TW201947183A - Experiment device, experiment system, program, and method, and learning method - Google Patents

Abstract

The present invention comprises: a first pipe part (heating-side header pipe) for introducing a high-temperature fluid (heating oil HOL); a second pipe part (cooling-side header pipe) for introducing a cooling fluid (cold water LW); and a fastening part that fastens the first pipe part and second pipe part and has, provided therein, a partition plate for partitioning the first pipe part and second pipe part. The temperature difference between the high-temperature fluid in the first pipe part and the cooling fluid in the second pipe part produces a temperature gradient in the fastening part. As a result, the present invention provides an experiment device, system, program, and method and a learning method for reproducing the operating conditions at an actual site where sealing is to be carried out.

Description

Experimental device, experimental system, program, method and learning method

FIELD OF THE INVENTION The present invention relates to an experiment / verification technique related to a change in heat generated in a fastening portion of a pipeline.

BACKGROUND OF THE INVENTION A flange joint is provided to fasten a pipeline or a pipeline to a valve, etc. Each flange joint is fastened by a plurality of bolts and nuts by sandwiching gaskets.
It is known to perform a performance test or evaluation on the joint portion of such a pipe such as tightness (for example, Patent Document 1).
Prior art literature patent literature

Patent Document 1: Japanese Patent Laid-Open No. 2013-205146

SUMMARY OF THE INVENTION Problems to be Solved by the Invention However, a flange or a bolt with a gasket interposed therebetween is affected by the heat generated by the temperature of the fluid flowing in the fastening pipe. When the fluid changes from high temperature to low temperature, from low temperature to high temperature, or when fluid flows at different temperatures before and after the closed valve, etc., these temperature differences cause thermal stress in the fastening portion.
During the sealing construction, even if the sealed state is maintained at high accuracy, if the bolt temperature changes from low temperature to high temperature, or from high temperature to low temperature, the axial force of the bolt that locks the flange will change. That is, when the axial force is changed, the gasket surface pressure is also changed. If the pressure on the surface of the gasket is extremely reduced, it may become an unpredictable situation such as a fluid leakage.
The deterioration of the seal due to such a temperature change is a phenomenon that occurs even when the accuracy of the seal construction is high, and has the following problem: If the seal construction is incomplete, this phenomenon will become more significant. In sealing construction, in order to avoid such a phenomenon, the seal constructor is required to have careful and high construction skills.

However, it has the following problems: In a construction site, experimental construction that imagines a situation that is difficult to predict is not allowed, and it is difficult to imagine such a situation with shallow construction experience.
It is very important to predict the working condition of the site and to imagine the thermal stress caused by the temperature difference in ensuring the safety of the sealing construction.
Regarding such a problem, Patent Document 1 does not disclose or suggest it, nor does it disclose or suggest a solution to the problem.
Therefore, in view of the above-mentioned problems, an object of the present invention is to provide an experimental device, system, program, method, and learning method that can reproduce the site of a sealing construction and its working conditions, and perform phenomena such as a decrease in the surface pressure of a gasket. Experiment and learn.
Means to solve the problem

In order to achieve the above object, according to one aspect of the experimental device of the present invention, a first pipe body portion is introduced with a high temperature fluid; a second pipe body portion is introduced with a low temperature fluid; and a fastening portion is provided to the first pipe body portion. A partition plate that separates from the second pipe body portion, fastens the first pipe body portion to the second pipe body portion, and connects the second pipe body with the high temperature fluid of the first pipe body portion. The temperature difference of the low-temperature fluid in the portion causes a temperature gradient in the fastening portion.
In this experimental device, the fastening portion may further include a gasket disposed between the zone partition and the first pipe body portion, and between the zone partition and the second pipe body portion, respectively; Bolts to fasten the flange joints of the first pipe body portion and the second pipe body portion.
In this experimental device, the first pipe body portion may further include a heating portion that heats the high-temperature fluid, and a temperature detection unit that detects a temperature of the high-temperature fluid.
The bolt may further include an axial force detection unit that detects axial force, and a temperature detection unit that detects temperature.
This experimental device may further include: a first port portion that introduces a low-temperature fluid into the second pipe body portion; a second port portion that discharges the low-temperature fluid from the second pipe body portion; and a low-temperature fluid supply A portion is connected to the first port portion and supplies a low-temperature fluid.
This experimental device may further include: a housing portion for providing the first and second pipe body portions; a tank for storing the low-temperature fluid; and a pump for supplying the low temperature to the second pipe body portion. fluid.

In order to achieve the above object, according to one aspect of the experimental system of the present invention, there is provided any one of the experimental devices already mentioned, and a temperature detecting section for the flange of the first pipe body portion and the flange of the second pipe body portion. To detect the temperature of any one or more of the high temperature fluid and the low temperature fluid; an axial force detection unit that detects the axial force of each bolt; a processing unit that receives the detected temperature from the temperature detection unit and from the axial force The detection unit receives the foregoing information on the detected axial force, and establishes a relationship with the time information, the detection position, or the detection member, and generates prompt information from the foregoing detected temperature and the detected axial force transition information; and the information prompting unit displays an image prompt. The aforementioned tips.
In this experimental system, a liquid level detection unit that detects the liquid level of the low-temperature fluid in the second pipe body portion may be provided, and the detection liquid level detected by the liquid level detection unit is provided to the processing. And prompt in the aforementioned information prompting section.
This experimental system may further include: a flow rate adjustment unit that adjusts a supply amount of the low-temperature fluid supplied to the second pipe body portion; and a liquid level adjustment unit that adjusts a liquid of the low-temperature fluid in the second pipe body portion. Bit.

In order to achieve the above object, one aspect of the program according to the present invention is a program implemented by a computer, and the following functions are realized by the aforementioned computer: the function of warming the high-temperature fluid introduced into the first pipe body portion; The function of setting the introduction time point of the low-temperature fluid to the second pipe body portion; any one of the flange on the first pipe body portion side, the flange on the second pipe body portion side, the high-temperature fluid, and the low-temperature fluid Or the function of receiving the detection temperature, the detection axial force of each bolt fastened between the flanges of the flange joint, and the information indicating the detection member or the detection position continuously, regularly or irregularly; The function of generating the aforementioned prompt information of the detected temperature or the aforementioned axial force; and the function of establishing a relationship between the aforementioned detected temperature or the aforementioned axial force and the information indicating the inspection time point, the inspected member, or the inspected position, and prompting in the information prompting section.

In order to achieve the above object, one aspect of the experimental method according to the present invention includes the following steps:
A partition wall is provided to separate the first pipe body portion into which the high-temperature fluid is introduced and the second pipe body portion into which the low-temperature fluid is introduced, and the first pipe body portion and the second pipe body are separated by a fastening portion. Steps of fastening
A step of introducing a high-temperature fluid into the first pipe body portion and increasing the temperature thereof;
A step of introducing a low-temperature fluid into the second pipe body portion, and generating a temperature gradient in the fastening portion by a temperature difference between the low-temperature fluid and the high-temperature fluid;
Detecting the temperature of one or more of the flange of the first pipe body portion, the flange of the second pipe body portion, the high temperature fluid, and the low temperature fluid in the fastening portion, and detecting the temperature A step of establishing a relationship with the component information to receive it; and a step of detecting the axial force of each bolt and establishing a relationship between the detected axial force and the position information on the flange joint to receive the step.

