CN110067767A - A kind of method and device of Systems of Centrifugal Compressor Unit status monitoring - Google Patents
A kind of method and device of Systems of Centrifugal Compressor Unit status monitoring Download PDFInfo
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- CN110067767A CN110067767A CN201910341170.9A CN201910341170A CN110067767A CN 110067767 A CN110067767 A CN 110067767A CN 201910341170 A CN201910341170 A CN 201910341170A CN 110067767 A CN110067767 A CN 110067767A
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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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
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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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Abstract
The problem of this application discloses a kind of method and devices of Systems of Centrifugal Compressor Unit status monitoring, are related to centrifugal compressor technical group field, can solve when carrying out status monitoring to Systems of Centrifugal Compressor Unit, and valid data screening difficulty is big, can not carry out specific aim monitoring.Wherein method includes: the working stage that Systems of Centrifugal Compressor Unit is divided according to the prime mover type of Systems of Centrifugal Compressor Unit；The corresponding sampling period is configured for each working stage；Condition Monitoring Data of the Systems of Centrifugal Compressor Unit in each working stage is recorded using the sampling period, so that realizing the status monitoring to the Systems of Centrifugal Compressor Unit.This method is suitable for the monitoring to Systems of Centrifugal Compressor Unit state.
Description
Technical field
This application involves centrifugal compressor technical group field more particularly to a kind of sides of Systems of Centrifugal Compressor Unit status monitoring
Method and device.
Background technique
Systems of Centrifugal Compressor Unit generally includes prime mover, driver and centrifugal compressor, and status monitoring signal includes bearing
Temperature signal, bearing vibration signal (including a frequency-doubled signal and two frequency-doubled signals), bearing displacement signal and unit key signal
Deng to sum up all signals may be collectively referred to as the shafting signal of Systems of Centrifugal Compressor Unit.When Systems of Centrifugal Compressor Unit operation or start and stop, make
It to be recorded at any time for the condition monitoring system of Systems of Centrifugal Compressor Unit, to carry out diagnosis and state analysis to unit.
The method of traditional Systems of Centrifugal Compressor Unit monitoring data be by certain sampling period it is universal record it is all
The status monitoring signal of Systems of Centrifugal Compressor Unit.
However this method using a sampling period monitoring Systems of Centrifugal Compressor Unit whole operational process, if setting is adopted
The sample period is smaller, although the data monitored are detailed, also virtually increase the difficulty for screening valid data, can not accomplish
Screening when accident occurs to valid data, and also increase systematic sampling load；If the setting sampling period is larger, although
Systematic sampling load is reduced, but not can guarantee when accident occurs can monitor whole valid data, can not carry out needle
To property detection.
Summary of the invention
In view of this, this application provides a kind of method and device of Systems of Centrifugal Compressor Unit status monitoring, main purpose exists
In solution when carrying out status monitoring to Systems of Centrifugal Compressor Unit, valid data screening difficulty is big, can not carry out specific aim monitoring
Problem.
According to the one aspect of the application, a kind of method of Systems of Centrifugal Compressor Unit status monitoring is provided, this method comprises:
The working stage of Systems of Centrifugal Compressor Unit is divided according to the prime mover type of Systems of Centrifugal Compressor Unit；
The corresponding sampling period is configured for each working stage；
Status monitoring number of the Systems of Centrifugal Compressor Unit in each working stage is recorded using the sampling period
According to carry out status monitoring to the Systems of Centrifugal Compressor Unit.
According to further aspect of the application, a kind of device of Systems of Centrifugal Compressor Unit status monitoring is provided, the device packet
It includes:
Division module divides the working stage of Systems of Centrifugal Compressor Unit for the prime mover type according to Systems of Centrifugal Compressor Unit；
Configuration module, for configuring the corresponding sampling period for each working stage；
Logging modle, for recording the Systems of Centrifugal Compressor Unit in each working stage using the sampling period
Condition Monitoring Data, so as to the Systems of Centrifugal Compressor Unit carry out status monitoring.
According to the another aspect of the application, a kind of non-volatile readable storage medium is provided, calculating is stored thereon with
Machine program realizes the method for above-mentioned Systems of Centrifugal Compressor Unit status monitoring when described program is executed by processor.
According to another aspect of the application, a kind of computer equipment is provided, including non-volatile readable storage medium,
Processor and it is stored in the computer program that can be run on non-volatile readable storage medium and on a processor, the processor
The method for realizing above-mentioned Systems of Centrifugal Compressor Unit status monitoring when executing described program.
By above-mentioned technical proposal, the method and device of Systems of Centrifugal Compressor Unit status monitoring provided by the present application is and current
It is compared by way of the status monitoring signal for recording all Systems of Centrifugal Compressor Unit of certain sampling period generally, the application
Can the analysis centrifugal compressor set working condition that is included in real time, the different works of Systems of Centrifugal Compressor Unit are divided according to prime mover type
Make the stage, configures the different sampling periods for the different operating stage, record the Systems of Centrifugal Compressor Unit each using the sampling period
Condition Monitoring Data in a working stage, to realize the monitoring to Systems of Centrifugal Compressor Unit state.So as to targeted
The record to valid data is completed, the difficulty for screening valid data is reduced, carries out fault diagnosis and state analysis for engineer
More effective, more reliable, more detailed data is provided to support.
Above description is only the general introduction of technical scheme, in order to better understand the technological means of the application,
And it can be implemented in accordance with the contents of the specification, and in order to which the above and other objects, features and advantages of the application can be more
It becomes apparent, below the special specific embodiment for lifting the application.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please do not constitute the improper restriction to locally applying for explaining the application.In the accompanying drawings:
Fig. 1 shows a kind of process signal of the method for Systems of Centrifugal Compressor Unit status monitoring provided by the embodiments of the present application
Figure；
Fig. 2 shows the process signals of the method for another Systems of Centrifugal Compressor Unit status monitoring provided by the embodiments of the present application
Figure；
Fig. 3 shows a kind of structural representation of the device of Systems of Centrifugal Compressor Unit status monitoring provided by the embodiments of the present application
Figure；
Fig. 4 shows the structural representation of the device of another Systems of Centrifugal Compressor Unit status monitoring provided by the embodiments of the present application
Figure.
