Pipeline tail end pressure monitoring system of rough rolling descaling system and monitoring method thereof

Abstract

The invention discloses a pipeline tail end pressure monitoring system of a rough rolling descaling system, which comprises a server, an interaction module, a pipeline tail end monitoring module, a fault reporting module, a positioning module and a plurality of mobile terminals, and is characterized in that the server is respectively connected with the pipeline tail end monitoring module, the fault reporting module, the positioning module and each mobile terminal, each mobile terminal is used for being connected with the server so as to carry out information inquiry and fault repair on the tail end of the pipeline, and meanwhile, the invention further provides a corresponding monitoring method. The system can monitor the final descaling pressure of each water terminal, achieves the comprehensive monitoring of the state of a rough rolling descaling system, guarantees the stable and reliable descaling effect, greatly improves the surface quality of strip steel, reduces the defective rate, improves the production efficiency, prolongs the service life of equipment, and reduces the fault and maintenance cost of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of hot rolling and rough rolling production, and in particular to a pipeline end pressure monitoring system and a monitoring method thereof for a rough rolling descaling system. Background Art

[0002] Hot rolling of steel billets usually includes rough rolling and finish rolling. During the rough rolling process, due to the high temperature of the steel billet, its surface easily reacts with oxygen in the air to form iron oxide scale, which is usually called scale. This scale will be pressed into the surface of the final product by the roller during the rolling process, thereby reducing the surface quality of the product.

[0003] In order to solve this problem, it is usually necessary to remove the scale on the surface of the steel billet before rolling.

[0004] In recent years, a method of descaling using high-pressure water has been developed. The simple mechanism of high-pressure water descaling is as follows: After the billet is taken out of the heating furnace, high-pressure water is used to spray the surface of the oxidized iron scale, and the surface of the oxidized iron scale is locally rapidly cooled, resulting in large shrinkage and stress, thereby causing the oxidized iron scale to crack and separate from the billet. After the impact of the high-pressure water flow, the oxidized iron scale peels off from the surface of the billet, achieving the purpose of removing the oxidized iron scale. This is the descaling and cooling device that exists in the rough rolling process, but due to the limited water volume of the descaling and cooling device, it is often unable to meet the production rhythm of the rolling line, resulting in technical problems such as poor descaling and cooling effect and low rolling line production efficiency.

[0005] In order to solve the above problems, abnormalities in the descaling system are often discovered through personnel inspections and spot checks, but the abnormalities are often difficult to detect or are not discovered in time. There are also alarm monitoring through descaling interlocking conditions. For example, the patent document with application number CN202010659966.1 discloses a method and device for rough rolling descaling and cooling, which controls the production rhythm so that the water consumption of the descaling and cooling device matches the production rhythm. However, there is also a monitoring blind spot where the interlocking conditions are met but there is no water or insufficient pressure in the actual descaling water, and comprehensive monitoring of the descaling system abnormalities cannot be achieved, which still leads to quality problems. Summary of the invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a pipeline end pressure monitoring system for a rough rolling descaling system, which can monitor the descaling pressure at each final water end, realize comprehensive monitoring of the state of the rough rolling descaling system, ensure stable and reliable descaling effect, greatly improve the surface quality of the strip, reduce the defective rate, improve production efficiency, and at the same time extend the service life of the equipment and reduce equipment failures and maintenance costs.

[0007] The present invention also provides a monitoring method for a pipeline end pressure monitoring system applied to the above-mentioned rough rolling descaling system.

[0008] According to the first aspect of the present invention, the pipeline end pressure monitoring system of the rough rolling descaling system includes a server, an interaction module, a pipeline end monitoring module, a fault reporting module, a positioning module, and a plurality of mobile terminals, wherein the server is respectively connected to the pipeline end monitoring module, the fault reporting module, the positioning module, and each mobile terminal, wherein each mobile terminal is used to connect to the server to query information and report faults on the pipeline end;

[0009] The positioning module is used to locate the distribution position of each pipeline end of the descaling system, the pipeline end monitoring module is used to monitor the operating status of each pipeline end, the fault reporting module is used to report the fault of the pipeline end, and the interactive module is used to interact with the maintenance personnel according to the data of the fault reporting module;

[0010] The pipeline end monitoring module includes a pipeline end working detection unit, a timing unit, and an evaluation unit. The pipeline end working detection unit detects the operating state of the device, the timing unit times the working equivalent time of the device, and the evaluation unit analyzes the use state of the pipeline end according to the data of the pipeline end working detection unit and the timing unit.

