CN108119384B - Rotor dynamic balance adjusting method and device of centrifugal compressor - Google Patents
Rotor dynamic balance adjusting method and device of centrifugal compressor Download PDFInfo
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- CN108119384B CN108119384B CN201711046215.7A CN201711046215A CN108119384B CN 108119384 B CN108119384 B CN 108119384B CN 201711046215 A CN201711046215 A CN 201711046215A CN 108119384 B CN108119384 B CN 108119384B
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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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- 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
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/662—Balancing of rotors
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Abstract
The invention discloses a dynamic balance adjusting method and device for a rotor of a centrifugal compressor, relates to the technical field of centrifugal compressors, and can realize online dynamic balance of the rotor. The method comprises the following steps: monitoring the vibration state of a rotor of the centrifugal compressor in real time in the running process of the centrifugal compressor unit; if the vibration state meets a preset vibration alarm condition, acquiring the phase and the mass of the dynamic balance imbalance of the rotor according to the vibration state; and sending an online dynamic balance adjusting instruction to a dynamic balance device pre-configured on the rotor according to the phase and the mass so as to realize online dynamic balance of the rotor by adjusting a balance weight in the dynamic balance device. The invention is suitable for the dynamic balance adjustment of the rotor of the centrifugal compressor.
Description
Technical Field
The invention relates to the technical field of centrifugal compressors, in particular to a method and a device for adjusting the dynamic balance of a rotor of a centrifugal compressor.
Background
Centrifugal compressors are generally multi-stage and allow the gas to achieve a higher pressure. Some centrifugal compressors can generate coking due to polymerization reaction of process gases, for example, product gases and the like contain olefins and high-carbon gases, and when the product gases are compressed, the coking can be generated due to temperature rise, and coking materials can be adhered to centrifugal compressor flow passages and parts such as impellers and diffusers, so that the pneumatic performance of the centrifugal compressors is seriously influenced. Uneven coverage or partial sudden shedding of the coke can affect the balance of the rotor of the centrifugal compressor, and can cause the centrifugal compressor to vibrate and exceed the standard, even stop. Some centrifugal compressors run for a long time or are placed for a long time, so that the rotor is deformed, the mass eccentricity is serious, and the centrifugal compressor can vibrate to exceed the standard and even stop.
At present, when the dynamic balance of a rotor of a centrifugal compressor is damaged, the balance of the rotor is deteriorated, vibration is increased, and therefore when a parking accident happens, only a centrifugal compressor unit is disassembled after the centrifugal compressor unit is stopped, and the rotor is conveyed back to a production factory to be subjected to high-speed dynamic balance adjustment again.
However, in the above manner, since the centrifugal compressor unit has a complex structure, it takes much time to disassemble and transport the centrifugal compressor unit, and further the efficiency of dynamic balance adjustment of the rotor is affected, thereby affecting the working time of the centrifugal compressor.
Disclosure of Invention
In view of the above, the present invention provides a method and an apparatus for adjusting dynamic balance of a rotor of a centrifugal compressor, and mainly aims to solve the problem that the efficiency of dynamic balance adjustment of the rotor is affected by the way of disassembling a centrifugal compressor unit and transporting the rotor back to a production manufacturer for high-speed dynamic balance adjustment processing, so that the working time of the centrifugal compressor is affected.
According to an aspect of the present invention, there is provided a rotor dynamic balance adjusting method of a centrifugal compressor, the method including:
monitoring the vibration state of a rotor of the centrifugal compressor in real time in the running process of the centrifugal compressor unit;
if the vibration state meets a preset vibration alarm condition, acquiring the phase and the mass of the dynamic balance imbalance of the rotor according to the vibration state;
and sending an online dynamic balance adjusting instruction to a dynamic balance device pre-configured on the rotor according to the phase and the mass so as to realize online dynamic balance of the rotor by adjusting a balance weight in the dynamic balance device.