Specific embodiment
The application is described in detail hereinafter with reference to attached drawing and in conjunction with the embodiments.It should be noted that in the feelings not conflicted
Under condition, the features in the embodiments and the embodiments of the present application can be combined with each other.
For when carrying out status monitoring to Systems of Centrifugal Compressor Unit, valid data screening difficulty is big at present, needle can not be carried out
The problem of to property monitoring, a kind of method for present embodiments providing Systems of Centrifugal Compressor Unit status monitoring, as shown in Figure 1, this method
Include:
101, the working stage of Systems of Centrifugal Compressor Unit is divided according to the prime mover type of Systems of Centrifugal Compressor Unit.
For the present embodiment, in specific application scenarios, the monitoring running state of Systems of Centrifugal Compressor Unit is generally divided into three
A process as opens machine process, operational process and stopping process etc..Wherein, different prime mover types is corresponding opens machine process
It is different with stopping process, and then the working stage that will lead to the Systems of Centrifugal Compressor Unit of division has differences.
It can be the server for recording Systems of Centrifugal Compressor Unit Condition Monitoring Data for the executing subject of the present embodiment, it can
The Condition Monitoring Data under the different operating stage is obtained using the sampling period, data is provided for state analysis and supports.
102, the corresponding sampling period is configured for each working stage.
For the present embodiment, in specific application scenarios, the sampling period in each stage can do according to actual needs
Corresponding setting, wherein it is more detailed that the sampling period sets the smaller Condition Monitoring Data for representing record.It such as can be according to different operating
The significance level of monitoring data corresponding to working attributes and different operating stage under stage, to need to carry out status monitoring
Working stage be pre-configured with the corresponding sampling period, and the working stage for not needing to carry out status monitoring can also be carried out
Delete or be not provided with the sampling period.To realize the Condition Monitoring Data of targetedly record Systems of Centrifugal Compressor Unit.
103, the Condition Monitoring Data using sampling period record Systems of Centrifugal Compressor Unit in each working stage, so as to right
Systems of Centrifugal Compressor Unit carries out status monitoring.
For example, if the red switch that the currently running working stage of analysis centrifugal compressor set is prime mover type when being steam turbine
Stage can then obtain the preconfigured sampling period in red switch stage, be centrifuged when being realized using the sampling period to the red switch stage
The monitoring of compressor set state.
The method of Systems of Centrifugal Compressor Unit status monitoring provided in this embodiment can divide in real time compared with currently available technology
The working condition that analysis Systems of Centrifugal Compressor Unit is included, the different operating stage of Systems of Centrifugal Compressor Unit is divided according to prime mover type,
The different sampling periods is configured for the different operating stage, using sampling period record Systems of Centrifugal Compressor Unit in each working stage
Condition Monitoring Data, to realize monitoring to Systems of Centrifugal Compressor Unit state.So as to targetedly complete to significant figure
According to record, when there are emergency situations, convenient for finding related data, reduce screen valid data difficulty, be
Engineer carries out fault diagnosis and state analysis provides more effective, more reliable, more detailed data and supports.
Further, as the refinement and extension of above-described embodiment specific embodiment, in order to illustrate above-described embodiment
Specific implementation process, the method for present embodiments providing another Systems of Centrifugal Compressor Unit status monitoring, as shown in Fig. 2, this method
Include:
201, the working stage of Systems of Centrifugal Compressor Unit is divided according to the prime mover type of Systems of Centrifugal Compressor Unit.
Step 201 can specifically include as a preferred method: if prime mover type is steam turbine, divide work
Stage be the red switch stage, warm-up period, boost phase, cross critical stage, further accelerate the stage, into the running speed area stage, fortune
Row order section, scram stage or orderly shutdown stage, wherein the orderly shutdown stage includes falling-rate period, crosses critical stage, again
Falling-rate period, steady-state process, shutdown phase；
If step 201 specifically can also include: prime mover type for variable-frequency motor or with fluid power as a preferred method,
Coupling device is transmission device, then divides working stage and be the red switch stage, steady-state process, boost phase, cross critical stage, further accelerate
Stage, into running speed area stage, operation phase, scram stage or orderly shutdown stage, wherein the orderly shutdown stage
Including falling-rate period, cross critical stage, again falling-rate period, steady-state process, shutdown phase；
If it is permanent revolving speed motor that step 201, which specifically can also include prime mover type, as a preferred method, divide
Working stage be the red switch stage, boost phase, cross critical stage, further accelerate the stage, into the work perseverance revolving speed stage, operation rank
Section, scram stage or orderly shutdown stage, wherein the orderly shutdown stage includes falling-rate period, crosses critical stage, again reduction of speed
Stage, shutdown phase.
Application example scene of the three of the above prime mover type as this programme, but above-mentioned three kinds of situations are not limited to,
The case where may also include other prime mover of multiple choices, herein without enumerating.Wherein, prime mover characteristic of selection is different, draws
There is also differences for the working stage for the Systems of Centrifugal Compressor Unit divided.
It 202a, is respectively that each working stage configures the independent sampling period.
Wherein, the sampling period is the time interval for recording status monitoring data, each independent for the present embodiment
Sampling period can be set previously according to actual conditions, and the sampling period of setting is smaller, represent the status monitoring number monitored
According to more detailed；To which systematic sampling load can also be reduced by setting the biggish sampling period for a certain working stage.
For example, the working stage of division is the red switch stage, warms up by Systems of Centrifugal Compressor Unit for when steam turbine is prime mover
Machine stage, boost phase cross critical stage, further accelerate the stage, into running speed area stage, operation phase, scram rank
Section, crosses critical stage, again falling-rate period, steady-state process, shutdown phase at falling-rate period.Shape then is being carried out to Systems of Centrifugal Compressor Unit
It before state monitoring, needs in advance to be respectively that above-mentioned each working stage configures the independent sampling period, the size in sampling period can be by
User is customized or directly sets according to the default value in sampling period.
With step 202a step 202b arranged side by side, be respectively that unlike signal attribute configuration is independent adopts in each working stage
The sample period.
Wherein, signal attribute includes bearing temperature signal, bearing vibration signal, and bearing displacement signal and unit key are believed
Number, bearing vibration signal includes a frequency-doubled signal and two frequency-doubled signals.
