阅读说明：本技术 汽轮机轴承的监测技术有效性评价方法及计算机终端 (Method for evaluating effectiveness of monitoring technology of steam turbine bearing and computer terminal ) 是由 李林 杨中卿 徐应军 彭展业 田刚 许天祥 刘纪鹏 黄立军 张圣 于 2021-08-31 设计创作，主要内容包括：本发明涉及汽轮机轴承的监测技术有效性评价方法及计算机终端,包括以下步骤：对待监测设备进行部件拆分,获得待监测设备的部件；待监测设备包括汽轮机轴承和汽轮机轴承的附属设备；对待监测设备的部件进行降级机理分析,获得待监测设备的部件的降级机理；对待监测设备的部件的监测技术进行有效性筛选,获得有效监测技术；根据待监测设备的部件的降级机理和有效监测技术,确定有效监测技术对应的降级机理；根据有效监测技术对应的降级机理,对有效监测技术进行定量评价。本发明可定量的评价油品及其他监测技术对于汽轮机轴承故障的监测有效性,防止监测技术应用的重复及成本的浪费。(The invention relates to a monitoring technology effectiveness evaluation method of a turbine bearing and a computer terminal, comprising the following steps: splitting a component of the equipment to be monitored to obtain the component of the equipment to be monitored; the equipment to be monitored comprises a turbine bearing and auxiliary equipment of the turbine bearing; analyzing a degradation mechanism of the component of the equipment to be monitored to obtain the degradation mechanism of the component of the equipment to be monitored; the method comprises the steps that effectiveness screening is conducted on monitoring technologies of components of equipment to be monitored, and effective monitoring technologies are obtained; determining a degradation mechanism corresponding to an effective monitoring technology according to the degradation mechanism and the effective monitoring technology of the component of the equipment to be monitored; and carrying out quantitative evaluation on the effective monitoring technology according to a degradation mechanism corresponding to the effective monitoring technology. The invention can quantitatively evaluate the monitoring effectiveness of oil products and other monitoring technologies on the bearing faults of the steam turbine and prevent the application repetition of the monitoring technologies and the waste of cost.)

1. The monitoring technology effectiveness evaluation method for the turbine bearing is characterized by comprising the following steps of:

the method comprises the steps that component splitting is conducted on equipment to be monitored, and components of the equipment to be monitored are obtained; the equipment to be monitored comprises a turbine bearing and auxiliary equipment of the turbine bearing;

analyzing a degradation mechanism of the component of the equipment to be monitored to obtain the degradation mechanism of the component of the equipment to be monitored;

the method comprises the steps of screening effectiveness of monitoring technologies of components of the equipment to be monitored to obtain effective monitoring technologies;

determining a degradation mechanism which can be monitored by the effective monitoring technology according to the degradation mechanism of the component of the equipment to be monitored and the effective monitoring technology;

and carrying out quantitative evaluation on the effective monitoring technology according to a degradation mechanism corresponding to the effective monitoring technology.

2. The method for evaluating the effectiveness of the monitoring technology for the steam turbine bearing according to claim 1, wherein the screening of the effectiveness of the monitoring technology for the component of the device to be monitored, and the obtaining of the effective monitoring technology comprises:

acquiring a time interval, a sampling period and time meeting conditions of a monitoring technology of a component of the equipment to be monitored;

and according to the time interval, the sampling period and the time meeting the conditions, carrying out effectiveness screening on the monitoring technology of the part of the equipment to be monitored to obtain an effective monitoring technology.

3. The method for evaluating the effectiveness of a monitoring technique for a steam turbine bearing according to claim 2, wherein the time interval is: the monitoring technology of the components of the equipment to be monitored finds the time interval between the early fault symptom and the failure of the equipment;

the sampling period is as follows: a sampling period of a monitoring technique of a component of the device to be monitored;

the time for satisfying the condition is as follows: the monitoring technology of the component of the device to be monitored interferes with the time at which the device recovers to an acceptable state.

4. The method for evaluating the effectiveness of the monitoring technology of the steam turbine bearing according to claim 2, wherein the screening of the effectiveness of the monitoring technology of the component of the equipment to be monitored according to the time interval, the sampling period and the time satisfying the condition to obtain the effective monitoring technology comprises:

adding the sampling period and the time meeting the condition to obtain a sum of the sampling period and the time meeting the condition;

and screening the effectiveness of the monitoring technology of the component of the equipment to be monitored according to the sum and the time interval to obtain the effective monitoring technology.

