A jet flow vacuum-based petrochemical energy-saving control system and device

Abstract

The present application relates to the technical field of intelligent control, and particularly relates to a petroleum chemical energy-saving control system and device based on jet vacuum, which comprises a data acquisition module, a data processing module, an energy-saving recovery analysis module, a platform original pump state analysis module, a jet vacuum control module and a control feedback module. Through intelligent control of the jet vacuum pump and the centrifugal pump, the control system not only improves energy utilization efficiency and energy-saving environmental protection benefits, but also enhances the adaptability of the system to complex working conditions, can quickly and accurately respond to sudden conditions such as centrifugal pump failure and sea condition danger, effectively reduces production risk, and guarantees the safety, stability and efficiency of petroleum chemical production.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent control, and particularly relates to a petroleum chemical energy-saving control system and device based on jet vacuum. BACKGROUND

[0002] The semi-submersible platform controls the draft, the angle of roll / trim and the metacentric height by regulating the ballast water with the centrifugal pump, but the centrifugal pump is prone to failure, and any failure of the ballast system may cause the platform to be unbalanced or even capsized.

[0003] Chinese Patent Publication No. CN118669084A relates to a high-pressure jet flow blowout preventer and its hydraulic system, and relates to the technical field of oil and gas drilling control equipment. The present application adds an auxiliary jet assembly for auxiliary cutting using high-pressure jet flow fluid to the existing conventional shear ram blowout preventer hydraulic system. The auxiliary jet assembly includes a check valve assembly and at least one jet nozzle. The check valve assembly is assembled in the auxiliary jet assembly mounting hole. One end of the jet nozzle is connected to the check valve assembly and is in communication. The other end of the jet nozzle extends to the shear cavity. The jet cutting area formed by the fluid ejected from the jet nozzle on the drill pipe is located on the same radial cross section of the shear ram I and the shear ram II on the drill pipe. The auxiliary jet assembly can produce a cut on the drill pipe during the shear ram blowout preventer shearing process, thereby reducing the peak shear force of the ram, improving the service life of the ram, and reducing the working pressure of the hydraulic system. However, this scheme cannot achieve emergency repair of the semi-submersible platform in emergency sea conditions or original centrifugal pump failure based on intelligent control. In addition, a large amount of waste gas and waste heat is generated during oil extraction. Simple exhaust of waste gas and waste heat will cause pollution and low energy-saving and environmental protection benefits. SUMMARY

[0004] To this end, the present application provides a petroleum chemical energy-saving control system and device based on jet vacuum to overcome the problem that the prior art cannot achieve emergency repair of the semi-submersible platform in emergency sea conditions or original centrifugal pump failure based on intelligent control, and a large amount of waste gas and waste heat is generated during oil extraction. Simple exhaust of waste gas and waste heat will cause pollution and low energy-saving and environmental protection benefits.

[0005] To achieve the above-mentioned purpose, on the one hand, the present application provides a petroleum chemical energy-saving control system based on jet vacuum, comprising:

[0006] The data acquisition module is used to acquire petroleum chemical data.

[0007] The data processing module is used to preprocess the petroleum chemical data to obtain preprocessed chemical data.

[0008] Energy-saving recovery analysis module, used to judge the thermal energy stability state based on the pre-processed chemical data, and output the thermal energy sufficiency situation based on the judgment result. It is also used to judge the energy supply participation status based on the thermal energy sufficiency situation and obtain the energy supply participation status;

[0009] The platform's original pump status analysis module is used to output centrifugal pump failure conditions based on pre-processed chemical data, output dangerous sea conditions based on pre-processed chemical data, and output emergency plans based on the centrifugal pump failure conditions, dangerous sea conditions, sufficient heat energy, and energy supply participation status to obtain emergency plans. The output process of the emergency plan is also corrected based on the pre-processed chemical data, and the correction process of the output of the emergency plan is also fine-tuned based on the pre-processed chemical data;

[0010] A jet vacuum control module, configured to output a control plan according to an emergency plan and control the jet vacuum pump according to the control plan;

[0011] The control feedback module is used to adjust the control scheme according to the sufficient thermal energy.

[0012] Furthermore, when the energy-saving recovery analysis module calculates the recovered hot gas stability coefficient based on the pre-processed chemical data, the recovered hot gas stability coefficient is calculated based on the pre-processed chemical data using a hot gas stability coefficient calculation method, and the hot gas stability coefficient calculation method includes:

[0013] Step A1: According to the waste gas flow m in the chemical data after pretreatment i , exhaust gas temperature T i , the average constant pressure specific heat capacity Cp of exhaust gas and the lowest available exhaust temperature Tmin affect the instantaneous heat power Qs of exhaust gas i Perform calculations and set Qs i =m i ×Cp×(T i -Tmin), and obtain the instantaneous heat power Qs of the exhaust gas i ;

[0014] Step A2: Based on the instantaneous heat power Qs of the exhaust gas i Calculate the average thermal power Qp and the total number of acquisition points N, and set , get the average thermal power Qp;

[0015] Step A3: Based on the instantaneous heat power Qs of the exhaust gas i , average thermal power Qp and total number of acquisition points N to thermal power standard deviation Calculate and set , get the standard deviation of thermal power ;

[0016] Step A4: Based on the standard deviation of thermal power Calculate the coefficient of variation CV with the average thermal power Qp, and set CV= / Qp, to obtain the coefficient of variation CV;

[0017] Step A5, calculating the recovered hot gas stability coefficient S according to the coefficient of variation CV, setting S=1 / (1+CV), and obtaining the recovered hot gas stability coefficient S;

[0018] The energy-saving recovery analysis module compares the recovered heat stability coefficient S with the preset heat stability coefficient S0, and judges the thermal energy stability state according to the comparison result, and outputs the thermal energy sufficiency according to the judgment result, wherein:

[0019] When S≤S0, the energy-saving recovery analysis module determines that the thermal energy stable state is unstable and outputs insufficient thermal energy as sufficient thermal energy;

[0020] When S>S0, the energy-saving recovery analysis module determines that the thermal energy stable state is stable, and outputs sufficient thermal energy as a sufficient thermal energy situation.

[0021] Furthermore, when the energy-saving recovery analysis module determines that the heat energy is sufficient, the recovered heat ratio Q1 is calculated according to the recovered heat storage capacity Q and the preset recovered heat storage capacity Q0, and Q1=Q / Q0 is set. The recovered heat ratio Q1 is compared with the preset recovered heat ratio Q2, and the energy supply participation state is judged according to the comparison result, and the energy supply participation state is output according to the judgment result, wherein:

[0022] When Q1>Q2, the energy-saving recovery analysis module determines that the energy supply participation state is participating in energy supply, and outputs participating in energy supply as the energy supply participation state;

[0023] When Q1≤Q2, the energy-saving recovery analysis module determines that the energy supply participation state is not participating in energy supply, and outputs not participating in energy supply as the energy supply participation state.

[0024] Furthermore, the platform original pump status analysis module includes:

[0025] The original pump status analysis unit is used to output the centrifugal pump failure status based on the pre-processed chemical data, and is also used to output the dangerous sea conditions based on the pre-processed chemical data. It is also used to output the emergency plan based on the centrifugal pump failure status, dangerous sea conditions, sufficient heat energy and energy supply participation status to obtain an emergency plan;

[0026] State analysis and adjustment unit, used to calibrate the output process of the emergency plan based on pre-processed chemical data;

[0027] The sea area noise detection and compensation unit is used to fine-tune the correction process of the emergency plan output based on the pre-processed chemical data.

[0028] Furthermore, when the original pump state analysis unit outputs the centrifugal pump fault condition according to the pre-processed chemical data, the instantaneous value V of the vibration speed in the pre-processed chemical data is used. k Calculate the vibration severity Vx and the number of vibration sampling points L, and set , compare the vibration severity Vx with the preset vibration severity Vx0, and judge the vibration state of the centrifugal pump based on the comparison result, and output the centrifugal pump fault condition based on the judgment result, where:

[0029] When Vx≤Vx0, the original pump state analysis unit determines that the vibration state of the centrifugal pump is normal vibration, and outputs no fault as a centrifugal pump fault condition;

[0030] When Vx>Vx0, the original pump state analysis unit determines that the vibration state of the centrifugal pump is abnormal vibration, and outputs a fault as a centrifugal pump fault condition.

