Tile vibration TSI external environment adaptation analysis system and method based on turboset

Abstract

The invention discloses a steam turbine unit-based tile vibration TSI external environment adaptation analysis system and method, and the method comprises the following steps: constructing a closed tile vibration monitoring environment, and further establishing a monitoring analysis and adaptability adjustment system corresponding to temperature and vibration data based on the closed tile vibration monitoring environment; monitoring in real time and specifically regulating and controlling the internal temperature of the closed tile vibration monitoring environment to be kept in a standard temperature threshold range; monitoring resonance data of the tile vibration monitoring element along the time axis, and analyzing and judging whether the tile vibration monitoring element has sensing contact deviation or not; tile vibration value monitoring errors, caused by sensing contact deviation, of the tile vibration monitoring element are adjusted and reduced. The technical problem that in the prior art, when tile vibration monitoring is conducted on a steam turbine, it is difficult to analyze, judge and adaptively adjust the change of the external environment where a monitoring element is located in time, and consequently the monitoring accuracy is affected is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of turbine bearing vibration monitoring, and in particular to a bearing vibration TSI external environment adaptation analysis system and method based on a turbine unit. Background Art

[0002] At present, the steam turbine generator set, also known as the steam turbine, is one of the core equipment in thermal power plants and plays an important role in converting thermal energy into electrical energy. As a rotary steam power device, the working principle of the steam turbine is to accelerate high-temperature and high-pressure steam and spray it to the rotor blades, so as to use the pressure difference formed on both sides of the blades to generate lift to drive the rotor to rotate, and then the rotor drives the main shaft connected to the generator transmission to rotate synchronously, thereby transferring kinetic energy to the generator to generate electricity. At the same time, in order to improve the utilization rate of steam, the rotor is usually set to multiple stages, and stators for increasing the kinetic energy speed of steam are alternately provided between the multiple stages of rotors.

[0003] In the actual operation and application of current steam turbines, the radial vibration of the main shaft relative to its assembled bearing seat is called shaft vibration, and the vibration of the bearing seat and the machine base is called bearing vibration. Usually, the shaft vibration of the main shaft will inevitably be transmitted to the bearing seat and the machine base to form bearing vibration. When the shaft vibration and bearing vibration values ​​exceed the design standard values, it will cause damage to the bearings, impellers and other parts of the steam turbine, causing vibration, noise, wear and other problems in the steam turbine. In severe cases, it will also cause failure and shutdown of the unit, affecting production efficiency and increasing maintenance costs.

[0004] The turbine bearing vibration TSI device, that is, the bearing vibration monitoring part of the turbine safety monitoring system, can monitor the vibration of the turbine bearing in real time, detect abnormal vibration in time, and avoid serious accidents such as equipment damage and shaft breakage caused by excessive vibration, thereby providing a strong guarantee for the safe operation of the turbine. At the same time, it can determine whether the turbine has faults such as imbalance and looseness through analysis of bearing vibration signals. These fault information helps maintenance personnel take timely measures for maintenance, reduce downtime, and improve equipment reliability and availability. In addition, the bearing vibration TSI device can also provide a reference basis for the operation optimization of the turbine, and improve the operation efficiency and stability of the turbine by adjusting and reducing the bearing vibration amplitude.

[0005] However, the monitoring sensor elements of the current bearing vibration TSI device are greatly affected by the external environment. In particular, when the temperature changes inside the turbine unit are more significant, the performance of the sensor's electronic components is easily affected by the temperature change and gradually decays, resulting in reduced monitoring accuracy of the turbine unit bearing vibration values. At the same time, the vibration of the turbine unit can easily cause the installation position of the sensor to loosen, resulting in a sensor contact deviation between the sensor and the bearing seat / machine base, and the deviation state is usually difficult to determine in time, further reducing the accuracy of the turbine unit bearing vibration monitoring, which is not conducive to the economic and safe operation of the unit. Summary of the invention

[0006] To this end, the present invention provides a turbine unit bearing vibration TSI external environment adaptation analysis system and method to solve the technical problem in the prior art that when bearing vibration monitoring is performed on the turbine, it is difficult to timely analyze, judge and adaptively adjust the changes in the external environment of the monitoring element, which affects the monitoring accuracy.

[0007] In order to achieve the above object, the present invention provides the following technical solutions: A method for analyzing the external environment adaptation of bearing vibration TSI of a steam turbine unit includes the following steps: Construct a closed bearing vibration monitoring environment, and further establish a monitoring and analysis system and adaptive adjustment system for corresponding temperature and vibration data based on the closed bearing vibration monitoring environment; According to the monitoring and analysis of the corresponding temperature data and the adaptive adjustment system, the internal temperature of the closed bearing vibration monitoring environment is monitored in real time and adjusted in a targeted manner to be maintained within the standard temperature threshold range; According to the monitoring and analysis of the corresponding vibration data and the adaptive adjustment system, the resonance data of the bearing vibration monitoring element is monitored along the time axis, and the bearing vibration monitoring element is analyzed and judged whether there is a sensor contact deviation; Continue to adjust and eliminate the bearing vibration numerical monitoring error caused by the sensor contact deviation of the bearing vibration monitoring element based on the monitoring analysis and adaptive adjustment system of the corresponding vibration data.

