Fault detection system and method for steam soot blower of coal-fired boiler

Abstract

The invention relates to a fault detection system and method for a steam soot blower of a coal-fired boiler, and the method comprises the steps: obtaining the operation parameters, such as the steam temperature, the working current, the steam flow, the steam pressure and the soot blowing time, of the soot blower through a detection assembly in a fault detection process; the acquired operation parameters can be converted into corresponding communication data through the signal module; and finally, the control module can compare the communication data with preset data, and judge and output the operation condition of the soot blower. Thus, compared with a traditional monitoring mode, the fault detection system for the steam soot blower of the coal-fired boiler can monitor operation parameters such as the steam temperature, the working current, the steam flow, the steam pressure and the soot blowing time in real time, more comprehensive and accurate monitoring and comprehensive data processing can be achieved, rapid and accurate early warning of faults of the steam soot blower of the coal-fired boiler is achieved, and the fault detection efficiency is improved. And the reliability and the safety of operation of the steam soot blower of the coal-fired boiler are effectively improved.

Description

Technical Field

[0001] This application relates to the field of steam soot blowing technology for coal-fired boilers, and in particular to a fault detection system and method for steam soot blowers in coal-fired boilers. Background Technology

[0002] Steam soot blowing in coal-fired boilers is a maintenance technique that uses high-temperature, high-pressure steam to remove ash and slag buildup from the surfaces of heated surfaces, such as the furnace water-cooled walls, superheaters, reheaters, and economizers, during boiler operation. The core objective is to keep these heated surfaces clean, thereby improving boiler thermal efficiency and operational safety. Therefore, fault detection of the steam soot blower in coal-fired boilers is crucial for the safe operation of the boiler.

[0003] Traditional coal-fired boiler steam soot blower fault detection is usually quite simple, mostly relying on manual inspection or single parameter monitoring, which has problems such as low efficiency and delayed fault detection, making it difficult to meet the high requirements of large coal-fired boilers for the reliability and safety of soot blowers. Summary of the Invention

[0004] Therefore, it is necessary to provide a fault detection system and method for steam soot blowers in coal-fired boilers, which includes multi-parameter monitoring and comprehensive data processing to achieve rapid and accurate early warning of faults in steam soot blowers of coal-fired boilers.

[0005] A fault detection system for a steam sootblower in a coal-fired boiler includes: a detection component for acquiring operating parameters of the sootblower, including steam temperature, operating current, steam flow rate, steam pressure, and sootblowing time; a signal module electrically connected to the detection component for receiving the operating parameters acquired by the detection component and outputting corresponding communication data; and a control module electrically connected to the signal module for receiving the communication data and comparing the communication data with corresponding preset data to determine and output the operating status of the sootblower.

[0006] The aforementioned coal-fired boiler steam sootblower fault detection system can acquire operating parameters such as steam temperature, operating current, steam flow rate, steam pressure, and sootblowing time during the fault detection process. These parameters are then converted into corresponding communication data by a signal module. Finally, the control module compares the communication data with preset data to determine and output the sootblower's operating status. Therefore, compared to traditional monitoring methods, this coal-fired boiler steam sootblower fault detection system can monitor operating parameters such as steam temperature, operating current, steam flow rate, steam pressure, and sootblowing time in real time, providing more comprehensive and accurate monitoring and data processing. This enables rapid and accurate early warning of coal-fired boiler steam sootblower faults, effectively improving the reliability and safety of the coal-fired boiler steam sootblower operation.

[0007] In some embodiments, the detection component includes a temperature sensing element electrically connected to a signal module, the temperature sensing element being used to acquire the steam temperature in the sootblower.

[0008] In some embodiments, the temperature sensing element includes a compensation module and a temperature sensing module. The temperature sensing module is used to measure the pipe wall temperature of the pipe fittings supplying steam flow in the sootblower. The compensation module is electrically connected to the temperature sensing module and is used to add a compensation temperature to the pipe wall temperature to obtain the steam temperature.

[0009] In some embodiments, the detection components include multiple components, each used to acquire the operating parameters of sootblowers distributed in different areas.

[0010] In some embodiments, a display module electrically connected to the control module is also included; the control module is further configured to determine that the sootblower is in a fault state and output alarm information when the communication data does not match the corresponding preset data; the display module is configured to display the alarm information.

