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3690 results about "Water temperature" patented technology

Vehicle idling start and stop control system and method

The invention discloses a vehicle idling start and stop control system and method. The control system judges whether a vehicle has idling start and stop conditions by monitoring the water temperatureof an engine, the capacity of a storage battery, a safety belt and other information, judges whether the vehicle has conditions of stopping the engine by monitoring the rotating speed of the engine, the speed of the vehicle, the brake air pressure and other conditions, and judges whether the vehicle has conditions of starting the engine by monitoring the gear of a gearbox, the speed of the vehicle, a hand brake and other information. When the relevant conditions are met, start and stop work signals are sent to the engine though a CAN bus. In order to guarantee the reliability of frequent startand stop of the engine, the system strengthens flywheel gear rings of a starter and the engine. In order to ensure that the battery does not lose power, a storage battery capacity sensor is added tothe system on the basis of increasing the capacity of the storage battery, and the idling start and stop are allowed when the state of charge (SOC) of the storage battery satisfies a safe starting threshold. The idling start and stop control system has advantages of low cost and high reliability, and is especially suitable for commercial vehicles.
Owner:SHAANXI AUTOMOBILE GROUP

Aerobic aeration treatment system for plateau domestic sewage treatment

The invention relates to the technical field of sewage treatment, in particular to an aerobic aeration treatment system for plateau domestic sewage treatment, which comprises a pretreatment unit, a biological treatment unit, an advanced treatment unit and a recycling unit which are connected in sequence, the system further comprises a data acquisition module, an aerobic aeration intelligent regulation and control module, a biochemical environment constant-temperature maintenance module, a carbon-nitrogen proportion and backflow dynamic regulation and control module, a digital twinning and sludge characteristic simulation module and an energy collaborative scheduling module. Compared with the prior art which adopts a standard aeration strategy and cannot adapt to the special environment of low air pressure and low oxygen partial pressure of the plateau, the system can accurately adapt to the plateau environment by integrating real-time atmospheric pressure and water temperature monitoring, dynamically calculating the oxygen saturation solubility and correcting the aeration control target according to the oxygen saturation solubility, so that the aeration control target is optimized. Stable supply of dissolved oxygen required by biochemical reaction is ensured, and the technical bottleneck of low efficiency of traditional sewage treatment in plateau regions is fundamentally overcome.
Owner:HUNAN ZHONGTUO ENVIRONMENTAL ENG CO LTD

Water plant intelligent dosage prediction method based on data preprocessing

The invention relates to a water plant intelligent chemical adding amount prediction method based on data preprocessing, and belongs to the technical field of deep learning and intelligent chemical adding. Calculating a theoretical dosage based on historical flow, pH, water temperature and turbidity; dividing a plurality of clusters and splicing to query historical dosage data; weighting and fusing the theoretical dosing amount and the inquired historical dosing amount as a pre-treatment dosing amount; learning the relationship among the flow, the pH, the water temperature, the turbidity and the pretreatment dosage to perform forward feedback optimization; building an alumen ustum image recognition model, classifying alumen ustum, and associating the alumen ustum with corresponding dosage to form a dosage feedback algorithm model; building a dosage feedback model based on the sedimentation tank outlet water quality monitoring data; and correcting the weight in the preprocessed dosage based on the adjusted data of alumen ustum identification and water quality feedback on the dosage. The method can effectively reduce the influence of the dosage data error on the effectiveness of the model, can reduce the complexity of the algorithm model, and improves the robustness of the model.
Owner:SHANDONG FENGSHI INFORMATION TECH CO LTD

Water-cooling energy consumption self-adaptive regulation and control method suitable for data center

