CN115013088A - 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
- Publication number
- CN115013088A CN115013088A CN202210738464.7A CN202210738464A CN115013088A CN 115013088 A CN115013088 A CN 115013088A CN 202210738464 A CN202210738464 A CN 202210738464A CN 115013088 A CN115013088 A CN 115013088A
- Authority
- CN
- China
- Prior art keywords
- oil
- block
- signal input
- resistant
- switching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 106
- 238000012544 monitoring process Methods 0.000 title claims abstract description 20
- 230000009467 reduction Effects 0.000 claims abstract description 15
- 239000000446 fuel Substances 0.000 claims description 25
- 230000003247 decreasing effect Effects 0.000 description 12
- 239000002828 fuel tank Substances 0.000 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
- 230000006870 function Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000246 remedial effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000013528 artificial neural network Methods 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007637 random forest analysis Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The application provides a monitored control system of high pressure fire resistant oil system operation includes: the oil level analog quantity signal input unit is used for outputting an analog quantity signal of the oil level of the oil tank; the switching value signal input unit for oil tank leakage 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; an oil pump operation switching amount signal input unit for outputting a switching amount signal of the oil pump operation based on an oil pump operation state; the oil level reduction rate unit is used for outputting the oil level reduction rate according to the 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 the leakage residual time based on the analog quantity signal of the oil level of the oil tank, the switching value signal of the operation of the oil pump and the oil level descending rate when the oil tank leaks and the oil pump operates. 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 the high-pressure fire-resistant oil systems.
Background
The problem of leakage of a high-pressure fire-resistant oil system can occur in the operation process of a thermal power plant, when the oil tank oil level of the high-pressure fire-resistant oil is lower than the oil pump protection value, the oil pump trips, and then the steam turbine trips, so that the normal operation of thermal power generation is influenced.
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 data such as the current leakage speed. For different leak rates and the time remaining for the leak, the associated personnel 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 has important significance for 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 tank is used for acquiring the oil level of the high-pressure fire-resistant oil tank in real time and outputting an analog quantity signal of the oil level of the oil tank;
the switching value signal input unit for oil tank leakage 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;
an oil pump operation switching value signal input unit for outputting an oil pump operation switching value signal based on the oil pump operation state of the high-pressure fire-resistant oil;
the oil level reduction rate unit is connected with the analog quantity signal input unit of the oil tank oil level, the switching value signal input unit leaked by the oil tank and the switching value signal input unit operated by the oil pump and is used for outputting the oil level reduction rate according to the analog quantity signal of the oil tank oil level when the oil tank leaks and the oil pump operates;
and the leakage residual time unit 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 reduction rate when the oil pump operates and the oil tank leaks.
In some embodiments of the present application, the leaked remaining time unit includes a first and block, a first one-out-of-one switching block, a division block, and a remaining time output block, wherein:
the switching value signal input unit leaked from the oil tank and the switching value signal input unit operated by the oil pump are both connected with the input end of the first and block, and the output end of the first and block is connected with the EN enabling end of the first alternative switching block;
a first input end of the first one-of-two switching block is a first preset value, and an analog quantity input unit of the oil level of the oil tank is connected with a second input end of the first one-of-two switching block;
the output end of the first alternative switching block and the output end of the oil level descending rate unit are both connected with the input end of the division block, and the output end of the division 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 plural, the number of the switching value signal input units for the operation of the oil pumps is plural; the leakage remaining time unit further includes:
the switching value signal input units for the operation of the oil pumps are connected with the input end of the first or block, and the output end of the first or block is connected with the input end of the first or block.
In some embodiments of the present application, the oil level lowering rate unit includes a first delay block, a second and block, a subtraction block, a second one-of-one switching block, and a rate output block, wherein:
the switching value signal input unit leaked from the oil tank and the switching value signal input unit operated by the oil pump 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 both connected with the subtraction block;
the first input end of the second one-of-two switching block is a second preset value, the output end of the subtraction block is connected with the second input end of the second one-of-two switching block, and the output end of the second one-of-two switching block is respectively connected with the rate output block and the division block of the leakage remaining 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 amount signal input units for the operation of the oil pumps is plural; the oil level lowering rate unit further includes:
and the switching value signal input units for the operation of the oil pumps are connected with the input end of the second or block, and the output end of the second or block is connected with the input end of the second or block.
