CN115013088B - Monitoring system for operation of high-pressure fire-resistant oil system - Google Patents
Monitoring system for operation of high-pressure fire-resistant oil system Download PDFInfo
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- CN115013088B CN115013088B CN202210738464.7A CN202210738464A CN115013088B CN 115013088 B CN115013088 B CN 115013088B CN 202210738464 A CN202210738464 A CN 202210738464A CN 115013088 B CN115013088 B CN 115013088B
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- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 128
- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 239000000446 fuel Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 238000012549 training Methods 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000246 remedial effect Effects 0.000 description 2
- 238000013528 artificial neural network Methods 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
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- 238000007637 random forest analysis Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/18—Lubricating arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/14—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to other specific conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/18—Lubricating arrangements
- F01D25/20—Lubricating arrangements using lubrication pumps
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The application provides a monitoring system for the operation of a high-pressure fire-resistant oil system, which comprises: the analog quantity signal input unit of the oil level of the oil tank is used for outputting an analog quantity signal of the oil level of the oil tank; the switching value signal input unit is used for judging whether the oil tank of the high-pressure fire-resistant oil leaks or not and outputting a switching value signal of the oil tank leakage; the switching value signal input unit is used for outputting switching value signals of the oil pump operation based on the oil pump operation state; the oil level descending speed unit is used for outputting the oil level descending speed according to an analog quantity signal of the oil level of the oil tank when the oil tank leaks and the oil pump runs; and the leakage residual time unit is used for outputting leakage residual time based on an analog quantity signal of the oil level of the oil tank, a switching value signal of the oil pump operation and the oil level descending rate when the oil tank leaks and the oil pump is operated. The system can realize real-time monitoring of the leakage rate and the residual time when the high-pressure fire-resistant oil system leaks.
Description
Technical Field
The application relates to the field of intelligent control of high-pressure fire-resistant oil systems of thermal power plants, in particular to a monitoring system for operation of a high-pressure fire-resistant oil system.
Background
In the operation process of the thermal power plant, the leakage problem of the high-pressure fire-resistant oil system can occur, when the oil level of the oil tank of the high-pressure fire-resistant oil is lower than the protection value of the oil pump, the oil pump trips, and then the steam turbine trips, so that the normal operation of the thermal power plant is affected.
In the related art, when the oil level of an oil tank of a high-pressure fire-resistant oil system is lower than a set value, the system generates early warning information, but cannot acquire the current leakage speed and other data. For different leak rates and the remaining time of the leak, the associated staff may take different remedial actions. Therefore, how to obtain the leakage speed and the leakage residual time when the high-pressure fire-resistant oil system leaks is of great significance in ensuring the normal operation of the high-pressure fire-resistant oil system.
Disclosure of Invention
In order to solve the above problems, the present application provides a monitoring system for operation of a high pressure fire resistant oil system, comprising:
The analog quantity signal input unit of the oil level of the oil tank is used for collecting the oil level of the oil tank of the high-pressure fire-resistant oil in real time and outputting an analog quantity signal of the oil level of the oil tank;
The switching value signal input unit is used for judging whether the oil tank of the high-pressure fire-resistant oil leaks or not and outputting a switching value signal of the oil tank leakage;
The switching value signal input unit is used for outputting switching value signals of oil pump operation based on the oil pump operation state of the high-pressure fire-resistant oil;
The oil level descending speed unit is connected with the analog quantity signal input unit of the oil level of the oil tank, the switch quantity signal input unit of the oil tank leakage and the switch quantity signal input unit of the oil pump operation and is used for outputting the oil level descending speed according to the analog quantity signal of the oil level of the oil tank when the oil tank leaks and the oil pump operates;
and the leakage residual time unit is connected with the analog quantity input unit of the oil level of the oil tank, the switching value signal input unit of the oil tank leakage, the switching value signal input unit of the oil pump operation and the oil level descending speed unit and is used for outputting the leakage residual time based on the analog quantity signal of the oil level of the oil tank, the switching value signal of the oil pump operation and the oil level descending speed when the oil tank leaks and the oil pump is operated.