The invention discloses a water-cooling energy consumption adaptive regulation and control method suitable for a data center, and the method comprises the following steps: obtaining a multi-dimensional operation parameter set of the data center in real time, and generating a real-time thermal load density distribution diagram reflecting the heat distribution condition in a machine room; calculating the overall thermal deviation degree and the local hot spot intensity, and solving through a dynamic energy efficiency optimization function to obtain a target system supply and return water temperature difference and a target cooling liquid flow; inputting into a hydraulic and thermodynamic simulation model, and generating an optimal multi-device coordinated regulation instruction set; and executing the multi-device coordinated regulation instruction set, and then performing parameter calibration on the hydraulic and thermodynamic simulation model. The method has the following advantages and effects that the thermal environment of the machine room can be sensed in real time, the energy consumption and heat dissipation requirements can be intelligently balanced, and multiple devices in the cooling system can be cooperatively regulated and controlled, so that the overall energy consumption of the cooling system is optimized while the local overheating risk of the machine room is thoroughly eliminated.
Owner:SHENZHEN SENOS SUPPLY CHAIN CO LTD

Intelligent temperature adjusting system for industrial water chiller

The invention relates to the technical field of non-electrical variable control, and discloses an industrial water chiller temperature intelligent adjusting system, which comprises a refrigeration circulation loop and a control unit, the control unit calculates a steady state control component based on the water outlet temperature deviation, performs differential processing on the refrigerant pressure to extract the gradient, and outputs the gradient. Generating a transient compensation component when the gradient exceeds a dynamic noise threshold; according to the method, the problem of thermal lag is solved by utilizing the pressure wave transmission speed advantage, aggressive response is prevented from triggering low-pressure shutdown through a safety margin constraint mechanism, the pressure safety margin is calculated in real time, a gain coefficient is determined according to a nonlinear model, and a final driving instruction is generated. And the dynamic balance of the control response speed and the system physical security boundary is realized.
Owner:FUJIAN GENOHOPE BIOTECH LTD

Fishery pond water temperature control optimization method based on swarm intelligence algorithm

The invention discloses a fishery pond water temperature control optimization method based on a swarm intelligence algorithm, and belongs to the technical field of control optimization, and the method comprises the following steps: S1, constructing a fishery pond water temperature PID control system introducing an improved single-corner whale optimization algorithm module; s2, introducing an improved single-corner whale optimization algorithm, and constructing an improved single-corner whale optimization algorithm module; s3, setting and optimizing the pond water temperature PID control parameters by using an improved single-corner whale optimization algorithm to obtain optimal control parameters; and S4, setting an optimal control parameter obtained through optimization by using the improved single-corner whale optimization algorithm as a parameter of a pool water temperature PID controller, and optimizing a pool water temperature regulation control effect. According to the method, a swarm intelligent optimization algorithm, namely an improved unicorn whale optimization algorithm, is introduced, high-performance control over the pond water temperature is achieved, and reliable control technical support is provided for efficient, stable and safe operation of aquaculture.
Owner:FRESHWATER FISHERIES RES INST OF SHANDONG PROVINCE

Bioreactor aeration self-adaptive control method and system based on machine learning

The invention provides a bioreactor aeration self-adaptive control method and system based on machine learning, and the method comprises the steps: collecting the water inlet flow, ammonia nitrogen concentration, dissolved oxygen concentration, water temperature and chemical oxygen demand data of a bioreactor in real time through a sensor, and carrying out the water balance verification and the Kalman filtering pretreatment containing a water temperature compensation item; generating an aeration instruction by adopting multi-model collaboration; outputting a reference aeration rate by a deep reinforcement learning DRL model; the self-adaptive PID controller dynamically adjusts the proportionality coefficient according to the dissolved oxygen deviation and calculates the correction amount; and the LSTM network generates a fusion weight, and combines the seasonal compensation factor and the safety coefficient to synthesize the final aeration rate. The system passes mutation rate constraint and nitrification efficiency verification, an ASM1 model is triggered to recheck when the deviation exceeds the standard, and after passing, an air blower with the precision of + / -2% executes an instruction and performs closed-loop feedback in a period smaller than or equal to 10 seconds. After the method is implemented, the aeration energy consumption is reduced to 0.38 kWh / m, the effluent ammonia nitrogen standard reaching rate is improved to 98.5%, the dissolved oxygen fluctuation range is reduced to + / -0.3 mg / L, and the impact load response time is shortened to be within 15 minutes.
Owner:AOLIU (SHENZHEN) TECH CO LTD