For example, the example based on step 202a, by Systems of Centrifugal Compressor Unit for when steam turbine is prime mover, to centrifugation
Compressor set carry out status monitoring before, need in advance be respectively each working stage middle (center) bearing temperature signal, bearing vibration signal,
One frequency-doubled signal of bear vibration and two frequency-doubled signals, bearing displacement signal and unit key signal configure the independent sampling period,
The size in sampling period can be customized by users or directly be set according to the default value in sampling period.
For the present embodiment, in specific application scenarios, in order to realize the Condition Monitoring Data to Systems of Centrifugal Compressor Unit
Specific aim record and reduce the workload of data monitoring, can also be filtered out in advance from multiple working stages and need to carry out shape
The target operation stage of state monitoring is each target work to filter out some working stages having little significance for data monitoring
Making the stage configures corresponding sampling period, to carry out status monitoring, the sampling period can refer to above two mode, i.e., according to from
The heart compressor set different operating stage, with Different sampling period or the status monitoring of different sampling interval record Systems of Centrifugal Compressor Unit
Data；Systems of Centrifugal Compressor Unit Condition Monitoring Data can also be set according to the signal attribute of Systems of Centrifugal Compressor Unit different monitoring points
Different sampling period.It can be achieved to record the specific aim of Condition Monitoring Data in this way, and be engineer's fault diagnosis and shape
State analysis provides more effective, more reliable, more detailed data and supports.
In specific application scenarios, as a preferred method, due to Systems of Centrifugal Compressor Unit use permanent revolving speed motor for
When prime mover, opens machine and the orderly closedown time is shorter, in order to avoid the frequent transitions in sampling period, therefore in addition to above two sampling
Outside the configuration method in period, a kind of preferred embodiment applied under special scenes is also provided, comprising: if it is determined that prime mover type is
Permanent revolving speed motor, then by the red switch stage for including during the machine that opens, boost phase, cross critical stage, further accelerate the stage, into work
The work permanent revolving speed stage was uniformly configured to for the first default sampling period；If it is determined that prime mover type is permanent revolving speed motor, then it will be normal
The falling-rate period that includes in shutdown phase crosses that critical stage, falling-rate period, shutdown phase are uniformly configured to the second default sampling again
Period.
Wherein, the numerical values recited in the first default sampling period and the second default sampling period can carry out certainly according to the actual situation
Definition.
By it is above-mentioned be applied to open machine and shorter orderly closedown time interval when, to the specific configuration scene in sampling period,
It may respectively be the configuration same sampling period in different operating stage occurred during opening machine process and orderly closedown, to effectively keep away
Exempt from the frequent transitions in sampling period, improves working efficiency.
Sampling period in 203a, each working stage determined using time difference Δ T records the shape of Systems of Centrifugal Compressor Unit
State monitoring data.
It, can be by configuring multiple independent time difference Δ T as the sampling period, in same working stage for the present embodiment
It is possible that only including an independent sampling period, it may also include multiple independent sampling weeks according to unlike signal Attribute transposition
Phase constantly dynamically replaces corresponding time difference Δ T and believe status monitoring with the conversion between working stage or signal attribute
Number sampling and record.It, can be corresponding according to the working stage when determining the currently running working stage of Systems of Centrifugal Compressor Unit
The time difference Δ T of configuration carrys out the Condition Monitoring Data of monitoring record Systems of Centrifugal Compressor Unit.
For example, setting in same working stage by Systems of Centrifugal Compressor Unit by taking steam turbine is prime mover as an example only comprising one
When the independent sampling period, the different phase setting time as Systems of Centrifugal Compressor Unit opens machine process is respectively as follows: 3 points of red switch setting
Clock, warming-up set 120 minutes, accelerate setting 5 minutes, excessively critical setting 1 minute, further accelerate setting 4 minutes after enter operation and turn
Fast area.It clocks from zero, at 0 to 3 minutes, shafting signal sampling period can be set as T=100 milliseconds of Δ；3 minutes to 123 points
The shafting signal sampling period of Zhong Shi, Systems of Centrifugal Compressor Unit can be set as Δ T=10 seconds；At 123 minutes to 128 minutes, from
The shafting signal sampling period of heart compressor set can be set as Δ T=1 seconds；At 128 minutes to 129 minutes, centrifugal compressor
The shafting signal sampling period of group can be set as T=100 milliseconds of Δ；At 129 minutes to 133 minutes, Systems of Centrifugal Compressor Unit
Shafting signal sampling period can be set as Δ T=1 seconds.Systems of Centrifugal Compressor Unit in the process of running, the axis of Systems of Centrifugal Compressor Unit
It is that signal sampling period can be set as Δ T=1 seconds, it specifically will be depending on operational circumstances.Systems of Centrifugal Compressor Unit is in stopping process
When for scram, if setting the Systems of Centrifugal Compressor Unit scram time as 5 minutes, the status monitoring number of Systems of Centrifugal Compressor Unit
It clocks when can be set as scram according to record from zero, at 0 to 5 minutes, the shafting signal sampling period of Systems of Centrifugal Compressor Unit
It can be set as T=100 milliseconds of Δ.If Systems of Centrifugal Compressor Unit is orderly shutdown in stopping process, Systems of Centrifugal Compressor Unit is shut down
The different phase setting time of process be respectively as follows: reduction of speed set 4 minutes, excessively critical setting 1 minute, again reduction of speed set 5 minutes, it is steady
State sets 3 minutes, parking 2 minutes states of setting.The Condition Monitoring Data record of Systems of Centrifugal Compressor Unit can be set as normally stopping
Che Shicong zero clocks, and at 0 to 4 minutes, Systems of Centrifugal Compressor Unit shafting signal sampling period can be set as Δ T=1 seconds；4 minutes
When by 5 minutes, the shafting signal sampling period of Systems of Centrifugal Compressor Unit can be set as T=100 milliseconds of Δ；5 minutes to 10 minutes
When, the shafting signal sampling period of Systems of Centrifugal Compressor Unit can be set as Δ T=1 seconds；At 10 minutes to 13 minutes, centrifugal compressed
The shafting signal sampling period of unit can be set as Δ T=10 seconds；At 13 minutes to 15 minutes, the shafting of Systems of Centrifugal Compressor Unit
Signal sampling period can be set as Δ T=1 seconds.
