1095 results about "Pump pressure" patented technology

The invention relates to the technical field of temperature regulation and control, in particular to a liquid cooling control method and system of a battery control device, in the liquid cooling control method and system, through real-time collection and area screening of temperature and power data, accurate recognition of a high-temperature area is achieved, a clear cooling requirement partition is provided, and the cooling requirement of a battery is met. A dynamic adjustment strategy of pressure and flow parameters of the liquid cooling pump is optimized through a genetic algorithm, the cooling response speed and control precision are improved while energy consumption and cooling efficiency are effectively balanced, the pump speed and the valve opening degree are adjusted in real time, temperature changes are rapidly responded through automatic control, gradual implementation of a cooling target is ensured, and the cooling efficiency is improved. The hysteresis in the heat management process is reduced, the temperature control effect is continuously evaluated through a fuzzy control algorithm, the cooling intensity is dynamically adjusted according to the monitoring result, efficient cooling is ensured, meanwhile, equalization of temperature distribution is achieved, and a systematic heat management framework is established through long-term data monitoring and continuous optimization of cooling operation. And efficient and stable operation of temperature management is realized.

The invention provides a method for regulating and controlling technical parameters in a continuous preparation process of a filling material, and relates to the technical field of mine filling automatic control. According to the method, aiming at the condition that the material level of the stirrer is in a safety interval, pumping pressure-stirrer material level double-rate interval control is adopted, that is, the material level of the stirrer is maintained in a safety range required by a process, and meanwhile, the pumping pressure for conveying a filling material required by underground filling is ensured; after the pumping pressure and the material level of the stirrer are both stable, aiming at the condition that the concentration of the slurry pump is not in a set concentration range, adopting concentration fuzzy PID control, and adjusting the concentration of the slurry pump until the concentration is stable in the set range; aiming at the conditions that the concentration of a slurry pump is in a set concentration range and the frequency of a stirrer is in a normal operation range, torque fuzzy PID control is adopted, the frequency of the stirrer is adjusted, and energy conservation and emission reduction are achieved on the premise that the shear stress of a filling material is stabilized.

The invention relates to the technical field of data processing, in particular to a high-pressure water pump pressure compensation method based on real-time data analysis, which establishes a prediction model of input water pressure change based on historical water pressure data, and can effectively capture a long-term dependency relationship in time sequence data. Therefore, the prediction precision of the future water pressure change trend is improved, the high-precision prediction capacity enables a high-pressure water pump control system to make adjustment in advance, more accurate pressure compensation is achieved, and the prediction precision of the water pressure change trend can be improved according to an error signal between real-time input water pressure data and a preset pressure target value. The rotating speed of the driving motor and the opening degree of the mechanical valve are dynamically adjusted to ensure that the actual output water pressure is always close to a target value, so that efficient closed-loop control is realized.

A method for grouping hydraulic functions associated with an agricultural implement includes accessing parameter data associated with hydraulic fluid used to drive a plurality of hydraulic functions of the implement, the hydraulic fluid being supplied from one of at least two pumps. The method also includes determining delivery pump pressures for the pumps for each of a plurality of different pump / function combinations based at least in part on the hydraulic parameter data and determining a power parameter requirement for the pumps for each of the different pump / function combinations based at least in part on the delivery pump pressures. In addition, the method includes selecting a desired pump / function combination based at least in part on the power parameter requirement; and controlling an operation of a plurality of switching valves such that the hydraulic fluid is supplied for driving the hydraulic functions in accordance with the desired pump / function combination.

The invention discloses a high-precision water pump pressure controller which comprises a pump box, a centrifugal impeller and an adjusting ring set. A bearing frame is arranged on one side of the pump box, a vortex tube and a lining plate are arranged on the surface of the pump box, a rotating speed sensor and a flow speed sensor are arranged on the inner side of the bearing frame and the inner side of the vortex tube respectively, a pressure sensor is arranged on the lining plate, and the output end of the sensor is electrically connected to a data processing module. The centrifugal impeller comprises a wheel seat, a sliding ring, centrifugal blades and a synchronous gear ring, and the centrifugal blades are meshed with a worm gear rack of the synchronous gear ring through transmission tooth grooves. The adjusting ring set comprises a sliding rod, a joint ring and a hand rotating ring and is used for controlling the synchronous gear ring to rotate so as to drive the centrifugal blades to deflect to adjust the exposed area of the centrifugal blades, and therefore dynamic adjustment of pressure output is achieved. The system can realize real-time monitoring and fusion analysis of parameters such as rotating speed, flow velocity and pressure, has the advantages of fast response, high adjustment precision, strong system stability and the like, and is suitable for a precise fluid conveying system.

The invention discloses an extensible water pump digital twinborn body construction method, and particularly relates to the field of digital twinborn, and the method comprises the steps: S1, constructing a physical model, S2, collecting water pump performance data, S3, preprocessing the water pump performance data, S4, constructing a water pump digital twinborn model, S5, applying the water pump digital twinborn model, and S6, optimizing a water pump digital twinborn body. The water pump digital twinborn model is constructed according to multiple dimensions of water pump flow data, water pump pressure data and water pump operation data, the model is continuously improved according to the actual operation condition of the water pump, the expandability of the water pump digital twinborn body is achieved, the water pump digital twinborn model can also conduct safety monitoring on a water resource allocation project, and the water resource allocation project safety is improved. And different running conditions of the water pump are judged, and different response results are made, so that the engineering safety is further improved.

The invention discloses a movable trolley for secondary grouting of a double-shield TBM, and belongs to the technical field of tunnel construction equipment. In order to solve the problems of non-uniform slurry mixing, inaccurate grouting pressure control, low automation degree and the like of existing double-shield TBM secondary grouting equipment, a slurry storage system and a grouting execution system are borne through a movable supporting table, and the slurry storage system achieves slurry storage and stirring regulation and control through double storage tanks, a spiral stirring paddle and a liquid level monitoring module; the grouting execution system achieves accurate pressure control through cooperation of a double-outlet grouting pump, a pressure sensor and a frequency converter. The central controller receives liquid level and pressure signals and intelligently regulates and controls the rotating speed of the stirring paddle, the rotating speed of the grouting pump and switching of the slurry storage tank. The movable trolley is mainly used for secondary grouting operation in the double-shield TBM construction process, the grouting efficiency and quality can be improved, and tunnel construction safety and stability are guaranteed.

The invention provides a concentration analyzer automatic cleaning system for an explosion-proof area and a control method.The concentration analyzer automatic cleaning system comprises a brush cleaning unit, a high-pressure water cleaning unit, an ultrasonic cleaning unit, a cleaning pollution judging unit and a data interaction interface, and a brush assembly arranged in the brush cleaning unit is installed on one side of an optical window of a refractometer; a brush assembly is arranged in the window to ensure that the brush covers the surface of the window, a driving unit of the brush assembly performs data interaction with the data interaction interface, a plurality of parameters are built in the driving unit, the driving unit controls the movement speed and driving pressure of the brush in the brush assembly, and adjustment is performed by receiving a control instruction of the data interaction interface; a high-pressure pump, nozzles and a connecting pipeline are arranged in the high-pressure water cleaning unit, the nozzles are arranged around an optical window of the refractometer and connected with the high-pressure pump through the connecting pipeline, a control unit is arranged on the high-pressure pump, and water pump pressure parameters and time interval parameters are preset in the control unit.

The application discloses a processing method of gel candies, and belongs to the technical field of gel candies. The method comprises a control unit with multiple independent pouring units, each pouring unit comprising a pouring head and a temperature control module, and the following steps are performed: S1: initial sensing and parameter setting; S2: a staged dynamic pouring step; S201: a starting stage, in which pouring is started at P0 and the F0, and lasts for a predetermined starting time Δt1; S202: a stable stage, in which after Δt1 ends, a control mode based on real-time viscosity feedback is switched to, the heating power is adjusted to maintain the real-time viscosity μ of the material in a target range [μ min , μ max ], and pouring is performed at a basic pump pressure F base . Through the staged dynamic control, the application realizes the precision and high efficiency of the gel candy pouring process.

The utility model discloses energy-saving full-automatic variable-frequency constant-pressure water supply equipment, which relates to the technical field of water supply equipment and comprises a pressure tank, a water inlet flange is fixedly arranged at the top end of the pressure tank, a water outlet pipe is fixedly arranged at the bottom end of the pressure tank, and an extension pipe is fixedly arranged at one end of the water outlet pipe. And a plurality of water pumps are arranged on one side of the pressure tank. The pressure tank and the water pump are arranged and connected in series, the water pump can pressurize water in the pressure tank in the water supply process so as to ensure that the water pressure of a pipe network is constant, and the filter screen is arranged in the pressure tank and is of a C-shaped structure, so that the water pressure of the pipe network is kept constant in the water filtering process. Impurities can be collected in the filter screen, so that the filter screen is convenient to disassemble and clean, and the design of the C-shaped structure can prevent the impurities from falling off in the disassembly process of the filter screen, so that the water quality in the equipment can be prevented from being influenced by the disassembly of the filter screen.

