JP6799594B2 - Selective catalytic reduction system management device and its control method - Google Patents

Description

An embodiment of the present invention relates to a selective catalytic reduction system management device and a control method thereof, and more particularly to a selective catalytic reduction system management device for reducing nitrogen oxides contained in exhaust gas and a control method thereof.

In general, a system equipped with a power unit that burns fuel to produce power emits exhaust gas. Such exhaust gas contains nitrogen oxides. The above-mentioned system is a selective catalytic reduction system that reduces nitrogen oxides contained in exhaust gas and discharges them to the outside.

In the selective catalytic reduction system, the exhaust gas is injected with a reducing agent containing urea or ammonia, and the exhaust gas mixed with the injected reducing agent passes through the catalyst to cause nitrogen and water vapor (or water). It is converted to and discharged to the outside.

However, if the system that emits exhaust gas is a ship, if an abnormality occurs in the selective catalytic reduction system on a ship under voyage, it is necessary to berth on land for repair or countermeasures, and it takes a lot of time. There is a problem that it takes.

In addition, nitrogen oxides contained in the exhaust gas are not reduced and are discharged to the outside as they are due to an abnormality in the selective catalytic reduction system without a specialist for maintenance of the selective catalytic reduction system on board. In this case, there is a problem not only of environmental pollution but also of the possibility of causing an international conflict when passing through the air pollutant release restricted sea area.

An embodiment of the present invention provides a selective catalytic reduction system management device and a control method thereof, which presents anomalous information generated in the selective catalytic reduction system and a solution for solving the abnormality information.

式中、Ｗ _ｌ （ｉ＋１）は、補正加重値、Ｗ _ｌ （ｉ）は、以前加重値（又は、基本加重値）、Ｃ _ｌ は、解決案として選択された累積回数、Ｃ _ｓｕｍ は、当該異常情報に対する全累積回数である。 According to one aspect of the invention, the selective catalytic reduction system management device is one of the exhaust gas temperature, nitrogen oxide concentration, internal pressure of the reactor in which the catalyst is installed, reducing agent injection device, and valve operation. A detection unit that detects abnormality information of the selective catalytic reduction system including any one or more, a manual database in which manual data of the selective catalytic reduction system is stored in advance, and an abnormality cause related to the abnormality information are stored. The abnormal cause is derived by matching the abnormal information detected by the detection unit with the diagnostic data , including the diagnostic data and the solution data in which a plurality of solutions for solving the abnormal cause are stored. Further, a control unit that matches the abnormality cause and the solution data to derive the solution , outputs the abnormality information and the abnormality cause transmitted from the control unit , or searches information from the user. Is provided and a display unit for outputting the manual data is provided , and the control unit assigns a correction weight value to the solution used for solving the cause of the abnormality among the plurality of stored solutions. Then, information is transmitted to the display unit so as to output the derived solution, and among the plurality of solutions, the solution having a history of solving the cause of the abnormality is preferentially displayed. Information is transmitted to the display unit, and the correction weight value is calculated by the following formula .

In the formula, W _l (i + 1) is the correction weighted value, W _l (i) is the previously weighted value (or the basic weighted value), _Cl is the cumulative number of times selected as the solution, and C _sum is the relevant value. The total cumulative number of abnormal information.

Further, the control unit further includes solution data in which a plurality of solutions for solving the abnormality cause are stored, matches the abnormality cause with the solution data, derives the solution, and displays the solution on the display unit. to transmit.

The control unit transmits information to the display unit so that the suggested solutions with history of solving the abnormality cause of the plurality of the suggested solutions is preferentially displayed.

Further, the control unit further includes the component information data in which the component information of the selective catalyst reduction system is stored, determines whether or not the component has been replaced in the solution, and the component is replaced. If so, the part information data of the replaced part may be updated.

Further, when the control unit outputs the solution or the abnormality information to the display unit, the updated component information data may be output together.

Further, when the display unit outputs the abnormality information and the abnormality cause, the image information may be provided together.

