TW201837358A - Seal construction management method, seal construction management device, seal construction management program, and seal construction management system - Google Patents

Abstract

A seal construction management method to tighten by setting a plurality of tightening locations on a flange that sandwiches a gasket and providing a bolt and a nut in tightening each location, wherein the torque to apply to the bolt or the nut depending on the number of circuits around the tightening locations or on the tightening location is calculated or selected, the torque is set in a tightening tool, and the output torque of the tightening tool is stepwise or continuously changed in accordance with the number of circuits or the tightening location. In this manner, the axial force of each bolt can reach the target axial force.

Description

Sealing construction management method, sealing construction management device, sealing construction management program and sealing construction management system

FIELD OF THE INVENTION The present invention relates to a management technique for sealing construction used for flange locking of connecting pipes, valves, pumps, and the like.

BACKGROUND OF THE INVENTION Flange joints are used in piping connections such as piping connections and pumps. A gasket is sandwiched between the flanges of the flange joint, and bolts and nuts arranged at a plurality of positions of the flange are used for locking. A locking tool such as a torque wrench is used for this locking.

Regarding this locking tool, in a tool using an electric motor as a rotary driving source, a current known method is to intermittently apply a current pulse to the motor, and to control the current value in accordance with the detection torque, and to reach the The current pulse is stopped at the target torque (for example, Patent Document 1). Prior Art Literature Patent Literature

Patent Document 1: Japanese Patent Laid-Open No. 2002-1676

SUMMARY OF THE INVENTION Problems to be Solved by the Invention However, in the flange joint locking, a tightening torque is applied to a plurality of bolts and nuts arranged by a locking tool. If a tool capable of torque management is used for this locking, it is only necessary to impart a desired tightening torque to the bolts and nuts, thereby achieving uniform and uniform locking.

However, flanges or shims are diverse, and considerable experience in selecting suitable shims is required. Furthermore, the tightening order of the plurality of bolts arranged on the flange is not uniform, and even if a tightening tool capable of torque management is used, construction management cannot be reduced accordingly. In order to improve the reliability of construction, it is expected that the construction is performed by skilled operators. Therefore, skilled training or experience is required, and the burden on the operators will be excessive. Therefore, the management of sealed construction is still extremely important.

In this kind of sealing construction, in order to avoid uneven locking or crushing, in addition to the selection or combination of locking methods such as diagonal locking and spiral locking, the skills, abilities, or experience of the construction personnel will also affect Construction accuracy, deviation during construction.

Therefore, an object of the present invention is to take into account such problems, to automate the setting of output torque in response to the number of patrols at the lock or the lock, so as to facilitate sealing construction management and improve construction accuracy. . In addition, another object of the present invention is to achieve a problem such as that, by using a locking tool capable of automatically setting an output torque, the sealing construction management can be facilitated and the construction accuracy can be improved. Means to solve the problem

In order to achieve the above object, according to one aspect of the sealing construction management method of the present invention, a plurality of locking points are set on a flange having a gasket interposed therebetween, and bolts and nuts are provided at each locking point for locking. The method of sealing construction management includes the following steps: calculating or selecting a torque value to be assigned to the bolt or the nut in accordance with the number of patrols at the locking place or the locking place; and setting the torque value to the locking A tool; and changing the output torque of the locking tool in stages or continuously in response to the number of tours or the locking point.

The above-mentioned sealing construction management method may further include a step of detecting the number of iterations of the locking tool or the locking place.

The above-mentioned sealing construction management method may further include a step of setting the number of patrols of the locking place or the locking place to the locking tool. The above-mentioned sealing construction management method may further include the following steps: detecting the axial force of the bolt; and using the detected change information of the axial force and the information identifying the bolt to detect the number of iterations of the locking tool or the aforementioned Locked.

In order to achieve the above object, according to one aspect of the sealing construction management device of the present invention, a plurality of locking points are set on a flange having a gasket interposed therebetween, and bolts and nuts are provided at each locking point for locking. The sealed construction management device is provided with a control device that performs the following steps: calculates or selects a torque value to be assigned to the bolt or the nut in accordance with the number of rounds at the lock or the lock. And set the aforementioned torque value to the locking tool, and change the output torque of the aforementioned locking tool in stages or continuously in response to the number of tours or the aforementioned locking place.

The above-mentioned sealed construction management device may further include a detection device that detects the number of patrols of the lock position of the lock tool or the lock position.

The sealing construction management device may further include setting equipment for setting the number of patrols of the locking place or the locking place to the locking tool.

In the above-mentioned sealed construction management device, the aforementioned control equipment may also be provided in the aforementioned locking tool, or separately from the aforementioned locking tool, and connected in a wired or wireless manner. In the above-mentioned sealing construction management device, the detection device may further include an axial force sensor that detects the axial force of the bolt, and uses information on changes in the axial force detected by the axial force sensor and information identifying the bolt, To detect the number of rounds of the lock tool or the lock position.

In order to achieve the above object, according to one aspect of the sealing construction management program of the present invention, the aforementioned computer is used to realize the following function: responding to the tour set at a plurality of locks of a flange having a gasket interposed therebetween To calculate or select the torque value to be assigned to the bolt or nut; set the torque value to the lock tool; and stepwise or continuously according to the number of tours or the lock point Change the output torque of the aforementioned locking tool.