[0008] On the basis of the above technical solution, the present invention is further described as follows: As a further embodiment of the present invention, The construction of a closed bearing vibration monitoring environment specifically includes: A transmission cover structure and a bearing vibration monitoring structure are arranged corresponding to the bearing seat. The transmission cover structure includes a transmission cover body. The transmission cover body is arranged as a cylindrical body with openings at both ends. One end of the transmission cover body is opened and sealed and welded to the bearing seat. The other end of the transmission cover body is opened and sealed and fixed with a packaging cover. The bearing vibration monitoring structure includes a vibration sensor and a sensor assembly seat; The vibration sensor is placed inside the transmission cover body, and the vibration sensor is detachably fixed to the bearing seat through a sensor mounting seat, thereby forming a closed bearing vibration monitoring environment with the help of the transmission cover structure. At this time, the transmission cover structure and the bearing vibration monitoring structure maintain coordinated resonance with the bearing seat respectively.

[0009] As a further embodiment of the present invention, The monitoring and analysis of temperature and vibration data and the adaptive adjustment system based on the closed bearing vibration monitoring environment are further established, specifically including: A housing cavity temperature control structure is arranged inside the transmission housing structure, and the housing cavity temperature control structure includes a temperature sensor and an electric cooling plate. Both the temperature sensor and the electric cooling plate are arranged inside the transmission housing body, and the temperature sensor is electrically connected to the electric cooling plate via an electric control module, so as to establish a monitoring and analysis framework of corresponding temperature data and an adaptive adjustment framework based on a closed bearing vibration monitoring environment; A resonance monitoring component structure and a limit push seat structure are also arranged inside the transmission cover structure; The resonance monitoring component structure includes two groups of oblique eddy current sensors and one group of horizontal eddy current sensors fixed inside the transmission cover body, and the limit push seat structure includes two groups of electric push rod bodies fixed inside the transmission cover body and limit arc plates at their output ends; the detection directions of the two groups of oblique eddy current sensors form an angle of 90° and correspond vertically to the central axis of the vibration sensor respectively, and the detection direction of the horizontal eddy current sensor corresponds to the central axis of the vibration sensor, so that the resonance value of the vibration sensor based on the bearing seat can be monitored in real time by cooperating with the oblique eddy current sensor and the horizontal eddy current sensor, and further the electronic control module can be used to determine whether there is a resonance deviation; The limiting arc plates at the output ends of the two sets of electric push rod bodies are respectively located on both sides of the vibration sensor, and the inner arc surfaces of the two sets of limiting arc plates are arranged facing each other. Therefore, when a resonance deviation is detected, the limiting arc plates are pushed by the two sets of electric push rod bodies to position the vibration sensor, so that the vibration sensor is re-positioned until the resonance deviation is monitored to be reduced to a preset threshold range.

[0010] As a further embodiment of the present invention, The monitoring and analysis of temperature and vibration data and the adaptive adjustment system based on the closed bearing vibration monitoring environment are further established, and specifically include: The transmission cover body further includes a base layer and a magnetic isolation layer and a thermal isolation layer sequentially attached to the inner wall of the base layer to reduce the temperature influence of the outside of the cover on the bearing vibration monitoring structure and the resonance monitoring component structure, and at the same time reduce the electromagnetic interference of the outside of the cover on the resonance monitoring component structure.

[0011] As a further embodiment of the present invention, The monitoring and analysis of the corresponding temperature data and the adaptive adjustment system monitor and control the internal temperature of the closed bearing vibration monitoring environment in real time and keep it within the standard temperature threshold range, specifically including: When the steam turbine unit starts to input hot steam, the temperature sensor of the housing temperature control structure in the monitoring analysis and adaptive adjustment system monitors the housing temperature of the closed bearing vibration monitoring environment inside the transmission housing structure in real time, and sends the monitored housing temperature to the electronic control module in real time; The electronic control module compares and judges according to the preset standard temperature threshold range, and further outputs instructions to control the electric cooling plate of the hood cavity temperature control structure to start cooling when the hood cavity temperature exceeds the standard temperature threshold range, until the hood cavity temperature monitored in real time by the temperature sensor gradually returns to the standard temperature threshold range.

