Monitoring method and system for bearing bush temperature, storage medium, and electronic device

Abstract

The present application discloses a method and system for monitoring the bearing pad temperature, a storage medium, and an electronic device, relating to the technical field of automatic fault detection. The main purpose is to solve the problem that the existing analysis and processing of high bearing pad temperature cannot be generalized and systematized, and the guiding effect is limited in practical applications. It includes: real-time monitoring of the pad temperature data of the target bearing; if the pad temperature data exceeds a preset pad temperature threshold, detecting whether the pad temperature data is accurate; if the detection result of the pad temperature data is accurate, starting a bearing pad temperature processing thread matching the target bearing.

Description

Technical Field

[0001] The present application relates to the technical field of automatic fault detection, and particularly to a method and system for monitoring bearing pad temperature, a storage medium, and an electronic device. Background Art

[0002] Centrifugal compressor equipment is widely used in many fields of the national economy such as oil refining, machinery, metallurgy, petrochemical, coal chemical, building materials, aerospace, and medical. Since it is the core equipment of the device, it is necessary to ensure long-term stable operation. With the development of centrifugal compressor equipment towards large-scale, energy-saving, and intelligent, the requirements for its index parameters are getting higher and higher, and the related problems are becoming more and more complex. Generally, centrifugal compressor equipment mainly consists of two major components: a rotor and a stator. The stator also includes important components such as support bearings and thrust bearings. Among them, the bearing pad temperature is an important monitoring index of centrifugal compressor equipment. High bearing pad temperature is a problem that often occurs in the daily operation of centrifugal compressor equipment. Excessive bearing pad temperature is extremely likely to lead to a reduction in the performance of centrifugal compressor equipment and the inability to achieve long-term stable operation.

[0003] At present, most of the related research on the problem of high bearing pad temperature is analyzed and processed for individual cases, and it cannot be generalized and systematized, and the guiding effect in practical applications is limited. Therefore, there is an urgent need for a method for monitoring bearing pad temperature to achieve the generalization of the solution. Summary of the Invention

[0004] In view of this, the present application provides a method and system for monitoring bearing pad temperature, a storage medium, and an electronic device, mainly aiming at the problem that the existing analysis and processing of high bearing pad temperature cannot be generalized and systematized, and the guiding effect in practical applications is limited.

[0005] According to one aspect of the present application, a method for monitoring bearing pad temperature is provided, including:

[0006] Real-time monitoring of the bearing pad temperature data of the target bearing;

[0007] If the bearing pad temperature data exceeds a preset bearing pad temperature threshold, then detect whether the bearing pad temperature data is accurate;

[0008] If the detection result of the bearing pad temperature data is accurate, then start a bearing pad temperature processing thread matching the target bearing.

[0009] Preferably, the bearing pad temperature processing thread includes an on-line adjustment thread and a parking rectification thread;

[0010] The on-line adjustment thread is used to represent the bearing pad temperature processing thread carried out under the equipment operation state;

[0011] The parking rectification thread is used to represent the bearing pad temperature treatment thread carried out in the equipment stop state.

[0012] Preferably, if the detection result of the pad temperature data is accurate, start the bearing pad temperature treatment thread matching the target bearing, specifically including:

[0013] If the detection result of the pad temperature data is accurate, start the online adjustment thread to control the pad temperature of the target bearing when the target equipment is in the running state;

[0014] Receive the end instruction of the online adjustment thread, obtain the current pad temperature data of the target bearing, and determine whether the current pad temperature data exceeds the preset pad temperature threshold.

[0015] Preferably, after determining whether the current pad temperature data exceeds the preset pad temperature threshold, the method further includes:

[0016] If the current pad temperature data exceeds the preset pad temperature threshold, trigger the equipment parking interlock event and start the parking rectification thread to control the pad temperature of the target bearing when the target equipment is in the stop state.

[0017] Preferably, the online adjustment thread includes an oil quantity control sub-thread and an oil product control sub-thread.

[0018] Preferably, the parking rectification thread includes a bearing bush trimming sub-thread, a bearing bush installation sub-thread, a pipeline cleaning sub-thread, and an oil inlet hole correction sub-thread.

[0019] Preferably, the method further includes:

[0020] Receive the end instruction of the parking rectification thread and control the target equipment to resume the running state.

[0021] According to another aspect of the present application, a monitoring system for bearing pad temperature is provided, including:

[0022] A monitoring module for real-time monitoring of the pad temperature data of the target bearing;

[0023] A detection module for detecting whether the pad temperature data is accurate if the pad temperature data exceeds the preset pad temperature threshold;

[0024] A start module for starting the bearing pad temperature treatment thread matching the target bearing if the detection result of the pad temperature data is accurate.