In order to achieve the above object, according to one aspect of the sealing construction management system of the present invention, a plurality of locking points are set on a flange having a gasket interposed therebetween, and bolts and nuts are provided at each locking point for locking The sealed construction management system includes: a locking tool that can control the output torque applied to the bolt or the nut in stages or continuously; and a controller connected to the locking tool by wire or wirelessly , And calculate or select the torque value assigned to the bolt or nut in accordance with the number of rounds of the lock or the lock, and set the torque to the lock tool, and respond to the number of rounds Or the output torque of the lock tool is changed stepwise or continuously by the lock position. Invention effect

According to the present invention, any of the following effects can be obtained. (1) The output torque of bolts or nuts imparted to the flange by the lock tool can be changed in stages or continuously according to the number of rounds or the lock at the lock. Make the axis of each bolt reach the target axial force. (2) The output torque of the bolts or nuts assigned to the flange by the locking tool can be automatically or gradually changed in stages or continuously according to the number of rounds of the lock or the lock. The best value, so it can achieve a high-precision sealed construction without being affected by the skills or intuition of the construction personnel. (3) Since it is possible to set the number of patrols in which the axial force of each bolt at a plurality of locking points reaches the target axial force, it is possible to achieve uniformity or rapidity of the sealing construction. (4) It can reduce the mistakes of the construction personnel and improve the reliability of the sealing construction.

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

Form for Implementing the Invention [First Embodiment] Fig. 1 shows a sealing construction management device according to a first embodiment. The configuration shown in FIG. 1 is only an example, and the present invention is not limited to such a configuration.

This seal construction management device 2-1 is used for locking and management of a plurality of bolts 6 and nuts 8 of the seal construction section 4. The seal construction section 4 is a construction section for connecting pipes, valves, pumps, and the like. The seal construction portion 4 is an example of a locking object. A gasket 12 is interposed between the flanges 10-1 and 10-2, and a bolt 6 and a nut 8 are arranged at a plurality of locking positions. In this example, the locking positions of the flanges 10-1 and 10-2 are set at 8 positions on the periphery, that is, set at intervals of an angle θ = 45 °, and 8 bolts 6 and screws are arranged. Cap 8.

The sealing construction management device 2-1 is provided with a locking tool 14 and a control unit 16-1 thereof. The locking tool 14 may be a tool that generates output torque T to be applied to the bolt 6 or the nut 8 and is a tool that can manage the increase or decrease of the output torque. That is, as the lock tool 14, a general electric tool such as a nutrunner can be used.

With this locking tool 14, as long as the operator holds the handle 18 to maintain the device body 20, the socket 22 is fitted to the nut 8 at the locking place, and the trigger switch 24 is pressed to output the torque T Nut 8 assigned to the lock.

The control unit 16-1 is an example of a control device of the locking tool 14 and is configured by, for example, a computer. The functions of the control unit 16-1 include: a. The function of calculating or selecting the torque value τ assigned to the bolt 6 or the nut 8 according to the number of rounds N or the locking position P of the locking place; b. Set the torque value τ to the function of the locking tool 14; c. The function of changing the output torque T of the locking tool 14 stepwise or continuously in response to the number of rounds N or the locking point P.

In these functions a, b, and c, the locking place is a place where a locking force is imparted between the flanges 10-1, 10-2, and in the example already mentioned, the arrangement of the bolt 6 or the nut 8 position. The number of rounds N of the tightening point P refers to the unit number of the positions P1, P2,... Pn of the bypass bolt 6 and the nut 8.

The torque value τ is a torque set in order to reach the target axial force Fe at the lock position, and is a value that should be assigned to the bolt 6 or the nut 8 in accordance with the number of rounds N or the lock position P at the lock position. This torque value τ is calculated as a level value necessary to reach the target axial force Fe by the locking condition including the washer 12. Instead of calculating the torque value τ, the torque value τ is selected from the database of the torque value τ that has been calculated in advance according to the number of patrols N or P at the lock position.

In b, the torque value τ is control information output by the control unit 16-1 to the locking tool 14, and the torque value τ is set to the locking tool 14 based on the control information.

In c, the output torque T of the lock tool 14 is changed in stages or continuously by the control unit 16-1 in response to the number of rounds N or the lock position P. As a result, the axial force of the bolt 6 or the nut 8 at each locking point is brought to the target axial force Fe.

On the tour of the lock, it can be traversed at positions P1, P2 ... Pn as shown by arrow a in Fig. 2A, or as shown by arrow b in Fig. 2B. 1. Change the locking position in the diameter direction of 10-2 to tour the positions P1, P2 ... Pn. That is, the locking positions can be continuously changed at the positions P1, P2, ..., Pn in the order of numbers, and the locking positions can also be skipped regularly to tour. Therefore, the number of rounds of tour N is not limited to the counted number of rounds continuously performed in order for the positions P1, P2, ..., Pn, and may also be a counted number of rounds that are skipped over a predetermined position.

FIG. 3 shows the steps of the seal construction management using this control unit 16-1. This construction management is an example of a sealing construction management method, and includes the following steps: setting a plurality of locking places on the flanges 10-1, 10-2 with the gasket 12 sandwiched therebetween, and setting bolts 6 at each locking place And nut 8 to lock (S101, S102, S103, S104, S105, S106).

