CN117869355B - Remote operation and maintenance system of multistage turbine vacuum pump and fault processing method and device thereof - Google Patents
Remote operation and maintenance system of multistage turbine vacuum pump and fault processing method and device thereof Download PDFInfo
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- CN117869355B CN117869355B CN202410187099.4A CN202410187099A CN117869355B CN 117869355 B CN117869355 B CN 117869355B CN 202410187099 A CN202410187099 A CN 202410187099A CN 117869355 B CN117869355 B CN 117869355B
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- 238000012423 maintenance Methods 0.000 title claims abstract description 49
- 238000003672 processing method Methods 0.000 title abstract description 14
- 238000012544 monitoring process Methods 0.000 claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 12
- 238000003745 diagnosis Methods 0.000 claims abstract description 11
- 230000002159 abnormal effect Effects 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 23
- 238000010586 diagram Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
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- 239000012535 impurity Substances 0.000 description 3
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- 238000007796 conventional method Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The application provides a remote operation and maintenance system of a multistage turbine vacuum pump and a fault processing method and device thereof, wherein the system comprises a remote operation and maintenance center and a monitoring unit arranged on a production site; the monitoring unit comprises a sensor group corresponding to the target multi-stage turbine vacuum pump, a distributed control unit and an intelligent gateway, wherein the sensor group is used for collecting operation data of the target multi-stage turbine vacuum pump, the distributed control unit is used for receiving the operation data of the target multi-stage turbine vacuum pump and sending the operation data to a remote operation and maintenance center through the intelligent gateway, emergency operation is carried out on the target multi-stage turbine vacuum pump based on an emergency control instruction of the remote operation and maintenance center, the remote operation and maintenance center is used for carrying out fault diagnosis based on the operation data of the target multi-stage turbine vacuum pump, generating the emergency control instruction under the condition that the target multi-stage turbine vacuum pump fails and sending the emergency control instruction to the distributed control unit corresponding to the target multi-stage turbine vacuum pump, and monitoring and efficient fault processing of the multi-stage turbine vacuum pump can be realized.
Description
Technical Field
The application relates to the technical field of turbine vacuum pump monitoring, in particular to a remote operation and maintenance system of a multistage turbine vacuum pump and a fault processing method and device thereof.
Background
At present, most of fault treatment of turbine vacuum pumps is finished by manual work, and due to the fact that the cause of partial faults is complex, maintenance staff cannot judge fault points of equipment in a short time, so that a blind carpet type fault detection mode is required to be adopted, after-sales maintenance cost is greatly improved, and production efficiency of enterprises is greatly reduced.
Disclosure of Invention
The application provides a remote operation and maintenance system of a multistage turbine vacuum pump and a fault processing method thereof, which aim to realize real-time monitoring of the working state of the multistage turbine vacuum pump and efficient fault processing.
The application provides a remote operation and maintenance system of a multistage turbine vacuum pump, which comprises:
the remote operation and maintenance center and the monitoring unit are arranged on the production site;
The monitoring unit comprises a sensor group corresponding to the target multistage turbine vacuum pump, a distributed control unit and an intelligent gateway, wherein the sensor group is used for collecting operation data of the target multistage turbine vacuum pump, the distributed control unit is used for receiving the operation data of the target multistage turbine vacuum pump and sending the operation data to the remote operation and maintenance center through the intelligent gateway, and the distributed control unit is also used for carrying out emergency operation on the target multistage turbine vacuum pump based on an emergency control instruction of the remote operation and maintenance center;
The remote operation and maintenance center is used for carrying out fault diagnosis based on the operation data of the target multi-stage turbine vacuum pump, generating an emergency control instruction under the condition that the target multi-stage turbine vacuum pump fails and sending the emergency control instruction to the distributed control unit corresponding to the target multi-stage turbine vacuum pump.
According to the remote operation and maintenance system of the multi-stage turbine vacuum pump, the sensor group comprises sensor subgroups corresponding to each stage of the target multi-stage turbine vacuum pump, each sensor subgroup comprises an inlet pressure sensor, an outlet pressure sensor, a horizontal vibration sensor and a vertical vibration sensor, the inlet pressure sensor is used for detecting inlet pressure of the corresponding stage, the outlet pressure sensor is used for detecting outlet pressure of the corresponding stage, the horizontal vibration sensor is used for detecting vibration conditions of the corresponding stage in the horizontal direction, and the vertical vibration sensor is used for detecting vibration conditions of the corresponding stage in the vertical direction.
According to the remote operation and maintenance system of the multistage turbine vacuum pump provided by the application, the distributed control unit is further used for controlling the operation of the multistage turbine vacuum pump based on the preset rotating speed combination of a user and synchronously transmitting the preset rotating speed combination to a remote operation and maintenance center, and correspondingly, each sensor group further comprises a rotating speed sensor used for detecting the rotating speed of the turbine of the corresponding stage.
According to the remote operation and maintenance system of the multistage turbine vacuum pump, each sensor group further comprises a liquid level sensor for detecting the liquid level of the gas-water separator of the corresponding stage.
The application also provides a fault processing method of the remote operation and maintenance system of the multistage turbine vacuum pump, which is applied to the remote operation and maintenance center of the remote operation and maintenance system of the multistage turbine vacuum pump, and comprises the following steps:
Determining whether the operation state of the target multistage turbine vacuum pump is abnormal or not based on the real-time turbine rotation speed of each stage of the target multistage turbine vacuum pump;
Under the condition that the running state of the target multistage turbine vacuum pump is abnormal, determining whether the surge indication occurs to the target multistage turbine vacuum pump or not based on the vibration conditions of each stage of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction;
Under the condition of surging indication of the target multi-stage turbine vacuum pump, determining a target stage for surging and a source stage for surging based on inlet pressure and outlet pressure of each stage of the target multi-stage turbine vacuum pump, and determining a surging reason by combining the liquid level of the gas-water separator;
And generating an emergency control instruction based on the surge reason and sending the emergency control instruction to a distributed control unit corresponding to the target multistage turbine vacuum pump.