式中、Ｗ _ｌ （ｉ＋１）は、補正加重値、Ｗ _ｌ （ｉ）は、以前加重値（又は、基本加重値）、Ｃ _ｌ は、解決案として選択された累積回数、Ｃ _ｓｕｍ は、当該異常情報に対する全累積回数である。 According to another aspect of the present invention, the control method of the selective catalytic reduction system management device is the temperature of the exhaust gas, the concentration of nitrogen oxides, the internal pressure of the reactor in which the catalyst is installed, the reducing agent injection device, and the valve. A step of detecting abnormality information of the selective catalytic reduction system including any one or more of the operations and determining whether or not the abnormality is present, and a step of deriving a candidate for the cause of the abnormality related to the abnormality information. The step of diagnosing an abnormality for each candidate for the cause of the abnormality and deriving a promising cause of the abnormality from the candidate for the cause of the abnormality, and the solution data in which a plurality of solutions for solving the cause of the abnormality are stored. A step of deriving and presenting a solution for solving the abnormal cause by matching with the abnormal cause, and a step of determining whether or not the abnormal cause derived by the presented solution has been solved. When the same cause of abnormality is derived, the solution having a history of solving the cause of abnormality is preferentially presented. Therefore, among the plurality of solutions, the cause of abnormality that has been derived is solved. look including the step of applying the correction weight to the suggested solutions, the step of applying the correction weight value, calculates the correction weight in the following equation.

In the equation, W _l (i + 1) is the correction weighted value, W _l (i) is the previously weighted value (or the basic weighted value), _Cl is the cumulative number of times selected as the solution, and C _sum is the relevant value. The total cumulative number of abnormal information.

Further, the control method of the selective catalytic reduction system management device described above may further include a step of giving a weighted value to the solution that solves the derived abnormal cause among the plurality of solutions.

Further, in the control method of the selective catalytic reduction system management device described above, when it is determined that there is no abnormality in the selective catalytic reduction system, the user inputs a search for the abnormality information of the selective catalytic reduction system. It may further include a step of guiding the detailed information appearing at the time of detecting the input abnormality information, and a step of guiding the solution to solve the input abnormality information.

In addition, at least one of the abnormality information and the solution may provide image information together so that the user can visually recognize it.

Further, the control method of the selective catalytic reduction system management device described above includes a step of determining whether or not to replace the component in order to solve the derived cause of the abnormality, and a determination that the component has been replaced. If so, it may further include a step of storing the information of the replaced part.

According to the embodiment of the present invention, the selective catalytic reduction system management device and the control method thereof according to the present invention can present a solution to the abnormal information generated in the selective catalytic reduction system. Even a user who does not have it can effectively solve the abnormality generated in the selective catalytic reduction system.

It is a block diagram which shows the selective catalytic reduction system management apparatus which concerns on one Embodiment of this invention. It is a figure which shows the output form of the display part in FIG. It is a figure which shows the output form of the display part in FIG. It is a figure which shows the output form of the display part in FIG. It is a flowchart which shows the control procedure of the selective catalytic reduction system management apparatus which concerns on other embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those having ordinary knowledge in the technical field to which the present invention belongs can easily carry out the embodiments. The present invention can be implemented with various modifications, and is not limited to the examples described later.

It should be noted that the drawings are shown schematically and are not shown to scale. The relative dimensions and ratios of the parts shown in the drawings are exaggerated or reduced in size for clarity and convenience of the drawings, and any dimensions are for illustration purposes only and are limited. It's not something like that. Further, elements or parts having the same structure shown in two or more drawings are designated by the same reference numerals in order to show similar characteristics.

An embodiment of the present invention specifically illustrates a preferred example of the present invention. Therefore, it is expected to be illustrated in various ways. Therefore, the embodiment is not limited to the specific form of the illustrated region, and includes, for example, modification of the form by manufacturing.

Hereinafter, the failure management device 101 of the selective catalyst reduction system according to the embodiment of the present invention will be described with reference to FIGS. 1 to 4.

