data preprocessing unit is used for carrying out real-time filtering processing on the running state data to obtain the running state characteristic data of the umbilical cable, wherein the running state characteristic data of the umbilical cable comprises an umbilical cable high-low pressure steady state value, a pressure change rate, a pressure fluctuation cycle/frequency, a pressure build-up/pressure release initial point moment and a pressure build-up/pressure release end point moment;
the data monitoring and early warning unit is used for presetting an early warning threshold value, carrying out threshold value analysis on the running state characteristic data according to the preset early warning threshold value and carrying out early warning on the running state characteristic data exceeding the preset early warning threshold value;
the leakage monitoring and positioning unit is used for obtaining the leakage position of the umbilical cable according to pressure data at two ends of the umbilical cable provided by a user or real-time obtained running state characteristic data and displaying the leakage position;
the monitoring system leakage handling action unit is used for carrying out isolation processing on the umbilical cable with leakage according to a threshold value analysis result, the leakage position of the umbilical cable and pressure data of two ends of the umbilical cable provided by a user;
the data export unit is used for exporting the running state characteristic data of the umbilical cable and storing the running state characteristic data to a specified data format file;
and the operation log unit is used for writing all the information generated in the data monitoring process into the corresponding operation log in real time and storing the information into the corresponding operation log.
2. The deep water umbilical cable leakage characteristic data intelligent monitoring system based on virtual instrument as claimed in claim 1, wherein the intelligent monitoring system further includes a display unit for real time curve display and digital display of operation status data, and performing multifunctional editing on the displayed curve operation status data.
3. The virtual instrument based intelligent monitoring system for deep water umbilical cable leakage characteristic data as claimed in claim 2, wherein the multi-functional editing includes line style, line width, point style, line color, local scaling, curve screen locking, histogram, interpolation and smoothing.
4. The deep water umbilical cable leakage characteristic data intelligent monitoring system based on virtual instruments as claimed in claim 1, wherein the operation state data comprises hydraulic pump outlet pressure, offshore platform upper pressure and subsea tree end pressure.
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