In this seal construction management, during the seal construction (before or during construction), the torque to be given to the bolt 6 or the nut 8 is calculated or selected according to the number of tours N or the lock position P at the lock position. The value τ (S101). The calculated or selected torque value τ is set in the locking tool 14 by the control unit 16-1 (S102).

In the locking construction of the locked place, it can be determined whether there is a change in the number of rounds N of the locked place or the locked place P (S103). If there is a change in the number of patrols N or the lock position P (Yes in S103), the lock tool is changed in stages or continuously according to the number of patrols N or the lock position P in the lock position. An output torque T of 14 (S104). If there is no change in the number of rounds N of the locked position or the locked position P (No in S103), the current output torque T is maintained (S105).

Then, it is determined whether the axial force F of each locking place has reached the target axial force Fe (S106). If the axial force F of each locking place does not reach the target axial force Fe (No in S106), repeat the steps of S103 to S106, and repeat the number of patrols N or the change of the locking place P according to the locking place. The torque value τ is set to change the output torque T.

When the axial force F at each locking point reaches the target axial force Fe (YES in S106), the sealing construction is completed.

The axial force F at each locking position can be detected from each bolt 6 by an axial force sensor, or can be calculated by using the detection value of the torque sensor located on the side of the locking tool 14.

<Effects of the First Embodiment> (1) It is possible to realize highly accurate and reliable sealing construction without restraining the skills or intuition of the construction personnel. (2) The calculation and setting of the torque value τ and the detection of the output torque T can be performed consistently, and the highly reliable sealing construction can be speeded up. (3) It can reduce the sealing errors of construction workers and improve the safety of construction workers.

[Second Embodiment] FIG. 4A shows a sealed construction management system according to a second embodiment. In FIG. 4A, the same parts as those in FIG. 1A are denoted by the same reference numerals. The configuration shown in FIG. 4A is only an example, and the present invention is not limited to such a configuration.

This sealed construction management system 2-2 includes a lock tool 14, a control unit 16-2, and an axial force sensor 26-1, 26-2 ... 26-n. Since the locking tool 14 has the same structure as that already mentioned, its description is omitted.

The control unit 16-2 is an example of a control device of the locking tool 14 and is configured by, for example, a computer. Although the control unit 16-2 controls the locking tool 14 in the same manner as the control unit 16-1 (FIG. 1A), the control unit 16-2 uses the axial force sensors 26-1, 26-2, and 26-n. The point of detecting the axial force is different from that of the control unit 16-1. The axial force sensors 26-1, 26-2, ..., 26-n are examples of an axial force detection device that detects the axial force of each bolt 6 located in the seal construction portion 4. In this example, the axial force sensors 26-1, 26-2, ..., 26-8 are individually provided on the eight bolts 6, and each detected axial force is received to the control unit 16-2. In the control unit 16-2, each of the detected axial forces F is used for comparison information on whether or not the target axial force Fe has been reached, specific information for the locking place, and patrol information for the locking place.

As shown in FIG. 4B, the first, second, and third functions 28, 30, and 32 are implemented in the control unit 16-2. In the function 28, the calculation or selection of the torque value τ given to the bolt 6 or the nut 8 is performed in accordance with the number of rounds N of the lock or the lock P. In the function 30, the torque value τ is set to the lock tool 14. In the function 32, the output torque T of the lock tool 14 is changed or maintained in stages or continuously in response to the number of tours N or the lock position P.

FIG. 5 shows the processing sequence of the sealing construction management of the sealing construction management system 2-2.

During the sealing construction, the initial setting of the locking tool 14 is performed (S201), and the initial setting of the control unit 16-2 is performed (S202). Each axial force sensor 26-1, 26-2 ... 26-n detects the axial force of each bolt 6 (S203), and the control part 16-2 receives each detected axial force (S204). In the control unit 16-2, the number of rounds N of the lock position P or the determination of the lock position P is determined (S205). In this case, each locking point P can be specified by the number of the eight bolts 6 located at eight of the locking points P1 to P8 and the change in the detected axial force. The locking of 6 is taken as a unit, and the number of rounds N is specified by the number of rounds of the same bolt 6 being locked.

The control unit 16-2 calculates the torque value τ to be applied to the bolt 6 or the nut 8 in accordance with the number of rounds N of the lock position P or the lock position P (S206). In this calculation, the torque condition τ0 is calculated with respect to the number of rounds N = 0, the torque value τ1 is calculated with respect to the number of rounds N = 1, and the number of rounds with N = 2 is calculated with reference to the locking conditions of the selected shim 12 and the like Calculate the torque value τ2 ... In this case, the torque value τ corresponding to the number of tours N may be selected from the previously calculated torque values τ0, τ1, τ2,....

This torque value τ is provided by the control unit 16-2 and is set to the lock tool 14 (S207). The locking tool 14 generates an output torque Tτ according to the torque value τ. Thereby, the output torque Tτ is changed or maintained in stages or continuously in response to the number of locked tour times N or the locked position P (S208).

In addition, the construction worker can lock the tool 6 by applying the output torque T to the bolts 6 or nuts 8 at the locking points P1 to P8 (S209). The axial force sensors 26-1, 26-2 ... 26-8 detect the axial force of the bolts 6 at each of the locking points P1 to P8 (S210), and the detected axial force is received to the control unit 16-2 ( S211).

The control unit 16-2 determines whether each detected axial force has reached the target axial force (S212). If each detected axial force F does not reach the target axial force Fe (NO in S212), it returns to S205 and repeats the processing in S205 to S212.