As shown in FIG. 1, the management device 101 of the selective catalytic reduction system according to the embodiment of the present invention includes a detection unit 100, a control unit 200, and a display unit 300.

The detection unit 100 detects abnormality information of the selective catalytic reduction system. Specifically, the detection unit 100 determines the temperature of the exhaust gas, the concentration of nitrogen oxides, the internal pressure of the reactor in which the catalyst is installed, the reducing agent injection device, and the presence / absence of operation of various valves in a selective catalytic reduction system (not shown). The current information value and the like can be detected.

The control unit 200 includes diagnostic data 210. Specifically, the diagnostic data 210 is an existing stored database (DB) used by the control unit 200 when determining whether or not the information detected by the detection unit 100 is in an abnormal state. That is, the diagnostic data 210 includes information in a normal range in which an abnormality can be determined. Further, the diagnostic data 210 stores the cause of the abnormality according to the abnormality information.

Therefore, the control unit 200 diagnoses whether or not the information value detected by the detection unit 100 is abnormal by comparing the abnormality information detected by the detection unit 100 with the information stored in the diagnostic data 210. , Derive the cause of the diagnosed abnormality.

That is, the control unit 200 diagnoses whether or not the abnormality is present, and derives the cause of the abnormality that is matched with the diagnosed abnormality. Specifically, the control unit 200 matches the abnormality information detected by the detection unit 100 with the diagnostic data 210, and derives the abnormality cause corresponding to the currently detected abnormality information.

The display unit 300 outputs the abnormality information and the cause of the abnormality transmitted from the control unit 200. Specifically, the display unit 300 can output the abnormality information so that the user (worker, manager) can visually recognize the abnormality information. That is, the user can effectively recognize the abnormality information generated in the selective catalyst reduction system and the cause thereof by the display unit 300 that outputs the abnormality information and the cause of the abnormality.

In addition, the control unit 200 according to the embodiment of the present invention can further include the solution data 220. The resolution data 220 is an existing stored database (DB) including a plurality of solutions for solving the cause of the abnormality matched with the abnormality information. Specifically, the solution data 220 includes information on a solution proposed from an expert in each field in order to solve an abnormality such as a malfunction or failure of each component.

The control unit 200 can match the cause of the abnormality with the solution data 220 to derive a plurality of solutions suitable for solving the current cause of the abnormality and transmit the solution to the display unit 300.

That is, the control unit 200 can present to the user, among the plurality of solutions stored in the solution data 220, a solution necessary for solving the cause of the abnormality that has occurred at present through the display unit 300.

Therefore, the user can select and carry out any one of the plurality of solutions output through the display unit 300. That is, even a user who does not have specialized knowledge or experience regarding the selective catalytic reduction system can solve the abnormality in the selective catalytic reduction system based on the solution proposed through the display unit 300.

Further, in the case of a ship, when an abnormality occurs in the selective catalytic reduction system, the user should effectively resolve the abnormality based on the solution proposed by the display unit 300 before anchoring the ship. Can be done.

Further, the control unit 200 of the failure management device 101 of the selective catalyst reduction system according to the embodiment of the present invention preferentially displays the solution having a history of solving the cause of the abnormality among the plurality of solutions. Information can be transmitted to the display unit 300 as described above.

When transmitting information so that the control unit 200 outputs a solution according to the cause of the abnormality to the display unit 300, the control unit 200 has a history of being selected and used to solve the same cause of the abnormality among a plurality of solutions. If there is a certain solution, the information can be transmitted to the display unit 300 so that it is output with priority.

Specifically, the control unit 200 can update the solution data 220 based on the information of the solution proposed selected and used to solve the abnormality according to the cause of the abnormality. The control unit 200 gives a weighted value to the solution used to solve the cause of the abnormality among the plurality of stored solutions, and when the same cause of the abnormality is derived, the same abnormality is sent to the user. Priority can be given to a historical solution that has been used to resolve the cause.

That is, the control unit 200 can be updated by storing the solution proposed and used to solve the cause of the abnormality and re-storing the information of the solution data 220.

