KR101107259B1 - Method and system for measuring piping hanger rod load - Google Patents

Abstract

Disclosed are a pipe load measuring method and system for precisely measuring the response and load affecting a pipe of a pipe installed in a power plant or a petrochemical plant to improve the stability of the pipe and reduce the measurement cost. According to the present invention, a steel information database for measuring a tensile strain value and a noise value according to a type of steel having magnetic properties and matching and storing them by an experiment, and a sensor on a rigid support rod formed between a pipe and a pipe support device. Is installed, a noise information database for receiving and storing noise information measured by the sensor, a noise value corresponding to the noise information stored in the noise information database is found in the steel information database, and a tension corresponding to the noise value is obtained. Tensile strain information extraction module for obtaining a strain value, and load strain module for calculating the load of the pipe by multiplying the cross-sectional area after converting the tensile strain value obtained in the tensile strain information extraction module according to the steel properties Load measurement system comprising a It is a ball.

Piping Load, Tensile Strain, Stress

Description

METHOD AND SYSTEM FOR MEASURING PIPING HANGER ROD LOAD}

The present invention relates to a pipe load measuring method and system for precisely measuring the reaction and load affecting the pipe to the pipe installed in a power plant or a petrochemical plant to improve the stability of the pipe and reduce the measurement cost.

In general, various types of pipes are installed and operated in a thermal power plant, a nuclear power plant, a petrochemical plant, and the like so that fluids of high temperature and high pressure flow. The pipe is a pipe that serves to transport a certain amount of fluid from a device to a specific device within a predetermined time, and must be able to withstand internal pressure with a suitable diameter, and is suitable for elastic and plastic deformation. This is one of the important facilities to ensure that no leaks occur.

In general, the process of checking the load of the pipe position in the state in which the pipe and the pipe support device are connected is essentially performed, in order to ensure the safety of power generation and petroleum equipment flowing fluid of high temperature and high pressure. Until now, the method of measuring the load of a pipe has separated the pipe and the pipe support device, and applied the load applied to the pipe support device through the separate equipment to the pipe to measure the load concentrated on the pipe.

However, the measurement method as described above has a problem that it is difficult to efficiently measure and manage loads applied to a plurality of pipe support devices due to a long time, a place of a certain size for measurement, and high cost.

The present invention has been made to solve the above-mentioned conventional problems, and a method and system for measuring the load of the strategic and objective pipe using noise generated from the rigid support rod formed between the pipe and the pipe support device instead of the pipe. The purpose is to provide.

In order to accomplish the objects of the present invention as described above and to carry out the characteristic functions of the present invention described below, features of the present invention are as follows.

According to an aspect of the present invention, (a) measuring the tensile strain value and the noise value according to the type of steel having a magnetic steel information database, and matching and storing the mutual relationship by experiment, (b) noise information When the sensor is installed on a rigid support rod formed between the pipe and the pipe support device, receiving and storing the noise information measured by the sensor, (c) the tensile strain information extraction module is stored in the noise information database Obtaining a tensile strain value corresponding to the noise value by finding a noise value corresponding to the noise information in the steel information database, and (d) obtaining a tensile strain value obtained by the load strain module from the tensile strain information extraction module. After converting the stress value according to the steel properties, the cross-sectional area is multiplied by A load measuring method is provided comprising the step of calculating.

In the step (a), the sensor can be used for load measurement by receiving the noise measured by the magnetic field, which is changed according to the material and the temperature of the rigid support rod.

In addition, according to another aspect of the present invention, between the steel information database, pipe and pipe support device for measuring the tensile strain value and the noise value according to the type of steel having magnetic properties, matching and storing the mutual relationship by the experiment When the sensor is installed in the rigid support rod formed in the sensor, the noise information database for receiving and storing the noise information measured by the sensor, the noise value corresponding to the noise information stored in the noise information database is found in the steel information database The tensile strain information extraction module for obtaining a tensile strain value corresponding to the noise value, and the tensile strain value obtained in the tensile strain information extraction module is converted into a stress value according to the steel properties, and then multiplied by the cross-sectional area to load the pipe. The load calculation module for calculating the A load measurement system is provided.

The noise information database may be used for load measurement when the sensor measures noise caused by a magnetic field that varies according to the material and temperature of the rigid support rod.

According to the present invention, by indirectly confirming the load values for the steel materials having the tensile load, as well as the piping of the thermal power, cogeneration and petrochemical plants, and the cooling system piping of the nuclear power plant, the risk is large and the cost is high. Compared to conventional methods, which are expensive, the effect of measuring pipe loads accurately and quickly is achieved at low cost.

The above method is applied to both power generation and petrochemical plant facilities, as well as piping through which high temperature and high pressure fluid flows, and an effect that greatly contributes to securing stability of large-scale facilities is achieved.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It is to be understood that the various embodiments of the invention are different, but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention with respect to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention.

1 is a view showing the entire system for measuring the load of the steel support rod according to an embodiment of the present invention by way of example.

As shown in FIG. 1, according to one embodiment of the present invention, the entire system 100 for measuring the load of the steel support rod includes a pipe 110 for moving a high temperature and high pressure fluid therein, and the pipe 110. And a pipe support device 120 formed at an upper portion of the pipe support 110 to support the pipe 110 so that the pipe 110 is not twisted even when the pipe 110 is deformed by thermal expansion, between the pipe 110 and the pipe support device 120. The steel support rod 130 is formed in the connection to the pipe support 110, and fixed to the pipe support device 120, the sensor 140 is installed on the steel support rod 130, for example, a noise measurement sensor, and the noise measurement sensor The load measurement system 150 receives noise measurement information from the 140 and analyzes and measures the stress and the load of the pipe in a systematic and indirect manner.