[0025] Preferably, the bearing pad temperature treatment thread includes an online adjustment thread and a parking rectification thread;

[0026] The online adjustment thread is used to represent the bearing pad temperature processing thread carried out under the operating state of the device;

[0027] The shutdown rectification thread is used to represent the bearing pad temperature processing thread carried out under the stopped state of the device.

[0028] Preferably, the startup module specifically includes:

[0029] A startup unit, configured to start the online adjustment thread if the detection result of the pad temperature data is accurate, so as to control the pad temperature of the target bearing when the target device is in the operating state;

[0030] A judgment unit, configured to receive the end instruction of the online adjustment thread, obtain the current pad temperature data of the target bearing, and judge whether the current pad temperature data exceeds the preset pad temperature threshold.

[0031] Preferably, after the judgment unit, the module further includes:

[0032] A trigger unit, configured to trigger a device shutdown interlock event if the current pad temperature data exceeds the preset pad temperature threshold, and start the shutdown rectification thread, so as to control the pad temperature of the target bearing when the target device is in the stopped state.

[0033] Preferably, the online adjustment thread includes an oil quantity control sub-thread and an oil product control sub-thread.

[0034] Preferably, the shutdown rectification thread includes a bearing bush trimming sub-thread, a bearing bush installation sub-thread, a pipeline cleaning sub-thread, and an oil inlet hole correction sub-thread.

[0035] Preferably, the system further includes:

[0036] A recovery module, configured to receive the end instruction of the shutdown rectification thread and control the target device to resume the operating state.

[0037] According to another aspect of the present application, there is provided a storage medium, in which at least one executable instruction is stored, and the executable instruction enables a processor to execute the operations corresponding to the above-mentioned bearing pad temperature monitoring method.

[0038] According to still another aspect of the present application, there is provided a terminal, including: a processor, a memory, a communication interface, and a communication bus, and the processor, the memory, and the communication interface complete communication with each other through the communication bus;

[0039] The memory is used to store at least one executable instruction, and the executable instruction enables the processor to execute the operations corresponding to the above-mentioned bearing pad temperature monitoring method.

[0040] By the above technical solution, the technical solution provided by the embodiment of the present application has at least the following advantages:

[0041] The present application provides a method and system for monitoring the bearing pad temperature, a storage medium, and an electronic device. First, the pad temperature data of the target bearing is monitored in real time; secondly, if the pad temperature data exceeds a preset pad temperature threshold, it is detected whether the pad temperature data is accurate; finally, if the detection result of the pad temperature data is accurate, a bearing pad temperature processing thread matching the target bearing is started. Compared with the prior art, in the embodiment of the present application, when it is monitored that the pad temperature data of the target bearing exceeds the preset pad temperature threshold, it is first detected whether the pad temperature data is incorrect, so as to avoid the waste of monitoring resources caused by incorrect detection data; further, after it is determined that the pad temperature data of the target bearing does exceed the standard, the bearing pad temperature processing thread is started to control the pad temperature data of the target bearing, thereby realizing the generalization and systematization of bearing pad temperature monitoring.

[0042] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are hereinafter specifically exemplified. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0044] Figure 1 Shows a flowchart of a method for monitoring the bearing pad temperature provided by an embodiment of the present application;

[0045] Figure 2 Shows a schematic diagram of reaming at the bearing throttle plug provided by an embodiment of the present application;

[0046] Figure 3 Shows a schematic diagram of adding an oil baffle to the bearing provided by an embodiment of the present application;

[0047] Figure 4 Shows an analysis diagram of factors for high bearing pad temperature provided by an embodiment of the present application;

[0048] Figure 5 Shows the processing flow of the problem of high bearing pad temperature provided by an embodiment of the present application;

[0049] Figure 6 Shows a block diagram of a system for monitoring the bearing pad temperature provided by an embodiment of the present application;

[0050] Figure 7 The figure shows a schematic structural diagram of a terminal provided by an embodiment of the present application. Detailed implementation manners

[0051] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0052] At the same time, it should be understood that, for the sake of description, the dimensions of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship.

[0053] The following description of at least one exemplary embodiment is merely illustrative and in no way limits the present application and its application or use.

[0054] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the specification.