Therefore, a weighted value is given by the control unit 200, and the solution that has been used to solve the same abnormality cause is preferentially output to the display unit 300, so that the user can output the same abnormality cause. In order to solve the problem, it is possible to give priority to the verified solution. Therefore, the user can perform the management work without repeating trial and error in order to solve the same cause of abnormality.

Specifically, the weighted value of such a solution can be given by using the following mathematical formula (1).

In the equation, W _l (i + 1) is the correction weighted value, W _l (i) is the previously weighted value (or the basic weighted value), _Cl is the cumulative number of times selected as the solution, and C _sum is the relevant value. The total cumulative number of abnormal information.

Further, the control unit 200 according to the embodiment of the present invention can further include the component information data 230 in which the component information of the selective catalytic reduction system is stored.

The component information data 230 can be a database (DB) in which component information of the selective catalytic reduction system is stored. Specifically, the component information of the selective catalytic reduction system includes any one of the manufacturing model, installation date, manufacturer and performance information (spec) of the component provided in the selective catalytic reduction system. Can be done. For example, the component information data 230 can include any one of component information of a reducing agent injection nozzle, a soot blower, a reducing agent injection device, or a detection unit 100 such as a sensor.

When the replacement of parts is presented in the solution, the control unit 200 can determine whether or not to replace the parts. That is, the control unit 200 can determine whether or not the parts have been replaced, and can update the component information of the replaced parts. Therefore, the control unit 200 can reset the replacement date and the like of the replaced parts, and thereafter, the user can effectively confirm the history and the usage cycle of the replaced parts.

Further, when the control unit 200 of the selective catalyst reduction system management device 101 according to the embodiment of the present invention transmits abnormality information, an abnormality cause, or a solution, such updated part information data 230 Can be output to the display unit 300 together.

Therefore, the user can effectively predict the number of parts, the replacement cycle, and the like for managing the selective catalytic reduction system based on the updated part information data 230.

Further, the display unit 300 in one embodiment of the present invention can provide image information together.

As shown in FIG. 2, the display unit 300 can display the position where the abnormality information is detected, various alarms according to the abnormality information, and the like. Further, the display unit 300 can display the abnormality information in various colors according to the warning level so that the user can recognize it. As an example, an error code corresponding to the abnormal information or the date of occurrence of the abnormal information can be displayed.

As shown in FIG. 3, the display unit 300 can provide the user with a photograph (configuration diagram) or a moving image of the position of the abnormality cause or an explanation about the abnormality cause when outputting the abnormality cause. Therefore, even a user who does not have specialized knowledge can grasp the cause of such an abnormality or the details of the cause of the abnormality.

As shown in FIG. 4, the display unit 300 provides an assembly diagram necessary for attaching / detaching parts for solving the cause of abnormality, or a solution for solving the cause of abnormality, when outputting the solution. It can be provided to users together as a video.

In addition, the control unit 200 can further include a manual database (DB) in which manual data 240 of the selective catalytic reduction system in general is stored. Specifically, such manual data 240 can be output to the display unit 300. The display unit 300 is a touch screen type, and the user can search for information using the touch screen type, or the display unit 300 includes a zoom-in / out function and can be selected by the user.

Therefore, the user can search various information about the selective catalytic reduction system as needed, regardless of the presence or absence of abnormalities in the selective catalytic reduction system, based on the manual database (DB). Further, such information can be output to the display unit 300 together with the image information in the same manner as the solution.

With the above-described configuration, the management device 101 of the selective catalytic reduction system according to the embodiment of the present invention can effectively solve the abnormality even by a user who does not have specialized knowledge and skills. ..

Hereinafter, a control method of the selective catalytic reduction system management device according to another embodiment of the present invention will be described with reference to FIGS. 1 and 5.
The selective catalytic reduction system management device described later has the same configuration as the selective catalytic reduction system management device 101 described above.

The user implements the control method of the selective catalytic reduction system management device.
The abnormality information of the selective catalytic reduction system is detected, and it is determined whether or not the abnormality has occurred (S100). In other words, abnormal information regarding whether or not a problem has occurred in the operation of the selective catalytic reduction system is detected, and whether or not the value of the detected abnormal information is in an abnormal state is determined.