According to the fault processing method of the remote operation and maintenance system of the multistage turbine vacuum pump, which is provided by the application, the operation state of the target multistage turbine vacuum pump is determined to be abnormal based on the real-time turbine rotation speed of each stage of the target multistage turbine vacuum pump, and the fault processing method specifically comprises the following steps:
And if so, acquiring the latest rotation speed combination and performing secondary comparison with the real-time rotation speeds of all stages of the target multi-stage turbine vacuum pump, and judging that the running state of the target multi-stage turbine vacuum pump is abnormal under the condition that the secondary comparison result indicates that the real-time rotation speeds are abnormal.
According to the fault processing method of the remote operation and maintenance system of the multistage turbine vacuum pump provided by the application, whether the surge indication occurs to the target multistage turbine vacuum pump is determined based on the vibration conditions of each stage of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction, and the fault processing method specifically comprises the following steps:
and obtaining the vibration frequencies of each level of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction, and judging the surge indication of the target multistage turbine vacuum pump if the vibration frequencies of each level of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction are matched with the preset surge frequency.
According to the fault processing method of the remote operation and maintenance system of the multistage turbine vacuum pump provided by the application, the target stage for surging and the source stage for surging are determined based on the inlet pressure and the outlet pressure of each stage of the target multistage turbine vacuum pump, and the fault processing method concretely comprises the following steps:
Determining whether the fluctuation frequency of the inlet pressure and the outlet pressure of each stage is matched with a preset surge fluctuation frequency or not based on the inlet pressure and the outlet pressure of each stage of the target multistage turbine vacuum pump, and if so, determining the target stage of surge;
The source stage that causes the surge is determined based on the time at which the inlet and outlet pressures of each target stage fluctuate.
According to the fault processing method of the remote operation and maintenance system of the multistage turbine vacuum pump, which is provided by the application, the surge reason is determined by combining the liquid level of the gas-water separator, and the fault processing method specifically comprises the following steps:
If the liquid level of the gas-water separator exceeds the preset value, judging that the surge source is due to the gas-water separator fault, otherwise, determining the surge reason based on the vibration amplitude of the source stage in the horizontal direction and the vertical direction.
The application also provides a fault processing device of a remote operation and maintenance system of the multistage turbine vacuum pump, which is applied to a remote operation and maintenance center of the remote operation and maintenance system of the multistage turbine vacuum pump, and comprises the following components:
the first judging module is used for determining whether the running state of the target multistage turbine vacuum pump is abnormal or not based on the real-time turbine rotating speeds of all stages of the target multistage turbine vacuum pump;
The second judging module is used for determining whether the surge indication occurs to the target multistage turbine vacuum pump or not based on the vibration conditions of each stage of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction under the condition that the operation state of the target multistage turbine vacuum pump is abnormal;
the first determining module is used for determining a target level for surging and a source level for surging based on inlet pressure and outlet pressure of each level of the target multi-level turbine vacuum pump under the condition of surging indication of the target multi-level turbine vacuum pump, and determining a surging reason by combining the liquid level of the gas-water separator;
And the fault processing module is used for generating an emergency control instruction based on the surge reason and sending the emergency control instruction to the distributed control unit corresponding to the target multistage turbine vacuum pump.
The remote operation and maintenance system comprises a remote operation and maintenance center and a monitoring unit arranged on a production site, wherein the monitoring unit comprises a sensor group, a distributed control unit and an intelligent gateway, the sensor group is used for collecting operation data of a target multistage turbine vacuum pump, the distributed control unit is used for receiving the operation data of the target multistage turbine vacuum pump and sending the operation data to the remote operation and maintenance center through the intelligent gateway, the distributed control unit is also used for carrying out emergency operation on the target multistage turbine vacuum pump based on an emergency control instruction of the remote operation and maintenance center, the remote operation and maintenance center is used for carrying out fault diagnosis based on the operation data of the target multistage turbine vacuum pump, generating the emergency control instruction under the condition that the target multistage turbine vacuum pump fails and sending the emergency control instruction to the distributed control unit corresponding to the target multistage turbine vacuum pump, and therefore real-time monitoring and efficient fault treatment of the working state of the multistage turbine vacuum pump can be achieved.
Drawings
In order to more clearly illustrate the application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a remote operation and maintenance system of a multistage turbine vacuum pump provided by the application;
FIG. 2 is a schematic flow chart of a fault handling method of a remote operation and maintenance system of a multistage turbine vacuum pump provided by the application;
FIG. 3 is a schematic diagram of a determining process of a target level and a root level according to the present application;
FIG. 4 is a schematic diagram of a fault handling apparatus for a remote operation and maintenance system of a multi-stage turbine vacuum pump according to the present application;
fig. 5 is a schematic structural diagram of an electronic device provided by the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
FIG. 1 is a schematic diagram of a remote operation and maintenance system for a multistage turbine vacuum pump according to the present application, as shown in FIG. 1, the system comprises:
the remote operation and maintenance center and the monitoring unit are arranged on the production site;
The monitoring unit comprises a sensor group corresponding to the target multistage turbine vacuum pump, a distributed control unit and an intelligent gateway, wherein the sensor group is used for collecting operation data of the target multistage turbine vacuum pump, the distributed control unit is used for receiving the operation data of the target multistage turbine vacuum pump and sending the operation data to the remote operation and maintenance center through the intelligent gateway, and the distributed control unit is also used for carrying out emergency operation on the target multistage turbine vacuum pump based on an emergency control instruction of the remote operation and maintenance center;
The remote operation and maintenance center is used for carrying out fault diagnosis based on the operation data of the target multi-stage turbine vacuum pump, generating an emergency control instruction under the condition that the target multi-stage turbine vacuum pump fails and sending the emergency control instruction to the distributed control unit corresponding to the target multi-stage turbine vacuum pump.