[0012] As a further embodiment of the present invention, The monitoring analysis and adaptive adjustment system according to the corresponding vibration data monitors the resonance data of the bearing vibration monitoring element along the time axis, and analyzes and determines whether the bearing vibration monitoring element has a sensor contact deviation, specifically including: Based on the monitoring analysis and adaptive adjustment system, the time axis parameters are introduced, and the oblique eddy current sensor in the resonance monitoring component structure cooperates with the horizontal eddy current sensor to monitor the resonance data of the bearing seat based on the vibration sensor body in the bearing vibration monitoring structure along the time axis; Since the oblique eddy current sensor and the horizontal eddy current sensor are respectively fixedly connected to the inside of the transmission cover body, when the transmission cover body and the bearing seat maintain coordinated resonance, the two groups of oblique eddy current sensors and one group of horizontal eddy current sensors synchronously maintain coordinated resonance with the bearing seat and the vibration sensor; Further analyzing and judging whether the vibration sensor has a sensor contact deviation according to the resonance data monitored along the time axis, specifically including: when the two groups of oblique eddy current sensors and one group of horizontal eddy current sensors continuously output stable DC voltage signals within a preset error range along the time axis, it is analyzed and judged that the vibration sensor has no sensor contact deviation caused by looseness of the sensor assembly seat; When at least one group of unstable DC voltage signals appears in the two groups of oblique eddy current sensors and one group of horizontal eddy current sensors, and the starting time axis nodes of at least one group of unstable DC voltage signals are respectively located at different time axis nodes beyond the specific error range, it is analyzed and judged that the two groups of oblique eddy current sensors and / or one group of horizontal eddy current sensors have loose connections or excessive performance degradation; When the DC voltage signals output by two groups of oblique eddy current sensors and one group of horizontal eddy current sensors change synchronously and become unstable at the same time axis node within a specific error range, it is analyzed and determined that the vibration sensor produces a sensing contact deviation caused by loose sensor mounting base.

[0013] As a further embodiment of the present invention, The above-mentioned method of continuing to adjust and reduce the bearing vibration value monitoring error caused by the sensor contact deviation of the bearing vibration monitoring element according to the monitoring analysis and adaptive adjustment system of the corresponding vibration data includes: Continue to monitor and analyze the corresponding vibration data and adjust the adaptive system, and control the two sets of electric push rods in the limit push seat structure to push the limit arc plates through the output command of the electric control module, so that the two sets of limit arc plates touch the limit vibration sensor in opposite directions; Since the two sets of electric push rod bodies and the limit arc plates maintain coordinated resonance with the transmission cover body and the bearing seat, when the two sets of limit arc plates touch the limit vibration sensor until the two sets of oblique eddy current sensors and one set of horizontal eddy current sensors continuously output stable DC voltage signals along the time axis, the two sets of electric push rod bodies stop outputting pushing kinetic energy, and at this time the vibration sensor and the bearing seat return to the coordinated resonance state.

[0014] A bearing vibration TSI external environment adaptation analysis system according to the bearing vibration TSI external environment adaptation analysis method based on a steam turbine unit comprises: The analysis and adjustment system building module is used to build a closed bearing vibration monitoring environment, and further establish a monitoring analysis and adaptive adjustment system for corresponding temperature and vibration data based on the closed bearing vibration monitoring environment; The temperature difference monitoring module is used to monitor and analyze the corresponding temperature data and adjust the adaptive system in real time and adjust the internal temperature of the closed bearing vibration monitoring environment to maintain it within the standard temperature threshold range; The resonance deviation monitoring module is used to monitor the resonance data of the bearing vibration monitoring element along the time axis according to the monitoring analysis and adaptive adjustment system of the corresponding vibration data, and analyze and determine whether the bearing vibration monitoring element has a sensor contact deviation; The resonance deviation control module is used to continue to adjust and eliminate the bearing vibration numerical monitoring error caused by the sensor contact deviation of the bearing vibration monitoring element based on the monitoring analysis and adaptive adjustment system of the corresponding vibration data.

[0015] An electronic device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method when executing the computer program.

[0016] A computer-readable storage medium stores computer program instructions, which, when executed by a processor, implement the method described.

[0017] The present invention has the following beneficial effects: The method and system can monitor and control the external environment temperature in real time corresponding to the bearing vibration monitoring position inside the steam turbine unit, thereby ensuring that the bearing vibration monitoring element is always kept in an external environment with relatively stable temperature, effectively reducing the disadvantage of accelerated performance attenuation of the bearing vibration monitoring element due to rapid temperature changes. At the same time, by analyzing the resonance data of each node of the bearing vibration monitoring element, it is possible to effectively determine whether there is looseness between the bearing vibration monitoring element and the bearing seat / machine seat, resulting in sensor contact deviation, and timely adjust and reduce the bearing vibration numerical monitoring error caused by the sensor contact deviation, thereby significantly improving the bearing vibration monitoring accuracy and functional adaptability, and providing a reliable basis for the economical and safe operation of the unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation mode of the present invention or the technical solution in the prior art, the drawings required for the implementation mode or the description of the prior art will be briefly introduced below. The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0019] Figure 1 A schematic diagram of the overall process structure of the turbine unit bearing vibration TSI external environment adaptation analysis method provided in an embodiment of the present invention.

[0020] Figure 2 One of the assembly architecture schematic diagrams of the monitoring analysis and adaptive adjustment system in the turbine unit bearing vibration TSI external environment adaptation analysis method provided in an embodiment of the present invention.