In some embodiments of the present application, the leakage residual time unit includes a first and block, a first alternate switch block, a division block, and a residual time output block, wherein:
The switching value signal input unit of oil tank leakage and the switching value signal input unit of oil pump operation are both connected with the input ends of the first and the second blocks, and the output ends of the first and the second blocks are connected with the EN enabling end of the first two-choice switching block;
the first input end of the first two-choice switching block is a first preset value, and the analog input unit of the oil level of the oil tank is connected with the second input end of the first two-choice switching block;
the output end of the first two-out switching block and the output end of the oil level descending speed unit are connected with the input end of the dividing block, and the output end of the dividing block is connected with the remaining time output block.
As a possible implementation manner, when the number of the oil pumps of the high-pressure fire-resistant oil is multiple, the number of the switching value signal input units of the oil pump operation is multiple; the leakage remaining time unit further includes:
And the output end of the first or the block is connected with the input ends of the first and the block.
In some embodiments of the application, the oil level lowering rate unit includes a first delay block, a second and block, a subtraction block, a second alternative switching block, and a rate output block, wherein:
The switching value signal input unit of oil tank leakage and the switching value signal input unit of oil pump operation are both connected with the input end of the second and block, and the output end of the second and block is connected with the EN enabling end of the second alternative switching block;
The analog quantity signal input unit of the oil level of the oil tank is connected with the input end of the first delay block;
The output end of the first delay block and the analog quantity signal input unit of the oil level of the oil tank are connected with the subtracting block;
the first input end of the second alternative switching block is a second preset value, the output end of the subtracting block is connected with the second input end of the second alternative switching block, and the output end of the second alternative switching block is respectively connected with the speed output block and the dividing block of the leakage residual time unit.
As a possible embodiment, when the number of the oil pumps of the high-pressure fire-resistant oil is plural, the number of the switching value signal input units of the oil pump operation is plural; the oil level lowering rate unit further includes:
And the switching value signal input units of the oil pump operation are connected with the input ends of the second or block, and the output ends of the second or block are connected with the input ends of the second and block.
In some embodiments of the application, the system further comprises:
and the oil pump rotation timing unit is connected with the switching value signal input unit of the oil pump operation and is used for carrying out rotation timing on the oil pump of the high-pressure fire-resistant oil which is currently operated.
In some embodiments of the application, the oil pump rotation timing unit includes:
The oil pump rotation timer is connected with the switching value signal input unit for the operation of the oil pump;
the input end of the second delay block is connected with the switching value signal input unit of the oil pump operation;
And the oil pump rotation reminding block is connected with the output end of the second delay block and is used for carrying out rotation reminding on the oil pump which is currently operated.
As a possible embodiment, when the number of the oil pumps of the high-pressure fire-resistant oil is plural, the number of the switching value signal input units of the oil pump operation is plural; the oil pump rotation timing unit further includes:
and the switching value signal input units of the operation of the oil pumps are connected with the input ends of the third or block, and the output ends of the third or block are respectively connected with the oil pump rotation timer and the input ends of the second delay block.
In some embodiments of the present application, the switching value signal input unit of the oil tank leakage is specifically configured to:
Acquiring the main pipe oil pressure of the high-pressure fire-resistant oil, the oil tank temperature of the high-pressure fire-resistant oil and the oil tank level of the high-pressure fire-resistant oil in real time;
Inputting the main pipe oil pressure of the high-pressure fire-resistant oil, the oil tank temperature of the high-pressure fire-resistant oil and the oil tank level of the high-pressure fire-resistant oil into a preset high-pressure fire-resistant oil leakage prediction model to obtain a prediction result of whether the oil tank of the high-pressure fire-resistant oil leaks or not; the high-pressure fire-resistant oil leakage prediction model is used for learning and obtaining the temperature of the oil tank of the high-pressure fire-resistant oil based on the pressure of the main pipe oil of the high-pressure fire-resistant oil and the oil level of the oil tank of the high-pressure fire-resistant oil, and predicting whether the oil tank of the high-pressure fire-resistant oil leaks or not.
And outputting a switching value signal of the oil tank leakage according to the prediction result.