[0055] It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0056] Embodiments of the present application can be applied to a computer system / server, which can operate together with many other general-purpose or special-purpose computing system environments or configurations. Examples of well-known computing systems, environments, and / or configurations suitable for use with a computer system / server include, but are not limited to: personal computer systems, server computer systems, thin clients, thick clients, handheld or laptop devices, microprocessor-based systems, set-top boxes, programmable consumer electronics, network personal computers, minicomputer systems, mainframe computer systems, and distributed cloud computing technology environments including any of the above systems, and so on.

[0057] The computer system / server can be described in the general context of computer system-executable instructions, such as program modules, executed by a computer system. Generally, program modules can include routines, programs, object programs, components, logic, data structures, and so on, which perform specific tasks or implement specific abstract data types. The computer system / server can be implemented in a distributed cloud computing environment, where tasks are executed by remote processing devices linked through a communication network. In a distributed cloud computing environment, program modules can be located on local or remote computing system storage media including storage devices.

[0058] An embodiment of the present application provides a method for monitoring the bearing pad temperature, as Figure 1 shown, the method includes:

[0059] 101. Real-time monitor the pad temperature data of the target bearing.

[0060] Among them, the pad temperature data refers to the bearing shell temperature data of the bearing. The current execution end can be the control system of the compressor equipment, and the bearing shell temperature data of the bearing can be obtained and monitored in real time through a temperature sensor set at the bearing position.

[0061] It should be noted that the bearing shell is the part of the sliding bearing that contacts the journal. Its shape is a semi-cylindrical surface in the shape of a tile, with a smooth surface, and is usually made of wear-resistant materials such as Babbitt alloy. When the sliding bearing is working, a very thin oil film is required between the bearing shell and the rotating shaft to play a lubricating role. If the lubrication is poor, there will be direct friction between the bearing shell and the rotating shaft, resulting in a very high temperature. Although the bearing shell is made of special wear-resistant and high-temperature-resistant alloy materials, the high temperature generated by direct friction is still sufficient to burn it out. In addition, the bearing shell may also be burned due to factors such as excessive load, too high temperature, impurities in the lubricating oil or abnormal viscosity, etc., resulting in damage to the sliding bearing. In addition, in addition to the most direct temperature increase, the manifestations of too high bearing pad temperature also include the temperature slowly rising close to the alarm or even interlock value, the pad temperature showing irregular fluctuations, and the bearing pad temperature rising after the compressor equipment increases the load. Therefore, in the case where it is difficult to directly obtain the temperature, it is also possible to judge whether the pad temperature exceeds the standard by judging whether other manifestations of too high pad temperature occur.

[0062] 102. If the pad temperature data exceeds the preset pad temperature threshold, detect whether the pad temperature data is accurate.

[0063] In the embodiment of the present application, if it is monitored that the pad temperature data of the target bearing exceeds the preset pad temperature threshold (which can be specifically configured according to the material of the bearing shell, and usually can be configured between 95°C and 105°C), it is first necessary to confirm whether the obtained pad temperature data is accurate to avoid affecting the operation of the compressor equipment due to false alarms. Specifically, to detect whether the pad temperature data is accurate, the wiring terminals of the temperature sensor (such as a temperature measuring resistor) can be checked first, and impurities such as oil stains and dust can be cleaned; further, when there is a single-point high temperature, the measurement interface of the current high-temperature point can be replaced with the corresponding other measurement interface to determine whether there is a fault in the temperature measuring resistor wire, so as to eliminate the over-threshold pad temperature data caused by the failure of the temperature measuring equipment. In addition, if the resistance wire is judged to be faulty, the faulty measuring point can be forced to be corrected or shielded, etc., and the embodiment of the present application does not make specific limitations.

[0064] 103. If the detection result of the bearing temperature data is accurate, start the bearing temperature processing thread that matches the target bearing.

[0065] Among them, the bearing temperature processing thread is used to represent the processing scheme adopted in the case of bearing temperature exceeding the threshold. For example, processing schemes such as increasing the lubricating oil volume and cleaning the bearing bush surface. In the embodiment of the present application, when it is determined that the monitored bearing temperature data exceeding the threshold is in an accurate state, start the bearing temperature processing thread that matches the currently monitored target bearing. For example, in order to reduce the impact on the normal operation of the compressor equipment, the processing scheme that can be carried out under the operating state of the compressor equipment can be adopted first. In the case where the processing does not achieve the target effect, the processing scheme carried out under the stop state is adopted, so as to ensure the safety of the bearing while minimizing the situation that the compressor equipment stops running due to maintenance.

[0066] It should be noted that due to the differences in parameters such as the size, roughness, clearance requirements, and load of different bearings, the bearing temperature processing threads adopted by different bearings are corresponding to the bearings one by one. The bearing temperature processing thread database can be pre-configured, and the relevant parameter data of all bearings to be monitored are stored therein, so as to retrieve the relevant parameter data of the current target bearing and combine the bearing temperature processing thread template to generate the bearing temperature processing thread that matches the current target bearing and further execute it.

