Output method, output device, and program

Abstract

To support appropriate planning of a replacement time and the number of steam traps to be replaced of a target structure in a target facility.SOLUTION: Provided is an output method for an output device that outputs information about a plurality of steam traps installed in a plurality of facilities, the plurality of steam traps being classified into steam traps of multiple structures, the output method including: obtaining historical information indicative of a historical diagnostic result of the performance of each of the plurality of steam traps; receiving information indicating a target facility and a target structure, and generating, based on the historical information, a first transition that is a time transition of a performance index of a target trap that is a steam trap of a target structure in the target facility, and a second transition that is a time transition of the number of target traps in the target facility that have been diagnosed as being in a defective state; and outputting first information including the first transition and second information including the second transition.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a technique for outputting information about a plurality of steam traps installed in a plurality of facilities. [Background technology]

[0002] In facilities such as plants and factories equipped with steam piping systems, steam traps installed in appropriate locations in the piping system discharge condensate (drainage) generated by heat exchange or heat radiation to the outside of the piping system. If the performance of a steam trap deteriorates due to aging or malfunction, steam within the piping system leaks to the outside through the steam trap, resulting in unnecessary steam loss. Furthermore, excessive steam loss may cause the operation of the steam piping system to be inadvertently stopped. For this reason, periodically, such as once a year, multiple personnel are tasked with carrying a measurement and diagnostic device (hereinafter, "diagnostic device") such as that disclosed in Patent Document 1, and the personnel share the task of diagnosing approximately 1,000 steam traps in a single day.

[0003] Specifically, the diagnostic device measures the vibration and temperature of the steam trap in response to operation by the technician, and calculates an index (hereinafter referred to as a performance index) that represents the steam trap's performance, such as the amount of steam leakage, based on the measurements. Therefore, manually diagnosing multiple steam traps using a diagnostic device requires a significant amount of time. Therefore, some facilities have adopted a system in which a measuring device is permanently installed on each steam trap, and measurements of the steam trap's vibration and other values ​​required for diagnosis are periodically transmitted, such as once a day, to a server device, which then diagnoses each steam trap. In recent years, a system has emerged in which the server device is implemented as a cloud server, allowing multiple facilities to share the system. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2018-84418 Summary of the Invention [Problem to be solved by the invention]

[0005] When a steam trap is used for a long period of time, the steam and condensate flowing into the trap begin to contain impurities such as scale and rust. The amount of impurity varies depending on the quality of the industrial water used in the steam piping system at each facility and the material of the piping. The amount of impurity also varies depending on the facility's operating conditions for the steam trap, such as pressure and temperature. The higher the impurity content, the greater the degree of uneven wear that occurs in the steam trap and the greater the degree of deterioration in the steam trap's performance. Even if the impurity content is constant, the degree of uneven wear that occurs in the steam trap varies depending on the steam trap's structure, such as the valve opening and closing method and the maximum condensate discharge rate. Thus, the degree of deterioration in steam trap performance varies depending on the facility and the steam trap's structure.

[0006] Therefore, in order to reduce unnecessary steam loss and the opportunity for inadvertent shutdown of steam piping systems over the long term, it is necessary to appropriately plan the replacement timing and number of steam traps of each structure for each facility.

[0007] The present invention has been made in consideration of the above circumstances, and aims to provide an output method, an output device, and a program that can assist in appropriately planning the replacement timing and number of steam traps of a target structure in a target facility. [Means for solving the problem]

[0008] An output method according to one aspect of the present invention is an output method in an output device that outputs information about a plurality of steam traps installed in a plurality of facilities, the plurality of steam traps being classified into steam traps of a plurality of structures, acquiring historical information indicating the history of performance diagnosis results for each of the plurality of steam traps, accepting information indicating a target facility and its structure, and based on the historical information, generating a first transition that is the temporal transition of the performance index of a target trap that is a steam trap of the target structure in the target facility, and a second transition that is the temporal transition of the number of the target traps in the target facility that have been diagnosed as being in a poor state, and outputting the first information including the first transition and the second information including the second transition.

