JP2017138235A - Identifying system, vibration generating device, and identifying method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an identifying system that can identify in a readily operable way an object pipeline or member from another pipeline or member out of multiple pipelines or members.SOLUTION: An identifying system is equipped with a gas supplying device having a gas temperature adjuster and supplying gas adjusted to a different temperature from the temperature of space to a specific pipeline or pipelines out of multiple pipelines arranged in the space, a pipeline temperature data acquiring unit that acquires pipeline temperature data indicating the temperature of each of the multiple pipelines including the specific pipeline or pipelines, and an output controller that outputs the pipeline temperature data acquired by the pipeline temperature data acquiring unit.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an identification system, a vibration generator, and an identification method.

  In the decommissioning process of a nuclear power plant, the dismantling work of a nuclear reactor and the dismantling work of incidental facilities like piping are implemented. The incidental facilities are gradually dismantled while ensuring the function and safety of the nuclear power plant. For example, when a plurality of pipes exist, a situation occurs in which a certain pipe is disassembled and other pipes are not disassembled during a certain period of the decommissioning process. That is, in the decommissioning process, there are pipes that should be dismantled and pipes that should not be dismantled.

  Generally, a nuclear power plant has a plurality of indoor spaces partitioned by walls. The piping is disposed over the plurality of indoor spaces. An operator who enters the indoor space and performs the dismantling work of the pipes needs to identify the pipes that should be dismantled and the pipes that should not be dismantled. For example, the worker identifies a pipe that should be disassembled and a pipe that should not be disassembled while referring to a system diagram or a piping diagram of the nuclear power plant.

  The number of piping in nuclear power plants is enormous. For this reason, an operation for an operator to identify a pipe while referring to a system diagram or a piping diagram is a difficult operation with a great deal of labor, resulting in a long working time.

  For example, even if a pipe to be disassembled is specified in a certain indoor space, it is difficult for an operator to specify the pipe based on vision or the like in another indoor space. Therefore, even if a pipe to be disassembled is specified in a certain indoor space, in another indoor space, an operator needs to perform an operation of identifying the pipe again with reference to the system diagram or the piping diagram.

  In addition, an operation in which an operator identifies piping while referring to a system diagram or a piping diagram is likely to cause a human error. For example, piping that should not be disassembled may be dismantled due to a human error.

  Patent Document 1 discloses a technique for checking the instrumentation piping path by flowing warm water through the instrumentation piping.

JP 05-006278 A

  In the case of a method for identifying a pipe by flowing hot water through the pipe, there is a possibility that the hot water may contain a radioactive substance or a chemical substance, so that it is necessary to carry out a purification process and a monitoring process of the used hot water. Since costs are generated in the purification process and the monitoring process, the cost of decommissioning work is increased. Further, in the case of a method of identifying a pipe by flowing hot water through the pipe, the pipe disassembly work needs to be performed after removing the hot water from the pipe. In addition, when the hot water leaks, there is a possibility that an operation for collecting the leaked hot water may occur or an operator may be burned. Moreover, when the sealing member with low heat resistance is provided in piping, it is difficult to flow warm water through the piping.

  An aspect of the present invention is to provide an identification system, a vibration generator, and an identification method capable of identifying a target pipe or member and another pipe or member from among a plurality of pipes or members with good workability. To do.

  1st aspect of this invention has a gas temperature regulator, The gas supply apparatus which supplies the gas adjusted to the temperature different from the temperature of the said space to specific piping among several piping arrange | positioned in space A pipe temperature data acquisition unit that acquires pipe temperature data indicating the temperature of each of the plurality of pipes including the specific pipe, and an output control unit that outputs the pipe temperature data acquired by the pipe temperature data acquisition unit, An identification system is provided.

  In the first aspect of the present invention, the gas supply device includes a housing in which the gas temperature regulator is disposed, a fan that takes gas in the space into the housing, and a gas temperature regulator that is incorporated in the housing. It is preferable to include a nozzle having a supply port for supplying the gas in the space whose temperature is adjusted to the specific pipe.

  In the first aspect of the present invention, the space includes a plurality of indoor spaces partitioned by a nuclear power plant, and the plurality of pipes including the specific pipe may be arranged over the plurality of indoor spaces, respectively. Good.

  1st aspect of this invention WHEREIN: The space temperature data acquisition part which acquires the space temperature data which shows the temperature of the said indoor space is provided, The said gas supply apparatus is the said space temperature data acquired by the said space temperature data acquisition part. It is preferable to adjust the temperature of the gas supplied to the specific pipe based on the above.

  1st aspect of this invention WHEREIN: The said gas supply apparatus is arrange | positioned in the 2nd indoor space from the 1st part of the said specific piping arrange | positioned in the 1st indoor space among several said indoor spaces. The gas is supplied to the specific pipe so that the gas flows to the second part of the pipe, the space temperature data acquisition unit acquires the space temperature data of the second indoor space, and the gas temperature regulator is It is preferable to adjust the temperature of the gas supplied to the specific pipe so that the temperature of the gas supplied to the specific pipe is different from the temperature of the second indoor space.

  1st aspect of this invention WHEREIN: The said piping temperature data detects the infrared rays from the said piping via the said optical system which has a visual field area where the said several piping containing the said specific piping is arrange | positioned, and the said optical system. Preferably, the pipe temperature data acquisition unit acquires the pipe temperature data from the pipe temperature detection device.

  1st aspect of this invention WHEREIN: The fluid data acquisition part which acquires the fluid data which distribute | circulated the said specific piping is provided, The said gas temperature regulator is based on the said fluid data acquired by the said fluid data acquisition part. It is preferable that the temperature of the gas supplied to the specific pipe is adjusted to one of a temperature higher and lower than the temperature of the space.

  According to a second aspect of the present invention, a refrigerant adjusted to a temperature lower than the temperature of the indoor space is provided to the specific pipe so that the surface of the specific pipe among the plurality of pipes arranged in the indoor space is condensed. An identification system including a refrigerant supply device for supplying is provided.

  In the second aspect of the present invention, an evaluation member whose appearance is changed by being wet is disposed on the surface of each of the plurality of pipes including the specific pipe, and a visual field region in which the plurality of pipes including the specific pipe are disposed. A pipe image data acquisition unit for acquiring image data of the pipe by acquiring image data of the pipe by an imaging device having an optical system having an imaging device that acquires an optical image of the pipe via the optical system; And an output control unit that outputs the image data acquired by the piping image data acquisition unit.

  In the second aspect of the present invention, the indoor space includes a plurality of compartment spaces partitioned by a nuclear power plant, and the plurality of pipes including the specific pipe are respectively disposed over the plurality of indoor spaces. Also good.

  A third aspect of the present invention includes a plurality of vibration generators arranged at intervals to a specific member among a plurality of members arranged in a space, and the vibration generator includes a vibration generator, a counter, and a counter. And a control unit that controls the vibration generator, wherein the counter of the first vibration generator operates in synchronization with the counter of another vibration generator, and the first vibration generator The control unit of the first vibration generating device of the first vibration generating device based on the count value of the counter of the first vibration generating device so as not to overlap with the operation period of the vibration generator of another vibration generating device. An identification system is provided for controlling the vibration generator.

  A fourth aspect of the present invention includes a plurality of vibration generators arranged at intervals to a specific member among a plurality of members arranged in a space, and the vibration generator includes a vibration generator, a vibration The vibration detector of the first vibration generator includes: a detector; a control unit that controls the vibration generator; and a determination unit that determines whether a detection value of the vibration detector is equal to or greater than a threshold value. Detects vibrations generated by a vibration generator of another vibration generator, and when the determination unit determines that the detected value is not greater than or equal to a threshold value, the control unit of the first vibration generator An identification system is provided for operating the vibration generator of the first vibration generator.

  In the third or fourth aspect of the present invention, the space includes a plurality of indoor spaces partitioned by a nuclear power plant, and the plurality of members including the specific member are respectively disposed over the plurality of indoor spaces. May be.

  According to a fifth aspect of the present invention, there is provided a vibration generator disposed on a specific member among a plurality of members disposed in space, a counter, a control unit for controlling the vibration generator, and disposed on the specific member. A storage unit that stores vibration condition data of the external vibration generator that is configured, and the control unit, based on the count value of the counter and the vibration condition data stored in the storage unit, A vibration generator for controlling the vibration generator so as not to overlap with an operation period of an external vibration generator is provided.

  According to a sixth aspect of the present invention, a vibration generator disposed on a specific member among a plurality of members disposed in space and a vibration generated by an external vibration generator disposed on the specific member are detected. A vibration detector that controls the vibration generator, and a determination unit that determines whether or not the detection value of the vibration detector is equal to or greater than a threshold value. In the determination unit, the detection value is a threshold value. When it determines with it not being above, the said control part provides the vibration generator which operates the said vibration generator.