To achieve the above object, one aspect of the learning method according to the present invention includes the following steps:
Steps for setting experimental conditions in the experimental device already mentioned;
A step of introducing a low-temperature fluid into the second pipe body portion while maintaining the high temperature state after the first pipe body portion is heated with a high temperature fluid, and cooling the second pipe body portion side;
Detecting the temperature of any one or more of the flange of the first pipe body portion, the flange of the second pipe body portion, the high temperature fluid, and the low temperature fluid of the experimental device, and detecting the temperature and Steps to establish relationship between location or component information to receive;
A step of detecting the axial force of each bolt and establishing a relationship between the detected axial force and the detected position information on the flange joint to receive it;
Receive the detected temperature from the temperature detection section, receive the transition information of the detected axial force from the axial force detection section, and establish a relationship with the time information, the detection position, or the detection member, and from the detected temperature and the transition of the detected axial force Steps to generate prompt information;
Steps to prompt the aforementioned prompt information with images; and steps to evaluate experimental results.
Invention effect

According to the present invention, any of the following effects can be obtained.
> Experimental Device>
(1) The first pipe body part and the second pipe body part separated by the partition plate can be simulated between the pipe bodies blocked by the valve, and the high temperature fluid can be used to heat the first pipe body part and the second pipe body. A low-temperature fluid is introduced into the body to form an arbitrary temperature gradient in the fastening portion.
(2) The temperature gradient formed in the fastening part can be tested in a wide range from the actual machine state to the abnormal state that can be predicted by the actual machine. In such an experiment, the first pipe body part can be obtained at any time point The status information of the flange, the flange of the second pipe body, the temperature of the high-temperature fluid, the low-temperature fluid, and the bolt, the axial force of the bolt, and the low-temperature fluid level, etc.

> Experimental System>
(3) It is possible to generate an abnormal state from the actual machine state to an actual machine state in the experimental device, obtain its detection information, and prompt with an image.
(4) The detection information obtained in the experimental device can be received by establishing a relationship with the detection location or time point of the experimental device, and the image can be used to provide information such as the change of the detection temperature and the change of the axial force. And quickly identify the conditions generated in the experimental device.

>Programs>
(5) It is possible to arbitrarily plan and formulate an experimental program performed in an experimental device, and receive a phenomenon predicted by an actual device from the experimental device.
(6) The relationship between the temperature rise of the high-temperature fluid, the introduction time of the low-temperature fluid, the detection temperature, or the detection axial force can be established at any time point, such as continuously, periodically or irregularly, with information indicating the detection member or the detection position. Receive, and let the information generated in the experimental device be generated as prompt information, and prompt in the information prompt section.

> Experimental methods>
(7) The steps from the assembly of the experimental device to the experiment can be performed in stages, and the state of the actual machine can be achieved.
(8) The experimental conditions generated by the program can be supplemented artificially, and the exquisite experimental results can be obtained.

> Learning Methods>
(9) An experimental device can be used to set arbitrary experimental conditions to conduct experiments and evaluate the experimental results including detection information, while learning the corresponding processing method while simulating a phenomenon on an actual machine.

In addition, other objects, features, and advantages of the present invention should be made clearer by referring to additional drawings and embodiments.

Forms used to implement the invention
[First Embodiment]
> Experimental Device>
FIG. 1A shows the outline of the experimental apparatus of the first embodiment, and FIG. 1B shows the cross section of the apparatus body. The configuration shown in FIGS. 1A and 1B is only an example, and the present invention is not limited to the invention having such a configuration.
This experimental device 2 includes a first tube body portion 4, a second tube body portion 6, and a fastening portion 8, and constitutes a device body 10.
The first pipe body portion 4 includes a pipe body 12, a flange joint (hereinafter simply referred to as “flange flange”) 14-1, a plugging plate 16, a heating portion 18, and a temperature detection portion 20-1, and a high-temperature fluid 22 is introduced. The high-temperature fluid 22 may be, for example, a heating fluid, a heating medium oil, a heating oil, or the like.
The second pipe body portion 6 includes a flange joint (hereinafter simply referred to as a "flange") 14-2 on the front end side of the pipe body 24, a pipe body 24, a blocking plate 26, a temperature detection portion 20-2, and a liquid level detection portion 28. And for low-temperature fluid 30 to be introduced. The low-temperature fluid 30 may be, for example, a cooling fluid, cold water, liquid nitrogen, or an antifreeze. The second pipe body portion 6 has an introduction port 32 as a first port portion for introducing the low-temperature fluid 30 and a discharge port 34 as a second port portion for discharging the low-temperature fluid 30. The clogging plate 26 is made of, for example, a transparent member, and the liquid level detection unit 28 is made of, for example, a camera. The liquid level can be detected by imaging of the low-temperature fluid 30.

The first pipe body portion 4 and the second pipe body portion 6 are fastened by the fastening portion 8. The fastening portion 8 includes flanges 14-1 and 14-2, a partition plate 36, spacers 38-1 and 38-2, and a plurality of bolts 40 and nuts 42. The partition plate 36 is provided between the flanges 14-1 and 14-2, and a gasket 38-1 is provided between the partition plate 36 and the flange 14-1. The partition plate 36 and the flange 14 are provided. A spacer 38-2 is provided between -2.
The bolts 40 and the nuts 42 are arranged at a certain angular interval on the peripheral edges of the flanges 14-1 and 14-2. The flanges 14-1 and 14-2 are locked by bolts 40 and nuts 42. Each opening 44 of the flanges 14-1 and 14-2 is partitioned by a partition plate 36 and spacers 38-1 and 38- 2 blocked.
The flange 14-1 has a temperature detection unit 20-3, and the flange 14-2 has a temperature detection unit 20-4, and each temperature is individually detected. Each detection information can be retrieved by establishing a relationship with the identification information of the flanges 14-1 and 14-2.
Each bolt 40 has an axial force detection unit 46 and a temperature detection unit 20-5, and can detect the axial force and temperature of each bolt 40 and take out detection information that has been related to the identification information of the bolt 40.

According to such a configuration, if the high-temperature fluid 22 is housed and maintained in the first pipe body portion 4 and the low-temperature fluid 30 is introduced into the second pipe body portion 6 from the introduction port 32, the high-temperature fluid 22 and the low-temperature fluid 30 can be used. Temperature difference, a temperature gradient is forcibly generated in the fastening portion 8. With respect to the high-temperature place formed by contact with the high-temperature fluid 22, heat shrinkage occurs at the cooling place formed by the low-temperature fluid 30, and the axial force of each bolt 40 to be cooled decreases.