5. The method for evaluating the effectiveness of the monitoring technology for the steam turbine bearing according to claim 4, wherein the screening of the effectiveness of the monitoring technology for the component of the equipment to be monitored according to the sum and the time interval to obtain the effective monitoring technology comprises:

comparing the sum to the time interval;

if the sum is smaller than the time interval, judging that the monitoring technology of the component of the equipment to be monitored is effective;

and if the sum is larger than the time interval, judging that the monitoring technology of the part of the equipment to be monitored is invalid.

6. The method for evaluating the effectiveness of the monitoring technique for the steam turbine bearing according to claim 1, wherein the quantitatively evaluating the effective monitoring technique according to the degradation mechanism corresponding to the effective monitoring technique comprises:

determining the effective detection times of the effective monitoring technology for the corresponding degradation mechanism in a preset time period and the occurrence times of the corresponding degradation mechanism;

and carrying out quantitative evaluation on the effective monitoring technology according to the effective detection times and the times of the corresponding degradation mechanism.

7. The method of claim 6, wherein quantitatively evaluating the effective monitoring technique according to the number of effective detections and the number of occurrences of the corresponding degradation mechanism comprises:

dividing the effective detection times and the occurrence times of the corresponding degradation mechanisms to obtain quotient values of the effective detection times and the occurrence times of the corresponding degradation mechanisms;

and carrying out quantitative evaluation on the effective monitoring technology according to the quotient.

8. The method of evaluating the effectiveness of a monitoring technique for a steam turbine bearing of claim 7, wherein the quantitatively evaluating the effectiveness monitoring technique according to the quotient comprises:

judging the area range where the quotient is located according to the quotient;

if the quotient is in a first area range, judging that the effectiveness of the effective monitoring technology is a first level;

if the quotient is in a second area range, judging that the effectiveness of the effective monitoring technology is a second level;

and if the quotient is in a third area range, judging that the effectiveness of the effective monitoring technology is in a third level.

9. The method of evaluating the effectiveness of a monitoring technique for a steam turbine bearing of claim 8, wherein the first area range is: 97% -100%; the second area range is: 80% -97%; the third area range is: 50% -80%;

the first stage is as follows: high effectiveness; the second stage is as follows: medium effectiveness; the third level is low efficiency.

10. A computer terminal, comprising: a memory and a processor;

the memory is used for storing a computer program;

the processor is configured to execute the method for evaluating the effectiveness of the monitoring technique of the steam turbine bearing according to any one of claims 1 to 9 when executing the computer program stored in the memory.

Technical Field

The invention relates to the technical field of turbine fault monitoring, in particular to a method for evaluating the effectiveness of a monitoring technology of a turbine bearing and a computer terminal.

Background

The hydraulic oil and the lubricating oil (collectively called as oil products) are life lines of industrial production, particularly mechanical equipment, and the operating efficiency, reliability and service life of the mechanical equipment are determined by the condition of the oil. It has long been known, in practice, that: parameters such as solid particle size, moisture and working temperature in oil are main factors causing oil quality change, most equipment accidents are related to oil pollution, normal operation of lubrication and hydraulic equipment is seriously influenced, and great labor waste and economic loss are caused. The oil contamination not only causes the performance degradation of machinery and lubricating oil, reduces the service life of mechanical equipment and oil, but also makes the equipment in a dangerous state, so the monitoring of the contamination degree of the oil port has extremely important significance.

With the continuous development of oil offline and online analysis technologies, various oil monitoring technologies are applied to the monitoring and diagnosis of the turbine bearing fault, but the management effectiveness of the current monitoring technology on the turbine fault mode cannot be quantitatively evaluated, most of the current monitoring technologies adopt qualitative evaluation, namely the fault mode can be monitored, the cost can be accepted, the monitoring technology can be considered to be additionally installed, and the qualitative evaluation mode is lack of scientificity.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a method for evaluating the effectiveness of a monitoring technique for a turbine bearing and a computer terminal, aiming at the above-mentioned defects in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: the monitoring technology effectiveness evaluation method for constructing the turbine bearing comprises the following steps:

the method comprises the steps that component splitting is conducted on equipment to be monitored, and components of the equipment to be monitored are obtained; the equipment to be monitored comprises a turbine bearing and auxiliary equipment of the turbine bearing;

analyzing a degradation mechanism of the component of the equipment to be monitored to obtain the degradation mechanism of the component of the equipment to be monitored;

the method comprises the steps of screening effectiveness of monitoring technologies of components of the equipment to be monitored to obtain effective monitoring technologies;

determining a degradation mechanism which can be monitored by the effective monitoring technology according to the degradation mechanism of the component of the equipment to be monitored and the effective monitoring technology;

and carrying out quantitative evaluation on the effective monitoring technology according to a degradation mechanism corresponding to the effective monitoring technology.

In the method for evaluating the effectiveness of the monitoring technology of the steam turbine bearing, the effectiveness screening is performed on the monitoring technology of the component of the equipment to be monitored, and the obtained effective monitoring technology comprises the following steps:

acquiring a time interval, a sampling period and time meeting conditions of a monitoring technology of a component of the equipment to be monitored;

and according to the time interval, the sampling period and the time meeting the conditions, carrying out effectiveness screening on the monitoring technology of the part of the equipment to be monitored to obtain an effective monitoring technology.

In the method for evaluating the effectiveness of the monitoring technology of the steam turbine bearing, the time interval is as follows: the monitoring technology of the components of the equipment to be monitored finds the time interval between the early fault symptom and the failure of the equipment;

the sampling period is as follows: a sampling period of a monitoring technique of a component of the device to be monitored;

the time for satisfying the condition is as follows: the monitoring technology of the component of the device to be monitored interferes with the time at which the device recovers to an acceptable state.

In the method for evaluating the effectiveness of the monitoring technology of the steam turbine bearing, the effectiveness screening is performed on the monitoring technology of the component of the equipment to be monitored according to the time interval, the sampling period and the time meeting the condition, and the obtained effective monitoring technology comprises the following steps:

adding the sampling period and the time meeting the condition to obtain a sum of the sampling period and the time meeting the condition;

and screening the effectiveness of the monitoring technology of the component of the equipment to be monitored according to the sum and the time interval to obtain the effective monitoring technology.

In the method for evaluating the effectiveness of the monitoring technology of the steam turbine bearing, the effective screening of the monitoring technology of the component of the equipment to be monitored according to the sum and the time interval to obtain the effective monitoring technology comprises the following steps:

comparing the sum to the time interval;

if the sum is smaller than the time interval, judging that the monitoring technology of the component of the equipment to be monitored is effective;

and if the sum is larger than the time interval, judging that the monitoring technology of the part of the equipment to be monitored is invalid.

In the method for evaluating the effectiveness of the monitoring technology of the steam turbine bearing, the quantitative evaluation of the effective monitoring technology according to the degradation mechanism corresponding to the effective monitoring technology comprises the following steps:

determining the effective detection times of the effective monitoring technology for the corresponding degradation mechanism in a preset time period and the occurrence times of the corresponding degradation mechanism;

and carrying out quantitative evaluation on the effective monitoring technology according to the effective detection times and the times of the corresponding degradation mechanism.

In the method for evaluating the effectiveness of the monitoring technology for the turbine bearing according to the present invention, the quantitatively evaluating the effective monitoring technology according to the effective detection times and the occurrence times of the corresponding degradation mechanism includes:

dividing the effective detection times and the occurrence times of the corresponding degradation mechanisms to obtain quotient values of the effective detection times and the occurrence times of the corresponding degradation mechanisms;

and carrying out quantitative evaluation on the effective monitoring technology according to the quotient.

In the method for evaluating the effectiveness of the monitoring technology of the steam turbine bearing, the quantitative evaluation of the effective monitoring technology according to the quotient comprises the following steps:

judging the area range where the quotient is located according to the quotient;

if the quotient is in a first area range, judging that the effectiveness of the effective monitoring technology is a first level;

if the quotient is in a second area range, judging that the effectiveness of the effective monitoring technology is a second level;

and if the quotient is in a third area range, judging that the effectiveness of the effective monitoring technology is in a third level.

In the method for evaluating the effectiveness of the monitoring technology of the steam turbine bearing, the first area range is as follows: 97% -100%; the second area range is: 80% -97%; the third area range is: 50% -80%;

the first stage is as follows: high effectiveness; the second stage is as follows: medium effectiveness; the third level is low efficiency.

The present invention also provides a computer terminal comprising: a memory and a processor;

the memory is used for storing a computer program;

the processor is used for executing the computer program stored in the memory and executing the method for evaluating the effectiveness of the monitoring technology of the turbine bearing.