[0011] The pipeline end operation detection unit includes a pressure sensor and a data storage device, wherein the pressure sensor is used to detect the pressure parameters of the pipeline end, and the data storage device is used to store the pressure parameters of the pipeline end collected by the pressure sensor;

[0012] The evaluation unit obtains the actual pressure F of the pipeline end collected by the pressure sensor in a working cycle and the duration t of the pressure. The evaluation unit establishes a piecewise function model ACT(F,t) of the pipeline end according to the actual working pressure F of the pipeline end and the duration t of the pressure:

[0013]

[0014] In the formula, F0 is the minimum working pressure at the end of the pipeline;

[0015] The evaluation unit obtains the total working state value T of the pipeline end within a working cycle:

[0016]

[0017] In the formula, F i is the actual pressure sampled at the end of the pipeline for the i-th time, ti This is the pressure F at the end of the pipeline in this collection. i duration, n is the total number of sampling times in one working cycle at the end of the pipeline, directly measured by the pressure sensor, ACT(F i , t i ) is the working state value of the i-th sampling at the end of the pipeline, where ACT(F i , t i )=1, at this time, the pipeline end is in normal working state; when ACT(F i , t i )=0, the pipeline end is in an abnormal working state;

[0018] The evaluation unit is based on the working state value T and the set working state value T s Calculate the state evaluation index State(F) at the end of the pipeline i , t i ):

[0019]

[0020] If the state evaluation index State(F i , t i ) is greater than the monitoring threshold Range, then the pipeline end can fully and normally operate;

[0021] If the state evaluation index State(F i , t i ) is less than the monitoring threshold Range, the pipeline end cannot fully work normally and generates fault report data and transmits it to the fault reporting module to prompt the maintenance personnel to perform maintenance as soon as possible;

[0022] The interaction module includes an interaction unit and a binding unit, wherein the binding unit is used to bind the identity of the maintenance worker with the mobile terminal, and the interaction unit matches the maintenance task according to the maintenance worker's information;

[0023] The binding unit obtains the identity information of the maintenance personnel, verifies the identity information of the maintenance personnel, and binds the mobile terminal with the identity information after the verification is passed;

[0024] When the maintenance worker senses or scans the RFID positioning tag of the positioning unit through the mobile terminal, a verification request is sent to the server. The mobile terminal transmits the scanned data to the server, and the server verifies the currently scanned positioning tag. If the verification result shows that the current end of the pipeline is in an abnormal working state, the server generates a maintenance request;

[0025] The interaction unit receives the verification request after the mobile terminal scans the QR code, and the server sends the data of the maintenance request at the end of the pipeline associated with the RFID positioning tag to the mobile terminal.

[0026] The pipeline end pressure monitoring system of the rough rolling descaling system according to the embodiment of the present invention has at least the following beneficial effects: it is capable of monitoring the descaling pressure at the final water-using ends, realizing comprehensive monitoring of the status of the rough rolling descaling system, ensuring that the descaling effect is stable and reliable, greatly improving the surface quality of the strip, reducing the defective rate, and improving production efficiency, while extending the service life of the equipment and reducing equipment failures and maintenance costs.

[0027] According to some embodiments of the present invention, the ends of the pipelines of the descaling system are respectively arranged at the inlet and outlet of the roughing No. 1 descaling box, the inlet and outlet of the roughing No. 1 descaling box, the internal spraying of the inlet of the roughing No. 1 rolling mill, the external spraying of the inlet of the roughing No. 1 rolling mill, the internal spraying of the outlet of the roughing No. 1 rolling mill, the external spraying of the outlet of the roughing No. 1 rolling mill, the internal spraying of the inlet of the roughing No. 2 rolling mill, the external spraying of the inlet of the roughing No. 2 rolling mill, the internal spraying of the outlet of the roughing No. 2 rolling mill, and the external spraying of the outlet of the roughing No. 2 rolling mill, and the pressure sensors are respectively installed at the ends of each of the water pipelines.

[0028] According to some embodiments of the present invention, F0=205 bar, t0=2.5 ​​s.

[0029] According to some embodiments of the present invention, the positioning module includes a sensing unit and a positioning unit, the sensing unit is used to sense the position of the positioning unit, and the positioning unit is used to locate the end of the pipeline to obtain the position of the end of the pipeline;

[0030] The positioning unit includes a plurality of RFID positioning tags and adhesive paper, each of the RFID positioning tags is arranged on a side of the adhesive paper provided with adhesive to form a positioning portion, and the positioning portion sends a positioning signal to the sensing unit;

[0031] Wherein, the adhesive paper is pasted on the outer wall of the end of the pipeline.

[0032] According to some embodiments of the present invention, the fault reporting module includes a fault collection unit and a maintenance dispatch unit, the fault collection unit acquires the fault reporting data generated by the evaluation unit, and the maintenance dispatch unit matches a maintenance person according to the fault reporting data;

[0033] Among them, after the mobile terminal senses or scans the positioning tag at the end of the pipeline, a corresponding fault reporting interface is generated, and the maintenance personnel triggers the fault reporting button on the fault reporting interface to generate fault reporting data.