[0021] Figure 3 The second schematic diagram of the assembly architecture of the monitoring analysis and adaptive adjustment system in the turbine unit bearing vibration TSI external environment adaptation analysis method provided in the embodiment of the present invention.

[0022] Figure 4 A schematic cross-sectional structure diagram of a transmission cover structure in a corresponding monitoring analysis and adaptive adjustment system of a bearing vibration TSI external environment adaptation analysis method for a steam turbine unit provided in an embodiment of the present invention.

[0023] Figure 5 The invention provides a method for analyzing the external environment adaptation of the turbine unit bearing vibration TSI. Figure 3 A schematic diagram of the enlarged local structure at point A in the middle.

[0024] Figure 6A schematic diagram of the architecture principle of the resonance monitoring component structure in the monitoring analysis and adaptive adjustment system corresponding to the turbine unit bearing vibration TSI external environment adaptation analysis method provided in an embodiment of the present invention.

[0025] Figure 7 One of the schematic diagrams of the application status of the limit push seat structure in the monitoring analysis and adaptive adjustment system corresponding to the bearing vibration TSI external environment adaptation analysis method of the steam turbine unit provided in an embodiment of the present invention.

[0026] Figure 8 The second schematic diagram of the application status of the limit push seat structure in the corresponding monitoring analysis and adaptive adjustment system of the bearing vibration TSI external environment adaptation analysis method of the steam turbine unit provided in an embodiment of the present invention.

[0027] Fig. 9 A schematic diagram of the overall architecture principle of a turbine unit-based bearing vibration TSI external environment adaptation analysis system provided in an embodiment of the present invention.

[0028] Fig.10 The figure is a schematic diagram of the physical structure of an electronic device according to an embodiment of the present invention.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows: Transmission cover structure 1: transmission cover body 11, base layer 111, magnetic isolation layer 112, temperature isolation layer 113, packaging cover 12; Cover cavity temperature control structure 2: temperature sensor 21, electric cooling sheet 22; Bearing vibration monitoring structure 3: vibration sensor 31, sensor assembly seat 32; Resonance monitoring component structure 4: oblique eddy current sensor 41, horizontal eddy current sensor 42; The position limiting push seat structure 5 includes an electric push rod body 51 and a position limiting arc plate 52; Bearing seat a; Analysis and adjustment system construction module 10; temperature difference monitoring module 20; resonance deviation monitoring module 30; resonance deviation control module 40; electronic device 50: processor 501, memory 502, internal bus 503. DETAILED DESCRIPTION

[0030] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The terms such as "upper", "lower", "left", "right", and "middle" used in this specification are only for the convenience of description and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships should be regarded as within the scope of the invention without substantially changing the technical content.