In particular, it is understood that the service object of the remote operation and maintenance system of the multistage turbo vacuum pump is a supplier (i.e., a vendor) of the multistage turbo vacuum pump. Based on the remote operation and maintenance system of the multistage turbine vacuum pump, a provider can monitor the operation state of the sold multistage turbine vacuum pump in real time, so that timely operation and maintenance service is provided. Based on this, it can be further understood that the target multi-stage turbine vacuum pump refers to a multi-stage turbine vacuum pump distributed in the production site of the first party (i.e., the purchaser), and by using the remote operation and maintenance system of the multi-stage turbine vacuum pump according to the embodiment of the present application, a provider can conveniently and quickly perform remote operation and maintenance on all multi-stage turbine vacuum pumps distributed in different areas.
In order to comprehensively monitor the target multi-stage turbine vacuum pumps, each target multi-stage turbine vacuum pump is provided with a corresponding sensor group, a distributed control unit and an intelligent gateway so as to collect and aggregate the operation data of the target multi-stage turbine vacuum pump and upload the operation data to a remote operation and maintenance center. Based on the fault diagnosis, the remote operation and maintenance center can perform fault diagnosis based on the operation data of the target multi-stage turbine vacuum pump, generate emergency control instructions under the condition that the target multi-stage turbine vacuum pump fails and send the emergency control instructions to the distributed control units corresponding to the target multi-stage turbine vacuum pump.
More specifically, the sensor group comprises sensor subgroups corresponding to each stage of the target multistage turbine vacuum pump, each sensor subgroup comprises an inlet pressure sensor, an outlet pressure sensor, a horizontal vibration sensor and a vertical vibration sensor, the inlet pressure sensor is used for detecting inlet pressure of the corresponding stage, the outlet pressure sensor is used for detecting outlet pressure of the corresponding stage, the horizontal vibration sensor is used for detecting vibration conditions of the corresponding stage in the horizontal direction, and the vertical vibration sensor is used for detecting vibration conditions of the corresponding stage in the vertical direction. It can be understood that, because each stage of the multistage turbine vacuum pump independently controls the turbine rotation speed, any stage may fail, and based on this, the embodiment of the present application sets a corresponding sensor group for each stage, so as to comprehensively collect and analyze the operation state of the target multistage turbine vacuum pump. It is noted that the horizontal direction refers to a direction corresponding to a plane including an axis of the corresponding stage rotor and parallel to the bottom surface of the corresponding stage, and the vertical direction refers to a direction corresponding to a plane perpendicular to the axis of the corresponding stage rotor.
It should be noted that, in addition to being capable of performing emergency operation on the target multistage turbine vacuum pump based on the emergency control instruction of the remote operation and maintenance center, the distributed control unit is also an interface for performing operation control on the multistage turbine vacuum pump by a staff member, and accordingly, the distributed control unit is further used for controlling operation of the multistage turbine vacuum pump based on a rotation speed combination preset by a user and synchronously transmitting the preset rotation speed combination to the remote operation and maintenance center, and accordingly, each sensor group further comprises a rotation speed sensor for detecting the rotation speed of the turbine of the corresponding stage. Based on the foregoing, it can be appreciated that each stage of the multi-stage turbine vacuum pump independently controls turbine speed, and thus, a user needs to preset a corresponding speed combination to control the operation of the multi-stage turbine vacuum pump. Based on this, the turbine speed of the corresponding stage is detected by the speed sensor, and it is possible to quickly diagnose whether the actual turbine speed meets the expectation.
Further, each sensor group also comprises a liquid level sensor for detecting the liquid level of the gas-water separator. It is worth noting that in order to avoid the influence of moisture and impurities generated by the previous stage equipment on the rotors of each stage, the multistage turbine vacuum pump of the embodiment of the application is provided with a gas-water separator for each stage. The gas-water separator is used as the associated equipment of the multistage turbine vacuum pump, and can effectively separate moisture and impurities generated by the preceding-stage equipment, but if the gas-water separator fails, the working state of the multistage turbine vacuum pump can be directly influenced. Based on the above, the embodiment of the application can detect the state of the related equipment of the multistage turbine vacuum pump by arranging the liquid level sensor, thereby ensuring the accuracy and the high efficiency of the subsequent fault diagnosis.
The system comprises a remote operation and maintenance center and a monitoring unit arranged on a production site, wherein the monitoring unit comprises a sensor group, a distributed control unit and an intelligent gateway, wherein the sensor group corresponds to a target multistage turbine vacuum pump, the sensor group is used for collecting operation data of the target multistage turbine vacuum pump, the distributed control unit is used for receiving the operation data of the target multistage turbine vacuum pump and sending the operation data to the remote operation and maintenance center through the intelligent gateway, the distributed control unit is also used for carrying out emergency operation on the target multistage turbine vacuum pump based on an emergency control instruction of the remote operation and maintenance center, the remote operation and maintenance center is used for carrying out fault diagnosis based on the operation data of the target multistage turbine vacuum pump, generating the emergency control instruction and sending the emergency control instruction to the distributed control unit corresponding to the target multistage turbine vacuum pump under the condition that the target multistage turbine vacuum pump breaks down, and real-time monitoring and efficient fault processing of the working state of the multistage turbine vacuum pump can be realized.
Fig. 2 is a schematic flow chart of a fault handling method of a remote operation and maintenance system of a multistage turbine vacuum pump according to the present application, where the method is applied to a remote operation and maintenance center of a remote operation and maintenance system of a multistage turbine vacuum pump as described above, and as shown in fig. 2, the method includes:
And step 101, determining whether the operation state of the target multistage turbine vacuum pump is abnormal or not based on the real-time turbine rotation speed of each stage of the target multistage turbine vacuum pump.
Specifically, the determining whether the operation state of the target multistage turbine vacuum pump is abnormal based on the real-time turbine rotation speed of each stage of the target multistage turbine vacuum pump specifically comprises:
And if so, acquiring the latest rotation speed combination and performing secondary comparison with the real-time rotation speeds of all stages of the target multi-stage turbine vacuum pump, and judging that the running state of the target multi-stage turbine vacuum pump is abnormal under the condition that the secondary comparison result indicates that the real-time rotation speeds are abnormal.