[0034] According to some embodiments of the present invention, the timing unit includes a timer and an operation trigger. The operation trigger obtains the usage status value of the pipeline end by the pipeline end working detection unit. If the pipeline end is in a working state, a timing instruction is sent to the timer. After the timer responds to the timing instruction, it triggers the timing of the working mode state of the pipeline end.

[0035] According to some embodiments of the present invention, the fault reporting data includes the location, fault type and fault time of each RFID positioning tag.

[0036] According to some embodiments of the present invention, a QR code is provided on the side of the sticker away from the RFID positioning tag, and the QR code contains data identifying the pipe end, the pipe end type, the position of the pipe end, maintenance information associated with the pipe end, installation information and fault information.

[0037] According to some embodiments of the present invention, the sensing unit includes an RFID reading device, a gateway and a switch. The RFID reading device is used to read the signal emitted by each RFID positioning tag to obtain the real-time position of each RFID. The gateway is used to receive the position data of the RFID and transmit the position data of the end of the pipeline to the switch or the server.

[0038] According to a second aspect of the present invention, a method for monitoring the pressure at the end of a pipeline applied to a rough rolling descaling system comprises the following steps:

[0039] S100, installing pressure sensors at the ends of each pipeline of the hot rolling and rough rolling descaling system to achieve real-time collection of pressure at the ends of the pipelines and collection of pressure duration;

[0040] S200, establishing a descaling injection interlock alarm program for the descaling system, which is the first part of the state monitoring function of the descaling system. When the descaling injection interlock condition at any end of the pipeline is not met, an alarm prompt is issued;

[0041] S300, establish a descaling terminal pressure monitoring value abnormal alarm program, which is the second part of the descaling system status monitoring function. When the actual pressure at the descaling terminal and the pressure duration do not meet the target value requirements, an alarm prompt is issued.

[0042] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0044] Figure 1 It is a structural schematic diagram of a pipeline end pressure monitoring system of a rough rolling descaling system according to an embodiment of the present invention.

[0045] Figure 2 It is a partial flow chart of a method for monitoring the pressure at the end of a pipeline applied to a rough rolling descaling system according to an embodiment of the present invention.

[0046] Figure 3 It is a schematic diagram of the descaling abnormality alarm workflow of the pipeline end pressure monitoring method applied to the rough rolling descaling system according to an embodiment of the present invention.

[0047] 1. Roughing descaling box; 2. Roughing mill No. 1; 3. Roughing mill No. 2; 4. Descaling pump station; 5. Descaling end pressure sensor at the outlet of roughing descaling box; 6. Descaling end pressure sensor at the inlet of roughing descaling box; 7. Descaling nozzle at the outlet of roughing descaling box; 8. Descaling nozzle at the inlet of roughing descaling box; 9. Descaling end pressure sensor at the inlet of roughing mill No. 1; 10. Descaling end pressure sensor at the inlet of roughing mill No. 1; 11. Descaling nozzle at the inlet of roughing mill No. 1; 12. Descaling nozzle at the inlet of roughing mill No. 1; 13. Descaling end pressure sensor at the outlet of roughing mill No. 1; 14. 1. Pressure sensor for descaling at the end of the outlet of roughing mill No. 1; 15. Descaling nozzle for descaling at the outlet of roughing mill No. 1; 16. Descaling nozzle for descaling outside the outlet of roughing mill No. 1; 17. Pressure sensor for descaling at the end of the outlet of roughing mill No. 2; 18. Pressure sensor for descaling at the end of the outlet of roughing mill No. 2; 19. Descaling nozzle for descaling at the outlet of roughing mill No. 2; 20. Descaling nozzle for descaling outside the outlet of roughing mill No. 2; 21. Pressure sensor for descaling at the end of the outlet of roughing mill No. 2; 22. Pressure sensor for descaling at the end of the outlet of roughing mill No. 2; 23. Descaling nozzle for descaling at the outlet of roughing mill No. 2; 24. Descaling nozzle for descaling outside the outlet of roughing mill No. 2. DETAILED DESCRIPTION

[0048] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0049] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0050] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0051] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0052] The pipeline end pressure monitoring system of the rough rolling descaling system according to the embodiment of the present invention comprises a server, an interaction module, a pipeline end monitoring module, a fault reporting module, a positioning module, and a plurality of mobile terminals, wherein the server is respectively connected to the pipeline end monitoring module, the fault reporting module, the positioning module, and each mobile terminal, wherein each mobile terminal is used to connect to the server to query information and report faults on the pipeline end;

[0053] The positioning module is used to locate the distribution position of each pipeline end of the descaling system, the pipeline end monitoring module is used to monitor the operating status of each pipeline end, the fault reporting module is used to report faults to the pipeline end, and the interactive module is used to interact with the maintenance personnel based on the data of the fault reporting module;

[0054] The pipeline end monitoring module includes a pipeline end working detection unit, a timing unit, and an evaluation unit. The pipeline end working detection unit detects the operating status of the equipment, the timing unit times the working equivalent time of the equipment, and the evaluation unit analyzes the use status of the pipeline end according to the data of the pipeline end working detection unit and the timing unit.