[0032] like Figures 1 to 8 As shown, an embodiment of the present invention provides an external environment adaptation analysis method based on the bearing vibration TSI of a steam turbine unit, which can monitor and control the external environment temperature in real time corresponding to the bearing vibration monitoring position inside the steam turbine unit, thereby ensuring that the bearing vibration monitoring element is always kept in an external environment with a relatively stable temperature, effectively reducing the disadvantage of accelerated attenuation of the bearing vibration monitoring element performance due to rapid temperature changes. At the same time, by analyzing the resonance data of each node of the bearing vibration monitoring element, it is possible to effectively determine whether there is a loose sensor contact deviation between the bearing vibration monitoring element and the bearing seat a / machine seat, and timely adjust and reduce the bearing vibration numerical monitoring error caused by the sensor contact deviation, significantly improving the accuracy of bearing vibration monitoring and providing a reliable basis for the economical and safe operation of the unit. Specifically comprising the following steps: S1: Construct a closed bearing vibration monitoring environment, and further establish a monitoring analysis and adaptive adjustment system for corresponding temperature and vibration data based on the closed bearing vibration monitoring environment; The specific process is as follows: a transmission cover structure 1 is provided, the transmission cover structure 1 includes a transmission cover body 11, the transmission cover body 11 is provided as a cylindrical body with openings at both ends, and one end of the transmission cover body 11 is welded to the bearing seat a in a closed manner, and the other end of the transmission cover body 11 is sealed and fixed with a packaging cover 12; The bearing vibration monitoring structure 3 includes a vibration sensor 31 and a sensor assembly seat 32. The vibration sensor 31 is placed inside the transmission cover body 11, and the vibration sensor 31 is detachably fixed to the bearing seat a through the sensor assembly seat 32, so as to form a closed bearing vibration monitoring environment with the help of the transmission cover structure 1. At this time, the transmission cover structure 1 and the bearing vibration monitoring structure 3 can maintain cooperative resonance with the bearing seat a; A housing cavity temperature control structure 2 is provided inside the transmission housing body structure 1. The housing cavity temperature control structure 2 includes a temperature sensor 21 and an electric cooling sheet 22. Both the temperature sensor 21 and the electric cooling sheet 22 are provided inside the transmission housing body 11. The temperature sensor 21 is electrically connected to the electric cooling sheet 22 via an electric control module, so as to establish a monitoring and analysis framework of corresponding temperature data and an adaptive adjustment framework based on a closed bearing vibration monitoring environment. A resonance monitoring component structure 4 and a limit push seat structure 5 are also arranged inside the transmission cover body structure 1, wherein the resonance monitoring component structure 4 includes two groups of oblique eddy current sensors 41 and one group of horizontal eddy current sensors 42 fixed inside the transmission cover body 11, and the limit push seat structure 5 includes two groups of electric push rod bodies 51 fixed inside the transmission cover body 11 and limit arc plates 52 at their output ends; specifically, the detection directions of the two groups of oblique eddy current sensors 41 form an angle of 90° and correspond perpendicularly to the central axis of the vibration sensor 31 respectively, and the detection direction of the horizontal eddy current sensor 42 corresponds to the central axis of the vibration sensor 31, so as to monitor the resonance value of the vibration sensor 31 based on the bearing seat a in real time through the coordination of the oblique eddy current sensor 41 and the horizontal eddy current sensor 42, and further judge whether there is a resonance deviation through the electronic control module; The limiting arc plates 52 at the output ends of the two sets of electric push rod bodies 51 are respectively located at the two sides of the vibration sensor 31, and the inner arc surfaces of the two sets of limiting arc plates 52 are arranged facing each other, so that when the presence of resonance deviation is detected, the limiting arc plates 52 are pushed by the two sets of electric push rod bodies 51 to position the vibration sensor 31, so that the vibration sensor 31 is re-positioned until the resonance deviation is reduced to a preset threshold range; The transmission cover body 11 further includes a base layer 111 and a magnetic isolation layer 112 and a temperature isolation layer 113 sequentially attached to the inner wall of the base layer 111, so as to reduce the temperature influence of the outside of the cover on the bearing vibration monitoring structure 3 and the resonance monitoring component structure 4, and at the same time reduce the external electromagnetic interference on the resonance monitoring component structure 4; S2: Based on the monitoring and analysis of the corresponding temperature data and the adaptive adjustment system, the internal temperature of the closed vibration monitoring environment is monitored in real time and adjusted in a targeted manner to be maintained within the standard temperature threshold range; The specific process is as follows: when the steam turbine unit starts to input hot steam, the temperature sensor 21 of the housing cavity temperature control structure 2 in the monitoring analysis and adaptive adjustment system monitors the housing cavity temperature of the closed bearing vibration monitoring environment inside the transmission housing structure 1 in real time, and sends the monitored housing cavity temperature to the external electric control module in real time, and the electric control module compares and judges according to the preset standard temperature threshold range, and further outputs instructions to control the electric cooling plate 22 of the housing cavity temperature control structure 2 to start cooling when the standard temperature threshold range is exceeded, until the housing cavity temperature monitored in real time by the temperature sensor 21 gradually returns to the standard temperature threshold range; S3: According to the monitoring analysis and adaptive adjustment system of the corresponding vibration data, the resonance data of the bearing vibration monitoring element is monitored along the time axis, and the bearing vibration monitoring element is analyzed and judged whether there is a sensor contact deviation; The specific process is as follows: based on the monitoring analysis and adaptive adjustment system, the time axis parameters are introduced, and the oblique eddy current sensor 41 in the resonance monitoring component structure 4 cooperates with the horizontal eddy current sensor 42 to monitor the resonance data of the vibration sensor 31 body based on the bearing seat a in the bearing vibration monitoring structure 3 along the time axis; Since the oblique eddy current sensor 41 and the horizontal eddy current sensor 42 are respectively fixedly connected to the inside of the transmission cover body 11, when the transmission cover body 11 and the bearing seat a maintain cooperative resonance, the two groups of oblique eddy current sensors 41 and one group of horizontal eddy current sensors 42 synchronously maintain cooperative resonance with the bearing seat a and the vibration sensor 31; Therefore, further analyzing and judging whether the vibration sensor 31 has a sensing contact deviation according to the resonance data monitored along the time axis includes: When the two groups of oblique eddy current sensors 41 and the one group of horizontal eddy current sensors 42 continuously output stable DC voltage signals within the preset error range along the time axis, it is analyzed and determined that the vibration sensor 31 does not produce a sensor contact deviation caused by the looseness of the sensor assembly seat 32; When at least one group of unstable DC voltage signals appears in the two groups of oblique eddy current sensors 41 and one group of horizontal eddy current sensors 42, and the starting time axis nodes of at least one group of unstable DC voltage signals are respectively located at different time axis nodes beyond the specific error range, it is analyzed and determined that the two groups of oblique eddy current sensors 41 and / or one group of horizontal eddy current sensors 42 are loosely connected or their performance is excessively attenuated; When the DC voltage signals output by the two groups of oblique eddy current sensors 41 and the one group of horizontal eddy current sensors 42 change synchronously at the same time axis node within a specific error range and become unstable, it is analyzed and determined that the vibration sensor 31 has a sensor contact deviation caused by the looseness of the sensor assembly seat 32; S4: Continue to adjust and reduce the bearing vibration value monitoring error caused by the sensor contact deviation of the bearing vibration monitoring element according to the monitoring analysis of the corresponding vibration data and the adaptive adjustment system; The specific process is: continue to monitor and analyze the corresponding vibration data and the adaptive adjustment system, and control the two groups of electric push rod bodies 51 in the limit push seat structure 5 to push the limit arc plate 52 through the output instructions of the electronic control module, so that the two groups of limit arc plates 52 touch the limit vibration sensor 31 in opposite directions. Since the two groups of electric push rod bodies 51 and the limit arc plates 52 maintain coordinated resonance with the transmission cover body 11 and the bearing seat a, the two groups of limit arc plates 52 touch the limit vibration sensor 31 until the two groups of oblique eddy current sensors 41 and the one group of horizontal eddy current sensors 42 continuously output stable DC voltage signals along the time axis, the two groups of electric push rod bodies 51 stop outputting pushing kinetic energy, and at this time the vibration sensor 31 and the bearing seat a return to the coordinated resonance state.