According to the technical scheme of the application, the oil level falling rate is output through the oil level falling rate unit connected with the oil level analog signal input unit of the oil tank, the oil tank leakage switching value signal input unit and the oil pump operation switching value signal input unit when the oil tank leaks and the oil pump operates, and the leakage residual time is output through the leakage residual time unit connected with the oil level analog signal input unit of the oil tank, the oil tank leakage switching value signal input unit, the oil pump operation switching value signal input unit and the oil level falling rate unit. Therefore, when the high-pressure fire-resistant oil leaks, the leakage rate and the leakage residual time can be monitored in real time, so that related staff can know the leakage state and take solving measures conforming to the current faults so as to ensure the normal operation of the high-pressure fire-resistant oil system.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a block diagram of a monitoring system for operation of a high pressure fire resistant fuel system according to an embodiment of the present application;
FIG. 2 is a graphical representation of various operating parameters during historical operation of a high pressure fire resistant fuel system in accordance with an embodiment of the present application;
FIG. 3 is a schematic diagram of a prediction result of a high-pressure fire-resistant oil prediction model on each operation parameter in a historical operation process of a high-pressure fire-resistant oil system according to an embodiment of the present application;
FIG. 4 is a block diagram of a monitoring system for operation of a high pressure fire resistant fuel system according to an embodiment of the present application;
Fig. 5 is a block diagram of a monitoring system for operation of a further high pressure fire resistant fuel system according to an embodiment of the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
It should be noted that, in the operation process of the thermal power plant, the leakage problem of the high-pressure fire-resistant oil system can occur, when the oil level of the oil tank of the high-pressure fire-resistant oil is lower than the protection value of the oil pump, the oil pump trips, and then the steam turbine trips, thereby affecting the normal operation of the thermal power plant.
In the related art, when the oil level of an oil tank of a high-pressure fire-resistant oil system is lower than a set value, the system generates early warning information, but cannot acquire the current leakage speed and other data. For different leak rates and the remaining time of the leak, the associated staff may take different remedial actions. Therefore, how to obtain the leakage speed and the leakage residual time when the high-pressure fire-resistant oil system leaks is of great significance in ensuring the normal operation of the high-pressure fire-resistant oil system.
In order to solve the problems, the application provides a monitoring system for the operation of a high-pressure fire-resistant oil system.
Fig. 1 is a block diagram of a monitoring system for operation of a high-pressure fire-resistant oil system according to an embodiment of the present application. As shown in fig. 1, the system includes: an analog quantity signal input unit 110 of the tank oil level, a switching quantity signal input unit 120 of the tank leakage, a switching quantity signal input unit 130 of the oil pump operation, an oil level lowering rate unit 140, and a leakage remaining time unit 150. Wherein:
The analog quantity signal input unit 110 of the tank oil level is used for collecting the oil level of the high-pressure fire-resistant oil tank in real time and outputting an analog quantity signal of the tank oil level. And a switching value signal input unit 120 for judging whether the high pressure fire-resistant oil tank is leaked, and outputting a switching value signal of the oil tank leakage. And an oil pump operation switching value signal input unit 130 for outputting an oil pump operation switching value signal based on an oil pump operation state of the high pressure fire resistant oil. The oil level falling rate unit 140 is connected to the analog quantity signal input unit 110 of the oil level of the oil tank, the on-off quantity signal input unit 120 of the oil tank leakage, and the on-off signal input unit 130 of the oil pump operation, and is configured to output the oil level falling rate according to the analog quantity signal of the oil level of the oil tank when the oil tank leaks and the oil pump is operated. The leakage remaining time unit 150 is connected with the analog quantity input unit 110 of the tank oil level, the switching quantity signal input unit 120 of the tank leakage, the switching quantity signal input unit 130 of the oil pump operation, and the oil level falling rate unit 140, and is used for outputting the leakage remaining time based on the analog quantity signal of the tank oil level, the switching quantity signal of the oil pump operation, and the oil level falling rate when the oil tank leaks and the oil pump is operated.
In some embodiments of the present application, the analog signal input unit 110 of the tank oil level may be a sensor mounted on the tank of the high pressure fire resistant oil for collecting the oil level of the tank in real time and outputting an analog signal of the tank oil level. The switching value signal input unit 130 for oil pump operation may be a signal acquisition unit installed on the oil pump of high pressure fire-resistant oil, for acquiring the operation state of the oil pump, for example, the oil pump is in an on state, outputs a high level signal, the oil pump is in an off state, and outputs a low level signal.