The monitoring technology effectiveness evaluation method of the steam turbine bearing has the following beneficial effects: the method comprises the following steps: splitting a component of the equipment to be monitored to obtain the component of the equipment to be monitored; the equipment to be monitored comprises a turbine bearing and auxiliary equipment of the turbine bearing; analyzing a degradation mechanism of the component of the equipment to be monitored to obtain the degradation mechanism of the component of the equipment to be monitored; the method comprises the steps that effectiveness screening is conducted on monitoring technologies of components of equipment to be monitored, and effective monitoring technologies are obtained; determining a degradation mechanism corresponding to an effective monitoring technology according to the degradation mechanism and the effective monitoring technology of the component of the equipment to be monitored; and carrying out quantitative evaluation on the effective monitoring technology according to a degradation mechanism corresponding to the effective monitoring technology. The invention can quantitatively evaluate the monitoring effectiveness of oil products and other monitoring technologies on the bearing faults of the steam turbine and prevent the application repetition of the monitoring technologies and the waste of cost.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic flow chart of a method for evaluating the effectiveness of a monitoring technique for a turbine bearing according to an embodiment of the present invention.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

Referring to fig. 1, a schematic flow chart of an alternative embodiment of the method for evaluating the effectiveness of the monitoring technology of the steam turbine bearing provided by the present invention is shown.

Specifically, as shown in fig. 1, the method for evaluating the effectiveness of the monitoring technology of the steam turbine bearing comprises the following steps:

and S101, splitting components of the equipment to be monitored to obtain the components of the equipment to be monitored. The equipment to be monitored comprises a turbine bearing and auxiliary equipment of the turbine bearing.

It is to be understood that monitoring techniques and design principles are directed to degradation mechanisms of components and cannot be managed in a failure mode. Therefore, in the embodiment of the present invention, the parts of the turbine bearing and the parts of the auxiliary equipment of the turbine bearing are first separated to obtain each part of the turbine bearing and each part of the auxiliary equipment of the turbine bearing. Such as bearings, bearing housings, etc.

Step S102, carrying out degradation mechanism analysis on the component of the equipment to be monitored to obtain the degradation mechanism of the component of the equipment to be monitored.

Specifically, after each part of the turbine bearing and each part of the auxiliary equipment of the turbine bearing are obtained through splitting in step S101, the degradation mechanism of each part is further written. Where degradation is the time preamble of a failure. The mechanism represents the root cause of the degradation of the component, such as talent, wear, corrosion, and the like. It will be appreciated that bearing designs vary from one type to another, with differences in the mechanism of component degradation.

And S103, screening the effectiveness of the monitoring technology of the component of the equipment to be monitored to obtain the effective monitoring technology.

In some embodiments, the screening of effectiveness of monitoring technologies of components of a device to be monitored, and the obtaining of effective monitoring technologies includes: acquiring a time interval, a sampling period and time meeting conditions of a monitoring technology of a component of equipment to be monitored; and according to the time interval, the sampling period and the time meeting the conditions, carrying out effectiveness screening on the monitoring technology of the component of the equipment to be monitored to obtain an effective monitoring technology.

Optionally, the time interval is: monitoring techniques for components of a device to be monitored discover time intervals in which early failure symptoms are distant from device failure. The sampling period is as follows: a sampling period of a monitoring technique of a component of a device to be monitored. The time for satisfying the condition is: the monitoring technology of the component of the device to be monitored interferes with the time at which the device returns to an acceptable state.

In some embodiments, according to the time interval, the sampling period, and the time satisfying the condition, the effectiveness screening is performed on the monitoring technology of the component of the device to be monitored, and the obtaining of the effective monitoring technology includes: adding the sampling period and the time meeting the condition to obtain a sum of the sampling period and the time meeting the condition; and screening the effectiveness of the monitoring technology of the component of the equipment to be monitored according to the sum and the time interval to obtain the effective monitoring technology.

In some embodiments, the screening of effectiveness of the monitoring technique of the component of the device to be monitored according to the sum and the time interval includes: comparing the sum value with a time interval; if the sum is smaller than the time interval, judging that the monitoring technology of the component of the equipment to be monitored is effective; and if the sum is larger than the time interval, judging that the monitoring technology of the part of the equipment to be monitored is invalid.

It can be understood that, in the embodiment of the present invention, the monitoring technology of the component of the device to be monitored includes: the system comprises a lubricating oil monitoring technology, a vibration monitoring technology, a performance test monitoring technology, an inspection monitoring technology and an infrared thermal imaging monitoring technology.

Specifically, a certain monitoring technology is considered to be effective monitoring, and monitoring is carried out on the premise of meeting the on-site intervention value.