According to another aspect of the present invention, there is provided a rotor dynamic balance adjustment apparatus of a centrifugal compressor, the apparatus comprising:
the monitoring unit is used for monitoring the vibration state of the rotor of the centrifugal compressor in real time in the running process of the centrifugal compressor unit;
the acquisition unit is used for acquiring the phase and the mass of the dynamic balance imbalance of the rotor according to the vibration state monitored by the monitoring unit if the vibration state meets a preset vibration alarm condition;
and the sending unit is used for sending an online dynamic balance adjusting instruction to a dynamic balance device which is configured on the rotor in advance according to the phase and the mass which are obtained by the obtaining unit, so that the online dynamic balance of the rotor is realized by adjusting a balance weight in the dynamic balance device.
According to a further aspect of the present invention, there is provided a storage device having stored thereon a computer program which, when executed by a processor, implements the above-described centrifugal compressor rotor dynamic balance adjustment method.
According to another aspect of the present invention, there is provided a physical apparatus for adjusting the dynamic balance of a rotor of a centrifugal compressor, comprising a storage device, a processor and a computer program stored on the storage device and executable on the processor, wherein the processor implements the method for adjusting the dynamic balance of the rotor of the centrifugal compressor when executing the program.
By the technical proposal, the invention provides a method and a device for adjusting the dynamic balance of the rotor of the centrifugal compressor, compared with the prior mode of disassembling the centrifugal compressor unit and transporting the rotor back to a production manufacturer for high-speed dynamic balance adjustment treatment, the invention can realize the dynamic balance adjustment of the rotor in the running process of the centrifugal compressor unit, when the abnormal dynamic balance of the rotor is monitored, an online dynamic balance adjusting instruction is sent to a dynamic balance device which is configured in advance on the rotor according to the phase and the quality of the unbalanced dynamic balance of the rotor, so that through adjusting the counter weight balancing piece among the dynamic balance device, the online dynamic balance of rotor is realized to intelligence, has reduced the probability of unexpected parking, has improved centrifugal compressor unit operational safety, guarantees that the unit can steady normal operating, need not to disassemble centrifugal compressor unit and return to the manufacturing factory, has saved the time, has improved the efficiency that the dynamic balance of rotor was adjusted.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic flow chart illustrating a method for adjusting the dynamic balance of a rotor of a centrifugal compressor according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating another method for adjusting the dynamic balance of a rotor of a centrifugal compressor according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram illustrating a dynamic balance adjustment system architecture of a rotor according to an embodiment of the present invention;
fig. 4 is a schematic virtual structure diagram illustrating a dynamic balance adjustment device for a rotor of a centrifugal compressor according to an embodiment of the present invention;
FIG. 5 is a schematic virtual structure diagram of a dynamic balance adjustment device for a rotor of a centrifugal compressor according to another embodiment of the present invention;
fig. 6 shows a schematic structural diagram of a physical device for adjusting the dynamic balance of a rotor of a centrifugal compressor according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
At present, in order to solve the problem that the dynamic balance of the rotor of the centrifugal compressor is damaged, the rotor balance is deteriorated, the centrifugal compressor unit can be disassembled after being stopped, and the rotor is transported back to a production factory to be subjected to high-speed dynamic balance adjustment again, but because the centrifugal compressor unit is complex in structure, more time can be consumed for disassembling and transporting the centrifugal compressor unit, the dynamic balance adjustment efficiency of the rotor can be influenced, and the working time of the centrifugal compressor is influenced.
In order to solve the above problems, an embodiment of the present invention provides a method for adjusting dynamic balance of a rotor of a centrifugal compressor, which may be specifically applied to a centrifugal compressor having an online dynamic balance function of the rotor, and may improve efficiency of adjusting dynamic balance of the rotor, and may ensure that a centrifugal compressor unit operates stably and normally, as shown in fig. 1, the method includes:
101. and in the running process of the centrifugal compressor unit, monitoring the vibration state of a rotor of the centrifugal compressor in real time.
The execution main body of the embodiment of the present invention may be a device for dynamic balance adjustment of a rotor of a centrifugal compressor having a rotor online dynamic balance function, where the device may monitor a vibration state of the rotor of the centrifugal compressor in real time, and perform the dynamic balance adjustment of the rotor of the centrifugal compressor in real time according to the vibration state, and specifically execute the processes described in steps 102 to 103.
102. And if the vibration state meets the preset vibration alarm condition, acquiring the phase and the mass of the dynamic balance imbalance of the rotor according to the monitored vibration state.