When it is determined that there is an abnormality based on the abnormality information, a candidate for the cause of the abnormality that can cause the abnormality information is derived according to the detected abnormality information (S200). In other words, for one abnormality information, a plurality of candidates for the cause of the abnormality that can cause the abnormality information are derived. Therefore, the control unit can derive a plurality of candidates for the cause of the abnormality according to the abnormality information. That is, it is possible to effectively solve the abnormality caused by various causes.

Further, the control unit calculates the abnormality occurrence probability for each abnormality cause candidate through the fuzzy diagnosis algorithm for each of various abnormality cause candidates (S300).

Based on the probabilities calculated through the algorithm as described above, the most promising anomaly cause is derived from the anomaly cause candidates (S400). In other words, the cause of the anomaly matched with the currently detected anomaly information with the highest probability is derived. For example, the most probable cause of abnormality, the symptom of the part, and the like can be notified to the user through the display unit.

A solution plan for solving the derived cause of abnormality is presented (S500). Specifically, the control unit is derived from a database (DB) in which various solutions for solving the derived anomaly cause are stored, and the optimally matched solution for solving the anomaly cause is derived. To the user. The solution presented at the initial stage can be selected and presented based on the default value.

It is determined whether or not the derived cause of abnormality has been resolved (S600). If the derived abnormal cause has not been solved, another solution can be selected and executed from the plurality of presented solutions (S500).

The control unit assigns a weighted value to the solution that solves the derived abnormal cause (S700). In other words, when the solution selected for the solution of the derived anomaly cause is subsequently derived as the same anomaly cause among the plurality of solutions, the above-mentioned solution is presented (S500). At that time, this is given priority and output to the display unit.

It is determined whether or not the parts have been replaced in order to solve the derived cause of abnormality (S800).
When it is determined that the parts have been replaced, the information on the replaced parts is stored (S900). In other words, the component information of the selective catalytic reduction system is updated. Specifically, the control unit can calculate and store the replacement date of the replaced part by inputting the part information from the user or through a timer provided in the selective catalyst reduction system.

When it is determined that there is no abnormality based on the abnormality information, the user inputs a search term for the abnormality information of the selective catalytic reduction system (S250). Specifically, the user can search for abnormal information even when the selective catalytic reduction system is operating normally.

According to the input abnormal information, the abnormal symptom that may occur when the abnormal information is detected is output in detail to the display unit, and the user is guided so that the user can recognize it (S260).
In addition, the user is guided so that the solution plan for solving the input abnormal information can be recognized by the user (S270).

When outputting at least one of abnormality information, abnormality cause, solution, etc. to the user through the display unit, image information can be provided together.
With such a configuration, in the control method of the selective catalytic reduction system management device according to another embodiment of the present invention, even a user who does not have specialized knowledge and skills can not only confirm the abnormality information but also have an abnormality. Can be effectively solved.

In addition, regardless of whether or not the abnormality information is detected, the user can search for the abnormality of the selective catalytic reduction system and effectively recognize and learn the symptom associated therewith.

Although the present invention has been described above with reference to the accompanying drawings, those skilled in the art to which the present invention belongs can be variously modified without changing the technical idea and essential elements of the present invention. It can be understood that it can be carried out.

Therefore, the above-described embodiment is merely an example and is not a limitation, and the scope of the present invention is indicated by the appended claims, the meaning and scope of the claims, and the equivalent concept thereof. All modifications or modifications derived from are to be construed as being included in the scope of the invention.

The embodiment of the present invention can be applied to a selective catalytic reduction system management device and a control method thereof, which presents anomalous information generated in the selective catalytic reduction system and a solution for solving the abnormality information.