In some embodiments of the present application, the system further comprises:
and the oil pump alternate timing unit is connected with the switching value signal input unit for the operation of the oil pump and is used for alternately timing the currently-operated high-pressure fire-resistant oil pump.
In some embodiments of the present application, the oil pump rotation timing unit includes:
the oil pump alternation timer is connected with a switching value signal input unit for the operation of the oil pump;
the input end of the second delay block is connected with a switching value signal input unit for the operation of the oil pump;
the oil pump is used for reminding the user in turn, and the oil pump is connected with the output end of the second delay block and used for reminding the user in turn of the currently running oil pump.
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 amount signal input units for the operation of the oil pumps is plural; the oil pump rotation timing unit further comprises:
and the output end of the third or block is respectively connected with the input end of the second delay block and the oil pump alternation timer.
In some embodiments of the present application, the tank leakage switching value signal input unit is specifically configured to:
acquiring 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 tank level of the high-pressure fire-resistant oil in real time;
inputting 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 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 is leaked or not; the high-pressure fire-resistant oil leakage prediction model learns the oil tank temperature of the high-pressure fire-resistant oil and the oil tank level of the high-pressure fire-resistant oil based on the main pipe oil pressure of the high-pressure fire-resistant oil, and predicts the leakage capacity of the high-pressure fire-resistant oil tank.
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 reduction rate is output through the oil level reduction rate unit connected with the analog signal input unit of the oil level of the oil tank, the switching value signal input unit leaked by the oil tank and the switching value signal input unit operated by the oil pump, and the leakage residual time is output through the leakage residual time unit connected with the analog signal input unit of the oil level of the oil tank, the switching value signal input unit leaked by the oil tank, the switching value signal input unit operated by the oil pump and the oil level reduction rate unit. Therefore, when the high-pressure fire-resistant oil leaks, the system can monitor the leakage rate and the leakage residual time in real time, so that related workers can know the leakage state and take measures according with the current fault to ensure the normal operation of the high-pressure fire-resistant oil system.
Additional aspects and advantages of the present 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 present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
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;
FIG. 2 is a graphical representation of various operating parameters during historical operation of the high pressure fuel-resistant system in an embodiment of the present application;
fig. 3 is a schematic diagram of a prediction result of the high-pressure fuel-resistant oil prediction model in the embodiment of the application on each operation parameter in the historical operation process of the high-pressure fuel-resistant oil system;
fig. 4 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;
fig. 5 is a block diagram of a monitoring system for operation of another high-pressure fire-resistant oil system according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
It should be noted that, during the operation of the thermal power plant, the leakage problem of the high-pressure fire-resistant oil system may occur, and 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 a fuel tank of a high-pressure fire-resistant oil system is lower than a set value, the system generates early warning information, but cannot acquire data such as the current leakage speed. For different leak rates and the time remaining for the leak, the associated personnel 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 has important significance for 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 disclosure. As shown in fig. 1, the system includes: an analog quantity signal input unit 110 for a tank oil level, a switching quantity signal input unit 120 for a tank leakage, a switching quantity signal input unit 130 for an oil pump operation, an oil level lowering rate unit 140, and a leakage remaining time unit 150. Wherein:
the tank level analog quantity signal input unit 110 is used for acquiring the oil level of the high-pressure fire-resistant oil tank in real time and outputting an analog quantity signal of the oil level of the oil tank. And a tank leakage switching value signal input unit 120, configured to determine whether a tank of the high-pressure fire-resistant oil leaks, and output a tank leakage switching value signal. And an on-off signal input unit 130 for an oil pump operation for outputting an on-off signal for the oil pump operation based on the oil pump operation state of the high-pressure fire-resistant oil. The oil level decreasing rate unit 140 is connected to the tank oil level analog quantity signal input unit 110, the tank leakage switching quantity signal input unit 120, and the oil pump operation switching signal input unit 130, and outputs an oil level decreasing rate according to the tank oil level analog quantity signal when the tank leaks and the oil pump operates. The remaining leakage time unit 150 is connected to the tank level analog quantity input unit 110, the tank leakage switching quantity signal input unit 120, the oil pump operation switching quantity signal input unit 130, and the oil level decreasing rate unit 140, and outputs the remaining leakage time based on the tank level analog quantity signal, the oil pump operation switching quantity signal, and the oil level decreasing rate when the tank leaks and the oil pump operates.