The preset vibration alarm condition can be preset according to actual requirements. For example, the preset vibration alarm condition may be that the amplitude of the rotor vibration is greater than a certain threshold, when the vibration amplitude of the rotor of the centrifugal compressor unit is monitored to be greater than the certain threshold, it is determined that the vibration state of the rotor meets the preset vibration alarm condition, that is, the dynamic balance of the rotor is damaged, it is diagnosed that the vibration of the end of the rotor exceeds the standard, and the phase and the quality of the dynamic balance imbalance of the rotor are calculated according to the vibration amplitude of the end.
103. And sending an online dynamic balance adjusting instruction to a dynamic balance device pre-configured on the rotor according to the obtained phase and the obtained quality.
Furthermore, online dynamic balance of the rotor is realized by adjusting a balance weight in the dynamic balance device. The counterweight block may be a mass block, and may have various forms, for example, the counterweight block may be a mass block that rotates arbitrarily along the circumferential direction of the rotor.
For example, according to the phase and mass of the dynamic balance imbalance of the rotor, the position of the counterweight balance block on the rotor is calculated, the unbalance of the rotor can be offset, and a corresponding online dynamic balance adjustment instruction is sent to drive the dynamic balance device to adjust the position of the counterweight balance block according to the calculated position, so that the rotor reaches the balance state again, and the standard of safe operation is reached.
The rotor dynamic balance adjusting method of the centrifugal compressor provided by the embodiment of the invention is compared with the prior method that a centrifugal compressor unit is disassembled, compared with the mode of transporting the rotor back to a production factory for high-speed dynamic balance adjustment treatment again, the embodiment of the invention can realize the dynamic balance adjustment of the rotor in the running process of the centrifugal compressor unit, when the abnormal dynamic balance of the rotor is monitored, an online dynamic balance adjusting instruction is sent to a dynamic balance device which is configured in advance on the rotor according to the phase and the quality of the unbalanced dynamic balance of the rotor, so that through adjusting the counter weight balancing piece among the dynamic balance device, the online dynamic balance of rotor is realized to intelligence, has reduced the probability of unexpected parking, has improved centrifugal compressor unit operational safety, guarantees that the unit can steady normal operating, need not to disassemble centrifugal compressor unit and return to the manufacturing factory, has saved the time, has improved the efficiency that the dynamic balance of rotor was adjusted.
Further, as a refinement and an extension of the embodiment of the above embodiment, in combination with the components of the centrifugal compressor having the rotor online dynamic balance function, the implementation process of the above embodiment is described, and another rotor dynamic balance adjusting method of the centrifugal compressor is provided, as shown in fig. 2, the method includes:
201. in the running process of the centrifugal compressor unit, the distance parameter between a probe arranged on a stator of the centrifugal compressor and the excircle of a rotor of the centrifugal compressor is acquired in real time.
The probe is used for monitoring the vibration condition of the rotor, reading the vibration of the rotor in real time and outputting a distance parameter between the outer circle of the rotor and the probe.
202. And determining the vibration state of the centrifugal compressor rotor according to the acquired distance parameters.
After the distance parameters are acquired, the vibration state of the centrifugal compressor rotor is obtained in real time through processing by a subsequent processing controller.
203. And if the acquired distance parameter is greater than a preset distance threshold, outputting alarm information.
Wherein, the warning information is used for prompting that the dynamic balance of the rotor is damaged. The alarm information can be character alarm information, picture alarm information, audio alarm information, video alarm information and the like. The preset distance threshold value can be preset according to actual conditions and is used for judging whether the dynamic balance of the rotor is damaged or not.
In the embodiment of the invention, the vibration state of the unit can be reflected in real time, when the vibration rises to reach a certain threshold value, alarm information can be sent, at the moment, an operator can judge whether to perform online dynamic balance adjustment on the rotor according to needs, if the dynamic balance adjustment is performed, the rotor is balanced again, and the vibration value is reduced; or after a preset time period, the system does not receive the relevant operation instruction of the operator, and the rotor online dynamic balance adjustment can be performed by default.
204. And determining a vibration end of the rotor with the vibration value larger than a preset vibration threshold value and a vibration amplitude corresponding to the vibration end according to the vibration value signal corresponding to the vibration state of the rotor.
And according to the vibration value signal corresponding to the vibration state of the rotor at the moment, diagnosing which end vibration exceeds the standard and corresponding vibration amplitude.
205. And determining the phase and the mass of the dynamic balance imbalance of the rotor according to the determined vibration end and the vibration amplitude.
206. And according to the phase and the mass of the dynamic balance imbalance of the rotor, transmitting a control signal and driving energy corresponding to the online dynamic balance adjusting instruction to a receiver corresponding to a dynamic balance device configured in advance on the rotor through a transmitter on a stator of the centrifugal compressor.
Specifically, the transmission is performed through the wireless connection between the transmitter and the receiver, and further, the dynamic balancing device drives the counterweight balance blocks in the dynamic balancing device by using the driving energy received by the receiver according to the control signal received by the receiver, so as to realize the online dynamic balancing of the rotor. The result after the balance can be reflected on the acquired distance parameter between the probe and the outer circle of the centrifugal compressor rotor.
In order to illustrate the implementation process of this mode, in an optional embodiment of the present invention, the step of implementing online dynamic balancing of the rotor by adjusting the counterweight block in the dynamic balancing apparatus may specifically include: the position of a balance weight in the dynamic balance device is changed to balance the eccentric mass of the rotor, so that the online dynamic balance of the rotor is realized, wherein the positions of the balance weight are different, and the obtained mass balance effect of the rotor is different.
For example, two dynamic balance devices are configured on the rotor, each dynamic balance device contains a mass block, the two mass blocks can form any angle, and different positions of the mass blocks can obtain the counterweight effect of different angles and different equivalent masses.
In the optional embodiment, the position of the counterweight balance block is changed, namely the phase angle is changed, so that the eccentric mass of the rotor is balanced, the rotor is in a balanced state again, the online dynamic balance of the rotor is further realized, the method is simple and efficient, and the dynamic balance of the rotor can be quickly adjusted.
In addition to the above optional embodiments, in order to enrich the implementation process of the embodiments of the present invention, in another optional embodiment of the present invention, the step of implementing online dynamic balancing of the rotor by adjusting the counterweight balance block in the dynamic balancing apparatus may specifically include: the shape of the balance weight in the dynamic balance device is changed to balance the eccentric mass of the rotor, so that the online dynamic balance of the rotor is realized, wherein the shapes of the balance weight are different, and the obtained mass balance effect of the rotor is different.
In this optional embodiment, the shape of the counterweight balance block is changed, so that the mass gravity center position of the counterweight balance block can be changed to balance the eccentric mass of the rotor, the rotor is enabled to reach a balance state again, the online dynamic balance of the rotor is further realized, the method is simple and efficient, and the dynamic balance of the rotor can be quickly adjusted.
It should be noted that, according to the actual situation, the two optional manners may be used in combination to achieve the optimal dynamic balance adjustment effect of the rotor.
For better explanation of the above embodiments, in combination with the examples shown in fig. 1 and fig. 2, a corresponding rotor dynamic balance adjustment system architecture is given, as shown in fig. 3, including a vibration monitoring system, a vibration diagnosis controller, a dynamic balance controller, and a dynamic balance actuator, where the vibration monitoring system is composed of a probe and a subsequent processing controller thereof; the vibration diagnosis controller makes diagnosis and sends out control signal instructions according to the vibration signals detected by the vibration monitoring system.
When the dynamic balance controller A or the dynamic balance controller B receives the instruction or receives the instruction at the same time, the dynamic balance actuator A or the dynamic balance controller B acts at the same time, the online dynamic balance is carried out, the overweight phase and the overweight quality are judged according to the monitoring result of the vibration monitoring system, the online dynamic balance is carried out, and the balanced result can be reflected on the vibration monitoring system. After the dynamic balance controller A or B sends out a control command, the control command is transmitted to a transmitter by a cable, and the transmitter is fixedly arranged on a stator of the compressor. The rotor is provided with a receiver, the transmitter and the receiver are connected in a wireless mode, and the transmitter transmits control signals and driving energy to the receiver. And the dynamic balance actuator A or the dynamic balance actuator B drives the mass block in the dynamic balance actuator by using the energy received by the receiver according to the control signal received by the receiver, and changes the phase angle to balance the eccentric mass of the rotor, so that the rotor reaches a balance state again.
According to the other method for adjusting the dynamic balance of the rotor of the centrifugal compressor, which is provided by the embodiment of the invention, the online dynamic balance of the rotor can be intelligently realized in multiple modes, the probability of unexpected stop is reduced, the operation safety of a centrifugal compressor unit is improved, the unit can be ensured to stably and normally operate, the centrifugal compressor unit does not need to be disassembled and returned to a production manufacturer, the time is saved, and the efficiency of adjusting the dynamic balance of the rotor is improved.
Further, as a specific implementation of the method shown in fig. 1 and 2, an embodiment of the present invention provides a virtual device for rotor dynamic balance adjustment of a centrifugal compressor, as shown in fig. 4, the device includes: monitoring unit 31, acquisition unit 32, and transmission unit 33.
The monitoring unit 31 can be used for monitoring the vibration state of the rotor of the centrifugal compressor in real time in the operation process of the centrifugal compressor unit;
the obtaining unit 32 may be configured to obtain a phase and a mass of the dynamic balance imbalance of the rotor according to the vibration state monitored by the monitoring unit 31 if the vibration state meets a preset vibration alarm condition;
the sending unit 33 may be configured to send an online dynamic balance adjustment instruction to a dynamic balance device configured in advance on the rotor according to the phase and the mass acquired by the acquiring unit 32.
Furthermore, the online dynamic balance of the rotor is realized by adjusting a balance weight in the dynamic balance device.
In a specific application scenario, the online dynamic balance of the rotor is realized by adjusting a counterweight balance block in the dynamic balance device, which specifically includes: the position of a balance weight in the dynamic balance device is changed to balance the eccentric mass of the rotor, so that the online dynamic balance of the rotor is realized, wherein the positions of the balance weight are different, and the obtained mass balance effect of the rotor is different.
In a specific application scenario, the online dynamic balance of the rotor is realized by adjusting a counterweight balance block in the dynamic balance device, which specifically includes: the online dynamic balance of the rotor is realized by changing the shape of a balance weight in the dynamic balance device to balance the eccentric mass of the rotor, wherein the shapes of the balance weight are different, and the obtained mass balance effect of the rotor is different.
In a specific application scenario, the monitoring unit 31 is specifically configured to acquire, in real time, a distance parameter between a probe configured on a stator of a centrifugal compressor and an outer circle of a rotor of the centrifugal compressor; and determining the vibration state of the centrifugal compressor rotor according to the distance parameter.
In a specific application scenario, the preset vibration alarm condition may be that the distance parameter is greater than a preset distance threshold, as shown in fig. 5, where the apparatus further includes: an output unit 34;
an output unit 34, configured to output alarm information if the distance parameter is greater than the preset distance threshold, where the alarm information is used to prompt that the dynamic balance of the rotor is damaged;
the obtaining unit 32 is specifically configured to determine, according to the vibration value signal corresponding to the vibration state, a vibration end at which the vibration value of the rotor is greater than a preset vibration threshold value, and a vibration amplitude corresponding to the vibration end; and determining the phase and the mass of the dynamic balance imbalance of the rotor according to the vibration end and the vibration amplitude.
In a specific application scenario, the sending unit 33 is specifically configured to transmit, according to the phase and the mass, a control signal and driving energy corresponding to the on-line dynamic balance adjustment command to a receiver corresponding to a dynamic balance device pre-configured on the rotor through a transmitter on the stator of the centrifugal compressor.
Furthermore, the dynamic balance device drives a counterweight balance block in the dynamic balance device by using the driving energy received by the receiver according to the control signal received by the receiver, so as to realize the online dynamic balance of the rotor.
It should be noted that, for other corresponding descriptions of the functional units related to the rotor dynamic balance adjustment device of the centrifugal compressor provided in the embodiment of the present invention, reference may be made to the corresponding descriptions in fig. 3 and fig. 4, and details are not repeated herein.
Based on the above-mentioned methods as shown in fig. 1 and fig. 2, correspondingly, the embodiment of the present invention further provides a storage device, on which a computer program is stored, and the program is executed by a processor to implement the rotor dynamic balance adjusting method of the centrifugal compressor shown in fig. 1 and fig. 2.
Based on the method shown in fig. 1 and fig. 2, an embodiment of the present invention further provides a physical device for dynamic balance adjustment of a centrifugal compressor rotor, as shown in fig. 6, the device includes: a storage device 42 and a processor 41, and a computer program stored on the storage device and executable on the processor, wherein the storage device 42 and the processor 41 are both disposed on a bus 43, and the processor 41 executes the program to implement the rotor dynamic balance adjustment method of the centrifugal compressor described in fig. 1 and 2.
By applying the technical scheme of the invention, the online dynamic balance of the rotor can be intelligently realized in various modes, the probability of unexpected shutdown is reduced, the operation safety of the centrifugal compressor unit is improved, the unit can stably and normally operate without disassembling the centrifugal compressor unit and returning to a production manufacturer, the time is saved, and the efficiency of dynamic balance adjustment of the rotor is improved.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present application can be implemented by hardware, and also by software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.), and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the implementation scenarios of the present application.
Those skilled in the art will appreciate that the figures are merely schematic representations of one preferred implementation scenario and that the blocks or flow diagrams in the figures are not necessarily required to practice the present application.
Those skilled in the art will appreciate that the modules in the devices in the implementation scenario may be distributed in the devices in the implementation scenario according to the description of the implementation scenario, or may be located in one or more devices different from the present implementation scenario with corresponding changes. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.
The above application serial numbers are for description purposes only and do not represent the superiority or inferiority of the implementation scenarios.
The above disclosure is only a few specific implementation scenarios of the present application, but the present application is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present application.
Claims (5)
1. A method of adjusting the dynamic balance of a rotor of a centrifugal compressor, comprising:
at the in-process of centrifugal compressor unit operation, the vibration state of the rotor of real-time supervision centrifugal compressor specifically includes: acquiring distance parameters between a probe arranged on a stator of a centrifugal compressor and an excircle of a rotor of the centrifugal compressor in real time; determining the vibration state of the centrifugal compressor rotor according to the distance parameter;
if the vibration state meets a preset vibration alarm condition, acquiring the phase and the mass of the dynamic balance imbalance of the rotor according to the vibration state, wherein the method specifically comprises the following steps: determining a vibration end of the rotor, the vibration value of which is greater than a preset vibration threshold value, and a vibration amplitude corresponding to the vibration end according to the vibration value signal corresponding to the vibration state; determining the phase and the mass of the dynamic balance imbalance of the rotor according to the vibration end and the vibration amplitude;
according to the phase and the mass, sending an online dynamic balance adjusting instruction to a dynamic balance device configured in advance on the rotor, so as to realize online dynamic balance of the rotor by adjusting a balance weight in the dynamic balance device, specifically comprising: according to the phase and the mass, transmitting a control signal and driving energy corresponding to an online dynamic balance adjusting instruction to a receiver corresponding to a dynamic balance device configured in advance on the rotor through a transmitter on a stator of the centrifugal compressor, so that the dynamic balance device drives a balance weight in the dynamic balance device by using the driving energy received by the receiver according to the control signal received by the receiver to realize online dynamic balance of the rotor;
wherein, through adjusting the counter weight balancing piece among the dynamic balance device, realize online dynamic balance of rotor specifically includes: the shape of a balance weight in the dynamic balancing device is changed, and the position of the balance weight is changed in a matching mode, so that the eccentric mass of the rotor is balanced, and the online dynamic balancing of the rotor is realized, wherein the rotor has different mass balancing effects due to the fact that the balance weight is different in shape and different in position.
2. The method according to claim 1, wherein the preset vibration alarm condition is that the distance parameter is greater than a preset distance threshold, and if the distance parameter is greater than the preset distance threshold, the method further comprises:
and outputting alarm information, wherein the alarm information is used for prompting that the dynamic balance of the rotor is damaged.