> Effects of the first embodiment>
According to this first embodiment, the following effects can be obtained.
(1) The tightening portion 8 can be tightened by the flange 14-1, 14-2, the spacers 38-1, 38-2, the bolt 40, and the nut 42 by a predetermined torque in the same manner as the actual machine. To seal construction.
(2) After the sealing construction is performed in the same manner as the actual machine, the first pipe body portion 4 can be heated to a predetermined temperature by the high-temperature fluid 22, and the second pipe body portion 6 can be cooled by the low-temperature fluid 30, and the The portion 8 applies a load caused by a temperature difference.
(3) In this state, the temperature of the high-temperature fluid 22 can be detected by the temperature detection unit 20-1, the temperature of the low-temperature fluid 30 can be detected by the temperature detection unit 20-2, and the flange 14- 1 temperature, the temperature of the flange 14-2 is detected by the temperature detection unit 20-4, and the temperature of the bolt 40 is detected by the temperature detection unit 20-5, and the relationship between each detection temperature and the detection location and time can be taken out, and This time can be monitored.

[Second Embodiment]
> Experimental System 50>
FIG. 2 shows an experimental system 50 according to a second embodiment. In FIG. 2, the same parts as those in FIG. 1 are assigned the same reference numerals.
This experimental system 50 includes an experimental device 2, an information collection section 52, a processing section 54, a storage section 56, an input operation section 58, an information presentation section 60, a heating control section 62, a low-temperature fluid supply section 64, and a low-temperature fluid adjustment section 66. Since the experimental device 2 has already been mentioned, the description of its configuration is omitted. The experimental device 2 may include a heating control unit 62, a low-temperature fluid supply unit 64, and a low-temperature fluid adjustment unit 66.

The information collection unit 52 collects and accumulates detection information from the experimental device 2. The processing unit 54 is constituted by, for example, a computer, and the information collection unit 52 receives the detection information obtained in the experimental device 2 and executes information processing such as image processing of the data. The storage unit 56 reads / reads information under the control of the processing unit 54. In addition to the experimental program, the storage unit 56 can also store test information and the like.
The input operation unit 58 is used for setting experimental conditions or conditions for presenting detection information. The information presentation unit 60 is controlled by the processing unit 54 and uses, for example, LCD (Liquid Crystal Display) to display image presentation information such as detection information or experimental results.
The low-temperature fluid supply unit 64 is an example of a low-temperature fluid adjustment mechanism that supplies the low-temperature fluid 30 to the second pipe body portion 6 through the introduction port 32, and is one of the adjustment units that adjusts the supply amount of the low-temperature fluid 30 to the second pipe body portion 6. An example. The low-temperature fluid adjusting unit 66 is an example of a liquid level adjusting unit, and adjusts the liquid level by discharging the low-temperature fluid 30 from the second pipe body portion 6 so as to be suitable for the experimental conditions.

> Collected Information by the Information Collection Unit 52>
The information collecting unit 52 can continuously receive the axial force, the bolt temperature, the flange temperature, the heating fluid temperature, and the cooling fluid temperature detected from the experimental device 2.
> Processing by the processing unit 54>
The control of this processing unit 54 includes an information receiving process 68, a point-in-time generation 70, a read / read process 72, and an information presentation process 74.
a) Information receiving processing 68
In this information receiving process 68, the temperature of the temperature detecting sections 20-1, 20-2, 20-3, 20-4, 20-5 and the axial force of the axial force detecting section 46 are detected from the information collecting section 52. Receive the detection information. Each detection information is received in association with identification information such as a detection position, a detection member, and a detection time point (time).

b) Time point 70
Generated at this time point 70 includes the detection time point, the reception time point of the detection information, the heating time point of the high-temperature fluid 22, the cooling start time point of the second pipe body portion 6 by the low-temperature fluid 30, and the storage portion 56. Detection time of reading information, reading time of stored information, etc.
c) Read / Read Process 72
In this read / read process 72, the high temperature fluid temperature 76, the low temperature fluid temperature 78, the flange temperature 80-1, 80-2, the bolt temperature 82, the detected axial force 84, and other control information are performed on the storage unit 56. Read them, read them.
d) Information prompt processing 74
This information prompt processing 74 establishes a relationship between detection information such as temperature, axial force, and liquid level, and identification information such as a detection position, a detection member, or a detection time point, and generates the detection information, and generates, for example, an image. display.

> Storage Information of Storage Unit 56>
In this storage unit 56, the high-temperature fluid temperature 76, the low-temperature fluid temperature 78, the flange temperature 80-1, 80-2, the bolt temperature 82, and the detection axial force 84 can be stored as an experiment information file.
The high temperature fluid temperature 76 is stored in an experiment information file (for example, the heating oil temperature information file 168 shown in FIG. 10A) in a relationship with the attribute information and the detection time point information of the high temperature fluid 22. In this case, the information of the established relationship is not limited to the information of the above information. The high-temperature fluid temperature 76 may be provided with a storage field for other detection information (not shown), and may be stored in association with other detection information stored in the storage field.
The low temperature fluid temperature 78 is stored in an experiment information file (for example, the cold water temperature information file 170 shown in FIG. 10B) in a relationship with attribute information, detection time point information, and other detection information of the low temperature fluid 30. In this case, the information of the established relationship is not limited to the information of the above information. The low-temperature fluid temperature 78 may be provided with a storage field of other detection information (not shown), and may be stored in association with other detection information stored in this storage field.
The flange temperature 80-1 is related to the identification information of the flange 14-1, the test time point information, and other test information and is stored in the experimental information file (for example, the flange temperature information file 172-1 shown in FIG. 10C) ) To store. Similarly, the flange temperature 80-2 is related to the identification information of each flange 14-2, the detection time point information, and other detection information, and is stored in the experimental information file (for example, the flange temperature information shown in FIG. 10D). File 172-2). In this case, the information of the established relationship is not limited to the information of the above information. The flange temperatures 80-1 and 80-2 may be provided with storage areas for other detection information (not shown), and may be stored in association with other detection information stored in this storage area.
The bolt temperature 82 is stored in the experimental information file (for example, the bolt temperature information file 174 shown in FIG. 11A) by establishing a relationship with the detection information such as the position or identification information of each bolt 40, the detection time point information, and the detection axial force 84. To store.
The detected axial force 84 is established in the experimental information file by establishing a relationship with the temperature information of the position or identification information of each bolt 40, the detection time point information, and the bolt temperature 82 (for example, the axial force information file 176 shown in FIG. 11B) To store.

> Experimental sequence>
FIG. 3 shows the experimental sequence of the experimental system 50. This experimental sequence includes control of the processing unit 54 by a computer, an example of an experimental method, a processing step, and the like. In this processing sequence, S is a step, and the number added to S is a sequence shown as an example.
In this experiment procedure, initialization of the processing unit 54 is performed (S101), and input of experimental information and the like is performed from the input operation unit 58 as setting of experimental conditions (S102).