It should be noted that, based on the foregoing, the distributed control unit is further configured to control the operation of the multi-stage turbo vacuum pump based on a rotation speed combination preset by a user and send the preset rotation speed combination to the remote operation and maintenance center synchronously, and in general, the user only sets the rotation speed combination before the multi-stage turbo vacuum pump works, so the distributed control unit only sends the preset rotation speed combination to the remote operation and maintenance center synchronously just before the multi-stage turbo vacuum pump starts to operate or begins to operate. However, according to the application, researches show that in the running process of the multistage turbine vacuum pump, the rotation speed combination in the production process is possibly changed due to process requirements or misoperation of a user, so that the real-time turbine rotation speed is not matched with the rotation speed combination recorded in the remote operation and maintenance center, and further, the abnormal state is misjudged. Therefore, the embodiment of the application firstly determines whether the real-time turbine rotating speed of each stage is abnormal or not based on the comparison result of the real-time turbine rotating speed of each stage of the target multi-stage turbine vacuum pump and the preset rotating speed combination recorded in the remote operation and maintenance center, if so, acquires the latest rotating speed combination (namely, acquires the updated rotating speed combination from the distributed control unit) and performs secondary comparison with the real-time turbine rotating speed of each stage of the target multi-stage turbine vacuum pump, and only judges that the running state of the target multi-stage turbine vacuum pump is abnormal under the condition that the secondary comparison result indicates that the real-time turbine rotating speed is abnormal. Based on the above, erroneous judgment of abnormal state caused by parameter change during production of users can be avoided to the maximum extent. It can be understood that if the real-time turbine rotational speed of each stage of the target multistage turbine vacuum pump is completely matched with the rotational speed combination recorded in the remote operation and maintenance center, the rotational speed is judged to be normal, otherwise, the rotational speed is judged to be abnormal. It is further understood that matching may refer to that the real-time turbine rotation speed is the same as a set value (i.e., a corresponding value in the rotation speed combination) (which may maximally ensure that the working state is consistent with the requirement), or may refer to that the difference between the two is smaller than a preset threshold (which may avoid abnormal erroneous judgment caused by slight external disturbance), which is not particularly limited in the embodiment of the present application.
And 102, determining whether the surge indication occurs to the target multistage turbine vacuum pump or not based on the vibration conditions of each stage of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction under the condition that the operation state of the target multistage turbine vacuum pump is abnormal.
In particular, according to the application, under the condition that the operation state of the target multistage turbine vacuum pump is abnormal, the vacuum pump is extremely easy to surge, so that the production process is not up to standard, and even the target multistage turbine vacuum pump blade and the shell are collided and damaged. In order to avoid serious consequences caused by surge, the prior art generally adopts a vibration monitoring or pressure monitoring mode, and whether surge and the intensity of surge occur or not is determined through a comparison result of the vibration amplitude of the vacuum pump and a preset amplitude threshold value or a comparison result of the pressure of the vacuum pump and a preset pressure threshold value, and the detection accuracy of the mode is lower, so that surge omission judgment or misjudgment is easily caused.
In view of the above problems, the present application has been made by intensive studies on the surge characteristics of a multistage turbine vacuum pump, and has found that the frequency of vibration of the multistage turbine vacuum pump is significantly regular when a surge is about to occur, so that the tendency of surge can be found in advance by vibration monitoring, but whether the multistage turbine vacuum pump is surging or not cannot be directly ascertained by vibration monitoring alone, for example, the fixing member of the multistage turbine vacuum pump is loosened to cause regular vibration, but surging is not caused, so that the simple use of vibration monitoring is prone to false alarm, and the production efficiency is affected. In contrast, pressure monitoring can intuitively reflect the surge condition, but the problem of pressure monitoring is that the detection is more accurate when an obvious surge phenomenon occurs, but the fault treatment is too late at this time, which may cause irrecoverable loss. Based on the method, in order to overcome the defects of vibration monitoring and pressure monitoring, the application provides a surge monitoring scheme integrating vibration monitoring and pressure monitoring, and the timeliness and accuracy of the surge monitoring can be considered. Specifically, in the embodiment of the application, under the condition that the operation state of the target multistage turbine vacuum pump is abnormal, whether the surge indication occurs to the target multistage turbine vacuum pump is firstly determined based on the vibration conditions of each stage of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction. More specifically, the method for determining whether the surge indication occurs in the target multistage turbine vacuum pump based on the vibration conditions of each stage of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction specifically comprises the following steps:
and obtaining the vibration frequencies of each level of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction, and judging the surge indication of the target multistage turbine vacuum pump if the vibration frequencies of each level of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction are matched with the preset surge frequency.
Based on the foregoing, further, according to the application, when the target multistage turbine vacuum pump is about to surge, the vibration frequencies in the horizontal direction and the vertical direction of the target multistage turbine vacuum pump are matched with the preset surge frequency (obtained through a pre-test), and based on the fact, the embodiment of the application can detect the surge risk at the first time, further confirm whether the surge occurs or not in time through the pressure monitoring result, further guarantee the timely intervention of emergency measures, and avoid irrecoverable loss.
And step 103, under the condition that the surge indication occurs in the target multi-stage turbine vacuum pump, determining the target stage for surging and the source stage for surging based on the inlet pressure and the outlet pressure of each stage of the target multi-stage turbine vacuum pump, and determining the surging reason by combining the liquid level of the gas-water separator.
Specifically, based on the foregoing, it can be seen that the target multi-stage turbine vacuum pump does not necessarily surge when the surge indication occurs, and based on this, the embodiment of the present application further determines whether or not surge occurs based on the pressure monitoring result. Based on the foregoing, it can be further known that the conventional method of determining whether surge occurs by comparing the vacuum pump pressure with the preset pressure threshold only detects the surge obviously, but the fault handling is already late. In view of this problem, further research of the embodiments of the present application has found that when the turbine vacuum pump is in surge, the inlet pressure and the outlet pressure thereof regularly fluctuate (i.e., regularly increase and decrease, similar to a sine wave), based on which, in the case that the target multistage turbine vacuum pump is in surge indication, the embodiments of the present application further determine whether surge occurs, the target stage in which surge occurs, and the source stage in which surge is caused based on the fluctuation frequency of the inlet pressure and the outlet pressure of each stage of the target multistage turbine vacuum pump. It can be appreciated that because the surge monitoring is performed only through the fluctuation frequency of the pressure, even if the fluctuation amplitude of the pressure is small, accurate detection can be realized, based on the detection, the timeliness of the surge monitoring can be ensured to the maximum extent, and the possible loss caused by the traditional surge monitoring mode is avoided.
Meanwhile, in the case of determining that the target multistage turbine vacuum pump is in surge, the target stage for the surge and the source stage for the surge are required to be further determined so as to take targeted emergency measures. Specifically, fig. 3 is a schematic flow chart of determining a target stage and a root cause stage according to the present application, and as shown in fig. 3, the determining a target stage for generating a surge and a root cause stage for causing a surge based on an inlet pressure and an outlet pressure of each stage of the target multistage turbine vacuum pump specifically includes:
step 1031, determining whether the fluctuation frequency of the inlet pressure and the outlet pressure of each stage is matched with a preset surge fluctuation frequency or not based on the inlet pressure and the outlet pressure of each stage of the target multistage turbine vacuum pump, and if so, determining the target stage for surging;
Step 1032, determining the source stage that causes surge based on the time at which each target stage inlet and outlet pressures fluctuates.
It can be understood that the preset surge fluctuation frequency is obtained through a pre-test, and if the fluctuation frequency of the inlet pressure and the outlet pressure of the current stage is matched with the preset surge fluctuation frequency, the current stage is judged to be the target stage of surging. Otherwise, the surge is judged not to occur, and the corresponding abnormal state reason can be determined to be loosening of the fixing piece. According to the method and the device, the loosening part can be determined through the vibration amplitude in the horizontal direction and the vertical direction under the condition that the fixing piece is loosened, and therefore, the loosening part can be determined by further combining the vibration amplitude in the horizontal direction and the vertical direction of each stage of the target multistage turbine vacuum pump under the condition that no surge occurs, and further, a targeted emergency control instruction, such as reducing the rotating speed and prompting a user to perform fastening operation, is sent to a distributed control unit corresponding to the target multistage turbine vacuum pump.
In the case of judging that surging occurs, it is noted that, in the case of a multistage turbine vacuum pump, if surging occurs in all the stages, it is likely that surging occurs in a certain stage, and therefore, to solve this problem, only the source stage causing surging needs to be found and processed, and therefore, the efficiency of fault diagnosis can be greatly improved. Specifically, the embodiment of the application can determine the source stage causing the surge based on the time of the fluctuation of the inlet pressure and the outlet pressure of each target stage. In addition, according to the embodiment of the application, the reason that the multistage turbine vacuum pump is subjected to surge mainly comprises two reasons, namely that one is that impurities or liquid enter an impeller (namely a rotor) due to the failure of a gas-water separator, and the other is that an impeller shaft loosens or the impeller deforms. Based on the above, after determining the target level of surging and the source level of surging, the embodiment of the application further determines the reason of surging by combining the liquid level of the gas-water separator, specifically, the method for determining the reason of surging by combining the liquid level of the gas-water separator specifically comprises the following steps:
If the liquid level of the gas-water separator exceeds the preset value, judging that the surge source is due to the gas-water separator fault, otherwise, determining the surge reason based on the vibration amplitude of the source stage in the horizontal direction and the vertical direction.
More specifically, the embodiment of the application discovers that the vibration amplitude in the horizontal direction and the vertical direction of the surge caused by the looseness of the impeller shaft and the deformation of the impeller has obvious difference through researches. Specifically, when the impeller shaft loosens to cause surge, the vibration amplitude in the horizontal direction and the vibration amplitude in the vertical direction are large, and when the impeller deforms to cause surge, the vibration amplitude in the horizontal direction is large, but the vibration amplitude in the vertical direction is small, based on the fact that the reason of the surge is not the failure of the gas-water separator, the embodiment of the application can determine whether the reason of the surge is the looseness of the impeller shaft or the deformation of the impeller based on the vibration amplitudes in the horizontal direction and the vertical direction of the source stage.
And 104, generating an emergency control instruction based on the surge reason and sending the emergency control instruction to a distributed control unit corresponding to the target multistage turbine vacuum pump.
Specifically, after the surge reason is determined, the embodiment of the application can generate an emergency control instruction based on the surge reason and send the emergency control instruction to the distributed control unit corresponding to the target multistage turbine vacuum pump. If the surge cause is that the gas-water separator fails, the gas-water separator is controlled to drain, if the surge cause is that the impeller shaft is loose, the shutdown maintenance is controlled, and if the surge cause is that the impeller is deformed, the vacuum pump is controlled to reduce the rotating speed, and a user is informed to carry out maintenance confirmation after the process is finished.
The method comprises the steps of determining whether the operation state of a target multi-stage turbine vacuum pump is abnormal or not based on the real-time turbine rotating speed of each stage of the target multi-stage turbine vacuum pump, determining whether a surge indication occurs to the target multi-stage turbine vacuum pump based on the vibration conditions of each stage of the target multi-stage turbine vacuum pump in the horizontal direction and the vertical direction under the condition that the operation state of the target multi-stage turbine vacuum pump is abnormal, determining the target stage of surging and the source stage of surging caused based on the inlet pressure and the outlet pressure of each stage of the target multi-stage turbine vacuum pump under the condition that the surge indication occurs to the target multi-stage turbine vacuum pump, determining the surging reason by combining the liquid level of a gas-water separator, generating emergency control instructions based on the surging reason and sending the emergency control instructions to a distributed control unit corresponding to the target multi-stage turbine vacuum pump, and realizing real-time monitoring and efficient fault processing of the operation state of the multi-stage turbine vacuum pump.
The fault handling device of the remote operation and maintenance system of the multi-stage turbine vacuum pump provided by the application is described below, and the fault handling device of the remote operation and maintenance system of the multi-stage turbine vacuum pump described below and the control method of the remote operation and maintenance system of the multi-stage turbine vacuum pump described above can be correspondingly referred to each other.
Based on any of the above embodiments, fig. 4 is a schematic structural diagram of a fault handling apparatus of a remote operation and maintenance system of a multi-stage turbine vacuum pump according to the present application, as shown in fig. 4, the apparatus includes:
A first judging module 201, configured to determine whether the operation state of the target multistage turbine vacuum pump is abnormal based on the real-time turbine rotational speeds of the stages of the target multistage turbine vacuum pump;
the second judging module 202 is configured to determine whether a surge indication occurs in the target multistage turbine vacuum pump based on vibration conditions of each stage of the target multistage turbine vacuum pump in a horizontal direction and a vertical direction under a condition that an operation state of the target multistage turbine vacuum pump is abnormal;
A first determining module 203, configured to determine a target stage at which surging occurs and a source stage at which surging is caused based on an inlet pressure and an outlet pressure of each stage of the target multi-stage turbine vacuum pump, and determine a reason for surging in combination with a gas-water separator liquid level, in the case of surging indication of the target multi-stage turbine vacuum pump;
the fault processing module 204 is used for generating an emergency control instruction based on the surge reason and sending the emergency control instruction to the distributed control unit corresponding to the target multistage turbine vacuum pump.
The device provided by the embodiment of the application comprises a first judging module 201 for determining whether the operation state of a target multi-stage turbine vacuum pump is abnormal or not based on the real-time turbine rotating speed of each stage of the target multi-stage turbine vacuum pump, a second judging module 202 for determining whether the surge indication occurs to the target multi-stage turbine vacuum pump based on the vibration conditions of each stage of the target multi-stage turbine vacuum pump in the horizontal direction and the vertical direction under the condition that the operation state of the target multi-stage turbine vacuum pump is abnormal, a first determining module 203 for determining the target stage of surge and the source stage of the surge based on the inlet pressure and the outlet pressure of each stage of the target multi-stage turbine vacuum pump under the condition that the surge indication occurs to the target multi-stage turbine vacuum pump, and a fault processing module 204 for generating emergency control instructions based on the surge cause and transmitting the emergency control instructions to a distributed control unit corresponding to the target multi-stage turbine vacuum pump, and can realize real-time monitoring and efficient fault processing of the operation state of the multi-stage turbine vacuum pump.
Based on any of the above embodiments, the determining whether the operation state of the target multistage turbine vacuum pump is abnormal based on the real-time turbine rotational speeds of the stages of the target multistage turbine vacuum pump specifically includes:
And if so, acquiring the latest rotation speed combination and performing secondary comparison with the real-time rotation speeds of all stages of the target multi-stage turbine vacuum pump, and judging that the running state of the target multi-stage turbine vacuum pump is abnormal under the condition that the secondary comparison result indicates that the real-time rotation speeds are abnormal.
Based on any one of the above embodiments, the determining whether the surge indication occurs in the target multistage turbine vacuum pump based on the vibration conditions of each stage in the horizontal direction and the vertical direction of the target multistage turbine vacuum pump specifically includes:
and obtaining the vibration frequencies of each level of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction, and judging the surge indication of the target multistage turbine vacuum pump if the vibration frequencies of each level of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction are matched with the preset surge frequency.
Based on any of the above embodiments, the determining the target stage for surging and the source stage for surging based on the inlet pressure and the outlet pressure of each stage of the target multi-stage turbine vacuum pump specifically includes:
Determining whether the fluctuation frequency of the inlet pressure and the outlet pressure of each stage is matched with a preset surge fluctuation frequency or not based on the inlet pressure and the outlet pressure of each stage of the target multistage turbine vacuum pump, and if so, determining the target stage of surge;
The source stage that causes the surge is determined based on the time at which the inlet and outlet pressures of each target stage fluctuate.
Based on any of the above embodiments, the determining the surge cause by combining the gas-water separator liquid level specifically includes:
If the liquid level of the gas-water separator exceeds the preset value, judging that the surge source is due to the gas-water separator fault, otherwise, determining the surge reason based on the vibration amplitude of the source stage in the horizontal direction and the vertical direction.
Fig. 5 illustrates a physical schematic diagram of an electronic device, which may include a processor 301, a communication interface (Communications Interface) 302, a memory 303, and a communication bus 304, where the processor 301, the communication interface 302, and the memory 303 perform communication with each other through the communication bus 304, as shown in fig. 5. The processor 301 may call logic instructions in the memory 303 to execute the fault handling method of the remote operation and maintenance system of the multistage turbine vacuum pump provided by the above methods, where the method includes determining whether an operation state of the target multistage turbine vacuum pump is abnormal based on a real-time turbine rotation speed of each stage of the target multistage turbine vacuum pump, determining whether a surge indication occurs in the target multistage turbine vacuum pump based on vibration conditions of each stage of the target multistage turbine vacuum pump in a horizontal direction and a vertical direction in case of the operation state of the target multistage turbine vacuum pump being abnormal, determining a target stage at which surge occurs and a source stage at which the surge is caused based on an inlet pressure and an outlet pressure of each stage of the target multistage turbine vacuum pump in case of the surge indication, and determining a surge cause in combination with a gas-water separator liquid level, generating an emergency control instruction based on the surge cause, and transmitting the emergency control instruction to a distributed control unit corresponding to the target multistage turbine vacuum pump.