[0011] In some embodiments, the control module is specifically configured to output internal leakage information when the soot blower stops blowing soot and the communication data corresponding to the steam temperature is higher than the corresponding preset data; output gun jamming information when the communication data corresponding to the operating current is higher than the corresponding preset data; and output overpressure information when the communication data corresponding to the steam pressure is higher than the corresponding preset data. The alarm information includes internal leakage information, gun jamming information, and overpressure information.

[0012] A method for fault detection of a steam sootblower in a coal-fired boiler includes the following steps: determining that the sootblower is in operation; acquiring the operating parameters of the sootblower and feeding back the corresponding communication data, wherein the operating parameters include steam temperature, operating current, steam flow rate, steam pressure and sootblowing time; and judging and outputting the operating status of the sootblower by comparing the acquired communication data with the corresponding preset data.

[0013] The aforementioned fault detection method for steam sootblowers in coal-fired boilers, under normal operating conditions, can acquire operating parameters such as steam temperature, operating current, steam flow rate, steam pressure, and sootblowing time, and feed back corresponding communication data. Then, it can compare the communication data with preset data to determine and output the operating status of the sootblower. Thus, compared to traditional monitoring methods, this fault detection system for steam sootblowers in coal-fired boilers can monitor operating parameters such as steam temperature, operating current, steam flow rate, steam pressure, and sootblowing time in real time, providing more comprehensive and accurate monitoring and integrated data processing. This enables rapid and accurate early warning of faults in the steam sootblowers of coal-fired boilers, effectively improving the reliability and safety of their operation.

[0014] In some embodiments, acquiring the operating parameters of the sootblower and feeding back the corresponding communication data includes: partitioning multiple sootblowers; acquiring the operating parameters of sootblowers in different regions and converting them into corresponding communication data; and grouping the acquired communication data according to the region where the sootblower is located.

[0015] In some embodiments, the operation parameters of the sootblower are obtained and the corresponding communication data is fed back, including: when obtaining the steam temperature, obtaining the pipe wall temperature of the pipes supplying steam flow in the sootblower, and adding a compensation temperature to the pipe wall temperature to obtain the steam temperature.

[0016] In some embodiments, the operating status of the sootblower is determined and output, including: when the sootblower stops blowing soot and the communication data corresponding to the steam temperature is higher than the corresponding preset data, outputting internal leakage information; when the communication data corresponding to the operating current is higher than the corresponding preset data, outputting gun jamming information; when the communication data corresponding to the steam pressure is higher than the corresponding preset data, outputting overpressure information. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the coal-fired boiler steam soot blower fault detection system described in some embodiments of this application.

[0018] Figure 2 The flowchart of the coal-fired boiler steam soot blower fault detection method described in some embodiments of this application is as follows. Figure 1 .

[0019] Figure 3 The flowchart of the coal-fired boiler steam soot blower fault detection method described in some embodiments of this application is as follows. Figure 2 .

[0020] Figure 4 This is a schematic diagram of the fault detection logic of the steam soot blower for a coal-fired boiler as described in some embodiments of this application.

[0021] 100. Detection component; 200. Signal module; 300. Control module; 400. Compensation module; 500. Display module. Detailed Implementation

[0022] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0023] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0024] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0028] In some embodiments, please refer to Figure 1 This application provides a fault detection system for a steam sootblower in a coal-fired boiler, comprising: a detection component 100, a signal module 200, and a control module 300. The detection component 100 is used to acquire the operating parameters of the sootblower, including steam temperature, operating current, steam flow rate, steam pressure, and sootblowing time. The signal module 200 is electrically connected to the detection component 100 and is used to receive the operating parameters acquired by the detection component 100 and output corresponding communication data. The control module 300 is electrically connected to the signal module 200 and is used to receive the communication data and compare the communication data with corresponding preset data to determine and output the operating status of the sootblower.

[0029] The aforementioned coal-fired boiler steam sootblower fault detection system, during the fault detection process, can acquire operating parameters such as steam temperature, operating current, steam flow rate, steam pressure, and sootblowing time of the sootblower through the detection component 100. These acquired operating parameters are converted into corresponding communication data by the signal module 200. Finally, the control module 300 compares the communication data with preset data to determine and output the operating status of the sootblower. Thus, compared to traditional monitoring methods, this coal-fired boiler steam sootblower fault detection system can monitor operating parameters such as steam temperature, operating current, steam flow rate, steam pressure, and sootblowing time in real time, providing more comprehensive and accurate monitoring and integrated data processing. This enables rapid and accurate early warning of coal-fired boiler steam sootblower faults, effectively improving the reliability and safety of the coal-fired boiler steam sootblower operation.