After setting the experimental conditions, the high-temperature fluid 22 is introduced into the first pipe body portion 4 (S103), and the temperature of the high-temperature fluid 22 is detected (S104). Regarding this high-temperature fluid 22, the heating unit 18 is driven and the temperature of the high-temperature fluid 22 is controlled (S105), and the temperature is increased to, for example, 200 ° C. as a certain high temperature that satisfies the experimental conditions. This high temperature is maintained and the cooling time point is monitored (S106). It is determined whether the cooling period (S107) has arrived. If the cooling period has come (YES in S107), the low-temperature fluid 30 is introduced into the second pipe body portion 6 from the introduction port 32 (S108), and the liquid of the low-temperature fluid 30 is adjusted. Bit (S109). If the liquid level exceeds the reference liquid level, the low-temperature fluid 30 is discharged from the discharge port 34 to adjust the liquid level to meet the experimental conditions.

In this way, in the experimental state of introduction of the high-temperature fluid 22, its temperature control, and introduction of the low-temperature fluid 30, each detection of the heating fluid temperature, the cooling fluid temperature, the flange temperature, the bolt temperature, and the axial force is received from the experimental device 2. Information (S110), and an experiment information file is generated, and the detection information is saved as the experiment information (S111). As already mentioned, each experimental information is stored in relation to the detection position, the identification information of the detection component, and the detection time point information.
The processing unit 54 generates presentation information indicating the transition of the detection information from the experimental information (S112). In response to this presentation information, the information presentation section 60 displays the detection information in an image (S113).
Then, evaluation information is generated from the experimental results (S114). This review information can also be displayed as image or text information.

> Effects of the second embodiment>
According to this second embodiment, the following effects can be obtained.
(1) The test information obtained in the experimental device 2 can be received at a predetermined time point, and the high-temperature fluid temperature 76, low-temperature fluid temperature 78, flange temperature 80-1, 80-2, and bolt temperature can be obtained with each detection information. 82 and the detected axial force 84 are stored in the storage unit 56 in time for storage, and can be taken out appropriately.
(2) From these detection information, it is possible to generate presentation information indicating the detection temperature, the detection axial force, and the residual rate (Example 1), and it is possible to display a graph showing the passage of time on the display screen of the information presentation unit 60.
(3) With this image display, it is possible to verify and confirm the change in the surface pressure of the gasket caused by the temperature difference of the fluid or the temperature difference in which the fluid leaks.
[Example 1]

> Experimental Device 2>
FIG. 4 shows the experimental device 2 of the first embodiment. In FIG. 4, the same parts as those in FIG. 1 are assigned the same reference numerals.
In the first embodiment, heating oil HOL is used as an example for the high-temperature fluid 22, and cold water LW is used as an example for the low-temperature fluid 30.
The apparatus body 10 includes a heating-side header 94, a cooling-side header 96, and a fastening portion 8. The heating-side header 94 is an example of the first tube body portion 4, and the cooling-side header 96 is an example of the second tube body portion 6. The heating-side header 94 is filled with heating oil HOL, and the heating section 18 for heating this heating oil HOL is controlled by a temperature control device 98. As for the heating part 18, for example, a sheath heater is used. The heating-side header 94 includes an expansion tube 92, and the expanded heating oil HOL is retracted to the expansion tube 92.

A cold water tank 100 is provided to supply cold water LW to the cooling-side header 96. The cold water LW is tap water W, and the tap water W is replenished to the cold water tank 100 through a water supply pipe 102. The water supply pipe 102 has a ball valve 103, which can adjust the water supply amount of the tap water W to the cold water tank 100, and control the water level of the cold water LW to a certain degree.
The cold water LW of the cold water tank 100 is an introduction port 32 which is introduced into the cooling-side header 96 through the cold water supply pipe 104. The cold water supply pipe 104 includes a cold water circulation pump 106, and the cold water LW is circulated toward the cooling-side header 96 by the cold water circulation pump 106. The cold water circulation pump 106 can control the start and stop by the liquid level detected by the liquid level detection unit 28 (FIG. 1). Therefore, the cold water circulation pump 106 and the liquid level detection unit 28 are examples of an adjustment unit for the amount of cold water LW supplied to the cooling-side header 96. A bypass pipe 110 is provided between the cold water supply pipe 104 and the discharge pipe 108 so that a part of the cold water LW can flow to the discharge pipe 108 side. The cold water supply pipe 104 is connected to the bypass pipe 114 through the safety valve 112, and a part of the cold water LW is returned to the cold water tank 100.

Drain pipes 116 are connected to the discharge ports 34-1 and 34-2 of the cooling-side header 96, and the cold water LW discharged from the discharge ports 34-1 and 34-2 can flow to the discharge pipe 108 and be introduced into the drain pit 118. The cooling-side header 96 includes a steam exhaust port 120, and the steam exhaust port 120 is connected to a steam exhaust pipe 124 through a safety valve 122. The steam S discharged from the steam discharge pipe 124 is introduced into the drainage pit 118.
The fastening portion 8 is provided with a protective cover 126, and the dew formed in the protective cover 126 is introduced into the discharge pipe 108 through the discharge pipe 128.
When the cold water LW of the cold water tank 100 has exceeded the reference water level, the cold water LW is drained to the drain pipe 108 through the overflow drain pipe 130.

The cold water tank 100 is provided with a temperature sensor 132-1, the drain pipe 116 is provided with temperature sensors 132-2, 132-3, and the cold water supply pipe 104 is provided with a temperature sensor 132-4 to detect the temperature. The temperature sensors 132-2 and 132-3 may be, for example, thermocouples. The cold water supply pipe 104 is provided with a pressure gauge 134 and can detect the pressure of the cold water LW.
Regarding this experimental device 2, the assembly of the experimental device 2 is shown in FIG. In FIG. 5, the same parts as those in FIG. 4 are denoted by the same reference numerals, and descriptions thereof are omitted.
The experimental device 2 includes a housing 136, and the housing 136 is installed on a floor of a laboratory or the like. The device body 10 is maintained at a constant height, for example, by a pillar portion 138 standing on the upper surface of the casing 136 at a certain height.

> Device body 10>
FIG. 6 shows the apparatus body 10 taken out from the experimental apparatus 2 shown in FIG. 5. In FIG. 6, the same parts as those in FIGS. 1 and 4 are denoted by the same reference numerals, and descriptions thereof are omitted.
The heating-side header 94 is provided with a flange 140 on the rear end side, and the flange 140 is fixed to the plugging plate 16 by a plurality of bolts 142 and nuts 144.
Similarly, the cooling-side header 96 is also provided with a flange 146 on the rear end side, and the flange 146 is fixed to the blocking plate 26 by a plurality of bolts 142 and nuts 144.