In some embodiments of the present application, the analog quantity signal input unit 110 for the fuel level of the fuel tank may be a sensor installed on the fuel tank of the high-pressure fire-resistant oil for collecting the fuel level of the fuel tank in real time and outputting the analog quantity signal for the fuel level of the fuel tank. The switching value signal input unit 130 for the operation of the oil pump may be a signal acquisition unit installed on the oil pump of the high-pressure fire-resistant oil for acquiring the operation state of the oil pump, for example, the oil pump is in an on state and outputs a high level signal, and the oil pump is in an off state and outputs a low level signal.
In some embodiments of the present application, the tank leakage switching value signal input unit 120 is specifically configured to: acquiring 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 tank level of the high-pressure fire-resistant oil in real time; inputting 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 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 is leaked or not; the high-pressure fuel-resistant oil leakage prediction model learns the oil pressure of a main pipe of the high-pressure fuel-resistant oil, the oil tank temperature of the high-pressure fuel-resistant oil and the oil tank level of the high-pressure fuel-resistant oil, and predicts the leakage capacity of the oil tank of the high-pressure fuel-resistant oil. And outputting a switching value signal of the oil tank leakage according to the prediction result. For example, if the prediction result is that the fuel 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-resistant leakage prediction model can comprise the following processes: acquiring actual operation data and data in a normal operation state of a high-pressure fire-resistant oil system of a power plant when leakage occurs, wherein the actual operation data and the data in the normal operation state respectively comprise 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 when leakage occurs, and 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 the normal operation state; preprocessing the data, including data format change, noise removal and the like; and taking the processed data as a training set, and training the initial high-pressure fuel-resistant oil leakage prediction model to obtain the trained high-pressure fuel-resistant oil leakage prediction model, wherein the initial high-pressure fuel-resistant oil leakage prediction model can be constructed based on one or a mixture of more of a random forest, a fully-connected neural network, a genetic algorithm and the like.
In addition, the trained high-pressure fuel-resistant oil leakage prediction model can be verified through historical data of the operation of the high-pressure fuel-resistant oil system. Fig. 2 is a tank liquid 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 the data are input into a trained high-pressure fire-resistant oil leakage prediction model to obtain a prediction result shown in fig. 3. Wherein, the oil level of the oil tank is gradually reduced in the range of 18:57:00 to 18:57:30, the oil pressure of a main pipe of high-pressure fire-resistant oil is also reduced along with the detail, the oil temperature of the oil tank is basically kept unchanged, and the oil temperature is the working condition of leakage. 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 that the fuel tank leaks, and the fuel tank leakage is consistent with the actual working condition.
In some embodiments of the present application, the oil level decreasing rate unit 140 is configured to calculate the oil level decreasing rate based on the analog quantity signal of the oil level of the oil tank when the switching amount signal input unit 120 of the tank leakage is a high level signal while the switching amount 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 one-of-two switching block 152, a division block 153, and a remaining time output block 154. The switching value signal input unit 120 for oil tank leakage and the switching value signal input unit 130 for oil pump operation are both 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 enable end of the first alternative switching block 152; a first input end of the first one-of-two switching block 152 is a first preset value, and the analog quantity input unit 110 of the oil tank level is connected with a second input end of the first one-of-two switching block 152; the output end of the first alternative switching block 152 and the output end of the oil level lowering rate unit 140 are both connected to the input end of a division block 153, and the output end of the division block 153 is connected to a 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 alternative adjusting block 152, so that the first alternative adjusting block 152 is connected to the analog quantity signal input unit 110 of the oil level of the oil tank, and the analog quantity signal of the oil level is divided by the oil level decreasing rate to obtain the remaining leakage time.