In some embodiments of the present application, the switching value signal input unit 120 of the tank leakage is specifically configured to: acquiring the pressure of the main pipe oil of the high-pressure fire-resistant oil, the temperature of the oil tank of the high-pressure fire-resistant oil and the oil level of the oil tank of the high-pressure fire-resistant oil in real time; inputting the main pipe oil pressure of the high-pressure fire-resistant oil, the oil tank temperature of the high-pressure fire-resistant oil and the oil tank level of the high-pressure fire-resistant oil into a preset high-pressure fire-resistant oil leakage prediction model to obtain a prediction result of whether the oil tank of the high-pressure fire-resistant oil leaks or not; the high-pressure fire-resistant oil leakage prediction model is used for learning and obtaining the capability of predicting whether the oil tank of the high-pressure fire-resistant oil leaks or not based on the oil pressure of the main pipe of the high-pressure fire-resistant oil, the oil tank temperature of the high-pressure fire-resistant oil and the oil level of the oil tank of the high-pressure fire-resistant oil. And outputting a switching value signal of oil tank leakage according to the prediction result. For example, if the prediction result is that the oil tank leaks, a high-level signal is output, and if the prediction result is normal, a low-level signal is output.
The training process of the high-pressure fuel leakage resistant prediction model can comprise the following steps: acquiring actual operation data and data in a normal operation state when a high-pressure fire-resistant oil system of a power plant leaks, wherein the actual operation data and the data respectively comprise main pipe oil pressure of the high-pressure fire-resistant oil, oil tank temperature of the high-pressure fire-resistant oil and oil level of the high-pressure fire-resistant oil when the high-pressure fire-resistant oil system leaks, and main pipe oil pressure of the high-pressure fire-resistant oil, oil tank temperature of the high-pressure fire-resistant oil and oil level of the high-pressure fire-resistant oil in the normal operation state; preprocessing the data, including data format change, noise removal and the like; and training the initial high-pressure fire-resistant oil leakage prediction model by taking the processed data as a training set to obtain the trained high-pressure fire-resistant oil leakage prediction model, wherein the initial high-pressure fire-resistant oil leakage prediction model can be built based on one or more of random forests, fully connected neural networks, genetic algorithms and the like.
In addition, the trained high-pressure fire-resistant oil leakage prediction model can be verified through historical data of the operation of the high-pressure fire-resistant oil system. Fig. 2 is a tank level curve of the high-pressure fire-resistant oil, a tank oil temperature curve of the high-pressure fire-resistant oil, and a main pipe oil pressure curve of the high-pressure fire-resistant oil, which are obtained based on historical data, and these data are input into a trained high-pressure fire-resistant oil leakage prediction model to obtain a prediction result shown in fig. 3. The oil level of the oil tank gradually decreases in the range of 18:57:00 to 18:57:30, the oil pressure of the main pipe of the high-pressure fire-resistant oil also decreases along with the detail, the oil temperature of the oil tank is basically kept unchanged, and the leakage occurs in this time. After the data are predicted by the high-pressure fire-resistant oil prediction model, the prediction result of the data in the range of 18:57:00 to 18:57:30 is oil tank leakage, and the oil tank leakage is consistent with the actual working condition.
In some embodiments of the present application, the oil level drop rate unit 140 is configured to calculate the oil level drop rate based on the analog quantity signal of the oil level of the oil tank when the switching quantity signal input unit 120 of the oil tank leakage is a high level signal and the switching quantity signal input unit 130 of the oil pump operation is also a high level signal.
As shown in fig. 1, the leakage remaining time unit 150 may include a first and block 151, a first alternative switching block 152, a division block 153, and a remaining time output block 154. The switching value signal input unit 120 of oil tank leakage and the switching value signal input unit 130 of oil pump operation are connected with the input end 151 of the first and block, and the output end of the first and block 151 is connected with the EN enabling end of the first two-choice switching block 152; the first input end of the first two-choice switching block 152 is a first preset value, and the analog input unit 110 of the oil level of the oil tank is connected with the second input end of the first two-choice switching block 152; the output of the first two-choice switching block 152 and the output of the oil level falling rate unit 140 are both connected to the input of the dividing block 153, and the output of the dividing block 153 is connected to the remaining time output block 154.
That is, when the oil tank leaks and the oil pump is in an operating state, the first and block 151 sends a signal to the EN enable terminal of the first two-by-one regulating block 152, connects the first two-by-one regulating block 152 with the analog signal input unit 110 of the oil level of the oil tank, and divides the analog signal of the oil level by the oil level falling rate to obtain the leakage remaining time.
In addition, when the number of the oil pumps of the high-pressure fire-resistant oil is plural, the number of the switching value signal input units operated by the oil pumps is plural, the leakage residual time unit 150 may further include a first or block 155, the switching value signal input units 130 operated by the plurality of oil pumps are all connected to the input terminal of the first or block 155, and the output terminal of the first or block 155 is connected to the input terminal of the first and block 151.