> Bolt 40>
FIG. 7 shows an example of a bolt 40 used in the fastening portion 8. In FIG. 7, the same parts as those in FIG. 1 are assigned the same reference numerals.
A strain gauge 150 is provided on the shaft portion 148. The strain gauge 150 is an example of the axial force detecting section 46. The lead portion 152 of the strain gauge 150 is pulled out from the top of the head 154.
The head 154 is provided with a thermocouple 156. This thermocouple 156 is an example of the temperature detecting section 20-5.

> Experimental System 50>
FIG. 8 shows an experimental system 50 of Example 1 using the experimental device 2 (FIG. 5). The experimental system 50 includes the experimental device 2 mentioned above, a data logger 158, a PC (Personal Computer) 160, and a screen 162.
The data recorder 158 is an example of the information collection unit 52, the PC 160 is an example of the processing unit 54 and the storage unit 56, and the screen 162 is an example of the information presentation unit 60. These configurations may be provided on the table 163 adjacent to the experimental device 2.
FIG. 9 shows the hardware of the experimental system 50. The PC 160 includes a processor 164, an input-output unit 166, and a storage unit 56.

The storage unit 56 includes storage elements such as a ROM (Read-Only Memory) and a RAM (Random-Access Memory). An OS (Operating System), an experimental program, various file information, and the like can be stored in the storage unit 56. Here, the storage section 56 can store the heating oil temperature information file 168, the cold water temperature information file 170, the flange temperature information files 172-1, 172-2, and the material of each gasket 38 used in the fastening portion 8. Bolt temperature information file 174, axial force information file 176, and so on. The screen 162 can use the touch panel 180 as an input operation mechanism on the display screen.

> Hot oil temperature information file 168>
FIG. 10A shows a heating oil temperature information file 168. In this heating oil temperature information file 168, a relationship is established with the identification information to save the temperature information of the heating oil HOL (high temperature fluid temperature 76). The heating oil temperature information file 168 is an aggregate of files 168-1, 168-2, 168-3,... Created for each device body 10 or each gasket 38 of the fastening portion 8.
The heating oil temperature information file 168 includes an identification information section 182, a name section 184, a material section 186, a time section 188, and a temperature section 190. The identification information section 182 stores identification information such as an ID (Identification) for identifying the heating oil HOL. The name section 184 stores a name for specifying the heating oil HOL. The material part 186 can store the material of the heating oil HOL. The time section 188 stores time information such as the date and time of the experiment and the measurement time. The temperature unit 190 stores measured values and the like of the temperature specified by the date and time.

> Cold Water Temperature Information File 170>
FIG. 10B shows a cold water temperature information file 170. In the cold water temperature information file 170, the temperature information (cooling fluid temperature 78) of the cold water LW is stored in association with the identification information. The cold water temperature information file 170 is a collection of files 170-1, 170-2, 170-3,... Made for each device body 10 or the gasket 38 of each fastening portion 8.
The cold water temperature information file 170 includes an identification information section 192, a name section 194, a material section 196, a time section 198, and a temperature section 200. The identification information section 192 stores identification information such as an ID for identifying the cold water LW. The name section 194 stores a name for specifying the cold water LW. The material of the cold water LW can be stored in the material portion 196. The time section 198 stores time information such as the date and time of the experiment and the measurement time in the same manner as the already-mentioned time section 188. In the temperature section 200, similar to the already-mentioned temperature section 190, measured values and the like specified by the date and time are stored.

> Flange Temperature Information File 172-1>
FIG. 10C shows the flange temperature information file 172-1. The flange temperature information file 172-1 establishes a relationship with the identification information to store the temperature information of the flange 14-1 (the flange temperature 80-1). This flange information file 172-1 is a collection of files 172-11, 172-12, 172-13, ... created for each device body 10 or each gasket 38 of the fastening portion 8.
The flange temperature information file 172-1 includes an identification information section 202, a position section 204, a time section 206, and a temperature section 208. The identification information section 202 stores identification information such as an ID identifying the flange 14-1. Position information such as the position of a bolt is stored in the position unit 204. The time section 206 stores time information such as the date and time of the experiment and the measurement time in the same manner as the already-mentioned time section 188. In the temperature section 208, measured values and the like specified by the date and time are stored in the same manner as the temperature section 190 already mentioned.

> Flange Temperature Information File 172-2>
FIG. 10D shows a flange temperature information file 172-2. In this flange temperature information file 172-2, each temperature information of the flange 14-2 (flange temperature 80-2) is stored in a relationship with the identification information. This flange information file 172-2 is an aggregate of files 172-21, 172-22, 172-23, ... created for each device body 10 or each gasket 38 of the fastening portion 8.
This flange temperature information file 172-2 has the identification information part 202, the position part 204, the time part 206, and the temperature part 208 similarly to the flange temperature information file 172-1. The identification information section 202 stores identification information such as an ID identifying the flange 14-2. Position information such as the position of a bolt is stored in the position unit 204. The time section 206 stores time information such as the date and time of the experiment and the measurement time in the same manner as the already-mentioned time section 188. In the temperature section 208, measured values and the like specified by the date and time are stored in the same manner as the time section 190 already mentioned.

> Bolt Temperature Information File 174>
FIG. 11A shows a bolt temperature information file 174. In this bolt temperature information file 174, the temperature information (bolt temperature 82) of each bolt 40 is stored in association with the identification information. The bolt temperature information file 174 is an aggregate of files 174-1, 174-2, 174-3,... Created for each device body 10 or the gasket 38 of each fastening portion 8.
The bolt temperature information file 174 includes an identification information unit 210, a position unit 212, a time unit 214, an initial temperature unit 216, and a temperature unit 218. In the identification information unit 210, as in the identification temperature unit 190, measured values and the like of the temperature specified by the date and time are stored for each bolt 40.

> Axial Force Information File 176>
FIG. 11B shows an axial force information file 176. The axial force information file 176 stores the axial force information (detected axial force 84) of each bolt 40 in a relationship with the identification information. This axial force information file 176 is a collection of files 176-1, 176-2, 176-3,... Created for each device body 10 or each gasket 38 of the fastening portion 8.
This axial force information file 176 includes an identification information unit 210, a position unit 212, a time unit 214, an initial axial force unit 220, an axial force unit 222, and a residual rate unit 224 similarly to the bolt temperature information file 174. Since the identification information unit 210, the position unit 212, and the time unit 214 are the same as the bolt temperature information file 174, descriptions thereof are omitted.
The initial axial force portion 220 stores the initial axial force immediately after the locking. The axial force unit 222 stores the detected axial force corresponding to the measured value of the temperature, which is related to the identification information and time. The residual rate unit 224 stores a residual rate calculated from the detected axial force.