An electric pump pressure type liquid oxygen methane rocket main and auxiliary power integrated system adopts an electric pump to pressurize a low-pressure propellant in a rocket storage tank, the pressurized propellant can be controlled to enter an attitude and orbit control engine or return to the rocket storage tank through reversing of a reversing valve, and if the reversing valve continuously supplies the propellant into the attitude and orbit control engine, the propellant can enter the attitude and orbit control engine; continuous and stable work of the attitude and orbit control engine can be realized; if the reversing valve supplies propellants into the attitude and orbit control engine and then immediately switches to the rocket storage tank, pulse work of the attitude and orbit control engine can be achieved through circulation. The reversing valve can keep the electric pump in a normal circulation state at the downstream moment, and the electric pump can work normally and stably no matter whether the attitude and orbit control engine works stably or in a pulse mode. The cavitation pipe is installed in front of the reversing valve, when the attitude and orbit control engine works in a pulse mode, the rotating speed and the power of the electric pump are kept unchanged, the pressure and the flow behind the pump can be constant, the flow entering the attitude and orbit control engine is constant, and it can be guaranteed that thrust generated by the attitude and orbit control engine in each pulse work is constant.

The invention discloses a raw water purification treatment system and a working method thereof, and solves the problem of how to design water treatment equipment which is simple in structure and small in occupied area. Comprising a raw water storage tank (1), the raw water storage tank (1) is connected with a water guide pipe (2), the other end of the water guide pipe (2) is connected with a water collecting pipe (8), the water collecting pipe (8) is connected with a cyclone separation device used for clarifying raw water, and the water guide pipe (2) is sequentially connected with a water outlet valve (3), a booster pump (4), a pressure gauge (5), a pump valve (6) and a pipeline mixer (7) in series. A coagulant filling pipe (9) is arranged on the water guide pipe (2) between the water outlet valve (3) and the booster pump (4); a coagulant aid filling pipe (10) is arranged at a water inlet of the pipeline mixer (7); the process of raw water dosing clarification is simplified, a clarification tank is replaced, and the site space and the construction cost of the clarification tank are saved.

The invention provides an electric pump pressure type liquid rocket engine and a carrier rocket. The electric pump pressure type liquid rocket engine comprises a gas-driven generator system, an electric pump pressure type liquid rocket engine body and an energy management system, and the gas-driven generator system is electrically connected with the energy management system; and the electric pump pressure type liquid rocket engine is electrically connected with the energy management system. According to the technical scheme, the rocket is prevented from carrying a large-mass battery through the generator system, and the highest-efficiency operation of the generator under all working conditions is realized through the energy management system. According to the technical scheme, the energy loss is small, the structural mass is light, the development and application cost of the carrier rocket is reduced, and the reliability of the carrier rocket is improved.

The utility model provides a coiled tubing bottom packer and a coiled tubing dragging fracturing process pipe column with a bottom seal, the coiled tubing bottom packer comprises a core shaft, an anti-jacking anchoring mechanism, a rubber sleeve and a seat clamping tile, the left end of the core shaft is connected with an upper joint, and a packing sealing assembly is installed at the right end of the core shaft; the anti-jacking anchor fluke mechanism comprises an anchor fluke base and an anchor fluke, the anchor fluke is installed in the anchor fluke base, an inner hole is formed in the left end of the anchor fluke base in the axial direction, and the packing sealing mechanism can be fixed in the inner hole; the rubber sleeve is installed on the anchor fluke base, the rubber sleeve has a certain elastic deformation performance and can expand and contract, a cone is arranged on the right side of the rubber sleeve, and a seating slip is arranged on the right side of the cone. The coiled tubing dragging fracturing process pipe column with the bottom seal comprises the coiled tubing bottom packer. According to the coiled tubing bottom packer, coiled tubing bottom seal dragging fracturing construction can be continuously carried out under a high pump stopping pressure block.

