CN106855054A - Method and device for evaluating state of pipeline oil transfer pump - Google Patents
Method and device for evaluating state of pipeline oil transfer pump Download PDFInfo
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- 238000012546 transfer Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000011156 evaluation Methods 0.000 claims abstract description 342
- 238000011158 quantitative evaluation Methods 0.000 claims abstract description 163
- 238000004364 calculation method Methods 0.000 claims abstract description 20
- 239000003921 oil Substances 0.000 claims description 116
- 239000010687 lubricating oil Substances 0.000 claims description 24
- 230000000630 rising effect Effects 0.000 claims description 15
- 229910008045 Si-Si Inorganic materials 0.000 claims description 14
- 229910006411 Si—Si Inorganic materials 0.000 claims description 14
- 239000000446 fuel Substances 0.000 claims description 10
- 239000000314 lubricant Substances 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 abstract description 2
- 238000005461 lubrication Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
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- 230000008439 repair process Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
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Abstract
The invention discloses a method and a device for evaluating the state of a pipeline oil transfer pump, and belongs to the field of oil and gas storage and transportation. The method comprises the following steps: acquiring measured values of n state evaluation parameters in a state evaluation parameter set; according to a preset quantitative evaluation algorithm, carrying out quantitative evaluation on the measured value of each state evaluation parameter in the state evaluation parameter set to obtain a quantitative evaluation value set S; determining the deviation degree between the measured value and the ideal value of each state evaluation parameter through a deviation degree calculation formula according to the quantitative evaluation value set S to obtain a deviation degree set V; determining a state evaluation result HI of the pipeline oil transfer pump through a state evaluation formula according to the deviation set V and the quantitative evaluation value set S; and finally, operating or maintaining the oil conveying pipeline according to the state evaluation result HI of the pipeline oil conveying pump. The invention realizes the quantitative evaluation of the state of the oil transfer pump. The invention is used for evaluating the state of the oil transfer pump.
Description
Technical Field
The invention relates to the field of oil and gas storage and transportation, in particular to a method and a device for evaluating the state of a pipeline oil transfer pump.
Background
The pipeline oil transfer pump is a device for converting the mechanical energy of a prime motor into liquid energy, and mainly drives an impeller to rotate through the prime motor to apply work to the liquid so that the liquid is conveyed to a required high place or a position with required pressure from an absorption pool. The pipeline oil transfer pump is a key device in an oil transfer pipeline, the state information of the pipeline oil transfer pump can reflect the operation reliability of the pipeline oil transfer pump, and the pipeline oil transfer pump has important reference significance for the operation, maintenance and repair of the oil transfer pipeline.
In the related art, a related sensor is usually installed at a bearing, a bearing seat, and the like of the pipeline oil pump, and the sensor detects a measured value of parameters of the pipeline oil pump, such as vibration, temperature, leakage, noise, and the like, and then judges whether the pipeline oil pump has a fault according to the measured value detected by the sensor.
However, the measured value detected by the sensor can only be used for judging whether the pipeline oil delivery pump has a fault, and the evaluation precision of the running state of the pipeline oil delivery pump is low.
Disclosure of Invention
In order to solve the problems of the related art, the invention provides a method and a device for evaluating the state of a pipeline oil transfer pump. The technical scheme is as follows:
in one aspect, a method for evaluating the state of a pipeline oil transfer pump is provided, and the method comprises the following steps:
acquiring measured values U ═ U of n state evaluation parameters included in the state evaluation parameter set1，U2，...，Ui，...，UnN is an integer greater than 1, UiThe measured value of the ith state evaluation parameter is represented, i is more than or equal to 1 and less than or equal to n, and n state evaluation parameters included in the state evaluation parameter set are used for evaluating the running state of the pipeline oil transfer pump;
according to a preset quantitative evaluation algorithm, carrying out quantitative evaluation on the measured value U of each state evaluation parameter in the state evaluation parameter set to obtain a quantitative evaluation value set S ═ S composed of n quantitative evaluation values1，S2，...，Si，...，Sn}；
Determining the measured value and the measured value of each state evaluation parameter according to the quantitative evaluation value set S and through a deviation calculation formulaThe degree of deviation between the ideal values is obtained as a deviation set V ═ V composed of n deviation degrees1，V2，...，Vi，...，VnThe calculation formula of the deviation degree is as follows: vi＝|Si-Si'|/Si', wherein, ViFor the deviation of the measured value of the ith state evaluation parameter from the ideal value, SiAnd Si' a quantitative evaluation value and a preset ideal evaluation value of a measured value of the ith state evaluation parameter, respectively;
determining a penalty factor C through a penalty factor determination formula according to the deviation set V, wherein the penalty factor determination formula is as follows:wherein maxV represents taking a maximum value in the deviation set V, β is a preset reference threshold, where e is a natural constant;
according to the penalty factor C and the quantitative evaluation value set S, determining a state evaluation result HI of the pipeline oil transfer pump through a state evaluation formula, wherein the state evaluation formula is as follows:wherein, aiEvaluating the weight of the parameter for the preset ith state;
and operating or maintaining the oil conveying pipeline according to the state evaluation result HI of the pipeline oil conveying pump.
Optionally, the n state evaluation parameters included in the state evaluation parameter set are: vibration parameters, temperature parameters, performance parameters, leakage parameters, noise parameters, and lubricant parameters.
Optionally, the vibration parameters include drive-end bearing box vibration sub-parameters and non-drive-end bearing box vibration sub-parameters;
the temperature parameters comprise a driving end bearing temperature rising sub parameter and a non-driving end bearing temperature rising sub parameter;
the performance parameters comprise a head sub-parameter and an efficiency sub-parameter;
the leakage parameters comprise sub-parameters of the leakage state of the mechanical seal at the driving end, the leakage state of the mechanical seal at the non-driving end and sub-parameters of the leakage state of the pump body;
the noise parameter comprises a pump body sound pressure sub-parameter;
the lubricating oil parameters comprise a driving-end bearing box lubricating oil state sub-parameter and a non-driving-end bearing box lubricating oil state sub-parameter.
Optionally, the measured value U of each state evaluation parameter in the state evaluation parameter set is quantitatively evaluated according to a preset quantitative evaluation algorithm, so as to obtain a quantitative evaluation value set S ═ S1，S2，...，Si，...，SnAnd (4) the method comprises the following steps:
detecting the number of state evaluation sub-parameters included in any state evaluation parameter in the state evaluation parameter set;
when the number of the state evaluation sub-parameters included in any state evaluation parameter is 1, determining a quantitative evaluation value of any state evaluation parameter according to a first preset algorithm;
when the number of the state evaluation sub-parameters included in any state evaluation parameter is greater than 1, determining the quantitative evaluation of any state evaluation parameter o according to a second preset algorithm, wherein the second preset algorithm is as follows:wherein S isoIs a quantitative evaluation value of the any state evaluation parameter o, k is the number of state evaluation sub-parameters included in the any state evaluation parameter o, αjWeight of the jth state evaluation sub-parameter for said any state evaluation parameter o, SojAnd evaluating the quantitative evaluation value of the jth state evaluation sub-parameter in any state evaluation parameter o.
In another aspect, there is provided a pipe fuel pump state evaluation apparatus, the apparatus including:
an acquisition unit configured to acquire measured values U ═ U of n state evaluation parameters included in the state evaluation parameter set1，U2，...，Ui，...，UnN is an integer greater than 1, UiThe measured value of the ith state evaluation parameter is represented, i is more than or equal to 1 and less than or equal to n, and n state evaluation parameters included in the state evaluation parameter set are used for evaluating the running state of the pipeline oil transfer pump;
an evaluation unit, configured to perform quantitative evaluation on the measured value U of each state evaluation parameter in the state evaluation parameter set according to a preset quantitative evaluation algorithm, and obtain a quantitative evaluation value set S ═ S composed of n quantitative evaluation values1，S2，...，Si，...，Sn}；
A first determining unit, configured to determine, according to the quantitative evaluation value set S, a degree of deviation between a measured value and an ideal value of each of the state evaluation parameters by a degree of deviation calculation formula, and obtain a degree of deviation set V ═ { V ═ V composed of n degrees of deviation1，V2，...，Vi，...，VnThe calculation formula of the deviation degree is as follows: vi＝|Si-Si'|/Si', wherein, ViFor the deviation of the measured value of the ith state evaluation parameter from the ideal value, SiAnd Si' a quantitative evaluation value and a preset ideal evaluation value of a measured value of the ith state evaluation parameter, respectively;
a second determining unit, configured to determine a penalty factor C according to the deviation set V through a penalty factor determination formula, where the penalty factor determination formula is:wherein maxV represents taking a maximum value in the deviation set V, and β is a preset reference threshold;
a third determining unit, configured to determine a state evaluation result HI of the pipeline oil transfer pump according to the penalty factor C and the quantitative evaluation value set S through a state evaluation formula, where the state evaluation formula is:wherein, aiEvaluating the weight of the parameter for the preset ith state;
and the operation maintenance unit is used for operating or maintaining the oil conveying pipeline according to the state evaluation result HI of the pipeline oil conveying pump.
Optionally, the n state evaluation parameters included in the state evaluation parameter set are: vibration parameters, temperature parameters, performance parameters, leakage parameters, noise parameters, and lubricant parameters.
Optionally, the vibration parameters include drive-end bearing box vibration sub-parameters and non-drive-end bearing box vibration sub-parameters;
the temperature parameters comprise a driving end bearing temperature rising sub parameter and a non-driving end bearing temperature rising sub parameter;
the performance parameters comprise a head sub-parameter and an efficiency sub-parameter;
the leakage parameters comprise sub-parameters of the leakage state of the mechanical seal at the driving end, the leakage state of the mechanical seal at the non-driving end and sub-parameters of the leakage state of the pump body;
the noise parameter comprises a pump body sound pressure sub-parameter;
the lubricating oil parameters comprise a driving-end bearing box lubricating oil state sub-parameter and a non-driving-end bearing box lubricating oil state sub-parameter.
Optionally, the evaluation unit is further configured to:
detecting the number of state evaluation sub-parameters included in any state evaluation parameter in the state evaluation parameter set;
when the number of the state evaluation sub-parameters included in any state evaluation parameter is 1, determining a quantitative evaluation value of any state evaluation parameter according to a first preset algorithm;
when the number of the state evaluation sub-parameters included in any state evaluation parameter is greater than 1, determining the quantitative evaluation of any state evaluation parameter o according to a second preset algorithm, wherein the second preset algorithm is as follows:wherein S isoIs a quantitative evaluation value of the any state evaluation parameter o, k is the number of state evaluation sub-parameters included in the any state evaluation parameter o, αjWeight of the jth state evaluation sub-parameter for said any state evaluation parameter o, SojAnd evaluating the quantitative evaluation value of the jth state evaluation sub-parameter in any state evaluation parameter o.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
according to the method and the device for evaluating the state of the pipeline oil delivery pump, provided by the embodiment of the invention, the obtained measured values U of each state evaluation parameter can be quantitatively evaluated according to a preset quantitative evaluation algorithm to obtain a quantitative evaluation value set S, and a formula V is calculated according to the deviation degree and according to the quantitative evaluation value set Si＝|Si-Si'|/Si' determining a deviation between a measured value and an ideal value of each state evaluation parameter, and a penalty factor C for correcting the deviation, and then, based on the penalty factor C and the quantitative evaluation value set S, passing through a state evaluation formulaAnd determining a state evaluation result HI of the pipeline oil transfer pump, and operating or maintaining the oil transfer pipeline according to the state evaluation result HI of the pipeline oil transfer pump. The method for evaluating the state of the pipeline oil delivery pump provided by the embodiment of the invention can quantitatively evaluate the running state of the pipeline oil delivery pump,the evaluation result has higher precision and has important guiding significance on the operation and maintenance of the oil pipeline.
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In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart of a method for evaluating the condition of a pipeline fuel delivery pump according to an embodiment of the present invention;
FIG. 2 is a flow chart of another method for evaluating the status of a pipeline fuel pump according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a state evaluation device of a pipeline fuel delivery pump according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The embodiment of the invention provides a method for evaluating the state of a pipeline oil transfer pump, and referring to fig. 1, the method comprises the following steps:
step 101, obtaining measured values U ═ U of n state evaluation parameters included in the state evaluation parameter set1，U2，...，Ui，...，UnN is an integer greater than 1.
UiA measured value representing the ith state evaluation parameter, i is greater than or equal to 1 and less than or equal to n, and the state evaluation parameter set comprisesThe n state evaluation parameters are used for evaluating the running state of the pipeline oil transfer pump.
Step 102, performing quantitative evaluation on the measured value U of each state evaluation parameter in the state evaluation parameter set according to a preset quantitative evaluation algorithm to obtain a quantitative evaluation value set S ═ S composed of n quantitative evaluation values1，S2，...，Si，...，Sn}。
Wherein S isiMeasured value U representing the ith state evaluation parameteriI is not less than 1 and not more than n.
Step 103, determining the degree of deviation between the measured value and the ideal value of each state evaluation parameter by a deviation calculation formula according to the quantitative evaluation value set S, and obtaining a deviation set V ═ { V } consisting of n deviation degrees1，V2，...，Vi，...，Vn}。
The calculation formula of the deviation degree is as follows: vi＝|Si-Si'|/Si', wherein, ViFor the deviation of the measured value of the ith state evaluation parameter from the ideal value, SiAnd Si' a quantitative evaluation value and a preset ideal evaluation value of the measurement value of the i-th state evaluation parameter, respectively, where | | denotes taking an absolute value of the content in | | |.
And 104, determining a penalty factor C by a penalty factor determination formula according to the deviation set V.
The punishment factor determination formula is as follows:wherein maxV represents taking the maximum value in the deviation set V, β is a preset reference threshold, where e is a natural constant.
And 105, determining a state evaluation result HI of the pipeline oil transfer pump through a state evaluation formula according to the penalty factor C and the quantitative evaluation value set S.
The state evaluation formula is as follows:wherein, aiAnd evaluating the weight of the parameter for the preset ith state.The representation sums the content in parentheses from i-1 to i-n.
And step 106, operating or maintaining the oil conveying pipeline according to the state evaluation result HI of the pipeline oil conveying pump.
In summary, according to the method for evaluating the state of the pipeline oil delivery pump provided by the embodiment of the present invention, the obtained measured values U of each state evaluation parameter can be quantitatively evaluated according to a preset quantitative evaluation algorithm to obtain a quantitative evaluation value set S, and a deviation degree calculation formula V is used to calculate a quantitative evaluation value set S according to the quantitative evaluation value set Si＝|Si-Si'|/Si' determining a deviation between a measured value and an ideal value of each state evaluation parameter, and a penalty factor C for correcting the deviation, and then, based on the penalty factor C and the quantitative evaluation value set S, passing through a state evaluation formulaAnd determining a state evaluation result HI of the pipeline oil transfer pump, and operating or maintaining the oil transfer pipeline according to the state evaluation result HI of the pipeline oil transfer pump. The method for evaluating the state of the pipeline oil delivery pump provided by the embodiment of the invention can quantitatively evaluate the running state of the pipeline oil delivery pump, has higher precision of an evaluation result, and has important guiding significance for running and maintaining the oil delivery pipeline.
Optionally, the state evaluation parameter set includes: vibration parameters, temperature parameters, performance parameters, leakage parameters, noise parameters, and lubricant parameters.
Optionally, the vibration parameters include drive-end bearing box vibration sub-parameters and non-drive-end bearing box vibration sub-parameters;
the temperature parameters comprise a driving end bearing temperature rising sub parameter and a non-driving end bearing temperature rising sub parameter;
the performance parameters include a head sub-parameter and an efficiency sub-parameter;
the leakage parameters comprise sub-parameters of the leakage state of the mechanical seal at the driving end, the leakage state of the mechanical seal at the non-driving end and sub-parameters of the leakage state of the pump body;
the noise parameter comprises a pump body sound pressure sub-parameter;
the lubrication oil parameters include a drive-end bearing housing lubrication oil status sub-parameter and a non-drive-end bearing housing lubrication oil status sub-parameter.
Optionally, the measured value U of each state evaluation parameter in the state evaluation parameter set is quantitatively evaluated according to a preset quantitative evaluation algorithm, and a quantitative evaluation value set S ═ S is obtained1，S2，...，Si，...，SnAnd (4) the method comprises the following steps:
detecting the number of state evaluation sub-parameters included in any state evaluation parameter in the state evaluation parameter set;
when the number of the state evaluation sub-parameters included in any state evaluation parameter is 1, determining the quantitative evaluation value of any state evaluation parameter according to a first preset algorithm;
when the number of the state evaluation sub-parameters included in any state evaluation parameter is greater than 1, determining the quantitative evaluation of any state evaluation parameter o according to a second preset algorithm, wherein the second preset algorithm is as follows:where So is a quantitative evaluation value of the any state evaluation parameter o, k is the number of state evaluation sub-parameters included in the any state evaluation parameter o, αjThe weight of the jth state evaluation sub-parameter for the any state evaluation parameter oAnd j is greater than or equal to 1 and less than or equal to k.The quantitative evaluation value of the jth state evaluation sub-parameter in the any state evaluation parameter o is evaluated.
In summary, according to the method for evaluating the state of the pipeline oil delivery pump provided by the embodiment of the present invention, the obtained measured values U of each state evaluation parameter can be quantitatively evaluated according to a preset quantitative evaluation algorithm to obtain a quantitative evaluation value set S, and a deviation degree calculation formula V is used to calculate a quantitative evaluation value set S according to the quantitative evaluation value set Si＝|Si-Si'|/Si' determining a deviation between a measured value and an ideal value of each state evaluation parameter, and a penalty factor C for correcting the deviation, and then, based on the penalty factor C and the quantitative evaluation value set S, passing through a state evaluation formulaAnd determining a state evaluation result HI of the pipeline oil transfer pump, and operating or maintaining the oil transfer pipeline according to the state evaluation result HI of the pipeline oil transfer pump. The method for evaluating the state of the pipeline oil delivery pump provided by the embodiment of the invention can quantitatively evaluate the running state of the pipeline oil delivery pump, has higher precision of an evaluation result, and has important guiding significance for running and maintaining the oil delivery pipeline.
Fig. 2 is another method for evaluating the state of a pipeline fuel delivery pump according to an embodiment of the present invention, as shown in fig. 2, the method includes:
step 201, obtaining measured values U ═ U of n state evaluation parameters included in the state evaluation parameter set1，U2，...，Ui，...，Un}. Step 202 is performed.
N is an integer greater than 1, UiRepresents the measured value of the ith state evaluation parameter, i is more than or equal to 1 and less than or equal to n, and the n state evaluation parameters included in the state evaluation parameter set are used for evaluationThe running state of the pipeline oil transfer pump.
In this embodiment of the present invention, the state evaluation parameter set may include 6 state evaluation parameters, where the 6 state evaluation parameters may be: vibration parameters, temperature parameters, performance parameters, leakage parameters, noise parameters, and lubricant parameters. Therefore, the measured value U of the state evaluation parameter obtained in the embodiment of the present invention may be: u ═ U1，U2，...，U6In which U1，U2，...，U6Respectively representing measured values of a vibration parameter, a temperature parameter, a performance parameter, a leakage parameter, a noise parameter and a lubricating oil parameter. During actual detection, in order to improve the accuracy of state detection, the vibration parameters may include drive-end bearing box vibration sub-parameters and non-drive-end bearing box vibration sub-parameters; the temperature parameters comprise a driving end bearing temperature rising sub parameter and a non-driving end bearing temperature rising sub parameter; the performance parameters include a head sub-parameter and an efficiency sub-parameter; the leakage parameters comprise sub-parameters of the leakage state of the mechanical seal at the driving end, the leakage state of the mechanical seal at the non-driving end and sub-parameters of the leakage state of the pump body; the noise parameter comprises a pump body sound pressure sub-parameter; the lubrication oil parameters include a drive-end bearing housing lubrication oil status sub-parameter and a non-drive-end bearing housing lubrication oil status sub-parameter.
As an example, assume that the rated flow rate of the pipeline fuel pump to be evaluated is 3100 cubic meters per hour (m)3H) rated lift of 220m, design pressure of 10 megapascals (MPa), rated efficiency of 89%, and measured values of state evaluation parameters of the oil transfer pump detected by a sensor after 1000 hours of industrial operation of the oil transfer pump can be shown in table 1. Wherein the measured value of the head sub-parameter in the performance parameter is U31229m, the measured value of the efficiency sub-parameter is U3288.2%, the measured value of the sub-parameter of the vibration of the drive end bearing box in the vibration parameters is U11The measured value of the rotor parameter of the non-drive end bearing box vibrator is U which is 2.82mm/s12The measured value of the sound pressure sub-parameter of the pump body in the noise parameter is U (3.02 mm/s)5＝86.2dB。
TABLE 1
In practical applications, in order to improve the accuracy of evaluating the state of the pipeline oil delivery pump, in addition to detecting the parameters shown in table 1, the measured values of the parameters of the oil delivery pump, such as the actual flow rate, the ambient temperature, the type of the bearing, and the horizontal vibration, may also be detected, which is not limited in the embodiment of the present invention.
Step 202, detecting the number of state evaluation sub-parameters included in any state evaluation parameter in the state evaluation parameter set.
When the number of the state evaluation sub-parameters included in any one state evaluation parameter is 1, executing step 203; when the number of state evaluation sub-parameters included in any one of the state evaluation parameters is greater than 1, step 204 is executed.
In the embodiment of the present invention, for each state evaluation parameter, a corresponding quantitative evaluation algorithm is preset, and according to the corresponding quantitative evaluation algorithm and the obtained measurement value, the quantitative evaluation value of each state evaluation parameter can be obtained respectively. For example, the quantitative evaluation value S of the vibration parameter1Quantitative evaluation value S of temperature parameter2Quantitative evaluation value S of performance parameter3Quantitative evaluation value S of leakage parameter4Quantitative evaluation value S of noise parameter5And a quantitative evaluation value S of the lubricating oil parameter6。
Since some state evaluation sub-parameters may include a plurality of state evaluation sub-parameters, when quantitatively evaluating the measurement value of each state evaluation parameter, it is necessary to first detect the number of state evaluation sub-parameters included in any state evaluation parameter in the state evaluation parameter set. As an example, as can be seen from the state evaluation sub-parameters shown in table 1 above, the number of state evaluation sub-parameters included in the vibration parameter, the temperature parameter, the performance parameter, the leakage parameter, the noise parameter, and the lubricating oil parameter is: 2, 3, 1 and 2. Step 203 may be performed when determining the quantitative evaluation value of the noise parameter, and step 204 may be performed when determining the quantitative evaluation values of the vibration parameter, the temperature parameter, the performance parameter, the leakage parameter, and the lubricating oil parameter.
Step 203, determining the quantitative evaluation value of any state evaluation parameter according to a first preset algorithm. Step 205 is performed.
When the number of the state evaluation sub-parameters included in any one state evaluation parameter is 1, the quantitative evaluation value of any one state evaluation parameter can be determined directly according to the first preset algorithm. For example, since the noise parameter in the state evaluation parameter set includes a state evaluation sub-parameter of 1, the quantitative evaluation value S of the noise parameter may be determined directly according to the first preset algorithm5. For the quantitative evaluation of the noise parameter, the first preset algorithm may be:
measured values U of the noise parameter shown in Table 15The above equation is substituted for 86.2dB, and the quantitative evaluation value of the noise parameter can be obtained: s5＝0.885
And step 204, determining the quantitative evaluation of any state evaluation parameter o according to a second preset algorithm. Step 205 is performed.
The second preset algorithm is as follows:wherein,as a sum formula, SoIs a quantitative evaluation value of the any state evaluation parameter o, k is the number of state evaluation sub-parameters included in the any state evaluation parameter o, αjAnd the weight of the jth state evaluation sub-parameter of any state evaluation parameter o, wherein j satisfies the following condition: j is more than or equal to 1 and less than or equal to k, SojThe quantitative evaluation value of the jth state evaluation sub-parameter in the any state evaluation parameter o is evaluated.
For example, as for the vibration parameter, the temperature parameter, the performance parameter, the leakage parameter and the lubricating oil parameter in the state evaluation parameter set, since each of the 5 parameters includes at least 2 sub-parameters, it is necessary to determine the quantitative evaluation value of each parameter according to a second preset algorithm.
(1) For the quantitative evaluation of the measured value of the vibration parameter, according to the vibration classification condition in the vibration monitoring evaluation standard of International Organization for Standardization (ISO) 10816-3, the evaluation result range can be set for the vibration measured values at different vibration levels, and the set evaluation result range can be shown in table 2, wherein when the measured value of the vibration parameter is less than 2.3mm/s, the evaluation result can be 1.0, and when the measured value of the vibration parameter is greater than or equal to 2.3mm/s and less than 4.5mm/s, the evaluation result range can be 0.8 to 1.0.
TABLE 2
In the embodiment of the present invention, a linear interpolation method may be adopted to perform quantitative evaluation according to the specific measured value of the actually obtained vibration parameter and corresponding to the evaluation result range shown in table 2. For example, as can be seen from table 1, the measured value U of the drive-end bearing housing vibrator sub-parameter among the vibration parameters112.82mm/s, measured value U of rotor parameter of non-drive end bearing box vibrator12If the measured values of the two sub-parameters belong to class B as shown in table 2, the quantitative evaluation values S of the two state evaluation sub-parameters included in the vibration parameter can be obtained according to the linear interpolation method11And S12：
S11＝1.0-(1.0-0.8)×(U11-2.3)/(4.5-2.3)＝0.953，
S12＝1.0-(1.0-0.8)(U12-2.3)/(4.5-2.3)＝0.935，
In the above equation, 1.0 and 0.8 are the upper and lower limits of the evaluation result corresponding to class B, respectively, and 4.5 and 2.3 are the upper and lower limits of the measurement value corresponding to class B, respectively, it is assumed that the weights α of the two state evaluation sub-parameters included in the vibration parameter are included11And α12Are all set to 0.5, according to the second preset algorithm:
a quantitative evaluation value of the measurement value of the vibration parameter can be obtained:
S1＝α11×S11+α12×S12＝0.944。
(2) for the quantitative evaluation of the measured value of the temperature parameter, the quantitative evaluation value S2j of the jth sub-parameter may be determined according to the following temperature quantitative evaluation algorithm in the embodiment of the present invention:
according to the measured values obtained in table 1, the measured value U of the temperature rise subparameter of the drive-end bearing in the temperature parameters can be known21Measured value U of bearing temperature raising sub-parameter at non-driving end at 25 DEG C22When the temperature is 50 ℃, the two measured values are respectively substituted into the temperature quantitative evaluation algorithm, and the quantitative evaluation value S of the measured value of the temperature rise sub-parameter of the bearing at the driving end can be obtained21Quantitative evaluation value S of measured values of bearing temperature rising subparameters of non-drive end, 122＝0.88。
Weight α of two state evaluation sub-parameters included in the assumed temperature parameter21And α22Are all set to 0.5, according to the second preset algorithm:a quantitative evaluation value of the temperature parameter can be obtained:
S2＝α21×S21+α22×S22＝0.94
(3) for quantitative evaluation of the measured value of the performance parameter, the flow rate of the pipeline oil transfer pump under the operation condition can be 1867m3And comparing the actual measured value in the/h period with a delivery performance curve of the oil transfer pump, and quantitatively evaluating the head sub-parameter and the efficiency sub-parameter included in the performance parameter. When determining the quantitative evaluation value, the change rates of the lift and the efficiency may be determined according to a change rate formula, where the change rate formula is:
then, the quantitative evaluation values of the head sub-parameter and the efficiency sub-parameter can be determined according to a preset performance parameter quantitative evaluation formula:
from table 1, the actual measured value of the head sub-parameter is U31229m with a rated lift of 220m, the rate of change Δ h of the sub-parameter of the lift can be determined according to the above formula of the rate of change310.4% in 220| (229 once again)/220 |, the actual measured value of the efficiency sub-parameter is U3288.2%, with a nominal efficiency of 89%, the rate of change Δ h of the efficiency sub-parameter can be determined according to the rate of change formula above32The variation rate of the two sub-parameters is respectively substituted into the quantitative evaluation formula of the performance parameter, so that the lift sub-parameter and the efficiency sub-parameter can be determinedThe quantitative rating of the measured values of the number is 1, assuming the preset weight α of the head sub-parameter310.6, predetermined weight α of efficiency sub-parameter320.4, according to the second predetermined algorithm:the quantitative evaluation value from which the measured value of the performance parameter can be obtained is:
S3＝α31×S31+α32×S32＝1。
(4) quantitative evaluation of the measured value of the leakage parameter, wherein the quantitative evaluation formula of the mechanical seal leakage state sub-parameters of the driving end and the non-driving end included in the leakage parameter is as follows:
as can be seen from table 1, the measured values of the mechanical seal leakage status sub-parameters of the driving end are: u shape41The measured values of the mechanical seal leakage state subparameter of the non-driving end are 1 drop/min: u shape42The quantitative evaluation value S of the measured values of the mechanical seal leakage state subparameter of the driving end and the non-driving end can be determined according to the quantitative evaluation formula, wherein the measured values are 3 drops per minute41And S42Are all 1.
The quantitative evaluation formula of the pump body leakage sub-parameter included in the leakage parameter is as follows:
as can be seen from table 1, the measured values of the pump body leakage sub-parameters are: u shape43Since no leakage is observed, a quantitative evaluation value S of the measured values of the pump leakage partial parameters can be determined43Is 1.
In the assumption of the leakage parameterThe preset weight α of the drive-end mechanical seal leakage status subparameter, the non-drive-end mechanical seal leakage status subparameter and the pump body leakage subparameter41、α42And α430.3, 0.3 and 0.4, respectively, then according to the second predetermined algorithm:the quantitative evaluation value from which the measured value of the leakage parameter can be obtained is:
S4＝α41×S41+α42×S42+α43×S43＝1。
(5) quantitative evaluation of measured values of lubricating oil parameters, in the embodiment of the present invention, the quantitative evaluation of the lubricating oil parameters may be determined by an observation method according to the correspondence between the state of the lubricating oil and the quantitative evaluation values shown in table 3, taking into account the actual conditions at the pipeline production site.
TABLE 3
From table 1, the measured values U of the sub-parameters of the state of the oil at the drive side and at the non-drive side of the oil parameters are known61And U62Both are excellent, therefore, in combination with Table 3, the quantitative evaluation values of the two sub-parameters of the state of the lubricating oil are both 1, assuming the preset weights α of the two sub-parameters61And α62Are all 0.5. Then according to the second preset algorithm:the quantitative evaluation values from which the measured values of the lubricating oil parameters can be obtained are: s6＝α61×S61+α62×S62＝1。
The quantitative evaluation values of the measured values of the 6 state evaluation parameters can be obtained by integrating step 203 and the above-described (1) to (5), and the 6 quantitative evaluation values can be combined into a quantitative evaluation value set S ═ 0.944, 0.94, 1, 1, 0.885, 1 }.
Step 205 determines the degree of deviation between the measured value and the ideal value of each state evaluation parameter by a degree of deviation calculation formula based on the quantitative evaluation value set S, and obtains a degree of deviation set V ═ { V } consisting of n degrees of deviation1，V2，...，Vi，...，Vn}. Step 206 is performed.
The calculation formula of the deviation degree is as follows: vi＝|Si-Si'|/Si', wherein, ViFor the deviation of the measured value of the ith state evaluation parameter from the ideal value, SiAnd Si' a quantitative evaluation value and a preset ideal evaluation value of the measured value of the i-th state evaluation parameter, respectively.
In the disclosed embodiment, the preset ideal evaluation values of the respective state evaluation parameters may each be set to 1. When the state evaluation parameter set includes 6 state evaluation parameters: in the case of the vibration parameter, the temperature parameter, the performance parameter, the leakage parameter, the noise parameter, and the lubricating oil parameter, the preset ideal evaluation value set of the 6 state evaluation parameters may be S' ═ {1, 1, 1, 1, 1 }. From the quantitative evaluation value set S ═ {0.944, 0.94, 1, 1, 0.885, 1}, and the above deviation degree calculation formula: vi＝|Si-Si'|/Si' the deviation degrees of the 6 state evaluation parameters can be determined as follows: 0.056, 0.06, 0, 0, 0.115 and 0, and from the 6 degrees of deviation, a set of degrees of deviation V ═ 0.056, 0.06, 0, 0.115, 0} is composed.
And step 206, determining a penalty factor C by a penalty factor determination formula according to the deviation set V. Step 207 is performed.
The punishment factor determination formula is as follows:wherein maxV represents the set of deviation degreesAnd the maximum value β in the V is a preset reference threshold value, and the penalty factor can correct state evaluation parameters deviating from an ideal state, so that the accuracy of state evaluation of the pipeline oil transfer pump is improved.
For example, when the set of deviation degrees is V ═ {0.056, 0.06, 0, 0, 0.115, 0}, then maxV ═ max {0.056, 0.06, 0, 0, 0.115, 0} -, 0.115, the preset reference threshold β ═ 0.1, 0 is determined according to the above penalty factor determination formula, and since maxV ═ 0.115 is greater than the reference threshold 0.1, the penalty factor C ═ e may be determined0.1-0.115＝0.985。
And step 207, determining a state evaluation result HI of the pipeline oil transfer pump through a state evaluation formula according to the penalty factor C and the quantitative evaluation value set S. Step 208 is performed.
The state evaluation formula is as follows:wherein, aiAnd evaluating the weight of the parameter for the preset ith state.
Since the influence degree of each state evaluation parameter in the state evaluation parameter set on the actual operation state of the oil transfer pump is different, when determining the state evaluation result of the oil transfer pump, a preset weight can be respectively assigned to each state evaluation parameter. For example, it is assumed that for the vibration parameter, the temperature parameter, the performance parameter, the leakage parameter, the noise parameter, and the lubricating oil parameter included in the state evaluation parameter set, the preset weight set is a ═ a1，a2，a3，a4，a5，a60.2, 0.16, 0.2, 0.16, 0.12, 0.16, wherein the weight a is1To a6According to the quantitative evaluation set S {0.944, 0.94, 1, 1, 0.885, 1} and the penalty factor C, the state evaluation result of the pipeline oil pump can be determined by a state evaluation formula as HI ═ 0.985 × (0.944 × 0.2+0.94 × 0.16.16 +1 × 0.2.2 +1 × 0.16.16 +0.885 × 0.12.12 +1 × 0).16)＝0.951。
And step 208, operating or maintaining the oil conveying pipeline according to the state evaluation result HI of the pipeline oil conveying pump.
And according to the state evaluation result HI obtained in the step, carrying out normalized quantitative evaluation on the state of the pipeline oil transfer pump, wherein the range of the evaluation result HI is 0-1, and the closer the HI is to 1, the better the state of the pipeline oil transfer pump is. In practical application, a normal operation threshold value can be preset, when the state evaluation result HI of the oil transfer pump is greater than the normal operation threshold value, it is indicated that the oil transfer pipeline can normally operate, and when the state evaluation result HI of the oil transfer pump is less than the normal operation threshold value, it is indicated that the oil transfer pipeline needs to be maintained. For example, assuming that the normal operation threshold is set to 0.75, since the determined status evaluation result HI of the pipeline fuel pump is 0.951 and is greater than 0.75, the fuel pipeline may be normally operated.
In summary, according to the method for evaluating the state of the pipeline oil delivery pump provided by the embodiment of the present invention, the obtained measured values U of each state evaluation parameter can be quantitatively evaluated according to a preset quantitative evaluation algorithm to obtain a quantitative evaluation value set S, and a deviation degree calculation formula V is used to calculate a quantitative evaluation value set S according to the quantitative evaluation value set Si＝|Si-Si'|/Si' determining a deviation between a measured value and an ideal value of each state evaluation parameter, and a penalty factor C for correcting the deviation, and then, based on the penalty factor C and the quantitative evaluation value set S, passing through a state evaluation formulaAnd determining a state evaluation result HI of the pipeline oil transfer pump, and operating or maintaining the oil transfer pipeline according to the state evaluation result HI of the pipeline oil transfer pump. The method for evaluating the state of the pipeline oil delivery pump provided by the embodiment of the invention can quantitatively evaluate the running state of the pipeline oil delivery pump, has higher precision of an evaluation result, and has important guiding significance for running and maintaining the oil delivery pipeline.
Fig. 3 is a schematic structural diagram of a state evaluation device for a pipeline fuel delivery pump according to an embodiment of the present invention, and as shown in fig. 3, the device includes:
an acquisition unit 301 configured to acquire measured values U ═ U of n state evaluation parameters included in the state evaluation parameter set1，U2，...，Ui，...，UnN is an integer greater than 1, UiAnd the measured value of the ith state evaluation parameter is represented, i is greater than or equal to 1 and less than or equal to n, and the n state evaluation parameters included in the state evaluation parameter set are used for evaluating the running state of the pipeline oil transfer pump.
An evaluation unit 302, configured to perform quantitative evaluation on the measured value U of each state evaluation parameter in the state evaluation parameter set according to a preset quantitative evaluation algorithm, and obtain a quantitative evaluation value set S ═ S composed of n quantitative evaluation values1，S2，...，Si，...，Sn}。
A first determining unit 303, configured to determine a deviation degree between the measured value and the ideal value of each of the state evaluation parameters according to the quantitative evaluation value set S by a deviation degree calculation formula, and obtain a deviation degree set V ═ V composed of n deviation degrees1，V2，...，Vi，...，VnThe deviation degree calculation formula is: vi＝|Si-Si'|/Si', wherein, ViFor the deviation of the measured value of the ith state evaluation parameter from the ideal value, SiAnd Si' a quantitative evaluation value and a preset ideal evaluation value of the measured value of the i-th state evaluation parameter, respectively.
A second determining unit 304, configured to determine a penalty factor C according to the set V of deviation degrees by a penalty factor determining formula, where the penalty factor determining formula is:wherein maxV represents taking the maximum value in the deviation set V, and β is a preset reference threshold.
A third determining unit 305, configured to determine a status evaluation result HI of the pipeline oil pump according to the penalty factor C and the quantitative evaluation value set S through a status evaluation formula, where the status evaluation formula is:wherein, aiAnd evaluating the weight of the parameter for the preset ith state.
And the operation and maintenance unit 306 is used for operating or maintaining the oil conveying pipeline according to the state evaluation result HI of the pipeline oil conveying pump.
In summary, the status evaluation device for the pipeline oil delivery pump according to the embodiments of the present invention may perform quantitative evaluation on the obtained measured values U of each status evaluation parameter according to a preset quantitative evaluation algorithm to obtain a quantitative evaluation value set S, and calculate a formula V according to the deviation degree according to the quantitative evaluation value set Si＝|Si-Si'|/Si' determining a deviation between a measured value and an ideal value of each state evaluation parameter, and a penalty factor C for correcting the deviation, and then, based on the penalty factor C and the quantitative evaluation value set S, passing through a state evaluation formulaAnd determining a state evaluation result HI of the pipeline oil transfer pump, and operating or maintaining the oil transfer pipeline according to the state evaluation result HI of the pipeline oil transfer pump. The method for evaluating the state of the pipeline oil delivery pump provided by the embodiment of the invention can quantitatively evaluate the running state of the pipeline oil delivery pump, has higher precision of an evaluation result, and has important guiding significance for running and maintaining the oil delivery pipeline.
Optionally, the state evaluation parameters included in the state evaluation parameter set are: vibration parameters, temperature parameters, performance parameters, leakage parameters, noise parameters, and lubricant parameters.
Optionally, the vibration parameters include drive-end bearing box vibration sub-parameters and non-drive-end bearing box vibration sub-parameters;
the temperature parameters comprise a driving end bearing temperature rising sub parameter and a non-driving end bearing temperature rising sub parameter;
the performance parameters include a head sub-parameter and an efficiency sub-parameter;
the leakage parameters comprise sub-parameters of the leakage state of the mechanical seal at the driving end, the leakage state of the mechanical seal at the non-driving end and sub-parameters of the leakage state of the pump body;
the noise parameter comprises a pump body sound pressure sub-parameter;
the lubrication oil parameters include a drive-end bearing housing lubrication oil status sub-parameter and a non-drive-end bearing housing lubrication oil status sub-parameter.
Optionally, the evaluating unit 302 is further configured to:
detecting the number of state evaluation sub-parameters included in any state evaluation parameter in the state evaluation parameter set;
when the number of the state evaluation sub-parameters included in any state evaluation parameter is 1, determining the quantitative evaluation value of any state evaluation parameter according to a first preset algorithm;
when the number of the state evaluation sub-parameters included in any state evaluation parameter is greater than 1, determining the quantitative evaluation of any state evaluation parameter o according to a second preset algorithm, wherein the second preset algorithm is as follows:wherein S isoIs a quantitative evaluation value of the any state evaluation parameter o, k is the number of state evaluation sub-parameters included in the any state evaluation parameter o, αjFor the jth state evaluation sub-parameter of the any state evaluation parameter o, SojThe quantitative evaluation value of the jth state evaluation sub-parameter in the any state evaluation parameter o is evaluated.
To sum upIn the state evaluation device for the oil delivery pump of the pipeline according to the embodiment of the present invention, the obtained measured values U of the state evaluation parameters can be quantitatively evaluated according to a preset quantitative evaluation algorithm to obtain a quantitative evaluation value set S, and a deviation degree calculation formula V is used to calculate a deviation degree according to the quantitative evaluation value set Si＝|Si-Si'|/Si' determining a deviation between a measured value and an ideal value of each state evaluation parameter, and a penalty factor C for correcting the deviation, and then, based on the penalty factor C and the quantitative evaluation value set S, passing through a state evaluation formulaAnd determining a state evaluation result HI of the pipeline oil transfer pump, and operating or maintaining the oil transfer pipeline according to the state evaluation result HI of the pipeline oil transfer pump. The method for evaluating the state of the pipeline oil delivery pump provided by the embodiment of the invention can quantitatively evaluate the running state of the pipeline oil delivery pump, has higher precision of an evaluation result, and has important guiding significance for running and maintaining the oil delivery pipeline.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A method for evaluating the state of a pipeline oil transfer pump is characterized by comprising the following steps:
acquiring measured values U ═ U of n state evaluation parameters included in the state evaluation parameter set1，U2，...，Ui，...，UnN is an integer greater than 1, UiThe measured value of the ith state evaluation parameter is represented, i is more than or equal to 1 and less than or equal to n, and n state evaluation parameters included in the state evaluation parameter set are used for evaluating the running state of the pipeline oil transfer pump;
according to a preset quantitative evaluation algorithm, carrying out quantitative evaluation on the measured value U of each state evaluation parameter in the state evaluation parameter set to obtain a quantitative evaluation value set S ═ S composed of n quantitative evaluation values1，S2，...，Si，...，Sn}；
Determining the deviation degree between the measured value and the ideal value of each state evaluation parameter according to the quantitative evaluation value set S through a deviation degree calculation formula, and obtaining a deviation degree set V ═ { V } consisting of n deviation degrees1，V2，...，Vi，...，VnThe calculation formula of the deviation degree is as follows: vi＝|Si-Si'|/Si', wherein, ViFor the deviation of the measured value of the ith state evaluation parameter from the ideal value, SiAnd Si' a quantitative evaluation value and a preset ideal evaluation value of a measured value of the ith state evaluation parameter, respectively;
determining a penalty factor C through a penalty factor determination formula according to the deviation set V, wherein the penalty factor determination formula is as follows: wherein maxV represents taking a maximum value in the deviation set V, and β is a preset reference threshold;
according to the penalty factor C and the quantitative evaluation value set S, determining a state evaluation result HI of the pipeline oil transfer pump through a state evaluation formula, wherein the state evaluation formula is as follows:wherein, aiEvaluating the weight of the parameter for the preset ith state;
and operating or maintaining the oil conveying pipeline according to the state evaluation result HI of the pipeline oil conveying pump.
2. The method according to claim 1, wherein the n state evaluation parameters included in the state evaluation parameter set are: vibration parameters, temperature parameters, performance parameters, leakage parameters, noise parameters, and lubricant parameters.
3. The method of claim 2, wherein the vibration parameters comprise drive-end bearing case vibration sub-parameters and non-drive-end bearing case vibration sub-parameters;
the temperature parameters comprise a driving end bearing temperature rising sub parameter and a non-driving end bearing temperature rising sub parameter;
the performance parameters comprise a head sub-parameter and an efficiency sub-parameter;
the leakage parameters comprise sub-parameters of the leakage state of the mechanical seal at the driving end, the leakage state of the mechanical seal at the non-driving end and sub-parameters of the leakage state of the pump body;
the noise parameter comprises a pump body sound pressure sub-parameter;
the lubricating oil parameters comprise a driving-end bearing box lubricating oil state sub-parameter and a non-driving-end bearing box lubricating oil state sub-parameter.
4. The method of claim 3, wherein the shape is evaluated according to a predetermined quantitative evaluation algorithmQuantitatively evaluating the measured value U of each state evaluation parameter in the state evaluation parameter set to obtain a quantitative evaluation value set S ═ S1，S2，...，Si，...，SnAnd (4) the method comprises the following steps:
detecting the number of state evaluation sub-parameters included in any state evaluation parameter in the state evaluation parameter set;
when the number of the state evaluation sub-parameters included in any state evaluation parameter is 1, determining a quantitative evaluation value of any state evaluation parameter according to a first preset algorithm;
when the number of the state evaluation sub-parameters included in any state evaluation parameter is greater than 1, determining the quantitative evaluation of any state evaluation parameter o according to a second preset algorithm, wherein the second preset algorithm is as follows:wherein S isoIs a quantitative evaluation value of the any state evaluation parameter o, k is the number of state evaluation sub-parameters included in the any state evaluation parameter o, αjWeight of the jth state evaluation sub-parameter for said any state evaluation parameter o, SojAnd evaluating the quantitative evaluation value of the jth state evaluation sub-parameter in any state evaluation parameter o.
5. A state evaluation device for a pipeline fuel delivery pump, the device comprising:
an acquisition unit configured to acquire measured values U ═ U of n state evaluation parameters included in the state evaluation parameter set1，U2，...，Ui，...，UnN is an integer greater than 1, UiThe measured value of the ith state evaluation parameter is represented, i is more than or equal to 1 and less than or equal to n, and n state evaluation parameters included in the state evaluation parameter set are used for evaluating the running state of the pipeline oil transfer pump;
an evaluation unit for measuring each state evaluation parameter in the state evaluation parameter set according to a preset quantitative evaluation algorithmThe value U is quantitatively evaluated to obtain a quantitative evaluation value set S ═ S composed of n quantitative evaluation values1，S2，...，Si，...，Sn}；
A first determining unit, configured to determine, according to the quantitative evaluation value set S, a degree of deviation between a measured value and an ideal value of each of the state evaluation parameters by a degree of deviation calculation formula, and obtain a degree of deviation set V ═ { V ═ V composed of n degrees of deviation1，V2，...，Vi，...，VnThe calculation formula of the deviation degree is as follows: vi＝|Si-Si'|/Si', wherein, ViFor the deviation of the measured value of the ith state evaluation parameter from the ideal value, SiAnd Si' a quantitative evaluation value and a preset ideal evaluation value of a measured value of the ith state evaluation parameter, respectively;
a second determining unit, configured to determine a penalty factor C according to the deviation set V through a penalty factor determination formula, where the penalty factor determination formula is: wherein maxV represents the maximum deviation degree in the deviation degree set VValue β is a preset reference threshold;
a third determining unit, configured to determine a state evaluation result HI of the pipeline oil transfer pump according to the penalty factor C and the quantitative evaluation value set S through a state evaluation formula, where the state evaluation formula is:wherein, aiEvaluating the weight of the parameter for the preset ith state;
and the operation maintenance unit is used for operating or maintaining the oil conveying pipeline according to the state evaluation result HI of the pipeline oil conveying pump.
6. The apparatus according to claim 5, wherein the n state evaluation parameters included in the state evaluation parameter set are: vibration parameters, temperature parameters, performance parameters, leakage parameters, noise parameters, and lubricant parameters.
7. The apparatus of claim 6, wherein the vibration parameters comprise a drive-end bearing case vibration sub-parameter and a non-drive-end bearing case vibration sub-parameter;
the temperature parameters comprise a driving end bearing temperature rising sub parameter and a non-driving end bearing temperature rising sub parameter;
the performance parameters comprise a head sub-parameter and an efficiency sub-parameter;
the leakage parameters comprise sub-parameters of the leakage state of the mechanical seal at the driving end, the leakage state of the mechanical seal at the non-driving end and sub-parameters of the leakage state of the pump body;
the noise parameter comprises a pump body sound pressure sub-parameter;
the lubricating oil parameters comprise a driving-end bearing box lubricating oil state sub-parameter and a non-driving-end bearing box lubricating oil state sub-parameter.
8. The apparatus of claim 7, wherein the evaluation unit is further configured to:
detecting the number of state evaluation sub-parameters included in any state evaluation parameter in the state evaluation parameter set;
when the number of the state evaluation sub-parameters included in any state evaluation parameter is 1, determining a quantitative evaluation value of any state evaluation parameter according to a first preset algorithm;
when the number of the state evaluation sub-parameters included in any state evaluation parameter is greater than 1, determining the quantitative evaluation of any state evaluation parameter o according to a second preset algorithm, wherein the second preset algorithm is as follows:wherein S isoIs a quantitative evaluation value of the any state evaluation parameter o, k is the number of state evaluation sub-parameters included in the any state evaluation parameter o, αjWeight of the jth state evaluation sub-parameter for said any state evaluation parameter o, SojAnd evaluating the quantitative evaluation value of the jth state evaluation sub-parameter in any state evaluation parameter o.
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