According to the monitoring system for the operation of the high-pressure fire-resistant oil system, disclosed by the embodiment of the application, the oil level descending speed is output through the oil level descending speed unit connected with the oil level analog signal input unit of the oil tank, the oil tank leaked switching value signal input unit and the oil pump operated switching value signal input unit, when the oil tank leaks and the oil pump is operated, the oil level descending speed is output, and the leakage residual time is output through the leakage residual time unit connected with the oil level analog signal input unit of the oil tank, the oil tank leaked switching value signal input unit, the oil pump operated switching value signal input unit and the oil level descending speed unit. Therefore, when the high-pressure fire-resistant oil leaks, the leakage rate and the leakage residual time can be monitored in real time, so that related staff can know the leakage state and take solving measures conforming to the current faults so as to ensure the normal operation of the high-pressure fire-resistant oil system.
To further describe the monitoring system for operation of the high pressure fire resistant fuel system of the present application, another embodiment of the present application is provided.
Fig. 4 is a block diagram of another monitoring system for operation of a high pressure fire resistant oil system according to an embodiment of the present application. As shown in fig. 4, the system includes: an analog quantity signal input unit 410 of a tank oil level, a switching quantity signal input unit 420 of a tank leakage, a switching quantity signal input unit 430 of an oil pump operation, an oil level lowering rate unit 440, and a leakage remaining time unit 450. The functional structures of the analog signal input unit 410 of the tank oil level, the switching value signal input unit 420 of the tank leakage, the switching value signal input unit 430 of the oil pump operation, and the leakage remaining time unit 450 are the same as those of the above embodiments, and are not repeated here. The oil level lowering rate unit 440 includes a first delay block 441, a second and block 442, a subtraction block 443, a second alternative switching block 444, and a rate output block 445. The switching value signal input unit 420 of the oil tank leakage and the switching value signal input unit 430 of the oil pump operation are both connected with the input end of the second and block 442, and the output end of the second and block 442 is connected with the EN enable end of the second alternative switching block 444; the analog quantity signal input unit 410 of the oil level of the oil tank is connected with the input end of the first delay block 441; the output end of the first delay block 441 and the analog quantity signal input unit 410 of the oil level of the oil tank are connected with the subtracting block 443; the first input end of the second alternative switching block 444 is a second preset value, the output end of the subtracting block 443 is connected to the second input end of the second alternative switching block 444, and the output end of the second alternative switching block 444 is connected to the rate output block 445 and the dividing block 453 of the leakage residual time unit 450, respectively.
The preset time delay duration in the first time delay block 441 may be 1min, so that when the oil tank leaks and the oil pump is in an operating state, the second optional cutting block 444 is connected with the output end of the subtracting block 443, the difference between the current oil tank oil level and the oil tank oil level of the previous 1min is calculated by the subtracting block 443, and the oil level dropping rate is output by the speed output block.
In other embodiments of the present application, when the number of the oil pumps of the high pressure fire resistant oil is plural, the number of the switching value signal input units operated by the oil pumps is plural, and the oil level lowering rate unit 440 may further include a second or block 446, and the switching value signal input units 430 operated by the oil pumps are all connected to the input terminal of the second or block 446, and the output terminal of the second or block 446 is connected to the input terminal of the second and block 442. In addition, the second or block 446 and the second and block 442 may not be included in the oil level lowering rate unit 440, but the first or block and the first and block 451 may be shared with the leakage remaining time unit, that is, the output terminal of the first and block is also connected to the EN terminal of the second alternative switching block 444.
According to the monitoring system for the operation of the high-pressure fire-resistant oil system, the second and the second blocks in the oil level descending speed unit are connected with the second alternative switching block, when the oil tank leaks and the oil pump operates, the oil level descending difference value calculated by the subtracting block is input to the second alternative switching block, so that the descending speed of the oil level of the oil tank when the oil tank of the high-pressure fire-resistant oil leaks is obtained, the oil level descending speed is combined with the leakage residual time unit, and the leakage residual time is obtained, thereby realizing the real-time monitoring of the oil tank leakage speed and the leakage residual time of the high-pressure fire-resistant oil system, enabling related staff to know the leakage state, and adopting the solving measures conforming to the current faults to ensure the normal operation of the high-pressure fire-resistant oil system.