[0033] Please refer to Fig. 9 The embodiment of the present invention further provides a bearing vibration TSI external environment adaptation analysis system according to the bearing vibration TSI external environment adaptation analysis method based on the steam turbine unit, comprising: The analysis and adjustment system construction module 10 is used to construct a closed bearing vibration monitoring environment, and further establish a monitoring analysis and adaptive adjustment system corresponding to temperature and vibration data based on the closed bearing vibration monitoring environment; The temperature difference monitoring module 20 is used to monitor and adjust the internal temperature of the closed bearing vibration monitoring environment in real time and keep it within the standard temperature threshold range according to the monitoring analysis and adaptive adjustment system of the corresponding temperature data; The resonance deviation monitoring module 30 is used to monitor the resonance data of the bearing vibration monitoring element along the time axis according to the monitoring analysis and adaptive adjustment system of the corresponding vibration data, and analyze and determine whether the bearing vibration monitoring element has a sensor contact deviation; The resonance deviation control module 40 is used to continue to adjust and reduce the bearing vibration value monitoring error caused by the sensor contact deviation of the bearing vibration monitoring element according to the monitoring analysis and adaptive adjustment system of the corresponding vibration data.

[0034] Fig.10 FIG. 1 is a schematic diagram of the physical structure of an electronic device according to an embodiment of the present invention. Fig.10 As shown, the electronic device 50 includes: a processor 501 (processor), a memory 502 (memory) and an internal bus 503; wherein the processor 501 and the memory 502 communicate with each other through the internal bus 503; The processor 501 is used to call the program instructions in the memory 502 to execute the methods provided by the above-mentioned method embodiments, for example, including: constructing a closed bearing vibration monitoring environment, and further establishing a monitoring, analysis and adaptive adjustment system for corresponding temperature and vibration data based on the closed bearing vibration monitoring environment; according to the monitoring, analysis and adaptive adjustment system for corresponding temperature data, real-time monitoring and targeted regulation of the internal temperature of the closed bearing vibration monitoring environment to maintain it within the standard temperature threshold range; according to the monitoring, analysis and adaptive adjustment system for corresponding vibration data, monitoring the resonance data of the bearing vibration monitoring element along the time axis, and analyzing and determining whether the bearing vibration monitoring element has a sensor contact deviation; according to the monitoring, analysis and adaptive adjustment system for corresponding vibration data, adjusting and reducing the bearing vibration numerical monitoring error caused by the sensor contact deviation of the bearing vibration monitoring element.

[0035] The present embodiment provides a non-transitory computer-readable storage medium, which stores computer instructions. The computer instructions enable the computer to execute the methods provided by the above-mentioned method embodiments, for example, including: constructing a closed bearing vibration monitoring environment, and further establishing a monitoring, analysis and adaptive adjustment system for corresponding temperature and vibration data based on the closed bearing vibration monitoring environment; according to the monitoring, analysis and adaptive adjustment system for corresponding temperature data, real-time monitoring and targeted regulation of the internal temperature of the closed bearing vibration monitoring environment to maintain it within a standard temperature threshold range; according to the monitoring, analysis and adaptive adjustment system for corresponding vibration data, monitoring the resonance data of the bearing vibration monitoring element along the time axis, and analyzing and determining whether the bearing vibration monitoring element has a sensor contact deviation; and continuing to adjust and reduce the bearing vibration numerical monitoring error caused by the sensor contact deviation of the bearing vibration monitoring element according to the monitoring, analysis and adaptive adjustment system for corresponding vibration data.

[0036] A person skilled in the art can understand that all or part of the steps of implementing the above method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiment; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk, etc., various storage media that can store program codes.

[0037] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0038] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, or of course by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a server, or a network device, etc.) to execute the methods of each embodiment or some parts of the embodiment.

[0039] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A method for analyzing the external environment adaptation of bearing vibration TSI of a steam turbine unit, characterized in that: The steps include: Construct a closed bearing vibration monitoring environment, and further establish a monitoring and analysis system and adaptive adjustment system for corresponding temperature and vibration data based on the closed bearing vibration monitoring environment; According to the monitoring and analysis of the corresponding temperature data and the adaptive adjustment system, the internal temperature of the closed bearing vibration monitoring environment is monitored in real time and adjusted in a targeted manner to be maintained within the standard temperature threshold range; According to the monitoring and analysis of the corresponding vibration data and the adaptive adjustment system, the resonance data of the bearing vibration monitoring element is monitored along the time axis, and the bearing vibration monitoring element is analyzed and judged whether there is a sensor contact deviation; Continue to adjust and eliminate the bearing vibration numerical monitoring error caused by the sensor contact deviation of the bearing vibration monitoring element based on the monitoring analysis and adaptive adjustment system of the corresponding vibration data.

2. The method for analyzing the external environment adaptation of the bearing vibration TSI of a steam turbine unit according to claim 1 is characterized in that: The construction of a closed bearing vibration monitoring environment specifically includes: A transmission cover structure and a bearing vibration monitoring structure are arranged corresponding to the bearing seat. The transmission cover structure includes a transmission cover body. The transmission cover body is arranged as a cylindrical body with openings at both ends. One end of the transmission cover body is opened and sealed and welded to the bearing seat. The other end of the transmission cover body is opened and sealed and fixed with a packaging cover. The bearing vibration monitoring structure includes a vibration sensor and a sensor assembly seat; The vibration sensor is placed inside the transmission cover body, and the vibration sensor is detachably fixed to the bearing seat through a sensor mounting seat, thereby forming a closed bearing vibration monitoring environment with the help of the transmission cover structure. At this time, the transmission cover structure and the bearing vibration monitoring structure maintain coordinated resonance with the bearing seat respectively.

3. The method for analyzing the external environment adaptation of the bearing vibration TSI of the steam turbine unit according to claim 2 is characterized in that: The monitoring and analysis of temperature and vibration data and the adaptive adjustment system are further established based on the closed bearing vibration monitoring environment, specifically including: A housing cavity temperature control structure is arranged inside the transmission housing structure, and the housing cavity temperature control structure includes a temperature sensor and an electric cooling plate. Both the temperature sensor and the electric cooling plate are arranged inside the transmission housing body, and the temperature sensor is electrically connected to the electric cooling plate via an electric control module, so as to establish a monitoring and analysis framework of corresponding temperature data and an adaptive adjustment framework based on a closed bearing vibration monitoring environment; A resonance monitoring component structure and a limit push seat structure are also arranged inside the transmission cover structure; The resonance monitoring component structure includes two groups of oblique eddy current sensors and one group of horizontal eddy current sensors fixed inside the transmission cover body, and the limit push seat structure includes two groups of electric push rod bodies fixed inside the transmission cover body and limit arc plates at their output ends; the detection directions of the two groups of oblique eddy current sensors form an angle of 90° and correspond vertically to the central axis of the vibration sensor respectively, and the detection direction of the horizontal eddy current sensor corresponds to the central axis of the vibration sensor, so that the resonance value of the vibration sensor based on the bearing seat can be monitored in real time by cooperating with the oblique eddy current sensor and the horizontal eddy current sensor, and further the electronic control module can be used to determine whether there is a resonance deviation; The limiting arc plates at the output ends of the two sets of electric push rod bodies are respectively located on both sides of the vibration sensor, and the inner arc surfaces of the two sets of limiting arc plates are arranged facing each other. Therefore, when a resonance deviation is detected, the limiting arc plates are pushed by the two sets of electric push rod bodies to position the vibration sensor, so that the vibration sensor is re-positioned until the resonance deviation is monitored to be reduced to a preset threshold range.

4. The method for analyzing the external environment adaptation of bearing vibration TSI based on a steam turbine unit according to claim 3 is characterized in that: The monitoring and analysis of temperature and vibration data and the adaptive adjustment system based on the closed bearing vibration monitoring environment are further established, and specifically include: The transmission cover body further includes a base layer and a magnetic isolation layer and a thermal isolation layer sequentially attached to the inner wall of the base layer to reduce the temperature influence of the outside of the cover on the bearing vibration monitoring structure and the resonance monitoring component structure, and at the same time reduce the electromagnetic interference of the outside of the cover on the resonance monitoring component structure.

5. The method for analyzing the external environment adaptation of the bearing vibration TSI of a steam turbine unit according to claim 3 is characterized in that: The monitoring and analysis of the corresponding temperature data and the adaptive adjustment system monitor and control the internal temperature of the closed bearing vibration monitoring environment in real time and keep it within the standard temperature threshold range, specifically including: When the steam turbine unit starts to input hot steam, the temperature sensor of the housing temperature control structure in the monitoring analysis and adaptive adjustment system monitors the housing temperature of the closed bearing vibration monitoring environment inside the transmission housing structure in real time, and sends the monitored housing temperature to the electronic control module in real time; The electronic control module compares and judges according to the preset standard temperature threshold range, and further outputs instructions to control the electric cooling plate of the hood cavity temperature control structure to start cooling when the hood cavity temperature exceeds the standard temperature threshold range, until the hood cavity temperature monitored in real time by the temperature sensor gradually returns to the standard temperature threshold range.

6. The method for analyzing the external environment adaptation of the bearing vibration TSI of the steam turbine unit according to claim 5 is characterized in that: The monitoring analysis and adaptive adjustment system according to the corresponding vibration data monitors the resonance data of the bearing vibration monitoring element along the time axis, and analyzes and determines whether the bearing vibration monitoring element has a sensor contact deviation, specifically including: Based on the monitoring analysis and adaptive adjustment system, the time axis parameters are introduced, and the oblique eddy current sensor in the resonance monitoring component structure cooperates with the horizontal eddy current sensor to monitor the resonance data of the bearing seat based on the vibration sensor body in the bearing vibration monitoring structure along the time axis; Since the oblique eddy current sensor and the horizontal eddy current sensor are respectively fixedly connected to the inside of the transmission cover body, when the transmission cover body and the bearing seat maintain coordinated resonance, the two groups of oblique eddy current sensors and one group of horizontal eddy current sensors synchronously maintain coordinated resonance with the bearing seat and the vibration sensor; Further analyzing and judging whether the vibration sensor has a sensor contact deviation according to the resonance data monitored along the time axis, specifically including: when the two groups of oblique eddy current sensors and one group of horizontal eddy current sensors continuously output stable DC voltage signals within a preset error range along the time axis, it is analyzed and judged that the vibration sensor has no sensor contact deviation caused by looseness of the sensor assembly seat; When at least one group of unstable DC voltage signals appears in the two groups of oblique eddy current sensors and one group of horizontal eddy current sensors, and the starting time axis nodes of at least one group of unstable DC voltage signals are respectively located at different time axis nodes beyond the specific error range, it is analyzed and judged that the two groups of oblique eddy current sensors and / or one group of horizontal eddy current sensors have loose connections or excessive performance degradation; When the DC voltage signals output by two groups of oblique eddy current sensors and one group of horizontal eddy current sensors change synchronously and become unstable at the same time axis node within a specific error range, it is analyzed and determined that the vibration sensor produces a sensing contact deviation caused by loose sensor mounting base.

7. The method for analyzing the external environment adaptation of bearing vibration TSI based on a steam turbine unit according to claim 6 is characterized in that: The above-mentioned method of continuing to adjust and reduce the bearing vibration value monitoring error caused by the sensor contact deviation of the bearing vibration monitoring element according to the monitoring analysis and adaptive adjustment system of the corresponding vibration data includes: Continue to monitor and analyze the corresponding vibration data and adjust the adaptive system, and control the two sets of electric push rods in the limit push seat structure to push the limit arc plates through the output command of the electric control module, so that the two sets of limit arc plates touch the limit vibration sensor in opposite directions; Since the two sets of electric push rod bodies and the limit arc plates maintain coordinated resonance with the transmission cover body and the bearing seat, when the two sets of limit arc plates touch the limit vibration sensor until the two sets of oblique eddy current sensors and one set of horizontal eddy current sensors continuously output stable DC voltage signals along the time axis, the two sets of electric push rod bodies stop outputting pushing kinetic energy, and at this time the vibration sensor and the bearing seat return to the coordinated resonance state.

8. A bearing vibration TSI external environment adaptation analysis system based on the turbine unit bearing vibration TSI external environment adaptation analysis method according to any one of claims 1 to 7, characterized in that: include: The analysis and adjustment system building module is used to build a closed bearing vibration monitoring environment, and further establish a monitoring analysis and adaptive adjustment system for corresponding temperature and vibration data based on the closed bearing vibration monitoring environment; The temperature difference monitoring module is used to monitor and analyze the corresponding temperature data and adjust the adaptive system in real time and adjust the internal temperature of the closed bearing vibration monitoring environment to maintain it within the standard temperature threshold range; The resonance deviation monitoring module is used to monitor the resonance data of the bearing vibration monitoring element along the time axis according to the monitoring analysis and adaptive adjustment system of the corresponding vibration data, and analyze and determine whether the bearing vibration monitoring element has a sensor contact deviation; The resonance deviation control module is used to continue to adjust and eliminate the bearing vibration numerical monitoring error caused by the sensor contact deviation of the bearing vibration monitoring element based on the monitoring analysis and adaptive adjustment system of the corresponding vibration data.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having computer program instructions stored thereon, characterized in that: When the computer program instructions are executed by a processor, the method described in any one of claims 1 to 7 is implemented.

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