For example, let a monitoring technique find the time interval between early failure symptoms and equipment failure be: t, the sampling period of the monitoring technology is as follows: t1, the time that meets the requirements of the enterprise and enables it to intervene in the recovery of the equipment to an acceptable state is: t2, when T1+ T2< T, the monitoring technology is determined to be an effective monitoring technology, otherwise, the monitoring technology is determined to be an ineffective monitoring technology.

And step S104, determining a degradation mechanism which can be monitored by the effective monitoring technology according to the degradation mechanism and the effective monitoring technology of the component of the equipment to be monitored.

Specifically, for the monitoring technologies determined to be valid, the degradation mechanism corresponding to each valid monitoring technology may be written in a column according to the list of the degradation mechanisms of the column write. Where a monitoring technique can cope with multiple degradation mechanisms, the sequence writing should be repeated. For example, taking the degradation mechanism of the bearing as an example, a list of the degradation mechanisms of each effective monitoring technique is written, and is specifically shown in table 1.

Component part

Mechanism of degradation

Lubricating oil monitoring

Performance testing

Patrol inspection

Vibration

Infrared ray

Bearing assembly

a

Y

N

N

Y

N

Bearing assembly

b

N

Y

Y

Y

N

Bearing assembly

c

Y

N

N

Y

N

Bearing assembly

d

Y

N

N

Y

Y

As shown in Table 1, the degradation mechanism of the turbine bearing includes: a. b, c and d, and the effective monitoring technology comprises the following steps: the monitoring method comprises a lubricating oil monitoring technology, a performance test monitoring technology, a patrol monitoring technology, a vibration monitoring technology and an infrared thermal imaging monitoring technology. In table 1, Y indicates that the monitoring technique can monitor the degradation mechanism, and N indicates that the monitoring technique cannot monitor the degradation mechanism. As shown in Table 1, the degradation mechanisms that can be monitored by the oil monitoring techniques include: a degradation mechanism a, a degradation mechanism c, and a degradation mechanism d; degradation mechanisms that may be monitored by performance test monitoring techniques include: a degradation mechanism b; degradation mechanisms that may be monitored by the patrol monitoring techniques include: a degradation mechanism b; degradation mechanisms that vibration monitoring techniques can monitor include: a degradation mechanism a, a degradation mechanism b, a degradation mechanism c, and a degradation mechanism d; degradation mechanisms that can be monitored by infrared thermographic monitoring techniques include: a degradation mechanism d.

And S105, carrying out quantitative evaluation on the effective monitoring technology according to the degradation mechanism corresponding to the effective monitoring technology.

In some embodiments, quantitatively evaluating the effective monitoring technique according to the degradation mechanism corresponding to the effective monitoring technique includes: determining the effective detection times of the effective monitoring technology for the corresponding degradation mechanism in a preset time period and the occurrence times of the corresponding degradation mechanism; and carrying out quantitative evaluation on the effective monitoring technology according to the effective detection times and the occurrence times of the corresponding degradation mechanism.

It can be understood that, in the embodiment of the present invention, the number of effective detections of the corresponding degradation mechanism by the effective monitoring technology in the preset time period and the number of occurrences of the corresponding degradation mechanism are the number of effective detections of each effective monitoring technology in the preset time period and the number of occurrences of the corresponding degradation mechanism by the corresponding degradation mechanism.

The effective detection times of each effective monitoring technology for the corresponding degradation mechanism in the preset time period can be obtained through the reliability data acquisition of the effective monitoring technology, or can be obtained according to test data provided by the equipment supply end.

The occurrence frequency of the degradation mechanism corresponding to each effective monitoring technology in a preset time period can be obtained through the reliability data acquisition of the effective monitoring technology, or can be obtained according to test data provided by the equipment supply end.

Alternatively, the preset time period may be 5 years.

In some embodiments, quantitatively evaluating the effective monitoring technique based on the number of effective detections and the number of occurrences of the corresponding degradation mechanism comprises: dividing the effective detection times with the occurrence times of the corresponding degradation mechanism to obtain a quotient value of the effective detection times and the occurrence times of the corresponding degradation mechanism; and carrying out quantitative evaluation on the effective monitoring technology according to the quotient.

Specifically, the formula can be expressed as:

wherein, α is the effective detection frequency of a certain effective monitoring technology for a certain degradation mechanism within 5 years, and β is the frequency of occurrence of the certain degradation mechanism corresponding to the effective monitoring technology within 5 years.