[0009] According to this configuration, by comparing the output first information and second information, it is possible to understand how the number of target traps diagnosed as being in a defective state increases or decreases over time when the performance of the target traps changes over time.

[0010] In this way, with this configuration, it is possible to grasp the relationship over time between the performance of steam traps of a target structure in a target facility and the number of units diagnosed as being in a defective state, thereby assisting in appropriately planning the replacement timing and number of steam traps of a target structure in the target facility.

[0011] In the above output method, the steam traps of the multiple structures include multiple types of steam traps classified according to valve opening and closing methods, and the information indicating the target structure may be information indicating any one of the multiple types.

[0012] This configuration can assist in appropriately planning the replacement timing and number of steam traps of the target valve opening and closing type in the target facility.

[0013] In the above output method, each type of steam trap may be classified into a plurality of models of steam traps according to a maximum condensate discharge rate, and the information indicating the target structure may further include information indicating any one of the plurality of models.

[0014] This configuration can assist in appropriately planning the timing and number of replacements for the target valve opening / closing method and the target steam trap with the maximum condensate discharge capacity in the target facility.

[0015] In the above output method, the performance index may be a measurement value of vibration of the target trap.

[0016] According to this configuration, by comparing the output first information and second information, it is possible to understand how the number of target traps diagnosed as being in a defective state increases or decreases over time when the measured vibration values ​​of the target traps change over time.

[0017] Another aspect of the present invention is an output device that outputs information about a plurality of steam traps installed in a plurality of facilities, the plurality of steam traps being classified into steam traps of a plurality of structures, and is equipped with a computer. The computer acquires historical information indicating the history of performance diagnosis results for each of the plurality of steam traps, accepts information indicating the target facility and the target structure, and, based on the historical information, generates a first transition that is the temporal transition of the performance index of a target trap that is a steam trap of the target structure in the target facility, and a second transition that is the temporal transition of the number of the target traps in the target facility that have been diagnosed as being in a poor state, and outputs the first information including the first transition and the second information including the second transition.

[0018] According to this configuration, the same effects as those of the above output method can be obtained.

[0019] Another aspect of the present invention is a program for an output device that outputs information about a plurality of steam traps installed in a plurality of facilities, the plurality of steam traps being classified into steam traps of a plurality of structures, and causes the output device to execute processing to acquire historical information indicating the history of performance diagnosis results for each of the plurality of steam traps, accept information indicating the target facility and the target structure, and, based on the historical information, generate a first transition that is the temporal transition of the performance index of a target trap that is a steam trap of the target structure in the target facility, and a second transition that is the temporal transition of the number of the target traps in the target facility that have been diagnosed as being in a poor state, and output the first information including the first transition and the second information including the second transition.

[0020] According to this configuration, the same effects as those of the above output method can be obtained. [Effects of the Invention]

[0021] According to the present invention, it is possible to assist in appropriately planning the replacement timing and number of steam traps of a target structure in a target facility. [Brief explanation of the drawings]

[0022] [Figure 1] FIG. 1 is a block diagram illustrating an example of the configuration of a steam trap management system. [Figure 2] 10 is a flowchart illustrating an output process of a server. [Figure 3] 4A and 4B are diagrams illustrating examples of first information and second information. [Figure 4] FIG. 10 is a diagram showing another example of the first information and the second information. DETAILED DESCRIPTION OF THE INVENTION

[0023] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Elements with the same reference numerals in different drawings indicate the same or corresponding elements.

[0024] <System configuration> 1 is a diagram showing the overall configuration of a steam trap management system 1000 according to an embodiment of the present disclosure. Steam trap management system 1000 shown in FIG. 1 includes a plurality of measuring devices 1, an information terminal 3, and a server 2 (output device).

[0025] A plurality of facilities 100, such as a plant or factory, equipped with a steam piping system are each provided with a plurality of steam traps at appropriate locations in the steam piping system. A measuring device 1 is permanently installed in the steam trap provided in the facility 100. The measuring device 1 includes a communication unit 11, a control unit 12, a memory 13, and a measuring unit 14.

[0026] Measurement unit 14 is, for example, a sensor that detects the vibration and temperature of the steam trap where measurement device 1 is installed. Measurement unit 14 measures the vibration and temperature of the steam trap where measurement device 1 is installed periodically, for example, once a day. Measurement unit 14 stores in memory 13 the date and time when the vibration and temperature of the steam trap where measurement device 1 is installed (hereinafter, measurement date and time) in association with the measured values ​​of the vibration and temperature of the steam trap where measurement device 1 is installed.

[0027] Memory 13 is a storage device capable of storing various types of information, such as a random access memory (RAM), a solid state drive (SSD), or a flash memory. Memory 13 sequentially stores the measurement date and time and the measurement values ​​of the vibration and temperature of the steam trap measured by measurement unit 14.

[0028] Control unit 12 is, for example, a microcontroller equipped with a CPU, and periodically, for example, once a day, reads multiple measurement dates and times and measurement values ​​from memory 13 and creates multiple pieces of measurement information including each of the read multiple measurement dates and times and measurement values. Each piece of measurement information includes a facility ID for identifying facility 100 that has a steam trap where measurement device 1 is installed, a trap ID for identifying the steam trap, and each of the read measurement dates and times and measurement values. Control unit 12 outputs the created multiple pieces of measurement information to communication unit 11.

[0029] The communication unit 11 is a communication circuit compatible with any communication method such as IP. The communication unit 11 periodically transmits a plurality of pieces of measurement information created by the control unit 12 to the server 2 via the network 4, such as once a day. The network 4 is, for example, the Internet.

[0030] Information terminal 3 is, for example, a smartphone, tablet computer, or personal computer, and is used by an administrator of steam trap management system 1000 (hereinafter, referred to as administrator) who has the authority to access server 2. Information terminal 3 includes a communication unit 31, a memory 33, a display unit 34, an operation unit 35, and a control unit 32.

[0031] The communication unit 31 is a communication circuit compatible with any communication method such as IP. The communication unit 31 transmits various pieces of information instructed by the control unit 32 to the server 2. The communication unit 31 outputs various pieces of information received from the server 2 to the control unit 32. The memory 33 is a storage device capable of storing various pieces of information, such as a RAM, an SSD, an HDD, or a flash memory.

[0032] The display unit 34 is, for example, a display device such as a liquid crystal display or an organic EL display, and displays information received by the communication unit 31 from the server 2 under the control of the control unit 32. This allows the administrator to view, on the information terminal 3, various pieces of information managed by the server 2.

[0033] The operation unit 35 is, for example, an input device such as a keyboard or a mouse that allows the administrator to input various pieces of information. The information input by the administrator using the operation unit 35 is output to the control unit 32. However, the display unit 34 and the operation unit 35 may be configured as an integrated unit by using a touch panel display.

[0034] The control unit 32 is, for example, a microcontroller equipped with a CPU, etc. The control unit 32 controls the display unit 34 to display information received by the communication unit 31. The control unit 32 also controls the communication unit 31 to transmit selection instruction information input by the administrator using the operation unit 35 to the server 2.

[0035] The multiple steam traps installed in the multiple facilities 100 are classified into steam traps of multiple structures. The multiple steam trap structures include multiple types of steam traps classified according to the valve opening and closing method. Each type of steam trap is classified into multiple models of steam traps according to the maximum condensate discharge amount. The processing target information is information that instructs the server 2 to accept any one facility 100 out of the multiple facilities 100, any one type out of the multiple types, and any one model out of the multiple models as the facility 100, type, and model to be processed.

[0036] Specifically, the processing target information includes a facility ID for identifying the facility 100 to be accepted by the server 2 as the facility 100 to be processed, a model ID for identifying the model to be accepted by the server 2 as the model to be processed, and a model ID for identifying the model to be accepted by the server 2 as the model to be processed. As a result, the server 2 that has received the processing target information can accept the facility 100, model, and model identified by the facility ID, model ID, and model ID included in the processing target information as the facility 100, model, and model to be processed.

[0037] The server 2 is, for example, a cloud server or a server device, and is communicably connected to a plurality of measurement devices 1 and an information terminal 3 via a network 4. The server 2 includes a communication unit 21, a memory 23, and a control unit 22.

[0038] The communication unit 21 is a communication circuit compatible with any communication method such as IP, and receives multiple pieces of measurement information transmitted by the measurement device 1. The communication unit 21 outputs the multiple pieces of measurement information received from the multiple measurement devices 1 to the control unit 22. The communication unit 21 outputs processing target information received from the information terminal 3 to the control unit 22. Under the control of the control unit 22, the communication unit 21 transmits first information and second information, which will be described later, to the information terminal 3.

[0039] The memory 23 is a storage device capable of storing various types of information, such as a RAM, an SSD, an HDD (Hard Disk Drive), or a flash memory.

[0040] Memory 23 pre-stores an equipment table that defines information about multiple steam traps at the installation locations of multiple measuring devices 1 provided in steam trap management system 1000. The equipment table is a table that associates a trap ID for identifying a steam trap, a facility ID for identifying the facility 100 in which the steam trap is installed, and structural information that indicates the structure of the steam trap. The structural information includes a model ID for identifying the type of steam trap and a model ID for identifying the model of the steam trap.

[0041] The control unit 22 is, for example, a microcontroller (computer) including a CPU (Central Processing Unit, not shown) that executes predetermined processing, a non-volatile memory (not shown) such as an EEPROM that stores a predetermined control program (program), a RAM (Random Access Memory, not shown) that temporarily stores data, and peripheral circuits therefor. The control unit 22 executes predetermined processing by causing the CPU to execute the control program stored in the non-volatile memory.

[0042] Specifically, control unit 22 diagnoses the performance of the steam trap corresponding to each piece of measurement information based on the vibration and temperature measurement values ​​included in each piece of measurement information received by communication unit 21. The steam trap corresponding to the measurement information is the steam trap identified by the trap ID included in the measurement information.

[0043] For example, in diagnosing the performance of a steam trap, the control unit 22 converts the vibration measurement value included in the measurement information into the steam leakage rate of the steam trap using a predetermined conversion formula. In addition, in diagnosing the performance of a steam trap, the control unit 22 determines whether the steam trap is in a defective state based on whether the vibration measurement value included in the measurement information is equal to or greater than a predetermined threshold. The conversion formula and threshold are predetermined for each type and model of steam trap and are pre-stored in memory 23. When diagnosing a steam trap, the control unit 22 refers to the equipment table stored in memory 23 and acquires from memory 23 the conversion formula and threshold corresponding to the type and model of the steam trap.

[0044] When the control unit 22 diagnoses the performance of the steam trap corresponding to each piece of measurement information, it creates diagnosis result information that indicates the diagnosis result of the steam trap's performance. The diagnosis result information includes the measurement information used to diagnose the steam trap's performance and an index (hereinafter, performance index) that represents the steam trap's performance obtained by diagnosing the steam trap's performance. The steam trap performance index includes, for example, the measured value of the steam trap's vibration used to diagnose the steam trap, the amount of steam leakage from the steam trap, and the determination result of whether the steam trap is in a defective state.

[0045] The control unit 22 outputs the created diagnostic result information to the memory 23. The memory 23 stores the diagnostic result information acquired from the control unit 22.

[0046] When the communication unit 21 receives processing target information from the information terminal 3, the control unit 22 accepts the facility 100, steam trap type, and steam trap model corresponding to the facility ID, type ID, and model ID included in the processing target information as the facility 100, type, and model to be processed. Hereinafter, the facility 100 to be processed will be referred to as the target facility, the type to be processed will be referred to as the target type, and the model to be processed will be referred to as the target model.

[0047] Control unit 22 generates a first transition, which is a temporal transition of the performance index of a steam trap of a target type and model in a target facility, based on multiple pieces of diagnostic result information (hereinafter, historical information) that indicate the history of diagnostic results for the performance of each of the multiple steam traps stored in memory 23. Hereinafter, the steam trap of the target type and model will be referred to as the target trap.

[0048] Specifically, the control unit 22 refers to the device table stored in the memory 23 and acquires, from the history information, a plurality of pieces of diagnostic result information indicating the results of diagnosing the performance of the target traps installed in the target facility. The control unit 22 refers to the acquired plurality of pieces of diagnostic result information and calculates an average value of the performance index (e.g., vibration measurement value) of the target trap for each measurement date and time. The control unit 22 generates a first transition by arranging the calculated average values ​​in order of measurement date and time.

[0049] Note that the method of generating the first transition by the control unit 22 is not limited to this. For example, the control unit 22 may refer to the acquired multiple pieces of diagnostic result information, acquire the median value of the performance index of the target trap for each measurement date and time, and generate the first transition by arranging the acquired median values ​​in order of measurement date and time. Alternatively, the control unit 22 may refer to the acquired multiple pieces of diagnostic result information, acquire the maximum or minimum value of the performance index of the target trap for each measurement date and time, and generate the first transition by arranging the acquired maximum or minimum values ​​in order of measurement date and time. Alternatively, the control unit 22 may calculate (acquire) the average or median value and maximum or minimum value of the performance index of the target trap for each measurement date and time, and generate the first transition by arranging the calculated (acquired) average or median value and maximum or minimum value in order of measurement date and time.

[0050] Based on the history information, the control unit 22 generates a second trend which is a time trend in the number of target traps diagnosed as being in a defective state in the target facility.

[0051] Specifically, the control unit 22 references the device table stored in the memory 23 and acquires, from the history information, multiple pieces of diagnostic result information indicating the results of diagnosing the performance of the target traps installed in the target facility. The control unit 22 references the measurement information included in the multiple pieces of diagnostic result information acquired and acquires, for each measurement date and time, diagnostic result information including a determination result indicating that the target trap is in a defective state. The control unit 22 counts the number of target traps corresponding to the acquired diagnostic result information. The target trap corresponding to the diagnostic result information is the target trap whose performance diagnosis result is indicated by the diagnostic result information. The control unit 22 generates a second transition by arranging the counted numbers of target traps in order of measurement date and time.

[0052] When counting the number of target traps, the control unit 22 counts the same target trap as 1. Furthermore, the control unit 22 does not count the same target trap that was counted when counting the number of target traps for a certain measurement date and time as a target trap corresponding to the diagnosis result information for another measurement date and time.

[0053] However, this is not limiting, and the control unit 22 may count the same target traps that were counted when counting the number of target traps for a certain measurement date and time as target traps corresponding to the diagnosis result information for other measurement dates and times. In this case, the second transition indicates the transition over time of the cumulative number of target traps diagnosed as being in a defective state in the target facility.

[0054] Note that the processing target information may not include a model ID. This may cause the control unit 22 to select the facility 100 and type identified by the facility ID and type ID included in the processing target information as the target facility and type. The control unit 22 may then generate a first transition, a second transition, and a first reference transition, estimate a second reference transition, and generate a first average transition and a second average transition, using a steam trap of the target type in the target facility as the target trap.

[0055] The control unit 22 controls the communication unit 21 to transmit, to the information terminal 3, the first information including the first transition and the second information including the second transition.

[0056] Although steam trap management system 1000 in this embodiment includes multiple measurement devices 1, server 2, and information terminal 3, the present disclosure is not limited to this. Steam trap management system 1000 may include multiple measurement devices 1 and information terminal 3 without including server 2. In this case, information terminal 3 has the functions of server 2.

[0057] Next, the output process of the server 2 according to the embodiment of the present disclosure will be described.

[0058] First, in step S10, the communication unit 21 outputs the received measurement information to the control unit 22 every time the communication unit 21 receives measurement information transmitted by the measurement device 1.

[0059] Next, in step S11, the control unit 22 diagnoses the performance of the steam trap corresponding to each piece of measurement information based on the vibration and temperature measurement values ​​included in each piece of measurement information received by the communication unit 21.

[0060] Next, in step S12, control unit 22 creates diagnostic result information indicating the diagnostic results of the performance of the steam trap corresponding to each piece of measurement information, and outputs each piece of created diagnostic result information to memory 23. Memory 23 stores each piece of diagnostic result information acquired from control unit 22.

[0061] Next, in step S13, control unit 22 determines whether communication unit 21 has received the processing target information from information terminal 3. If control unit 22 determines that communication unit 21 has received the processing target information from information terminal 3 (YES in step S13), control unit 22 shifts the processing to step S14. On the other hand, if control unit 22 does not determine that communication unit 21 has received the processing target information from information terminal 3 (NO in step S13), control unit 22 shifts the processing to step S10.

[0062] In step S14, the control unit 22 accepts the facility 100, steam trap type, and steam trap model corresponding to the facility ID, type ID, and model ID contained in the processing target information received by the communication unit 21 from the information terminal 3 as the facility 100 to be processed (target facility), type to be processed (target type), and model to be processed (target model).

[0063] Next, in step S15, the control unit 22 generates a first trend, which is the temporal trend of the performance index of the target trap, which is a steam trap of the target type and model in the target facility, based on the historical information stored in the memory 23.

[0064] Next, in step S16, the control unit 22 generates a second trend, which is the time trend of the number of target traps diagnosed as being in a defective state in the target facility, based on the history information.

[0065] Next, in step S17, the control unit 22 controls the communication unit 21 to transmit the first information including the first transition and the second information including the second transition to the information terminal 3, and then the process proceeds to step S10. In the information terminal 3, when the communication unit 31 receives the first information and the second information from the server 2, the display unit 34, under the control of the control unit 32, displays an image including the first information and the second information received by the communication unit 31 from the server 2 (hereinafter, a report image).

[0066] 3 is a diagram showing an example of the first information F1 and the second information F2. Fig. 3 shows an example in which, after processing target information including a facility ID "Factory A," a type ID "I," and a model ID "M1" is transmitted from the information terminal 3 to the server 2, the communication unit 31 receives the first information F1 and the second information F2 from the server 2, and the display unit 34 displays a report image R1 including the first information F1 and the second information F2.

[0067] The first information F1 includes an area T11 that indicates the title of the first information F1, and an area A11 that displays a graph that indicates a first transition G11 included in the first information F1.

[0068] The first transition G11 shows the time transition of the vibration measurement value ("vibration value"), which is a performance index of the target trap of the target type "I" and the target model "M1" in the target facility "Factory A."

[0069] The second information F2 includes an area T21 showing the title of the second information F2, and an area A21 displaying a graph showing the second transition G21 included in the second information F2.

[0070] The second trend G21 shows the time trend of the number of target traps of target type "I" and target model "M1" that have been diagnosed as being in a defective state at the target facility "Factory A."

[0071] In this case, by comparing the first information F1 and the second information F2, the administrator can understand how the number of target traps diagnosed as being in a defective state increases or decreases over time when the vibration measurement values ​​of the target traps change over time.

[0072] In this way, this display example makes it possible to grasp the relationship between the performance of the steam traps of the target type "I" and the target model "M1" in the target facility "Factory A" and the time transition of the number of units diagnosed as defective. Therefore, this display example can support appropriate planning of the replacement timing and number of replacement steam traps of the target type "I" and the target model "M1" in the target facility "Factory A".

[0073] 4 is a diagram showing another example of the first information F1 and the second information F2. Fig. 4 shows an example in which the display unit 34 displays a report image R1 when the communication unit 31 receives the first information F1 and the second information F2 from the server 2 after the information terminal 3 transmits processing target information including the facility ID "Factory B," the type ID "I," and the model ID "M1" to the server 2.

[0074] In this display example, a graph showing a first transition G31 is displayed in area A11 of first information F1. The first transition G31 shows the time transition of the measured vibration value, which is a performance index of the target trap of target type "I" and target model "M1" in the target facility "Factory B."

[0075] A graph showing a second trend G41 is displayed in area A21 of the second information F2. The second trend G41 shows the change over time in the number of target traps of target type "I" and target model "M1" that have been diagnosed as being in a defective state at the target facility "Factory B."

[0076] In this case, by comparing the first information F1 and the second information F2, the administrator can understand how the number of target traps diagnosed as being in a defective state increases or decreases over time when the vibration measurement values ​​of the target traps change over time.

[0077] This display example makes it possible to grasp the relationship between the performance of the steam traps of the target type "I" and the target model "M1" in the target facility "Factory B" and the time transition of the number of units diagnosed as defective. Therefore, this display example can support appropriate planning of the replacement timing and number of replacement steam traps of the target type "I" and the target model "M1" in the target facility "Factory B". [Explanation of symbols]

[0078] 2: Server (output device) 22: Control unit (computer) 100: Facilities F1: First information F2:Second information G11, G31: 1st transition G21, G41: Second transition

Claims

1. An output method for an output device that outputs information about a plurality of steam traps installed in a plurality of facilities, comprising: The plurality of steam traps are classified into steam traps of a plurality of structures, acquiring historical information indicating a history of diagnostic results of the performance of each of the plurality of steam traps; Accept information indicating the target facility and target structure, generating a first transition that is a time transition of a performance index of a target trap that is a steam trap of the target structure in the target facility and a second transition that is a time transition of the number of the target traps diagnosed as being in a defective state in the target facility based on the history information; outputting first information including the first transition and second information including the second transition; Output method.

2. The steam traps of the plurality of structures include steam traps of a plurality of types classified according to valve opening and closing methods, The information indicating the structure of the target is information indicating any one of the plurality of types. The output method according to claim 1 .

3. Each type of steam trap is classified into several models depending on the maximum condensate discharge capacity. The information indicating the structure of the target further includes information indicating any one of the plurality of models. The output method according to claim 2 .

4. the performance index is a measurement of vibration of the target trap; The output method according to claim 1 .

5. An output device that outputs information about a plurality of steam traps installed in a plurality of facilities, The plurality of steam traps are classified into steam traps of a plurality of structures, A computer is provided. The computer acquiring historical information indicating a history of diagnostic results of the performance of each of the plurality of steam traps; Accept information indicating the target facility and target structure, generating a first transition that is a time transition of a performance index of a target trap that is a steam trap of the target structure in the target facility and a second transition that is a time transition of the number of the target traps diagnosed as being in a defective state in the target facility based on the history information; outputting first information including the first transition and second information including the second transition; Output device.

6. A program for an output device that outputs information about a plurality of steam traps installed in a plurality of facilities, The plurality of steam traps are classified into steam traps of a plurality of structures, The output device acquiring historical information indicating a history of diagnostic results of the performance of each of the plurality of steam traps; Accept information indicating the target facility and target structure, generating a first transition that is a time transition of a performance index of a target trap that is a steam trap of the target structure in the target facility and a second transition that is a time transition of the number of the target traps diagnosed as being in a defective state in the target facility based on the history information; outputting first information including the first transition and second information including the second transition; A program that executes the process as follows.

Images