In addition, when the number of the oil pumps of the high-pressure fire-resistant oil is plural and the number of the switching amount signal input units for the operation of the oil pumps is plural, the leakage remaining time unit 150 may further include a first or block 155, the switching amount signal input units 130 for the operation of the plural oil pumps are all connected to an input terminal of the first or block 155, and an output terminal of the first or block 155 is connected to an input terminal of the first and block 151.
According to the monitoring system for the operation of the high-pressure fire-resistant oil system, the oil level reduction rate unit is connected with the analog signal input unit of the oil level of the oil tank, the switching value signal input unit of the oil tank leakage and the switching value signal input unit of the oil pump operation, the oil level reduction rate is output when the oil tank leaks and the oil pump operates, and the leakage residual time unit is connected with the analog signal 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 reduction rate unit to output the leakage residual time. Therefore, when the high-pressure fire-resistant oil leaks, the system can monitor the leakage rate and the leakage residual time in real time, so that related workers can know the leakage state and take measures according with the current fault to ensure the normal operation of the high-pressure fire-resistant oil system.
For further description of the system for monitoring the operation of the high pressure fuel-resistant oil system of the present application, another embodiment 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 the oil level of the oil tank, a switching quantity signal input unit 420 of the leakage of the oil tank, a switching quantity signal input unit 430 of the operation of the oil pump, an oil level decreasing rate unit 440 and a leakage remaining time unit 450. The functional structures of the analog quantity signal input unit 410 of the oil level of the oil tank, the switching quantity signal input unit 420 of the oil tank leakage, the switching quantity signal input unit 430 of the oil pump operation and the leakage remaining time unit 450 are the same as those of the above-mentioned embodiments, and are not described again here. The oil level drop 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 input unit 420 for the switching value signal leaked from the oil tank and the input unit 430 for the switching value signal 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 tank level 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 both connected with a subtraction block 443; the first input of the second one-out switching block 444 is a second preset value, the output of the subtraction block 443 is connected to the second input of the second one-out switching block 444, and the outputs of the second one-out switching block 444 are respectively connected to the rate output block 445 and the division block 453 of the leakage remaining time unit 450.
The preset delay time in the first delay block 441 may be 1min, so that when the oil tank leaks and the oil pump is in an operating state, the second alternative cutoff block 444 is connected to the output end of the subtraction block 443, the difference between the current oil level of the oil tank and the oil level of the oil tank in the previous 1min is calculated through the subtraction block 443, and the speed output block outputs the oil level reduction rate.
In other embodiments of the present application, when the number of the high-pressure fire-resistant oil pumps is plural, and the number of the switching amount signal input units for the oil pump operation is plural, the oil level decreasing rate unit 440 may further include a second or block 446, the plurality of the switching amount signal input units 430 for the oil pump operation are all connected to an input terminal of the second or block 446, and an output terminal of the second or block 446 is connected to an input terminal of the second and block 442. In addition, the oil level decreasing rate unit 440 may not include the second or block 446 and the second and block 442, but share the first or block and the first and block 451 with the leakage remaining time unit, i.e., 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 blocks in the oil level descending rate 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 obtained by calculation of the subtraction block is input into the second alternative switching block, so that the descending rate 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 rate is combined with the leakage residual time unit, and the leakage residual time is obtained, so that the real-time monitoring of the leakage rate and the leakage residual time of the oil tank of the high-pressure fire-resistant oil system is realized, related workers can know the leakage state, and take the solution according with the current fault, so that the normal operation of the high-pressure fire-resistant oil system is ensured.
In order to ensure the normal operation of the high-pressure fuel-resistant oil system, the oil pump of the high-pressure fuel-resistant oil needs to be rotated according to the period, and a further embodiment is provided for the application.
Fig. 5 is a block diagram of a monitoring system for operation of another high-pressure fire-resistant oil 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 oil level of the oil tank, a switching quantity signal input unit 520 of the leakage of the oil tank, a switching quantity signal input unit 530 of the operation of the oil pump, an oil level decreasing 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 decreasing rate unit 540 and the leakage remaining time unit 550 are the same as those of the above embodiments, and are not described again here.