The invention discloses a multistage self-locking type ball catching circulating short section for half-way well cementation and a control method, and relates to the technical field of oil well cementation operation, the multistage self-locking type ball catching circulating short section comprises a short section assembly, the short section assembly comprises an outer shell, a discharge port is formed in the top of the outer shell, a displacement assembly is arranged in the outer shell, and the short section assembly comprises a sliding sleeve connected into the outer shell in a sliding mode; a containing groove is formed in the outer ring of the sliding sleeve, a first ball is slidably connected into the containing groove, an upper connector is fixed to one end of the outer shell, and a lower connector is fixed to the other end of the outer shell. The non-return structure has the beneficial effects that through the arrangement of the short section assembly and the limiting assembly, after the second ball body is put in, the displacement assembly can be driven to slide and displace in cooperation with continuously-fed media and pumping pressure, non-return locking operation is completed, the second ball body is prevented from being disengaged at will, the bypass requirement is well met, and compared with a traditional spring and rubber part non-return structure, the non-return structure is simple in structure and convenient to use. The stability is better, and the well cementation operation is well carried out.

The invention provides a popcorn sole forming machine facilitating mold forming and discharging, and relates to the technical field of shoe material production equipment. The popcorn sole forming machine facilitating mold forming and discharging comprises a machine table, a shoe mold used for forming a sole, a hydraulic device used for driving the shoe mold to be closed and separated, a compressed air control device, a feeding device, a water vapor control device, a cooling water control device and a controller. The oil spraying device is arranged in the machine table, before forming, the second air cylinder drives the atomization spray head to move above the forming cavity at a constant speed, the micro flow pump extracts the release agent, then the release agent is sprayed out through the atomization spray head under pumping pressure to form uniform mist, and the release agent can form a uniform film shape on the surface of the forming cavity; the oil spraying device is driven by the first air cylinder to be stored in the rectangular opening during production, the upper surface of the movable plate is flush with the upper wall of the machine table, and production operation is not affected.

The invention provides a rheological parameter regulation and control method in a continuous preparation process of a paste filling material, and relates to the technical field of mine filling processes. According to the method, aiming at the condition that the material level of the stirrer is in a safety interval, pumping pressure-stirrer material level double-rate interval control is adopted, that is, the material level of the stirrer is maintained in a safety range required by a process, and meanwhile, the pumping pressure for conveying a filling material required by underground filling is ensured; after the pumping pressure and the material level of the stirrer are stabilized, aiming at the condition that the paste concentration is not in a set concentration range, paste concentration-stirrer torque double-rate interval control is adopted, and the paste concentration, the stirrer frequency and the stirrer torque are regulated to be stabilized in the set range; the prepared paste material has stable rheological property while having stable concentration. According to the method, a multi-parameter accurate regulation and control technology is adopted, and continuity, automation and intelligentization of the mine filling process are achieved.

A method for grouping hydraulic functions associated with an agricultural implement includes accessing parameter data associated with hydraulic fluid used to drive a plurality of hydraulic functions of the implement, the hydraulic fluid being supplied from one of at least two pumps. The method also includes determining delivery pump pressures for the pumps for each of a plurality of different pump / function combinations based at least in part on the hydraulic parameter data and determining a power parameter requirement for the pumps for each of the different pump / function combinations based at least in part on the delivery pump pressures. In addition, the method includes selecting a desired pump / function combination based at least in part on the power parameter requirement, and controlling an operation of a plurality of switching valves such that the hydraulic fluid is supplied for driving the hydraulic functions in accordance with the desired pump / function combination.

The invention discloses a dredge pump power monitoring and controlling method during long-distance complex slurry conveying of a trailing suction dredger, which comprises the following steps of: firstly, monitoring parameters, mounting a slurry densimeter, a pressure transmitter and a flow meter at an outlet of a dredge pump pipeline, collecting the slurry density rho, the pump pressure P and the flow velocity v in real time, measuring the density by the slurry densimeter; the pressure transmitter obtains pressure data, and the flow meter monitors flow. Secondly, pipe blockage risk judgment and power adjustment are carried out, judgment is carried out through two modes, and in the first mode, flow length related pipeline loss judgment is calculated based on the real-time density rho and the flow velocity v in combination with the collection time interval; in the second mode, the total pipeline resistance is calculated through a fitting formula based on the density rho and the flow velocity v under the rated flow and compared with the pump pressure P for judgment. The power of the dredge pump is increased immediately when the pipe blocking risk is judged in any mode; collecting data every 30 minutes after the self-dredge pump is started for 30 minutes, and adjusting the constant A according to the relationship between the density and the viscosity when the accumulated flow length reaches a specific condition; the method can ensure smooth conveying of the slurry and improve the construction efficiency and the equipment safety.

The invention relates to the technical field of automatic control of drilling parameters, in particular to a coal bed gas underground drilling construction parameter optimization method and system.The method comprises the following steps that sound wave response signals are obtained, propagation characteristics are calculated, bit pressure data are aligned, abnormal fluctuation is recognized, pumping pressure information is extracted, and the change trend is analyzed; and comparing the consistency of the regulation and control points and organizing regulation and control actions to finally form a coal-bed gas well drilling parameter optimization control flow. According to the method, accurate calibration of an abnormal state is achieved by constructing a sound wave propagation delay sequence and synchronizing bit pressure response, key regulation and control fragments are recognized in combination with a pumping pressure change trend, a time sequence coupling relation between bit pressure and pumping pressure is established, regulation and control action combinations meeting response consistency are extracted, and sequential organization is conducted; a control instruction set with continuity and pertinence is formed, collaborative recognition and linkage regulation and control of multi-parameter change trends are achieved, and stability and response coordination in the construction process are improved.

The utility model relates to an internal-spraying and internal-inflow grille decontamination machine which comprises a rack, a water inlet is formed in one side of the rack, the other side, opposite to the water inlet, of the rack is arranged in a closed mode, two opposite conveying chains are rotationally arranged on the rack, a filtering grid belt is arranged between the two conveying chains in a sleeving mode, a pressure cleaning pump is arranged on the rack, and a water inlet is formed in the other side of the rack. The output end of the pressure cleaning pump is connected with a pressure nozzle through a hose. The device has the effect of preventing impurities from blocking the grating.

The invention relates to the technical field of engineering machinery control, in particular to a fuel efficiency optimization method and system based on multi-modal visual fusion, and the method comprises the steps: obtaining an environment image around engineering machinery, generating a disparity map, and carrying out the three-dimensional reconstruction; according to the reconstructed image and a pre-stored engineering machinery joint model, obtaining three-dimensional coordinates and spatial postures of the movable arm joint; classifying the current working conditions of the engineering machinery according to the three-dimensional coordinates and the spatial attitude of the movable arm joint, the state parameters of the engineering machinery and the reconstructed image, and determining the action states and slope repairing angles under different working condition types; and according to the working condition type, the action state and the slope repairing angle, based on a pre-constructed fuel mapping database, obtaining a corresponding load intensity coefficient, an engine rotating speed, a main pump pressure, a fuel supply correction coefficient and torque compensation, and adjusting the current state parameters of the engineering machinery to realize fuel optimization.

A dam termite nest integrated positioning grouting killing device and method comprises a drilling grouting device, the drilling grouting device is connected with a pressure pump through a first connecting pipe, the pressure pump is connected with a submersible pump and a water pipe through a three-way pipe, the water pipe is connected with a stirring tank through a fourth connecting pipe, and termite nest filler is arranged in the stirring tank. The termite nest filling agent is connected with a pressure pump through a sludge pump and is poured and filled into a dam termite nest through a drilling and grouting device; the drilling grouting device is provided with a lifting drill bit, the lifting drill bit is of a hollow structure and communicated with the first connecting pipe, and the lifting drill bit is connected with one or more hollow drill pipes. The termite nest located in the dam is accurately found through the drilling and grouting device, then the termite nest filler is used for filling to complete the grouting and killing function, positioning is accurate, the killing effect is good, and the dosage of chemicals is small.

The present application relates to a kind of fracturing perforation position selection method, belong to a kind of coalbed gas horizontal well development technical field, specifically relates to a kind of coal seam roof horizontal well fracturing perforation position selection method.The present application provides new method and train of thought for the optimal perforation position of coal seam roof horizontal well, can reduce the problem of pump pressure being too high, sanding difficulty in reservoir reconstruction process, improve the reconstruction efficiency of coal seam.

The invention discloses a portable phenylalanine detector and a use method thereof, and belongs to the technical field of phenylalanine detection equipment.The portable phenylalanine detector comprises a liquid chromatograph body, the liquid chromatograph body comprises a plurality of detection units, the upper side wall of the detection unit on the uppermost side is fixedly connected with a pressure pump, and the upper side wall of the detection unit on the uppermost side is fixedly connected with a pressure sensor; the water outlet end of the pressure pump is fixedly connected with a liquid inlet pipe communicated with the uppermost detection unit, the upper side wall of the uppermost detection unit is fixedly connected with a storage box, the storage box is divided into a water storage area and a sample area, and cleaning water and a sample storage bottle are arranged in the water storage area and the sample area respectively. A conveying pipe is fixedly connected between every two adjacent detection units, and a liquid discharging pipe is fixedly connected to the detection unit on the lowermost side. And through the one-by-one detection assembly, the worker is helped to quickly deduce which section of pipeline and the adjacent detection unit are blocked.