3. A rotor dynamic balance adjustment device of a centrifugal compressor, characterized by comprising:
the monitoring unit is used for monitoring the vibration state of a rotor of the centrifugal compressor in real time in the running process of the centrifugal compressor unit, and specifically comprises the following steps: acquiring distance parameters between a probe arranged on a stator of a centrifugal compressor and an excircle of a rotor of the centrifugal compressor in real time; determining the vibration state of the centrifugal compressor rotor according to the distance parameter;
the acquiring unit is configured to acquire the phase and the mass of the dynamic balance imbalance of the rotor according to the vibration state monitored by the monitoring unit if the vibration state meets a preset vibration alarm condition, and specifically includes: determining a vibration end of the rotor, the vibration value of which is greater than a preset vibration threshold value, and a vibration amplitude corresponding to the vibration end according to the vibration value signal corresponding to the vibration state; determining the phase and the mass of the dynamic balance imbalance of the rotor according to the vibration end and the vibration amplitude;
a sending unit, configured to send an online dynamic balance adjustment instruction to a dynamic balance device preconfigured on the rotor according to the phase and the mass acquired by the acquiring unit, so as to implement online dynamic balance of the rotor by adjusting a counterweight balance block in the dynamic balance device, specifically including: according to the phase and the mass, transmitting a control signal and driving energy corresponding to an online dynamic balance adjusting instruction to a receiver corresponding to a dynamic balance device configured in advance on the rotor through a transmitter on a stator of the centrifugal compressor, so that the dynamic balance device drives a balance weight in the dynamic balance device by using the driving energy received by the receiver according to the control signal received by the receiver to realize online dynamic balance of the rotor;
wherein, through adjusting the counter weight balancing piece among the dynamic balance device, realize online dynamic balance of rotor specifically includes: the shape of a balance weight in the dynamic balancing device is changed, and the position of the balance weight is changed in a matching mode, so that the eccentric mass of the rotor is balanced, and the online dynamic balancing of the rotor is realized, wherein the rotor has different mass balancing effects due to the fact that the balance weight is different in shape and different in position.
4. A storage device on which a computer program is stored, characterized in that said program, when executed by a processor, implements the rotor dynamic balance adjustment method of a centrifugal compressor according to any one of claims 1 to 2.
5. A dynamic rotor balance adjustment apparatus for a centrifugal compressor, comprising a storage device, a processor, and a computer program stored on the storage device and executable on the processor, wherein the processor implements the dynamic rotor balance adjustment method for a centrifugal compressor according to any one of claims 1 to 2 when executing the program.
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| CN108910079B (en) * | 2018-06-26 | 2020-07-17 | 中国直升机设计研究所 | Rotor wing test bed dynamic balance adjustment phase identification method |
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| US2882745A (en) * | 1955-06-09 | 1959-04-21 | Norton Co | Automatic balancing mechanism for rotating elements |
| CN101587004B (en) * | 2009-06-16 | 2011-06-01 | 西安交通大学 | Online automatic balance executing device of rotor of machine rotating at high speed |
| RU2498253C1 (en) * | 2012-06-07 | 2013-11-10 | Геннадий Алексеевич Копылов | Device for automatic balancing of rotation bodies |
| CN102890477B (en) * | 2012-09-26 | 2014-11-05 | 西安交通大学 | On-line active dynamic balance measurement and control device and on-line active dynamic balance measurement and control method |
| CN103115724B (en) * | 2013-01-29 | 2015-05-20 | 深圳大学 | Online dynamic balance compensation device and method for high-speed motorized spindles |
| CN103955576B (en) * | 2014-04-24 | 2017-03-08 | 湖北理工学院 | A kind of method and device of lathe chuck dynamic balance weight |
| CN106033018B (en) * | 2015-03-19 | 2018-09-25 | 上海旗升电气股份有限公司 | A kind of system of spot dynamic balance method and realization this method without trying add weight |
| CN104977124B (en) * | 2015-07-06 | 2017-12-12 | 沈阳申克动力机械有限公司 | Complete dynamic balancing shaft coupling |
| CN106168325A (en) * | 2016-08-15 | 2016-11-30 | 苏州市华宁机械制造有限公司 | The adjustable liquid crystal display television installing frame of a kind of height |
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