[0067] Compared with the prior art, in the embodiment of the present application, when it is monitored that the bearing temperature data of the target bearing exceeds the preset bearing temperature threshold, first detect whether the bearing temperature data is incorrect to avoid the waste of monitoring resources caused by incorrect detection data; further, after determining that the bearing temperature data of the target bearing does exceed the standard, start the bearing temperature processing thread to control the bearing temperature data of the target bearing, so as to realize the generalization and systematization of bearing temperature monitoring.

[0068] For further explanation and limitation, in the embodiment of the present application, the bearing temperature processing thread includes an online adjustment thread and a parking rectification thread; the online adjustment thread is used to represent the bearing temperature processing thread carried out under the operating state of the equipment; the parking rectification thread is used to represent the bearing temperature processing thread carried out under the stop state of the equipment.

[0069] It should be noted that, in order to minimize the situation where the compressor equipment stops running due to maintenance, the bearing bush temperature processing thread can be configured into two types: an online adjustment thread and a shutdown rectification thread. Among them, the online adjustment thread is a bearing bush temperature processing thread that can be carried out when the equipment is in operation, and supports maintenance processing of the equipment when the equipment is in operation to avoid affecting the equipment operation; the shutdown rectification thread is used to represent the bearing bush temperature processing thread carried out when the equipment is in a stopped state. When the online adjustment thread cannot completely handle the phenomenon that the bearing bush temperature exceeds the threshold value, the shutdown rectification thread is started to further perform fault processing on the equipment, so as to ensure the safety of the bearing while minimizing the situation where the compressor equipment stops running due to maintenance.

[0070] For further illustration and limitation, in the embodiment of the present application, if the detection result of the bearing bush temperature data is accurate, the bearing bush temperature processing thread matching the target bearing is started, specifically including: if the detection result of the bearing bush temperature data is accurate, the online adjustment thread is started to control the bearing bush temperature of the target bearing when the target equipment is in operation; receive the end instruction of the online adjustment thread, obtain the current bearing bush temperature data of the target bearing, and judge whether the current bearing bush temperature data exceeds the preset bearing bush temperature threshold.

[0071] Specifically, if the detection result of the bearing bush temperature data of the monitored target bearing is accurate, the adjustment thread is first started, specifically including: an oil quantity control sub-thread and an oil product control sub-thread. Among them, the oil quantity control sub-thread is specifically to increase the oil pressure and the oil supply volume on the premise of meeting the main pipe oil pressure, so that more cold oil enters the bearing, and the exchange of cold and hot oil is accelerated, thereby playing a role in reducing the bearing bush temperature; and after increasing the branch pipe oil pressure, observe the oil return volume in the corresponding oil return sight glass. If the oil return volume does not increase, detect whether the isolation gas and oil fume in the bearing box are in an excessive state and discharge them in time. The oil product control sub-thread is specifically to first detect the lubricating oil grade; then detect the lubricating oil product, especially detect parameters such as antioxidant content, film formation tendency index, air release value, and foam tendency one by one. If it is determined that there are excessive parameters, a film filter can be used for the equipment, and the online cleaning and filtration of the oil product can be carried out in combination with different types of filter elements.