Gas-fired boiler starting control method and system

The invention relates to the technical field of boiler control, and discloses a gas-fired boiler starting control method and system. The method comprises the following steps: acquiring initial operation parameters such as hearth pressure, water inlet temperature, flue gas oxygen content and fuel valve opening of the gas-fired boiler, establishing a thermodynamic state model in a starting stage according to the initial operation parameters, and dividing dynamic response thresholds of different load intervals; and calculating a theoretical fuel supply rate of the combustor based on the model, generating and dynamically updating a fuel supply correction coefficient in combination with a threshold value, synchronously marking key nodes according to abnormal distribution of hearth temperature, and adjusting a spatial air distribution strategy of the combustor. And after the correction coefficient is subjected to multi-stage buffer smoothing, a fuel control instruction is output to an executing mechanism. And switching to steady state control after the boiler reaches the preset load. The method adapts to the characteristics of a power plant unit, so that the starting process is more stable, the damage to a heated surface and pollutant emission are reduced, and rapid grid connection is assisted.
Owner:DATANG CHONGQING JIANGJIN GAS TURBINE POWER GENERATION CO LTD

Cold storage temperature optimization control system and method of chilled water storage air conditioning system

The invention discloses a cold storage temperature optimization control system and method for a chilled water storage air conditioning system, and relates to the technical field of chilled water storage air conditioning management.The method comprises the steps that 1, a plurality of operation parameters in the system operation process are collected; performing time synchronization and abnormal value elimination on the operation parameters to form a dynamic operation data set; and 2, judging the current hydraulic circulation state based on the dynamic operation data set, and outputting a circulation deviation signal when any index of the total flow of the system, the flow distribution of each branch or the temperature difference change rate of the supplied water and the returned water exceeds a set corresponding threshold value. By constructing the dynamic operation data set and monitoring key parameters such as the system temperature, the flow and the water pump operation state in real time, a unified multi-dimensional data basis is established, support is provided for follow-up operation state recognition and control strategy execution, and the real-time performance and accuracy of control are remarkably improved.
Owner:FOSHAN ZHENGYONG REFRIGERATION TECH CO LTD

Centralized heating balanced regulation and control method, device, equipment and medium

The invention relates to a centralized heating balanced regulation and control method, device and equipment and a medium. The method comprises the steps that firstly, the heat supply area of a user and the heat use state of a neighbor are collected, the basic flow of the jet device is calculated according to an industrial standard formula, and final flow containing resistance characteristic data is obtained through secondary correction by combining a neighbor heat use state correction coefficient and an environment temperature influence factor. Extracting flow and inlet and outlet pressure difference from jet device parameters, adjusting a valve to enable the resistance proportion to reach a preset interval, calculating parameters such as unit area heat consumption by combining real-time flow and supply and return water temperature difference, generating regulation and control basic data through coupling analysis, adjusting the jet device when the regulation and control basic data reach the standard, and generating a dynamic scheme by combining a thermal load prediction model. And finally, capturing the flow pulse signal according to a fixed period to calculate a difference value, generating a valve control signal according to a threshold value, acquiring the water supply and return temperature after execution, and coupling with a dynamic scheme to generate a regulation feedback signal. By adopting the method, accurate regulation and control can be realized through multi-dimensional analysis, and the flow distribution accuracy and the heat supply balance are improved.
Owner:XINMI DESHENG DRINKING WATER PLANT (GENERAL PARTNERSHIP)

Safety protection method based on dynamic monitoring of circulating flow of heat source equipment

The invention relates to a safety protection method based on dynamic monitoring of circulating flow of heat source equipment. The method comprises the following steps: collecting pipeline pressure data, circulating water flow data and circulating water temperature data in a circulating pipeline of heat source equipment through a multi-source sensor; inputting the circulation pipeline data into a preset heat source equipment state model to perform working condition evaluation so as to generate an equipment working condition report; performing fault feature extraction on the equipment working condition report, and identifying an abnormal operation mode according to the extracted fault features; in response to the identified abnormal operation mode, determining a fault type matched with the abnormal operation mode according to a preset fault type library; and based on the determined fault type, generating a corresponding control instruction by using a preset risk-instruction mapping rule. According to the invention, real-time monitoring of the operation state of the heat source equipment, automatic identification of abnormal modes and active safety protection control are realized.
Owner:雷海涛

Hydrothermal management system and method of fuel cell and fuel cell system

The invention discloses a hydrothermal management system and method of a fuel cell and a fuel cell system. A cooling water circulation subsystem comprises a water inlet pipeline, a water outlet pipeline and a circulation module; the circulating module is used for controlling the cooling water to circularly flow in the fuel cell; the hydrothermal control subsystem comprises a control module, a power supply module, a temperature adjusting module and a signal acquisition module; the power module is used for providing electric signals for the temperature adjusting module. The temperature adjusting module is used for adjusting the temperature in the fuel cell according to the power supply signal; the signal acquisition module is used for acquiring the water inlet temperature, the water outlet temperature and the battery plate temperature of the fuel cell; the control module is used for acquiring the temperature of the water inlet, the temperature of the water outlet and the temperature of the battery pole plate in real time, controlling the working state of the circulation module and controlling a power supply signal provided by the power supply module to the temperature regulation module, and the scheme realizes accurate regulation and control of the temperature of the fuel cell, improves the output performance of the fuel cell and prolongs the service life of the fuel cell.
Owner:SCHOOL OF JEWELRY WEST YUNNAN UNIV OF APPLIED TECH +1

Cascade power station connectivity fish monitoring method and system

PendingCN121144661ABarrages/weirsMeasurement devicesHydrometryVertex (graph theory)
The invention discloses a cascade power station connectivity fish monitoring method and system, and the method comprises the steps: collecting the water flow speed, water temperature, dissolved oxygen and other hydrological parameters of a water area cross section, the fish activity frequency data, the gate dam opening and closing state, and the pump set operation parameters through a sensing assembly; dividing a potential migration area; abstracting a water area node as a graph theory vertex, abstracting a connected state as an edge weight, and constructing a model to calculate node connectivity; according to the pump set parameters and connectivity indexes, calculating water area node connectivity probabilities under different pump set operation conditions; the number, body type distribution and motion trail of fishes are obtained through an image and acoustic module and are associated and matched with a migration area and a connectivity probability; and integrating multi-link data to generate a connectivity and fish activity relevance monitoring result. Functional units are arranged in all links of the corresponding method of the system, all the units operate cooperatively, cascade power station water area connectivity and fish activity association monitoring precision are improved, and data support is provided for drainage basin ecological protection.
Owner:ENVIRONMENTAL ENG ASSESSMENT CENT OF THE MINISTRY OF ECOLOGY & ENVIRONMENT

Control method for variable dew point air supply of all-air air conditioning system in summer

The invention relates to a variable dew point control method of an all-air air conditioning system, belongs to the technical field of heating ventilation air conditioners, and solves the technical problems of temperature and humidity coupling in the prior art and difficulty in landing of a chilled water temperature resetting technology. The control method comprises the steps of S1, parameter initialization, S2, system starting and stabilizing, S3, air supply dew point dynamic adjustment and cold water valve control, S4, temperature and air supply amount control and S5, fresh air optimization and air valve control. The water supply temperature is adjusted by dynamically adjusting the air supply dew point and dynamically increasing the temperature of the outlet of the surface air cooler, the energy efficiency of the unit is remarkably improved, and the system is suitable for the chilled water temperature resetting technology and compatible with the application of the medium-temperature water supply technology.
Owner:CHINA ARCHITECTURE DESIGN & RES GRP CO LTD