When each detected axial force F reaches the target axial force Fe (YES in S212), the locking is completed (S213), and the locking tool 14 is notified to complete the locking. This locking is only required to be notified by the display device.

<Effects of the second embodiment> (1) Calculation of the torque value τ according to the number of rounds N or P of the lock place, and the number of rounds or the torque value of the lock place can be performed. The setting of τ and the output torque T are continuously or stepwise changed in accordance with the number of rounds of the lock or the lock, so that the axial force F of the bolt 6 quickly reaches the target axial force Fe. (2) Since the axial force F can be detected from each bolt 6 and the output torque T applied from the locking tool 14 to the bolt 6 can be grasped and monitored, reliable sealing construction can be achieved. (3) An appropriate axial force can be obtained as a target axial force in a case where insufficient or excessive axial force is not generated. (4) The tour of the lock can be performed not only in accordance with the order of bolt numbers, but also in various forms in which bolt numbers are skipped. No matter which kind of lock tour is used, appropriate sealing can be performed quickly.

[Third Embodiment] FIG. 6 shows a sealing construction management device according to a third embodiment. In FIG. 6, the same parts as those in FIG. 1A are denoted by the same reference numerals. The configuration shown in FIG. 6 is only an example, and the present invention is not limited to such a configuration.

The sealing construction management device 2-3 includes a locking tool 14, a control unit 16-3, and a locking condition setting unit 34. Since the lock tool 14 has the same configuration as the seal construction management device 2-1, its description is omitted.

The lock condition setting unit 34 is an example of a lock condition, and sets the number of rounds N of the lock position P or the lock position P. In the control unit 16-3, the calculation or selection of the torque value τ and the output of the lock tool 14 are controlled by the number of tour N of the lock place P or the lock place P set by the lock condition setting unit 34. Torque T. In this way, the function of the control unit 16-1 of the first embodiment can also be realized by the control unit 16-3 and the lock condition setting unit 34.

The same effect as that of the above-mentioned embodiment can be obtained even in a configuration in which the number of rounds N of the lock position P or the lock position P is set by the lock condition setting unit 34 as in the third embodiment. [Example]

FIG. 7 shows a sealed construction management system of the embodiment. The configuration shown in FIG. 7 is only an example, and the present invention is not limited to such a configuration. This sealed construction management system 2-4 includes a locking tool 14, a controller 16-4, and a server computer (hereinafter referred to as "server") 16-5. Since the locking tool 14 has the same structure as that already mentioned, its description is omitted.

The controller 16-4 is connected to the locking tool 14 by wired or wireless means, and in this example is connected by a cable 36. The controller 16-4 is constituted by, for example, a computer alone or connected to the server 16-5. Instead of the connection of the cable 36, a Wi-Fi connection or the like may be used as an example of the wireless connection. The front panel section 38 of the controller 16-4 includes a plurality of input operation sections 40 or a display section 42.

This controller 16-4 realizes the following processes or functions through computer processing: a. It is calculated or selected to be assigned to the bolt 6 or the nut 8 according to the number of rounds N or the lock position P of the lock position. Torque value τ; b. Set the torque value τ for the locking tool 14; c. Change the output torque T of the locking tool 14 in stages or continuously according to the number of tours N or the locking position P; d. The server 16-5 obtains the lock management information; e. Obtains the flange information of the flanges 10-1 and 10-2; f. Obtains the gasket information of the gasket 12; g. Compares the gasket information; h. From the lock The locking condition is selected in the tightening condition information and input to the locking tool 14; i. Prompting of the locking result information; j. Prompting of the locking result evaluation information.

The controller 16-4 is connected to the server 16-5 in a wired or wireless manner by using a communication medium 44 indicated by a dotted line. The server 16-5 is a computer that supports or manages the information processing of the controller 16-4, and only needs to use, for example, a personal computer. The server 16-5 includes a processing unit 46, an input operation unit 48, and a screen 50 as an example.

<Locking Tool 14> FIG. 8A shows an example of the hardware of the locking tool 14. The locking tool 14 includes a control unit 52, a motor 54, and a torque sensor 56 similarly to a general power tool.

The control unit 52 includes a computer and a motor driving unit, and the controller 16-4 can provide control information such as a torque value τ. The motor 54 is driven in response to locking information such as a torque value τ and the like, and can supply a driving current to the motor 54 when the trigger switch 24 is turned on.

The rotation of the motor 54 can be transmitted to the socket 22 mounted on the rotation shaft 58, and the output torque T can be applied to the nut 8 fitted in the socket 22. The rotation shaft 58 may be provided with a gear mechanism, and the rotation force of the motor 54 may be transmitted to the socket 22 with a desired gear ratio.

The torque sensor 56 detects the output torque T from the motor 54 or the rotation shaft 58, and the detected torque is received to the control unit 52. This torque sensor 56 only needs to detect the tightening torque of the bolt 6 and the nut 8, and may be provided outside the locking tool 14.

An example of the bolt 6 provided with the axial force sensor 26 is shown in FIG. 8B. As long as an axial force sensor 26 is provided on each bolt 6 and the axial force F applied to each bolt 6 is detected, the value of the output torque T of the locking tool 14 and its increase or decrease can be measured. As the axial force sensor 26, for example, a strain sensor may be used.