  In the fifth or sixth aspect of the present invention, the space includes a plurality of indoor spaces partitioned by a nuclear power plant, and the plurality of members including the specific member are respectively disposed over the plurality of indoor spaces. May be.

  According to a seventh aspect of the present invention, a gas adjusted to a temperature different from the temperature of the space is supplied to the specific pipe among the plurality of pipes arranged in the space, and the plurality of the pipes including the specific pipe There is provided an identification method including obtaining pipe temperature data indicating the temperature of each pipe and identifying the specific pipe and another pipe based on the pipe temperature data.

  According to an eighth aspect of the present invention, a refrigerant adjusted to a temperature lower than the temperature of the indoor space is provided in the specific pipe so that the surface of the specific pipe among the plurality of pipes arranged in the indoor space is condensed. An identification method including supplying and identifying the specific pipe and another pipe based on the surface of the specific pipe that has condensed is provided.

  According to a ninth aspect of the present invention, a plurality of vibration generators are arranged at intervals between specific members among a plurality of members arranged in the space, and each of the plurality of vibration generators is provided. Operating the vibration generators of the plurality of vibration generators based on the count values of the counters provided in the plurality of vibration generators so that the operation periods of the vibration generators are not overlapped. And an identification method including:

  According to a tenth aspect of the present invention, a plurality of vibration generators are arranged with a space between specific members among a plurality of members arranged in a space, and a first vibration among the plurality of vibration generators. Detecting a vibration generated by a vibration generator of another vibration generating device with a vibration detector of the generating device, determining whether a detection value of the vibration detector is equal to or greater than a threshold, and When it is determined that the value is not equal to or greater than the threshold value, an identification method is provided that includes operating a vibration generator of the first vibration generation device.

  According to an eleventh aspect of the present invention, a mark is given to a specific member among a plurality of members arranged in a space based on design data of a piping system, and the specific member and others are based on the mark. An identification method comprising: identifying a member of

  11th aspect of this invention WHEREIN: It is preferable that the said mark is a mark which shows that the said specific member is a member disassembled.

  11th aspect of this invention WHEREIN: It is preferable that the said mark contains the data which show the dismantling time of the said specific member.

  ADVANTAGE OF THE INVENTION According to the aspect of this invention, the identification system, vibration generator, and identification method which can identify object piping or member and other piping or member from several piping or members with sufficient workability | operativity are provided.

FIG. 1 is a schematic configuration diagram illustrating an example of a nuclear power plant according to the first embodiment. FIG. 2 is a diagram schematically illustrating an example of the piping system and the identification system according to the first embodiment. FIG. 3 is a diagram schematically illustrating an example of the gas supply device according to the first embodiment. FIG. 4 is a diagram schematically illustrating an example of a pipe temperature detection device according to the first embodiment. FIG. 5 is a functional block diagram illustrating an example of an identification system according to the first embodiment. FIG. 6 is a functional block diagram illustrating an example of an identification system according to the first embodiment. FIG. 7 is a flowchart schematically showing an example of the identification method according to the first embodiment. FIG. 8 is a flowchart schematically showing an example of the identification method according to the second embodiment. FIG. 9 is a functional block diagram illustrating an example of an identification system according to the third embodiment. FIG. 10 is a diagram schematically illustrating an example of an identification system according to the fourth embodiment. FIG. 11 is a diagram illustrating an example of an identification system according to the fifth embodiment. FIG. 12 is a flowchart illustrating an example of an identification method according to the fifth embodiment. FIG. 13 is a diagram schematically illustrating an example of an identification system according to the sixth embodiment. FIG. 14 is a diagram schematically illustrating an example of a vibration generator according to the sixth embodiment. FIG. 15 is a flowchart illustrating an example of an identification method according to the sixth embodiment. FIG. 16 is a timing chart showing an operation period of the vibration generator according to the sixth embodiment. FIG. 17 is a diagram schematically illustrating an example of an identification system according to the seventh embodiment. FIG. 18 is a diagram schematically illustrating an example of a vibration generating device according to the seventh embodiment. FIG. 19 is a flowchart illustrating an example of an identification method according to the seventh embodiment. FIG. 20 is a schematic diagram for explaining an identification method according to the eighth embodiment.

  Hereinafter, embodiments according to the present invention will be described with reference to the drawings, but the present invention is not limited thereto. The requirements of the embodiments described below can be combined as appropriate. Some components may not be used.

<First Embodiment>
FIG. 1 is a schematic configuration diagram illustrating an example of a nuclear power plant 100 according to the present embodiment. The nuclear power plant 100 includes a nuclear reactor 1. In the present embodiment, the nuclear reactor 1 is a pressurized water reactor (PWR), and the nuclear power plant 100 is a nuclear power plant that generates power using nuclear power.

  The nuclear power plant 100 includes a nuclear reactor system 101 including a nuclear reactor 1 and a turbine system 102 including a steam turbine 5 and a generator 6. In the reactor system 101, primary cooling water circulates. In the turbine system 102, secondary cooling water circulates. The reactor system 101 and the turbine system 102 are separated by the steam generator 7.

  The nuclear reactor system 101 includes a primary containment vessel 2, a nuclear reactor pressure vessel 3 stored in the nuclear reactor containment vessel 2, and thermal energy contained in the nuclear reactor pressure vessel 3 and generated by a nuclear reaction. A core 4 to be heated, a pipe 8 connected to each of the reactor pressure vessel 3 and the steam generator 7, and a high-temperature primary cooling water heated in the reactor pressure vessel 3, and a primary cooling connected to the pipe 8. A pressurizer 9 for pressurizing water, a pipe 10 connected to each of the reactor pressure vessel 3 and the steam generator 7, and a low-temperature primary cooling water heat-exchanged by the steam generator 7, and a pipe 10 are arranged. A primary cooling water pump 11 for supplying the primary cooling water to the reactor pressure vessel 3.

  The turbine system 102 is connected to each of the steam generator 7 and the steam turbine 5, the pipe 12 through which the high-temperature and high-pressure steam generated by the steam generator 7 flows, and the steam turbine 5 operated by the steam from the steam generator 7. A generator 6 that is operated by the steam turbine 5, a condenser 13 that cools the steam that has worked in the steam turbine 5 and returns it to water, and a condenser 13 and a steam generator 7, respectively. A pipe 14 through which the secondary cooling water from the vessel 13 flows, a secondary cooling water pump 15 that sends the secondary cooling water to the steam generator 7, and a moisture separation heater 17 are provided.

  When the primary cooling water is pressurized by the pressurizer 9, the boiling point of the primary cooling water rises. The high-temperature and high-pressure primary cooling water heated in the reactor pressure vessel 3 and pressurized by the pressurizer 9 is supplied to the steam generator 7 via the pipe 8. The steam generator 7 performs heat exchange between the primary cooling water and the secondary cooling water. By the heat exchange between the primary cooling water and the secondary cooling water, steam of the secondary cooling water is generated in the steam generator 7. The steam of the secondary cooling water generated by the steam generator 7 is supplied to the steam turbine 5 through the pipe 12 provided with the isolation valve 16.

  The steam turbine 5 includes a high-pressure turbine 5 </ b> A and a low-pressure turbine 5 </ b> B, and is driven by the steam from the steam generator 7. The moisture separator / heater 17 is connected to the high-pressure turbine 5A via the reheat pipe 18A, and is connected to the low-pressure turbine 5B via the reheat pipe 18B. The high pressure turbine 5 </ b> A is driven by the steam supplied from the steam generator 7 through the pipe 12. The steam that has worked in the high-pressure turbine 5A is supplied to the moisture separation heater 17 through the reheat pipe 18A. Further, at least a part of the steam from the steam generator 7 is supplied to the moisture separation heater 17 via the branch pipe 19. The low-pressure turbine 5B is operated by steam supplied from the moisture separator / heater 17 via the reheat pipe 18B.

  The generator 6 is connected to the steam turbine 5. The generator 6 is driven by the steam turbine 5 to generate power. The condenser 13 cools the steam worked by the steam turbine 5 and returns it to water. A water intake pipe 20 for taking in seawater and a drain pipe 21 for discharging seawater are connected to the condenser 13. Seawater is supplied to the condenser 13 through the intake pipe 20 by the operation of the circulating water pump 20P.

  The pipe 12 and the condenser 13 are connected via a bypass pipe 22 provided with a bypass valve 22B. A condensate pump 23, a ground condenser 24, a condensate demineralizer 25, a condensate booster pump 26, and a low-pressure feed water heater 27 are disposed in the pipe 14. A deaerator 28 is connected to the pipe 14. Further, the pipe 14 is provided with a high-pressure feed water heater 29 and a feed water control valve 30.