Gas water heater

The utility model belongs to the technical field of water heaters, and particularly discloses a gas water heater which comprises a water inlet pipe, a heat exchanger and a water outlet pipe which are sequentially communicated in the water flow direction, and further comprises a water mixing tank and a bypass pipe, the water mixing tank is arranged on the water outlet pipe, and a water inlet, a bypass water inlet and a water outlet are formed in the water mixing tank. The water inlet is used for being communicated with the water outlet end of the heat exchanger, the water outlet is communicated with the water using end through the water outlet pipe, the two ends of the bypass pipe are communicated with the bypass water inlet and the water inlet pipe respectively, a bypass valve used for adjusting the water flow is arranged on the bypass pipe, and the vertical distance H1 between the bypass water inlet and the water inlet is larger than the vertical distance H2 between the bypass water inlet and the water outlet. According to the gas water heater disclosed by the utility model, on the basis of solving the problem of water stop temperature rise during secondary starting, the outlet water temperature in the water stop temperature drop stage can be improved, and the structure of the water mixing tank is simplified while the water stop temperature drop is effectively improved.
Owner:GUANGDONG VANWARD NEW ELECTRIC CO LTD

Power equipment box with efficient heat dissipation function

The invention belongs to the field of power equipment boxes, and particularly relates to a power equipment box with an efficient heat dissipation function, and the power equipment box comprises a power equipment box body, a metal column, a communication pipeline, a mounting plate, a communication assembly, a control assembly and a water-cooling radiator, and the control assembly comprises a controller, a mounting sleeve plate and a temperature sensor. The controller is installed on the outer wall of the power equipment box body, the installation sleeve plate is fixedly connected to the inner wall of the metal column, and the temperature sensor is installed on the inner wall of the installation sleeve plate. According to the structure of the aluminum alloy metal columns arranged in the matrix mode and the outer wall arc-shaped cooling fins, the metal columns can accurately correspond to core heating components in the box to efficiently absorb heat, the heat exchange area between the cooling fins and air is greatly expanded, the passive heat dissipation capacity is enhanced, meanwhile, cold water in the metal columns can store heat, the water temperature rising speed is delayed, and the heat dissipation efficiency is improved. The problems that in a traditional heat dissipation mode, correspondence between a metal heat dissipation part and a heating source is poor, the heat exchange area is limited, and the heat dissipation efficiency is low due to the fact that heat is absorbed only through a single medium are solved.
Owner:STATE GRID HENAN ELECTRIC POWER CO MENGZHOU POWER SUPPLY CO

Heat pump non-stop defrosting control method and system based on double-evaporator cooperative control

The invention provides a heat pump non-stop defrosting control method and system based on double-evaporator cooperative control, and the method comprises the steps: building a temperature difference response change rate index by collecting the refrigerant inlet and outlet temperatures of two groups of fin heat exchangers in real time, and recognizing a side needing to be defrosted and a heating side; an electronic expansion valve, a fan and an electromagnetic valve are dynamically configured, so that the side needing to be defrosted enters a static defrosting mode, and the heating side continuously supplies heat; the frequency rising of the compressor and the switching of the four-way valve are cooperatively adjusted, and small-flow pre-balancing is executed before reversing so as to restrain pressure impact; and after defrosting is completed, it is judged that defrosting is finished based on the thermal response state and the heat change trend, the side needing defrosting is controlled to be reset, and heating is started again. Uninterrupted heat supply of the user side in the defrosting process is achieved, water temperature fluctuation and energy consumption are remarkably reduced, and the operation stability and energy efficiency of the heat pump in the low-temperature and high-humidity environment are improved.
Owner:GUANGDONG NEW ENERGY TECH DEV

Dissolved oxygen closed-loop regulation and control method used in sewage treatment process

The invention discloses a dissolved oxygen closed-loop regulation and control method used in a sewage treatment process. The method comprises the following steps: acquiring real-time dissolved oxygen concentration in a reaction tank through a distributed sensor array, and performing temperature compensation; an online water quality analyzer is used for collecting water inlet flow, chemical oxygen demand, ammonia nitrogen and water temperature to construct a comprehensive input feature vector; establishing a nonlinear dynamic mapping model based on a deep neural network, and outputting a target dissolved oxygen set value changing along with working conditions; an aeration adjusting instruction is generated by adopting a feedforward-feedback composite adaptive fuzzy PID control algorithm; dynamically adjusting the air volume of an air blower and the opening density of a partition aeration disc to match the aerobic rate of microorganisms; and the control performance is evaluated regularly, and a model parameter online optimization mechanism is triggered to continuously improve the setting precision. According to the method disclosed by the invention, the dissolved oxygen can be accurately controlled, so that the aeration energy consumption is reduced by not less than 18%, the control precision is within + / -0.3 mg / L, and the robustness, the automation level and the low-carbon operation capability of the system are remarkably improved.
Owner:GUANGZHOU LIANGSEN INSTR TECH CO LTD