<Controller 16-4> FIG. 9A shows an example of the controller 16-4. The controller 16-4 is a control device of the locking tool 14 and is an example of a sealing construction management device that is sealed and locked.

This controller 16-4 is configured by, for example, a computer, and includes a processor 60, a storage section 62, an input / output section (I / O) 64, an input operation section 40, a communication section 68, and a display section 42.

The processor 60 is an example of a processing device and performs information processing such as an OS or a sealed construction management program located in the storage unit 62. This information processing includes the following control: obtaining the locking condition information from the server 16-5, inputting the locking condition including the torque value τ of the locking tool 14, and outputting the torque T from the locking tool 14. Acquisition, monitoring and evaluation of locking status, display of evaluation results, and output of locking result information.

The storage unit 62 is used for storage of an OS, a sealed construction management program, locking condition information, detection information, and the like, and includes a ROM and a RAM. The storage unit 62 only needs to use a storage element that can hold the stored content.

The I / O 64 is controlled by the processor 60 and is used to control the input and output of information. In this I / O 64, for example, a bar code reader 72 or a removable external memory 74 can be connected as an external device. The barcode reader 72 is an example of an information acquisition unit. The external memory 74 is a memory for taking out log information, as long as it uses a USB (Universal Serial Bus) memory.

The input operation unit 40 includes a key switch, a touch sensor, and the like, and can be used for an input opportunity for inputting information, an opportunity for taking out output information, and mode switching.

The communication section 68 is controlled by the processor 60 and can be used for wireless connection or Internet connection with external devices such as the server 16-5.

The display unit 42 is an example of a presentation device that is controlled by the processor 60 and that inputs or outputs information. The display unit 42 includes, for example, status information display devices such as a green lamp 76-1, a red lamp 76-2, and the like. Turn on the green light 76-1 when normal, and turn on the red light 76-2 when abnormal.

An example of the content stored in the storage unit 62 is shown in FIG. 9B. The storage unit 62 includes a temporary storage area 78-1 and a storage area 78-2. In the temporary storage area 78-1, flange information 80, shim information 82, operator information 84, and locking result information 86 obtained from the locking tool 14 are temporarily stored.

A database of a lock condition table 88, a torque value table 90-1, 90-2, etc. is constructed in the storage area 78-2. The locking condition table 88 records the locking condition information that establishes a relationship with the flanges 10-1 and 10-2. The torque value tables 90-1 and 90-2 store torque value information such as the number of tours N of different tour patterns or the torque value τ.

<Server 16-5> FIG. 10 shows an example of the server 16-5. The server 16-5 is a supporting device of the controller 16-4, and is an example of a prompting device for recording information.

In the server 16-5, the processing section 46 is provided with a processor 92, a storage section 94, an input / output section (I / O) 96, and a communication section 98, and the input operation section 48 and the screen have been mentioned. 50.

The processor 92 performs information processing such as an OS, a sealed construction management program, and the like located in the storage unit 94. The information processing includes the following processing: provision of locking condition information to the controller 16-4, fetching of information indicating the locking result from the controller 16-4, prompting of the locking result information, and the like.

The storage unit 94 is used for storage of an OS, a sealed construction management program, locking condition information, record information, and the like, and includes a ROM and a RAM. In the storage unit 94, a storage device such as a hard disk or a semiconductor memory that can hold the stored content may be used.

The I / O 96 is controlled by the processor 92 and is used for inputting and outputting control information. The communication unit 98 is used to connect the controller 16-4 and the like by wireless, for example. An external device such as an external memory 100 is connected to the I / O 96. The communication unit 98 is controlled by the processor 92 and is used for wireless connection or Internet connection with external devices such as the lock tool 14 and the controller 16-4. The input operation unit 48 is an input for inputting information, an opportunity for taking out output information, mode switching, and the like. The screen 50 is an example of an information presentation section and a display section, and is used to display, for example, the lock condition table 88 and the torque value tables 90-1 and 90-2. The screen display portion of the screen 50 may be provided with a touch panel 102 instead of the input operation portion 48 to perform input information corresponding to the display information.

<Locking Condition Table 88> An example of the locking condition table 88 is shown in FIG. 11. The locking condition table 88 stores locking condition information, and is provided by the server 16-5 to the controller 16-4. As an example of the locking condition information, the locking condition table 88 may include application information, flange information 80, gasket information 82, and locking result information 86. Where applicable, information is implementation information. The flange information 80 is individual information for identifying the flanges 10-1 and 10-2. The shim information 82 is individual information used for identification of the shim 12. The locking conditions include link information with the torque value tables 90-1 and 90-2. The torque value tables 90-1 and 90-2 store the torque value τ and the number of tours N as the torque value information. .

As shown in FIG. 11, the locking condition table 88 includes a line information section 104, a flange information section 106, a gasket information section 108, a bolt information section 110, and a locking condition information section 112.

The online information section 104 can store, for example, the identification information of the locking points of the pipeline A, the pipeline B, etc. The flange information section 106 can store flange numbers, flange sizes, and the like for identifying the flanges 10-1 and 10-2. The shim information section 108 may store a shim number and a size of the shim for identifying the shim 12. The bolt information section 110 can store the number of bolts and the like. The lock condition information section 112 may store a lock condition number and the like for identifying the lock condition.

Since the locking condition table 88 is provided from the server 16-5 as the locking condition information, the controller 16-4 can grasp the necessary locking condition information about the server 16-5 and the locking , And can use this locking condition information independently.