  FIG. 2 is a diagram schematically illustrating an example of the piping system PS and the identification system 40A of the nuclear power plant 100 according to the present embodiment. As shown in FIG. 2, the building of the nuclear power plant 100 has a plurality of indoor spaces A, B, C, D, E, F, and G partitioned by walls W. In the nuclear power plant 100, from the viewpoint of radiation protection, for example, walls W are provided at intervals of 1 [m] to 10 [m]. The building of the nuclear power plant 100 is provided with a plurality of indoor spaces by walls W. The indoor spaces A, B, C, D, E, F, and G are schematically shown indoor spaces, and a large number of indoor spaces are actually provided.

  The piping system PS has a plurality of pipings Pa, Pb, Pc, and Pd. The plurality of pipes Pa, Pb, Pc, Pd are arranged in the indoor space of the nuclear power plant 100. The pipes Pa, Pb, Pc, and Pd are pipes schematically shown, and a large number of pipes are actually provided. The plurality of pipes Pa, Pb, Pc, and Pd are disposed over the plurality of indoor spaces A, B, C, D, E, F, and G, respectively. The pipes Pa, Pb, Pc, and Pd are arranged so as to penetrate the wall W.

  In the decommissioning process of the nuclear power plant 100, the dismantling work of the piping system PS is performed. In a certain period of the decommissioning process, a situation occurs in which one of a plurality of pipes is dismantled and other pipes are not dismantled. That is, in the decommissioning process, there are pipes that should be dismantled and pipes that should not be dismantled. In the present embodiment, as an example, the pipe Pc is disassembled and the pipes Pa, Pb, and Pd are not disassembled.

  In dismantling work of the piping system PS, it is necessary to identify the piping Pc and the piping Pa, Pb, Pd. In the present embodiment, the identification system 40A identifies the piping Pc that should be disassembled and the piping Pa, Pb, and Pd that should not be disassembled. In the following description, the pipe Pc to be disassembled among the plurality of pipes Pa, Pb, Pc, Pd arranged in the indoor space is appropriately referred to as a specific pipe Pc.

  As shown in FIG. 2, the identification system 40A includes a gas supply device 50 that supplies a gas whose temperature is adjusted to a specific pipe Pc, and pipe temperature detection that detects the temperatures of a plurality of pipes Pa, Pb, Pc, and Pd. The apparatus 60 and the indoor temperature detection apparatus 70 which detects the temperature of indoor space are provided.

  FIG. 3 is a diagram schematically illustrating an example of the gas supply device 50 according to the present embodiment. As shown in FIGS. 2 and 3, the gas supply device 50 is disposed in the indoor space A. The gas supply device 50 includes a housing 51, a fan 52 that takes the gas in the indoor space A into the housing 51, a gas temperature adjuster 53 that is disposed inside the housing 51 and adjusts the temperature of the gas, and a gas temperature adjuster. A nozzle 54 having a supply port 54M for supplying the gas adjusted in temperature to the specific pipe Pc, and a control device 55 for controlling the fan 52 and the gas temperature regulator 53.

  The gas in the indoor space A is air. The fan 52 can rotate inside the housing 51. When the fan 52 is activated, the gas in the indoor space A flows into the housing 51.

  The gas temperature adjuster 53 adjusts the temperature of the gas in the indoor space A taken into the housing 51 by the fan 52. In the present embodiment, the gas temperature adjuster 52 has a heater including a heating wire and can heat the gas.

  The gas whose temperature is adjusted by the gas temperature adjuster 53 is supplied to the flow path of the specific pipe Pc through the supply port 54M provided at the tip of the nozzle 54. An opening K is provided in a part of the specific pipe Pc. When the nozzle 54 is inserted into the opening K, the supply port 54M is arranged in the flow path of the specific pipe Pc. When the supply port 54M is disposed in the flow path of the specific pipe Pc, the fan 52 and the gas temperature regulator 53 are operated, whereby the heated gas is supplied to the flow path of the specific pipe Pc.

  The gas supply device 50 supplies the gas adjusted to a temperature different from the temperature of the indoor space to the specific pipe Pc. The control device 55 includes a computer unit such as a microprocessor, and controls the fan 52 and the gas temperature regulator 53. The control device 55 controls the gas temperature regulator 53 so that the difference between the temperature of the gas supplied from the supply port 54M to the specific pipe Pc and the temperature of the indoor space is equal to or greater than a specified value.

  The specified value of the difference between the temperature of the gas supplied to the specific pipe Pc and the temperature of the indoor space is, for example, 10 [° C.]. The control device 55 controls the gas temperature regulator 53 so that the temperature of the gas supplied from the supply port 54M to the specific pipe Pc is at least 10 [° C.] higher than the temperature of the indoor space. In the present embodiment, the nozzle 54 is provided with a temperature sensor 56 that detects the temperature of the gas supplied from the supply port 54M. The control device 55 controls the gas temperature regulator 53 based on the detection value of the temperature sensor 56.

  Further, the control device 55 can control the rotation speed per unit time of the fan 52 to adjust the supply amount of gas per unit time supplied from the supply port 54 to the specific pipe Pc.

  FIG. 4 is a diagram schematically illustrating an example of the pipe temperature detection device 60 according to the present embodiment. The pipe temperature detection device 60 can simultaneously detect the temperatures of the plurality of pipes Pa, Pb, Pc, and Pd in a non-contact manner. In the present embodiment, the pipe temperature detection device 60 includes a thermography. The pipe temperature detection device 60 may include an infrared camera.

  The pipe temperature detection device 60 includes an optical system 61 having a visual field area in which a plurality of pipes Pa, Pb, Pc, and Pd including the specific pipe Pc are arranged, and pipes Pa, Pb, Pc, and Pd through the optical system 61. And a detecting element 62 for detecting infrared rays.

  The pipe temperature detection device 60 includes a control device 63 including a computer unit such as a microprocessor, and an output device 64 that outputs pipe temperature data of a plurality of pipes Pa, Pb, Pc, and Pd acquired by the pipe temperature detection device 60. And have. In the present embodiment, the output device 64 is a display device 64 that displays pipe temperature data as image data. The display device 64 includes a flat panel display such as a liquid crystal display or an organic EL display.

  As shown in FIG. 2, the gas supply device 50 includes an indoor space B from a portion Ba of the specific pipe Pc disposed in the indoor space A among the plurality of indoor spaces A, B, C, D, E, F, and G. , C, D, E, and F so that the gas flows through the specific piping Pc portion Bg disposed in the indoor space G through the specific piping Pc portions Bb, Bc, Bd, Be, and Bf. The gas is supplied to the specific pipe Pc. The gas supplied up to the portion Bg of the specific pipe Pc is released into the atmosphere, for example. Note that the gas supplied up to the portion Bg of the specific pipe Pc may be recovered by a gas recovery device (not shown).

  The indoor temperature detection device 70 detects the temperature of the indoor space G different from the indoor space A in which the gas supply device 50 is arranged. In the present embodiment, the indoor space G is a space on the downstream side of the gas from the indoor space A, and is a space where the gas used for pipe identification is released or collected.

  FIG. 5 is a functional block diagram showing an example of the gas temperature adjusting device 50 in the identification system 40A according to the present embodiment. As shown in FIG. 5, the control device 55 of the gas temperature adjusting device 50 outputs a control signal to the input / output unit 55A and the fan 52, and supplies gas to the specific pipe Pc from the supply port 54M. A supply amount control unit 55B that controls the supply amount, a temperature control unit 55C that outputs a control signal to the gas temperature regulator 53 and controls the temperature of the gas supplied from the supply port 54M to the specific pipe Pc, and a temperature sensor 56 A gas temperature data acquisition unit 55D for acquiring gas temperature data indicating the temperature of the gas supplied to the specific pipe Pc from the supply port 54M, and a detection signal of the indoor temperature detection device 70 to acquire the detection signal A space temperature data acquisition unit 55E that acquires space temperature data indicating the temperature of the space G.

  The indoor temperature detection device 70 transmits a temperature sensor 71 that detects the temperature of the indoor space G, and space temperature data that indicates the temperature of the indoor space G detected by the temperature sensor 71 to the control device 55 of the gas supply device 50. Part 72. The transmission unit 72 may transmit the space temperature data to the control device 55 by wire, or may transmit to the control device 55 wirelessly.

  FIG. 6 is a functional block diagram illustrating an example of the pipe temperature detection device 60 in the identification system 40A according to the present embodiment. As shown in FIG. 6, the control device 63 of the pipe temperature detection device 60 acquires a detection signal from the input / output unit 63A and the detection element 62, and each of a plurality of pipes Pa, Pb, Pc, Pd including the specific pipe Pc. The pipe temperature data acquisition unit 63B that acquires the pipe temperature data indicating the temperature of the pipe, the image processing unit 63C that performs image processing on the pipe temperature data acquired by the pipe temperature data acquisition unit 63B, and the pipe temperature data acquisition unit 63B. A display control unit 63D for causing the display device 64 to display the pipe temperature data.

  The display control unit 63D generates display data to be displayed on the display device 64 from the pipe temperature data image-processed by the image processing unit 63C, and outputs the display data to the display device 64. The display control unit 63D functions as an output control unit that outputs the pipe temperature data acquired by the pipe temperature data acquisition unit 63B. The display device 64 displays display data generated based on the pipe temperature data.