Here, after the magnetic field is induced in the steel support rod 130 by fluid movement at high temperature and high pressure, noise is generated by the magnetic field, which is measured by the sensor 140. At this time, the noise data is a steel characteristic of the steel support rod subjected to tension, the higher the tensile force is generated a higher noise. After all, it is as if the tensile force value can be confirmed through the amplitude of the noise.

As such, the noise information measured by the sensor 140 is provided to the load measuring system 150, thereby indirectly loading the pipe load through the noise information measured from the steel support rod in the load measuring system 150 which is a feature of the present invention. It is used to measure pipe loads on a regular basis. Hereinafter, the load measurement system 150 will be described in more detail.

2 is a configuration diagram exemplarily illustrating a load measuring system 150 according to an embodiment of the present invention.

As shown in Figure 2, the load measurement system 150 according to an embodiment of the present invention is a steel information database 151, noise information database 152, tensile strain information extraction module 153, load calculation module ( 154 and the load control module 155.

First, the steel information database 151 of the present invention measures the tensile strain value and the noise value according to the type of steel having magnetic properties, and performs a function of matching and storing mutual relations by experiment. Here, the correlation between the tensile strain value and the noise magnitude may be displayed in the form of a graph as shown in FIG. 3 by experiment.

That is, FIG. 3 is a result of applying tensile force to various types of steel to generate tensile strain, and summarizing amplitude magnitudes of noise caused by magnetic fields. As shown in FIG. 3, when the tensile force is applied, the greater the tensile force, the greater the magnitude of the noise. Thus, the tensile strain value and the noise magnitude may be matched with each other.

Returning again, the noise information database 152 of the present invention receives and stores the noise information measured by the sensor when the sensor is installed on the rigid support rod formed between the pipe and the pipe support device described above with reference to FIG. 1. Perform the function.

Next, the tensile strain information extraction module 153 of the present invention finds a noise value in the steel information database 151 corresponding to the noise information stored in the noise information database 152, and corresponds to the noise value. The tensile strain value is obtained from the steel information database 151 to perform a function.

Next, the load calculation module 154 of the present invention converts the tensile strain value obtained from the tensile strain information extraction module 153 into a stress value according to the corresponding steel properties, and then multiply the cross-sectional area to stress the steel support rod 130. And calculate the load. At this time, the result value calculated by multiplying the cross-sectional area is a load concentrated on the steel support rod 130 and coincides with the total load imposed on the pipe at the corresponding position, such as the weight and fluid load of the pipe, and eventually the steel support rod 130 Using the magnitude of the noise generated in), it is possible to measure the stress and the load of the pipe in a political and indirect manner.

Finally, the load control module 155 of the present invention controls the mutual data flow between the steel information database 151, the noise information database 152, the tensile strain information extraction module 153, and the load calculation module 154 Perform the function.

The load measuring methods by the load measuring system 150 described above with reference to FIG. 2 may be implemented in the form of program instructions that may be executed by various computer components, and may be recorded in a computer-readable recording medium. The computer-readable recording medium may also include program instructions, data files, data structures, etc. alone or in combination.

Program instructions recorded on the computer-readable recording medium may be those specially designed and constructed for the present invention, or may be known and available to those skilled in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tape, optical recording media such as CD-ROMs, DVDs, and magneto-optical media such as floptical disks. media), and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device may be configured to operate as one or more software modules to perform the process according to the invention, and vice versa.

1 is a view showing the entire system for measuring the load of the steel support rod according to an embodiment of the present invention by way of example.

2 is a configuration diagram exemplarily illustrating a load measuring system 150 according to an embodiment of the present invention.

3 is a graph showing a correlation between tensile strain and noise according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

150: load measurement system 151: steel information database

152: noise information database 153: tensile strain information extraction module

154: load calculation module 155: and the load control module

Claims (4)

In the method of measuring the load of a pipe using the steel information database stored in the memory by measuring the tensile strain value and the noise value according to the type of the steel support rod having magnetic properties, matching each corresponding value by experiment, (a) The magnetic field is generated by the movement of the fluid at high temperature and high pressure, and noise generated by the generated magnetic field is fixed to the steel support rod installed between the pipe 110 and the pipe support device 120. Measuring with; (b) Obtain and obtain a tensile strain value corresponding to a noise value measured by the noise measuring sensor using a tensile strain information extraction module from a steel information database stored by matching tensile strain values and noise values with corresponding values. Making; And (c) converting the tensile strain value obtained from the tensile strain information extraction module using the load calculation module into a stress value according to the steel properties, and then multiplying the cross-sectional area to calculate the load of the pipe. The method of claim 1, In the step (a), the noise measurement sensor 140 is characterized in that the load measurement method characterized in that the noise received by the magnetic field that changes depending on the material and temperature of the steel support rod. In the load measurement system that measures the tensile strain value and the noise value according to the type of magnetic steel, and loads the steel information database stored in the memory by matching each corresponding value by experiment and calculating the pipe load , A magnetic field is generated due to fluid movement at high temperature and high pressure, and is fixed to a steel support rod installed between the pipe 110 and the pipe support device 120 to measure the noise generated by the generated magnetic field. ); A tensile strain information extraction module for finding and obtaining a tensile strain value corresponding to the noise value measured by the noise measuring sensor from a steel information database which matches and stores the tensile strain value and the noise value with corresponding values; And And a load calculation module for converting the tensile strain value obtained from the tensile strain information extraction module into a stress value according to the properties of the steel support rod, and multiplying the cross-sectional area to calculate the load of the pipe. The method of claim 3, The noise measuring sensor is a load measuring system, characterized in that the magnetic field changes according to the material and temperature of the steel support rod, and measuring the noise generated by the changed magnetic field to provide an input to the load measuring system.

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