[0055] The pipeline end operation detection unit includes a pressure sensor and a data storage device. The pressure sensor is used to detect the pressure parameters of the pipeline end, and the data storage device is used to store the pressure parameters of the pipeline end collected by the pressure sensor.

[0056] The evaluation unit obtains the actual pressure F at the end of the pipeline collected by the pressure sensor in a working cycle and the duration t of the pressure. The evaluation unit establishes a piecewise function model ACT(F,t) of the end of the pipeline according to the actual working pressure F at the end of the pipeline and the duration t of the pressure:

[0057]

[0058] In the formula, F0 is the minimum working pressure at the end of the pipeline;

[0059] The evaluation unit obtains the total working state value T of the pipeline end within a working cycle:

[0060]

[0061] In the formula, F i is the actual pressure of the i-th sampling at the end of the pipeline, t i The pressure F at the end of the pipeline was collected for this time. i duration, n is the total number of sampling times in one working cycle at the end of the pipeline, directly measured by the pressure sensor, ACT(F i , t i ) is the working state value of the i-th sampling at the end of the pipeline, where ACT(F i , t i )=1, at this time, the end of the pipeline is in normal working condition; when ACT(F i , t i )=0, the end of the pipeline is in an abnormal working state;

[0062] The evaluation unit determines the working state value T and the rated working state value T s Calculate the state evaluation index State(F) at the end of the pipeline i , t i ):

[0063]

[0064] If the state evaluation index State(F i , t i ) is greater than the monitoring threshold Range, the pipeline end can fully work normally;

[0065] If the state evaluation index State(F i , t i ) is less than the monitoring threshold Range, the pipeline end cannot fully work normally and generates fault report data and transmits it to the fault reporting module to prompt the maintenance personnel to perform maintenance as soon as possible;

[0066] The interaction module includes an interaction unit and a binding unit. The binding unit is used to bind the identity of the maintenance worker with the mobile terminal. The interaction unit matches the maintenance task according to the maintenance worker's information.

[0067] The binding unit obtains the identity information of the maintenance personnel, verifies the identity information of the maintenance personnel, and binds with the mobile terminal when the verification is passed;

[0068] When the maintenance worker senses or scans the RFID positioning tag of the positioning unit through the mobile terminal, a verification request is sent to the server. The mobile terminal transmits the scanned data to the server and verifies the currently scanned positioning tag through the server. If the verification result shows that the current pipeline end is in an abnormal working state, the server generates a maintenance request;

[0069] The interactive unit receives the verification request after the mobile terminal scans the QR code, and the server sends the data of the maintenance request of the end of the pipeline associated with the RFID positioning tag to the mobile terminal.

[0070] During actual use, the descaling pressure at each water-using end can be monitored to achieve comprehensive monitoring of the status of the rough rolling descaling system, ensuring that the descaling effect is stable and reliable, greatly improving the surface quality of the strip, reducing the defective rate, and improving production efficiency. At the same time, it can extend the service life of the equipment and reduce equipment failures and maintenance costs. At the same time, when an abnormality occurs, it can be discovered in time by maintenance personnel, so that the corresponding fault location can be quickly confirmed and repaired in time to reduce losses.

[0071] In some specific embodiments of the present invention, it may also have the following additional technical features: the ends of the pipelines of the descaling system are respectively arranged at the inlet and outlet of the roughing descaling box No. 1, the inlet and outlet of the roughing descaling box No. 1, the internal spraying of the roughing mill No. 1 inlet, the external spraying of the roughing mill No. 1 inlet, the internal spraying of the roughing mill No. 1 outlet, the external spraying of the roughing mill No. 1 outlet, the internal spraying of the roughing mill No. 2 inlet, the external spraying of the roughing mill No. 2 inlet, the internal spraying of the roughing mill No. 2 outlet, and the external spraying of the roughing mill No. 2 outlet, and the pressure sensors are respectively installed at the ends of each water pipeline.