The invention relates to the technical field of concrete fluidity regulation and control, in particular to a design method for realizing concrete fluidity optimization through viscosity regulation and control, which comprises the following steps: S1, determining the proportion range of each component of the required concrete according to the strength grade; s2, inputting the environment and process parameters into a pre-constructed required viscosity prediction model to obtain the required viscosity of the concrete corresponding to the environment and process parameters; s3, inputting the proportion of the cement, the coarse aggregate, the fine aggregate, the fly ash, the mineral powder, the silica fume, the water and the water reducing agent into a pre-constructed concrete viscosity prediction model to obtain concrete predicted viscosity; s4, comparing the required viscosity with the concrete predicted viscosity; the viscosity of the concrete in different proportions and the required viscosity under the condition that the environment and process parameters are determined can be predicted, and the common problems of overhigh pump pressure, pumping difficulty and pump blockage in elevation concrete pumping engineering are effectively solved.

The invention discloses a flow demand control method and device for electric engineering machinery, and the method comprises the steps: determining a pilot handle opening value according to a pilot handle opening voltage value; according to the pilot handle opening value and a preset hydraulic oil demand response characteristic value, a hydraulic oil demand flow value is obtained; a main pump pressure value is obtained, the hydraulic oil demand flow value is dynamically corrected according to the main pump pressure value, and a corrected flow value is obtained; and the current of the first proportional valve is adjusted according to the corrected flow value, and the opening value of the first proportional valve is controlled. The flow demand is corrected in real time through the main pump pressure, high-pressure working condition overpower output is avoided, the overflow frequency is reduced, and dynamic pressure correction is achieved.

The invention relates to the technical field of oil and gas field development, and discloses a method and system for processing a shale gas fracturing pump stopping curve, and the method comprises the steps: calculating an envelope line with a water attack effect part based on an original pump stopping pressure curve, and then processing original pressure data into a plurality of decomposition variables and a residual variable based on the envelope line; the obtained residual variable is regarded as a pressure curve after the water attack effect is eliminated. The problems that the water attack effect cannot be eliminated and the accuracy is low in the prior art are solved.

The invention relates to the technical field of intelligent sand supply, in particular to an intelligent dynamic fracturing sand supply system and method, and the system comprises a liquid supply data acquisition module, a pumping pressure boundary identification module, a target sand ratio correction module, a supply and demand speed difference adjustment module and a control parameter feedback module. According to the method, fluctuation nodes can be identified and key changes can be captured by acquiring the pressure and time information of the fracturing process and constructing the index sequence, so that flow abnormality is prevented from being neglected, pressure differences are compared, trigger signals are generated, sand ratio parameters are dynamically corrected along with real-time pressure, supply and demand deviation caused by sand ratio imbalance is avoided, and the accuracy of the fracturing process is improved. The target sand supply rate is compared with the actual speed of the auger, the running state is corrected in time, over-supply or lag caused by speed difference accumulation is reduced, sand supply execution and the target rate are correspondingly arranged in the time dimension, a closed-loop feedback relation is formed, the sand supply process has the self-adaptive adjustment capacity, stability and accuracy are improved, and the sand supply efficiency is improved. And quick response to sudden working conditions is enhanced, and the risk of manual intervention is reduced.

The invention relates to the technical field of a multi-field coupling simulation shield pump pressure-bearing component service life prediction method, particularly discloses a multi-field coupling simulation shield pump pressure-bearing component service life prediction method, and aims to solve the problem of service life prediction distortion caused by difficult accurate modeling of a nonlinear coupling effect in traditional single field domain analysis. The method comprises the following steps: constructing a three-dimensional self-adaptive grid model covering a pressure-bearing shell, a flange and a bearing seat; defining multi-physical field boundary conditions containing temperature gradient, pressure pulsation, electromagnetic excitation and time-varying creep parameters; and executing thermal electromagnetic full-coupling transient simulation to obtain a stress-strain evolution field. According to the method, through strong coupling modeling, time-varying constitutive embedding and data closed-loop correction, crack dynamic tracking and life rolling prediction under extreme working conditions are realized, and failure early warning perspectiveness and engineering decision reliability are remarkably improved.