  Next, a method for identifying the specific pipe Pc and the other pipes Pa, Pb, Pd according to the present embodiment will be described. FIG. 7 is a flowchart illustrating an example of the identification method according to the present embodiment.

  The space temperature data acquisition unit 55E of the gas supply device 50 acquires the space temperature data of the indoor space G from the indoor temperature detection device 70 (step SA10).

  Based on the space temperature data, the temperature controller 55C of the gas supply device 50 controls the gas temperature regulator 53 so that the temperature of the gas supplied to the specific pipe Pc and the temperature of the indoor space G are different. The gas temperature regulator 53 supplies the specific pipe Pc with the temperature of the gas supplied to the specific pipe Pc and the temperature of the indoor space G based on the space temperature data acquired by the space temperature data acquisition unit 55E. Adjust the gas temperature. The gas supply device 50 supplies the gas adjusted to a temperature different from the temperature of the indoor space G to the specific pipe Pc. In the present embodiment, the gas supply device 50 supplies a gas having a temperature higher than that of the indoor space G to the specific pipe Pc (step SA20).

  The pipe temperature detection device 60 detects the temperature of each of the plurality of pipes Pa, Pb, Pc, Pd. The pipe temperature data acquisition unit 63B acquires pipe temperature data from the pipe temperature detection device 60 (step SA30).

  The image processing unit 63C performs image processing on the pipe temperature data. The display control unit 63D generates display data to be displayed on the display device 64 based on the pipe temperature data, and outputs the display data to the display device 64. The display device 64 displays pipe temperature data indicating the temperatures of the plurality of pipes Pa, Pb, Pc, and Pd (step SA40).

  A high temperature gas supplied from the gas supply device 50 flows through the specific pipe Pc. The surface temperature of the specific pipe Pc is higher than the temperature of the indoor space. On the other hand, no gas is supplied from the gas supply device 50 to the other pipes Pa, Pb, and Pd. Therefore, the surface temperatures of the pipes Pa, Pb, and Pd are substantially equal to the temperature of the indoor space. In the present embodiment, a gas having a temperature higher than a specified value than the temperature of the indoor space flows through the specific pipe Pc. Therefore, the difference between the surface temperature of the specific pipe Pc and the surface temperature of the pipes Pa, Pb, and Pd is not less than a specified value (10 [° C.] or more).

  As described above, the pipe temperature detection device 60 includes a thermography, and the display device 64 displays the specific pipe Pc and the other pipes Pa, Pb, and Pd in different forms. The display device 64 displays the specific pipe Pc in red, for example, and displays the other pipes Pa, Pb, Pd in blue, for example.

  The operator can identify the specific pipe Pc and the other pipes Pa, Pb, and Pd based on the pipe temperature data displayed on the display device 64 (step SA50). By identifying the specific pipe Pc, the worker can perform the disassembly work of the specific pipe Pc.

  As described above, according to the present embodiment, the gas adjusted to a temperature different from the temperature of the indoor space in the specific piping Pc among the plurality of pipings Pa, Pb, Pc, Pd arranged in the indoor space. The pipe temperature data indicating the temperature of each of the plurality of pipes Pa, Pb, Pc, and Pd is acquired, and the acquired pipe temperature data is displayed on the display device 64. The specific pipe Pc and the other pipes Pa, Pb, and Pd can be distinguished from each other without much effort. Further, the identification work of the specific pipe Pc can be performed in a short period with good workability.

  Also, the method of identifying a pipe by flowing a gas through the pipe can omit various processes such as a purification process and a monitoring process as compared with a method of flowing water. Therefore, the cost of decommissioning can be reduced. In addition, since the pipe is identified by flowing a gas through the pipe, the pipe can be disassembled immediately after the pipe identification work is completed. Therefore, the period of the decommissioning process can be shortened. Moreover, even if the gas that has flowed through the pipe leaks, damage due to the leak can be reduced as compared with the method of flowing water. Moreover, the method of flowing high temperature gas to piping can suppress the risk of a burn of an operator compared with the method of flowing high temperature water.

  Moreover, according to this embodiment, the gas supply apparatus 50 takes in the gas of the indoor space A into the housing 51, adjusts the temperature of the taken-in gas, and supplies it to the specific piping Pc. Therefore, the gas in the indoor space A can be effectively used without preparing complicated equipment.

  In the present embodiment, the pipes Pa, Pb, Pc, and Pd are arranged across a plurality of indoor spaces A, B, C, D, E, F, and G of the nuclear power plant 100. From the viewpoint of increasing the efficiency of dismantling the specific pipe Pc, for example, as shown in FIG. 2, the worker in the indoor space B, the worker in the indoor space D, and the worker in the indoor space F are simultaneously specified pipe. It is preferable that the Pc dismantling operation can be performed. In the present embodiment, the gas supply device 50 includes a portion Bb of the specific pipe Pc disposed in the indoor spaces B, C, D, E, and F from a portion Ba of the specific pipe Pc disposed in the indoor space A. The gas is supplied to the specific pipe Pc so that the gas flows through the portion Bg of the specific pipe Pc arranged in the indoor space G through Bc, Bd, Be, Bf. Therefore, the worker in the indoor space B, the worker in the indoor space D, and the worker in the indoor space F can simultaneously identify the specific pipe Pc and the other pipes Pa, Pb, and Pd. Therefore, the disassembly work of the specific pipe Pc can be performed simultaneously in the plurality of indoor spaces B, D, and F.

  In the present embodiment, the temperature of the indoor space is detected by the indoor temperature detection device 70, and the gas supply device 50 acquires the space temperature data indicating the temperature of the indoor space and supplies the specific pipe Pc with the gas. Adjust the temperature. Therefore, the gas supply device 50 can set the difference between the temperature of the specific pipe Pc and the temperatures of the other pipes Pa, Pb, and Pd to a specified value or more.

  In the present embodiment, the gas is supplied from the gas supply device 50 to the specific pipe Pc in the indoor space A, the temperature of the indoor space G downstream of the indoor space A is detected by the indoor temperature detection device 70, and the gas The supply device 50 acquires space temperature data indicating the temperature of the indoor space G, and adjusts the temperature of the gas supplied to the specific pipe Pc. The temperature of the gas supplied to the specific pipe Pc is adjusted based on the temperature of the indoor space G that is different from the indoor space A in which the gas supply device 50 is arranged. The difference with the temperature of other piping Pa, Pb, Pd can be made more than a specified value. In the indoor space A, the specific pipe Pc is specified in order to insert the nozzle 54 of the gas supply device 50 into the opening K of the specific pipe Pc. By adjusting the temperature of the gas supplied to the specific pipe Pc based on the space temperature data of the indoor space G different from the indoor space A, the specific pipe Pc and the other pipes Pa, Pb, Pd in the indoor space G The identification work is smoothly performed. The indoor temperature detection device 70 detects the temperature of at least one of the indoor spaces B, C, D, E, and F, and the gas supply device 50 supplies the gas supplied to the specific pipe Pc based on the temperature of the indoor space. You may adjust the temperature. Note that the gas supply device 50 may adjust the temperature of the gas supplied to the specific pipe Pc based on the temperature of the indoor space A.

  In the present embodiment, the pipe temperature data of the pipes Pa, Pb, Pc, and Pd is acquired by the pipe temperature detection device 60 including a thermography having the optical system 61 and the detection element 62. Therefore, the pipe temperature data of the pipes Pa, Pb, Pc, and Pd can be efficiently acquired at the same time.

  In the present embodiment, a temperature sensor 56 that detects the temperature of the gas supplied from the gas supply device 50 to the specific pipe Pc is provided, and the gas supply device 50 is specified based on the detection value of the temperature sensor 56. The temperature of the gas supplied to the pipe Pc is adjusted. For this reason, the gas supply device 50 can accurately supply a gas having a temperature difference between the temperature of the indoor space and a specified value or more.

  In the present embodiment, for example, a temperature sensor that detects the temperature of the portion Bg of the specific pipe Pc in the indoor space G is provided, and is supplied from the gas supply device 50 to the specific pipe Pc based on the detection value of the temperature sensor. The temperature of the gas to be adjusted may be adjusted. When the length of the specific pipe Pc is long, even if the gas whose temperature is adjusted is supplied from the gas supply device 50 to the specific pipe Pc in the indoor space A, the portions Bb, Bc, Bd, Be, Bf of the specific pipe Pc are used. There is a possibility that the difference between the temperature of the gas and the temperature of the indoor space G becomes small in the portion Bg of the indoor space G. Therefore, the temperature of the part Bg of the specific pipe Pc is detected by the temperature sensor, and the control device 55 is configured so that the difference between the temperature of the part Bg of the specific pipe Pc and the temperature of the indoor space G is equal to or greater than a specified value. And at least one of the gas temperature regulator 53 may be controlled. For example, the control device 55 sets the temperature of the gas supplied from the supply port 54M to the specific pipe Pc so that the difference between the temperature of the part Bg of the specific pipe Pc and the temperature of the indoor space G is 10 [°] or more. It may be increased, or the amount of gas supplied per unit time supplied from the supply port 54M to the specific pipe Pc may be increased.