In order to ensure the normal operation of the high-pressure fire-resistant oil system, the oil pump of the high-pressure fire-resistant oil needs to be rotated on time, and therefore, the application provides a further embodiment.
Fig. 5 is a block diagram of a monitoring system for operation of a further high pressure fire resistant fuel system according to an embodiment of the present application. As shown in fig. 5, the system includes: an analog quantity signal input unit 510 of the tank oil level, a switching quantity signal input unit 520 of the tank leakage, a switching quantity signal input unit 530 of the oil pump operation, an oil level lowering rate unit 540, a leakage remaining time unit 550, and an oil pump rotation timing unit 560. The functional structures of the analog quantity signal input unit 510 of the oil level of the oil tank, the switching quantity signal input unit 520 of the oil tank leakage, the switching quantity signal input unit 530 of the oil pump operation, the oil level falling rate unit 540, and the leakage remaining time unit 550 are identical to those of the above embodiments, and are not repeated herein.
The oil pump rotation timing unit 560 is connected with the oil pump operation switching value signal input unit 530, and is used for performing rotation timing on the currently operated high-pressure fire-resistant oil pump, for example, the oil pump rotation timing unit 560 can output rotation countdown according to the oil pump operation switching value signal, so that periodic rotation monitoring of the high-pressure fire-resistant oil pump is realized, and related staff can be timely reminded to perform replacement operation of the oil pump.
As shown in fig. 5, the oil pump rotation timing unit 560 may include an oil pump rotation timer 561, a second delay block 562, and an oil pump rotation reminder block 563. Wherein the oil pump rotation timer 561 is connected with the switching value signal input unit 530 for the oil pump operation; the input end of the second delay block 562 is connected with the switching value signal input unit 530 for the operation of the oil pump; the oil pump rotation reminding block 563 is connected with the output end of the second delay block 562, and is used for carrying out rotation reminding on the currently running oil pump. As an example, if the oil pump rotation period of the high pressure fire resistant oil is 15 days, the oil pump rotation counter 561 may be set to count down for 15 days, and after the oil pump is operated, the oil pump rotation counter 561 is triggered to start counting down and displaying, and meanwhile, the delay time of the second delay block 562 may be set to be 15 days, so after the oil pump is started for 15 days, the second delay block 562 outputs a signal to enable the oil pump rotation reminding block 563 to output reminding information or early warning information of the oil pump rotation.
In other embodiments of the present application, when the number of the oil pumps of the high pressure fire resistant oil is plural, the oil pump rotation timing unit 560 may further include a third or block 564, and the plurality of oil pump operation switching value signal input units 530 are connected to the input terminals of the third or block 564, and the output terminals of the third or block 564 are connected to the input terminals of the oil pump rotation timer 561 and the second delay block 562, respectively.
According to the monitoring system for the operation of the high-pressure fire-resistant oil system, provided by the embodiment of the application, the oil pump rotation timing unit is introduced to monitor the oil pump rotation of the high-pressure fire-resistant oil at regular intervals, and the related staff is timely reminded to replace the oil pump of the high-pressure fire-resistant oil at regular intervals, so that the workload of the staff on the system monitoring is greatly reduced, and the normal operation of the high-pressure fire-resistant oil system is further ensured.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (7)
1. A monitoring system for operation of a high pressure fire resistant fuel system, comprising:
The analog quantity signal input unit of the oil level of the oil tank is used for collecting the oil level of the oil tank of the high-pressure fire-resistant oil in real time and outputting an analog quantity signal of the oil level of the oil tank;
The switching value signal input unit that the oil tank was revealed is used for judging whether the oil tank of high pressure fire-resistant oil appears revealing to the switching value signal that the output oil tank was revealed, the switching value signal input unit that the oil tank was revealed is specifically used for:
Acquiring the main pipe oil pressure of the high-pressure fire-resistant oil, the oil tank temperature of the high-pressure fire-resistant oil and the oil tank level of the high-pressure fire-resistant oil in real time;
Inputting the main pipe oil pressure of the high-pressure fire-resistant oil, the oil tank temperature of the high-pressure fire-resistant oil and the oil tank level of the high-pressure fire-resistant oil into a preset high-pressure fire-resistant oil leakage prediction model to obtain a prediction result of whether the oil tank of the high-pressure fire-resistant oil leaks or not; the high-pressure fire-resistant oil leakage prediction model is used for obtaining the oil pressure of a main pipe of the high-pressure fire-resistant oil, the oil tank temperature of the high-pressure fire-resistant oil and the oil level of the oil tank of the high-pressure fire-resistant oil through learning, and predicting whether the oil tank of the high-pressure fire-resistant oil leaks or not;