Heat supply data monitoring system based on artificial intelligence

The invention relates to the technical field of data processing, in particular to a heat supply data monitoring system based on artificial intelligence. The system comprises a return water temperature prediction module, a deviation monitoring module, a thermal load analysis module, a first pipe network state monitoring module, a second pipe network state monitoring module and a parameter correction module. An expected return water temperature target value is calculated, and a deviation monitoring module captures the difference between an actual operation state and a theoretical value based on a heat balance principle; the thermal load analysis module accurately draws a system total load curve through data of a user side intelligent heat meter, when the system is abnormal, fault sources can be intelligently distinguished, whether set parameters are misaligned or not is judged according to a thermal inertia mechanism by recognizing near-end overheating and tail-end underheating, hydraulic instability and physical blockage are accurately positioned, and the system reliability is improved. Meanwhile, self-adaptive optimization of set parameters is achieved, the accuracy and timeliness of fault diagnosis of the heat supply system are improved, and stable and efficient operation of the heat supply system is effectively guaranteed.
Owner:BEIJING GUODA ENERGY CO LTD

Mass concrete temperature control construction method and system based on phase change energy storage

The invention discloses a mass concrete temperature control construction method and system based on phase change energy storage, and the method comprises the steps: S100, building a BIM model for a concrete member pouring region according to a design size, setting a temperature sensor in a concrete member to monitor data in real time, and predicting a temperature field in combination with the BIM model; s200, the space between the conventional cooling water pipe and the concrete protection layer is filled with phase change microcapsules in a gradient density mode, a phase change energy storage buffer layer is formed, and transfer of heat to the interior of the concrete member is delayed; s300, according to the predicted temperature field, the water inlet flow and the water temperature are dynamically adjusted, the temperature peak is controlled, and the cooling rate is controlled; s400, fiber grating sensors are arranged at the four corners and the midspan of the concrete member, and the strain change rate is detected; and S500, establishing a digital twin temperature control platform, integrating temperature, humidity and strain data, constructing a three-dimensional thermodynamic model, predicting the temperature rise trend of the concrete member, and performing adaptive regulation and control on the temperature. Temperature difference inside and outside the concrete is controlled through phase change temperature control.
Owner:CHINA RAILWAY BRIDGE SCI RES INST LTD +2

Marine coral reef ecological restoration method based on foamed aluminum base material

The invention relates to the technical field of marine ecological engineering, in particular to a marine coral reef ecological restoration method based on a foamed aluminum base material, which comprises the following steps: preparing a modified foamed aluminum main body structure, constructing a modified bioactive surface layer, filling a modified phase change material capsule, and putting a restoration unit. According to the invention, the foamed aluminum main body structure provides a stable three-dimensional through porous network, and a natural reef habitat environment is simulated; a hydroxyapatite coating or a polymer layer constructed on the surface of the coral bone-imitating material remarkably improves the coral larva attachment and colonization efficiency through coral bone-imitating inorganic components or specific polypeptides respectively; the phase-change material capsules filled inside buffer water temperature fluctuation through phase-change latent heat, a stable micro-thermal environment is provided for coral growth, the functions of all the components are complementary and synergistic, foamed aluminum provides a carrier for surface functionalization, the surface active layer optimizes a biological interface, the internal temperature adjusting unit guarantees ecological suitability, and an efficient repairing system is formed. The coral reef ecological restoration effect is obviously improved.
Owner:ANHUI NEOFOUND TECH

Intelligent control method and system for cooling circulating water square bin of data center