Second Embodiment
A second embodiment will be described. In the following description, the same or equivalent components as those of the above-described embodiment are denoted by the same reference numerals, and the description thereof is simplified or omitted.

  FIG. 8 is a flowchart illustrating an example of a pipe identification method according to the present embodiment. The space temperature data acquisition unit 55E of the gas supply device 50 acquires the space temperature data of the indoor space G from the indoor temperature detection device 70 (step SA10). Based on the space temperature data, the temperature control unit 55C of the gas supply device 50 controls the gas temperature regulator 53 so that the temperature of the gas supplied to the specific pipe Pc and the temperature of the indoor space G are equal to or higher than a specified value. . In the present embodiment, the gas temperature regulator 53 includes a chiller device that can cool the supplied gas. The gas supply device 50 supplies a gas having a lower temperature than the indoor space G to the specific pipe Pc (step SA20b).

  The pipe temperature detection device 60 detects the temperature of each of the plurality of pipes Pa, Pb, Pc, Pd. The pipe temperature data acquisition unit 63B acquires pipe temperature data from the pipe temperature detection device 60 (step SA30). The display control unit 63D generates display data to be displayed on the display device 64 based on the pipe temperature data, and outputs the display data to the display device 64. The display device 64 displays pipe temperature data indicating the temperatures of the plurality of pipes Pa, Pb, Pc, and Pd (step SA40). The operator can identify the specific pipe Pc and the other pipes Pa, Pb, and Pd based on the pipe temperature data displayed on the display device 64 (step SA50). Thereby, the dismantling operation | work of specific piping Pc can be implemented.

  As described above, the gas supply device 50 may supply a gas having a temperature lower than the temperature of the indoor space G to the specific pipe Pc. When the heat resistance of the specific pipe Pc is low, the gas can flow smoothly in the specific pipe Pc by using a low-temperature gas. In addition, there is no risk of operator burns.

<Third Embodiment>
A third embodiment will be described. FIG. 9 is a functional block diagram showing an example of the gas supply device 50 of the identification system 40C according to the present embodiment.

  The control device 55 includes a fluid data acquisition unit 55F that acquires fluid data that has been distributed to the specific pipe Pc during the operation period before the dismantling operation. The fluid data may be input to the fluid data acquisition unit 55F via an input device such as a keyboard or a touch panel. The fluid data may be stored in a storage device such as a storage, and the fluid data acquisition unit 55F may acquire the fluid data from the storage device.

  In the present embodiment, the temperature control unit 55C sets the temperature of the gas supplied to the specific pipe Pc at a temperature higher or lower than the temperature of the indoor space G based on the fluid data acquired by the fluid data acquisition unit 55F. Adjust to either one.

  For example, when a fluid containing a chemical substance that chemically reacts at a high temperature is circulating in the specific pipe Pc, the gas temperature regulator 53 is connected to the specific pipe Pc based on the fluid data acquired by the fluid data acquisition unit 55F. The temperature of the supplied gas is adjusted to a temperature lower than the temperature of the indoor space G. Thereby, even if a chemical substance remains in the specific pipe Pc, the occurrence of a chemical reaction is suppressed.

  On the other hand, when a fluid containing a chemical substance that chemically reacts at a low temperature is circulated through the specific pipe Pc, the gas temperature regulator 53 passes through the specific pipe Pc based on the fluid data acquired by the fluid data acquisition unit 55E. The temperature of the supplied gas is adjusted to a temperature higher than the temperature of the indoor space G.

  As described above, the gas temperature adjusting device 50 can switch between the supply of the high temperature gas and the supply of the low temperature gas based on the fluid data.

  For example, when the dismantling operation is performed in summer and the temperature of the indoor space is high, the gas temperature adjusting device 50 may supply a low-temperature gas to the specific pipe Pc. Further, when the dismantling operation is performed in winter and the temperature of the indoor space is low, the gas temperature adjusting device 50 may supply a high-temperature gas to the specific pipe Pc. By doing so, the physical burden on the worker who performs the dismantling work is reduced.

<Fourth embodiment>
A fourth embodiment will be described. FIG. 10 is a diagram schematically illustrating an example of the identification system 40D according to the present embodiment. In the above-described embodiment, the control device 63 and the display device 64 are provided in the pipe temperature detection device 60. In the present embodiment, an example in which the control device 63 and the display device 64 are arranged at a remote place of the pipe temperature detection device 60 will be described.

  As shown in FIG. 10, the pipe temperature detection device 60 including the optical system 61 and the detection element 62 is mounted on a mobile robot 67. The pipe temperature detection device 60 and the mobile robot 67 are controlled by remote operation.

  The pipe temperature data acquired by the pipe temperature detection device 60 is transmitted to the control device 63 by wireless communication. In the present embodiment, the pipe temperature detection device 60 includes a transmitter 65 capable of wirelessly transmitting pipe temperature data. The control device 63 has a receiver 66 that can wirelessly receive pipe temperature data.

  The control device 63 causes the display device 64 to display the received pipe temperature data. The operator can identify the specific pipe Pc and the other pipes Pa, Pb, and Pd at a remote place in the indoor space.

  In the first to fourth embodiments described above, the output device 64 is the display device 64. The output device 64 may be a printing device that prints out pipe temperature data.

<Fifth Embodiment>
A fifth embodiment will be described. FIG. 11 is a diagram illustrating an example of the identification system 40E according to the present embodiment. The identification system 40E is adjusted to a temperature lower than the temperature of the indoor space in the specific pipe Pc so that the surface of the specific pipe Pc of the plurality of pipes Pa, Pb, Pc, Pd arranged in the indoor space is condensed. A refrigerant supply device 50E for supplying the refrigerant. The refrigerant may be a gas or a liquid. By supplying the refrigerant to the specific pipe Pc, the surface of the specific pipe Pc is condensed. The surfaces of the other pipes Pa, Pb, and Pd to which no refrigerant is supplied do not condense. Therefore, the worker can identify the specific pipe Pc and the other pipes Pa, Pb, and Pd through vision. Since the operator can identify the specific pipe Pc by visual observation, the identification system 40E can be simplified.

  In addition, the risk of burns for workers is eliminated by using the refrigerant. Moreover, it is applicable also to the specific piping Pc with low heat resistance.

  In addition, there is a possibility that the dew condensation on the specific pipe Pc cannot be sufficiently confirmed by an operator's visual observation. Therefore, as shown in FIG. 11, the evaluation member 32 whose appearance changes when it gets wet may be arranged on the surface of each of the plurality of pipes Pa, Pb, Pc, Pd including the specific pipe Pc. The evaluation member 32 may be a test paper whose color changes due to contact with a liquid, for example.

  The evaluation system 40E may include an imaging device 60E that can acquire image data of the pipes Pa, Pb, Pc, and Pd. Hereinafter, an identification method using the imaging device 60E will be described. As shown in FIG. 11, the imaging device 60E includes an optical system 61E having a visual field area in which a plurality of pipes Pa, Pb, Pc, and Pd including the specific pipe Pc are arranged, and the pipes Pa and Pb via the optical system 61E. , Pc, and Pd. Image data of the pipes Pa, Pb, Pc, and Pd is acquired by the imaging device 60E.

  The control device 63E of the imaging device 60E performs image processing on the input / output unit 63Ae, the piping image data acquisition unit 63Be that acquires image data acquired by the imaging device 60E, and the image data acquired by the piping image data acquisition unit 63Be. An image processing unit 63Ce that generates the display data to be displayed on the display device 64E based on the image data acquired by the pipe image data acquisition unit 63Be, and outputs the display data to the display device 64E. Have.

  FIG. 12 is a flowchart illustrating an example of a pipe identification method according to the present embodiment. The refrigerant supply device 50E supplies the refrigerant to the specific pipe Pc (Step SE10). The imaging device 60E detects image data of each of the plurality of pipes Pa, Pb, Pc, Pd. The pipe image data acquisition unit 63Be acquires image data from the imaging device 60E (step SE20). The display control unit 63De generates display data to be displayed on the display device 64E based on the image data of the pipes Pa, Pb, Pc, and Pd, and outputs the display data to the display device 64E. The display device 64E displays the image data of each of the plurality of pipes Pa, Pb, Pc, Pd (step SE30). The operator can identify the specific pipe Pc and the other pipes Pa, Pb, Pd based on the image data displayed on the display device 64E (step SE40). Thereby, the dismantling operation | work of specific piping Pc can be implemented.