[0072] Specifically, the descaling system includes a descaling pump station 4 and a descaling nozzle 7 at the outlet of a roughing descaling box, a descaling nozzle 8 at the inlet of a roughing descaling box, a descaling nozzle 11 at the inlet of a roughing No. 1 rolling mill, a descaling nozzle 12 at the inlet of a roughing No. 1 rolling mill, a descaling nozzle 15 at the outlet of a roughing No. 1 rolling mill, a descaling nozzle 16 at the outlet of a roughing No. 1 rolling mill, a descaling nozzle 19 at the inlet of a roughing No. 2 rolling mill, a descaling nozzle 20 at the inlet of a roughing No. 2 rolling mill, a descaling nozzle 23 at the outlet of a roughing No. 2 rolling mill, and a descaling nozzle 24 at the outlet of a roughing No. 2 rolling mill;

[0073] There is one descaling nozzle 7 at the outlet of the roughing descaling box and one descaling nozzle 8 at the inlet of the roughing descaling box, and they are respectively arranged at the outlet and the inlet of the roughing descaling box 1. The descaling terminal pressure sensor 6 at the inlet of the roughing descaling box is connected between the descaling nozzle 8 at the inlet of the roughing descaling box and the descaling pump station 4. The descaling terminal pressure sensor 5 at the outlet of the roughing descaling box is connected between the descaling nozzle 7 at the outlet of the roughing descaling box and the descaling pump station 4.

[0074] There are two external descaling spray nozzles 12 at the entrance of the roughing mill No. 1 and are arranged at the entrance of the roughing mill No. 1 2. There is one internal descaling spray nozzle 11 at the entrance of the roughing mill No. 1 and is arranged between the two external descaling spray nozzles 12 at the entrance of the roughing mill No. 1. There are two external descaling spray nozzles 16 at the outlet of the roughing mill No. 1 and are arranged at the outlet of the roughing mill No. 1. There is one internal descaling spray nozzle 15 at the outlet of the roughing mill No. 1 and is arranged between the two external descaling spray nozzles 16 at the outlet of the roughing mill No. 1. A pressure sensor 9 at the end of the external descaling spray nozzle 9 at the entrance of the roughing mill No. 1 Connected between the descaling nozzle 12 outside the entrance of the roughing mill No. 1 and the descaling pump station 4, the descaling end pressure sensor 10 inside the entrance of the roughing mill No. 1 is connected between the descaling nozzle 11 inside the entrance of the roughing mill No. 1 and the descaling pump station 4, the descaling end pressure sensor 13 outside the outlet of the roughing mill No. 1 is connected between the descaling nozzle 16 outside the outlet of the roughing mill No. 1 and the descaling pump station 4, and the descaling end pressure sensor 14 inside the outlet of the roughing mill No. 1 is connected between the descaling nozzle 15 inside the outlet of the roughing mill No. 1 and the descaling pump station 4;

[0075] There are two external descaling nozzles 20 at the entrance of the roughing No. 2 rolling mill and are arranged at the entrance of the roughing No. 2 rolling mill 3. There is one internal descaling nozzle 19 at the entrance of the roughing No. 2 rolling mill and is arranged between the two external descaling nozzles 20 at the entrance of the roughing No. 2 rolling mill. There are two external descaling nozzles 24 at the outlet of the roughing No. 2 rolling mill and are arranged at the outlet of the roughing No. 2 rolling mill 3. There is one internal descaling nozzle 23 at the outlet of the roughing No. 2 rolling mill and is arranged between the two external descaling nozzles 24 at the outlet of the roughing No. 2 rolling mill. The pressure sensor at the end of the external descaling nozzle at the entrance of the roughing No. 2 rolling mill is 17 is connected between the external descaling nozzle 20 at the entrance of the roughing No. 2 rolling mill and the descaling pump station 4, the internal descaling terminal pressure sensor 18 at the entrance of the roughing No. 2 rolling mill is connected between the internal descaling nozzle 19 at the entrance of the roughing No. 2 rolling mill and the descaling pump station 4, the external descaling terminal pressure sensor 21 at the outlet of the roughing No. 2 rolling mill is connected between the external descaling nozzle 24 at the outlet of the roughing No. 2 rolling mill and the descaling pump station 4, and the internal descaling terminal pressure sensor 22 at the outlet of the roughing No. 2 rolling mill is connected between the internal descaling nozzle 23 at the outlet of the roughing No. 2 rolling mill and the descaling pump station 4.

[0076] In some specific embodiments of the present invention, it may also have the following additional technical features: F0=205 bar, t0=2.5 ​​s.

[0077] In some specific embodiments of the present invention, it may also have the following additional technical features: the positioning module includes a sensing unit and a positioning unit, the sensing unit is used to sense the position of the positioning unit, and the positioning unit is used to locate the end of the pipeline to obtain the position of the end of the pipeline;

[0078] The positioning unit includes a plurality of RFID positioning tags and adhesive paper, each RFID positioning tag is arranged on a side of the adhesive paper provided with adhesive to form a positioning part, and the positioning part sends a positioning signal to the sensing unit;

[0079] Wherein, the adhesive paper is pasted on the outer wall of the end of the pipeline.

