JP2001116544A - Deformation monitor for structure member surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deformation monitor for a structure member surface capable of monitoring deformation of actual structure members continuously and stably for a long period in high temperature of ca. 450 deg.C or higher which causes creep phenomenon in a steel material. SOLUTION: A monitor comprises a temperature detection means 3 placed on the structure member 20 surface and continuously detecting the temperature on structure member surface, a first deformation detection means 4 continuously detecting deformation of the structure member surface, a second deformation detection means 5 intermittently or periodically detecting deformation of the structure member surface, a first deformation operation means 6 operating the deformation quantity of the structure member surface based on the deformation information of the structure member surface detected by the first deformation detection means, a second deformation operation means operating the deformation quantity of the structure member surface based on the deformation information of the structure member surface detected by the second deformation detection means, a deformation quantity correction means 8 correcting the operation results of the deformation quantity of the structure member surface by the first deformation operation means based on the operation means for deformation quantity of the structure member surface by the second deformation operation means and an indication means 9 indicating the deformation quantity operation results of the structure member surface by the first deformation quantity operation means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface of a structural member for continuously monitoring, over a long period of time, a deformation which progresses with time on the surface of a steam turbine, a gas turbine, a boiler or other equipment used at a high temperature. The present invention relates to a deformation monitoring device.

[0002]

2. Description of the Related Art Steam turbines, gas turbines, boilers,
The components of other devices used at high temperatures are made of steel material. Stress such as pressure due to the working fluid of the device or thermal stress caused by a temperature difference mainly acts on these components for a long time at a high temperature. As a result, the deformation progresses irreversibly, mainly due to the creep phenomenon, eventually causing cracks to grow and grow, causing the members to burst, and further affecting the society as the cracks penetrate the thickness of the members. Could lead to serious accidents. Therefore, if it is possible to continuously monitor the progress of temporal deformation of a member which is a precursor phenomenon before such a serious accident occurs, the significance is extremely large.

[0003]

However, a method for stably and continuously monitoring the deformation of an actual structural member for a long period of time at a high temperature of about 450 ° C. or more at which a creep phenomenon occurs in a steel material. There is no. For example, the resistance wire strain gauge method is effective for monitoring deformation in a temperature range up to about 200 ° C., but cannot be used in the above creep temperature range because it is out of the applicable range. Further, a high-temperature strain gauge capable of detecting deformation at a high temperature has a short service life of at most several tens of days, and cannot be used for long-term deformation monitoring.

Accordingly, the present invention provides a structural member surface capable of stably and continuously monitoring deformation of an actual structural member for a long period of time at a high temperature of about 450 ° C. or more at which a creep phenomenon occurs in a steel material. It is an object of the present invention to provide a deformation monitoring device.

[0005]

According to a first aspect of the present invention, there is provided a temperature detecting means for detecting a temperature on a surface of a structural member by installing the structural member at a portion where the deformation is considered to proceed, A first deformation detecting means for constantly detecting an irreversible deformation progressing with time, and a second deformation detecting means for periodically or intermittently detecting an irreversible deformation progressing with time in the portion or its vicinity. Two deformation detecting means, and
The first and second converting means converts the detection amount detected by the first and second deformation detecting means into the deformation amount of the surface of the structural member.
Deformation amount calculating means, further intermittently, or the second deformation detecting means to detect and calculate periodically, and the deformation amount of the structural member surface obtained by the deformation amount calculating means as a positive,
A first deformation detecting means, and a deformation amount correcting means for correcting the deformation amount of the surface of the structure obtained by the deformation amount calculating means, wherein the deformation amount correcting means intermittently or periodically corrects the deformation amount based on the deformation amount. Further, the first deformation amount calculating means has a display means for displaying the deformation amount of the surface of the structure, which is continuously detected and calculated during the subsequent use of the structural member.