[0072] It should be noted that if friction occurs between the rotor and the bearing during operation, it will lead to the situation of excessive temperature of the supporting bearing pad. When the oil supply to the equipment bearing is insufficient or the jacking oil of the equipment bearing fails to lift the rotor, friction will occur between the rotor and the bearing, which will damage the babbit alloy layer on the surface of the bearing pad, resulting in a change in the bearing clearance and a decrease in the oil film load-carrying capacity. At this time, the oil supply can be increased by starting the oil quantity control sub-thread to reduce the friction between the rotor and the bearing, thereby improving the situation of excessive bearing pad temperature. As another possible situation, generally, the lubricating oil grades used in centrifugal compressor equipment are 32# turbine oil and 46# turbine oil, and 46# turbine oil is mostly used. For centrifugal compressor equipment with a gearbox, extreme pressure turbine oil is required. Therefore, when the lubricating oil grade used in centrifugal compressor equipment is incorrect, the oil film formed at the design temperature will be different, which will have a great impact on the bearing pad temperature. Therefore, when the situation of high bearing pad temperature is detected, it is first necessary to check whether the lubricating oil grade is used incorrectly. Moreover, since the lubricating oil used for a long time is prone to oxidation, and due to the high temperature during use, the lubricating oil is extremely prone to thermal degradation and micro-combustion. At this time, the oxides and degradation products generated will form a lubricating paint film on the surface of the supporting bearing and the rotor. Since the generation of the lubricating paint film is difficult to control, it is necessary to prevent it through real-time monitoring and treatment. Therefore, for equipment running for a long time, it is necessary to detect parameters such as the antioxidant content, paint film tendency index, air release value, and foam tendency of the lubricating oil. If the data exceeds the standard, it means that the lubricating oil has started or has already formed a paint film slowly. In addition, due to the high requirements for the performance of the compressor lubricating oil, generally, the compressor lubricating oil needs to be pretreated, specifically including: 1) pre-cleaning the lubricating oil station fuel tank and valves; 2) pickling and passivating the lubricating oil pipeline, removing slag and purging inside; 3) cleaning the compressor bearing area and bearings; 4) performing external circulation of the oil station for 15-20 days, and installing filters in front of the pump outlet and the regulating valve, checking and replacing them twice a day until the number of soft and hard point impurities in the lubricating oil is qualified; 5) after the external circulation of the oil station ends, taking multiple samples of the lubricating oil to analyze the lubricating oil quality until it is qualified; 6) performing internal circulation of the compressor for about 7-10 days. Similarly, install filters on the inlet and return oil pipelines of the pipeline, check and replace them twice a day until the number of soft and hard point impurities in the lubricating oil is qualified; 7) after the internal circulation ends, take multiple samples to analyze the lubricating oil quality, and it can be put into use only after it is qualified.

[0073] Further, when the end instruction of the online adjustment thread is received, it indicates that the oil quantity control sub-thread and / or the oil product control sub-thread has been completed. At this time, the current bearing pad temperature data of the target bearing is obtained again, and it is judged whether the current bearing pad temperature data exceeds the preset bearing pad temperature threshold, so as to determine whether the target adjustment effect has been achieved.

[0074] As a possible situation, in the embodiments of the present application, after determining whether the current bearing temperature data exceeds the preset bearing temperature threshold, the method of the embodiment further includes: if the current bearing temperature data exceeds the preset bearing temperature threshold, triggering an equipment stop interlock event and starting a stop rectification thread to control the bearing temperature of the target bearing when the target equipment is in a stopped state.

[0075] Specifically, if after the overhaul by the online adjustment thread, the bearing temperature data of the target bearing obtained again still exceeds the preset bearing temperature threshold, at this time, it is necessary to trigger an equipment stop interlock event. For example, set the temperature alarm of the support bearing and thrust bearing of the centrifugal compressor to 105°C, the interlock temperature to 115°C, and the interlock mode to one-out-of-one interlock or two-out-of-two interlock, and start a stop rectification thread to control the bearing temperature of the target bearing when the target equipment is in a stopped state. The stop rectification thread specifically includes: a bearing bush trimming sub-thread, a bearing bush installation sub-thread, a pipeline cleaning sub-thread, and an oil inlet hole correction sub-thread. Among them, the bearing bush trimming sub-thread is specifically as follows: first, disassemble and inspect the support bearing of the compressor, and detect whether there are phenomena such as coking, scratching, and alloy layer peeling on the surface of the support bearing bush block; if there is coking, clean the coking substance and further detect the surface of the bush block. Generally, coking indicates that there is local overheating during the use of the bearing, and the bearing temperature can be reduced by increasing the bearing clearance and the oil inlet volume of the bearing body; further, for the situation where the surface of the bush block is scratched or the alloy layer peels off, it can be processed by manual pliers repair and local repair welding, or replace the spare bush block. The bearing bush installation sub-thread is specifically as follows: retrieve the parameter data of the current target bearing, measure its thickness with a spherical micrometer before installing the bush block, and ensure that the deviation is below 0.01 mm; further adjust the support bearing clearance to the middle upper limit value, and process the adjustment shims on the back of the support bearing bush block to ensure that the amount of material removed from each bush block is the same, so as to ensure that the thickness of the adjusted bush block is uniform; and after the bush block is installed, conduct a contact detection with the rotor shaft diameter to ensure that the contact area reaches more than 85%. If the contact area does not meet the standard, the non-contact position of the bush block can be ground. The pipeline cleaning sub-thread is specifically as follows: detect the pipe diameter, pipe orifice size of the inlet and return oil pipelines of the compressor equipment and whether there are foreign objects, and clean them in time. The oil inlet hole correction sub-thread is specifically as follows: increase the bearing oil inlet volume through the bearing throttle plug or oil inlet hole reaming. As Figure 2 shown, further calculate the margin of the oil system according to the oil consumption of the lubricating oil system and the oil consumption of each bearing, so that the increased lubricating oil volume caused by the reaming is kept below the margin. As a possible situation, for large support bearings with a shaft diameter of more than 200 mm, as Figure 3 shown, on the basis of the traditional oil inlet hole, a structure form combining an oil baffle and multiple nozzles can be added to efficiently utilize the cold oil, so that the cold oil can enter the bearing more to increase the lubrication area and the heat and cold exchange efficiency, thereby achieving the effect of reducing the bearing temperature.

[0076] It should be noted that due to the assembly deviation of the support bearing, the bearing bush temperature may be too high. When the clearance is too small, the hot oil cannot be discharged in time after the compressor equipment runs, the oil film thickness becomes thinner, and the support bearing is prone to overheating of the bearing bush temperature. If the bearing contact area does not reach more than 85%, it will also cause the bearing bush temperature to be too high. Therefore, when assembling the support bearing, parameters such as bearing clearance, bearing contact, and bearing interference can be detected to avoid the above situations. At the same time, if there are quality problems with the bearing bush blocks, such as pits on the surface of the bush blocks, peeling of the bush blocks and Babbitt alloy layers, and poor swing angles of the bush blocks, it will also cause the support bearing bush temperature to be too high. In addition, design defects such as too small bearing clearance of the compressor equipment, inappropriate selection of the included angle of the support bearing bush blocks, too small bearing preload, and too large bearing specific pressure may also cause the bearing capacity of the support bearing to decrease. When the rotor runs to the designed speed, the temperature is extremely likely to continue to rise, which in turn leads to a high bearing bush temperature.

[0077] For further illustration and limitation, in the embodiments of the present application, the method of the embodiment further includes: receiving an end instruction of a parking rectification thread and controlling the target device to resume its operating state.

[0078] In a specific application scenario, the analysis of the reasons for the high bearing bush temperature is as Figure 4 shown. The reasons that may cause insufficient bearing oil supply include: calculation deviation of the bearing oil supply due to parameter problems or calculation method problems, resulting in a too small design of the oil inlet hole, which in turn leads to insufficient bearing oil supply; due to incomplete cleaning of the oil pipeline and oil tank and a large amount of oil impurities, the bearing is blocked, which in turn leads to insufficient bearing oil supply. The reasons that may cause bearing assembly deviation include: too small bearing clearance, too large bearing interference, uneven thickness of the bush blocks, and non-compliance of the contact area, etc. Oil problems include: reduced oxidation resistance, incorrect lubricating oil grade, lubricating oil entering water, and too large film index, etc. Exceeding the standard of actual operating parameters includes: too large axial force, too high speed, and too large load, etc. The above reasons can all cause poor oil film support, which in turn leads to too high a temperature of the centrifugal compressor bearing bush.

[0079] In a specific application scenario, as Figure 5 shown, when the temperature of the centrifugal compressor bearing bush is too high, it can be checked from several aspects including bearing design selection, manufacturing, installation, and operation in combination with Figure 4 the problem analysis shown, so as to formulate a targeted maintenance plan.

[0080] The present application provides a method for monitoring the bearing pad temperature. First, the temperature data of the target bearing is monitored in real time. Secondly, if the temperature data exceeds the preset temperature threshold, it is detected whether the temperature data is accurate. Finally, if the detection result of the temperature data is accurate, a bearing pad temperature processing thread matching the target bearing is started. Compared with the prior art, in the embodiment of the present application, when it is monitored that the temperature data of the target bearing exceeds the preset temperature threshold, it is first detected whether the temperature data is incorrect, so as to avoid the waste of monitoring resources caused by incorrect detection data. Further, after it is determined that the temperature data of the target bearing does exceed the standard, the bearing pad temperature processing thread is started to control the temperature data of the target bearing, thereby realizing the generalization and systematization of bearing pad temperature monitoring.

[0081] Further, as an implementation of the above Figure 1 shown method, the embodiment of the present application provides a bearing pad temperature monitoring system, as Figure 6 shown, the device includes:

[0082] A monitoring module 21, a detection module 22, and a start module 23.

[0083] The monitoring module 21 is used to monitor the temperature data of the target bearing in real time;

[0084] The detection module 22 is used to detect whether the temperature data is accurate if the temperature data exceeds the preset temperature threshold;

[0085] The start module 23 is used to start a bearing pad temperature processing thread matching the target bearing if the detection result of the temperature data is accurate.