  As described above, it is possible to identify the specific pipe Pc and the other pipes Pa, Pb, and Pd by acquiring an image of the pipe instead of infrared rays emitted from the pipe. In addition, after the evaluation member 32 is arranged in the pipes Pa, Pb, Pc, and Pd, the refrigerant is supplied to the specific pipe Pc, so that the condensed specific pipe Pc can be made conspicuous. Therefore, the identification work of the specific pipe Pc is smoothly performed.

  In the first to fifth embodiments described above, the specific pipe Pc is a pipe that should be disassembled, and the other pipes Pa, Pb, and Pd are pipes that should not be disassembled. The specific pipe Pc is a pipe that should not be disassembled, and other pipes Pa, Pb, and Pd may be pipes that should be disassembled.

<Sixth Embodiment>
A sixth embodiment will be described. FIG. 13 is a diagram schematically illustrating an example of an identification system 40F according to the present embodiment. Also in the present embodiment, the plurality of pipes Pa, Pb, Pc, and Pd are respectively disposed across the plurality of indoor spaces A, B, C, D, E, F, and G in which the nuclear power plant 100 is partitioned. In the present embodiment, the specific pipe Pc is a pipe that should not be disassembled, and the other pipes Pa, Pb, and Pd are pipes that should be disassembled.

  The identification system 40F includes a plurality of vibration generators 80 arranged at intervals on the specific pipe Pc. In the present embodiment, the vibration generator 80 includes a vibration generator 80A arranged in the indoor space A, a vibration generator 80B arranged in the indoor space D, and a vibration generator 80C arranged in the indoor space F. ,including.

  There is a possibility that the pipes Pa, Pb, and Pd are specified, and the worker accidentally dismantles the specific pipe Pc while the pipes Pa, Pb, and Pd are being disassembled. In the present embodiment, the identification system 40F continues to vibrate the specific pipe Pc or the fluid of the specific pipe Pc using the vibration generating device 80 during the disassembly work of the pipes Pa, Pb, and Pd. Thereby, the operator can identify the piping Pa, Pb, Pd to be disassembled and the specific piping Pc that should not be disassembled in the dismantling operation of the piping Pa, Pb, Pd. Therefore, it is possible to prevent the specific pipe Pc from being disassembled by mistake.

  FIG. 14 is a diagram schematically illustrating an example of the vibration generator 80 according to the present embodiment. As shown in FIG. 14, the vibration generator 80 includes a housing 81, a vibration generator 82, a counter 83, a control unit 84 that controls the vibration generator 82, and a storage unit 85. The vibration generator 82, the counter 83, the control unit 84, and the storage unit 85 are disposed inside the housing 81.

  The vibration generator 82 is arrange | positioned so that the surface of the specific piping Pc may be contacted. The vibration generator 82 vibrates the specific pipe Pc and vibrates the fluid existing in the flow path of the specific pipe Pc.

  The counter 83 counts the count value at a constant period. The counter 83 includes a clock that counts time at a constant period. The count value of the counter 83 is output to the control unit 84.

  The control unit 84 includes a computer unit such as a microprocessor, and controls the vibration generator 82 by outputting a control signal to the vibration generator 82.

  The storage unit 85 includes a memory such as a read only memory (ROM) or a random access memory (RAM), and a vibration generator 82 (external vibration generator) of another vibration generator 80 arranged in the specific pipe Pc. The vibration condition data is stored. For example, the storage unit 85 of the vibration generator 80C stores vibration condition data of the vibration generators 82 of the other vibration generators 80A and 80B.

  The counters 83 of the plurality of vibration generators 80A, 80B, 80C operate in synchronization. That is, the counter 83 of the vibration generator 80A, the counter 83 of the vibration generator 80B, and the counter 83 of the vibration generator 80C count the count value (time) at the same cycle and timing.

  In the present embodiment, each of the plurality of vibration generators 80A, 80B, 80C operates the vibration generator 82 for a predetermined operation period. The operation period of the vibration generator 82 is determined based on the count value of the counter 83.

  Each of the plurality of vibration generators 80A, 80B, and 80C controls the vibration generator 82 based on the count value of the counter 83 so that the operation periods of the vibration generators 82 do not overlap each other.

  For example, the counter 83 of the vibration generator 80C operates in synchronization with the counters 83 of the other vibration generators 80A and 80B. Based on the count value of the counter 83 of the vibration generator 80C, the control unit 84 of the vibration generator 80C does not overlap the operation period of the vibration generator 82 of the other vibration generators 80A and 80B. The vibration generator 82 is controlled. The storage unit 85 of the vibration generator 80C stores vibration condition data including the period and timing of the count value of the counter 83 of the vibration generators 80A and 80B and the operation period of the vibration generator 82. Therefore, the control unit 84 of the vibration generating device 80C can select another vibration generating device based on the count value of the counter 83 of the vibration generating device 80C and the vibration condition data stored in the storage unit 85 of the vibration generating device 80C. The vibration generator 82 of the vibration generator 80C can be controlled so as not to overlap with the operation period of the vibration generators 82A and 80B. The same applies to the vibration generators 80A and 80B.

  Next, a pipe identifying method according to the present embodiment will be described. FIG. 15 is a flowchart illustrating an example of a pipe identification method according to the present embodiment.

  After the pipes Pa, Pb, and Pd to be disassembled are specified, the plurality of vibration generators 80A, 80B, and 80C are arranged at intervals to the specific pipe Pc that should not be disassembled (step SF10).

  The control unit 84 of the vibration generating device 80A acquires the count value of the counter 83 of the vibration generating device 80A. Similarly, the control unit 84 of the vibration generator 80B acquires the count value of the counter 83 of the vibration generator 80B, and the control unit 84 of the vibration generator 80C acquires the count value of the counter 83 of the vibration generator 80C. (Step SF20).

  The control unit 84 of the vibration generator 80A includes the count value of the counter 83 of the vibration generator 80A and the vibration generators 82B and 82C of the other vibration generators 80B and 80C stored in the storage unit 85 of the vibration generator 80A. Based on the vibration condition data, the vibration generator 82A of the vibration generator 80A is controlled so as not to overlap with the operation periods of the vibration generators 82B and 82C of the other vibration generators 80B and 80C.

  Similarly, the control unit 84 of the vibration generator 80B includes the count value of the counter 83 of the vibration generator 80B and the vibration generators of the other vibration generators 80A and 80C stored in the storage unit 85 of the vibration generator 80B. Based on the vibration condition data of 82A and 82C, the vibration generator 82B of the vibration generator 80B is controlled so as not to overlap with the operation period of the vibration generators 82A and 82C of the other vibration generators 80A and 80C.

  Similarly, the control unit 84 of the vibration generator 80C includes the count value of the counter 83 of the vibration generator 80C and the vibration generators of the other vibration generators 80AA and 80B stored in the storage unit 85 of the vibration generator 80C. Based on the vibration condition data of 82A and 82B, the vibration generator 82C of the vibration generator 80C is controlled so as not to overlap with the operation period of the vibration generators 82A and 82B of the other vibration generators 80A and 80B (step) SF30).

  FIG. 16 is a timing chart showing an operation period of the vibration generators 82A, 82B, and 82C of the vibration generators 80A, 80B, and 80C according to the present embodiment. As shown in FIG. 16, each of the plurality of vibration generators 80A, 80B, 80C has vibration generators 82A, 82A, 80C, 80A, 82B, 80C so that their operation periods (vibration generation periods) do not overlap each other. 82B and 82C are controlled.

  When the operation periods of the vibration generators 82A, 82B, and 82C overlap, for example, the vibration generated by the vibration generator 82A and the vibration generated by at least one of the vibration generators 82B and 82C cancel each other, and the vibration can be attenuated. There is sex. By not overlapping the operation periods of the vibration generators 82A, 82B, and 82C, it is possible to continue to vibrate the specific pipe Pc or the fluid in the flow path of the specific pipe Pc.

  Since the fluid in the flow path of the specific pipe Pc or the specific pipe Pc is continuously vibrated by the plurality of vibration generators 80A, 80B, and 80C of the identification system 40F, the operator can use the pipe Pa, Pb, and Pd to disassemble the pipe Pa, Pb, and Pd. , Pb, Pd and the specific piping Pc can be identified (step SF40). Thereby, it is suppressed that specific piping Pc will be demolished accidentally.

<Seventh embodiment>
A seventh embodiment will be described. FIG. 17 is a diagram schematically illustrating an example of an identification system 40G according to the present embodiment. Also in the present embodiment, the plurality of pipes Pa, Pb, Pc, and Pd are respectively disposed across the plurality of indoor spaces A, B, C, D, E, F, and G in which the nuclear power plant 100 is partitioned. Also in the present embodiment, the specific pipe Pc is a pipe that should not be disassembled, and the other pipes Pa, Pb, and Pd are pipes that should be disassembled.

  The identification system 40G includes a plurality of vibration generators 90 that are arranged at intervals in the specific pipe Pc. In the present embodiment, the vibration generator 90 includes a vibration generator 90A disposed in the indoor space A, a vibration generator 90B disposed in the indoor space D, and a vibration generator 90C disposed in the indoor space F. ,including.