[0080] In some specific embodiments of the present invention, it may also have the following additional technical features: the fault reporting module includes a fault collection unit and a maintenance dispatch unit, the fault collection unit obtains the fault reporting data generated by the evaluation unit, and the maintenance dispatch unit matches the maintenance personnel according to the fault reporting data;

[0081] Among them, after the mobile terminal senses or scans the positioning tag at the end of the pipeline, a corresponding fault reporting interface is generated, and the maintenance personnel triggers the fault reporting button on the fault reporting interface to generate fault reporting data.

[0082] In some specific embodiments of the present invention, it may also have the following additional technical features: the timing unit includes a timer and an operation trigger, the operation trigger obtains the usage status value of the pipeline end by the pipeline end working detection unit, and if the pipeline end is in a working state, a timing instruction is sent to the timer. After the timer responds to the timing instruction, it triggers the timing of the working mode state of the pipeline end.

[0083] In some specific embodiments of the present invention, it may also have the following additional technical features: the fault reporting data includes the location, fault type and fault time of each RFID positioning tag.

[0084] In some specific embodiments of the present invention, it may also have the following additional technical features: a QR code is provided on the side of the adhesive paper away from the RFID positioning tag, and the QR code contains data for identifying the end of the pipeline, the type of pipeline end, the location of the pipeline end, maintenance information associated with the pipeline end, installation information and fault information.

[0085] In some specific embodiments of the present invention, it may also have the following additional technical features: the sensing unit includes an RFID reading device, a gateway and a switch, the RFID reading device is used to read the signal emitted by each RFID positioning tag to obtain the real-time position of each RFID, and the gateway is used to receive the position data of the RFID and transmit the position data of the end of the pipeline to the switch or server.

[0086] According to a second aspect of the present invention, a method for monitoring the pressure at the end of a pipeline applied to a rough rolling descaling system comprises the following steps:

[0087] S100, installing pressure sensors at the ends of each pipeline of the hot rolling and rough rolling descaling system to achieve real-time collection of pressure at the ends of the pipelines and collection of pressure duration;

[0088] S200, establishing a descaling injection interlock alarm program for the descaling system, which is the first part of the state monitoring function of the descaling system. When the descaling injection interlock condition at any end of the pipeline is not met, an alarm prompt is issued;

[0089] S300, establish a descaling terminal pressure monitoring value abnormal alarm program, which is the second part of the descaling system status monitoring function. When the actual pressure at the descaling terminal and the pressure duration do not meet the target value requirements, an alarm prompt is issued.

[0090] In some specific embodiments of the present invention, the present invention may also have the following additional technical features: Step 1 of installing a descaling end pressure monitoring sensor includes:

[0091] S110, sensor selection, select the sensor model according to the descaling system pressure;

[0092] S120, pressure sensors are installed at the end of each descaling water use in the rough rolling area, and the installation locations include the inlet of the rough rolling No. 1 descaling box, the inlet and outlet of the rough rolling No. 1 descaling box, the inlet internal spraying of the rough rolling No. 1 rolling mill, the inlet external spraying of the rough rolling No. 1 rolling mill, the outlet internal spraying of the rough rolling No. 1 rolling mill, the outlet external spraying of the rough rolling No. 1 rolling mill, the inlet internal spraying of the rough rolling No. 2 rolling mill, the inlet external spraying of the rough rolling No. 2 rolling mill, the outlet internal spraying of the rough rolling No. 2 rolling mill, and the outlet external spraying of the rough rolling No. 2 rolling mill, a total of 10 sensors;

[0093] S130, respectively collecting data of pressure sensor signals at 10 locations and storing them in a server;

[0094] In some specific embodiments of the present invention, the present invention may also have the following additional technical features: Step 2 of establishing a descaling system descaling injection interlock alarm program includes:

[0095] S210, spray interlocking contents of combing and descaling system;

[0096] S220, all interlocking signals are incorporated into the alarm program, and when the interlocking is not satisfied, the descaling failure alarm of the corresponding position is performed.

[0097] Specifically, the spray interlocking content of the descaling system is a technical means already available in the prior art and will not be described in detail here.

[0098] In some specific embodiments of the present invention, the present invention may also have the following additional technical features: Step 3 of establishing an abnormal alarm program for monitoring the value of the descaling terminal pressure includes:

[0099] S310, incorporating the signal collected and stored in step 1 into the alarm program, and when the pressure does not meet the process requirements, performing descaling at the corresponding position and alarming if the pressure does not meet the requirements;

[0100] S320. Definition of the descaling pressure value that meets the process requirements. Through the descaling spray test, the descaling pressure value that meets the process requirements is analyzed. When the terminal pressure is <205bar and lasts for more than 2.5 seconds, it is considered that the descaling does not meet the process requirements and an alarm is issued.