The oil pump rotation timing unit 560 is connected to the oil pump operation switching value signal input unit 530, and is configured to perform rotation timing on the currently-operating high-pressure fire-resistant oil pump, for example, the oil pump rotation timing unit 560 may output rotation countdown according to the oil pump operation switching value signal, so as to realize regular rotation monitoring of the high-pressure fire-resistant oil pump, and also to prompt relevant staff to perform replacement operation of the oil pump in time.
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 reminding block 563. Wherein, the oil pump rotation timer 561 is connected with the switching value signal input unit 530 of 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 to the output end of the second delay block 562, and is used for performing 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, after the oil pump runs, the oil pump rotation counter 561 is triggered to start counting down and display, and meanwhile, the delay duration of the second delay block 562 may be set to 15 days, so that the second delay block 562 outputs a signal after the oil pump is started for 15 days, so that the oil pump rotation reminding block 563 outputs reminding information or early warning information of the oil pump rotation.
In other embodiments of the present application, when the number of the high-pressure fire-resistant oil pumps is multiple, and the number of the switching value signal input units for the operation of the oil pumps is multiple, the oil pump rotation timing unit 560 may further include a third or block 564, the switching value signal input units 530 for the operation of the multiple oil pumps are all connected to the input end of the third or block 564, and the output end of the third or block 564 is connected to the input ends 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, the timing unit is rotated by introducing the oil pump, so that the oil pump of the high-pressure fire-resistant oil is monitored periodically, and relevant workers are reminded to replace the oil pump of the high-pressure fire-resistant oil periodically, the workload of the workers on monitoring the system can be greatly reduced, and the normal operation of the high-pressure fire-resistant oil system can be further ensured.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," 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 application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (9)
1. A system for monitoring operation of a high pressure fire resistant oil system, comprising:
the analog quantity signal input unit of the oil tank oil level is used for acquiring the oil level of the high-pressure fire-resistant oil tank in real time and outputting an analog quantity signal of the oil level of the oil tank;
the switching value signal input unit for oil tank leakage 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;
an on-off signal input unit for an oil pump operation for outputting an on-off signal for the oil pump operation based on an oil pump operation state of the high-pressure fire-resistant oil;
the oil level reduction rate unit is connected with the analog quantity signal input unit of the oil tank, the switching value signal input unit leaked by the oil tank and the switching signal input unit operated by the oil pump and is used for outputting the oil level reduction rate according to the analog quantity signal of the oil tank when the oil tank leaks and the oil pump operates;
and the leakage residual time unit 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 reduction rate when the oil pump operates and the oil tank leaks.
2. The system of claim 1, wherein the leaky remaining time unit comprises a first and block, a first one-of-two switching block, a division block, and a remaining time output block, wherein:
the switching value signal input unit leaked from the oil tank and the switching value signal input unit operated by the oil pump are both connected with the input end of the first and block, and the output end of the first and block is connected with the EN enabling end of the first alternative switching block;
a first input end of the first one-of-two switching block is a first preset value, and an analog quantity input unit of the oil level of the oil tank is connected with a second input end of the first one-of-two switching block;
the output end of the first alternative switching block and the output end of the oil level descending rate unit are both connected with the input end of the division block, and the output end of the division block is connected with the remaining time output block.
3. The system according to claim 2, wherein when the number of the oil pumps of the high-pressure fire-resistant oil is plural, the number of the switching amount signal input units of the oil pump operation is plural; the leakage remaining time unit further includes:
the switching value signal input units for the operation of the oil pumps are connected with the input end of the first or block, and the output end of the first or block is connected with the input end of the first or block.
4. The system of claim 2, wherein the oil level lowering rate unit comprises a first delay block, a second and block, a subtraction block, a second one-of-two switching block, and a rate output block, wherein:
the switching value signal input unit leaked from the oil tank and the switching value signal input unit operated by the oil pump 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 both connected with the subtraction block;
the first input end of the second one-of-two switching block is a second preset value, the output end of the subtraction block is connected with the second input end of the second one-of-two switching block, and the output end of the second one-of-two switching block is respectively connected with the rate output block and the division block of the leakage remaining time unit.