<Torque Value Tables 90-1 and 90-2> The torque value table 90-1 shown in FIG. 12 corresponds to the patrolling pattern shown in FIG. 2A. In this torque value table 90-1, the tour number N (= 0, 2 ... n) of the locking place P and the torque value τ (= τ01, τ02 ...) of the locking place P (= P1, P2 ... Pn) can be stored. τnn). These torque values τ are calculated and stored in response to the flanges 10-1, 10-2, and the spacers 12, which are the objects to be locked, and in accordance with the number of rounds N (= 0, 2 ... n). Each value can be calculated at the time of sealing construction, or the value calculated in advance can be saved, and this value is selected.

The torque value table 90-2 shown in FIG. 13 corresponds to the sealing construction in the case where the roving form shown in FIG. 2B is brought forward. In the torque value table 90-2, when the number of touring rounds N of the lock position P is less than 1 (N <1), the lock position P (= P1) specified by the angle θ of the lock position P , P2 ... Pn) torque values τ (= τ01, τ02 ... τnn). Regarding the torque value after the locked round (N = 1), the same torque value τ as the torque value table 90-1 shown in FIG. 12 can be determined according to the number of rounds N (= 2 ... n). Calculate and save. Each value can be calculated at the time of sealing construction, or the value calculated in advance can be saved and the method of selecting this value is the same as that of the torque value table 90-1.

<Processing Sequence of Sealed Construction Management> FIG. 14 shows a processing sequence of construction management performed by the sealed construction management system 2-42. During the sealing construction, the initial setting of the locking tool 14 is performed (S301), and the initial setting of the controller 16-4 is performed (S302). After this initial setting, the controller 16-4 is connected to the server 16-5, and the locking condition information provided by the server 16-5 is received to the controller 16-4 (S303). Reception of the locking condition information is achieved by obtaining the locking condition table 88 and the torque value tables 90-1 and 90-2.

The controller 16-4 having obtained the locking condition information selects the locking conditions corresponding to the flanges 10-1, 10-2, and the gasket 12 selected in advance (S304). In the selection of this locking condition, if the torque value τ is calculated in advance, a process of selecting this value may be included. In this way, the controller 16-4 is connected to each of the axis force sensors 26-1, 26-2 ... 26-n after the preparation for locking, and each of the axis force sensors 26-1, 26- 2 ... 26-n detects the axial force of each bolt 6 (S305), and the controller 16-4 receives each detected axial force (S306).

The controller 16-4 uses each detected axial force to determine the number of rounds N of the locking position P or the locking position P (S307). That is, as already mentioned, for example, from the locking place P = 8, the number of the eight bolts 6 and the change in the axial force can be used to specify which one of the locking places P1 to P8 , And the number of rounds N is to set the number of rounds in units of locking of a plurality of bolts 6 selected from the locking points P1 to P8 to 1, and the number of rounds N can be specified from N = 0 to n.

The controller 16-4 calculates the torque value τ to be applied to the bolt 6 or the nut 8 in accordance with the number of rounds N of the locking place P or the locking place P (S308). In this calculation, reference is made to the locking conditions of the selected shim 12, and the torque values τ01, τ02, ... are calculated with respect to the number of tours N = 0, and the torque values τ11, τ12, ... are calculated with respect to the number of tours N = 1. The number of tours N = 2 calculates the torque values τ21, τ22, etc. In this case, a torque value τ corresponding to the number of tours N may be selected from the previously calculated torque values τ0, τ01, τ02, τnn.

This torque value τ is provided by the controller 16-4 and is set in the locking tool 14 (S309). The locking tool 14 generates an output torque T according to the torque value τ. Accordingly, the output torque T is changed or maintained in stages or continuously in accordance with the number of rounds N of the lock position P or the lock position P (S310).

In addition, the construction worker can lock the bolt 6 or the nut 8 to which the output torque T is to be locked by the locking tool 14 (S311). Each of the axial force sensors 26-1, 26-2 ... 26-n detects the axial force of the bolt 6 at each locking point P (S312), and each detected axial force F is received to the controller 16-4 (S313).

The controller 16-4 determines whether each detected axial force F has reached the target axial force Fe (S314). If each detected axial force F does not reach the target axial force Fe (NO in S314), the process returns to S307, and the processes in S307 to S313 are repeated.

When each detected axial force F reaches the target axial force Fe (YES in S314), the locking is completed (S315), and the locking is completed by inputting it to the locking tool 14. This locking can be completed by using a display device, such as the screen 50, for prompting.

In this embodiment, after the locking is completed, the locking result information of the controller 16-4 is received from the locking tool 14 (S316), and the locking result information is provided from the controller 16-4 to Server 16-5. After receiving this information, the lock result information is displayed on the server 16-5 (S317). In this display, you can also include construction personnel information or locked evaluation information.

This processing sequence may include the following processing. a) It is also possible to provide a flange label with flange information marked on the flanges 10-1 and 10-2 with a barcode, and use the barcode reader 72 to obtain flange information from the flange label, or from a barcode The shim label indicated on the shim 12 obtains the shim information, and refers to this information in the locking condition information. b) It is also possible to judge whether the obtained flange information or gasket information is consistent with the locking information, and display whether it is appropriate or not. c) The identification information or skill information of the construction personnel can also be obtained from the ID card owned by the construction personnel, and the construction personnel information is reflected in the locking result information.