A second invention according to the present invention relates to a configuration of the first deformation detecting means, wherein a thin plate of an electrically insulating material having deformability and heat resistance, a thin plate having deformability and heat resistance are provided. It consists of a thin plate of a metal material having corrosion resistance and a conductive wire of a metal material having heat resistance and corrosion resistance.The thin plate of the electrically insulating material is installed on the surface of the structural member. A thin plate of the material is installed, and is configured to be deformed following the deformation of the surface of the structural member. Conductive wires of the metal material are connected to both ends of the thin plate of the metal material, and the thin plate of the metal material is connected thereto. And detects a change in the electrical resistance of the thin plate of the metal material generated following the deformation of the surface of the structural member in a high temperature state.

A third invention according to the present invention relates to another structure of the first deformation detecting means, wherein a thin plate of an electrically insulating material having deformability and heat resistance, and a thin plate having deformability and heat resistance are combined. A plurality of thin sheets of a metal material having corrosion resistance, and a heat-resistant, conductive wire of a metal material having corrosion resistance, the thin sheet of the electrically insulating material is installed on the surface of the structural member, and further on the thin sheet of the electrically insulating material. The plurality of metal material thin plates are spatially arranged in parallel, electrically connected in series using the metal material conducting wire, and the plurality of metal material thin plates arranged in parallel are arranged on the surface of the structural member. It is configured to deform following the deformation of, and arranged in parallel in space, electrically connected in series to the ends of a plurality of thin plates of the metal material electrically connected in series, through which While passing electric current through the thin plates of the plurality of metal materials, And it detects the deformation total change in the electrical resistance of the thin plate of the plurality of metallic materials caused to follow the surface of the structural member with warm state.

A fourth invention according to the present invention relates to the configuration of the first deformation amount calculating means, and is an output signal of the temperature detecting means provided on a surface of a portion where the deformation of a structural member is considered to progress. The amount of deformation of the surface of the structural member is sequentially calculated from the voltage and the voltage which is the output signal corresponding to the deformation from the first deformation detecting means. The predetermined temperature is determined in advance by an experimental or analytical method. A database that defines a relationship between a voltage change and a deformation amount that is different for each is built in, and a relationship between a predetermined voltage change and a deformation amount is selected in light of a voltage that is an output signal of the temperature detecting means, and the surface of the structural member is selected. First
This is for calculating the deformation of the part where the deformation detecting means is installed.

A fifth invention according to the present invention relates to the configuration of the second deformation detecting means, wherein the second deformation detecting means comprises a thin plate of a metal material having deformability, heat resistance and corrosion resistance. A plurality of minute irregularities are machined on one surface of the thin plate, and the surface opposite to the surface on which the irregularities are machined contacts the surface of a portion where the deformation of the structural member is considered to proceed in a high temperature state, and the metal material Is disposed on the surface of the structural member so as to follow the deformation of the surface of the structural member.

A sixth invention according to the present invention relates to the configuration of the second deformation amount calculating means, wherein the second deformation amount calculating means is provided on the surface of a portion where the deformation of the structural member is considered to progress or on the surface in the vicinity thereof. A thin plate of a heat-resistant and corrosion-resistant metal material having deformability, which is a deformation detecting means, and a plurality of minute unevennesses are formed on one surface of the thin plate of the heat-resistant and corrosion-resistant metal material, and the plurality of minute unevennesses are machined. Place the opposite side of one side of the sheet of material in contact with the surface of the structural member,
So as to deform following the deformation of the surface of the structural member,
On the surface of the heat-resistant and corrosion-resistant metal material plate provided with minute irregularities, the imaging means captures an image of the surface of the thin plate of the heat-resistant and corrosion-resistant metal material, and outputs image information. The image information is output as image information. Image processing is performed by the processing means to extract a plurality of minute images of the irregularities, and the amount of deformation of the surface of the structural member is calculated from the irregularities images extracted by the image processing means as a relative distance between the irregularities images. Things.