5. The system according to claim 4, wherein when the number of the oil pumps of the high-pressure fire-resistant oil is plural, the number of the switching amount 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 for the operation of the oil pumps are connected with the input end of the second or block, and the output end of the second or block is connected with the input end of the second or block.
6. The system of claim 1, further comprising:
and the oil pump alternate timing unit is connected with the switching value signal input unit for the operation of the oil pump and is used for alternately timing the currently-operated high-pressure fire-resistant oil pump.
7. The system of claim 6, wherein the oil pump rotation timing unit comprises:
the oil pump alternation timer is connected with a switching value signal input unit for the operation of the oil pump;
the input end of the second delay block is connected with a switching value signal input unit for the operation of the oil pump;
the oil pump is used for reminding the user in turn, and the oil pump is connected with the output end of the second delay block and used for reminding the user in turn of the currently running oil pump.
8. The system according to claim 7, wherein when the number of the oil pumps of the high-pressure fire-resistant oil is plural, the number of the switching amount signal input units of the oil pump operation is plural; the oil pump rotation timing unit further comprises:
and the output end of the third or block is respectively connected with the input end of the second delay block and the oil pump alternation timer.
9. The system of claim 1, wherein the tank leak switching value signal input unit is specifically configured to:
acquiring the pressure of the main pipe oil of the high-pressure fire-resistant oil, the temperature of an 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 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 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 is leaked or not; the high-pressure fuel-resistant oil leakage prediction model learns to obtain the capacity of predicting whether the high-pressure fuel-resistant oil tank leaks or not based on the oil pressure of the main pipe of the high-pressure fuel-resistant oil, the temperature of the high-pressure fuel-resistant oil tank and the oil level of the high-pressure fuel-resistant oil tank;
and outputting a switching value signal of the oil tank leakage according to the prediction result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210738464.7A CN115013088B (en) | 2022-06-27 | 2022-06-27 | Monitoring system for operation of high-pressure fire-resistant oil system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210738464.7A CN115013088B (en) | 2022-06-27 | 2022-06-27 | Monitoring system for operation of high-pressure fire-resistant oil system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115013088A true CN115013088A (en) | 2022-09-06 |
| CN115013088B CN115013088B (en) | 2024-04-30 |
Family
ID=83076692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210738464.7A Active CN115013088B (en) | 2022-06-27 | 2022-06-27 | Monitoring system for operation of high-pressure fire-resistant oil system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115013088B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0367876A (en) * | 1989-08-07 | 1991-03-22 | Mitsubishi Electric Corp | Control device of hydraulic elevator |
| JPH1024998A (en) * | 1996-07-11 | 1998-01-27 | Tatsuno Co Ltd | Oil feeding apparatus |
| CN102538890A (en) * | 2011-12-31 | 2012-07-04 | 北京中科微电子技术有限公司 | Method and device for obtaining course continuation mileage of motor vehicle |
| CN104047926A (en) * | 2014-06-20 | 2014-09-17 | 济钢集团有限公司 | Pump station oil leakage prevention and control method and system of hydraulic system and lubrication system |
| CN104061976A (en) * | 2014-07-14 | 2014-09-24 | 济钢集团有限公司 | Dynamic monitoring device and method for liquid level of oil tank of hydraulic system |
| CN108120485A (en) * | 2016-11-28 | 2018-06-05 | 中国科学院沈阳自动化研究所 | A kind of ocean robot fuel tank fuel quantity measuring device and method |
| CN109573934A (en) * | 2019-01-30 | 2019-04-05 | 北京樟木实业发展有限公司 | Engineering truck oil management method and system |
| CN110674582A (en) * | 2019-09-29 | 2020-01-10 | 中仿智能科技（上海）股份有限公司 | Simulation model and method for simulating aircraft fuel system |
| CN212079783U (en) * | 2020-04-30 | 2020-12-04 | 广东粤电新会发电有限公司 | EH oil tank oil leak early warning device |