[0031] Furthermore, when the original pump state analysis unit determines that the vibration state of the centrifugal pump is abnormal vibration and outputs a fault as a centrifugal pump fault condition, the drilling platform data in the pre-processed chemical data is input into the sea condition hazard judgment model to obtain the hazard coefficient α output by the sea condition hazard judgment model, and the hazard coefficient α is compared with the preset hazard coefficient α0. The hazard condition is judged according to the comparison result, and the sea condition hazard condition is output according to the judgment result, wherein:

[0032] When α≤α0, the original pump state analysis unit determines that the dangerous situation is not dangerous and outputs the non-dangerous situation as a dangerous sea situation;

[0033] When α>α0, the original pump state analysis unit determines that the dangerous situation is dangerous and outputs the danger as a dangerous sea condition.

[0034] Furthermore, when the original pump state analysis unit determines that the vibration state of the centrifugal pump is abnormal vibration and outputs a fault as a centrifugal pump fault condition, it also detects the redundancy of the centrifugal pump and outputs an emergency plan based on the detection result, wherein:

[0035] When the redundancy of the centrifugal pump is detected to be redundant and the dangerous sea condition is not dangerous, the original pump state analysis unit sends a signal of not performing jet vacuum control to the jet vacuum control unit as an emergency plan output;

[0036] When the redundancy of the centrifugal pump is detected as redundant and the sea condition is dangerous, the original pump state analysis unit replaces the centrifugal pump determined to be faulty with a redundant centrifugal pump as an emergency plan;

[0037] When the redundancy of the centrifugal pump is detected as no redundancy and the sea condition is dangerous, the original pump state analysis unit obtains the sufficient heat energy output by the energy-saving recovery analysis module, wherein:

[0038] If the thermal energy is sufficient, the original pump state analysis unit sends a signal for jet vacuum control to the jet vacuum control unit as an emergency plan output;

[0039] If the heat energy is insufficient, the original pump state analysis unit sends an alarm signal to the staff as an emergency plan output;

[0040] When the redundancy of the centrifugal pump is detected to be non-redundant and the sea condition is not dangerous, the original pump state analysis unit obtains the energy supply participation state output by the energy-saving recovery analysis module, wherein:

[0041] If the energy supply participation state is not participating in energy supply, the original pump state analysis unit sends the gas heat energy as an energy supply signal to the jet vacuum control unit, and supplements the redundant centrifugal pump as an emergency plan output;

[0042] If the energy supply participation status is participating in energy supply, the original pump status analysis unit determines that the centrifugal pump failure is a faulty centrifugal pump and replaces it with a new centrifugal pump, and supplements the redundant centrifugal pump as an emergency plan.

[0043] Furthermore, when the state analysis and adjustment unit corrects the judgment process of the energy supply participation state according to the preprocessed chemical data, the centrifugal pump impeller service coefficient γ is calculated according to the centrifugal pump usage time Tx, the centrifugal pump design usage time Ts, the current pump efficiency Wd, the factory efficiency Wc, the first weight coefficient q1 and the second weight coefficient q2 in the preprocessed chemical data, and γ=q1×Tx / Ts+q2×Wd / Wc is set. The centrifugal pump impeller service coefficient γ is compared with the preset centrifugal pump impeller service coefficient γ0, and the service life redundancy is judged according to the comparison result. The output process of the emergency plan is corrected according to the judgment result, wherein:

[0044] When γ≤γ0, the state analysis and adjustment unit determines that the service life redundancy is sufficient, corrects the output process of the emergency plan, and corrects the preset recovery heat ratio Q2 by the first correction coefficient Jz1, setting Jz1=0.85+0.10×e -(γ0-γ), e is the base of the natural logarithm, and the preset recovered heat ratio Q2j after correction is obtained. Set Q2j=Jz1×Q2, replace the preset recovered heat ratio Q2 with the preset recovered heat ratio Q2j after correction, and re-compare the recovered heat ratio Q1 with the preset recovered heat ratio Q2j after correction to obtain the new energy supply participation status, and re-output the emergency plan based on the new energy supply participation status;

[0045] When γ>γ0, the state analysis and adjustment unit determines that the service life redundancy is insufficient, and corrects the output process of the emergency plan. The correction method is to replace the emergency plan when the redundancy of the centrifugal pump is detected to be no redundancy, the sea condition is not dangerous, and the energy supply participation status is not participating in energy supply with: the original pump state analysis unit replaces the centrifugal pump that is determined to be faulty with a new centrifugal pump, and supplements the redundant centrifugal pump.

[0046] Furthermore, when fine-tuning the correction process of the output of the emergency plan based on the noise data, the sea area noise detection and compensation unit inputs the noise data into the noise analysis model to obtain the ocean noise coefficient Zy output by the noise analysis model, compares the ocean noise coefficient Zy with the minimum ocean noise preset coefficient Zymin and the maximum ocean noise preset coefficient Zymax, judges the ocean noise situation based on the comparison result, and fine-tunes the correction process of the output of the emergency plan based on the judgment result, wherein:

[0047] When Zy≤Zymin, the ocean noise detection and compensation unit determines that the ocean noise situation is low noise, and does not perform fine calibration on the correction process of the output of the emergency plan;

[0048] When Zymin<Zy≤Zymax, the sea noise detection and compensation unit determines that the ocean noise situation is medium noise, and fine-calibrates the correction process of the output of the emergency plan. The first correction coefficient Jz1 is fine-calibrated by the first fine-calibration coefficient Jj1, and Jj1=0.77+0.13×e -(Zy-Zymin) , obtain the second correction coefficient Jz2, set Jz2=Jj1×Jz1, replace the first correction coefficient Jz1 with the second correction coefficient Jz2, and correct the preset recovery heat ratio Q2 by the second correction coefficient Jz2;

[0049] When Zy>Zymax, the sea noise detection and compensation unit determines that the ocean noise situation is high noise, and fine-calibrates the correction process of the output of the emergency plan. The first correction coefficient Jz1 is fine-calibrated by the second fine-calibration coefficient Jj2, and Jj2=0.5+0.2×e -(Zy-Zymax)The second correction coefficient Jz2 is obtained, Jz2 is set as Jj2*Jz1, the first correction coefficient Jz1 is replaced by the second correction coefficient Jz2, and the preset recovered heat proportion Q2 is corrected by the second correction coefficient Jz2.

[0050] In another aspect, the application also provides a device of a petrochemical energy-saving control system based on a jet vacuum, which comprises:

[0051] The centrifugal pump is connected with the second stand, and the jet vacuum pump is connected with the second stand, the centrifugal pump comprises a first drain pipe, a centrifugal impeller and a first water outlet, one end of the first drain pipe is connected with the second stand, the other end is connected with the centrifugal impeller, the centrifugal impeller is connected with the first drain pipe and the second stand, and the first water outlet is connected with the centrifugal impeller, the jet vacuum pump comprises a second water outlet, a vacuum pump body, a vacuum pump base and a second drain pipe, the second water outlet is connected with the vacuum pump body, the vacuum pump body is connected with the vacuum pump base and the second drain pipe, the vacuum pump base is connected with the vacuum pump body and the float, and one end of the second drain pipe is connected with the second stand, and the other end is connected with the vacuum pump body.