For another example using Systems of Centrifugal Compressor Unit using steam turbine as prime mover, time difference Δ T as the sampling period when rush
For turning the stage, when setting Systems of Centrifugal Compressor Unit Condition Monitoring Data according to the attribute of Systems of Centrifugal Compressor Unit different monitoring points
When Different sampling period, such as 0 to 3 minutes are the red switch stage, and Systems of Centrifugal Compressor Unit bearing temperature signal sampling period can be set
It is Δ T=1 seconds, Systems of Centrifugal Compressor Unit bearing vibration signal (including a frequency-doubled signal and two frequency-doubled signals) sampling period can set
It is set to T=100 milliseconds of Δ, the Systems of Centrifugal Compressor Unit bearing displacement signal sampling period can be set as T=100 milliseconds of Δ, centrifugation
The compressor set unit key signal sampling period can be set as T=100 milliseconds of Δ.
With step 203a step 203b arranged side by side, utilize rotation speed difference deltan RPM determine each working stage in sampling week
The Condition Monitoring Data of phase record Systems of Centrifugal Compressor Unit.
It, can be by configuring multiple independent rotation speed difference deltan RPM as sampling period, same working stage for the present embodiment
It is interior to be possible to only include an independent sampling period, it may also include multiple independent samplings according to unlike signal Attribute transposition
Period constantly dynamically replaces corresponding rotation speed difference deltan RPM and supervise to state with the conversion between working stage or signal attribute
Survey sampling and the record of signal.It, can be according to the working stage when determining the currently running working stage of Systems of Centrifugal Compressor Unit
The rotation speed difference deltan RPM of corresponding configuration carrys out the Condition Monitoring Data of monitoring record Systems of Centrifugal Compressor Unit.
For example, being prime mover or for when fluid-flywheel clutch is transmission device by variable-frequency motor, same work is set
When in the stage only including an independent sampling period, if Systems of Centrifugal Compressor Unit opens the different phase setting speed difference of machine process
Are as follows: red switch phase sets 0RPM to 200RPM, steady-state process set 1000RPM, boost phase sets 1000RPM to 3000RPM,
Into running speed area after crossing critical stage setting 3000RPM to 5000RPM, further accelerating phase sets 5000RPM to 7000RPM
For 7000RPM to 11000RPM.The sampling interval in red switch stage may be set to Δ RPM=1；The sampling interval of steady-state process can set
It is set to Δ RPM=2；The sampling interval of boost phase may be set to Δ RPM=4；The sampling interval for crossing critical stage may be set to
Δ RPM=10；The sampling interval for further accelerating the stage may be set to Δ RPM=4.Systems of Centrifugal Compressor Unit in the process of running, can divide
For Systems of Centrifugal Compressor Unit revolving speed below rated speed and Systems of Centrifugal Compressor Unit revolving speed more than rated speed.7000RPM is arrived
When 10000RPM, be Systems of Centrifugal Compressor Unit revolving speed in rated speed (10000RPM) hereinafter, can be set as Δ RPM=the sampling interval
When 5,10000RPM to 11000RPM, it is Systems of Centrifugal Compressor Unit revolving speed more than rated speed (10000RPM), sampling can be set
Between be divided into Δ RPM=2, Systems of Centrifugal Compressor Unit when stopping process is orderly shutdown, process be divided into reduction of speed, it is excessively critical, again reduction of speed,
The different phase setting time in the stages such as stable state, parking, different Systems of Centrifugal Compressor Unit orderly closedown processes is also different, such as reduction of speed
Phase sets are 7000RPM to 5000RPM, mistake critical stage is set as that 5000RPM to 3000RPM, falling-rate period is set as again
3000RPM to 1000RPM, steady-state process are set as 1000RPM, shutdown phase is set as setting 200RPM to 0RPM, reduction of speed rank
The sampling interval of section may be set to Δ RPM=10；The sampling interval for crossing critical stage may be set to Δ RPM=20；Reduction of speed rank again
The sampling interval of section may be set to Δ RPM=10；The sampling interval of steady-state process may be set to Δ RPM=10；Shutdown phase
Sampling interval may be set to Δ RPM=10.
For another example when by prime mover of variable-frequency motor or using fluid-flywheel clutch as transmission device, rotation speed difference deltan RPM as
For start-up course when the sampling period, when setting Systems of Centrifugal Compressor Unit according to the attribute of Systems of Centrifugal Compressor Unit different monitoring points
When the Different sampling period of Condition Monitoring Data, at 0RPM to the 200RPM red switch stage, Systems of Centrifugal Compressor Unit bearing temperature letter
Number sampling interval can be set as Δ RPM=5, Systems of Centrifugal Compressor Unit bearing vibration signal (including a frequency-doubled signal and two frequencys multiplication
Signal) sampling interval can be set as Δ RPM=1, and the Systems of Centrifugal Compressor Unit bearing displacement signal sampling interval can be set as Δ
RPM=1, Systems of Centrifugal Compressor Unit unit key signal sampling interval can be set as Δ RPM=1；200RPM to 1000RPM stable state
When the stage, Systems of Centrifugal Compressor Unit bearing temperature signal sampling interval can be set as Δ RPM=10, the vibration of Systems of Centrifugal Compressor Unit bearing
Dynamic signal (including a frequency-doubled signal and two frequency-doubled signals) sampling interval can be set as Δ RPM=5, Systems of Centrifugal Compressor Unit bearing
The displacement signal sampling interval can be set as Δ RPM=5, and the Systems of Centrifugal Compressor Unit unit key signal sampling interval can be set as
Δ RPM=5；When 1000RPM to 3000RPM boost phase, Systems of Centrifugal Compressor Unit bearing temperature signal sampling interval can be set
For Δ RPM=10, Systems of Centrifugal Compressor Unit bearing vibration signal (including a frequency-doubled signal and two frequency-doubled signals) sampling interval can be with
It is set as Δ RPM=5, the Systems of Centrifugal Compressor Unit bearing displacement signal sampling interval can be set as Δ RPM=5, centrifugal compressor
The group unit key signal sampling interval can be set as Δ RPM=5；When 3000RPM to 5000RPM crosses critical stage, centrifugation pressure
Contracting unit bearing temperature signal sampling interval can be set as Δ RPM=40, Systems of Centrifugal Compressor Unit bearing vibration signal (including one
Frequency-doubled signal and two frequency-doubled signals) sampling interval can be set as Δ RPM=10, the sampling of Systems of Centrifugal Compressor Unit bearing displacement signal
Interval can be set as Δ RPM=10, and the Systems of Centrifugal Compressor Unit unit key signal sampling interval can be set as Δ RPM=10；
When 5000RPM to 7000RPM further accelerates the stage, Systems of Centrifugal Compressor Unit bearing temperature signal sampling interval can be set as Δ RPM
=10, Systems of Centrifugal Compressor Unit bearing vibration signal (including a frequency-doubled signal and two frequency-doubled signals) sampling interval can be set as Δ
RPM=5, Systems of Centrifugal Compressor Unit bearing displacement signal sampling interval can be set as Δ RPM=5, Systems of Centrifugal Compressor Unit unit key
The phase signals sampling interval can be set as Δ RPM=5.
Step 203c arranged side by side, each work determined using time difference Δ T and/or rotation speed difference deltan RPM with step 203a
The Condition Monitoring Data of sampling period record Systems of Centrifugal Compressor Unit in stage.
In specific application scenarios, the requirement of accuracy can be met in order to make data monitoring more, as a kind of preferred side
Formula, step 203c are specific can include: the current working phase of real-time analysis centrifugal compressor set operation；If it is determined that work at present rank
Section is warm-up period or steady-state process, then determines the sampling period in current working phase using time difference Δ T；If it is determined that current
Working stage is the operation phase and prime mover type is steam turbine or variable-frequency motor or when using fluid-flywheel clutch as transmission device, then
The sampling period in current working phase is determined using rotation speed difference deltan RPM；If it is determined that current working phase is operation phase and original
When motivation type is permanent revolving speed motor, then the sampling period in current working phase is determined using time difference Δ T；If it is determined that current
When the non-warm-up period of working stage, unstable state stage and inoperative stage, then determined using time difference Δ T or rotation speed difference deltan RPM
Sampling period in current working phase.
For the present embodiment, in specific application scenarios, the currently running work of real-time monitoring Systems of Centrifugal Compressor Unit is needed
Make the stage, and then realize the adjustment and conversion to the sampling period, so as to obtain Condition Monitoring Data according to preset sample frequency
Sample record.
In specific application scenarios, the method for the real-time currently running working stage of analysis centrifugal compressor set can divide
For two kinds of analysis modes:
The first analysis mode can determine that Systems of Centrifugal Compressor Unit is currently run according to the time interval that different phase is arranged
Working stage.For example, by taking orderly closedown process as an example, when Systems of Centrifugal Compressor Unit using variable-frequency motor as prime mover or with fluid power
Coupling device is Flexible Transmission machine, is used as when the sampling period using the time difference, and different operating stage corresponding time interval is set are as follows:
It was critical stage, 3 minutes to 5 minutes Shi Weizai falling-rate periods, 5 when being falling-rate period, 2 minutes to 3 minutes at 0 to 2 minutes
It is shutdown phase when being steady-state process, 7 minutes to 8 minutes when minute by 7 minutes.If it is determined that Systems of Centrifugal Compressor Unit was currently at
Timing node is 6 minutes, then can determine that out that the currently running working stage of Systems of Centrifugal Compressor Unit is steady-state process.
Second of analysis mode can determine that Systems of Centrifugal Compressor Unit is currently run according to the revolving speed section that different phase is arranged
Working stage.For example, equally by taking orderly closedown process as an example, when Systems of Centrifugal Compressor Unit using variable-frequency motor as prime mover or with
Fluid-flywheel clutch is Flexible Transmission machine, is used as when the sampling period using rotational speed difference, and different operating stage corresponding revolving speed area is set
Between are as follows: it was that critical stage, 3000RPM are arrived when being falling-rate period, 5000RPM to 3000RPM when 7000RPM to 5000RPM
It is shutdown phase when being steady-state process, 200RPM to 0RPM when 1000RPM Shi Weizai falling-rate period, 1000RPM.If it is determined that centrifugation
The revolving speed that compressor set is currently at is 2000RPM, then can determine that out that the currently running working stage of Systems of Centrifugal Compressor Unit is again
Falling-rate period.
Correspondingly, in order to determine that rotation speed difference deltan RPM as the sampling period, provides a kind of sampling week according to working stage
The calculation formula of phase:Wherein, SmaxFor tachometer value the biggest, SminFor minimum speed value, K is
Adjustment factor, TrampFor speed up time, NtdiFor the tricks of Systems of Centrifugal Compressor Unit.It is public if considered by a set of Systems of Centrifugal Compressor Unit
Formula can simplify are as follows:By upper formula it is found that K is in as adjustment factor in Systems of Centrifugal Compressor Unit
When the different operating stage, different K and T can be set according to demandramp, and then generate different rotation speed difference deltan RPM conducts and adopt
Sample interval.