In some embodiments, quantitatively evaluating the effective monitoring technique according to the quotient comprises: judging the area range where the quotient is located according to the quotient; if the quotient is in the first area range, judging that the effectiveness of the effective monitoring technology is the first level; if the quotient is in the second area range, judging the effectiveness of the effective monitoring technology to be a second level; and if the quotient is in the third area range, judging that the effectiveness of the effective monitoring technology is in a third level.

Optionally, the first area range is: 97% -100%; the second area range is: 80% -97%; the third range of regions is: 50 to 80 percent.

Optionally, the first stage is: high effectiveness; the second stage is as follows: medium effectiveness; the third level is low effectiveness.

Specifically, when the quotient obtained through calculation reaches more than 97%, the effective monitoring technology is determined to be high-effectiveness (H), when the quotient reaches more than 80%, the effective monitoring technology is determined to be medium-effectiveness (M), and when the quotient reaches more than 50%, the effective monitoring technology is determined to be low-effectiveness (L).

For example, the effectiveness of the effective monitoring technology on all degradation mechanisms of the bearing is evaluated by taking the degradation mechanisms as dimensions, wherein table 2 is an example of effective wear monitoring of the turbine bearing after comprehensive effectiveness analysis.

As shown in table 2, for the degradation mechanism a of the bearing, the effectiveness of the lubrication monitoring technique is high, and the effectiveness of the vibration monitoring technique is high; for the degradation mechanism b of the bearing, the effectiveness of the performance test monitoring technology is medium effectiveness, the effectiveness of the patrol monitoring technology is low effectiveness, and the effectiveness of the vibration monitoring technology is high effectiveness; for the degradation mechanism c of the bearing, the effectiveness of the oil monitoring technology is medium effectiveness, and the effectiveness of the vibration monitoring technology is medium effectiveness; for the degradation mechanism d of the bearing, the effectiveness of the oil monitoring technology is medium, the effectiveness of the vibration monitoring technology is high, and the effectiveness of the infrared monitoring technology is low.

The method for evaluating the effectiveness of the monitoring technology of the steam turbine bearing takes a degradation mechanism as a dimension, when multiple monitoring technologies coexist for the same degradation mechanism, if the high-effectiveness monitoring technology exists, the high-effectiveness monitoring technology is reserved, and the rest is cancelled; if one high-effectiveness monitoring technology is equivalent, two low-effectiveness monitoring technologies or three low-effectiveness monitoring technologies are needed; if the redundant monitoring technology exists, the technology needs to be deleted, and the economic efficiency and operability principles of the technology are comprehensively considered; if the level and quantity requirements are not met, the degradation mechanism is determined to be unable to be effectively monitored, and the reliability of the degradation mechanism needs to be managed by adopting a method of regular disassembly and the like. The method of the embodiment of the invention can quantitatively select the most effective monitoring means and prevent resource waste caused by excessive redundancy.

Further, the method for evaluating the effectiveness of the monitoring technology of the steam turbine bearing in the embodiment of the present invention takes the monitoring technology as a dimension, and since the coverage degree of the monitoring technology on the degradation mechanism of the steam turbine bearing is an important index introduced by the monitoring technology, on the premise that the cost of the monitoring technology is limited, the monitoring technology with high technical coverage rate can be introduced as much as possible, taking the lubricating oil monitoring technology as an example, in table 2, the coverage degree of the degradation mechanism is H + M, the cumulative coverage degree is 257%, which is much higher than 50% of the infrared thermal imaging monitoring technology.

The method for evaluating the effectiveness of the monitoring technology of the steam turbine bearing can quantitatively evaluate the monitoring effectiveness of oil products and other monitoring technologies on the faults of the steam turbine bearing, provides a quantitative evaluation method through multiple dimensions such as FMEA analysis, effectiveness monitoring, reliability data and the like under the condition that the existing market monitoring technology is various, gives an optimal scheme to engineers in the early stage of reporting the reliability of the monitoring technology, and prevents the repetition of the application of the monitoring technology, the waste of cost and equipment risks caused by a large amount of reconstruction; in addition, the quality of the similar monitoring technology can be quantitatively compared from the monitoring effect angle, and a convenient and effective basis is provided for the technical model selection of a monitoring engineer.

The present invention also provides a computer terminal comprising: a memory and a processor.

The memory is for storing a computer program.

When the processor is used for executing the computer program stored in the memory, the method for evaluating the effectiveness of the monitoring technology of the steam turbine bearing disclosed by the embodiment of the invention is executed.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.