Further, the logic instructions in the memory 303 may be implemented in the form of software functional units and stored in a computer readable storage medium when sold or used as a stand alone product. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. The storage medium includes a U disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, an optical disk, or other various media capable of storing program codes.
In another aspect, the application further provides a computer program product, the computer program product comprises a computer program, the computer program can be stored on a non-transitory computer readable storage medium, when the computer program is executed by a processor, the computer can execute the fault handling method of the remote operation and maintenance system of the multistage turbine vacuum pump provided by the methods, the method comprises the steps of determining whether the operation state of the target multistage turbine vacuum pump is abnormal or not based on the real-time turbine rotating speed of each stage of the target multistage turbine vacuum pump, determining whether the surge indication of the target multistage turbine vacuum pump occurs or not based on the vibration conditions of each stage of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction under the abnormal operation state of the target multistage turbine vacuum pump, determining the target stage of the surge and the root cause of the surge based on the inlet pressure and the outlet pressure of each stage of the target multistage turbine vacuum pump under the surge indication of the target multistage turbine vacuum pump, determining the reason of the surge and combining the liquid level of a gas-water separator, and generating an emergency control instruction based on the reason of the surge and sending the emergency control instruction to a distributed control unit corresponding to the target multistage turbine vacuum pump.
In yet another aspect, the present application provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs a method for processing a fault in a remote operation and maintenance system of a multi-stage turbo vacuum pump provided by the above methods, the method comprising determining whether an operational state of a target multi-stage turbo vacuum pump is abnormal based on a real-time turbine speed of each stage of the target multi-stage turbo vacuum pump, determining whether a surge indication occurs in the target multi-stage turbo vacuum pump based on vibration conditions of each stage of the target multi-stage turbo vacuum pump in a horizontal direction and a vertical direction in the case of the operational state of the target multi-stage turbo vacuum pump being abnormal, determining a target stage at which a surge occurs and a source stage at which the surge occurs based on an inlet pressure and an outlet pressure of each stage of the target multi-stage turbo vacuum pump in the case of the target multi-stage turbo vacuum pump, and determining a surge cause in combination with a gas-water separator level, generating an emergency control command based on the surge cause and transmitting the emergency control command to a distributed control unit corresponding to the target multi-stage turbo vacuum pump.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
It should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same, and although the present application has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the technical solution described in the above-mentioned embodiments may be modified or some technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiments of the present application.
Claims (5)
1. A fault handling method for a remote operation and maintenance system of a multi-stage turbine vacuum pump, the method being applied to a remote operation and maintenance center of the remote operation and maintenance system of the multi-stage turbine vacuum pump, the remote operation and maintenance system of the multi-stage turbine vacuum pump comprising:
the remote operation and maintenance center and the monitoring unit are arranged on the production site;
The monitoring unit comprises a sensor group corresponding to the target multistage turbine vacuum pump, a distributed control unit and an intelligent gateway, wherein the sensor group is used for collecting operation data of the target multistage turbine vacuum pump, the distributed control unit is used for receiving the operation data of the target multistage turbine vacuum pump and sending the operation data to the remote operation and maintenance center through the intelligent gateway, and the distributed control unit is also used for carrying out emergency operation on the target multistage turbine vacuum pump based on an emergency control instruction of the remote operation and maintenance center;
The remote operation and maintenance center is used for performing fault diagnosis based on the operation data of the target multi-stage turbine vacuum pump, generating an emergency control instruction under the condition that the target multi-stage turbine vacuum pump fails, and sending the emergency control instruction to the distributed control unit corresponding to the target multi-stage turbine vacuum pump;
The sensor group comprises sensor subgroups corresponding to each stage of the target multi-stage turbine vacuum pump, wherein each sensor subgroup comprises an inlet pressure sensor, an outlet pressure sensor, a horizontal vibration sensor and a vertical vibration sensor, the inlet pressure sensor is used for detecting the inlet pressure of the corresponding stage, the outlet pressure sensor is used for detecting the outlet pressure of the corresponding stage, the horizontal vibration sensor is used for detecting the vibration condition of the corresponding stage in the horizontal direction, and the vertical vibration sensor is used for detecting the vibration condition of the corresponding stage in the vertical direction;
The distributed control unit is also used for controlling the operation of the multistage turbine vacuum pump based on a rotating speed combination preset by a user and synchronously transmitting the preset rotating speed combination to a remote operation and maintenance center, and correspondingly, each sensor subgroup also comprises a rotating speed sensor for detecting the rotating speed of the turbine of the corresponding stage;
the method comprises the following steps:
Determining whether the operation state of the target multistage turbine vacuum pump is abnormal or not based on the real-time turbine rotation speed of each stage of the target multistage turbine vacuum pump;
Under the condition that the running state of the target multistage turbine vacuum pump is abnormal, determining whether the surge indication occurs to the target multistage turbine vacuum pump or not based on the vibration conditions of each stage of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction;
Under the condition of surging indication of the target multi-stage turbine vacuum pump, determining a target stage for surging and a source stage for surging based on inlet pressure and outlet pressure of each stage of the target multi-stage turbine vacuum pump, and determining a surging reason by combining the liquid level of the gas-water separator;
Generating an emergency control instruction based on the surge reason and sending the emergency control instruction to a distributed control unit corresponding to the target multistage turbine vacuum pump;
The method for determining whether the running state of the target multistage turbine vacuum pump is abnormal based on the real-time turbine rotating speed of each stage of the target multistage turbine vacuum pump specifically comprises the following steps:
And if so, acquiring the latest rotation speed combination and performing secondary comparison with the real-time rotation speeds of all stages of the target multi-stage turbine vacuum pump, and judging that the running state of the target multi-stage turbine vacuum pump is abnormal under the condition that the secondary comparison result indicates that the real-time rotation speeds are abnormal.
2. The fault handling method for a remote operation and maintenance system of a multistage turbine vacuum pump according to claim 1, wherein the determining whether the surge indication occurs in the target multistage turbine vacuum pump based on the vibration conditions of each stage of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction specifically comprises:
and obtaining the vibration frequencies of each level of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction, and judging the surge indication of the target multistage turbine vacuum pump if the vibration frequencies of each level of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction are matched with the preset surge frequency.
3. The method for processing the fault of the remote operation and maintenance system of the multistage turbine vacuum pump according to claim 2, wherein the determining the target stage for surging and the source stage for surging based on the inlet pressure and the outlet pressure of each stage of the target multistage turbine vacuum pump specifically comprises:
Determining whether the fluctuation frequency of the inlet pressure and the outlet pressure of each stage is matched with a preset surge fluctuation frequency or not based on the inlet pressure and the outlet pressure of each stage of the target multistage turbine vacuum pump, and if so, determining the target stage of surge;
The source stage that causes the surge is determined based on the time at which the inlet and outlet pressures of each target stage fluctuate.
4. The method for fault handling of a remote operation and maintenance system of a multistage turbine vacuum pump according to claim 3, wherein said determining a surge cause in combination with a gas-water separator level comprises:
If the liquid level of the gas-water separator exceeds the preset value, judging that the surge source is due to the gas-water separator fault, otherwise, determining the surge reason based on the vibration amplitude of the source stage in the horizontal direction and the vertical direction.
5. A fault handling device for a remote operation and maintenance system of a multi-stage turbine vacuum pump, the device being applied to a remote operation and maintenance center of the remote operation and maintenance system of the multi-stage turbine vacuum pump, the remote operation and maintenance system of the multi-stage turbine vacuum pump comprising:
the remote operation and maintenance center and the monitoring unit are arranged on the production site;
The monitoring unit comprises a sensor group corresponding to the target multistage turbine vacuum pump, a distributed control unit and an intelligent gateway, wherein the sensor group is used for collecting operation data of the target multistage turbine vacuum pump, the distributed control unit is used for receiving the operation data of the target multistage turbine vacuum pump and sending the operation data to the remote operation and maintenance center through the intelligent gateway, and the distributed control unit is also used for carrying out emergency operation on the target multistage turbine vacuum pump based on an emergency control instruction of the remote operation and maintenance center;
The remote operation and maintenance center is used for performing fault diagnosis based on the operation data of the target multi-stage turbine vacuum pump, generating an emergency control instruction under the condition that the target multi-stage turbine vacuum pump fails, and sending the emergency control instruction to the distributed control unit corresponding to the target multi-stage turbine vacuum pump;
The sensor group comprises sensor subgroups corresponding to each stage of the target multi-stage turbine vacuum pump, wherein each sensor subgroup comprises an inlet pressure sensor, an outlet pressure sensor, a horizontal vibration sensor and a vertical vibration sensor, the inlet pressure sensor is used for detecting the inlet pressure of the corresponding stage, the outlet pressure sensor is used for detecting the outlet pressure of the corresponding stage, the horizontal vibration sensor is used for detecting the vibration condition of the corresponding stage in the horizontal direction, and the vertical vibration sensor is used for detecting the vibration condition of the corresponding stage in the vertical direction;
The distributed control unit is also used for controlling the operation of the multistage turbine vacuum pump based on a rotating speed combination preset by a user and synchronously transmitting the preset rotating speed combination to a remote operation and maintenance center, and correspondingly, each sensor subgroup also comprises a rotating speed sensor for detecting the rotating speed of the turbine of the corresponding stage;
The device comprises:
the first judging module is used for determining whether the running state of the target multistage turbine vacuum pump is abnormal or not based on the real-time turbine rotating speeds of all stages of the target multistage turbine vacuum pump;
The second judging module is used for determining whether the surge indication occurs to the target multistage turbine vacuum pump or not based on the vibration conditions of each stage of the target multistage turbine vacuum pump in the horizontal direction and the vertical direction under the condition that the operation state of the target multistage turbine vacuum pump is abnormal;
the first determining module is used for determining a target level for surging and a source level for surging based on inlet pressure and outlet pressure of each level of the target multi-level turbine vacuum pump under the condition of surging indication of the target multi-level turbine vacuum pump, and determining a surging reason by combining the liquid level of the gas-water separator;
The fault processing module is used for generating an emergency control instruction based on the surge reason and sending the emergency control instruction to a distributed control unit corresponding to the target multistage turbine vacuum pump;
The method for determining whether the running state of the target multistage turbine vacuum pump is abnormal based on the real-time turbine rotating speed of each stage of the target multistage turbine vacuum pump specifically comprises the following steps:
And if so, acquiring the latest rotation speed combination and performing secondary comparison with the real-time rotation speeds of all stages of the target multi-stage turbine vacuum pump, and judging that the running state of the target multi-stage turbine vacuum pump is abnormal under the condition that the secondary comparison result indicates that the real-time rotation speeds are abnormal.
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| CN101881269A (en) * | 2009-05-07 | 2010-11-10 | 通用电气公司 | Multistage compressor faut detection and protection |
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| CN111779675A (en) * | 2020-06-10 | 2020-10-16 | 中国重型机械研究院股份公司 | Intelligent mechanical vacuum pump system for steelmaking based on Internet of things and application |
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| JPH06129244A (en) * | 1992-10-13 | 1994-05-10 | Nissan Motor Co Ltd | Diagnosing device for secondary air intake device |
| JP2021143648A (en) * | 2020-03-13 | 2021-09-24 | 三菱重工業株式会社 | Surging precursor detecting device, method for detecting surging precursor, and program |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881269A (en) * | 2009-05-07 | 2010-11-10 | 通用电气公司 | Multistage compressor faut detection and protection |
| CN108343513A (en) * | 2017-01-23 | 2018-07-31 | 斗山重工业建设有限公司 | The surge margin control method of gas turbine and the air extractor of gas turbine |
| CN111779675A (en) * | 2020-06-10 | 2020-10-16 | 中国重型机械研究院股份公司 | Intelligent mechanical vacuum pump system for steelmaking based on Internet of things and application |
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