For example, using steam turbine be prime mover, rotation speed difference deltan RPM is as the sampling period when start-up course for, 0RPM is arrived
When the red switch stage of 200RPM, it can be obtained according to formulaAs shafting signal sampling interval, TrampIt can be with
It is set as 30 seconds, K is set as 170, then the sampling interval of Systems of Centrifugal Compressor Unit shafting signal is Δ RPM=1, i.e. centrifugal compressor
Group revolving speed it is every variation 1 when, Systems of Centrifugal Compressor Unit shafting signal monitoring data record is primary；The warming-up rank of 200RPM to 1000RPM
Duan Shi can be obtained according to formulaAs shafting signal sampling interval, TrampIt can be set as 160 seconds, K
It is set as 240, then the sampling interval of Systems of Centrifugal Compressor Unit shafting signal is Δ RPM=2, the i.e. every variation of Systems of Centrifugal Compressor Unit revolving speed
When 2, Systems of Centrifugal Compressor Unit shafting signal monitoring data record is primary；When the boost phase of 1000RPM to 3000RPM, according to public affairs
Shi Ke getAs shafting signal sampling interval, TrampIt can be set as 400 seconds, K is set as 100, then
The sampling interval of Systems of Centrifugal Compressor Unit shafting signal be Δ RPM=4, i.e., Systems of Centrifugal Compressor Unit revolving speed it is every variation 4 when, centrifugal compressed
Shaft system of unit signal monitoring data record is primary；When the mistake critical stage of 3000RPM to 5000RPM, it can be obtained according to formulaAs shafting signal sampling interval, TrampIt can be set as 50 seconds, K is set as 150, then is centrifuged pressure
The sampling interval of contracting shaft system of unit signal be Δ RPM=10, i.e., Systems of Centrifugal Compressor Unit revolving speed it is every variation 10 when, Systems of Centrifugal Compressor Unit
Shafting signal monitoring data record is primary；When further accelerating the stage of 5000RPM to 7000RPM can obtain according to formulaAs shafting signal sampling interval, TrampIt can be set as 400 seconds, K is set as 100, then is centrifuged pressure
The sampling interval of contracting shaft system of unit signal be Δ RPM=4, i.e., Systems of Centrifugal Compressor Unit revolving speed it is every variation 4 when, Systems of Centrifugal Compressor Unit axis
It is that signal monitoring data record is primary.
By the method for above-mentioned Systems of Centrifugal Compressor Unit status monitoring, can according to the prime mover type in Systems of Centrifugal Compressor Unit,
Determine all working stage that Systems of Centrifugal Compressor Unit includes, wherein working stage include operation phase and start-up course and
The multiple working stages respectively included in stopping process determine the sampling period, wherein same respectively in each working stage
In working stage, the sampling period is settable identical, can also be set in same working stage according to the signal attribute of different monitoring points
The fixed different sampling period；In view of special circumstances, when Systems of Centrifugal Compressor Unit is using permanent revolving speed motor as prime mover, due to starting
With the time multiple working stages that are shorter, therefore can also will including in start-up course and stopping process respectively undergone when orderly closedown
The identical sampling period is set.In the present solution, specifically the method in setting sampling period can are as follows: pass through time difference and/or revolving speed
Difference is determined.It is divided into three kinds of situations at this time, the first is to determine all sampling periods using time difference Δ T；The
Two kinds are that all sampling periods are determined using rotation speed difference deltan RPM；The third is to provide one kind in view of special circumstances
Preferred embodiment chooses optimal sampling from time difference Δ T and rotation speed difference deltan RPM respectively according to the characteristic of each working stage
Period method of determination, and determine specific sampling period numerical value for each working stage or each signal attribute, with realize to from
The monitoring of heart compressor set state.This programme carries out data monitoring by setting Different sampling period, emergency situations can occurring
When, convenient for finding related data, the difficulty for screening valid data is reduced, reduces the sampling load of system, makes to count
It is more targeted according to monitoring.
Further, the concrete embodiment as method shown in Fig. 1 and Fig. 2, the embodiment of the present application provide a kind of centrifugation pressure
The device of contracting set state monitoring, as shown in figure 3, the device includes: division module 31, configuration module 32, logging modle 33.
Division module 31 can be used for dividing the work rank of Systems of Centrifugal Compressor Unit according to the prime mover type of Systems of Centrifugal Compressor Unit
Section；
Configuration module 32 can be used for configuring the corresponding sampling period for each working stage；
Logging modle 33 can be used for supervising using state of the sampling period record Systems of Centrifugal Compressor Unit in each working stage
Measured data, to carry out status monitoring to Systems of Centrifugal Compressor Unit.
In specific application scenarios, in order to provide a kind of specific implementation of working stage for dividing Systems of Centrifugal Compressor Unit
Example, division module 31, if being particularly used in prime mover type is steam turbine, dividing working stage is red switch stage, warming-up rank
Section, boost phase, cross critical stage, further accelerate the stage, into the running speed area stage, the operation phase, the scram stage or
The orderly shutdown stage, wherein the orderly shutdown stage include falling-rate period, cross critical stage, again falling-rate period, steady-state process, stop
The vehicle stage；If prime mover type is variable-frequency motor or using fluid-flywheel clutch as transmission device, dividing working stage is red switch rank
Section, boost phase, crosses critical stage, further accelerates the stage, stops into running speed area stage, operation phase, failure steady-state process
Vehicle stage or orderly shutdown stage, wherein the orderly shutdown stage includes falling-rate period, crosses critical stage, again falling-rate period, stable state
Stage, shutdown phase；If prime mover type is permanent revolving speed motor, divides working stage and be red switch stage, boost phase, cross and face
Boundary's stage, the stage of further accelerating, into work perseverance revolving speed stage, operation phase, scram stage or orderly shutdown stage,
In, the orderly shutdown stage includes falling-rate period, crosses critical stage, again falling-rate period, shutdown phase.
Correspondingly, in order to configure the corresponding sampling period for each working stage, as shown in figure 4, configuration module 32, specifically
It can be used for respectively each working stage and configure the independent sampling period
Configuration module 32 specifically can also be used in the independent sampling of unlike signal attribute configuration in respectively each working stage
Period, wherein signal attribute includes bearing temperature signal, bearing vibration signal, bearing displacement signal and unit key signal, axis
Holding vibration signal includes a frequency-doubled signal and two frequency-doubled signals；
In specific application scenarios, in order to provide it is a kind of configure the sampling period preferred embodiment, configuration module 32, specifically
It can also be used in if it is determined that prime mover type is permanent revolving speed motor, then by the red switch stage for including during the machine that opens, boost phase, mistake
Critical stage further accelerates the stage, was uniformly configured to for the first default sampling period into the work perseverance revolving speed stage；If it is determined that prime mover
Type is permanent revolving speed motor, then by the falling-rate period for including in the orderly shutdown stage, excessively critical stage, again falling-rate period, parking
Stage was uniformly configured to for the second default sampling period.
Correspondingly, in order to realize utilize the sampling period record Systems of Centrifugal Compressor Unit Condition Monitoring Data, logging modle 33,
It is particularly used in the status monitoring of the sampling period record Systems of Centrifugal Compressor Unit in each working stage determined using the time difference
Data；Or the sampling period in each working stage determined using rotational speed difference records the status monitoring number of Systems of Centrifugal Compressor Unit
According to；Or the sampling period in each working stage determined using time difference and/or rotational speed difference records the shape of Systems of Centrifugal Compressor Unit
State monitoring data.
Correspondingly, in order to provide a kind of preferred embodiment of the Condition Monitoring Data of monitoring record Systems of Centrifugal Compressor Unit, record
Module 33, as shown in figure 4, specifically including: analytical unit 331, determination unit 332.
Analytical unit 331 is particularly used in the current working phase of real-time analysis centrifugal compressor set operation；
Determination unit 332 is particularly used in if it is determined that current working phase is warm-up period or steady-state process, then when utilizing
Between difference determine current working phase in sampling period；
Determination unit 332 specifically can also be used in if it is determined that current working phase is the operation phase and prime mover type is vapour
Turbine or variable-frequency motor or when using fluid-flywheel clutch as transmission device, then determine the sampling in current working phase using rotational speed difference
Period；
Determination unit 332 specifically can also be used in if it is determined that current working phase is the operation phase and prime mover type is permanent
When revolving speed motor, then the sampling period in current working phase is determined using the time difference；
Determination unit 332 specifically can also be used in if it is determined that the non-warm-up period of current working phase, unstable state stage and non-fortune
When row order section, then the sampling period in current working phase is determined using time difference or rotational speed difference.
In specific application scenarios, if using rotation speed difference deltan RPM as the sampling period, the calculation formula in sampling period
Are as follows:Wherein, SmaxFor tachometer value the biggest, SminFor minimum speed value, K is adjustment factor,
TrampFor speed up time, NtdiFor the tricks of Systems of Centrifugal Compressor Unit.
It should be noted that each function involved by a kind of device of Systems of Centrifugal Compressor Unit status monitoring provided in this embodiment
Other corresponding descriptions of unit, can be referring to figs. 1 to the corresponding description in Fig. 2, and details are not described herein.
Based on above-mentioned method as depicted in figs. 1 and 2, correspondingly, the embodiment of the present application also provides a kind of storage medium,
On be stored with computer program, which realizes above-mentioned Systems of Centrifugal Compressor Unit shape as depicted in figs. 1 and 2 when being executed by processor
The method of state monitoring.
Based on this understanding, the technical solution of the application can be embodied in the form of software products, which produces
Product can store in a non-volatile memory medium (can be CD-ROM, USB flash disk, mobile hard disk etc.), including some instructions
With so that computer equipment (can be personal computer, server or the network equipment an etc.) execution the application is each
The method of implement scene.
Based on above-mentioned method as shown in Figure 1 and Figure 2 and Fig. 3, virtual bench embodiment shown in Fig. 4, in order to realize
Above-mentioned purpose, the embodiment of the present application also provides a kind of computer equipments, are specifically as follows personal computer, server, network
Equipment etc., the entity device include storage medium and processor；Storage medium, for storing computer program；Processor is used for
Execute method of the computer program to realize above-mentioned Systems of Centrifugal Compressor Unit status monitoring as depicted in figs. 1 and 2.
Optionally, which can also include user interface, network interface, camera, radio frequency (Radio
Frequency, RF) circuit, sensor, voicefrequency circuit, WI-FI module etc..User interface may include display screen
(Display), input unit such as keyboard (Keyboard) etc., optional user interface can also connect including USB interface, card reader
Mouthful etc..Network interface optionally may include standard wireline interface and wireless interface (such as blue tooth interface, WI-FI interface).
It will be understood by those skilled in the art that computer equipment structure provided in this embodiment is not constituted and is set to the entity
Standby restriction may include more or fewer components, perhaps combine certain components or different component layouts.
It can also include operating system, network communication module in non-volatile readable storage medium.Operating system is management
The program of the entity device hardware and software resource of Systems of Centrifugal Compressor Unit status monitoring supports message handling program and other soft
The operation of part and/or program.Network communication module is for realizing logical between each component inside non-volatile readable storage medium
Letter, and communicated between other hardware and softwares in the entity device.
Through the above description of the embodiments, those skilled in the art can be understood that the application can borrow
It helps software that the mode of necessary general hardware platform is added to realize, hardware realization can also be passed through.Pass through the skill of application the application
Art scheme, compared with currently available technology, the application can determine centrifugation pressure according to the prime mover type in Systems of Centrifugal Compressor Unit
The all working stage that contracting unit includes, wherein working stage includes dividing in operation phase and start-up course and stopping process
The multiple working stages for not including determine the sampling period respectively in each working stage, wherein in same working stage,
Sampling period is settable identical, different adopt can also be set in same working stage according to the signal attribute of different monitoring points
The sample period；In view of special circumstances, when Systems of Centrifugal Compressor Unit is using permanent revolving speed motor as prime mover, due to starting and orderly closedown
The time of Shi Jingli is shorter, therefore also the multiple working stages for including in start-up course and stopping process can be arranged respectively identical
Sampling period.In the present solution, specifically the method in setting sampling period can are as follows: carried out by time difference and/or rotational speed difference really
It is fixed.It is divided into three kinds of situations at this time, the first is that all sampling periods are determined using the time difference；Second is to utilize revolving speed
Difference determines all sampling periods；The third is a kind of preferred embodiment to be provided, according to each work in view of special circumstances
Make the characteristic in stage, choose optimal sampling period method of determination from time difference and rotational speed difference respectively, and is each work rank
Section or each signal attribute determine specific sampling period numerical value, to realize the monitoring to Systems of Centrifugal Compressor Unit state.This programme
Data monitoring is carried out by setting Different sampling period, can be dropped when emergency situations occur, convenient for finding related data
The low difficulty for screening valid data, reduces the sampling load of system, keeps data monitoring more targeted.
It will be appreciated by those skilled in the art that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, module in attached drawing or
Process is not necessarily implemented necessary to the application.It will be appreciated by those skilled in the art that the mould in device in implement scene
Block can according to implement scene describe be distributed in the device of implement scene, can also carry out corresponding change be located at be different from
In one or more devices of this implement scene.The module of above-mentioned implement scene can be merged into a module, can also be into one
Step splits into multiple submodule.
Above-mentioned the application serial number is for illustration only, does not represent the superiority and inferiority of implement scene.Disclosed above is only the application
Several specific implementation scenes, still, the application is not limited to this, and the changes that any person skilled in the art can think of is all
The protection scope of the application should be fallen into.
Claims (10)
1. a kind of method of Systems of Centrifugal Compressor Unit status monitoring, it is characterised in that:
The working stage of Systems of Centrifugal Compressor Unit is divided according to the prime mover type of Systems of Centrifugal Compressor Unit；
The corresponding sampling period is configured for each working stage；
Condition Monitoring Data of the Systems of Centrifugal Compressor Unit in each working stage is recorded using the sampling period, with
Just status monitoring is carried out to the Systems of Centrifugal Compressor Unit.
2. the method according to claim 1, wherein the prime mover type according to Systems of Centrifugal Compressor Unit divides
The working stage of Systems of Centrifugal Compressor Unit, specifically includes:
If the prime mover type be steam turbine, divide the working stage be the red switch stage, warm-up period, boost phase,
It crosses critical stage, further accelerate the stage, into running speed area stage, operation phase, scram stage or orderly shutdown stage,
Wherein, the orderly shutdown stage includes falling-rate period, crosses critical stage, again falling-rate period, steady-state process, shutdown phase；
If the prime mover type is variable-frequency motor or using fluid-flywheel clutch as transmission device, the working stage is divided as punching
Turn the stage, steady-state process, boost phase, crosses critical stage, further accelerates the stage, into running speed area stage, operation phase, event
Hinder shutdown phase or orderly shutdown stage, wherein the orderly shutdown stage includes falling-rate period, crosses critical stage, again reduction of speed
Stage, steady-state process, shutdown phase；
If the prime mover type is permanent revolving speed motor, divide the working stage be the red switch stage, it is boost phase, excessively critical
Stage, the stage of further accelerating, into work perseverance revolving speed stage, operation phase, scram stage or orderly shutdown stage, wherein
The orderly shutdown stage includes falling-rate period, crosses critical stage, again falling-rate period, shutdown phase.
3. according to the method described in claim 2, it is characterized in that, described configure corresponding sampling for each working stage
Period specifically includes:
Respectively each working stage configures the independent sampling period；Or
The unlike signal attribute configuration independent sampling period in respectively each working stage, wherein the signal attribute
Including bearing temperature signal, bearing vibration signal, bearing displacement signal and unit key signal, the bearing vibration signal includes
One frequency-doubled signal and two frequency-doubled signals.
4. according to the method described in claim 3, it is characterized in that, described configure corresponding sampling for each working stage
Period, specifically further include:
If it is determined that the prime mover type is permanent revolving speed motor, then by the red switch stage for including during the machine that opens, it is described plus
The fast stage described cross critical stage, described further accelerates that the stage, described into the work perseverance revolving speed stage to be uniformly configured to first default
Sampling period；
If it is determined that the prime mover type is permanent revolving speed motor, then the reduction of speed rank that will include in the orderly shutdown stage
Section, critical stage, the falling-rate period again, the shutdown phase crossed uniformly were configured to for the second default sampling period.
5. according to the method described in claim 4, it is characterized in that, described record the centrifugal compressed using the sampling period
Condition Monitoring Data of the unit in each working stage, specifically includes:
The sampling period in each working stage determined using the time difference Δ T records the Systems of Centrifugal Compressor Unit
Condition Monitoring Data；Or
The sampling period in each working stage determined using the rotation speed difference deltan RPM records the Systems of Centrifugal Compressor Unit
Condition Monitoring Data；Or
The sampling period in each working stage determined using the time difference Δ T and/or rotation speed difference deltan RPM is remembered
Record the Condition Monitoring Data of the Systems of Centrifugal Compressor Unit.
6. according to the method described in claim 5, it is characterized in that, described utilize the time difference Δ T and/or the rotational speed difference
The sampling period in each working stage that Δ RPM is determined records the Condition Monitoring Data of the Systems of Centrifugal Compressor Unit, tool
Body includes:
The current working phase of the Systems of Centrifugal Compressor Unit operation is analyzed in real time；
If it is determined that the current working phase is warm-up period or steady-state process, then work as using described in time difference Δ T determination
Sampling period in preceding working stage；
If it is determined that the current working phase is the operation phase and the prime mover type is steam turbine or variable-frequency motor or with liquid
When couple clutch is transmission device, then the sampling period in the current working phase is determined using the rotation speed difference deltan RPM；
If it is determined that the current working phase is the operation phase and when the prime mover type is permanent revolving speed motor, then using described
Time difference, Δ T determined the sampling period in the current working phase；
If it is determined that then utilizing the time when the non-warm-up period of the current working phase, unstable state stage and inoperative stage
Poor Δ T or the rotation speed difference deltan RPM determine the sampling period in the current working phase.
7. according to the method described in claim 5, it is characterized in that, if using the rotation speed difference deltan RPM as the sampling period,
The then calculation formula in the sampling period are as follows:Wherein, SmaxFor tachometer value the biggest, Smin
For minimum speed value, K is adjustment factor, TrampFor speed up time, NtdiFor the tricks of Systems of Centrifugal Compressor Unit.
8. a kind of device of Systems of Centrifugal Compressor Unit status monitoring, it is characterised in that:
Division module divides the working stage of Systems of Centrifugal Compressor Unit for the prime mover type according to Systems of Centrifugal Compressor Unit；
Configuration module, for configuring the corresponding sampling period for each working stage；
Logging modle, for recording shape of the Systems of Centrifugal Compressor Unit in each working stage using the sampling period
State monitoring data, to carry out status monitoring to the Systems of Centrifugal Compressor Unit.
9. a kind of storage equipment, is stored thereon with computer program, which is characterized in that realization when described program is executed by processor
The method of Systems of Centrifugal Compressor Unit status monitoring described in any one of claims 1 to 7.
10. a kind of Systems of Centrifugal Compressor Unit state monitoring apparatus, including storage equipment, processor and storage are on a storage device and can
The computer program run on a processor, which is characterized in that the processor realized when executing described program claim 1 to
The method of Systems of Centrifugal Compressor Unit status monitoring described in any one of 7.
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