[0101] Taking the application of the present invention in the rough rolling descaling system of the 2250 hot rolling production line of Zhanjiang Iron and Steel as an example, a pop-up box alarm display is triggered when descaling is abnormal during the application process, and the meaning is as follows:

[0102] HSB ENTRY DESCALING OFF: Abnormal descaling at the entrance of the rough rolling descaling box;

[0103] HSB EXI T DESCALING OFF: Abnormal descaling at the rough rolling descaling box outlet;

[0104] R1 ENT INSIDE DESCALING OFF: Abnormal descaling inside the entrance of the roughing mill No. 1;

[0105] R1 ENT OUTSIDE DESCALING OFF: The descaling of the outside of the roughing mill No. 1 entrance is abnormal;

[0106] R1 EXI T INSIDE DESCALING OFF: The descaling inside the outlet of the rough rolling mill No. 1 is abnormal;

[0107] R1 EXI T OUTSIDE DESCALING OFF: The descaling of the roughing mill No. 1 at the exit is abnormal;

[0108] R2 ENT INSIDE DESCALING OFF: Abnormal descaling inside the entrance of the roughing mill No. 2;

[0109] R2 ENT OUTSIDE DESCALING OFF: The descaling of the outside of the entrance of the roughing mill No. 2 is abnormal;

[0110] R2 EXI T INSIDE DESCALING OFF: The descaling inside the outlet of the rough rolling mill No. 2 is abnormal;

[0111] R2 EXI T OUTSIDE DESCALING OFF: The descaling outside the exit of the rough rolling mill No. 2 is abnormal.

[0112] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A pipeline end pressure monitoring system for a rough rolling descaling system, characterized in that: It includes a server, an interaction module, a pipeline end monitoring module, a fault reporting module, a positioning module, and several mobile terminals. The server is respectively connected to the pipeline end monitoring module, the fault reporting module, the positioning module, and each mobile terminal. Each mobile terminal is used to connect to the server to query information and report faults on the pipeline end. The positioning module is used to locate the distribution position of each pipeline end of the descaling system, the pipeline end monitoring module is used to monitor the operating status of each pipeline end, the fault reporting module is used to report the fault of the pipeline end, and the interactive module is used to interact with the maintenance personnel according to the data of the fault reporting module; The pipeline end monitoring module includes a pipeline end working detection unit, a timing unit, and an evaluation unit. The pipeline end working detection unit detects the operating state of the device, the timing unit times the working equivalent time of the device, and the evaluation unit analyzes the use state of the pipeline end according to the data of the pipeline end working detection unit and the timing unit. The pipeline end operation detection unit includes a pressure sensor and a data storage device, wherein the pressure sensor is used to detect the pressure parameters of the pipeline end, and the data storage device is used to store the pressure parameters of the pipeline end collected by the pressure sensor; The evaluation unit obtains the actual pressure F of the pipeline end collected by the pressure sensor in a working cycle and the duration t of the pressure. The evaluation unit establishes a piecewise function model ACT(F,t) of the pipeline end according to the actual working pressure F of the pipeline end and the duration t of the pressure: In the formula, F0 is the minimum working pressure at the end of the pipeline; The evaluation unit obtains the total working state value T of the pipeline end within a working cycle: In the formula, F i is the actual pressure sampled at the end of the pipeline for the i-th time, t i This is the pressure F at the end of the pipeline in this collection. i duration, n is the total number of sampling times in one working cycle at the end of the pipeline, directly measured by the pressure sensor, ACT(F i , t i ) is the working state value of the i-th sampling at the end of the pipeline, where ACT(F i , t i )=1, at this time, the pipeline end is in normal working state; when ACT(F i , t i )=0, the pipeline end is in an abnormal working state; The evaluation unit is based on the working state value T and the set working state value T s Calculate the state evaluation index State(F) at the end of the pipeline i , t i ): If the state evaluation index State(F i , t i ) is greater than the monitoring threshold Range, then the pipeline end can fully and normally operate; If the state evaluation index State(F i , t i ) is less than the monitoring threshold Range, the pipeline end cannot fully work normally and generates fault report data and transmits it to the fault reporting module to prompt the maintenance personnel to perform maintenance as soon as possible; The interaction module includes an interaction unit and a binding unit, wherein the binding unit is used to bind the identity of the maintenance worker with the mobile terminal, and the interaction unit matches the maintenance task according to the maintenance worker's information; The binding unit obtains the identity information of the maintenance personnel, verifies the identity information of the maintenance personnel, and binds the mobile terminal with the identity information after the verification is passed; When the maintenance worker senses or scans the RFID positioning tag of the positioning unit through the mobile terminal, a verification request is sent to the server. The mobile terminal transmits the scanned data to the server, and the server verifies the currently scanned positioning tag. If the verification result shows that the current end of the pipeline is in an abnormal working state, the server generates a maintenance request; The interaction unit receives the verification request after the mobile terminal scans the QR code, and the server sends the data of the maintenance request at the end of the pipeline associated with the RFID positioning tag to the mobile terminal.