<Seal Construction Using Lock Management> Fig. 15 shows the transition of the detected axial force by the lock management, which has already been mentioned. In A, B, and C of FIG. 15, the coordinate axis y is radially taken out from the center O corresponding to the locking point P (= P1 to P8), and the axial force is taken out from the center O on the coordinate axis. F is the detected axial force, and Fe is the target axial force. In this example, the case where the target axial force Fe is reached when the number of tours N = 3 is shown.

In the case where the number of tours N of the locking point N = 1 and the axial force F is set to 30 (%) of the target axial force Fe (F = 0.3Fe), as shown in FIG. 15A, as an example And the detected axial force F of the locked position P (= P1 ~ P8). Even if the same axial force is set, the change in the detected axial force F is still affected by the elastic interaction of the flanges 10-1 and 10-2, and the polygon formed by each detected axial force F will Produces a slight skew.

In the case where the number of patrols of the locking place P is N = 2, and the axial force F is set to 70 (%) of the target axial force Fe (F = 0.7Fe), as shown in FIG. 15B, each lock Each detected axial force F at the tight P (= P1 ~ P8).

In the case where the number of tours N of the locking point N = 3, and the axial force F is set to 100 (%) of the target axial force Fe (F = Fe), as shown in FIG. 15C, each locking Each detected axial force F at P (= P1 ~ P8) can reach the target axial force Fe.

<Effects of the embodiment> (1) Since suitable locking conditions are automatically selected from the locking condition information, it is not necessary to force the operator to manage the locking conditions, but it is possible to reduce the burden on the workers by setting the locking conditions. . Automation can be avoided by avoiding the operator's experience or intuitive setting of locking conditions, and it can prevent cumbersome operations caused by written instructions, or input errors or locking errors caused by written instructions. (2) Since this locking condition can be provided individually and specifically from the server 16-5 to the controller 16-4, it is possible to avoid the general operation of locking all bolts with the same torque, and to achieve fine Locking result. It is possible to perform high-precision torque management provided by the locking condition information, and it is possible to reliably and efficiently perform locking by different torques τ for each bolt to be locked. It can realize sealed construction management with higher precision than the individuality or intuitive management of the operator. (3) Locking tools that can be used for lock management and information processing using a computer can be used to realize automation, high precision, simplification, and efficiency of sealing construction. Experience or intuition for reliable seal construction.

[Other Embodiments] (1) In the above embodiment, the following configuration may be adopted: each of the axial force sensors 26-1, 26-2, ..., 26-n that detects the axial force of the bolt 6 may be used. The axial force is detected to increase or decrease the torque value τ. The axial force of the bolt 6 is the axial force of the bolt 6 that is given the output torque T by the locking tool 14. That is, the sealing construction management method may be a construction management method including the steps of detecting the axial force of the bolt 6 to which the output torque T is imparted by the locked tool 14 and using the detected axial force to make the The torque value τ or the output torque T increases or decreases. (2) Although the controller 16-4 and the server 16-5 are described as separate devices in the above embodiments and examples, the controller 16-4 may be provided with the server 16-5 Functions. That is, the controller 16-4 and the server 16-5 may be configured integrally. (3) Controller 16-4 can also use handheld terminals such as smart phones. (4) Although the above embodiments and examples show examples of setting the controller 16-4 and the server 16-5 for one locking tool 14, it is also possible to set a plurality of locking tools 14 The controller 16-4 and the server 16-5 are set, and a single server 16-5 may be provided in the plurality of controllers 16-4.

As described above, the preferred embodiments and examples of the present invention have been described. The invention is not limited to the invention described above. Those having ordinary knowledge in the technical field to which the present invention pertains may make various modifications or changes in accordance with the gist of the invention described in the scope of the patent application or the form or embodiment for implementing the invention. Such modifications or changes are naturally included in the scope of the present invention. Industrial availability

According to the sealing construction management method, the sealing construction management device, the sealing construction management program, and the sealing construction management system of the present invention, it is possible to use a locking tool that can perform lock management and use information processing by a computer to realize the sealing construction. Automation, high precision, simplification, and high efficiency are beneficial, and it is possible to perform a sealed construction with high reliability without depending on the experience or intuition of the operator.

2-1, 2-3‧‧‧sealed construction management device

2-2, 2-4‧‧‧sealed construction management system

4‧‧‧Sealing Construction Department

6‧‧‧ Bolt

8‧‧‧nut

10-1, 10-2‧‧‧ flange

12‧‧‧ Gasket

14‧‧‧Locking tools

16-1, 16-2, 16-3, 52‧‧‧ Control Department

16-4‧‧‧Controller

16-5‧‧‧Server

18‧‧‧ Grip

20‧‧‧device body

22‧‧‧ Set

24‧‧‧Trigger switch

26、26-1 ~ 26-n‧‧‧Axis Force Sensor

28‧‧‧The first function

30‧‧‧ 2nd function

32‧‧‧The third function

34‧‧‧Locking condition setting section

36‧‧‧cable

38‧‧‧Front panel section

40, 48‧‧‧ input operation section

42‧‧‧Display

44‧‧‧ Communication media

46‧‧‧Treatment Department

50‧‧‧screen

54‧‧‧Motor

56‧‧‧Torque sensor

58‧‧‧rotation axis

60, 92‧‧‧ processors

62, 94‧‧‧Storage Department

64, 96‧‧‧ Input / output section (I / O)