[0086] In a specific application scenario, the bearing pad temperature processing thread includes an on-line adjustment thread and a stop-and-reform thread;

[0087] The on-line adjustment thread is used to represent the bearing pad temperature processing thread carried out in the running state of the equipment;

[0088] The stop-and-reform thread is used to represent the bearing pad temperature processing thread carried out in the stopped state of the equipment.

[0089] In a specific application scenario, the start module specifically includes:

[0090] A start unit, used to start the on-line adjustment thread if the detection result of the temperature data is accurate, so as to control the temperature of the target bearing when the target equipment is in the running state;

[0091] A judgment unit, used to receive the end instruction of the on-line adjustment thread, obtain the current temperature data of the target bearing, and judge whether the current temperature data exceeds the preset temperature threshold.

[0092] In a specific application scenario, after the judgment unit, the module further includes:

[0093] A trigger unit, configured to trigger a device parking interlock event and start the parking rectification thread if the current bearing temperature data exceeds the preset bearing temperature threshold, so as to control the bearing temperature of the target bearing when the target device is in a stopped state.

[0094] In a specific application scenario, the online adjustment thread includes an oil quantity control sub-thread and an oil product control sub-thread.

[0095] In a specific application scenario, the parking rectification thread includes a bearing bush trimming sub-thread, a bearing bush installation sub-thread, a pipeline cleaning sub-thread, and an oil inlet hole correction sub-thread.

[0096] In a specific application scenario, the system further includes:

[0097] A recovery module, configured to receive an end instruction of the parking rectification thread and control the target device to resume its operating state.

[0098] The present application provides a monitoring system for bearing temperature. First, it monitors the bearing temperature data of the target bearing in real time. Secondly, if the bearing temperature data exceeds the preset bearing temperature threshold, it detects whether the bearing temperature data is accurate. Finally, if the detection result of the bearing temperature data is accurate, it starts a bearing temperature processing thread that matches the target bearing. Compared with the prior art, in the embodiment of the present application, when it is monitored that the bearing temperature data of the target bearing exceeds the preset bearing temperature threshold, it first detects whether the bearing temperature data is incorrect, so as to avoid the waste of monitoring resources caused by incorrect detection data. Further, after it is determined that the bearing temperature data of the target bearing does exceed the standard, the bearing temperature processing thread is started to control the bearing temperature data of the target bearing, thereby realizing the generalization and systematization of bearing temperature monitoring.

[0099] According to an embodiment of the present application, there is provided a storage medium storing at least one executable instruction, and the computer executable instruction can execute the monitoring method for bearing temperature in any of the above method embodiments.

[0100] Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product, and the software product can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in various implementation scenarios of the present application.

[0101] Figure 7The figure shows a schematic structural diagram of a terminal provided according to an embodiment of the present application. The specific embodiments of the present application do not limit the specific implementation of the terminal.

[0102] As Figure 7 shown, the terminal may include: a processor 302, a communications interface 304, a memory 306, and a communication bus 308.

[0103] Among them: the processor 302, the communications interface 304, and the memory 306 communicate with each other through the communication bus 308.

[0104] The communications interface 304 is used to communicate with network elements of other devices such as clients or other servers.

[0105] The processor 302 is used to execute the program 310, and specifically can execute the relevant steps in the embodiment of the monitoring method for the bearing bush temperature of the above interface.

[0106] Specifically, the program 310 may include program code, and the program code includes computer operation instructions.

[0107] The processor 302 may be a central processing unit CPU, or a specific integrated circuit ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present application. One or more processors included in the terminal may be of the same type of processor, such as one or more CPUs; or may be of different types of processors, such as one or more CPUs and one or more ASICs.

[0108] The memory 306 is used to store the program 310. The memory 306 may include a high-speed RAM memory, and may also include non-volatile memory, such as at least one disk memory.

[0109] The program 310 is specifically used to cause the processor 302 to perform the following operations:

[0110] Real-time monitor the bush temperature data of the target bearing;

[0111] If the bush temperature data exceeds the preset bush temperature threshold, then detect whether the bush temperature data is accurate;

[0112] If the detection result of the bush temperature data is accurate, then start a bearing bush temperature processing thread matching the target bearing.

[0113] The storage medium may also include an operating system and a network communication module. The operating system is a program that manages the entity device hardware and software resources for monitoring the bearing pad temperature, and supports the operation of information processing programs and other software and / or programs. The network communication module is used to implement communication between components within the storage medium, as well as communication with other hardware and software in the information processing entity device.