[0052] Compared with the prior art, the system can collect petrochemical data through the data acquisition module, control the jet vacuum pump, realize the purpose of energy saving and environmental protection, preprocess the petrochemical data through the petrochemical data processing module, remove unnecessary data and interference data from the petrochemical data, improve the accuracy of the petrochemical data, analyze the petrochemical data, judge whether the jet vacuum pump can be powered by waste heat energy through the energy saving and recycling analysis module, realize the purpose of energy saving and environmental protection, judge the processing mode of the centrifugal pump and the control state of the jet vacuum pump according to the sea condition danger, the heat energy sufficiency and the energy supply participation state through the platform original pump state analysis module, select the optimal emergency avoidance method, improve the risk resistance of the semi-submersible drilling platform, control the jet vacuum pump through the jet vacuum control module, improve the risk resistance of the semi-submersible drilling platform and the energy saving and environmental protection benefit according to the emergency scheme, and obtain the heat energy sufficiency output by the energy saving and recycling analysis module in real time through the control feedback module, replace the energy supply of the jet vacuum pump if the heat energy is insufficient at this time, and make the jet vacuum pump work stably through more stable energy. BRIEF DESCRIPTION OF DRAWINGS

[0053] Figure 1 This is a schematic structural diagram of the petrochemical energy-saving control system based on jet vacuum in this embodiment;

[0054] Figure 2 This is a schematic diagram of the structure of the original pump status analysis module of the platform in this embodiment;

[0055] Figure 3 This embodiment is a petrochemical energy-saving drilling platform based on jet vacuum. DETAILED DESCRIPTION

[0056] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

[0057] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0058] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0059] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0060] See also Figure 1 FIG. 1 is a schematic diagram of the structure of a petrochemical energy-saving control system based on jet vacuum according to this embodiment. The system includes:

[0061] Data acquisition module, used to collect petrochemical data;

[0062] A data processing module is used to pre-process the petrochemical data to obtain pre-processed chemical data, and the data processing module is connected to the data acquisition module;

[0063] An energy-saving and recovery analysis module is used to judge the thermal energy stability state based on the pre-processed chemical data, and output the thermal energy sufficiency situation based on the judgment result. It is also used to judge the energy supply participation state based on the thermal energy sufficiency situation and obtain the energy supply participation state. The energy-saving and recovery analysis module is connected to the data processing module;

[0064] The platform original pump state analysis module is used to output the centrifugal pump failure status based on the pre-processed chemical data, output the dangerous sea condition based on the pre-processed chemical data, and output the emergency plan based on the centrifugal pump failure status, dangerous sea condition, sufficient heat energy and energy supply participation status to obtain the emergency plan, correct the output process of the emergency plan based on the pre-processed chemical data, and fine-tune the correction process of the output of the emergency plan based on the pre-processed chemical data. The platform original pump state analysis module is connected to the energy saving and recovery analysis module;

[0065] A jet vacuum control module, configured to output a control plan according to the emergency plan and control the jet vacuum pump according to the control plan, wherein the jet vacuum control module is connected to the platform original pump state analysis module;

[0066] The control feedback module is used to adjust the control scheme according to the sufficient heat energy situation, and the control feedback module is connected to the jet vacuum control module.

[0067] Specifically, the petrochemical energy-saving control system based on jet vacuum is applied to a semi-submersible drilling platform. When facing an emergency or centrifugal pump failure, the production stability and risk resistance of the semi-submersible platform are achieved through intelligent control of the jet vacuum pump and the centrifugal pump. At the same time, by utilizing the waste gas, the waste gas is used to supply energy to the jet vacuum pump, reducing the pollution generated by the waste gas and waste heat, and improving the energy-saving and environmental protection benefits. The system collects petrochemical data through the data acquisition module, and then controls the jet vacuum pump to achieve the purpose of energy saving and environmental protection. The system also pre-processes the petrochemical data through the petrochemical data processing module, and extracts unnecessary data and interference data from the petrochemical data to improve the accuracy of the petrochemical data for subsequent analysis of the petrochemical data. The system also determines whether the waste gas heat energy can be used to supply energy to the jet vacuum pump through the energy-saving recovery analysis module, so as to achieve the purpose of energy saving and environmental protection. The system also uses the platform's original pump status analysis module to judge the handling method of the centrifugal pump and the control status of the jet vacuum pump according to the dangerous sea conditions, sufficient heat energy and energy supply participation status, so as to adapt to the emergency risk avoidance method of the semi-submersible drilling platform when facing various situations, select the optimal emergency risk avoidance method, and thus improve the risk resistance of the semi-submersible drilling platform. The system also controls the jet vacuum pump through the jet vacuum control module to achieve the purpose of improving the risk resistance of the semi-submersible drilling platform and improving energy saving and environmental protection benefits according to the emergency plan. The system also controls the jet vacuum pump through the control feedback module to obtain the heat energy sufficiency output by the energy-saving recovery analysis module in real time. If the heat energy sufficiency output by the energy-saving recovery analysis module is insufficient heat energy at this time, the insufficient heat energy supply at this time may easily cause the jet vacuum pump to stop working. At this time, the energy supply of the jet vacuum pump needs to be replaced to enable it to work stably through a more stable energy source.

[0068] Specifically, the petrochemical data includes exhaust gas flow, exhaust gas temperature, recovered hot gas storage capacity, instantaneous value of vibration speed, drilling platform data, centrifugal pump usage time, centrifugal pump design usage time, factory efficiency and current pump efficiency. The drilling platform data includes wave height, roll angle, anchor chain tension and wind speed. When the data acquisition module collects petrochemical data, the data acquisition module collects the exhaust gas flow through the flow sensor, the data acquisition module collects the exhaust gas temperature through the temperature sensor, the data acquisition module collects the recovered hot gas storage capacity through the records of the exhaust gas storage tank, and the data acquisition module collects the recovered hot gas storage capacity through the records of the exhaust gas storage tank. The vibration measuring instrument collects the instantaneous value of the vibration velocity, the data acquisition module collects the wave height through the radar wave meter, the data acquisition module collects the roll angle through the fiber optic gyroscope, the data acquisition module collects the anchor chain tension through the tension sensor, the acquisition module collects the wind speed through the ultrasonic anemometer, the data acquisition module collects the usage time of the centrifugal pump through the instrument record sheet, the data acquisition module collects the designed usage time and factory efficiency of the centrifugal pump through the instruction manual, and the data acquisition module collects the current pump efficiency through the system data record, and the system data record refers to the data recorded by the control system of the semi-submersible drilling platform.

[0069] Specifically, the data acquisition module collects petrochemical data so as to subsequently control the jet vacuum pump to achieve the purpose of energy saving and environmental protection.

[0070] Specifically, the data processing module counts the data missing rate of each column and each row of petrochemical data in the petrochemical data. When the data missing rate is greater than 30%, the column and row of petrochemical data are deleted, and outliers in the petrochemical data are removed by statistical methods to obtain pure petrochemical data. The pure petrochemical data is standardized by the Z-score method to obtain standardized petrochemical data. Feature selection is also performed on the standardized petrochemical data by filtering method to remove redundant features to obtain preprocessed chemical data.

[0071] Specifically, the data missing rate refers to the proportion of missing data in a single column and row in semiconductor production data to the total data in a single column and row. The statistical method refers to identifying and processing data points that deviate from the normal distribution through statistical principles and indicators to ensure data quality and the accuracy of subsequent analysis. This embodiment does not limit the specific method of the statistical method. For example, the interquartile range method is used as the statistical method. The outlier refers to data whose difference with the rest of the data in the petrochemical data is much larger than the difference with other data. The Z-score method refers to a statistical method for measuring the relative position of a data point in a data set. The filtering method refers to a method used for feature selection in the data preprocessing stage, which measures the importance of the feature by calculating its statistic and removes redundant and unimportant features according to the set threshold. The redundant feature refers to redundant features.

[0072] Specifically, the petrochemical data processing module pre-processes the petrochemical data to remove unnecessary data and interference data from the petrochemical data, thereby improving the accuracy of the petrochemical data and facilitating subsequent analysis of the petrochemical data.