2. The pipeline end pressure monitoring system of the rough rolling descaling system according to claim 1 is characterized in that: The ends of the pipelines of the descaling system are respectively arranged at the inlet and outlet of the roughing descaling box No. 1, the inlet and outlet of the roughing descaling box No. 1, the inlet internal spraying of the roughing mill No. 1, the inlet external spraying of the roughing mill No. 1, the outlet internal spraying of the roughing mill No. 1, the outlet external spraying of the roughing mill No. 1, the inlet internal spraying of the roughing mill No. 2, the inlet external spraying of the roughing mill No. 2, the outlet internal spraying of the roughing mill No. 2, and the outlet external spraying of the roughing mill No. 2, and the pressure sensors are respectively installed at the ends of each of the water pipelines.

3. The pipeline end pressure monitoring system of the rough rolling descaling system according to claim 2 is characterized in that: The F0=205 bar, t0=2.5 ​​s.

4. The pipeline end pressure monitoring system of the rough rolling descaling system according to claim 3 is characterized in that: The positioning module includes a sensing unit and a positioning unit, wherein the sensing unit is used to sense the position of the positioning unit, and the positioning unit is used to locate the end of the pipeline to obtain the position of the end of the pipeline; The positioning unit includes a plurality of RFID positioning tags and adhesive paper, each of the RFID positioning tags is arranged on a side of the adhesive paper provided with adhesive to form a positioning portion, and the positioning portion sends a positioning signal to the sensing unit; Wherein, the adhesive paper is pasted on the outer wall of the end of the pipeline.

5. The pipeline end pressure monitoring system of the rough rolling descaling system according to claim 4 is characterized in that: The fault reporting module includes a fault collection unit and a maintenance dispatch unit, wherein the fault collection unit obtains the fault reporting data generated by the evaluation unit, and the maintenance dispatch unit matches a maintenance person according to the fault reporting data; Among them, after the mobile terminal senses or scans the positioning tag at the end of the pipeline, a corresponding fault reporting interface is generated, and the maintenance personnel triggers the fault reporting button on the fault reporting interface to generate fault reporting data.

6. The pipeline end pressure monitoring system of the rough rolling descaling system according to claim 5, characterized in that: The timing unit includes a timer and an operation trigger. The operation trigger obtains the usage status value of the pipeline end by the pipeline end working detection unit. If the pipeline end is in a working state, a timing instruction is sent to the timer. After the timer responds to the timing instruction, it triggers the timing of the working mode state of the pipeline end.

7. The pipeline end pressure monitoring system of the rough rolling descaling system according to claim 6, characterized in that: The fault reporting data includes the location, fault type and fault time of each RFID positioning tag.

8. The pipeline end pressure monitoring system of the rough rolling descaling system according to claim 7, characterized in that: A QR code is provided on the side of the sticker away from the RFID positioning tag, and the QR code contains data identifying the pipe end, the pipe end type, the position of the pipe end, maintenance information associated with the pipe end, installation information and fault information.

9. The pipeline end pressure monitoring system of the rough rolling descaling system according to claim 8, characterized in that: The sensing unit includes an RFID reading device, a gateway and a switch. The RFID reading device is used to read the signal emitted by each RFID positioning tag to obtain the real-time position of each RFID. The gateway is used to receive the position data of the RFID and transmit the position data of the end of the pipeline to the switch or the server.

10. A method for monitoring the pressure at the end of a pipeline applied to a rough rolling descaling system, characterized in that: The following steps are involved: S100, installing pressure sensors at the ends of each pipeline of the hot rolling and rough rolling descaling system to achieve real-time collection of pressure at the ends of the pipelines and collection of pressure duration; S200, establishing a descaling injection interlock alarm program for the descaling system, which is the first part of the state monitoring function of the descaling system. When the descaling injection interlock condition at any end of the pipeline is not met, an alarm prompt is issued; S300, establish a descaling terminal pressure monitoring value abnormal alarm program, which is the second part of the descaling system status monitoring function. When the actual pressure at the descaling terminal and the pressure duration do not meet the target value requirements, an alarm prompt is issued.

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