[0114] Each embodiment in this specification is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the system embodiment, since it basically corresponds to the method embodiment, the description is relatively simple, and for the relevant parts, reference can be made to the description in the method embodiment.

[0115] The methods and systems of the present application can be implemented in many ways. For example, the methods and systems of the present application can be implemented through software, hardware, firmware, or any combination of software, hardware, and firmware. The above order of the steps for the method is only for illustration, and the steps of the method of the present application are not limited to the specific order described above, unless otherwise specifically stated. In addition, in some embodiments, the present application can also be implemented as a program recorded in a recording medium, and these programs include machine-readable instructions for implementing the method according to the present application. Therefore, the present application also covers a recording medium storing a program for executing the method according to the present application.

[0116] Obviously, those skilled in the art should understand that the above-mentioned modules or steps of the present application can be implemented by a general-purpose computing device. They can be concentrated on a single computing device or distributed on a network composed of multiple computing devices. Optionally, they can be implemented by program codes executable by the computing device, so that they can be stored in a storage device and executed by the computing device. And in some cases, the steps shown or described can be executed in a different order than here, or they can be separately fabricated into individual integrated circuit modules, or multiple modules or steps among them can be fabricated into a single integrated circuit module to implement. In this way, the present application is not limited to any specific combination of hardware and software.

[0117] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for monitoring the bearing bush temperature, characterized in that including: Real-time monitoring of the bearing bush temperature data of the target bearing; If the bearing bush temperature data exceeds the preset bearing bush temperature threshold, then detect whether the bearing bush temperature data is accurate; If the detection result of the bearing bush temperature data is accurate, then start a bearing bush temperature processing thread that matches the target bearing; The step of, if the detection result of the bearing bush temperature data is accurate, then start a bearing bush temperature processing thread that matches the target bearing, specifically includes: If the detection result of the bearing bush temperature data is accurate, then start an online adjustment thread to control the bearing bush temperature of the target bearing when the target device is in an operating state; Receive the end instruction of the online adjustment thread, obtain the current bearing bush temperature data of the target bearing, and determine whether the current bearing bush temperature data exceeds the preset bearing bush temperature threshold; If the current bearing bush temperature data exceeds the preset bearing bush temperature threshold, then trigger a device parking interlock event and start a parking rectification thread to control the bearing bush temperature of the target bearing when the target device is in a stopped state.

2. The method according to claim 1, wherein The bearing bush temperature processing thread includes an online adjustment thread and a parking rectification thread; The online adjustment thread is used to represent the bearing bush temperature processing thread carried out in the device operating state; The parking rectification thread is used to represent the bearing bush temperature processing thread carried out in the device stopped state.

3. The method according to claim 2, wherein The online adjustment thread includes an oil quantity control sub-thread and an oil product control sub-thread.

4. The method according to claim 2, characterized in that The parking rectification thread includes a bearing bush trimming sub-thread, a bearing bush installation sub-thread, a pipeline cleaning sub-thread, and an oil inlet hole correction sub-thread.

5. The method according to claim 1, wherein The method further includes: Receive the end instruction of the parking rectification thread and control the target device to resume the operating state.

6. A monitoring system for the bearing temperature, characterized in that, including: A monitoring module for real-time monitoring of the bearing bush temperature data of the target bearing; A detection module for detecting whether the bearing bush temperature data is accurate if the bearing bush temperature data exceeds the preset bearing bush temperature threshold; A start module for starting a bearing bush temperature processing thread that matches the target bearing if the detection result of the bearing bush temperature data is accurate; The start module specifically includes: A start unit for starting an online adjustment thread to control the bearing bush temperature of the target bearing when the target device is in an operating state if the detection result of the bearing bush temperature data is accurate; A judgment unit for receiving the end instruction of the online adjustment thread, obtaining the current bearing bush temperature data of the target bearing, and judging whether the current bearing bush temperature data exceeds the preset bearing bush temperature threshold; A trigger unit for triggering a device parking interlock event and starting a parking rectification thread to control the bearing bush temperature of the target bearing when the target device is in a stopped state if the current bearing bush temperature data exceeds the preset bearing bush temperature threshold.

7. A storage medium storing at least one executable instruction, characterized in that, The executable instruction causes the processor to perform the operations corresponding to the bearing bush temperature monitoring method according to any one of claims 1-5.

8. An electronic device, comprising: A processor, a memory, a communication interface, and a communication bus, and the processor, the memory, and the communication interface complete communication with each other through the communication bus; The memory is used for storing at least one executable instruction, and the executable instruction causes the processor to perform the operations corresponding to the bearing bush temperature monitoring method according to any one of claims 1-5.

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