[0073] Specifically, when the energy-saving recovery analysis module calculates the recovered hot gas stability coefficient based on the pre-processed chemical data, the recovered hot gas stability coefficient is calculated based on the pre-processed chemical data using a hot gas stability coefficient calculation method, and the hot gas stability coefficient calculation method includes:

[0074] Step A1: According to the waste gas flow m in the chemical data after pretreatment i , exhaust gas temperature T i , the average constant pressure specific heat capacity Cp of exhaust gas and the lowest available exhaust temperature Tmin affect the instantaneous heat power Qs of exhaust gas i Perform calculations and set Qs i =m i ×Cp×(T i -Tmin), and obtain the instantaneous heat power Qs of the exhaust gas i ;

[0075] Step A2: Based on the instantaneous heat power Qs of the exhaust gas i Calculate the average thermal power Qp and the total number of acquisition points N, and set , get the average thermal power Qp;

[0076] Step A3: Based on the instantaneous heat power Qs of the exhaust gas i , average thermal power Qp and total number of acquisition points N to thermal power standard deviation Calculate and set , get the standard deviation of thermal power ;

[0077] Step A4: Based on the standard deviation of thermal power Calculate the coefficient of variation CV with the average thermal power Qp, and set CV= / Qp, to obtain the coefficient of variation CV;

[0078] Step A5, calculating the recovered hot gas stability coefficient S according to the coefficient of variation CV, setting S=1 / (1+CV), and obtaining the recovered hot gas stability coefficient S;

[0079] The energy-saving recovery analysis module compares the recovered heat stability coefficient S with the preset heat stability coefficient S0, and judges the thermal energy stability state according to the comparison result, and outputs the thermal energy sufficiency according to the judgment result, wherein:

[0080] When S≤S0, the energy-saving recovery analysis module determines that the thermal energy stable state is unstable and outputs insufficient thermal energy as sufficient thermal energy;

[0081] When S>S0, the energy-saving recovery analysis module determines that the thermal energy stable state is stable, and outputs sufficient thermal energy as a sufficient thermal energy situation.

[0082] Specifically, the total number of collection points refers to the total number of times the exhaust gas flow rate and exhaust gas temperature are collected, i is the order of the collection points, i is a positive integer, and the maximum value of i is N. The exhaust gas flow rate refers to the exhaust gas flow rate collected during the oil extraction process, and the exhaust gas temperature refers to the temperature of the exhaust gas collected during the oil extraction process. The average constant-pressure specific heat capacity of the exhaust gas refers to the average specific heat capacity of various types of exhaust gases in the exhaust gas collected during the oil extraction process. This embodiment does not limit the specific method for obtaining the average constant-pressure specific heat capacity of the exhaust gas. For example, the specific heat capacity of all exhaust gases collected during the oil extraction process can be checked and their average specific heat capacity can be obtained. The minimum available exhaust gas temperature refers to the lowest exhaust gas temperature that can be used for the exhaust gas collected during the oil extraction process. The embodiment does not limit the specific numerical value of the minimum available exhaust gas temperature. Those skilled in the art can set it according to actual conditions, such as limiting the specific numerical value of the minimum available exhaust gas temperature according to the experience of experts. The thermal energy stability state refers to the state of whether the collected exhaust gas is stable based on the recovered heat gas stability coefficient and the preset heat gas stability coefficient. The thermal energy stability state includes the thermal energy stability state being unstable and the thermal energy stability state being stable. The preset heat gas stability coefficient refers to the preset value for judging the thermal energy stability state. This embodiment does not limit the specific numerical value of the preset heat gas stability coefficient. Those skilled in the art can set it according to actual conditions, such as setting the specific numerical value of the preset heat gas stability coefficient according to the experience of experts.

[0083] Specifically, the energy-saving recovery analysis module outputs the thermal energy sufficiency status so as to subsequently control the jet vacuum pump.

[0084] Specifically, when the energy-saving recovery analysis module determines that the heat energy is sufficient, it calculates the recovered heat ratio Q1 according to the recovered heat storage capacity Q and the preset recovered heat storage capacity Q0, sets Q1=Q / Q0, compares the recovered heat ratio Q1 with the preset recovered heat ratio Q2, judges the energy supply participation status according to the comparison result, and outputs the energy supply participation status according to the judgment result, wherein:

[0085] When Q1>Q2, the energy-saving recovery analysis module determines that the energy supply participation state is participating in energy supply, and outputs participating in energy supply as the energy supply participation state;

[0086] When Q1≤Q2, the energy-saving recovery analysis module determines that the energy supply participation state is not participating in energy supply, and outputs not participating in energy supply as the energy supply participation state.

[0087] Specifically, the recovered hot gas storage capacity refers to the storage capacity of the recovered exhaust gas, and the preset recovered hot gas storage capacity refers to the preset value for calculating the recovered heat ratio. This embodiment does not limit the specific value of the preset recovered hot gas storage capacity. Those skilled in the art can set it according to actual conditions. For example, the preset recovered hot gas storage capacity is set according to the continuous energy supply demand of the jet vacuum pump. When the energy supply demand of the jet vacuum pump is large, Q0=30m 3 The preset recovered heat ratio refers to a preset value for judging the energy supply participation state. This embodiment does not limit the specific value of the preset recovered heat ratio. For example, it can be set according to the power of the jet vacuum pump. When the power of the jet vacuum pump is large, set Q2=40%×Q0. The energy supply participation state refers to the state of whether to participate in energy supply based on the recovered heat ratio and the preset recovered heat ratio. The functional participation state includes the energy supply participation state of participating in energy supply and the energy supply participation state of not participating in energy supply.

[0088] Specifically, the energy-saving recovery analysis module judges the energy supply participation status and outputs the energy supply participation status according to the judgment result, so as to subsequently judge whether to use the gas heat energy generated by the exhaust gas to supply energy to the jet vacuum pump.

[0089] Specifically, the jet vacuum control module also obtains the emergency plan output by the platform original pump state analysis module, outputs the emergency plan as a control plan, and controls the jet vacuum pump according to the control plan.

[0090] Specifically, this embodiment does not limit the specific implementation method of controlling the jet vacuum pump by the control scheme. For example, the jet vacuum pump can be controlled according to the control scheme using a PID control algorithm.

[0091] Specifically, the jet vacuum control module controls the start-up of the jet vacuum pump according to the emergency plan and uses hot gas energy to drive it, so as to achieve the purpose of energy saving and environmental protection.

[0092] Specifically, after controlling the jet vacuum pump according to the control scheme, the control feedback module obtains the heat energy sufficiency output by the energy-saving recovery analysis module in real time. If the heat energy sufficiency output by the energy-saving recovery analysis module is insufficient heat energy at this time, the control scheme is corrected and modified to stop the hot gas energy supply and enable the electric energy supply to obtain a new control scheme, and the new control scheme is sent to the jet vacuum control module.

[0093] Specifically, this embodiment does not limit the specific implementation method of sending the new control scheme to the jet vacuum control module. Those skilled in the art can set it according to actual needs, such as sending the new control scheme to the jet vacuum control module via wireless signal transmission.

[0094] Specifically, after the control feedback module controls the jet vacuum pump according to the control scheme, it obtains the thermal energy sufficiency output by the energy-saving recovery analysis module in real time. If the thermal energy sufficiency output by the energy-saving recovery analysis module is insufficient thermal energy at this time, the insufficient thermal energy supply at this time may easily cause the jet vacuum pump to stop working. At this time, the energy supply of the jet vacuum pump needs to be replaced to enable it to work stably through a more stable energy source.

[0095] See also Figure 2 As shown, it is a schematic diagram of the structure of the platform original pump status analysis module of this embodiment, and the platform original pump status analysis module includes:

[0096] The original pump status analysis unit is used to output the centrifugal pump failure status based on the pre-processed chemical data, and is also used to output the dangerous sea conditions based on the pre-processed chemical data. It is also used to output the emergency plan based on the centrifugal pump failure status, dangerous sea conditions, sufficient heat energy and energy supply participation status to obtain an emergency plan;

[0097] A state analysis and adjustment unit, used to correct the output process of the emergency plan according to the pre-processed chemical data, and the state analysis and adjustment unit is connected to the original pump state analysis unit;

[0098] The sea area noise detection and compensation unit is used to calibrate the correction process of the output of the emergency plan according to the pre-processed chemical data. The sea area noise detection and compensation unit is connected to the state analysis and adjustment unit.