> Order of Experiments>
The sequence of the experiment in Example 1 is as follows. The sequence of this experiment is performed along the sequence of the experiment shown in FIG. This sequence includes the setting of initialization and experimental conditions, introduction of heating oil HOL, temperature detection and temperature control of heating oil HOL, monitoring of cooling time points, introduction of cold water LW, adjustment of water level of cold water LW, and reception of detection information , Production of experimental information files, generation of prompt information, image display, etc.
1) Initialization and setting of experimental conditions After the initialization of the experimental program is executed, the experimental conditions are set for this experimental device 2. The experimental conditions include the setting temperature of the heating oil HOL, the cold water LW, and the models or materials of the gaskets 38-1 and 38-2.
2) Introduction of heating oil HOL At the beginning of the experiment, the heating oil HOL was first introduced into the heating-side header 94, and the heating oil HOL was heated by the heating unit 18.

3) Temperature detection and temperature control of the heating oil HOL The temperature of the heating oil HOL is detected by the temperature detection unit 20-1, and the heating oil HOL is heated to a set temperature, for example, 200 ° C. by the temperature control device 98.
4) Monitoring of the cooling time point The cooling time point is monitored by waiting for the elapse of a predetermined time from the time point when the heating oil HOL has risen to the set temperature.
5) Introduction of cold water LW If the cooling start time has come, the cold water LW can be introduced from the cold water tank 100 into the cooling-side header 96.

6) Water level adjustment of cold water LW As long as the blocking plate 26 is a transparent member, the water level of the cold water LW of the cooling-side header 96 can be confirmed from the outside. Therefore, it is possible to adjust to a desired water level by supplying and draining the cold water LW of the cooling-side header 96.
7) In addition to detecting the temperature of heating oil HOL and cold water LW, it also detects the temperature of flanges 14-1, 14-2, bolts 40, etc., and the axial force of bolts 40, and receives these inspection information to the data Recorder 158. The PC 160 receives the detection information from the data recorder 158.
8) The heating oil temperature information file 168, cold water temperature information file 170, flange temperature information file 172-1, 172-2, bolt temperature information file 174, and axial force information file 176 are produced in PC160, which is based on the detection information and Establish a relationship between the detection components to create a heating oil temperature information file 168, a cold water temperature information file 170, and establish a relationship with the detection position to create a flange temperature information file 172-1, 172-2, a bolt temperature information file 174, and an axial force information file. 176.

9) Prompt information generation In PC160, the prompt information is generated from the heating oil temperature information file 168, the flange temperature information files 172-1, 172-2, the bolt temperature information file 174, and the axial force information file 176.
10) The image is displayed on the PC160, and the flange temperature information, bolt temperature information, and axial force information are displayed on the screen 162 by the image display.

> Change of heating oil temperature and flange temperature>
FIG. 12A shows the temporal change of the flange temperature before and after the cooling start point.
When the cold water LW is supplied to the cooling-side header 96, the cooling oil changes the heating oil temperature and the flange temperature. In this example, the temperature of the heating oil drops only slightly, and the temperature of the flange 14-1 on the heating side and the temperature of the flange 14-1 on the heating side change with respect to the temperature of the flange 14-1 on the heating side. The temperature on the upper side of the

> Bolt position>
FIG. 12B shows the positions of the bolts 40 for tightening the flanges 14-1 and 14-2. In this example, eight bolts 40 are represented by branch numbers 40-1, 40-2, ..., 40-8. In this case, the bolts 40-1 and 40-2 are positioned on the upper side, and the bolts 40-4 and 40-5 are positioned on the lower side.

> Changes in bolt temperature>
FIG. 13A shows the temperature change of each bolt 40 before and after the cooling start point. The position of each bolt 40 is as described in FIG. 12B. The temperature of each bolt 40 is significantly affected by the start of cooling by the cold water LW. This effect is that the bolts 40-4 and 40-5 on the lower side are more significant than the bolts 40-1 and 40-2 on the upper side.

> Change of Axial Force>
FIG. 13B shows the change in the axial force residual rate of each bolt 40 before and after the cooling start point. The position of each bolt 40 is as described in FIG. 12B. The axial force of each bolt 40 is significantly affected by the start of cooling by the cold water LW, and this effect is that the lower bolts 40-4 and 40-5 are more significant than the upper bolts 40-1 and 40-2.
If you look at this change, it can be seen that the increase and decrease of the axial force will have an elastic interaction due to temperature. In this example, it has been confirmed that, compared with a gasket surface pressure of 35 MPa, which is an example, the gasket surface pressure at the cooling start point may drop to 27 MPa instantly.

> Relationship between changes in axial force and temperature changes>
FIG. 14A shows the time change of the axial force residual rate after cooling from heating.
In FIG. 14A, A1 shows the axial force during heating, and A2 shows the transitional change of the axial force immediately after the start of cooling.
In FIG. 14B, A1 shows a heating state corresponding to A1 of FIG. 14A, and A2 shows a temperature transition from heating to cooling immediately after cooling corresponding to A2 of FIG. 14.
In FIG. 14B, ｢(H)｣ indicates a high-temperature state, and ｢(L)｣ indicates a low-temperature state, and a subsequent state from a high temperature to a low temperature is displayed by such a temperature distribution.

> Axial force change example 1>
FIG. 15 shows the change of the axial force residual rate in the case of the experiment mentioned above, in the case where the spiral graphite gasket with an expanded graphite filler is used as the other gasket.
FIG. 16 shows the change in the axial force residual rate in the case where the PTFE (polytetrafluoroethylene) gasket is used as the other gasket for the experiment mentioned above.
In this way, if the material or composition of the gasket 38 is different, the experimental device 2 and the experimental system 50 can be used to confirm that a significant change in axial force occurs in the bolt 40 due to a temperature change.

> Effect of Embodiment 1>
According to the first embodiment, the following effects can be obtained.
(1) Similar to the first and second embodiments, the temperature, axial force, and residual ratio that have been established in relation to each part and the detection time point can be obtained, and can be clearly displayed by a graph.
(2) Such experimental results can be obtained for each gasket, and it is possible to verify changes in the surface pressure of the gasket caused by the gasket, and to learn.
[Example 2]

> Experimental Device 2>
FIG. 17 shows the experimental device 2 of the second embodiment. In this experimental device 2, the valves 228-1 and 228-2 are inserted into the piping system 226 in the same manner as the actual machine, and the fastening portions 8-1, 8-2, 8-3, and 8- of the piping system 226 are inserted. The configuration of 4 is the same as that of the experimental device 2 already mentioned. The valve bodies 36-1, 36-2 of the respective valves 228-1, 228-2 correspond to the partition plate 36 already mentioned.
Even with the experimental device 2 like this, the already mentioned experiments can be performed like actual machines.
[Example 3]

> Experimental System 50>
FIG. 18 shows an experimental system 50 of the third embodiment. In this experimental system 50, the same parts as those in FIG. 2 are assigned the same reference numerals.
The control unit 230 of the third embodiment has the functions of the information collection unit 52 and the processing unit 54 already mentioned. The control unit 230 includes processes such as a heating fluid heating process, a cooling fluid supply process, and a liquid level adjustment process in addition to the processes described in the second embodiment.

e) High temperature fluid heat treatment 232
This high-temperature fluid heating process 232 performs drive control of the heating unit 18 so that the temperature of the high-temperature fluid 22 is adapted to the experimental conditions.
f) Cryogenic fluid supply treatment 234
In this low-temperature fluid supply process 234, the low-temperature fluid 30 is supplied to the second pipe body portion 6 at a predetermined amount or a predetermined flow rate in accordance with the supply timing of the low-temperature fluid 30, so that it is suitable for the experimental conditions.
g) Level adjustment processing 236
In this liquid level adjustment process 236, the cooling fluid supply process 234 is supplemented, and the liquid level of the low temperature fluid 30 is adapted to the experimental conditions by supplying and discharging the low temperature fluid 30.

> Effect of Embodiment 3>
According to this third embodiment, the following effects can be obtained.
(1) In the experimental system 50 of Example 3, the heating control unit 62 (FIG. 2) and the temperature control device 98 (FIG. 4) can be incorporated into the control unit 230 to simplify the configuration.
(2) The processing order of experiments can be managed centrally, and experiments, verifications, and studies can be performed efficiently, so that the working conditions on the site can be reproduced, which can help improve the skills of sealing construction.

[Other embodiments]
The embodiment of the present invention includes the following changes.
(1) The pipe diameter of the apparatus body 10 of the experimental apparatus 2 may be set in accordance with the size of the simulated site.
(2) For the performance confirmation of the gasket, the already mentioned experimental device 2 and experimental system 50 may be used.
(3) The experimental device 2 may be provided with a moving mechanism such as a caster in the casing 136, and may be configured to change the configuration of the experimental place.
(4) The experimental system 50 may be provided with a communication unit and configured to present the experimental results to the information terminal by using a communication line such as the Internet.
(5) In the examples, although a heating fluid such as heating oil is exemplified as a high-temperature fluid, and cold water is exemplified as a low-temperature fluid, these are only examples, as long as a temperature difference or a temperature gradient occurs between a measurement member or an experimental member. That is, it can be any temperature and fluid.
(6) For the establishment of the relationship between various information such as detection information and processing information, although the address of the detection department can be used, specific location, time, and GPS (Global Positioning System) information can also be used. And other information is used in relationship building information.
(7) As for the receiving time of the information such as detection information, as long as it is received continuously, regularly or irregularly, it is only necessary to establish a relationship between the receiving information at this receiving time to save and execute the processing.
Industrial availability

According to the present invention, it is possible to reproduce a pipe provided with a valve and the like of an actual machine, and perform experiments and verifications on the thermal influence of the fastening portion, and present the experimental data with an image or the like. Improve skills.

2‧‧‧ Experimental device

4‧‧‧ first tube body

6‧‧‧Second tube body

8, 8-1, 8-2, 8-3, 8-4‧‧‧

10‧‧‧device body

12, 24‧‧‧ tube body

14-1, 14-2, 140, 146‧‧‧ flange joints (flange)

16, 26‧‧‧ jam plate

18‧‧‧ heating section

20-1, 20-2, 20-3, 20-4, 20-5‧‧‧ Temperature detection department

22‧‧‧high temperature fluid

28‧‧‧Liquid level detection department

30‧‧‧Cryogenic fluid

32‧‧‧ import port

34, 34-1, 34-2 ‧‧‧ discharge port

36‧‧‧Division

36-1, 36-2‧‧‧ valve body

38, 38-1, 38-2‧‧‧ Gaskets

40, 40-1, 40-2, 40-3, 40-4, 40-5, 40-6, 40-7, 40-8, 142‧‧‧ bolts

42, 144‧‧‧ Nuts

44‧‧‧ opening

46‧‧‧Axial force detection section

50‧‧‧ experimental system

52‧‧‧Information Collection Department

54‧‧‧Treatment Department

56‧‧‧Storage Department

58‧‧‧Input operation section

60‧‧‧Information Information Department

62‧‧‧Heating Control Department

64‧‧‧Cryogenic fluid supply department

66‧‧‧Cryogenic fluid adjustment department

68‧‧‧Information receiving and processing

Generated at 70‧‧‧ time

72‧‧‧Read / Read Process

74‧‧‧Information Handling

76‧‧‧ high temperature fluid temperature

78‧‧‧ Low temperature fluid temperature

80-1, 80-2‧‧‧ flange temperature

82‧‧‧ Bolt temperature

84‧‧‧Axial force detection

92‧‧‧Expansion tube

94‧‧‧Heating side header

96‧‧‧ cooling side header

98‧‧‧Temperature control device

100‧‧‧ cold water tank

102‧‧‧ Water supply pipe

103‧‧‧ Ball Valve

104‧‧‧cold water supply pipe

106‧‧‧Cold water circulation pump

108‧‧‧ discharge pipe

110, 114‧‧‧ Bypass

112, 122‧‧‧ Safety Valve

116‧‧‧Drain pipe

118‧‧‧ drainage pit

120‧‧‧Steam exhaust port

124‧‧‧Steam exhaust pipe

126‧‧‧Protective cover

128‧‧‧ discharge pipe

130‧‧‧ Overflow drainage pipe

132-1, 132-2, 132-3, 132-4‧‧‧ temperature sensors

134‧‧‧Pressure gauge

136‧‧‧Cage

138‧‧‧ pillar

148‧‧‧Shaft

150‧‧‧ strain gauge

152‧‧‧Leader

154‧‧‧Head

156‧‧‧Thermocouple

158‧‧‧Data Logger

160‧‧‧PC (personal computer)

162‧‧‧Screen

163‧‧‧Workbench

164‧‧‧Processor

166‧‧‧I / O Department

168, 168-1, 168-2, 168-3‧‧‧ Heating oil temperature information file

170, 170-1, 170-2, 170-3‧‧‧‧ Cold water temperature information file

172, 172-1, 172-2, 172-11, 172-12, 172-13, 172-21, 172-22, 172-23‧‧‧ flange temperature information file

174, 174-1, 174-2, 174-3‧‧‧bolt temperature information file

176、176-1、176-2、176-3‧‧‧‧Axial Force Information File

180‧‧‧Touch Panel

182, 192, 202, 210‧‧‧Identification Information Department

184, 194, ‧‧‧Name Department

186, 196‧‧‧‧ Department of Materials

188, 198, 206, 214‧‧‧ Time

190, 200, 208, 218‧‧‧‧Temperature Department

204, 212‧‧‧Position

216‧‧‧Initial temperature section

220‧‧‧Initial Axial Force

222‧‧‧Axial Force

224‧‧‧Residual rate department

228-1, 228-2‧‧‧ valve

226‧‧‧Piping system

230‧‧‧Control Department

232‧‧‧High temperature fluid heat treatment

234‧‧‧Cryogenic fluid supply treatment

236‧‧‧Liquid level adjustment

HOL‧‧‧Heat oil

LW‧‧‧ cold water

W‧‧‧ tap water

S101 ~ S114‧‧‧step

FIG. 1A is a diagram showing an experimental apparatus of the first embodiment, and B is a diagram showing a cross section of the apparatus body.

Fig. 2 is a diagram showing an experimental system according to a second embodiment.

FIG. 3 is a flowchart showing an experiment sequence.

FIG. 4 is a diagram showing an experimental apparatus of Example 1. FIG.

FIG. 5 is a diagram showing the assembly of the experimental device.

FIG. 6 is a perspective view showing the apparatus body taken out from the experimental apparatus of FIG. 5. FIG.

FIG. 7 is a diagram showing an example of a bolt.

FIG. 8 is a diagram showing an experimental system of Example 1. FIG.

FIG. 9 is a diagram showing the hardware of the experimental system of Example 1. FIG.

FIG. 10A is a view showing a heating oil temperature information file, B is a view showing a cold water temperature information file, and C and D are views showing a flange temperature information file.

FIG. 11A is a diagram showing a bolt temperature information file, and B is a diagram showing an axial force information file.

FIG. 12A is a diagram showing a change in flange temperature, and B is a diagram showing a bolt position.

FIG. 13A is a graph showing a change in bolt temperature, and B is a graph showing a change in an axial force residual rate.

FIG. 14A is a graph showing a change in the axial force residual rate, and B is a graph showing a temperature change during heating and immediately after cooling.

FIG. 15 is a graph showing a change in the axial force residual ratio when another gasket is used.

FIG. 16 is a graph showing changes in the axial force residual ratio when other gaskets are used.

FIG. 17 is a diagram showing an experimental apparatus of Example 2. FIG.

FIG. 18 is a diagram showing an experimental system of Example 3. FIG.

Claims (12)

An experimental device is characterized by: have: The first tube body part introduces high temperature fluid; The second tube body part introduces a cryogenic fluid; and The fastening part is provided with a partition plate for separating the first pipe body part from the second pipe body part, and fastens the first pipe body part and the second pipe body part, A temperature gradient is generated in the fastening portion due to a temperature difference between the high temperature fluid in the first pipe body portion and the low temperature fluid in the second pipe body portion. The experimental device of claim 1, wherein the aforementioned fastening portion includes: Gaskets are respectively disposed between the zone partition and the first pipe body portion, and between the zone partition and the second pipe body portion; and A plurality of bolts fasten the flange joints of the first pipe body portion and the second pipe body portion. The experimental device according to claim 1, wherein the first pipe body portion further includes a heating portion that heats the high-temperature fluid, and a temperature detection unit that detects a temperature of the high-temperature fluid. The experimental device according to claim 2, wherein the bolt further includes an axial force detection section that detects axial force, and a temperature detection section that detects temperature. If the experimental device of item 1 is provided, it further has: A first port portion for introducing a low-temperature fluid into the aforementioned second pipe body portion; A second port portion that discharges the cryogenic fluid from the second pipe body portion; and The low-temperature fluid supply section is connected to the first port section and supplies a low-temperature fluid. If the experimental device of item 1 is provided, it has: A housing portion for the first pipe body portion and the second pipe body portion to be provided; A tank that accumulates the aforementioned cryogenic fluid; and A pump supplies the low-temperature fluid to the second pipe body portion. An experimental system is characterized by: Experimental device such as any one of claims 1 to 6; The temperature detecting unit detects the temperature of one or more of the flange of the first pipe body portion, the flange of the second pipe body portion, the high temperature fluid, and the low temperature fluid; Axial force detection section detects the axial force of each bolt; The processing unit receives the detected temperature from the temperature detection unit, and information about the movement of the detected axial force from the axial force detection unit, and establishes a relationship with time information, a detected position, or a detection member, and from the detected temperature and the detected axis Force information generation tips; and The information prompting section prompts the aforementioned prompting information with an image. The experimental system as claimed in claim 7, further comprising a liquid level detecting section for detecting the liquid level of the low-temperature fluid in the second pipe body section, and providing a detection liquid level detected by the liquid level detecting section to the foregoing. The processing unit, and prompts in the aforementioned information prompting unit. If the experimental system of item 7 is provided, it has: A flow rate adjusting unit that adjusts a supply amount of the low-temperature fluid supplied to the second pipe body portion; and The liquid level adjusting unit adjusts a liquid level of the low-temperature fluid in the second pipe body portion. A program for implementing by a computer, and the foregoing program is for implementing the following functions by the foregoing computer: The function of heating the high temperature fluid that has been introduced into the first pipe body portion; A function of setting the introduction time point of the low-temperature fluid to the second pipe body portion; The detection temperature of any one or more of the flange on the first pipe body portion side, the flange on the second pipe body portion side, the high temperature fluid, or the low temperature fluid is between the flanges of the flange joint. The function of receiving the detected axial force of each bolt that is fastened, continuously, periodically or irregularly, and establishing a relationship with the information indicating the detection member or the detection position to receive it; The function of generating the aforementioned information for detecting the temperature or the aforementioned axial force; and The function of establishing a relationship between the aforementioned detection temperature or the aforementioned axial force and the information indicating the detection time point, the detection member, or the detection position, and presenting the information in the information notification section. An experimental method, comprising the following steps: A partition wall is provided to separate the first pipe body portion into which the high-temperature fluid is introduced and the second pipe body portion into which the low-temperature fluid is introduced, and the first pipe body portion and the second pipe body are separated by a fastening portion. Steps of fastening A step of introducing a high-temperature fluid into the first pipe body portion and increasing the temperature thereof; A step of introducing a low-temperature fluid into the second pipe body portion, and generating a temperature gradient in the fastening portion by a temperature difference between the low-temperature fluid and the high-temperature fluid; Detecting the temperature of one or more of the flange of the first pipe body portion, the flange of the second pipe body portion, the high temperature fluid, and the low temperature fluid in the fastening portion, and detecting the temperature Steps to build relationships with component information to receive; and The step of detecting the axial force of each bolt and establishing a relationship between the detected axial force and the position information on the flange joint to receive it. A learning method is characterized by including the following steps: The step of setting the experimental conditions in the experimental device as in any one of claims 1 to 6; A step of introducing a low-temperature fluid into the second pipe body portion while maintaining the high temperature state after the first pipe body portion is heated with a high temperature fluid, and cooling the second pipe body portion side; Detecting the temperature of any one or more of the flange of the first pipe body portion, the flange of the second pipe body portion, the high temperature fluid, and the low temperature fluid of the experimental device, and detecting the temperature and Steps to establish relationship between location or component information to receive; A step of detecting the axial force of each bolt and establishing a relationship between the detected axial force and the detected position information on the flange joint to receive it; Receive the detected temperature from the temperature detection unit, receive the transition information of the detected axial force from the axial force detection unit, and establish a relationship with time information, a detection position, or a detection member, and Steps to generate prompt information; Steps to prompt the aforementioned prompt information with an image; and Steps to evaluate experimental results.