  FIG. 18 is a diagram schematically illustrating an example of the vibration generator 90 according to the present embodiment. As shown in FIG. 18, the vibration generator 90 includes a housing 91, a vibration generator 92, a vibration detector 93, a control unit 94 for controlling the vibration generator 92, and a detection value of the vibration detector 93 as a threshold value. And a determination unit 95 that determines whether or not the above is true. The vibration generator 92, the vibration detector 93, the control unit 94, and the determination unit 95 are disposed inside the housing 91.

  The vibration generator 92 is disposed so as to contact the surface of the specific pipe Pc. The vibration generator 92 applies vibration to the specific pipe Pc to vibrate the fluid existing in the flow path of the specific pipe Pc.

  The vibration detector 93 is disposed so as to contact the surface of the specific pipe Pc. The vibration detector 93 detects vibration generated by a vibration generator 92 (external vibration generator) of another vibration generator 90 disposed in the specific pipe Pc. For example, the vibration detector 93 of the vibration generator 90C detects the vibration generated by the vibration generator 92 of the other vibration generators 90A and 90B.

  The control unit 94 includes a computer unit such as a microprocessor, and controls the vibration generator 92 by outputting a control signal to the vibration generator 92. The controller 94 does not operate the vibration generator 92 during the vibration detection period of the vibration detector 93.

  The determination unit 95 includes a computer unit such as a microprocessor, and determines whether or not the detection value of the vibration detector 93 is greater than or equal to a threshold value.

  For example, when the vibration generator 92 of the vibration generator 90A is activated, the vibration generated by the vibration generator 92 propagates through the specific pipe Pc or the fluid in the flow path of the specific pipe Pc, and the vibration detector 93 of the vibration generator 90B. To reach. The vibration detector 93 of the vibration generator 90B detects the vibration generated by the vibration generator 92 of the other vibration generator 90A. In the vibration detection period in which the vibration generated by the vibration generator 92 of the vibration generator 90A is detected by the vibration detector 93 of the vibration generator 90B, the vibration generator 92 of the vibration generator 90B is not activated. The determination unit 95 of the vibration generator 90B determines whether or not the detection value of the vibration detector 93 of the vibration generator 90B is equal to or greater than a predetermined threshold value. When the determination unit 95 of the vibration generation device 90B determines that the detection value of the vibration detector 93 of the vibration generation device 90B is not equal to or greater than the threshold value, the control unit 94 of the vibration generation device 90B causes the vibration generator 92 of the vibration generation device 90B. Is activated. Thereby, even if the vibration generated by the vibration generator 90A in the indoor space A is attenuated before reaching the specific pipe Pc in the indoor space D, the vibration generator 90B generates the vibration.

  The same applies to the vibration generator 90C. The vibration detector 93 of the vibration generator 90C detects the vibration generated by the vibration generator 92 of the vibration generator 90B. When the determination unit 95 of the vibration generation device 90C determines that the detection value of the vibration detector 93 of the vibration generation device 90C is not equal to or greater than the threshold value, the control unit 94 of the vibration generation device 90C controls the vibration generator 92 of the vibration generation device 90C. Is activated. Thereby, vibration propagates reliably to the downstream side (the indoor space G side).

  Next, a pipe identifying method according to the present embodiment will be described. FIG. 19 is a flowchart illustrating an example of a pipe identification method according to the present embodiment.

  After the pipes Pa, Pb, and Pd to be disassembled are specified, a plurality of vibration generators 90A, 90B, and 90C are arranged at intervals to the specific pipe Pc that should not be disassembled (step SG10).

  The control unit 94 of the vibration generator 90A operates the vibration generator 92 of the vibration generator 90A. Thereby, the fluid of the specific piping Pc of the indoor space A or the flow path of the specific piping Pc vibrates. The vibration generated in the specific pipe Pc in the indoor space A propagates to the specific pipe Pc in the indoor space D.

  The vibration detector 93 of the vibration generator 90B arranged in the indoor space D detects the vibration generated by the vibration generator 92 of the vibration generator 90A (step SG20).

  The determination unit 95 of the vibration generator 90B determines whether or not the detection value of the vibration detector 93 of the vibration generator 90B is equal to or greater than a threshold value (step SG30).

  In step SG30, when it is determined that the detection value of the vibration detector 93 of the vibration generator 90B is not equal to or greater than the threshold value (step SG30: No), the control unit 94 of the vibration generator 90B controls the vibration generator of the vibration generator 90B. 93 is operated (step SG40).

  Thereby, for example, the worker in the indoor space D can identify the pipes Pa, Pb, Pd and the specific pipe Pc in the dismantling work of the pipes Pa, Pb, Pd (step SG50). Thereby, it is suppressed that specific piping Pc will be demolished accidentally.

  In step SG30, when it is determined that the detection value of the vibration detector 93 of the vibration generator 90B is equal to or greater than the threshold value (step SG30: Yes), the control unit 94 of the vibration generator 90B controls the vibration generator 90B. The vibration generator 93 may not be activated.

  Note that the operation of the vibration generator 90C is the same as the operation of the vibration generator 90B, and thus the description thereof is omitted.

  As described above, according to the present embodiment, the vibration detector 93 of the vibration generator 90 disposed on the downstream side detects the vibration generated by the vibration generator 92 of the upstream vibration generator 90. When the determination unit 95 determines that the detection value of the vibration detector 93 is not greater than or equal to the threshold value, the control unit 94 of the vibration generator 90 on the downstream side operates the vibration generator 92. Therefore, even if the vibration generated by the vibration generator 90 on the upstream side is attenuated, the vibration generator 90 on the downstream side generates vibration, so that the vibration can be reliably transmitted to the downstream side of the specific pipe Pc. . Therefore, vibration spreads from one end portion to the other end portion of the specific pipe Pc, and an operator in each indoor space can reliably identify the pipes Pa, Pb, Pd and the specific pipe Pc.

<Eighth Embodiment>
An eighth embodiment will be described. FIG. 20 is a schematic diagram for explaining an identification method according to the present embodiment. As shown in FIG. 20, the mark 34 is given to the specific pipe Pc among the plurality of pipes Pa, Pb, Pc, Pd arranged in the indoor space. The mark 34 is a sheet member (seal) having an adhesive layer that can adhere to the surface of the specific pipe Pc, for example.

  In the dismantling work of the piping system PS, the worker gives the mark 34 to the specific piping Pc based on the design data of the piping system PS. The worker gives a mark 34 to the specific piping Pc while referring to a system diagram or piping diagram in which design data of the piping system PS is written.

  An operator who performs the dismantling work can identify the specific pipe Pc and the other pipes Pa, Pb, and Pd based on the mark 34.

  In the present embodiment, the mark 34 is a mark indicating that the specific pipe Pc is a pipe to be dismantled. As shown in FIG. 20, the mark 34 includes data indicating the dismantling time of the specific pipe Pc.

  Moreover, there is a possibility that the schedule of dismantling work of the piping system PS is changed, the dismantling time of the specific piping Pc is changed, or the order of disassembling a plurality of pipings is changed. In such a case, a mark 34 including data indicating that the dismantling time has been changed or a mark 34 including data indicating that the order of dismantling has been changed may be given to the pipe.

  As described above, the mark 34 may be given to the specific pipe Pc to be dismantled by the operator before the dismantling work is performed. Thereby, the worker who performs the dismantling operation can identify the piping Pc to be dismantled and the piping Pa, Pb, Pd that should not be dismantling.

  In the sixth to eighth embodiments described above, the object to be identified may not be a pipe, and may be an object to identify various members in the dismantling operation of the incidental facilities of the nuclear power plant.

  In each of the above-described embodiments, the piping is arranged in the indoor space of the nuclear power plant 100. At least a part of the piping may be disposed in an outdoor (outdoor) space.

  In each of the embodiments described above, the nuclear power plant 100 includes a pressurized water reactor. The nuclear power plant 100 may include a boiling water reactor (BWR).

  In the above-described embodiments, the members are identified in the dismantling operation of the incidental equipment in the decommissioning process of the nuclear power plant 100. When it is necessary to identify a member in work other than dismantling work, the above-described identification system and identification method can be applied. Moreover, not only the members of the nuclear power plant 100 but also the identification system and the identification method described above can be applied to the identification of the members of the chemical plant.