[0030] It should be noted that a sootblower is a device that uses high-temperature, high-pressure steam to remove ash and slag from the surface of a boiler. It may include a shut-off valve, a threaded pipe, and a sootblowing gun connected to the threaded pipe. The sootblowing gun sprays steam and, under the action of power such as a cylinder, hydraulic cylinder, or motor, moves forward and backward to the desired area to achieve the purpose of soot blowing. The stability of the sootblower is particularly important for the safe operation of the boiler. For example, if the sootblower experiences internal leakage, gun jamming, or overpressure, it will affect its normal use. Internal leakage refers to steam leakage after the sootblower stops working, affecting subsequent sootblowing operations; gun jamming refers to a malfunction where the sootblowing gun is obstructed during forward and backward movement, preventing it from completing its extension and retraction actions normally; overpressure refers to the steam pressure in the sootblower exceeding the set value. Furthermore, since the specific structural design of the sootblower is not the focus of this embodiment, its specific structure will not be described in detail here.

[0031] The detection component 100 is used to acquire the operating parameters of the sootblower during operation. These parameters include steam temperature, operating current, steam flow rate, steam pressure, and sootblowing time. This enables real-time monitoring of key parameters such as steam temperature, flow rate, current, and time, ensuring a comprehensive understanding of the sootblower's operating status. In some examples, the detection component 100 may include temperature sensing elements, ammeters, flow meters, pressure gauges, and timers. The temperature sensing elements are used to acquire the steam temperature in the sootblower and may be, but are not limited to, thermocouples, thermistors, and infrared sensors. The sootblowing time can be obtained by calculating the time between the opening and closing of the shut-off valve in the sootblower using a timer, or by calculating the time between the advance and retraction of the sootblowing gun using a timer.

[0032] Signal module 200 refers to a device that converts the operating parameters acquired by detection component 100 into general data signals. It can be, but is not limited to, an analog-to-digital converter, a data acquisition front-end module, etc. The converted communication data can be sent to control module 300 for analysis and processing. In control module 300, the communication data is compared with corresponding preset data, such as: communication data corresponding to steam temperature and preset data corresponding to steam temperature; communication data corresponding to operating current and preset data corresponding to operating current; communication data corresponding to steam flow rate and preset data corresponding to steam flow rate; communication data corresponding to steam pressure and preset data corresponding to steam pressure; and communication data corresponding to soot blowing time and preset data corresponding to soot blowing time.

[0033] When the communication data does not match the preset data, the control module 300 determines that the sootblower is in a fault state and outputs relevant information. For example, if the steam temperature is higher than the preset data during the cooling process, the sootblower is judged to have an internal leakage fault; or, if the working circuit temperature is higher than the preset data during operation, the sootblower is judged to have a jammed nozzle fault. Of course, the sootblowing time can also be used to determine whether the sootblower is jammed. Furthermore, during the comparison, the preset data can be set as a range value; if the communication data falls within this range, it is considered to be in compliance; otherwise, it is considered to be incompatible.

[0034] During the steam heating and cooling process, the temperature rise and fall curve in the sootblower can also be obtained through the detection component 100, and the corresponding preset data can also be the temperature rise and fall curve.

[0035] In addition, it should be noted that when the control module 300 determines that the sootblower is in a faulty state, it can display fault information on the display as an alarm; it can also issue a warning through devices such as a buzzer and a warning light.

[0036] Furthermore, the detection component 100 includes a temperature sensing element electrically connected to the signal module 200, which is used to acquire the steam temperature in the sootblower. Thus, by utilizing the temperature sensing element, the steam temperature in the sootblower can be easily acquired, improving the convenience and accuracy of temperature parameter acquisition.

[0037] The temperature sensing element can be, but is not limited to, thermocouples, thermistors, infrared sensors, etc. When obtaining temperature values, one end of the temperature sensing element can be directly inserted into the steam; alternatively, it can be designed on the surface of equipment supplying steam flow.

[0038] Furthermore, the temperature sensing element can be installed in various positions on the sootblower. For example, it can be installed on the shut-off valve, bellows, or sootblowing gun. Specifically, the temperature sensing element is installed on the shut-off valve.