A seventh invention according to the present invention relates to the configuration of the second deformation detecting means, wherein the second deformation is provided on a surface of a portion where the deformation of a structural member is considered to progress or a surface near the portion. A thin plate of a heat-resistant and corrosion-resistant metal material having deformability that is a detecting means, a plurality of minute irregularities are processed on one side of the thin plate of the heat-resistant and corrosion-resistant metal material, and the heat-resistant corrosion-resistant metal material is formed by processing a plurality of minute irregularities. The opposite side of one side of the thin plate is installed so as to be in contact with the surface of the structural member, so as to deform following the deformation of the surface of the structural member, and on the surface of the heat-resistant and corrosion-resistant metal material plate on which fine irregularities are provided,
A plastic film immersed in a solvent and softened is attached, the surface of the micro-roughness image transferred to the plastic film is imaged, video information is output, and the video information output from the visualization means by the image processing means The image processing is performed to extract a plurality of minute transferred images of the unevenness, and from the transferred image of the unevenness extracted by the image processing means, the relative distance between the transferred images of the unevenness is determined as the relative distance of the surface of the structural member. This is for calculating the amount of deformation.

An eighth invention according to the present invention relates to the first deformation detecting means and the second deformation detecting means, wherein the first deformation detecting means and the second deformation detecting means are integrally formed. It consists of a thin plate of an electrical insulating material having deformability and heat resistance, a thin plate of a metal material having deformability and heat resistance and heat resistance, and a conductive wire of a metal material having heat resistance and corrosion resistance. Installing the thin plate of the electrical insulating material on the surface of the structural member, installing the thin plate of the metallic material on the thin plate of the electrical insulating material, and connecting the conductive wires of the metallic material to both ends of the thin plate of the metallic material Then, a current is passed through the thin plate of the metal material through this, and a change in the electrical resistance of the thin plate of the metal material generated following the deformation of the surface of the structural member is detected by the deformation detecting means. , The thin plate of the metal material A plurality of minute irregularities are created on the surface opposite to the surface in contact with the air insulating material, and the minute plural irregularities resulting from the deformation following the deformation of the surface of the structural member are imaged by the imaging means. Outputting video information, performing image processing on the video information output from the imaging means by image processing means to extract a plurality of minute images of the irregularities, and extracting the images of the irregularities extracted by the image processing means. What allows the amount of deformation of the surface of the structural member to be calculated as the relative distance between the uneven images, or by immersing the plurality of minute unevenness resulting from the deformation following the deformation of the structural member in a solvent The softened plastic film is affixed, transferred to the plastic film, the transferred image of the plurality of minute irregularities is captured by the imaging means, and the video information is output. Image information is subjected to image processing by an image processing means to extract a plurality of minute transferred images of the irregularities, and calculate the amount of deformation of the surface of the structural member as a relative distance between the irregularities from the transferred image. It is.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a structural member surface deformation monitoring apparatus according to an embodiment of the present invention. That is,
A temperature detecting device 3 and a first deformation detecting device 4 are installed at a predetermined position 1 on a predetermined surface of a predetermined structural member 20, and a second deformation detecting device 5 is provided near the region 1 on the surface of the structural member. It is installed in the part 2 mechanically and environmentally equivalent to the part 1,
The first deformation amount calculating device 6 is connected to the deformation detecting device 4, and the second deformation amount calculating device 7 is connected to the second deformation detecting device 5.
Is connected to the first deformation amount calculating device 6 and the second deformation amount calculating device 7, and a deformation amount correcting device 8 is further connected.
The display device 9 is connected to the deformation amount calculation device 6.

FIG. 2 shows a configuration of a first deformation detecting device 4 in the deformation monitoring device for the surface of the structural member shown in FIG. That is, a thin plate 10 of an electrically insulating material having deformability and heat resistance, a thin plate 11 of a metal material having deformability, heat resistance and corrosion resistance, and a conductive wire 12 of a metal material having heat resistance and corrosion resistance are provided. The thin plate 10 is placed on the portion 1 on the surface of the structural member 20, and a thin plate 11 made of a metal material is placed on the thin plate 10 made of an electrically insulating material. Sheet of metal material
A conductive wire 12 made of a metal material is connected to both ends of 11, through which electric current is supplied to the thin plate 11 made of the metal material.

Since the thin plate 10 made of an electrically insulating material is made of a material having deformability, when the portion 1 on the surface of the structural member 20 is deformed in a high temperature state, it is deformed in accordance with the deformation. Further, since the thin plate 11 made of a metal material also has a deformability, the thin plate 11 made of an electrically insulating material is deformed in accordance with the deformation of the thin plate 10, and accordingly, the electric resistance is changed and the flowing current i is changed. Therefore, the detection resistor
A voltage change occurs at both ends.

In this manner, the portion 1 on the surface of the structural member 20
Deformation of the sheet 10 of the electrically insulating material and deformation of the sheet 11 of the metal material, resulting in a change in the electrical resistance of the sheet 11 of the metal material, and thus a change in the voltage. Can be detected. Moreover, since all of the thin plate 10 of the electrically insulating material, the thin plate 11 of the metal material, and the conductive wire 12 of the metal material have heat resistance and corrosion resistance, they do not generate oxidation, corrosion, etc. even when used for a long time at a high temperature. Thus, the deformation of the portion 1 on the surface of the structural member 20 can be stably detected.

FIG. 3 shows a specific configuration example of the deformation detecting device 4 of the structural member surface deformation detecting device shown in FIG. That is, a thin plate 10 of an electrically insulating material having deformability and heat resistance, a thin plate 11 of a metal material having deformability, heat resistance and corrosion resistance, and a conductive wire 12 of a metal material having heat resistance and corrosion resistance are provided. On the thin plate 10, a plurality of thin plates 11 of a metal material are spatially arranged in parallel.
The thin plates 11 of each metal material are electrically connected in series by a conductive wire 12 of a metal material, and a current is supplied to the plurality of thin plates 11 of the metal material connected in series by the conductive wire 12 of the metal material.

When the deformation detecting device 4 having such a configuration is installed on the surface of the structural member 20, the structural member 4 in a high temperature state
The deformation of the surface of the member 20 causes the deformation of the thin plate 11 of the electrically insulating material, and the deformation of the surface of the structural member 20 can be detected as a larger output voltage change by the conductive wire 12 of the metal material.

FIG. 4 shows another structure of the deformation detecting device 5 of the structural member surface deformation detecting device shown in FIG. That is, it is composed of a thin plate 11 of a metal material having deformability, heat resistance, and corrosion resistance, and has a structure in which a plurality of minute irregularities 13 are provided on one surface of the thin plate 11, and the opposite side of the surface on which the irregularities 13 are provided. Is in contact with the surface of the portion 2,
It is configured to deform following the deformation of the part 2.

Since the thin plate 11 made of a metal material has deformability, heat resistance and corrosion resistance, the geometrical shape of the unevenness 13 is not damaged even if it is used for a long time at a high temperature. Accordingly, the deformation of the thin plate 11 of the metal material caused by the deformation of the portion 2 on the surface of the structural member 20 and thus the unevenness 13
And the amount of deformation of the distance between the concavities and convexities 13 can be measured, and thus the amount of deformation of the portion 2 on the surface of the structural member 20 can be measured. And
Since the part 2 is mechanically and environmentally equivalent to the part 1, the measurement result of the deformation amount of the part 2 very closely approximates the deformation amount of the part 1 and can be regarded as the deformation amount of the part 1.

The processing of the plurality of minute irregularities provided on one surface of the thin plate 11 made of a metal material is performed by colliding a large number of minute hard spheres at high speed or pressing a pyramidal diamond indenter. Do it.

FIG. 5 shows a function of the first deformation calculator 6 for converting the voltage change, which is a function of the first deformation calculator 6, in the deformation monitor for the surface of the structural member according to the embodiment of the present invention shown in FIG. Is a graph showing the relationship between the two. That is, the temperature is obtained in advance by an experimental or analytical method using the temperature as a parameter, and is stored in the first deformation amount calculating device 6 as a database. The first deformation amount calculating device 6 calculates the deformation amount Δδ and the voltage change amount ΔΔ shown in FIG.
A predetermined relationship of V is selected, and the deformation of the part 1 is calculated from the voltage change ΔV input from the first deformation detecting device 4 in light of the selected relationship.

FIG. 6 illustrates the structure and function of a second deformation amount calculating device 7 of the structural member surface deformation detecting device of the present invention shown in FIG. That is, the second deformation amount calculation device 7 includes the imaging device 14, the image processing device 15, and the deformation amount calculation processing device 16. The imaging device 14 captures an image of the surface of the thin plate 11 of a metal material provided on the surface of the portion 2 of the structural member. Next, the image processing device 15 extracts images of the plurality of minute irregularities 13 from the surface of the thin plate 11 of the metal material captured by the imaging device 14. Subsequently, the deformation amount calculation processing device 16
Calculates the mutual distance between the images of the minute plural irregularities 13 extracted by the image processing device 15, and compares the calculated distance with the mutual distance between the images of the minute plural irregularities 13 in a known initial state measured in advance. Then, the change amount is calculated.

As the deformation of the portion 2 on the surface of the structural member progresses, a thin plate of a metal material having a plurality of minute irregularities 13 on the surface.
11 deforms following this, and the positions of the plurality of irregularities 13 change. Since the amount of change in the mutual distance between the images of the plurality of minute irregularities 13 calculated by the deformation amount calculation processing device 16 is very similar to the amount of deformation of the portion 2, it can be regarded as the amount of deformation of the portion 2. In addition, since the part 2 is mechanically and environmentally equivalent to the part 1, the deformation amount of the part 2 can approximate the deformation amount of the part 1 very well, and the deformation amount of the part 2 can be regarded as the deformation amount of the part 1. it can.

FIG. 7 illustrates another configuration example and function of the second deformation amount calculating device 7 in the structural member surface deformation detecting device of the present invention shown in FIG. That is, the second deformation amount calculating device 7 includes an imaging device 14 and an image processing device.
15 and a deformation calculation processor 16. Imaging device 14
Is located on the surface of the part 2 and has a plurality of minute irregularities 13 on the surface.
Then, a transfer image in which the surface of the thin plate 11 of the metal material provided with is transferred to the plastic film 19 is captured. Next, the image processing device 15 extracts the transfer images of the plurality of minute irregularities 13 from the transfer image of the plastic film 19 captured by the imaging device 14. Subsequently, the deformation amount calculation processing device 16 calculates the mutual distance of the transferred images of the fine plural unevenness 13 extracted by the image processing device 15, and calculates the minute plural unevenness in a known initial state measured in advance. The amount of change is calculated by comparing the distance between the 13 images with each other.

As the deformation of the portion 2 on the surface of the structural member progresses, a thin sheet of a metal material having a plurality of minute irregularities 13 on the surface.
11 deforms following this, and the positions of the plurality of irregularities 13 change. The amount of change in the mutual distance between the transferred images of the plurality of minute unevennesses 13 calculated by the deformation amount calculation processing device 16 is very similar to the amount of deformation of the portion 2, and can be regarded as the amount of deformation of the portion 2. Since the part 2 is mechanically and environmentally equivalent to the part 1, the deformation amount of the part 2 very closely approximates the deformation amount of the part 1 and can be regarded as the deformation amount of the part 1.

FIG. 8 illustrates the function of the deformation correction device 8 in the structural member surface deformation monitoring device of the present invention shown in FIG. The relationship between the calculation result 17 and the time of the deformation amount calculation result 18 by the second deformation amount calculation device 7 is shown.

Although the deformation amount calculation result 17 obtained by the first deformation amount calculation device 6 is obtained successively and continuously, since it is an electrical measurement, it is inevitably fluctuated by the influence of temperature fluctuations and noise of the measurement system. Is normal. On the other hand, the deformation amount calculation result 18 by the second deformation amount calculation device 7 cannot be obtained successively and continuously but is obtained only intermittently or periodically, but is a highly reliable value. Therefore, when the deformation amount calculation result 18 obtained by the second deformation amount calculation device 7 is obtained, the deformation amount correction device 8 changes the deformation amount calculation result 17 by the first deformation amount calculation device 6.
Is changed to the deformation amount calculation result 18 by the second deformation amount calculation device 7, and the first deformation amount calculation device 6 sets the changed value as an initial value and continues the calculation of the subsequent deformation amount. . Thus, the deformation can be monitored with high accuracy.

FIG. 9 shows a first deformation detecting device 4 and a second deformation detecting device of the structural member surface deformation monitoring device of the present invention shown in FIG.
The present invention relates to the deformation detecting device 5 of the above, which is constituted by integrating them, and is a thin plate 10 of an electrically insulating material having deformability and heat resistance.
And a thin sheet of metal material having deformability, heat resistance and corrosion resistance
11 and a conductive wire 12 made of a metal material having heat resistance and corrosion resistance.
A thin plate 11 of a metal material is provided on a thin plate 10 of an electrically insulating material. A plurality of minute irregularities 13 are processed on one surface of the thin plate 11 of a metal material, and the opposite surface on which the irregularities 13 are processed is installed so as to be in contact with the thin plate 10 of the electrically insulating material. And a current is supplied to the thin plate 11 made of a metal material.

Since the thin plate 10 made of an electrically insulating material is made of a material having deformability, when the portion 1 on the surface of the structural member 20 is deformed in a high temperature state, it is deformed in accordance with the deformation. Also, a sheet of metal material placed on a sheet of electrically insulating material 10
Since 11 has a deformability, it is deformed in accordance with the deformation of the thin plate 10 of the electrically insulating material, and the electric resistance changes accordingly, causing a voltage change between the terminals of the detection resistor 22.

In this manner, the deformation of the surface of the structural member 20 causes the deformation of the thin plate 10 of the electrically insulating material and the deformation of the thin plate 11 of the metal material.
As a result, a voltage change is caused, which can be detected through the conductive wire 12 made of a metal material. Moreover, since all of the thin plate 10 of the electrically insulating material, the thin plate 11 of the metal material, and the conductive wire 12 of the metal material have heat resistance and corrosion resistance, they do not generate oxidation, corrosion, etc. even when used for a long time at a high temperature. Thus, the deformation of the surface of the structural member 20 can be stably detected.

The deformation of the surface of the structural member 20 causes the deformation of the thin plate 11 of the metal material through the deformation of the thin plate 10 of the electrically insulating material. As a result, the distance between the plurality of minute irregularities 13 changes. So multiple small irregularities on the metal material thin plate 11
An image of the processed surface of 13 is imaged by an imaging device 14, an image of a plurality of minute irregularities 13 is extracted by an image processing device 15, and an image of the plurality of minute irregularities 13 is The distance can be calculated, and the amount of change can be calculated by comparing the distance with the mutual distance of the plurality of minute irregularities 13 in the known initial state measured in advance.

Alternatively, a surface on which a plurality of fine irregularities 13 have been processed is transferred from a surface on which a plurality of fine irregularities 13 have been processed on a thin plate 11 of a metal material to a plastic film, and this is imaged using an imaging device 14. The image processing device 15 extracts the transferred images of the plurality of minute irregularities 13, calculates the distance between the transferred images of the plurality of minute irregularities 13 by the deformation amount processing device 16, and measures a known distance that has been measured in advance. The amount of change can be calculated by comparing the distance between the plurality of minute irregularities 13 in the initial state.

[0034]

As described above, according to the structural member surface deformation monitoring apparatus of the present invention, the irreversible deformation that inevitably progresses on the surface of a structural member used at a high temperature can be continuously and accurately measured. Since monitoring can be performed well, it is possible to prevent accidents that have a large social impact, such as the occurrence of cracks and the leakage of contents accompanying the cracks, and to achieve stable operation of the turbine and boiler.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an apparatus for monitoring deformation of a surface of a structural member according to an embodiment of the present invention.

FIG. 2 is a diagram showing a first example of a deformation detecting device provided in the structural member surface deformation monitoring device according to the embodiment of the present invention.

FIG. 3 is a diagram showing a second example of a deformation detecting device provided in the structural member surface deformation monitoring device according to the embodiment of the present invention.

FIG. 4 is a diagram showing a third example of a deformation detecting device provided in the structural member surface deformation monitoring device according to the embodiment of the present invention.

FIG. 5 is a diagram illustrating a database stored in a deformation amount calculating device provided in the structural member surface deformation monitoring device according to the embodiment of the present invention.

FIG. 6 is a diagram showing a first example of a deformation amount calculating device provided in the structural member surface deformation monitoring device according to the embodiment of the present invention.

FIG. 7 is a diagram showing a second example of the deformation amount calculating device provided in the structural member surface deformation monitoring device according to the embodiment of the present invention.

FIG. 8 is a view for explaining the operation of the deformation correction device provided in the deformation monitoring device for the surface of the structural member according to the embodiment of the present invention.

FIG. 9 is a view for explaining still another configuration of the deformation detecting device provided in the structural member surface deformation monitoring device according to the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... site | part 2 ... site | part 3 ... temperature detection apparatus, 4 ... 1st deformation detection apparatus, 5 ... 2nd deformation detection apparatus, 6 ... 1st deformation amount calculation apparatus, 7 ... 2nd deformation amount calculation Device, 8: Deformation correction device, 9: Display device, 10: Electrically insulating material thin plate, 11: Metallic material thin plate, 12: Metallic material wire, 13: Unevenness, 14: Imaging device, 15: Image processing device, 16 ... Deformation amount processing device, 17
... Deformation amount calculation result, 18 ... Deformation amount calculation result, 19 ... Plastic film, 20 ... Structural member, 21 ... DC power supply, 22 ... Detection resistance.

Continuation of the front page (72) Inventor Daijiro Fukuda 2-4, Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture F-term (reference) 2F065 AA21 AA65 BB02 BB18 BB28 CC06 DD00 EE00 FF04 FF69 JJ03 QQ25 SS03 2F069 AA44 AA68 BB40 CC06 DD30 EE22 FF00 GG04 GG06 GG07 GG15 GG16 GG20 KK08 PP04 QQ05 5L096 BA02 CA02 FA08 FA66 9A001 KK37 LL09

Claims (8)

[Claims] A temperature detecting means installed on a surface of the structural member for continuously detecting a temperature of the surface of the structural member; a first deformation detecting means for continuously detecting deformation of the surface of the structural member; A second deformation detecting means for intermittently or periodically detecting deformation of the member surface, and a deformation amount of the structural member surface is calculated based on deformation information of the structural member surface detected by the first deformation detecting means. First deformation amount calculating means for calculating, and second deformation amount calculating means for calculating the deformation amount of the structural member surface based on the deformation information of the structural member surface detected by the second deformation detecting means, The first deformation amount calculating means calculates the first deformation amount based on the calculation result of the deformation amount of the surface of the structural member.
A deformation amount correcting means for correcting the calculation result of the deformation amount of the structural member surface by the deformation amount calculating means, and a display means for displaying the deformation amount calculation result of the structural member surface by the first deformation amount calculating means. An apparatus for monitoring deformation of a surface of a structural member, comprising: 2. The first deformation detecting means includes a thin plate of a heat-resistant electrically insulating material having a deformability provided on the surface of a structural member, and a deformable member provided on the thin plate of the electrically insulating material. A thin plate of a heat-resistant and corrosion-resistant metal material, a conductive wire of a heat-resistant and corrosion-resistant metal material connected to the thin plate of the metal material, and a DC power supply and a detection resistor connected to the conductive wire of the metal material; Is deformed in accordance with the deformation of the surface of the structural member together with the thin plate of the electrically insulating material, an electric current is passed through the thin plate of the metallic material through the conductive wire of the metallic material, and the thin plate of the metallic material is 2. The structural member surface deformation monitoring device according to claim 1, wherein the device detects a change in electric resistance caused by the deformation following the deformation of the structure. 3. The first deformation detecting means includes a thin plate of a heat-resistant electrically insulating material having a deformability provided on the surface of the structural member, and a deformable member provided on the thin plate of the electric insulating material. A plurality of thin plates of a heat-resistant and corrosion-resistant metal material, and a conductive wire of a heat-resistant and corrosion-resistant metal material for connecting the plurality of thin plates of the metal material in series, wherein the thin plate of the metal material and the thin plate of the electrically insulating material are the structural members. Deformation follows the deformation of the surface, passing a current through the metal material thin plate via the metal material wires connected to both ends of the plurality of electrically connected metal material thin plates, 2. The structural member surface deformation monitoring apparatus according to claim 1, wherein a change in electrical resistance caused by deformation of the thin metal material following deformation of the surface of the structural member is detected. 4. The first deformation amount calculating means is configured to determine a relationship between a voltage change and a deformation amount of a thin plate of a heat-resistant and corrosion-resistant metal material having a deformability, which is previously determined by an experiment or an analytical method as a parameter. The deformation of the surface of a structural member according to claim 2 or 3, wherein the amount of deformation of the surface of the structure is calculated from a signal from the first deformation detecting means and a signal from the temperature detecting means. Monitoring device. 5. The second deformation detecting means has a plurality of minute irregularities on one surface and a metal having deformability, heat resistance, and corrosion resistance, which is installed by joining the other surface to the surface of the structural member. 2. The apparatus for monitoring deformation of a surface of a structural member according to claim 1, wherein the apparatus comprises a thin plate of a material. 6. The second deformation amount calculating means captures an image of a surface of a thin plate of a heat-resistant and corrosion-resistant metal material provided on a surface of a structural member to which a plurality of minute irregularities are provided, and outputs image information. Means, image processing means for applying image processing to the video information to extract a plurality of minute uneven images, and deformation amount calculating means for calculating the distance between the uneven images from the uneven images. The structural member surface deformation monitoring device according to claim 5, characterized in that: 7. The imaging means is for imaging a fine unevenness image formed on a plastic film attached to a surface of a thin heat-resistant and corrosion-resistant metal material sheet provided with fine unevenness provided on the surface of a structural member. 7. The apparatus for monitoring deformation of a surface of a structural member according to claim 6, wherein: 8. A thin plate of a heat-resistant electrical insulating material having deformability provided on the surface of a structural member, and a plurality of minute irregularities provided on one surface, the deformability provided on the thin plate of electrical insulating material. Having a thin plate of a heat-resistant and corrosion-resistant metal material, a conductive wire of a heat-resistant and corrosion-resistant metal material connected to the thin plate of the metal material, a DC power supply and a detection resistor connected to the conductive wire of the metal material, and a thin plate of the metal material. Imaging means for capturing a transfer image to a surface provided with fine irregularities or a plastic film attached to this surface and outputting video information,
Image processing means for performing image processing on the video information to extract a plurality of minute uneven images; and deformation amount calculating means for calculating a distance between the uneven images from the uneven images. Monitoring system for structural member surface deformation.