DESCRIPTION OF SYMBOLS 1 Reactor 2 Reactor containment vessel 3 Reactor pressure vessel 4 Core 5 Steam turbine 5A High pressure turbine 5B Low pressure turbine 6 Generator 7 Steam generator 8 Pipe 9 Pressurizer 10 Pipe 11 Primary cooling water pump 12 Pipe 13 Condenser 14 Pipe 15 Secondary cooling water pump 16 Isolation valve 17 Moisture separation heater 18A Reheat pipe 18B Reheat pipe 19 Branch pipe 20 Intake pipe 20P Circulating water pump 21 Drain pipe 22 Bypass pipe 22B Bypass valve 23 Condensate pump 24 Ground condenser 25 Condensate demineralizer 26 Condensate booster pump 27 Low pressure feed water heater 28 Deaerator 29 High pressure feed water heater 30 Feed water control valve 32 Evaluation member 34 Mark 40A Identification system 50 Gas supply device 50E Refrigerant supply device 51 Housing 52 Fan 53 Gas Temperature controller 54 Nozzle 54M Supply port 55 Controller 55A Input / output unit 5 B Supply amount control unit 55C Temperature control unit 55D Gas temperature data acquisition unit 55E Spatial temperature data acquisition unit 55F Fluid data acquisition unit 56 Temperature sensor 60 Pipe temperature detection device 60E Imaging device 61 Optical system 61E Optical system 62 Detection element 62E Imaging device 63 Control device 63E Control device 63A Input / output unit 63Ae Input / output unit 63B Pipe temperature data acquisition unit 63Be Pipe image data acquisition unit 63C Image processing unit 63Ce Image processing unit 63D Display control unit (output control unit)
63De Display controller (output controller)
64 Display device (output device)
64E Display device (output device)
65 Transmitter 66 Receiver 67 Mobile Robot 70 Indoor Temperature Detection Device 71 Temperature Sensor 72 Transmitter 80 Vibration Generator 81 Housing 82 Vibration Generator 83 Counter 84 Control Unit 85 Storage Unit 90 Vibration Generator 91 Housing 92 Vibration Generator 93 Vibration Detector 94 Control unit 95 Determination unit 100 Nuclear power plant 101 Reactor system 102 Turbine system Ba, Bb, Bc, Bd, Be, Bf, Bg Partial K Open PS Piping system Pa Piping Pb Piping Pc Piping (Specific piping)
Pd Piping W Wall

Claims (23)

A gas supply device having a gas temperature regulator and supplying a gas adjusted to a temperature different from the temperature of the space to a specific pipe among a plurality of pipes arranged in the space;
A pipe temperature data acquisition unit for acquiring pipe temperature data indicating the temperature of each of the plurality of pipes including the specific pipe;
An output control unit that outputs the pipe temperature data acquired by the pipe temperature data acquisition unit;
An identification system comprising: The gas supply device includes: a housing in which the gas temperature regulator is disposed; a fan that takes gas in the space into the housing; and a gas in the space that is introduced into the housing and adjusted in temperature by the gas temperature regulator. A nozzle having a supply port for supplying the specific pipe with
The identification system according to claim 1. The space includes a plurality of indoor spaces partitioned by a nuclear power plant,
Each of the plurality of pipes including the specific pipe is disposed over the plurality of indoor spaces.
The identification system according to claim 1 or 2. A space temperature data acquisition unit for acquiring space temperature data indicating the temperature of the indoor space;
The gas supply device adjusts the temperature of the gas supplied to the specific pipe based on the space temperature data acquired by the space temperature data acquisition unit.
The identification system according to claim 3. In the gas supply device, the gas is supplied from the first part of the specific pipe disposed in the first indoor space to the second part of the specific pipe disposed in the second indoor space among the plurality of indoor spaces. Supply the gas to the specific pipe so that it flows,
The space temperature data acquisition unit acquires space temperature data of the second indoor space,
The gas temperature adjuster adjusts the temperature of the gas supplied to the specific pipe so that the temperature of the gas supplied to the specific pipe differs from the temperature of the second indoor space;
The identification system according to claim 4. The pipe temperature data includes an optical system having a visual field area in which a plurality of pipes including the specific pipe are arranged, and a detection element that detects infrared rays from the pipe via the optical system. Acquired by the device,
The pipe temperature data acquisition unit acquires the pipe temperature data from the pipe temperature detection device.
The identification system according to any one of claims 1 to 5. A fluid data acquisition unit for acquiring fluid data that has been distributed to the specific pipe;
The gas temperature regulator is configured to set the temperature of the gas supplied to the specific pipe based on the fluid data acquired by the fluid data acquisition unit, either higher or lower than the temperature of the space. To adjust,
The identification system according to any one of claims 1 to 6. A refrigerant supply device that supplies a refrigerant adjusted to a temperature lower than the temperature of the indoor space to the specific pipe so that the surface of the specific pipe among the plurality of pipes arranged in the indoor space is condensed;
Identification system. An evaluation member whose appearance changes by getting wet is arranged on the surface of each of the plurality of pipes including the specific pipe,
The image data of the pipe is obtained by an imaging device having an optical system having a visual field area in which the plurality of pipes including the specific pipe are arranged, and an imaging element that acquires an optical image of the pipe through the optical system. Acquired,
A piping image data acquisition unit for acquiring the image data;
An output control unit that outputs the image data acquired by the piping image data acquisition unit;
The identification system according to claim 8, comprising: The indoor space includes a plurality of partitioned indoor spaces of a nuclear power plant,
Each of the plurality of pipes including the specific pipe is disposed over the plurality of indoor spaces.
The identification system according to claim 8 or 9. A plurality of vibration generators arranged at intervals to a specific member among a plurality of members arranged in the space,
The vibration generator includes a vibration generator, a counter, and a control unit that controls the vibration generator,
The counter of the first vibration generator operates in synchronization with the counter of the other vibration generator;
Based on the count value of the counter of the first vibration generating device, the control unit of the first vibration generating device is configured so as not to overlap with an operation period of the vibration generator of another vibration generating device. Controlling the vibration generator of the first vibration generator;
Identification system. A plurality of vibration generators arranged at intervals to a specific member among a plurality of members arranged in the space,
The vibration generator includes a vibration generator, a vibration detector, a control unit that controls the vibration generator, and a determination unit that determines whether or not a detection value of the vibration detector is equal to or greater than a threshold value. ,
The vibration detector of the first vibration generator detects the vibration generated by the vibration generator of the other vibration generator;
When the determination unit determines that the detected value is not equal to or greater than a threshold value, the control unit of the first vibration generation device operates the vibration generator of the first vibration generation device.
Identification system. The space includes a plurality of indoor spaces partitioned by a nuclear power plant,
Each of the plurality of members including the specific member is disposed over the plurality of indoor spaces.
The identification system according to claim 11 or 12. A vibration generator disposed on a specific member among a plurality of members disposed in the space;
A counter,
A control unit for controlling the vibration generator;
A storage unit for storing vibration condition data of an external vibration generator disposed on the specific member,
The control unit controls the vibration generator based on the count value of the counter and the vibration condition data stored in the storage unit so as not to overlap with an operation period of the external vibration generator.
Vibration generator. A vibration generator disposed on a specific member among a plurality of members disposed in the space;
A vibration detector for detecting vibrations generated by an external vibration generator disposed on the specific member;
A control unit for controlling the vibration generator;
A determination unit that determines whether or not a detection value of the vibration detector is equal to or greater than a threshold value,
When the determination unit determines that the detected value is not greater than or equal to a threshold value, the control unit operates the vibration generator,
Vibration generator. The space includes a plurality of indoor spaces partitioned by a nuclear power plant,
Each of the plurality of members including the specific member is disposed over the plurality of indoor spaces.
The vibration generator according to claim 14 or 15. Supplying a gas adjusted to a temperature different from the temperature of the space to a specific pipe among a plurality of pipes arranged in the space;
Obtaining pipe temperature data indicating the temperature of each of the plurality of pipes including the specific pipe;
Identifying the specific piping and other piping based on the piping temperature data;
Identification method including: Supplying a refrigerant having a temperature lower than the temperature of the indoor space to the specific pipe so that the surface of the specific pipe among the plurality of pipes arranged in the indoor space is condensed.
Identifying the specific piping and other piping based on the surface of the condensed specific piping;
Identification method including: Disposing a plurality of vibration generating devices at intervals to a specific member among a plurality of members disposed in the space;
The plurality of vibrations based on the count values of the counters provided in each of the plurality of vibration generators so that the operation periods of the vibration generators provided in each of the plurality of vibration generators do not overlap. Activating the vibration generator of each of the generators;
Identification method including: Disposing a plurality of vibration generating devices at intervals to a specific member among a plurality of members disposed in the space;
Detecting a vibration generated by a vibration generator of another vibration generator with a vibration detector of the first vibration generator among the plurality of vibration generators;
Determining whether the detection value of the vibration detector is greater than or equal to a threshold;
Activating the vibration generator of the first vibration generator when it is determined that the detected value is not greater than or equal to the threshold;
Identification method including: Based on the design data of the piping system, giving a mark to a specific member among a plurality of members arranged in the space;
Identifying the specific member and another member based on the mark;
Identification method including: The mark is a mark indicating that the specific member is a member to be dismantled.
The identification method according to claim 21. The mark includes data indicating the disassembly time of the specific member,
The identification method according to claim 22.

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