[0099] Specifically, when the original pump state analysis unit outputs the centrifugal pump fault condition according to the pre-processed chemical data, the instantaneous value V of the vibration speed in the pre-processed chemical data is used. kand the vibration intensity Vx is calculated by the vibration sampling summary point number L, and the vibration intensity Vx is compared with the preset vibration intensity Vx0, and the centrifugal pump vibration state is judged according to the comparison result, and the centrifugal pump fault condition is output according to the judgment result, wherein:

[0100] When Vx≤Vx0, the original pump state analysis unit determines that the centrifugal pump vibration state is normal vibration, and no fault is output as the centrifugal pump fault condition;

[0101] When Vx>Vx0, the original pump state analysis unit determines that the centrifugal pump vibration state is abnormal vibration, and a fault is output as the centrifugal pump fault condition.

[0102] Specifically, the vibration speed instantaneous value refers to the instantaneous vibration speed of the centrifugal pump at k time, the preset vibration intensity refers to the preset value for judging the vibration state of the centrifugal pump, and the specific value of the preset vibration intensity is not limited in the embodiment, which can be set according to the specific model of the centrifugal pump. When the model of the centrifugal pump is a multi-stage centrifugal pump, Vx0=4.5 is set, the vibration state of the centrifugal pump refers to the state of the centrifugal pump vibration whether normal or abnormal according to the vibration intensity and the preset vibration intensity, the vibration state of the centrifugal pump includes normal vibration and abnormal vibration, the centrifugal pump fault condition refers to the result of whether the centrifugal pump has a fault according to the vibration state of the centrifugal pump, the vibration sampling summary point number is the total number of collected vibration speed instantaneous values, and k refers to the order of collection, and the maximum value of k is L.

[0103] Specifically, the original pump state analysis unit judges the centrifugal pump fault condition, so as to select an emergency scheme according to the fault condition of the centrifugal pump, thereby increasing the risk resistance of the semi-submersible drilling platform and improving its stability when encountering risks.

[0104] Specifically, when the original pump state analysis unit determines that the centrifugal pump vibration state is normal vibration and outputs no fault as the centrifugal pump fault condition, the original pump state analysis unit sends a signal that the jet vacuum control is not performed to the jet vacuum control unit as an emergency scheme.

[0105] Specifically, the specific way in which the original pump state analysis unit sends a signal that the jet vacuum control is not performed to the jet vacuum control unit is not limited in the embodiment, and a person skilled in the art can set it according to actual needs, such as sending a signal that the jet vacuum control is not performed to the jet vacuum control unit by a wireless transmission mode.

[0106] ​Specifically, the original pump status analysis unit sends a signal not to perform jet vacuum control to the jet vacuum control unit when the centrifugal pump fault condition is normal, thereby avoiding the jet vacuum control unit starting the jet vacuum pump while the centrifugal pump is operating normally, causing unnecessary energy waste.

[0107] Specifically, when the original pump state analysis unit determines that the vibration state of the centrifugal pump is abnormal vibration and outputs a fault as a centrifugal pump fault condition, the drilling platform data in the pre-processed chemical data is input into the sea condition hazard judgment model to obtain the hazard coefficient α output by the sea condition hazard judgment model, and the hazard coefficient α is compared with the preset hazard coefficient α0. The hazard condition is judged according to the comparison result, and the sea condition hazard condition is output according to the judgment result, wherein:

[0108] When α≤α0, the original pump state analysis unit determines that the dangerous situation is not dangerous and outputs the non-dangerous situation as a dangerous sea situation;

[0109] When α>α0, the original pump state analysis unit determines that the dangerous situation is dangerous and outputs the danger as a dangerous sea condition.

[0110] Specifically, the drilling platform data refers to various environmental parameters of the semi-submersible drilling platform, and the drilling platform data includes wave height, roll angle, anchor chain tension and wind speed. The wave height refers to the average wave height of the first 1 / 3 of all waves in a fixed observation period, and the roll angle refers to the periodic swing angle of the platform around the longitudinal axis. The longitudinal axis refers to the axis from the bow to the stern. The anchor chain tension refers to the dynamic tension borne by a single mooring chain. The wind speed refers to the 10-minute average wind speed at a height of 10 meters from the platform deck. The sea condition hazard judgment model refers to a recurrent neural network model with drilling platform data as input and a hazard coefficient as output. The original pump state analysis unit constructs the sea condition hazard judgment model through the sea condition hazard judgment model construction method. This embodiment does not limit the specific method of the sea condition hazard judgment model construction method, and those skilled in the art can use it based on It can be set up according to actual needs. For example, a cyclic neural network model is trained using a danger judgment data set to obtain a sea condition danger judgment model. The danger judgment data set refers to a training set for training the cyclic neural network model. The danger judgment data set includes historically acquired drilling platform data and the danger coefficient corresponding to the historically acquired drilling platform data. The preset danger coefficient refers to a preset value for judging dangerous situations. This embodiment does not limit the specific value of the preset danger coefficient. For example, after an expert evaluates a semi-submersible drilling platform, the expert can set the specific value of the preset danger coefficient for the semi-submersible drilling platform. When in a relatively chaotic sea area, α0 is set to 0.7. The dangerous situation refers to a situation where the danger coefficient is judged to be dangerous based on the difference between the danger coefficient and the preset danger coefficient. The dangerous situation includes a dangerous situation that is not dangerous and a dangerous situation that is dangerous.

[0111] Specifically, the original pump status analysis unit outputs dangerous sea conditions so that the states of the centrifugal pump and the jet vacuum pump can be controlled according to the sea conditions.

[0112] Specifically, when the original pump state analysis unit determines that the vibration state of the centrifugal pump is abnormal vibration and outputs a fault as a centrifugal pump fault condition, it also detects the redundancy of the centrifugal pump and outputs an emergency plan based on the detection result, wherein:

[0113] When the redundancy of the centrifugal pump is detected to be redundant and the dangerous sea condition is not dangerous, the original pump state analysis unit sends a signal of not performing jet vacuum control to the jet vacuum control unit as an emergency plan output;

[0114] When the redundancy of the centrifugal pump is detected as redundant and the sea condition is dangerous, the original pump state analysis unit replaces the centrifugal pump determined to be faulty with a redundant centrifugal pump as an emergency plan;

[0115] When the redundancy of the centrifugal pump is detected as no redundancy and the sea condition is dangerous, the original pump state analysis unit obtains the sufficient heat energy output by the energy-saving recovery analysis module, wherein:

[0116] If the thermal energy is sufficient, the original pump state analysis unit sends a signal for jet vacuum control to the jet vacuum control unit as an emergency plan output;

[0117] If the heat energy is insufficient, the original pump state analysis unit sends an alarm signal to the staff as an emergency plan output;

[0118] When the redundancy of the centrifugal pump is detected to be non-redundant and the sea condition is not dangerous, the original pump state analysis unit obtains the energy supply participation state output by the energy-saving recovery analysis module, wherein:

[0119] If the energy supply participation state is not participating in energy supply, the original pump state analysis unit sends the gas heat energy as an energy supply signal to the jet vacuum control unit, and supplements the redundant centrifugal pump as an emergency plan output;

[0120] If the energy supply participation status is participating in energy supply, the original pump status analysis unit determines that the centrifugal pump failure is a faulty centrifugal pump and replaces it with a new centrifugal pump, and supplements the redundant centrifugal pump as an emergency plan.

[0121] Specifically, the redundant centrifugal pump refers to a spare centrifugal pump. This embodiment does not limit the detection method for detecting the redundancy of the centrifugal pump, such as by checking whether there is a redundant centrifugal pump in the layout area of ​​the redundant centrifugal pump. This embodiment does not limit the specific implementation method of replacing a centrifugal pump determined to be faulty with a redundant centrifugal pump, such as closing the gate of the centrifugal pump determined to be faulty and opening the gate of the redundant centrifugal pump, thereby replacing the centrifugal pump determined to be faulty with a redundant centrifugal pump. This embodiment does not limit the specific implementation method of sending a signal of not performing jet vacuum control to the jet vacuum control unit, sending a signal of performing jet vacuum control to the jet vacuum control unit, and sending a signal of using gas heat energy as energy supply to the jet vacuum control unit, such as through wireless signal transmission The signal for jet vacuum control is sent to the jet vacuum control unit in a manner. This embodiment does not limit the specific manner of sending the alarm signal to the staff, such as the alarm signal can be sent to the staff mobile terminal by wireless signal transmission. This embodiment does not limit the specific implementation method of supplementing the redundant centrifugal pump, such as a new centrifugal pump can be placed in the installation position of the redundant centrifugal pump to supplement the redundant centrifugal pump. This embodiment does not limit the specific implementation method of replacing a centrifugal pump that is determined to be faulty with a new centrifugal pump, such as a centrifugal pump that is determined to be faulty can be removed from its installation position and a new centrifugal pump can be installed. The emergency plan refers to an emergency response plan made according to the dangerous sea conditions, sufficient thermal energy and energy supply participation status when the centrifugal pump fails.

[0122] Specifically, the original pump status analysis unit detects the redundancy of the centrifugal pump and judges the processing method of the centrifugal pump and the control state of the jet vacuum pump according to the dangerous sea conditions, sufficient thermal energy and energy supply participation status, so as to adapt the emergency avoidance method of the semi-submersible drilling platform when facing various situations, select the optimal emergency avoidance method, and thus improve the risk resistance of the semi-submersible drilling platform.

[0123] Specifically, when the state analysis and adjustment unit corrects the judgment process of the energy supply participation state according to the preprocessed chemical data, the centrifugal pump impeller service coefficient γ is calculated according to the centrifugal pump usage time Tx, the centrifugal pump design usage time Ts, the current pump efficiency Wd, the factory efficiency Wc, the first weight coefficient q1 and the second weight coefficient q2 in the preprocessed chemical data, and γ=q1×Tx / Ts+q2×Wd / Wc is set. The centrifugal pump impeller service coefficient γ is compared with the preset centrifugal pump impeller service coefficient γ0, and the service life redundancy is judged according to the comparison result. The output process of the emergency plan is corrected according to the judgment result, wherein:

[0124] When γ≤γ0, the state analysis and adjustment unit determines that the service life redundancy is sufficient, corrects the output process of the emergency plan, and corrects the preset recovery heat ratio Q2 by the first correction coefficient Jz1, setting Jz1=0.85+0.10×e -(γ0-γ) , e is the base of the natural logarithm, and the preset recovered heat ratio Q2j after correction is obtained. Set Q2j=Jz1×Q2, replace the preset recovered heat ratio Q2 with the preset recovered heat ratio Q2j after correction, and re-compare the recovered heat ratio Q1 with the preset recovered heat ratio Q2j after correction to obtain the new energy supply participation status, and re-output the emergency plan based on the new energy supply participation status;

[0125] When γ>γ0, the state analysis and adjustment unit determines that the service life redundancy is insufficient, and corrects the output process of the emergency plan. The correction method is to replace the emergency plan when the redundancy of the centrifugal pump is detected to be no redundancy, the sea condition is not dangerous, and the energy supply participation status is not participating in energy supply with: the original pump state analysis unit replaces the centrifugal pump that is determined to be faulty with a new centrifugal pump, and supplements the redundant centrifugal pump.

[0126] Specifically, the service life of the centrifugal pump refers to the total time from the time the centrifugal pump is installed on the semi-submersible drilling platform to the present, the designed service life of the centrifugal pump refers to the theoretical service life that the designed centrifugal pump can achieve, the current pump efficiency refers to the current working efficiency of the centrifugal pump, the factory efficiency refers to the working efficiency of the centrifugal pump when it leaves the factory, the first weight coefficient and the second weight coefficient refer to the weight coefficients used to calculate the service coefficient of the centrifugal pump impeller, and q1+q2=1 is set. This embodiment does not limit the specific values ​​of the first weight coefficient and the second weight coefficient. Those skilled in the art can set them according to actual needs, such as through The specific values ​​of the first weight coefficient and the second weight coefficient are set based on the expert's judgment experience. The service life redundancy situation refers to whether the service life redundancy of the current centrifugal pump is sufficient. The service life redundancy situation includes the service life redundancy situation of sufficient redundancy and the service life redundancy situation of insufficient redundancy. The preset centrifugal pump impeller service coefficient refers to a preset value for judging the service life redundancy situation. This embodiment does not limit the specific value of the preset centrifugal pump impeller service coefficient. For example, the preset centrifugal pump impeller service coefficient can be set according to the material of the centrifugal pump. When the material of the centrifugal pump is 316 stainless steel, γ0 is set to 2.0.

[0127] Specifically, the state analysis and adjustment unit judges the life redundancy and corrects the output process of the emergency plan according to the judgment result. When the life redundancy is sufficient, the centrifugal pump can be used in conjunction with the jet vacuum pump. In order to achieve the purpose of energy saving and environmental protection, the judgment condition of the energy supply participation state is lowered by the first correction coefficient. When the recovery heat proportion Q1 is not much different from the preset recovery heat proportion Q2, hot gas energy can be used for energy supply to achieve the effect of waste gas heat energy utilization. When the life redundancy is insufficient, the emergency plan when the redundancy of the centrifugal pump is detected to be no redundancy, the sea condition is not dangerous and the energy supply participation state is not participating in energy supply is replaced in time: the original pump state analysis unit replaces the centrifugal pump that is judged to be faulty with a new centrifugal pump, and supplements the redundant centrifugal pump to enhance the risk resistance of the semi-submersible drilling platform.

[0128] Specifically, when fine-tuning the correction process of the output of the emergency plan based on the noise data, the sea area noise detection and compensation unit inputs the noise data into the noise analysis model to obtain the ocean noise coefficient Zy output by the noise analysis model, compares the ocean noise coefficient Zy with the minimum ocean noise preset coefficient Zymin and the maximum ocean noise preset coefficient Zymax, judges the ocean noise situation based on the comparison result, and fine-tunes the correction process of the output of the emergency plan based on the judgment result, wherein:

[0129] When Zy≤Zymin, the ocean noise detection and compensation unit determines that the ocean noise situation is low noise, and does not perform fine calibration on the correction process of the output of the emergency plan;

[0130] When Zymin<Zy≤Zymax, the sea noise detection and compensation unit determines that the ocean noise situation is medium noise, and fine-calibrates the correction process of the output of the emergency plan. The first correction coefficient Jz1 is fine-calibrated by the first fine-calibration coefficient Jj1, and Jj1=0.77+0.13×e -(Zy-Zymin) , obtain the second correction coefficient Jz2, set Jz2=Jj1×Jz1, replace the first correction coefficient Jz1 with the second correction coefficient Jz2, and correct the preset recovery heat ratio Q2 by the second correction coefficient Jz2;

[0131] When Zy>Zymax, the sea noise detection and compensation unit determines that the ocean noise situation is high noise, and fine-calibrates the correction process of the output of the emergency plan. The first correction coefficient Jz1 is fine-calibrated by the second fine-calibration coefficient Jj2, and Jj2=0.5+0.2×e -(Zy-Zymax), obtain a second correction coefficient Jz2, set Jz2=Jj2*Jz1, replace the first correction coefficient Jz1 with the second correction coefficient Jz2, and correct the preset recovered heat proportion Q2 by the second correction coefficient Jz2.

[0132] Specifically, the noise data refers to specific data corresponding to the noise generated by the semi-submersible drilling platform during operation. The specific data content of the noise data is not limited in the embodiment, and the noise data content can be set by referring to the sea noise coefficient calculation formula designed according to the ISO17208-3 standard. The specific acquisition method of the noise data is not limited in the embodiment, and the noise data can be acquired by referring to the acquisition device corresponding to the noise data content according to actual needs. The noise analysis model refers to a recurrent neural network model with noise data as input and marine noise coefficient as output. The specific construction method of the noise analysis model is not limited in the embodiment, and the noise analysis model can be obtained by training the recurrent neural network model using the noise analysis data set according to actual needs. The noise analysis data set refers to a training data set for training the recurrent neural network model. The noise analysis data set includes historical noise data and marine noise coefficients corresponding to the historical noise data. The minimum marine noise preset coefficient and the maximum marine noise preset coefficient refer to preset values for judging the marine noise condition. The specific numerical value of the minimum marine noise preset coefficient and the maximum marine noise preset coefficient is not limited in the embodiment, and the minimum marine noise preset coefficient can be set by experts according to the marine biological species and habits of the semi-submersible platform according to the actual needs. When the marine biological species in the sea area have low sound receiving degree, set Zymin=0.4 and Zymax=0.8. The marine noise condition refers to the noise condition caused by the noise data. The marine noise condition includes low noise, medium noise and high noise.

[0133] Specifically, the sea area noise detection and compensation unit judges the ocean noise situation and calibrates the correction process of the output of the emergency plan according to the judgment result. Constants 0.77 and 0.13 are set to reduce the first calibration coefficient from 0.90 to 0.77 as the ocean noise coefficient increases, thereby reducing the value of the first correction coefficient through the first calibration coefficient. Constants 0.5 and 0.2 are set to reduce the second calibration coefficient from 0.7 to 0.5 as the ocean noise coefficient increases, thereby reducing the value of the first correction coefficient through the second calibration coefficient. When the working noise of the centrifugal pump affects the marine life in the water area, the preset recovery heat ratio is reduced by the first calibration coefficient and the second calibration coefficient. When the noise is large and the recovery heat ratio is less than the preset recovery heat ratio, it is also judged to participate in energy supply, and thermal energy is used for environmentally friendly energy supply, thereby improving the noise management level of the centrifugal pump, thereby increasing the protection of marine life, avoiding serious impact of drilling platform work on marine life, and achieving long-term life safety benefits.

[0134] See also Figure 3 As shown, it is a petrochemical energy-saving drilling platform based on jet vacuum in this embodiment, and the petrochemical energy-saving drilling platform includes:

[0135] A floating body 1 is connected to a first column 2 and a second column 3. The floating body 1 is provided with a first water inlet 101, a second water inlet 102, a third water inlet 103, and a fourth water inlet 104. The floating body 1 is used to float the petrochemical energy-saving drilling platform on the sea surface. In this embodiment, two floating bodies 1 are provided (the second floating body is not shown in the figure).

[0136] A first column 2, one end of which is connected to the floating body 1 and the other end of which is connected to the drilling platform 4, for connecting the drilling platform 4 and the floating body 1. In this embodiment, two first columns 2 are provided (the second first column is not shown in the figure);

[0137] A second column 3, one end of which is connected to the floating body 1 and the other end of which is connected to the drilling platform 4, for connecting the drilling platform 4 and the floating body 1. In this embodiment, two second columns 3 are provided (the second second column is not shown in the figure);

[0138] a drilling platform 4 connected to the first column 2, the second column 3, the crane base 5, the drilling tower 8 and the control room 9, and used for installing the crane base 5, the drilling tower 8 and the control room 9;

[0139] a crane base 5 connected to the drilling platform 4 and the crane 6 and used for installing the crane 6;

[0140] a crane 6 connected to the crane base 5 and the hook 6 for performing lifting operations;

[0141] A hook 7 is connected to the crane 6 and is used to hook objects to facilitate the crane to perform lifting operations;

[0142] a drilling tower 8 connected to the drilling platform 4 for performing drilling operations at sea;

[0143] A control room 9, which is connected to the drilling platform 4 and is used to operate the drilling platform;

[0144] The device 11 of the petrochemical energy-saving control system based on jet vacuum comprises a centrifugal pump 1101 and a jet vacuum pump 1102, wherein the centrifugal pump 1101 is connected to the second column 3, and the jet vacuum pump 1102 is connected to the second column 3. The centrifugal pump 1101 comprises a first drain pipe 11011, a centrifugal impeller 11012 and a first water outlet 11013, wherein one end of the first drain pipe 11013 is connected to the second column 3, and the other end is connected to the centrifugal impeller 11012, the centrifugal impeller 11012 is connected to the first drain pipe 11011 and the second column 3, and the first water outlet 11013 is connected to the first water outlet 11013. 13 is connected to the centrifugal impeller 11012. The jet vacuum pump 1102 includes a second water outlet 11021, a vacuum pump body 11022, a vacuum pump base 11023, and a second drain pipe 11024. The second water outlet 11021 is connected to the vacuum pump body 11022. The vacuum pump body 11022 is connected to the vacuum pump base 11023 and the second drain pipe 11024. The vacuum pump base 11023 is connected to the vacuum pump body 11022 and the float 1. One end of the second drain pipe 11024 is connected to the second column 3, and the other end is connected to the vacuum pump body 11022.

[0145] The petrochemical energy-saving control system 10 based on jet vacuum is connected to the centrifugal pump 1101 and the jet vacuum pump 1102, and is used to control the start and stop of the centrifugal pump 1101 and the jet vacuum pump.

[0146] Specifically, the device of the jet vacuum-based petrochemical energy-saving control system is equipped with a jet vacuum-based petrochemical energy-saving control system. The centrifugal pump and jet vacuum pump of the device are controlled by the jet vacuum-based petrochemical energy-saving control system. When facing emergencies such as centrifugal pump failure and dangerous sea conditions, it can effectively reduce production risks and improve energy-saving and environmental protection benefits.

[0147] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A petrochemical energy-saving control system based on jet vacuum, characterized in that: include: Data acquisition module, used to collect petrochemical data; The data processing module is used to pre-process the petrochemical data to obtain pre-processed chemical data; Energy-saving recovery analysis module, which is used to calculate the recovered hot gas stability coefficient based on the pre-processed chemical data through the hot gas stability coefficient calculation method, and output the heat energy sufficiency situation based on the calculation results. It is also used to judge the energy supply participation status based on the heat energy sufficiency situation and obtain the energy supply participation status; The platform original pump status analysis module includes: The original pump status analysis unit is used to output the centrifugal pump failure status based on the pre-processed chemical data, and is also used to output the dangerous sea conditions based on the pre-processed chemical data. It is also used to output the emergency plan based on the centrifugal pump failure status, dangerous sea conditions, sufficient heat energy and energy supply participation status to obtain an emergency plan; State analysis and adjustment unit, used to calibrate the output process of the emergency plan based on pre-processed chemical data; The state analysis and adjustment unit includes: The centrifugal pump impeller service coefficient γ is calculated based on the centrifugal pump usage time Tx, the centrifugal pump design usage time Ts, the current pump efficiency Wd, the factory efficiency Wc, the first weight coefficient q1 and the second weight coefficient q2 in the pre-processed chemical data, and γ=q1×Tx / Ts+q2×Wd / Wc is set. The centrifugal pump impeller service coefficient γ is compared with the preset centrifugal pump impeller service coefficient γ0, and the service life redundancy is judged based on the comparison result. The output process of the emergency plan is corrected based on the judgment result; The sea area noise detection and compensation unit is used to fine-tune the correction process of the emergency plan output based on the pre-processed chemical data; The sea area noise detection and compensation unit includes: Input the noise data into the noise analysis model to obtain the ocean noise coefficient Zy output by the noise analysis model, compare the ocean noise coefficient Zy with the minimum ocean noise preset coefficient Zymin and the maximum ocean noise preset coefficient Zymax, judge the ocean noise situation based on the comparison results, and fine-tune the correction process of the output of the emergency plan based on the judgment results; A jet vacuum control module, configured to output a control plan according to an emergency plan and control the jet vacuum pump according to the control plan; The control feedback module is used to adjust the control scheme according to the sufficient thermal energy.

2. The petrochemical energy-saving control system based on jet vacuum according to claim 1 is characterized in that: When the energy-saving recovery analysis module calculates the recovered hot gas stability coefficient based on the pre-processed chemical data, the hot gas stability coefficient calculation method includes: Step A1: Calculate the instantaneous heat power Qsi of the exhaust gas based on the exhaust gas flow rate mi, exhaust gas temperature Ti, exhaust gas average constant pressure specific heat capacity Cp, and minimum exhaust gas available temperature Tmin in the pre-processed chemical data. Set Qsi = mi × Cp × (Ti - Tmin) to obtain the instantaneous heat power Qsi of the exhaust gas. Step A2: Based on the instantaneous heat power Qs of the exhaust gas i Calculate the average thermal power Qp and the total number of acquisition points N, and set , get the average thermal power Qp; Step A3: Based on the instantaneous heat power Qs of the exhaust gas i , average thermal power Qp and total number of acquisition points N to thermal power standard deviation Calculate and set , get the standard deviation of thermal power ; Step A4: Based on the standard deviation of thermal power Calculate the coefficient of variation CV with the average thermal power Qp, and set CV= / Qp, to obtain the coefficient of variation CV; Step A5, calculating the recovered hot gas stability coefficient S according to the coefficient of variation CV, setting S=1 / (1+CV), and obtaining the recovered hot gas stability coefficient S; The energy-saving recovery analysis module compares the recovered heat stability coefficient S with the preset heat stability coefficient S0, and judges the thermal energy stability state according to the comparison result, and outputs the thermal energy sufficiency according to the judgment result, wherein: When S≤S0, the energy-saving recovery analysis module determines that the thermal energy stable state is unstable and outputs insufficient thermal energy as sufficient thermal energy; When S>S0, the energy-saving recovery analysis module determines that the thermal energy stable state is stable, and outputs sufficient thermal energy as a sufficient thermal energy situation.

3. The petrochemical energy-saving control system based on jet vacuum according to claim 2 is characterized in that: When the energy-saving recovery analysis module determines that the heat energy is sufficient, it calculates the recovered heat ratio Q1 according to the recovered heat storage capacity Q and the preset recovered heat storage capacity Q0, sets Q1=Q / Q0, compares the recovered heat ratio Q1 with the preset recovered heat ratio Q2, judges the energy supply participation status according to the comparison result, and outputs the energy supply participation status according to the judgment result, wherein: When Q1>Q2, the energy-saving recovery analysis module determines that the energy supply participation state is participating in energy supply, and outputs participating in energy supply as the energy supply participation state; When Q1≤Q2, the energy-saving recovery analysis module determines that the energy supply participation state is not participating in energy supply, and outputs not participating in energy supply as the energy supply participation state.

4. The petrochemical energy-saving control system based on jet vacuum according to claim 3 is characterized in that: When the original pump state analysis unit outputs the centrifugal pump fault condition according to the pre-processed chemical data, the instantaneous value V of the vibration speed in the pre-processed chemical data is used. k Calculate the vibration severity Vx and the number of vibration sampling points L, and set , compare the vibration severity Vx with the preset vibration severity Vx0, and judge the vibration state of the centrifugal pump based on the comparison result, and output the centrifugal pump fault condition based on the judgment result, where: When Vx≤Vx0, the original pump state analysis unit determines that the vibration state of the centrifugal pump is normal vibration, and outputs no fault as a centrifugal pump fault condition; When Vx>Vx0, the original pump state analysis unit determines that the vibration state of the centrifugal pump is abnormal vibration, and outputs a fault as a centrifugal pump fault condition.

5. The petrochemical energy-saving control system based on jet vacuum according to claim 4 is characterized in that: When the original pump state analysis unit determines that the vibration state of the centrifugal pump is abnormal vibration and outputs a fault as a centrifugal pump fault condition, the drilling platform data in the pre-processed chemical data is input into the sea condition hazard judgment model to obtain a hazard coefficient α output by the sea condition hazard judgment model, and compares the hazard coefficient α with a preset hazard coefficient α0. The hazard condition is judged according to the comparison result, and the sea condition hazard condition is output according to the judgment result, wherein: When α≤α0, the original pump state analysis unit determines that the dangerous situation is not dangerous and outputs the non-dangerous situation as a dangerous sea situation; When α>α0, the original pump state analysis unit determines that the dangerous situation is dangerous and outputs the danger as a dangerous sea condition.

6. The petrochemical energy-saving control system based on jet vacuum according to claim 5 is characterized in that: When the original pump state analysis unit determines that the vibration state of the centrifugal pump is abnormal vibration and outputs a fault as a centrifugal pump fault, it also detects the redundancy of the centrifugal pump and outputs an emergency plan based on the detection result, wherein: When the redundancy of the centrifugal pump is detected to be redundant and the dangerous sea condition is not dangerous, the original pump state analysis unit sends a signal of not performing jet vacuum control to the jet vacuum control unit as an emergency plan output; When the redundancy of the centrifugal pump is detected as redundant and the sea condition is dangerous, the original pump state analysis unit replaces the centrifugal pump determined to be faulty with a redundant centrifugal pump as an emergency plan; When the redundancy of the centrifugal pump is detected as no redundancy and the sea condition is dangerous, the original pump state analysis unit obtains the sufficient heat energy output by the energy-saving recovery analysis module, wherein: If the thermal energy is sufficient, the original pump state analysis unit sends a signal for jet vacuum control to the jet vacuum control unit as an emergency plan output; If the heat energy is insufficient, the original pump state analysis unit sends an alarm signal to the staff as an emergency plan output; When the redundancy of the centrifugal pump is detected to be non-redundant and the sea condition is not dangerous, the original pump state analysis unit obtains the energy supply participation state output by the energy-saving recovery analysis module, wherein: If the energy supply participation state is not participating in energy supply, the original pump state analysis unit sends the gas heat energy as an energy supply signal to the jet vacuum control unit, and supplements the redundant centrifugal pump as an emergency plan output; If the energy supply participation status is participating in energy supply, the original pump status analysis unit determines that the centrifugal pump failure is a faulty centrifugal pump and replaces it with a new centrifugal pump, and supplements the redundant centrifugal pump as an emergency plan.

7. The petrochemical energy-saving control system based on jet vacuum according to claim 6 is characterized in that: When the state analysis and adjustment unit corrects the judgment process of the energy supply participation state according to the pre-processed chemical data, When γ≤γ0, the state analysis and adjustment unit determines that the service life redundancy is sufficient, corrects the output process of the emergency plan, and corrects the preset recovery heat ratio Q2 by the first correction coefficient Jz1, setting Jz1=0.85+0.10×e -(γ0-γ) , e is the base of the natural logarithm, and the preset recovered heat ratio Q2j after correction is obtained. Set Q2j=Jz1×Q2, replace the preset recovered heat ratio Q2 with the preset recovered heat ratio Q2j after correction, and re-compare the recovered heat ratio Q1 with the preset recovered heat ratio Q2j after correction to obtain the new energy supply participation status, and re-output the emergency plan based on the new energy supply participation status; When γ>γ0, the state analysis and adjustment unit determines that the service life redundancy is insufficient, and corrects the output process of the emergency plan. The correction method is to replace the emergency plan when the redundancy of the centrifugal pump is detected to be no redundancy, the sea condition is not dangerous, and the energy supply participation status is not participating in energy supply with: the original pump state analysis unit replaces the centrifugal pump that is determined to be faulty with a new centrifugal pump, and supplements the redundant centrifugal pump.

8. The petrochemical energy-saving control system based on jet vacuum according to claim 7 is characterized in that: When the sea area noise detection and compensation unit performs fine calibration on the correction process of the output of the emergency plan according to the noise data, the following steps are performed: When Zy≤Zymin, the ocean noise detection and compensation unit determines that the ocean noise situation is low noise, and does not perform fine calibration on the correction process of the output of the emergency plan; When Zymin<Zy≤Zymax, the sea noise detection and compensation unit determines that the ocean noise situation is medium noise, and fine-calibrates the correction process of the output of the emergency plan. The first correction coefficient Jz1 is fine-calibrated by the first fine-calibration coefficient Jj1, and Jj1=0.77+0.13×e -(Zy-Zymin) , obtain the second correction coefficient Jz2, set Jz2=Jj1×Jz1, replace the first correction coefficient Jz1 with the second correction coefficient Jz2, and correct the preset recovery heat ratio Q2 by the second correction coefficient Jz2; When Zy>Zymax, the sea noise detection and compensation unit determines that the ocean noise situation is high noise, and fine-calibrates the correction process of the output of the emergency plan. The first correction coefficient Jz1 is fine-calibrated by the second fine-calibration coefficient Jj2, and Jj2=0.5+0.2×e -(Zy-Zymax) , obtain the second correction coefficient Jz2, set Jz2=Jj2×Jz1, replace the first correction coefficient Jz1 with the second correction coefficient Jz2, and correct the preset recovery heat ratio Q2 by the second correction coefficient Jz2.

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