100 Detection unit 101 Selective catalytic reduction system management device 200 Control unit 210 Diagnostic data 220 Resolution data 230 Part information data 300 Display unit

Claims (8)

It is a selective catalytic reduction system management device.
Abnormality information of the selective catalytic reduction system, including one or more of the temperature of the exhaust gas, the concentration of nitrogen oxides, the internal pressure of the reactor in which the catalyst is installed, the reducing agent injection device, and the operation of the valve. The detector to detect and
Includes a manual database in which the manual data of the selective catalytic reduction system is stored in advance , diagnostic data in which the cause of the abnormality related to the abnormality information is stored , and solution data in which a plurality of solutions for solving the cause of the abnormality are stored. A control unit that matches the abnormality information detected by the detection unit with the diagnostic data to derive the abnormality cause, and further matches the abnormality cause with the solution data to derive the solution. ,
It is provided with a display unit that outputs the abnormality information and the cause of the abnormality transmitted from the control unit , or inputs search information from the user and outputs the manual data .
The control unit assigns a correction weight value to the solution used to solve the cause of the abnormality among the plurality of stored solutions, and outputs the derived solution to the display unit. In addition to transmitting information, information is transmitted to the display unit so that the solution having a history of solving the abnormality cause is preferentially displayed among the plurality of solutions, and further, the correction weighted value is transmitted. A selective catalytic reduction system management device that calculates the above using the following formula .

In the formula, W _l (i + 1) is the correction weighted value, W _l (i) is the previously weighted value (or the basic weighted value), _Cl is the cumulative number of times selected as the solution, and C _sum is the relevant value. The total cumulative number of abnormal information. The control unit further includes component information data in which component information of the selective catalytic reduction system is stored, determines whether or not the component has been replaced in the solution, and the component has been replaced. The selective catalytic reduction system management device according to claim 1 , wherein the component information data of the replaced component is updated. The selective catalytic reduction system management device according to claim 2 , wherein when the control unit outputs the solution or the abnormality information to the display unit, the updated component information data is also output. The selective catalytic reduction system according to any one of claims 1 to 3, wherein when the display unit outputs at least one of the abnormality information, the abnormality cause, and the solution, the image information is provided together. Management device. It is a control method of the selective catalytic reduction system management device.
Detects anomalous information in selective catalytic reduction systems, including exhaust gas temperature, nitrogen oxide concentration, internal pressure of the reactor in which the catalyst is installed, reducing agent injector, and one or more of valve operation. And the steps to determine if it is abnormal,
Steps to derive candidates for the cause of the abnormality related to the abnormality information, and
A step of diagnosing an abnormality for each candidate for the cause of the abnormality and deriving a promising cause of the abnormality from the candidate for the cause of the abnormality.
A step of deriving and presenting a solution for solving the abnormal cause by matching the solution data in which a plurality of solutions for solving the abnormal cause are stored with the derived abnormal cause .
A step of determining whether or not the cause of the abnormality derived by the presented solution has been resolved , and
The solution that solves the derived abnormal cause among the plurality of solutions so that the solution having a history of solving the abnormal cause is preferentially presented when the same abnormal cause is derived. and a step of applying a correction weight to draft only contains,
A control method of a selective catalytic reduction system management device in which the step of giving the correction weight value is to calculate the correction weight value by the following mathematical formula .

In the equation, W _l (i + 1) is the correction weighted value, W _l (i) is the previously weighted value (or the basic weighted value), _Cl is the cumulative number of times selected as the solution, and C _sum is the relevant value. The total cumulative number of abnormal information. When it is determined that there is no abnormality in the selective catalytic reduction system, a step in which the user inputs a search for abnormality information of the selective catalytic reduction system, and
A step to guide detailed information that appears when the input abnormal information is detected, and
The control method of the selective catalytic reduction system management device according to claim 5 , further comprising a step of guiding the solution to solve the input abnormal information. The control of the selective catalytic reduction system management apparatus according to claim 5 or 6 , wherein the anomaly information and at least one of the solutions are provided together with image information so that the user can visually recognize them. Method. A step of determining whether or not to replace a part in order to solve the derived cause of the abnormality, and
The control method for a selective catalytic reduction system management device according to claim 5 , further comprising a step of storing information on the replaced parts when it is determined that the parts have been replaced.

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