| CN113251007A (en) * | 2021-04-25 | 2021-08-13 | 河北晟华环保技术工程有限公司 | Waste heat generator set hydraulic system and oil supply method thereof |
| CN114576542A (en) * | 2022-03-15 | 2022-06-03 | 西安热工研究院有限公司 | Threshold self-learning oil filter pipeline leakage detection and protection device and method |
-
2022
- 2022-06-27 CN CN202210738464.7A patent/CN115013088B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0367876A (en) * | 1989-08-07 | 1991-03-22 | Mitsubishi Electric Corp | Control device of hydraulic elevator |
| JPH1024998A (en) * | 1996-07-11 | 1998-01-27 | Tatsuno Co Ltd | Oil feeding apparatus |
| CN102538890A (en) * | 2011-12-31 | 2012-07-04 | 北京中科微电子技术有限公司 | Method and device for obtaining course continuation mileage of motor vehicle |
| CN104047926A (en) * | 2014-06-20 | 2014-09-17 | 济钢集团有限公司 | Pump station oil leakage prevention and control method and system of hydraulic system and lubrication system |
| CN104061976A (en) * | 2014-07-14 | 2014-09-24 | 济钢集团有限公司 | Dynamic monitoring device and method for liquid level of oil tank of hydraulic system |
| CN108120485A (en) * | 2016-11-28 | 2018-06-05 | 中国科学院沈阳自动化研究所 | A kind of ocean robot fuel tank fuel quantity measuring device and method |
| CN109573934A (en) * | 2019-01-30 | 2019-04-05 | 北京樟木实业发展有限公司 | Engineering truck oil management method and system |
| CN110674582A (en) * | 2019-09-29 | 2020-01-10 | 中仿智能科技（上海）股份有限公司 | Simulation model and method for simulating aircraft fuel system |
| CN212079783U (en) * | 2020-04-30 | 2020-12-04 | 广东粤电新会发电有限公司 | EH oil tank oil leak early warning device |
| CN113251007A (en) * | 2021-04-25 | 2021-08-13 | 河北晟华环保技术工程有限公司 | Waste heat generator set hydraulic system and oil supply method thereof |
| CN114576542A (en) * | 2022-03-15 | 2022-06-03 | 西安热工研究院有限公司 | Threshold self-learning oil filter pipeline leakage detection and protection device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115013088B (en) | 2024-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101268429B (en) | Monitoring a system having degrading components | |
| CN109637680A (en) | Nuclear power station leakage monitoring alarm method and alarm system | |
| CN111679952A (en) | Alarm threshold generation method and device | |
| JP2018112903A (en) | Plant operation support apparatus, plant operation support method, plant operation support program, and recording medium | |
| JPH0954613A (en) | Plant facility monitor device | |
| JP2012058937A (en) | Equipment diagnostic method and equipment diagnostic system for nuclear power plant | |
| CN117217630A (en) | Equipment reliability maintenance method and system for intelligent power plant | |
| CN117610322B (en) | Digital twinning-based intelligent water affair dynamic monitoring system and monitoring method | |
| CN115013088A (en) | Monitoring system for operation of high-pressure fire-resistant oil system | |
| CN111879522B (en) | Steam turbine operation monitoring and fault distinguishing method and system based on time sequence probability | |
| EP3945383A1 (en) | Management of a filter in continuous flow engine | |
| CN113251310A (en) | Method and equipment for detecting hydrogen storage cylinder | |
| CN116147878B (en) | Large-scale low-temperature wind tunnel safety interlocking method, device and storage medium | |
| CN111312415A (en) | Fault diagnosis method and device | |
| CN114859020A (en) | Method and device for predicting service life of hydraulic oil of shield tunneling machine | |
| JPH10301619A (en) | Diagnostic device for fuel battery power generation plant | |
| JP6126316B2 (en) | Maintenance support system and maintenance support method | |
| JP2000215366A (en) | Water pipe leakage monitoring device | |
| JPS63238515A (en) | Sensor life prediction system | |
| JPS61271418A (en) | Measuring instrument verification system in process control computer system | |
| EP4109189A1 (en) | Method for selecting a time-series data stream in a production plant | |
| CN109739210A (en) | The appraisal procedure and device of part of appliance health status | |
| JP6192925B2 (en) | Plant operation support apparatus and plant operation support method | |
| CN113587116B (en) | Control method, control system and equipment for protection equipment in water-cooling circulation system | |
| CN114897196B (en) | Operation management method, equipment and medium for office building water supply network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |