TWI652429B - Construction monitoring device for sealing material, construction monitoring program, construction monitoring method, construction monitoring system and construction internship system - Google Patents

Abstract

It is easy to confirm the construction state of the sealing material and improve the reliability and construction ability of the construction. A construction monitoring device for a sealing material is sealed by a plurality of bolts locked to a flange joint with a sealing material (gasket), and includes: a graphic information generating mechanism (information generating unit) that generates a radiation extending from a center point a plurality of coordinates, wherein the target axial force of the bolt or the detected axial force of the bolt is expressed on each coordinate at a distance from the center point, and the adjacent target axial force on the adjacent coordinate is connected or A first distribution pattern generated by the target axial force or a second distribution pattern generated based on the detected axial force is generated between the detected axial forces.

Description

Construction monitoring device for sealing material, construction monitoring program, construction monitoring method, construction monitoring system and construction internship system

The present invention relates to a technique for monitoring construction and construction of a sealing material such as a gasket used for a flange joint to which a pipe is connected.

In the construction of a pipe connection or a device such as a pipe connection pump, a sealing material such as a gasket is interposed in the flange joint, and the gasket is locked by a bolt disposed at a plurality of flange joints.

Regarding the construction, it is known to measure the consolidation force or the consolidation state of the flange-consolidated portion sandwiching the gasket to monitor fluid leakage from the consolidation portion (for example, Patent Document 1). Regarding the pressure sandwiched on the gasket side of the flange consolidation portion, it is known that the pressure is measured by a pressure sensor, and the flange consolidation force is determined by the measurement value (for example, Patent Document 2).

As an educational device for the construction, it is known that a locking force for detecting a bolt that is locked by a locker such as a torque wrench is detected by a load meter, and is displayed on the display so that the operator can confirm the flange. Surface pressure (for example, Patent Document 3).

In addition, a flange locking internship system in which the strain data of the bolt can be visually confirmed by the practice of screwing the flange joint is known (for example, Patent Document 4). [Advanced Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. Announcement [Summary of the Invention] [Problems to be Solved by the Invention]

However, various products having different characteristics for the sealing material have a degree of freedom of choice. Even if an excellent sealing material suitable for the conditions is selected and the construction state is not complete, the function of the sealing material cannot be exhibited. Therefore, there is a problem that leakage of the sealing function is reduced. If the axial force of the bolt of the locking sealing material is increased, the locking force will increase. However, when the locking force exceeds the limit of the allowable force of the sealing material, there is a risk of crushing the sealing material, if the locking force is insufficient. The necessary sealing performance cannot be obtained. When the axial forces of the plurality of bolts are not uniform, there is a problem that the sealing material is strained and the desired sealing performance cannot be obtained. Therefore, under the safety and reliability of the joint of the detachable piping, the construction of the sealing material is extremely important, and careful construction is required.

The construction of such a sealing material is desired by a skilled operator, and training and experience are required for skill. However, even skilled people, it is important to confirm skills and improve skills to ensure the reliability of construction.

Therefore, an object of the present invention is to facilitate the confirmation of the construction state of the sealing material in view of the above problems, and to improve the reliability and construction ability of the construction.

Further, another object of the present invention is to understand, according to the inventors, that not only the axial force of the locking sealing material is uniformized, but also the parallelism between the flanges, the locking force of each sealing material, and the locking order of the bolts. It also affects the sealing performance, and monitors the parallelism between the flanges, the locking force of each sealing material, and the locking sequence to help improve the construction skills and improve the reliability of the sealing construction. [Means to solve the problem]

In order to achieve the above object, in accordance with an embodiment of the construction monitoring device for a sealing material according to the present invention, a construction monitoring device for sealing material sealed by a plurality of bolts sealed by a plurality of bolts is provided with graphic information. a generating means, wherein the graphic information generating means generates a plurality of coordinates extending radially from the center point, and the target axial force of the bolt or the detecting axial force of the bolt is expressed on each coordinate at a distance from the center point. Connecting between the target axial forces on the adjacent coordinates or between the detected axial forces, generating a first distribution pattern generated according to the target axial force on the coordinates, or generating the axial force according to the detected axial force The second distribution pattern. In the construction monitoring device for the sealing material, the graphic information generating means superimposes the first distribution pattern and the second distribution pattern on a common coordinate. In order to achieve the above object, in accordance with an embodiment of a construction monitoring device for a sealing material according to the present invention, a construction monitoring device for a sealing material that is sealed by a plurality of bolts locked to a flange joint with a plurality of bolts, includes: plural The first sensor detects the axial force of each bolt; the information generating unit generates the distribution information of the target axial force by the target axial force and the position information of the axial force, and uses the axial force and position information And generating a distribution information of the axial force; and displaying a first distribution pattern indicating the target axial force on the coordinate, and presenting the second distribution pattern indicating the axial force on the coordinate.

Further, the construction monitoring device for the sealing material further includes a second sensor that detects the parallelism between the flanges of the flange joint, and the information generating unit is outputted by the sensor of the second sensor. The parallelism information is generated, and the display indicates a third distribution pattern indicating the degree of parallelism between the flanges.

In the construction monitoring device for the sealing material, the information generating unit sets a target locking force for each sealing material, and refers to a locking torque calculated by the flange of the flange joint and the size information of the bolt. Whether or not the locking force to the aforementioned sealing material reaches the aforementioned target locking force is determined for each of the bolts, and the determination result is prompted on the aforementioned display.

In the construction monitoring device for the sealing material, the working environment can be simulated by changing the position or angle of the sealing construction portion including the flange joint or by changing the position or angle of the flange joint.

In order to achieve the above object, an embodiment of a construction monitoring program for a sealing material according to the present invention is a construction monitoring program for a sealing material executed by a computer for realizing the following functions by using the aforementioned computer: generating a radiation extending from a center point a plurality of coordinates, wherein the target axial force of the bolt or the detected axial force of the bolt is expressed on each coordinate at a distance from the center point, and the adjacent target axial force on the adjacent coordinate is connected or A first distribution pattern generated by the target axial force or a second distribution pattern generated based on the detected axial force is generated between the detected axial forces. In the construction monitoring program of the sealing material, the function of superimposing the first distribution pattern and the second distribution pattern on a common coordinate is realized by the computer. In order to achieve the above object, an embodiment of a construction monitoring program for a sealing material according to the present invention is a construction monitoring program for a sealing material executed by a computer for realizing the following functions by using the aforementioned computer: detecting the axial force of each bolt The plurality of first sensors receive the sensor output; generating the distribution information of the target axial force by using the target axial force and the position information of the axial force, and generating the axis by using the axial force and the position information The distribution information of the force; and the first distribution pattern indicating the axial force of the target is presented on the coordinate, and the second distribution pattern indicating the axial force is presented on the coordinate.

In the construction monitoring program of the sealing material, the computer is further used to: receive a sensor output from a second sensor that detects the parallelism between the flanges of the flange joint; and the sensor is provided by the foregoing sensor Outputting generates parallelism information; and prompting a third distribution pattern for indicating the aforementioned parallelism between the flanges.

In the construction monitoring program of the sealing material, the computer is further used to realize the following functions: setting a target locking force for each sealing material, and determining whether the locking force of the sealing material reaches the target locking for each bolt Force; and use the display to indicate the result of the determination.

In the construction monitoring program of the sealing material, the computer is further used to realize the following function: determining the locking order of each bolt, and presenting the determination result to the display.

In order to achieve the above object, an embodiment of a construction monitoring method for a sealing material according to the present invention is a construction monitoring method for a sealing material sealed by sealing a plurality of bolts to a flange joint with a plurality of bolts, including the lower Steps: The graphic information generating means generates a plurality of coordinates extending from the center point into a radial shape, and the target axial force of the bolt or the detected axial force of the bolt is expressed on each coordinate at a distance from the center point, and is connected Between the target axial forces on the adjacent coordinates or between the detected axial forces, a first distribution pattern generated according to the target axial force is generated on the coordinates, or the first axial pattern is generated according to the detection axial force 2 distribution graphics. In order to achieve the above object, an embodiment of a construction monitoring method for a sealing material according to the present invention is a construction monitoring method for a sealing material sealed by sealing a plurality of bolts to a flange joint with a plurality of bolts, including the lower The steps of: detecting the axial force of each bolt; generating the distribution information of the target axial force by using the target axial force and position information of the axial force, and generating the distribution information of the axial force by using the axial force and the position information; And presenting the first distribution pattern indicating the target axial force on the coordinates, and presenting the second distribution pattern indicating the axial force on the coordinates.

In the above construction method of the sealing material, the method further comprises the steps of: detecting the parallelism between the flanges of the flange joint; generating parallelism information by the parallelism; and prompting to indicate between the flanges The third distribution pattern of the aforementioned parallelism.

In order to achieve the above object, an embodiment of a construction monitoring system for a sealing material according to the present invention is a construction monitoring system for a sealing material sealed by sealing a plurality of bolts to a flange joint with a plurality of bolts, comprising: The sealing construction portion includes a first sensor for detecting an axial force of a plurality of bolts that are locked to the flange joint with a sealing material interposed therebetween, or a parallelity between the flanges of the flange joint for detecting the flange joint a second sensor; and a graphic information generating means for generating a plurality of coordinates extending from the center point into a radial shape, wherein the target axial force of the bolt or the detected axial force of the bolt is expressed by a distance from the center point Each coordinate is connected between the target axial force on the adjacent coordinate or between the detection axial force, and generates a first distribution pattern generated according to the target axial force on the coordinate or according to the detection axis The second distribution pattern produced by the force. In order to achieve the above object, an embodiment of a construction monitoring system for a sealing material according to the present invention is a construction monitoring system for a sealing material sealed by sealing a plurality of bolts to a flange joint with a plurality of bolts, comprising: The sealing construction portion includes a first sensor for detecting an axial force of a plurality of bolts that are locked to the flange joint with a sealing material interposed therebetween, or a parallelity between the flanges of the flange joint for detecting the flange joint a second sensor; and an information generating unit connected to the first sensor or the second sensor by wire or wireless, and generating the target axial force by using the target axial force and position information of the axial force The distribution information, the distribution information of the axial force is generated by the axial force and the position information, or the parallelism information is generated by the parallelism; and the display is connected to the information generating unit by wire or wirelessly, and the prompt is used for A first distribution pattern indicating the target axial force, a second distribution pattern indicating the axial force, or a third distribution pattern indicating the parallelism is displayed on the coordinates.

In order to achieve the above object, an embodiment of a construction internating system for a sealing material according to the present invention is a construction internating system for sealing materials which is sealed by a plurality of bolts and sealed by a plurality of bolts, and includes: The sealing construction portion includes a first sensor for detecting an axial force of a plurality of bolts that are locked to the flange joint with a sealing material interposed therebetween, or a parallelity between the flanges of the flange joint for detecting the flange joint a second sensor; and a graphic information generating means for generating a plurality of coordinates extending from the center point into a radial shape, wherein the target axial force of the bolt or the detected axial force of the bolt is expressed by a distance from the center point Each coordinate is connected between the target axial force on the adjacent coordinate or between the detection axial force, and generates a first distribution pattern generated according to the target axial force on the coordinate or according to the detection axis The second distribution pattern produced by the force. In order to achieve the above object, an embodiment of a construction internating system for a sealing material according to the present invention is a construction internating system for sealing materials which is sealed by a plurality of bolts and sealed by a plurality of bolts, and includes: The sealing construction portion includes a first sensor for detecting an axial force of a plurality of bolts that are locked to the flange joint with a sealing material interposed therebetween, or a parallelity between the flanges of the flange joint for detecting the flange joint a second sensor; the information generating unit is connected to the first sensor or the second sensor by wire or wirelessly, and generates the target axial force by using the target axial force and position information of the axial force. Distributing information, generating the distribution information of the axial force by using the axial force and position information, or generating parallelism information by using the parallelism; and displaying the display by wire or wirelessly connecting with the information generating unit, and prompting to indicate The first distribution pattern of the target axial force indicates a second distribution pattern indicating the axial force or a third distribution pattern indicating the parallelism on a coordinate. [Effects of the Invention]

According to the present invention, the effects of any of the following can be obtained.

(1) The distribution pattern indicating the locked state of the seal can be promptly presented to the coordinates, and the locked state of the sealing material can be visually easily recognized by the shape state of the distribution pattern or the distance from the center.

(2) At the time of increasing or decreasing the axial force, it is easy to recognize the slack generated by the elastic interaction unique to the flange lock by the shape change of the axial force distribution pattern, and according to such recognition, the target locking force can be performed according to the recognition. The bolts are locked and the proper sealing is achieved with an optimum locking force.

(3) Since the relationship between the torque applied to the bolt and the axial force distribution can be easily grasped, the skilled worker can seek customary correction or skill improvement, and can improve the reliability of the seal construction.

(4) It can be used as an internship support tool for sealing materials, and contributes to the rapid improvement of skills.

(5) If the parallelism between the flanges of the flange joint is monitored in time, not only the proper locking force, but also the order of the locking or the locking force affecting the parallelism of the flange can be easily confirmed.

<Construction monitoring device>

Fig. 1 is a view showing a construction monitoring device for a sealing material in an embodiment. The configuration shown in Fig. 1 is an example, and the present invention is not limited to such a configuration.

The construction monitoring device (hereinafter simply referred to as "construction monitoring device") 2 of the sealing material is provided in the sealing construction portion 4. The seal construction unit 4 is a monitoring target of the construction monitoring device 2 and is an example of a sealed construction machine. The seal construction portion 4 includes a flange joint 6, and is sealed by sandwiching the gasket 8 in the flange joint 6, and the gasket 8 is an example of a seal member.

The flange joint 6 is a coupling mechanism of the pipes 10-1 and 10-2, and includes a pair of flanges 6-1 and 6-2. The flange 6-1 is integrally formed at the end of the pipe 10-1, and the flange 6-2 is integrally formed at the end of the pipe 10-2.

The spacer 8 is disposed between the opposing faces of the flanges 6-1 and 6-2. The spacer 8 has a ring shape and is smaller in diameter than the flanges 6-1 and 6-2 and has a larger diameter than the inner diameter of the pipes 10-1 and 10-2. When the pipes 10-1 and 10-2 are connected, the flange joints 6 are generally not required. However, the flange joints 6 are used to periodically attach and detach the pipes 10-1 and 10-2, for example, for maintenance. By the sealing of the connected piping 10-1, 10-2, the same function as the seamless piping is achieved.

Each of the flanges 6-1, 6-2 is provided with a plurality of bolts 12-1, 12-2, ..., 12-8. Each of the bolts 12-1, 12-2, ..., 12-8 is disposed at an angular interval of a predetermined angle θ around the center O of the pipes 10-1 and 10-2 at equal intervals. The angle θ is an example of the positional information of the axial force. Each of the bolts 12-1, 12-2, ..., 12-8 penetrates the flanges 6-1, 6-2 at equal positions and mounts the nut 14 with the flanges 6-1, 6-2 interposed therebetween. . Since the nut 14 is locked by the arrangement of the bolts 12-1, 12-2, ..., 12-8, the spacer 8 can be given an equal locking force.

In order to impart a torque T to each nut 14, an appropriate locking tool 16 is required. As the locking tool 16, there are, for example, a ratcheting torsion wrench, a digital torque wrench, a bolt tensioner, a ratchet wrench, a spanner, a plum wrench, a striker, and the like. When the locking tool 16 is abutted against the nut 14 and the torque T is applied, the axial force F is generated for each of the bolts 12-1, 12-2, ..., 12-8 in the Z-axis direction in the drawing, and the axial force is generated. F becomes the locking force to the gasket 8.

A sensor group (first sensor group) 18 that detects each axial force F is provided. The sensor group 18 corresponds to each of the bolts 12-1, 12-2, ..., 12-8 and includes a plurality of sensors 18-1, 18-2, ..., 18-8. each The sensors 18-1, 18-2, ..., 18-8 can use a sensor that outputs an axial force F with an electrical signal, and can also use a pressure sensor, a strain gauge, a displacement gauge, and a load cell. Either one of them may be a sensor that directly detects the locking force of the spacer 8.

The sensor outputs of the sensor group 18 are placed in the data storage unit 20 to be accumulated. Each of the detection axial forces is, for example, an electrical signal, and is electrically stored in the data storage unit 20. The data storage unit 20 may be constituted by a computer, and may be an existing data recorder.

Each of the detection axial forces is placed in the information generating unit 22 from the data storage unit 20 at a predetermined timing. This information generating unit 22 is an example of a graphic information generating unit. The information generating unit 22 uses, for example, a computer. The information generating unit 22 digitizes each of the detection axis forces and performs information processing for the locking force. The function of the information generating unit 22 that executes the information processing includes a function of generating a plurality of coordinate axes y radially extending from the center point O, and indicating the target axial force of the bolt from the center point O on each coordinate axis y. Fref or the function of detecting the axial force F of the bolt, connecting the target axial force Fref on the adjacent coordinate axis y or detecting the axial force F, and generating a first distribution pattern generated by the target axial force on the coordinate axis y 26-1, or the function of the second distribution pattern 26-2 generated by detecting the axial force. This function is obtained by information processing.

The information processing includes the following processes: a) placing and memorizing the axial force of each detection; b) generating position information of each detected axial force, and drawing information indicating the axial force distribution of the detection; c) generating coordinates for unfolding the axial force distribution; and d) generating information representing the target axial force distribution using the target axial force and position information. The target axial force is the axial force required for the proper locking force of the gasket 8.

The coordinates and mapping information obtained by the processing of the information are supplied to the display 24 such that the axial force pattern and the coordinates are presented together on the screen of the display 24. The display 24 is an example of an information presentation unit that presents a sealed state to an operator or a manager. The display 24 may be connected to the information generating unit 22 by wire or wirelessly, and a display of a personal computer (PC) may be used.

<Axis force monitoring>

Next, Fig. 2 is a processing sequence showing the monitoring of the detection axial force. This processing sequence is an example of the construction monitoring program and the construction monitoring method of the present invention.

This processing procedure is a process in which the spacer 8 suitable for the construction conditions is selected in advance, and the bolts 12-1, 12-2, ..., 12-8 are temporarily fixed.

It is judged whether the bolts 12-1, 12-2, ..., 12-8 are locked (S101), and if it is locked (YES of S101), the sensor outputs are put into the data accumulation from the sensor group 18. The portion 20 accumulates the detected axial force (S102). This accumulation is equivalent to the insertion and memory of each of the detection axial forces corresponding to the information processing described above.

A drawing process for detecting the axial force and the target axial force is performed (S103). The processing includes position information for generating each of the detected axial forces, and mapping information indicating the detection of the axial force distribution, c) generating coordinates for deploying the axial force distribution, and d) using the target axial force and position. Information, generating mapping information representing the distribution of the target axial force.

After the drawing processing, a distribution pattern of the detected axial force and the target axial force is displayed on the coordinate on the display 24 (S104).

In this display, the change in the axial force is monitored and detected, and it is judged whether or not the locking of the bolts 12-1, 12-2, ..., 12-8 is completed (S105). If the bolts 12-1, 12-2, ..., 12-8 are locked before completion (NO in S105), the processing of S102 to S105 is continued. Thereby, the change in the detected axial force is reflected to the distribution pattern displayed on the display 24, and the dynamic display detects the axial force as a change in the distribution pattern.

When the bolts 12-1, 12-2, ..., 12-8 are locked (YES of S105), the distribution of the target axial force and the detected axial force is displayed on the coordinates at the completion of the locking (S106), and the completion is completed. Construction monitoring and treatment. Thereby, it can be easily confirmed whether the axial force coincides with the target axial force.

Fig. 3 is a view showing an example of distribution patterns of the detected axial force and the target axial force in the monitoring of the axial force.

As shown in FIG. 3A, a coordinate in which a plurality of coordinate axes y1, y2, ..., y8 are radially provided with the O point as a center is set. [1], [2], ..., [8] are bolt numbers, and the coordinate axes y1, y2, ..., y8 correspond to the arrangement of a plurality of bolts 12-1, 12-2, ..., 12-8.

In this example, the number of coordinate axes corresponding to the number of bolts 8 is sufficient. However, the number of coordinate axes y may be set in accordance with the number of bolts arranged. Each of the coordinate axes y1, y2, ..., y8 includes a scale indicating a positive axial force level in a direction away from the O point, and sets the x-axis on the same scale.

F1ref, F2ref, ..., F8ref are the target axial forces indicating the respective bolts 12-1, 12-2, ..., 12-8 with respect to the appropriate locking force for the spacer 8. Usually, F1ref, F2ref, ..., F8ref are set to the same value Fref. For example, when the respective target axial forces F1ref, F2ref, ..., F8ref are connected by a two-dot chain line, the distribution pattern 26-1 of the target axial force Fref is generated as the first distribution pattern. In this case, the distribution pattern 26-1 is an octagonal distribution pattern by F1ref, F2ref, ..., F8ref. In this case, since θ = 45 [°], the distribution pattern 26-1 is a regular octagon, and when the number of bolts is different, the distribution pattern 26-1 becomes a polygonal shape in response thereto.

When the detected axial forces of the bolts 12-1, 12-2, ..., 12-8 are F1, F2, ..., F8, the axial forces F1, F2, ..., F8 at the time of detection are at y1, y2, ... , y8 is drawn at the scale position, in this case, as the distribution pattern 26-2.

The relationship between the detected axial forces F1, F2, ..., F8 and the target axial forces F1ref, F2ref, ..., F8ref at the time of detection is: F1ref>F1, F1ref-F1=ΔF1 (1) F2ref>F2, F2ref-F2 =ΔF2 (2) F3ref>F3, F3ref-F3=ΔF3 (3) ...... F8ref>F8, F8ref-F8=ΔF8 (4)

While confirming the distribution pattern 26-2, the axial force F is increased by only the ΔF1, ΔF2, ..., ΔF8 by the locking tool 16, and the detection axial forces F1, F2, ..., F8 reach the target axial forces F1ref, F2ref, ..., F8ref can be.

However, for example, as shown in FIG. 3B, the axial force F1 is increased in the direction of the arrow a to reach the target axial force F1ref.

At this time, on the side of the bolt 12-1, it is: F1ref = F1, F1 - F1ref = 0 (5) On the side of the bolt 12-2, the elastic portions of the flanges 6-1, 6-2 are mutually The influence of the action, the axial force F2 is reduced to F2', and is: F2'<F2, F2-F2'=ΔF2'>0 (6) Similarly, the bolt 12-8 side is also subjected to the flange 6-1, The influence of the elastic interaction of 6-2, the axial force F8 is reduced to F8', and becomes: F8'<F8, F8-F8'=ΔF8'>0 ・・・(7)

Therefore, on the side of the bolts 12-2 and 12-8, the equations (1) and (4) become: F2ref-F2'=ΔF2+ΔF2'>ΔF2 (8) F8ref-F8'=ΔF8+ΔF8'> ΔF8 (9) In other words, when the axial force F1 on the side of the bolt 12-1 reaches the target axial force F1ref, it is necessary to make the target axial forces F2ref and F8ref on the side of the bolts 12-2 and 12-8. The axial force increases.

That is, the reduction of the axial forces F2, F8 on the side of the bolts 12-2, 12-8 adjacent to the bolt 12-1 is a flange 6-1, 6 which is locked on the side of the bolt 12-1. The elastic interaction between the two flanges 6-1 and 6-2 causes expansion on the bolts 12-2 and 12-8 side, and slack on the bolts 12-2 and 12-8.

It is extremely beneficial to easily recognize the effects of such elastic interactions from changes in the distribution pattern 26-2. That is, by visualizing the reduction of the axial force caused by the elastic interaction, the influence due to the elastic interaction can be visually recognized, and the torque T generated by the locking tool 16 can be utilized to sense the axial force. The sense of increase and decrease, and allows the operator to learn the skills of flange locking.

<Effect of an embodiment>

According to this embodiment, the following effects can be obtained.

(1) Since the distribution patterns 26-1 and 26-2 of the target axial force Fref and the detection axial force F are plotted on the coordinates and displayed on the screen, the distribution patterns 26-1 and 26-2 can be used. In contrast, the axial force F is added and subtracted by grasping the direction of increase and decrease of the relative axial force difference, and the target axial force Fref can be achieved to achieve an appropriate sealing state.

(2) The magnitude of the detected axial force F is the magnitude of the detected axial force F drawn onto the scale, that is, the distance from the O point can be easily grasped by comparison with the distribution pattern 26-1, and the distribution pattern 26-2 is The shape strain and the like, and the relationship between the increase and decrease of the locking state can be easily visually recognized from the detection axial force F.

(3) Since the distance of the detection axial force F is expressed by the distance in the direction away from the point O, the direction of increase and decrease of the locking axial force can be recognized based on the point O, and the detection axial force F can be easily grasped and locked. The direction of operation of the tool 16, that is, the direction of increase and decrease of the torque T.

(4) There is a certain locking order for the bolts 12-1, 12-2, ..., 12-8, but in the case where the locking sequence is not implemented, the shape of the distribution pattern 26-2 from the axial force F can be detected. Or determine its strain state.

(5) For the seal construction learners, they can quickly familiarize themselves with the sealing construction, and even the skilled person can also use the familiarity and construction correction.

(6) The locking tool 16 includes, for example, a ratcheting torsion wrench, a digital torsion wrench, a bolt tensioner, a ratchet wrench, a spanner, a plum wrench, a striker, and the like. Using the distribution pattern of the detected axial force to compare the locking results of the tools, the selected information can be obtained for the high quality sealing construction when the appropriate tool is selected.

(7) It is possible to compare the target axial force Fref and the detection axial force F distribution patterns 26-1 and 26-2 on the common coordinates by using the operation of detecting the axial force F to reach the target axial force Fref. The ideal sealing state.

(8) The change of the distribution pattern 26-2 can be recognized in response to the detection of the axial force F, and the influence of the elastic interaction held by the flange joint 6 can be easily recognized, and the locking force imparted by the interaction of the elastic force can be performed. . [Example 1]

Fig. 4 is a view showing the construction monitoring device of the sealing material in the first embodiment. The same portions as those in Fig. 1 are given the same symbols.

In the construction monitoring device 2 of the first embodiment, in addition to the plurality of first sensors 18-1, 18-2, ..., 18-8, there are four sets of second sensors 28-1, 28-2. 28-3, 28-4 are a plurality of second sensor groups 28. The sensors 28-1, 28-2, 28-3, 28-4 can use a gap between the detection flanges 6-1, 6-2, such as a displacement gauge.

In this example, the sensors 28-1, 28-2, 28-3, 28-4 are at an angular interval of 90 [degrees], for example, the sensor 28-1 is disposed on the side of the bolt 12-1, in the bolt The 12-3 side configures the sensor 28-2, the sensor 28-3 is disposed on the side of the bolt 12-5, and the sensor 28-4 is disposed on the side of the bolt 12-7, at the flange 6-1, 6-2 The gap is detected around the 4 locations. The parallelism is obtained from the gaps. The detection position of the parallelism may also be set more than four.

The sensor outputs of the sensors 28-1, 28-2, 28-3, and 28-4 are placed in the data storage unit 20 and supplied to the information generating unit 22. The information generating unit 22 generates parallelism information from the sensor output, and performs information processing for generating graph information of parallelism.

The information processing includes the following processes: e) placing and memory of each sensor output, f) position information of each gap, and generating parallelism information from each sensor output to generate parallelism mapping information. , g) Generate coordinates indicating parallelism.

The display 24 generates a third distribution pattern 26-3 (FIG. 6) indicating the parallelism of the flanges 6-1 and 6-2 by the drawing information supplied from the information generating unit 22.

<Monitoring of Parallelism>

Figure 5 is a process sequence showing the monitoring of parallelism. This processing sequence is an example of the construction monitoring program and the construction monitoring method of the present invention.

Even in this processing sequence, the locking of the bolts 12-1, 12-2, ..., 12-8 is judged (S201), and if it is locked (YES of S201), the sensors are received from the sensor group 28 The output is placed in the data storage unit 20, and the sensor output is accumulated (S202). A drawing process of the parallelism between the flanges 6-1 and 6-2 is performed from the detected gap (S203).

After the drawing processing, the distribution pattern 26-3 indicating the parallelism on the coordinates is indicated on the display 24 (S204).

In this display, the change in the axial force is monitored and detected, and it is judged whether or not the bolts 12-1, 12-2, ..., 12-8 are locked (S205). If the locking of the bolts 12-1, 12-2, ..., 12-8 is completed (NO in S205), the processing of S202 to S205 is continued. Thereby, the change in the parallelism is reflected to the distribution pattern 26-3 displayed on the display 24, and the change in the parallelism is dynamically displayed.

When the locking of the bolts 12-1, 12-2, ..., 12-8 is completed (YES of S205), the distribution pattern of the parallelism at the completion of the locking is expressed on the coordinates (S206), and the construction monitoring processing is completed. .

Fig. 6 is a view showing a distribution pattern showing the state of parallelism of the flanges 6-1, 6-2 generated by the flange joint 6.

In the display of the distribution pattern of the parallelism, as shown in A of FIG. 6, the coordinate axes y11, y12, y13, y14 corresponding to the positions of the sensors 28-1, 28-2, 28-3, and 28-4 are set. . [1], [2], [3], [4] are the sensor numbers and show the detection position of the gap. A scale for drawing a gap is attached to each coordinate axis y11, y12, y13, y14. Connect the same scale to display the coordinate axis x.

As shown in A of FIG. 6, the detected gaps D1, D2, D3, and D4 are plotted on the coordinate axes y11, y12, y13, and y14. Since D1 ≒ D2 ≒ D3 ≒ D4, the distribution pattern 26-3 roughly shows a square. That is, in the state shown in A of Fig. 6, the allowable parallelism is obtained.

On the other hand, in the state shown in B of FIG. 6, D1 < D2 ≒ D3 ≒ D4, and the distribution pattern 26-3 becomes a deformation pattern. That is, in the state shown in B of Fig. 6, the parallelism cannot be obtained.

<Effect of Embodiment 1>

According to this embodiment 1, the following effects can be obtained.

(1) From the monitoring of the axial force, even if the axial force is in the proper range of the target axial force and the parallelism between the flanges is lacking, and the single-sided locking occurs, there is a possibility that the gasket surface pressure is biased. This defect can be avoided by parallelism monitoring.

(2) From the monitoring of the axial force, even if the axial force is within the appropriate range of the target axial force, parallelism monitoring can be used to make it easy for the operator to recognize that the lack of parallelism between the flanges results in a single locking. It will be appreciated that the respective degrees of locking between the flanges of the axial force may be varied by the order of locking between the flanges, even if appropriate.

(3) Through the axial force monitoring and parallelism monitoring, the skill of sealing construction can be improved. [Embodiment 2]

Fig. 7 is a view showing the construction monitoring system in the second embodiment. The construction monitoring system 30 is constructed by using the construction monitoring device of the sealing material described above as an internship system. In FIG. 7, the same portions as those in FIG. 1 are denoted by the same reference numerals, and the descriptions of the sensors 28-1, 28-2, and 28-3 are omitted.

The construction monitoring system 30 is provided with first and second stands 32 and 34. The gantry 32 is a fixed gantry that is rigidly fixed to the floor 36. The gantry 34 is a movable table that is moveable by the casters 38 and is movable relative to the gantry 32 to the desired position on the floor 36.

The sealing structure 4 is mounted on the gantry 32, and the cable 40 of each of the sensors 18-1, 18-2, ..., 18-8 (FIG. 1) passes through the gantry 32 and is detached from the pedestal 42 side. The side portion is pulled out and guided to the side of the gantry 34. In this example, the piping 10-2 described above is provided on the gantry 32 side.

The gantry 34 is provided with a data logger 46 and a personal computer (PC) 48 on the side of the shelf 44, and a display 24 is provided on the top plate 50. The data logger 46 is an example of the data storage unit 20 described above, and the PC 48 is an example of the information generation unit 22 described above. The data recorder 46 is connected to the cable 40 on the side of the sensor group 18 so that the sensor outputs of the respective sensors 18-1, 18-2, ..., 18-8 are placed. The data logger 46 and the PC 48 are connected by a cable 52, and data can be transferred between the two.

When the practitioner 54 operating the locking tool 16 moves the gantry 34 relative to the gantry 32 and makes the screen 56 of the display 24 visually identifiable, it can be easily confirmed from the image by applying to each of the bolts 12-1, 12 The distribution pattern 26-2 of the detected axial force F, which varies by the torque T of -2, ..., 12-8, etc., can be constructed together with this confirmation.

<Sensor 18-1, 18-2, ..., 18-8>

Fig. 8 is a view showing a bolt provided with a strain gauge. A strain gauge 60 is provided inside the bolt body 58. The strain gauge 60 is a sensor 18-1, An example of 18-2, ..., 18-8 detects the strain of the bolt body 58 generated by the torque T applied to the bolts 12-1, 12-2, ..., 12-8, which represents the axial force F. The strain gauge 60 is connected to the cable 40, and the detection axial force F is taken out as the sensor output through the cable 40.

<PC48>

FIG. 9 shows an example of the configuration of the construction monitoring system 30. The PC 48 includes a processor 62, a storage unit 64, an output/output unit (I/O) 66, a communication unit 68, and an operation input unit 70.

The processor 62 executes information processing such as various computer programs such as an OS (Operating System) and a construction monitoring program in the storage unit 64. This information processing includes the calculation of the locking force, the recording of the construction history, the control of the display 24, the monitoring of the construction, the construction management, etc., in addition to the processing including the above-described processes a) to e). Various treatments.

The memory unit 64 includes, for example, a ROM (Read-Only Memory) and a RAM (Random-Access Memory) as a memory device, and stores an OS and a monitor program in the ROM. The memory unit 64 constructs a database (DB) 72 for storing detection information, drawing information, and the like, and the DB 72 stores the detection information placed from the data recorder 46. The detection information includes the sensor outputs of the sensor groups 18, 28.

The I/O 66 is for the delivery of image data to and from the display 24. The communication unit 68 is connected to the data logger 46 via a cable 52.

The operation input unit 70 is constituted by, for example, an input device such as a keyboard or a mouse, and is used for screen operation and information input.

<locking order>

Figure 10 is a view showing the locking sequence of the spacer 8. Before the lock is applied, the construction conditions are input (S301). This construction condition is the premise information of the selection of the gasket 8 and the magnitude of the locking force.

The selection of the spacer 8 in accordance with the construction conditions is performed (S302). The spacer 8 is selected to be a spacer 8 selected to meet the target of sealing between the flanges 6-1, 6-2. When the spacer is selected to generate an error, even if the locking sequence or calibration is appropriate, an appropriate one cannot be obtained. Sealed state.

Select whether or not to lock the management (S303). The locking management is to manage the locking tool 16, the locking force given, and the order of locking. Specifically, it must at least: h) select the appropriate locking tool 16, i) obtain the necessary locking force with the appropriate locking tool 16, and j) lock in the correct order. Therefore, when there is a lock-up management, it is sufficient, and in the "none" lock-up management, it is not enough or the freedom of the constructor.

In the lock-up management (YES in S303), the calculation of the locking force in accordance with the construction conditions is performed (S304). The locking force can also be calculated using the gasket locking force (full load), the locking torque, the bolt diameter, the recommended locking surface pressure, the gasket contact area, the torque factor, and the number of bolts.

When the gasket locking force is taken as W, the recommended locking surface pressure is σg, and the gasket contact area is Ag, the gasket locking force W becomes: W = σg × Ag ... (10) The gasket contact area Ag is covered by the pad The contact outer diameter and contact inner diameter of the sheet 8 can be obtained: Ag = (π / 4) × { (contact outer diameter) ² - (contact inner diameter) ² } ... (11) The gasket locking force is taken as W, lock When the solid torque is T[N・m], the torque coefficient (0.2) is k, the outer diameter (m) of the male screw is d, and the number of bolts is bn, the locking torque T can be specified as follows: T=k ×W×d/bn ...(12)

After the result of the calculation, the designated locking tool 16 and the locking sequence are performed (S305), and the locking is performed by the designated locking tool 16 and the locking sequence (S306). The locking may be in a predetermined locking order, such as JIS ((Japanese Industrial Standards) or ASME (American Society of Mechanical Engineers)). The sequence includes the surrounding direction of the locking sequence, the number of rotations, and the measurement using the caliper between the flanges.

The lock tool 16 is brought into contact with the nut 14 temporarily fixed to each of the bolts 12-1, 12-2, ..., 12-8, and the torque T is applied from the lock tool 16 to apply an appropriate locking force. This locking force is transmitted from the bolts 12-1, 12-2, ..., 12-8 toward the flanges 6-1, 6-2.

The elastic force acts on the flanges 6-1, 6-2 by the axial force F of each of the bolts 12-1, 12-2, ..., 12-8. The elastic interaction is, for example, when the bolt 12-1 is locked, the bolts 12-2 and 12-8 adjacent to the bolt 12-1 are loosened, and the locking force on the sides of the bolts 12-2 and 12-8 is lowered. The phenomenon.

In the lock, the construction monitoring process is performed (S307). In the construction monitoring process, the distribution pattern of the detected axial force is dynamically represented on the coordinates.

In the construction monitoring process, it is judged whether the locking has been completed (S308). In the case where the locking is continued (NO in S308), the steps from S306 to S308 are repeated, and when the locking is completed (YES in S308), the processing is completed.

In S303, when the lock management is "None" (NO in S303), the construction is replaced by S304 to S308. That is, the construction is allowed to be locked by the practitioner's intuition, depending on the intuition of the practitioner, by any of the locking tools 16 and the locking order (S309). In the locked state, construction monitoring is performed in the same manner as in S307 (S310), and construction is completed by the practitioner.

<construction monitoring>

Fig. 11 is a view showing the processing procedure of the construction monitoring processing of S307 of the sealing construction shown in Fig. 10. This processing sequence is an example of the execution order of the program executed by the computer, and is also an example of the construction monitoring method of the sealing material in the present invention.

The construction of the sealing material includes the steps of temporary fixing and formal fixing. The temporary fixing is a process performed before the formal fixing, and includes the mounting of the nut 14 to the bolts 12-1, 12-2, ..., 12-8, the calibration adjustment, the locking before the official locking of the nut 14, and the like. The calibration adjustment includes the position setting of the spacer 8 and the bolts 12-1, 12-2, ..., 12-8. The formal locking is achieved by applying a torque T to the bolts 12-1, 12-2, ..., 12-8 by the locking tool 16 to reach the target axial force (target locking force) in stages.

In the processing of the construction monitoring, the processor 62 takes in the respective detection axial forces from the sensor group 18 by the execution of the program (S401), and performs a patterning process of detecting the axial force F and the target axial force Fref (S402). ).

By the control of the processor 62, the distribution pattern 26-2 of the detected axial force F and the distribution pattern 26-1 of the target axial force Fref are dynamically displayed on the coordinate on the display 24 (S403).

The patterning process of the detected axial force F or the like and the locking process in the locking construction are monitored for the predetermined number of rotations (S404). When the predetermined number of rotations has not been reached, for example, when the number of rotations is 4 to 6 (NO in S404), S401 to S404 are continued. When the locking process reaches the predetermined number of rotations (YES in S404), the sealing process is completed (S405), and the process is terminated.

<axial force table 74>

FIG. 12 is a view showing the axial force table 74. The construction monitoring system 30 is provided with an axial force table 74 that records the number of rotations of the lock and the axial force. The axial force table 74 is included in the DB 72.

The axial force table 74 stores the number of revolutions and the detected axial force F of each of the sensors 18-1, 18-2, ..., 18-8. The number of rotations is one rotation of all the bolts 12-1, 12-2, ..., 12-8 in a predetermined order, and is made into a plurality of rotation numbers, for example, 4 to 6. Each of the detected axial forces is taken in from the sensor group 18 at a predetermined timing for each rotation. For example, at the rotation number I, the detection axis forces F1101, F1102, . . are taken in from the sensor 18-1 at a predetermined timing, and the detection axis forces F2101, F2102, ... are taken in from the sensor 18-2 at a predetermined timing, the following is The same processing. The detected axial force F is collected in the axial force table 74 for processing of the drawing information.

<parallelism table 76>

FIG. 13 shows a parallelism table 76. The construction monitoring system 30 is provided with a parallelism table 76 having a collection detection parallelism. This parallelism table 76 is included in DB72.

The parallelism table 76 stores the number of rotations and the gap size between the flanges detected by the respective sensors 28-1, 28-2, 28-3, and 28-4. Each rotation takes in the size of each gap detected from the sensor group 28 at a predetermined timing. For example, at the rotation number I, the gap sizes D1101, D1102, D1103, and D1104 are taken in from the sensor 28-1 at a predetermined timing, and the gap sizes D2101, D2102, ... are taken in from the sensor 28-2 at the same timing. The following is the same process. The gap size D taken in is collected in the parallelism table 76 for the determination of the parallelism between the flanges and its representation.

<Generation of the target axial force and the detection of the axial force distribution pattern and the addition and subtraction operation locking force>

A of Fig. 14 is a graph showing the distribution of the target axial force and the initial detected axial force. At the start of the construction monitoring process, the distribution pattern 26-1 of the target axial force Fref is shown on the coordinates, and overlaps with this, for example, the distribution pattern 26-2 indicating the detection axial force F in the temporarily locked state. At this point of time, the detected axial force F is small, and is located near the point O, and the distribution pattern 26-2 is represented by an area narrower than the distribution pattern 26-1 of the target axial force Fref. That is, by this, it can be recognized that the detection axial force F is small.

Fig. 14B is a graph showing the distribution of the target axial force and the detected axial force in the middle. When the number of rotations of the lock increases, the detection axial force F becomes large, and the distribution pattern 26-2 expands. At this point of time, although the distribution pattern 26-1 of the target axial force Fref is approached from the O point side, the detection axial force F is smaller than the target axial force Fref of the distribution pattern 26-1, and the distribution pattern is represented by a narrow area. 26-2. Even at this point of time, it is possible to grasp that the detection axial force F is insufficient. Further, at the coordinate axis y4, the detection axial force F4 protrudes from the same scale. From this protruding state, it is possible to grasp that the lock caused by the detection of the axial force F4 is large with respect to the other axial force F.

C of Fig. 14 is a distribution pattern showing the axial force of the target and the detected axial force at the end. The number of rotations of the lock reaches the last time, and the detected axial force F coincides with the target axial force Fref or reaches the vicinity thereof. That is, the distribution pattern 26-2 of the detected axial force F is a pattern to the similar shape in accordance with the distribution pattern 26-1 of the target axial force Fref, whereby the necessary sealing state can be obtained to the desired sealed state.

<Axial force adjustment>

A of Fig. 15 shows a state in which the detected axial force F approaches the target axial force Fref. At the bolt 12-1 of the coordinate axis y1, the detected axial force F1 reaches the target axial force Fref. On the other hand, the axial force F2 of the bolt 12-2 of the coordinate axis y2 is insufficient.

When the axial force F2 of the bolt 12-2 is increased from this state, the bolts 12-1 and 12-3 sandwiching the bolt 12-2 are elastically interacted and slackened, as shown in Fig. 15B, the axial force. F1 and F3 are reduced. From this state, in order to cause the detection axial forces F1 and F3 to reach the target axial forces F1ref and F3ref, it is necessary to increase or decrease the axial forces F1 and F3 and reduce the axial force F2 of the bolt 12-2.

<Effect of Embodiment 2>

According to this embodiment 2, the following effects can be obtained.

(1) When a torsion wrench is used for the locking tool 16, for example, a certain degree of unevenness is generated to the locking force. The lock of each of the bolts 12-1, 12-2, ..., 12-8 has a predetermined locking order defined by JIS specifications or the like. If the order is ignored or the order is mistaken, an error calibration is caused to cause so-called The unilateral locking state is generated. From this point of view, in order to achieve a proper seal and improve the locking efficiency, it is necessary to immediately monitor the axial force F imparted to each of the bolts 12-1, 12-2, ..., 12-8, and to achieve proper locking Construction skills. In addition, even skilled people are required to confirm skills, correct habits, etc., and seek higher technological advancement. The sealing is accomplished on condition that the locking is caused by the application of the appropriate axial force F and the proper sequence is followed. Appropriate locking force can be applied to the gasket 8 between the flanges 6-1, 6-2 by seeking an appropriate sequence, proper locking force, preventing insufficient locking or excessive locking, and preventing poor locking. The gasket 8 is buried in the gap between the flanges 6-1 and 6-2 to achieve an appropriate seal.

(2) According to the construction monitoring system 30, the relationship between the lock of the operator and the locking force acting on the member can be visually recognized.

(3) It is possible to visually confirm the locked state of the bolt that is locked by the operator, and to assist and correct the operator's locking feeling.

(4) An internship system that can be used for the bolting of the piping connection portion, and can be utilized for the construction training of the operator.

(5) When the construction monitoring system 30 is used, it contributes to the improvement of the construction capability of the operator.

(6) The function of the components such as the seals to be locked can be exerted without affecting the construction, and the reliability of the construction can be improved. [Example 3]

A of Fig. 16 is a processing sequence showing the setting of the target axial force of each of the spacers 8 in the third embodiment. In this processing sequence, the target axial force is calculated in accordance with the selection of the spacer 8 (S501) (S502). A distribution pattern indicating the target axial force is displayed on the coordinates (S503).

Fig. 16B is a distribution diagram showing the target axial force of the corresponding spacer 8 on the coordinates. The distribution pattern 26-11 is, for example, a target axial force for the spacer 8-1, and the distribution pattern 26-12 is, for example, a target axial force for the spacer 8-2. Further, the distribution pattern 26-13 is, for example, a display pad. The target axial force of the piece 8-3.

In this way, when the appropriate target axial force of each selected spacer 8 is calculated and the distribution pattern is represented on the coordinates, the necessary locking force can be easily realized in accordance with the selection of the spacer 8. Although the target axial force or the target locking force may vary depending on the gasket 8 or the bolt 12, the calculation of the locking force may be calculated by using, for example, the recommended locking surface pressure of the gasket and the size information of the bolt. Known system for locking torque. [Example 4]

Fig. 17 is a view showing the locking order of the bolts in the embodiment 4.

It is necessary to perform temporary locking and formal locking in a certain order for a plurality of bolts disposed around the flange joint 6 around the circumference.

For example, as shown in FIG. 17A, the locking mark 78 is moved from the completed bolt 12-8 to the bolt 12-1 to be next locked to prompt the bolt 12-1 to be locked. .

In this case, as shown in FIG. 17B, it may also be a bolt 12-1 that has been locked before, for example, the locking mark 78 is indicated by a broken line as a lock completion and the lock mark is made. 78 Move to the bolt 12-2 for the next lock to indicate the order.

Thus, by locking with the sequential representation, misalignment can be prevented and single-sided locking can be prevented. Improve construction and skill improvement with reliability. Alternatively, instead of the lock mark 78, the bolt number to be locked may be formed in a colored representation or blinking that is different from the other bolt numbers. [Example 5]

Fig. 18 is a view showing the processing procedure for determining the detection axial force in the fifth embodiment. This processing sequence is an example of a computer program executed by the PC 48.

In this processing sequence, the target axial force required for the surface pressure required for the selected spacer 8 is calculated (S601), and the target axial force and the detected axial force are compared (S602).

It is judged whether or not the detected axial force F is within the allowable range of the target axial force Fref, for example, ±15 [%] (S603). When the detected axial force F is within the allowable range of the target axial force Fref (YES in S603), the axial force is passed as the determination result (S604), and the detected axial force F is outside the allowable range of the target axial force Fref. (NO in S603), the axial force is judged as a result of the determination (S605).

The individual evaluation result is used to perform the comprehensive evaluation (S606). In the comprehensive evaluation, all of the individual evaluations are qualified, and even if one of them fails, the result of the determination is displayed on the display 24, and the determination is made as to whether or not the determination is acceptable (S607).

A of Fig. 19 is a distribution pattern 26-2 showing the detected axial force F as an evaluation target on the coordinates. In this example, it is understood that the axial forces F3 and F7 are smaller than the target axial forces F3ref and F7ref, and the axial force F6 is larger than the target axial force F6ref.

B of Fig. 19 is an example of a display evaluation table. The evaluation table 80 is provided with a target axial force column, an allowable range column, a detection axial force column, an individual evaluation column, and a comprehensive evaluation column. The target axial force is stored = Fref = 30 [kN], and the allowable range of the axial force = Fref ± 15 [%] = 25.5 [kN] - 34.5 [kN]. The sensor output of the sensor group 18 and the detection axial force of each bolt are accommodated in the detection axial force column.

In this example, the axial forces F1, F2, F4, F5, and F8 of the bolts 12-1, 12-2, 12-4, 12-5, and 12-8 are within the allowable range, and the bolts 12-3, 12 are The axial forces F3, F6, and F7 of -6 and 12-7 are outside the allowable range. Therefore, in the individual evaluation, the axial forces F1, F2, F4, F5, and F8 which are within the allowable range are acceptable, and the axial forces F3, F6, and F7 outside the allowable range are unacceptable. Therefore, the comprehensive assessment is unqualified.

These are stored in the evaluation form 80 and displayed on the display 24 and notified to the operator. For the "failed" axial force, an alarm such as red or red flashing may be displayed, and the "qualified" axial force may indicate a safety seal such as green.

In this way, it can be informed that the difference in the axial force of the detected axial force impairs the reliability of the seal and can promote proper sealing construction. [Embodiment 6]

Fig. 20 is a view showing the processing procedure for judging whether or not the locking order is acceptable in the sixth embodiment. This processing sequence is an example of displaying a process realized by a computer program executed by the PC 48 or a construction monitoring method.

In this processing sequence, the lock between the flanges 6-1 and 6-2 is used as a trigger (S701), and the order of the lock is detected (S702). This sequence may be, for example, a detection or determination from the detection of the change in the axial force and the movement information of the transition and the locking position. It is judged whether or not the detected order coincides with the predetermined order of the predetermined lock reference (S703). The locking sequence can be based on specifications such as JIS or ASME as a predetermined locking reference.

When the detected order coincides with the predetermined locking order (YES at S703), the display 24 performs the qualified display (S704). This qualified display can be displayed together with the distribution pattern of the axial force.

When the detected order does not coincide with the predetermined locking order (NO in S703), an error display is performed on the display 24 (S705). This error display can also be displayed together with the distribution pattern of the axial force.

In this way, when the locking order is determined by comparison with the predetermined locking order, it is possible to prevent the unilateral locking which is generated when the locking is not performed in the same order, and to reduce the risk of leakage. Moreover, if the qualified display or the error display is displayed together with the distribution pattern of the axial force described above, the operator can be familiar with the fact that even if the detection axial force and the target axial force are consistent, if the order is not suitable, it is caused by the single locking. The risk of leakage will increase. [Embodiment 7]

In the above embodiment, although the flange joint 6 of the seal construction portion 4 is fixed to the fixed position, the flange joint 6 can be freely changed to an arbitrary position, as shown in A of FIG. 21, or the flange can be used. The position of the joint 6 is changed, for example, to the horizontal direction. When the position of the flange joint 6 can be arbitrarily changed, when the actual working environment is simulated, the lock can be appropriately trained even when the posture is different. Moreover, unevenness in the locking force due to the working environment or the posture of the operator can be understood to lower the sealing performance.

In the above embodiment, the single flange joint 6 is included in the seal construction portion 4. However, as shown in FIG. 21B, the top portion of the gantry 32 may be in the middle of the first seal construction portion 4-1. The second sealing construction portion 4-2 is included in the portion. In FIG. 21, the same portions as those in FIGS. 1 and 7 are denoted by the same reference numerals. The seal construction portion 4-1 includes, for example, a flange joint 6A that is locked by eight bolts, and the seal construction portion 4-2 includes, for example, a large-diameter flange joint 6B that is locked by 12 bolts. . In this way, when the flange joints are combined, construction with different conditions can be performed at substantially the same position.

[Other implementation types]

(1) The information generation unit 22 may determine the locking order of each bolt from the increase or decrease of the axial force, for example, and present the determination result to the display 24. Although the locking order is JIS or ASME, since it is not locked in the same order, it will produce a single locking, and the risk of liquid or gas leakage becomes high. Therefore, it is also possible to display an error indication or an alarm on the screen to inform Operators.

(2) In the second embodiment, the first sensors 18-1, 18-2, ..., 18-8 including the detection axial force and the second sensors 28-1 and 28 for detecting the parallelism are included. In addition to the fact that either of the two, 28-3, and 28-4 is included, any one of the distribution pattern indicating the detection axial force or the distribution pattern indicating the parallelism may be formed.

(3) In the above embodiment, the first distribution pattern and the second distribution pattern are shown on the common coordinates. However, each of the distribution patterns may be displayed on an individual coordinate, or each of the distribution patterns may be used. The inner areas are colored differently and can be colored for recognition.

(4) As described above, the best mode for carrying out the invention and the embodiments have been described. The present invention is not limited to the above description. Various modifications and changes can be made by those skilled in the art in light of the scope of the invention, or the invention. Needless to say, such variations or modifications are also included in the scope of the invention.

[Industry use possibility]

According to the present invention, the construction monitoring of the sealing material can be performed immediately, and the axial force distribution which can be compared with the target axial force and the distribution pattern indicating the parallelism of the flange joint are displayed on the display, and the expression can be confirmed and constructed, and evaluated. The construction results, and the skills for construction are improved.

2‧‧‧ Construction monitoring device

4‧‧‧ Sealing Construction Department

4-1‧‧‧First Seal Construction Department

4-2‧‧‧2nd Sealing Construction Department

6‧‧‧Flange joint

6-1~6-2‧‧‧Flange

6A‧‧‧Flange joint

6B‧‧‧Flange joint

8‧‧‧shims

8-1‧‧‧shims

8-2‧‧‧shims

10-1~10-2‧‧‧Pipe

12-1~12-6, 12-8‧‧‧ bolts

14‧‧‧ Nuts

16‧‧‧Locking tools

18‧‧‧1st sensor group (sensor group)

18-1~18-8‧‧‧Sensor

20‧‧‧Data Accumulation Department

22‧‧‧Information Generation Department

24‧‧‧ display

26-1‧‧‧1st distribution graphic

26-2‧‧‧2nd distribution graphic

26-3‧‧‧3rd distribution graphic

26-11‧‧‧ distribution graphics

26-12‧‧‧ distribution graphics

26-13‧‧‧Distribution graphics

28‧‧‧2nd sensor group (sensor group)

28-1~28-4‧‧‧Sensor

30‧‧‧ Construction Monitoring System

32... gantry 34... gantry 36... floor 38... caster 40... cable 42... pedestal 44... shelf 46... data logger 48... personal computer (PC) 50... top plate 52... cable 54... practitioner 56... screen 58... Bolt body 60... strain gauge 62... processor 64... memory unit 66... output input unit (I/O) 68... communication unit 70... operation input unit 72... database (DB) 74... axial force table 76... parallelism table 78...locking mark 80...evaluation table D1~D4... gap D1101~D4402... gap size F...axial force F1~F8...axial force F1101~F8402...detection axial force F2'... axial force F8'... axial force F1ref~F8ref ...target axial force O...center S101~S106...steps S201-S206...steps S301-S310...steps S401-S405...steps S501-S503...steps S601-S607...steps S701-S705...step T...torque a...arrow b... Arrow c...arrow x,y,z...coordinate axis y1~y8...coordinate axis y11~y14...coordinate axis q...angle

Fig. 1 is a view showing a construction monitoring device for a sealing material in a first embodiment. 2 is a flow chart showing the processing sequence of construction monitoring. Fig. 3 is a graph showing the distribution of the target axial force on the coordinates A and B, and showing the axial force which is changed by the elastic interaction. 4 is a view showing a construction monitoring device of the sealing material in Embodiment 1. Figure 5 is a flow chart showing the processing sequence of construction monitoring. Fig. 6 is a view showing a distribution pattern of the parallelism of the A and B flanges. Fig. 7 is a view showing a construction monitoring system of the sealing material in the second embodiment. Fig. 8 is a view showing a bolt provided with a strain gauge. Fig. 9 is a diagram showing the configuration of a construction monitoring system. Figure 10 is a flow chart showing the sequence of sealing construction. Figure 11 is a flow chart showing the processing sequence of construction monitoring. Fig. 12 is a view showing an example of an axial force table. Fig. 13 is a diagram showing an example of a parallelness table. A to C of Fig. 14 are diagrams showing changes in the distribution pattern of the axial force. A and B of Fig. 15 are diagrams showing changes in the distribution pattern of the axial force. A and B of Fig. 16 are diagrams for explaining the setting of the target axial force for each of the spacers in the third embodiment.

17 and A are diagrams for explaining the representation of the locking order in the fourth embodiment.

Fig. 18 is a flow chart showing the processing procedure for determining whether or not the locking force in the fifth embodiment is acceptable.

A and B of Fig. 19 are diagrams showing a distribution pattern of the locking force and an evaluation table.

Fig. 20 is a flow chart showing the processing procedure for determining whether or not the locking order in the sixth embodiment is acceptable.

A and B of Fig. 21 are diagrams showing the seal construction portion in the seventh embodiment.

[Type for implementing the invention]

Claims (19)

A construction monitoring device for a sealing material, which is sealed by a plurality of bolts locked to a flange joint with a sealing member, and characterized by comprising: a graphic information generating mechanism for generating a plurality of coordinates extending from a center point into a radial shape; Determining the target axial force of the bolt or the detecting axial force of the bolt on each coordinate at a distance from the center point, and connecting the target axial force on the adjacent coordinate or the aforementioned detecting axial force A first distribution pattern generated based on the target axial force or a second distribution pattern generated based on the detected axial force is generated on the coordinate. The construction monitoring device for a sealing material according to claim 1, wherein the graphic information generating means superimposes the first distribution pattern and the second distribution pattern on a common coordinate. A construction monitoring device for a sealing material is sealed by sealing a plurality of bolts to a flange joint with a plurality of bolts, and is characterized by: a plurality of first sensors for detecting axial force of each bolt; and an information generating unit Generating the distribution information of the target axial force by using the target axial force and position information of the axial force, and generating the distribution information of the axial force by using the axial force and the position information; and the display indicating the target axis The first distribution pattern of the force is presented on the coordinates, and the second distribution pattern indicating the axial force is presented on the coordinates. The construction monitoring device for the sealing material of claim 3, further comprising a second sensor for detecting the parallelism between the flanges of the flange joint, wherein the information generating portion is provided by the sensor of the second sensor The output generates parallelism information, and the display prompts a third distribution pattern indicating the degree of parallelism between the flanges. The construction monitoring device of the sealing material of claim 3, wherein the information generating unit sets a target locking force for each sealing material, and refers to the lock calculated by the flange of the flange joint and the size information of the bolt. The solid torque determines whether the locking force of the sealing material reaches the target locking force for each bolt, and prompts the determination result on the display. The construction monitoring device for the sealing material of claim 3, wherein the operation is simulated by changing the position or angle of the sealing construction portion having the flange joint or by changing the position or angle of the flange joint. surroundings. A construction monitoring program for a sealing material is a construction monitoring program of a sealing material executed by a computer for realizing the following functions by using the foregoing computer: generating a plurality of coordinates extending from a center point into a radial shape at a distance from the center point Determining the target axial force of the bolt or the detecting axial force of the bolt on each coordinate, connecting between the target axial forces on the adjacent coordinates or between the detection axial forces, and generating a basis on the coordinates a first distribution pattern generated by the target axial force or a second distribution pattern generated by detecting the axial force. In the construction monitoring program of the sealing material of claim 7, the function of superimposing the first distribution pattern and the second distribution pattern on a common coordinate is realized by the computer. A construction monitoring program for a sealing material is a construction monitoring program of a sealing material executed by a computer for realizing the following functions by using the aforementioned computer: receiving a sensor output from a plurality of first sensors detecting the axial force of each bolt Generating the distribution information of the target axial force by the target axial force and position information of the axial force, and generating the distribution information of the axial force by the axial force and the position information; and indicating the axial force of the target The first distribution pattern is presented on the coordinates, and the second distribution pattern indicating the axial force is presented on the coordinates. The construction monitoring program of the sealing material of claim 9 further utilizes the aforementioned computer to realize the following functions: receiving the sensor output from the second sensor detecting the parallelism between the flanges of the flange joint; The detector output generates parallelism information; and a third distribution pattern indicating the aforementioned parallelism between the flanges is presented. The construction monitoring program of the sealing material of claim 9 further utilizes the aforementioned computer to realize the following functions: setting a target locking force for each sealing material, and determining whether the locking force of the sealing material reaches the target for each bolt Locking force; use the display to indicate the result of the determination. The construction monitoring program of the sealing material of claim 9 further realizes the following functions by using the above computer: The locking order of each bolt is determined, and the result of the determination is presented to the display. A construction monitoring method for a sealing material, which is sealed by a plurality of bolts locked to a flange joint with a sealing member, and is characterized in that the method includes the following steps: The graphic information generating mechanism generates a plurality of radial extending from a center point. a coordinate indicating a target axial force of the bolt or a detected axial force of the bolt on each coordinate at a distance from the center point, and connecting the target axial force on the adjacent coordinate or the detection axis The first distribution pattern generated by the target axial force or the second distribution pattern generated based on the detected axial force is generated on the coordinate. A construction monitoring method for a sealing material, which is sealed by a plurality of bolts locked to a flange joint with a sealing member, and is characterized by comprising the following steps: detecting an axial force of each bolt; and aiming at the axial force The axial force and the position information generate the distribution information of the target axial force, generate the distribution information of the axial force by the axial force and the position information, and present the first distribution pattern indicating the target axial force on the coordinate, And the second distribution pattern indicating the axial force is presented on the coordinates. The method for monitoring the construction of the sealing material of claim 14, further comprising the steps of: detecting the parallelism between the flanges of the flange joint; generating parallelism information by the parallelism; and prompting to indicate the flange The third distribution pattern of the aforementioned parallelism. A construction monitoring system for a sealing material, which is sealed by a plurality of bolts locked to a flange joint with a sealing material, and is characterized by: a sealing construction part, comprising a sealing structure for detecting and clamping the sealing material a first sensor for axial force of the plurality of bolts of the joint, or a second sensor for detecting parallelism between the flanges of the flange joint; and a graphic information generating mechanism for generating the extension from the center point a plurality of radial coordinates, wherein the target axial force of the bolt or the detected axial force of the bolt is expressed on each coordinate at a distance from the center point, and the target axial force on the adjacent coordinate is connected Or the first distribution pattern generated by the target axial force or the second distribution pattern generated based on the detected axial force is generated between the detection axial force. A construction monitoring system for a sealing material, which is sealed by a plurality of bolts locked to a flange joint with a sealing material, and is characterized by: a sealing construction part, comprising a sealing structure for detecting and clamping the sealing material a first sensor for axial force of a plurality of bolts of the joint or a second sensor for detecting parallelism between flanges of the flange joint; and an information generating unit for wired or wireless and the foregoing 1 sensor or a second sensor connection, generating the distribution information of the target axial force by using the target axial force and position information of the axial force, and generating the distribution information of the axial force by using the axial force and the position information And generating parallelism information by using the parallelism; and displaying, by wire or wirelessly, the information generating unit is connected, and prompting a first distribution pattern indicating the target axial force and prompting to indicate the axial force The second distribution pattern or the third distribution pattern indicating the parallelism is represented on the coordinates. A construction internship system for sealing materials, which is sealed by a plurality of bolts locked to a flange joint with a sealing material, and is characterized by: a sealing construction part, comprising a sealing structure for detecting and clamping the sealing material a first sensor for axial force of the plurality of bolts of the joint, or a second sensor for detecting parallelism between the flanges of the flange joint; and a graphic information generating mechanism for generating the extension from the center point a plurality of radial coordinates, wherein the target axial force of the bolt or the detected axial force of the bolt is expressed on each coordinate at a distance from the center point, and the target axial force on the adjacent coordinate is connected Or the first distribution pattern generated by the target axial force or the second distribution pattern generated based on the detected axial force is generated between the detection axial force. A construction internship system for sealing materials, which is sealed by a plurality of bolts locked to a flange joint with a sealing material, and is characterized by: a sealing construction part, comprising a sealing structure for detecting and clamping the sealing material a first sensor for axial force of a plurality of bolts of the joint or a second sensor for detecting parallelism between flanges of the flange joint; and an information generating unit for wired or wireless and the foregoing 1 sensor or a second sensor connection, generating the distribution information of the target axial force by using the target axial force and position information of the axial force, and generating the distribution information of the axial force by using the axial force and the position information And generating parallelism information by using the parallelism; and displaying, by wire or wirelessly, the information generating unit is connected, and prompting a first distribution pattern indicating the target axial force and prompting to indicate the axial force The second distribution pattern or the third distribution pattern indicating the parallelism is represented on the coordinates.