outputting a switching value signal of the oil tank leakage according to the prediction result;
The switching value signal input unit is used for outputting switching value signals of oil pump operation based on the oil pump operation state of the high-pressure fire-resistant oil;
The oil level descending speed unit is connected with the analog quantity signal input unit of the oil level of the oil tank, the switch quantity signal input unit of the oil tank leakage and the switch signal input unit of the oil pump operation and is used for outputting the oil level descending speed according to the analog quantity signal of the oil level of the oil tank when the oil tank leaks and the oil pump operates;
The leakage residual time unit is connected with the analog quantity input unit of the oil level of the oil tank, the switching value signal input unit of the oil tank leakage, the switching value signal input unit of the oil pump operation and the oil level descending speed unit and is used for outputting leakage residual time based on the analog quantity signal of the oil level of the oil tank, the switching value signal of the oil pump operation and the oil level descending speed when the oil tank leaks and the oil pump is operated; the leakage residual time unit comprises a first AND block, a first alternative switching block, a division block and a residual time output block, wherein:
The switching value signal input unit of oil tank leakage and the switching value signal input unit of oil pump operation are both connected with the input ends of the first and the second blocks, and the output ends of the first and the second blocks are connected with the EN enabling end of the first two-choice switching block;
the first input end of the first two-choice switching block is a first preset value, and the analog input unit of the oil level of the oil tank is connected with the second input end of the first two-choice switching block;
the output end of the first two-out switching block and the output end of the oil level descending speed unit are connected with the input end of the dividing block, and the output end of the dividing block is connected with the remaining time output block.
2. The system according to claim 1, wherein when the number of the oil pumps of the high-pressure fire-resistant oil is plural, the number of the switching value signal input units of the oil pump operation is plural; the leakage remaining time unit further includes:
And the output end of the first or the block is connected with the input ends of the first and the block.
3. The system of claim 1, wherein the oil level lowering rate unit comprises a first delay block, a second and block, a subtraction block, a second alternative switching block, and a rate output block, wherein:
The switching value signal input unit of oil tank leakage and the switching value signal input unit of oil pump operation are both connected with the input end of the second and block, and the output end of the second and block is connected with the EN enabling end of the second alternative switching block;
The analog quantity signal input unit of the oil level of the oil tank is connected with the input end of the first delay block;
The output end of the first delay block and the analog quantity signal input unit of the oil level of the oil tank are connected with the subtracting block;
the first input end of the second alternative switching block is a second preset value, the output end of the subtracting block is connected with the second input end of the second alternative switching block, and the output end of the second alternative switching block is respectively connected with the speed output block and the dividing block of the leakage residual time unit.
4. A system according to claim 3, wherein when the number of the oil pumps of the high-pressure fire-resistant oil is plural, the number of the switching value signal input units of the oil pump operation is plural; the oil level lowering rate unit further includes:
And the switching value signal input units of the oil pump operation are connected with the input ends of the second or block, and the output ends of the second or block are connected with the input ends of the second and block.
5. The system of claim 1, further comprising:
and the oil pump rotation timing unit is connected with the switching value signal input unit of the oil pump operation and is used for carrying out rotation timing on the oil pump of the high-pressure fire-resistant oil which is currently operated.
6. The system of claim 5, wherein the oil pump rotation timing unit comprises:
The oil pump rotation timer is connected with the switching value signal input unit for the operation of the oil pump;
the input end of the second delay block is connected with the switching value signal input unit of the oil pump operation;
And the oil pump rotation reminding block is connected with the output end of the second delay block and is used for carrying out rotation reminding on the oil pump which is currently operated.
7. The system according to claim 6, wherein when the number of the oil pumps of the high-pressure fire-resistant oil is plural, the number of the switching value signal input units of the oil pump operation is plural; the oil pump rotation timing unit further includes:
and the switching value signal input units of the operation of the oil pumps are connected with the input ends of the third or block, and the output ends of the third or block are respectively connected with the oil pump rotation timer and the input ends of the second delay block.
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