68, 98‧‧‧ Ministry of Communications

72‧‧‧Barcode Reader

74, 100‧‧‧ external memory

76-1‧‧‧Green Lighting

76-2‧‧‧Red light

78-1‧‧‧Temporary storage area

78-2‧‧‧Storage area

80‧‧‧ flange information

82‧‧‧Gasket Information

84‧‧‧Operator Information

86‧‧‧Locking result information

88‧‧‧Locking conditions table

90-1, 90-2‧‧‧‧Torque value table

102‧‧‧Touch Panel

104‧‧‧line information department

106‧‧‧Flange Information Department

108‧‧‧Gasket Information Department

110‧‧‧Bolt Information Department

112‧‧‧Locking Conditions Information Department

a, b‧‧‧ arrows

F‧‧‧Axial force

Fe‧‧‧ Target Axial Force

S101 ~ S106, S201 ~ S213, S301 ~ S317‧‧‧steps

T‧‧‧Output torque

τ‧‧‧Torque value

P1 ~ P8‧‧‧Locking position (position of bolt and nut)

X, Y, Z‧‧‧ directions

FIG. 1 is a diagram showing a sealed construction management apparatus according to a first embodiment. FIG. 2 is a diagram showing a tour pattern at a locking position. Fig. 3 is a flowchart showing the sequence of steps in the management of a sealed construction. FIG. 4A is a diagram showing a sealed construction management system according to a second embodiment, and B is a diagram showing functions of a control unit. FIG. 5 is a diagram showing a sequence of sealing construction management. Fig. 6 is a diagram showing a sealed construction management device according to a third embodiment. FIG. 7 is a diagram showing a sealed construction management system of the embodiment. FIG. 8A is a diagram showing an example of a locking tool, and B is a diagram showing an example of an axial force sensor. FIG. 9A is a diagram showing the hardware of the controller, and B is a diagram showing the storage section. FIG. 10 is a diagram showing a server. FIG. 11 is a diagram showing a locking condition table. FIG. 12 is a diagram showing a torque value table. FIG. 13 is a diagram showing a modification of the torque value table. FIG. 14 is a diagram showing a processing sequence of a sealed construction management system. FIG. 15 is a diagram showing a transition of the detected axial force using the lock management.

Claims (11)

A sealing construction management method. The sealing construction is to set a plurality of locking points on a flange that has been sandwiched with a gasket, and set bolts and nuts at each locking point to lock. The sealing construction management method includes the following steps. : Calculate or select the torque value assigned to the bolt or nut in accordance with the number of rounds of the lock or the lock; set the torque to the lock tool; and The lock position changes the output torque of the lock tool in stages or continuously. For example, the method for sealing construction management according to claim 1, further comprising the step of detecting the number of rounds of the locking tool or the locking point. For example, the sealing construction management method according to claim 1, further comprising the step of setting the aforementioned number of tours of the aforementioned locking place or the aforementioned locking place to the aforementioned locking tool. The sealing construction management method according to claim 2, comprising the steps of: detecting the axial force of the bolt; and using the detected change in the axial force and the information identifying the bolt to detect the number of iterations of the locking tool or The aforementioned locking place. A sealing construction management device. The sealing construction is to set a plurality of locking points on a flange that has been sandwiched with a gasket, and set bolts and nuts at each locking point to lock. The sealing construction management device is provided with control equipment. The control device performs the following steps: Calculates or selects the torque value assigned to the bolt or nut in accordance with the number of rounds at the aforementioned locking place or the aforementioned locking place, and sets the aforementioned torque value to the locking tool The output torque of the locking tool is changed in stages or continuously according to the number of tours or the locking place. For example, the sealed construction management device of claim 5 is provided with a detection device that detects the number of patrols of the lock position of the lock tool or the lock position. For example, the sealed construction management device of claim 5 is provided with a setting device that sets the number of patrols of the locking place or the locking place to the locking tool. The sealed construction management device according to any one of claims 5 to 7, wherein the aforementioned control device is provided in the aforementioned locking tool or separately from the aforementioned locking tool and connected in a wired or wireless manner. The sealing construction management device according to claim 6, wherein the detection device is provided with an axial force sensor that detects the axial force of the bolt, and uses the change information of the axial force detected by the axial force sensor and identifies the bolt. Information to detect the number of rounds of the lock tool or the lock position. A sealing construction management program is used to execute on a computer. The sealing construction management program is used to realize the following functions by the aforementioned computer: Corresponding to a plurality of locking places set on a flange with a gasket interposed therebetween To calculate or select the torque value to be assigned to the bolt or nut; set the torque value to the locking tool; and in stages according to the number of tours or the lock position, or The output torque of the locking tool is continuously changed. A sealing construction management system. The sealing construction is to set a plurality of locking points on a flange that has been sandwiched with a gasket, and set bolts and nuts at each locking point to lock. The sealing construction management system includes: a lock The tightening tool can control the output torque applied to the bolt or the nut in stages or continuously; and the controller is connected to the locking tool by wire or wirelessly and responds to the number of rounds of the locking place Or calculate the selected torque value assigned to the bolt or nut, and set the torque value to the locking tool, and stepwise or continuously according to the number of tours or the lock point The output torque of the aforementioned locking tool is changed as desired.