[0039] Furthermore, please refer to Figure 1 The temperature sensing element also includes a compensation module 400 and a temperature sensing module. The temperature sensing module measures the pipe wall temperature of the steam-supplying pipes in the sootblower. The compensation module 400 is electrically connected to the temperature sensing module and is used to add a compensation temperature to the pipe wall temperature to obtain the steam temperature. It can be seen that in this embodiment, when obtaining the steam temperature, the pipe wall temperature is obtained, and then the compensation module 400 is used to compensate and correct the pipe wall temperature, improving the measurement accuracy and providing a reliable basis for accurately judging the state of the sootblower.

[0040] It should be noted that this embodiment indirectly obtains the steam temperature by measuring the pipe wall temperature, making the installation of the temperature measuring module more convenient and eliminating the need for drilling and sealing operations in the sootblower, thus saving costs. The compensation temperature is obtained by measuring the temperature difference between the pipe wall and the steam, and the compensation module 400 can be, but is not limited to, a thermistor, operational amplifier, etc. The temperature measuring module can be, but is not limited to, a thermocouple, thermistor, infrared sensor, etc., and the temperature measuring module and the compensation module 400 can be integrated together or have a separate structure.

[0041] In some specific examples, the temperature measurement module is installed on the shut-off valve of the sootblower to obtain the temperature of the pipe wall at the steam input or output of the shut-off valve.

[0042] In some embodiments, the detection component 100 includes multiple components, each of which is used to acquire the operating parameters of sootblowers distributed in different areas. Therefore, by using multiple detection components 100, the synchronous operating status of multiple sootblowers can be monitored simultaneously, thereby improving detection efficiency. When monitoring the operating status of multiple sootblowers, the multiple sootblowers can be partitioned to associate the monitored operating parameters with sootblowers in different areas, and the acquired communication data can be grouped and managed. Thus, using a partitioned management method to group and process communication data improves data management efficiency and facilitates individual analysis and fault diagnosis of the status of sootblowers in different areas.

[0043] It should be noted that there are several ways to partition multiple sootblowers. For example, they can be partitioned according to their location, or according to their function or operating sequence.

[0044] In some embodiments, a display module 500 electrically connected to the control module 300 is also included; the control module 300 is further configured to determine that the sootblower is in a fault state and output alarm information when the communication data does not match the corresponding preset data; the display module 500 is configured to display the alarm information. Thus, through the display module 500, operators can quickly and accurately determine the operating status of the sootblower, which helps to take timely maintenance measures and reduce losses due to malfunctions.

[0045] In some embodiments, the control module 300 is specifically used to output internal leakage information when the sootblower stops blowing soot and the communication data corresponding to the steam temperature is higher than the corresponding preset data; to output gun jamming information when the communication data corresponding to the operating current is higher than the corresponding preset data; and to output overpressure information when the communication data corresponding to the steam pressure is higher than the corresponding preset data. The alarm information includes internal leakage information, gun jamming information, and overpressure information. Therefore, when the sootblower stops operating, if the acquired steam temperature is higher than the preset data, it indicates that steam leakage has occurred inside the sootblower. If, during the operation of the sootblower, the communication data corresponding to the operating current is higher than the preset data, it indicates that the sootblower is in a jammed state, causing large fluctuations in current. Of course, data on sootblowing time can also be used for collaborative judgment. If, during the operation of the sootblower, the acquired steam pressure is greater than the preset data, it indicates that the sootblower is in an overpressure state. Thus, the ability to automatically identify faults based on preset judgment criteria helps to take timely maintenance measures and reduce losses from failures.

[0046] In some embodiments, please refer to Figure 2 This application provides a method for detecting faults in a steam soot blower of a coal-fired boiler, the method comprising the following steps:

[0047] S100. Confirm that the soot blower is in working condition.

[0048] S200: Obtain the operating parameters of the sootblower and feed back the corresponding communication data. The operating parameters include steam temperature, operating current, steam flow rate, steam pressure, and sootblowing time.

[0049] S300: Based on the comparison between the acquired communication data and the corresponding preset data, determine and output the operating status of the sootblower.

[0050] The aforementioned fault detection method for steam sootblowers in coal-fired boilers, under normal operating conditions, can acquire operating parameters such as steam temperature, operating current, steam flow rate, steam pressure, and sootblowing time, and feed back corresponding communication data. Then, it can compare the communication data with preset data to determine and output the operating status of the sootblower. Thus, compared to traditional monitoring methods, this fault detection system for steam sootblowers in coal-fired boilers can monitor operating parameters such as steam temperature, operating current, steam flow rate, steam pressure, and sootblowing time in real time, providing more comprehensive and accurate monitoring and integrated data processing. This enables rapid and accurate early warning of faults in the steam sootblowers of coal-fired boilers, effectively improving the reliability and safety of their operation.

[0051] It should be noted that if no, after step S100, it means that the sootblower is not working, and there is no need to monitor the operating parameters of the sootblower.

[0052] In step S300, the communication data is compared with the corresponding preset data, which can be understood as: comparing the communication data corresponding to the steam temperature with the preset data corresponding to the steam temperature; comparing the communication data corresponding to the operating current with the preset data corresponding to the operating current; comparing the communication data corresponding to the steam flow rate with the preset data corresponding to the steam flow rate; comparing the communication data corresponding to the steam pressure with the preset data corresponding to the steam pressure; and comparing the communication data corresponding to the soot blowing time with the preset data corresponding to the soot blowing time.

[0053] When the communication data does not match the preset data, the sootblower is determined to be in a faulty state, and relevant information is output. For example, if the steam temperature is higher than the preset data during cooling, the sootblower is determined to have an internal leakage fault; or, if the operating circuit temperature is higher than the preset data during operation, the sootblower is determined to have a jammed nozzle fault. Of course, the sootblowing time can also be used to determine whether the sootblower is jammed. Furthermore, during comparison, the preset data can be set as a range value; if the communication data falls within this range, it is considered to be compatible; otherwise, it is considered not compatible.

[0054] Furthermore, the coal-fired boiler steam soot blower fault detection method of this embodiment can be applied to the coal-fired boiler steam soot blower fault detection system in any of the above embodiments. Of course, the coal-fired boiler steam soot blower fault detection system in any of the above embodiments can employ the coal-fired boiler steam soot blower fault detection method of this embodiment.

[0055] Further, please refer to Figure 3 and Figure 4 S200: Acquire the operating parameters of the sootblower and feed back the corresponding communication data, including:

[0056] S210. Divide multiple soot blowers into zones.

[0057] S220: Obtain the operating parameters of the soot blowers in different areas and convert them into corresponding communication data.

[0058] S230. Based on the area where the soot blower is located, group the corresponding communication data.

[0059] Therefore, it is possible to simultaneously monitor the synchronous operation of multiple sootblowers, thereby improving detection efficiency. When monitoring the operation of multiple sootblowers, they can be partitioned to associate the monitored operating parameters with those of sootblowers in different areas, allowing for grouped management of the acquired communication data. This partitioned management method improves data management efficiency and facilitates individual analysis and fault diagnosis of the status of sootblowers in different areas.

[0060] It should be noted that there are several ways to partition multiple sootblowers. For example, they can be partitioned according to their location, or according to their function or operating sequence.

[0061] In some embodiments, acquiring the operating parameters of the sootblower and feeding back the corresponding communication data includes: when acquiring the steam temperature, acquiring the pipe wall temperature of the pipes supplying steam flow in the sootblower, and adding a compensation temperature to the pipe wall temperature to acquire the steam temperature. It can be seen that in this embodiment, when acquiring the steam temperature, by acquiring the pipe wall temperature and then performing a compensation correction on the pipe wall temperature, the measurement accuracy is improved, providing a reliable basis for accurately judging the state of the sootblower.

[0062] It should be noted that this embodiment indirectly obtains the steam temperature by measuring the pipe wall temperature, making the installation of the temperature sensing element more convenient and eliminating the need for drilling and sealing operations in the sootblower, thus saving costs. The compensation temperature can be obtained by measuring the temperature difference between the pipe wall and the steam, which can be corrected by the compensation module 400; alternatively, it can be corrected and compensated by a pre-defined program on the communication data.

[0063] In some embodiments, please refer to Figure 4 The system determines and outputs the operating status of the sootblower, including: when the sootblower stops blowing soot and the communication data corresponding to the steam temperature is higher than the corresponding preset data, it outputs internal leakage information; when the communication data corresponding to the operating current is higher than the corresponding preset data, it outputs gun jamming information; when the communication data corresponding to the steam pressure is higher than the corresponding preset data, it outputs overpressure information. Therefore, when the sootblower stops operating, if the acquired steam temperature is higher than the preset data, it indicates that steam leakage has occurred inside the sootblower. If, during sootblower operation, the acquired communication data corresponding to the operating current is higher than the preset data, it indicates that the sootblower is in a jammed state, causing large fluctuations in current. Of course, data on sootblowing time can also be used for collaborative judgment. If, during sootblower operation, the acquired steam pressure is higher than the preset data, it indicates that the sootblower is in an overpressure state. Thus, automatically identifying faults based on preset judgment criteria helps to take timely maintenance measures and reduce losses from malfunctions.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A fault detection system for a steam soot blower in a coal-fired boiler, characterized in that, include: The detection component is used to acquire the operating parameters of the sootblower, including steam temperature, operating current, steam flow rate, steam pressure, and sootblowing time. A signal module, electrically connected to the detection component, is used to receive the operating parameters acquired by the detection component and output corresponding communication data; The control module, electrically connected to the signal module, is used to receive the communication data and compare the communication data with the corresponding preset data to determine and output the operating status of the sootblower.

2. The fault detection system for steam soot blowers in coal-fired boilers according to claim 1, characterized in that, The detection component includes a temperature measuring element electrically connected to the signal module, the temperature measuring element being used to acquire the steam temperature in the soot blower.

3. The fault detection system for steam soot blowers in coal-fired boilers according to claim 2, characterized in that, The temperature measuring element includes a compensation module and a temperature measuring module; The temperature measuring module is used to measure the pipe wall temperature of the pipe fittings in the sootblower that supply steam flow. The compensation module is electrically connected to the temperature measuring module and is used to add a compensation temperature to the pipe wall temperature in order to obtain the steam temperature.

4. The fault detection system for steam soot blowers in coal-fired boilers according to claim 1, characterized in that, The detection components include multiple components, each of which is used to acquire the operating parameters of the soot blowers distributed in different areas.

5. The coal-fired boiler steam soot blower fault detection system according to any one of claims 1-4, characterized in that, It also includes a display module electrically connected to the control module; The control module is also used to determine that the soot blower is in a fault state and output alarm information when the communication data does not match the corresponding preset data; The display module is used to display the alarm information.

6. The fault detection system for steam soot blowers in coal-fired boilers according to claim 5, characterized in that, The control module is specifically configured to output internal leakage information when the soot blower stops blowing soot and the communication data corresponding to the steam temperature is higher than the corresponding preset data; output gun jamming information when the communication data corresponding to the operating current is higher than the corresponding preset data; and output overpressure information when the communication data corresponding to the steam pressure is higher than the corresponding preset data. The alarm information includes the internal leakage information, the gun jamming information, and the overpressure information.

7. A method for detecting faults in a steam soot blower of a coal-fired boiler, characterized in that, The method includes the following steps: Ensure the soot blower is in working order; The system acquires the operating parameters of the sootblower and feeds back the corresponding communication data, wherein the operating parameters include steam temperature, operating current, steam flow rate, steam pressure, and sootblowing time. The operating status of the soot blower is determined and output by comparing the acquired communication data with the corresponding preset data.

8. The method for detecting faults in a steam soot blower of a coal-fired boiler according to claim 7, characterized in that, The process of acquiring the operating parameters of the sootblower and feeding back the corresponding communication data includes: The multiple soot blowers are divided into zones; The operating parameters of the soot blowers in different regions are obtained and converted into corresponding communication data; The communication data is grouped according to the area where the soot blower is located.

9. The method for detecting faults in a steam soot blower of a coal-fired boiler according to claim 7, characterized in that, The process of acquiring the operating parameters of the sootblower and feeding back the corresponding communication data includes: When obtaining the steam temperature, the pipe wall temperature of the pipe fitting supplying steam flow in the sootblower is obtained, and a compensation temperature is added to the pipe wall temperature to obtain the steam temperature.

10. The method for detecting faults in a steam soot blower of a coal-fired boiler according to any one of claims 7-9, characterized in that, The process of determining and outputting the operating status of the sootblower includes: When the soot blower stops blowing soot, and the communication data corresponding to the steam temperature is higher than the corresponding preset data, internal leakage information is output; when the communication data corresponding to the operating current is higher than the corresponding preset data, gun jamming information is output; when the communication data corresponding to the steam pressure is higher than the corresponding preset data, overpressure information is output.

Images