The invention relates to an artificial intelligence technology, and discloses an intelligent control method and system for a cooling circulating water square bin of a data center, and the method comprises the steps: constructing a digital twinborn model of a target cooling circulating water square bin, and obtaining a square bin twinborn model, predicting a future load curve based on the real-time environment data of the target cooling circulating water square bin and pre-acquired historical load data, and calculating the temperature of a water outlet of the target cooling circulating water square bin after a preset time interval by using the future load curve and a pre-acquired environment temperature change prediction curve to obtain a first predicted temperature, deducing the temperature of a water outlet of the target cooling circulating water square bin after a preset time interval according to the environment temperature change prediction curve and the future load curve by utilizing a square bin twinborn model to obtain a second prediction temperature, and generating a control instruction set based on a difference value between the first prediction temperature and the second prediction temperature, and adjusting the target cooling circulating water square bin based on the control instruction set. The operation efficiency of the cooling circulating water square bin can be improved.
Owner:BORNSALES SCI & TECH CO LTD

Closed circulation cold end optimization method, device and system

The invention relates to the technical field of thermal power generation, in particular to a closed circulation cold end optimization method, device and system, and the method comprises the following steps: obtaining the historical operation data of a unit from a power plant monitoring information system, the data comprises circulating water flow, circulating water inlet temperature, circulating water outlet temperature, condenser backpressure water pump motor current, generator power, medium and low pressure heat supply steam flow, condenser steam-water temperature and condenser water inlet and outlet pressure; s2, performing abnormal value processing on the data obtained in the step S1, namely screening out an abnormal value, and repairing and filling the abnormal value by using an interpolation method; based on the actual condition of the power plant, the unit load and the steam admission amount of the condenser are fitted through a large amount of historical data in the step S2; the total power for starting different numbers of circulating water pumps and fans and the water flow corresponding to the circulating water pumps are determined according to the historical data in the step S2; respectively establishing a condenser model and a cooling tower model; constructing a circulating cooling system model, coupling the condenser model and the cooling tower model, carrying out iterative calculation until convergence or reaching the maximum number of iterations, and obtaining the condenser outlet water temperature, the cooling tower outlet water temperature, the condenser back pressure, the vacuum degree and the power generation power; fitting a correction coefficient curve by referring to the technical specification of a power plant and combining the historical data in the step S2 with the condenser backpressure-generated power correction coefficient graph; and calculating the generated power and the net output power according to the unit load and the auxiliary machine consumption, and outputting an auxiliary machine configuration scheme corresponding to the maximum net power.
Owner:SOUTH CHINA UNIV OF TECH

PEM electrolytic bath test system

A PEM (Proton Exchange Membrane) electrolytic bath test system relates to the technical field of proton exchange membrane electrolyzed water and comprises an electrolytic bath, a water replenishing and circulating water module, a produced gas pretreatment and analysis module, a nitrogen purging module, a condensation module, a data acquisition module, a control module and a power supply module. The water replenishing and circulating water module is provided with a water replenishing buffer branch and is used for weakening disturbance of low-temperature water to circulating water temperature during water replenishing; the produced gas pretreatment and analysis module comprises a hydrogen treatment system and an oxygen treatment system which are parallel to each other, and a dew point meter is arranged in the hydrogen treatment system and used for detecting the dew point of produced hydrogen. Through the design of the water replenishing buffer branch, the temperature of water entering the electrolytic bath is effectively stabilized; by integrating the dew-point meter, the capability of detecting the dryness of the gas produced by the electrolytic cell is expanded; the overall framework of the system is optimized, the test precision and the energy efficiency are improved, and the operation cost is reduced.
Owner:HENAN UNIV OF SCI & TECH

Thermal energy storage system and method based on temperature stratification and dynamic isothermal layer control

The invention relates to a thermal energy storage system and method based on temperature stratification and dynamic isothermal layer control. The system comprises a pressure-resistant shell internally provided with a tower-type layered heat storage unit, the unit is composed of a plurality of heat storage cavities which are stacked up and down, and the temperature gradient with the high temperature at the upper part and the low temperature at the lower part is naturally formed by utilizing the characteristic that the water temperatures are different and the densities are different; a partition plate with a water passing structure is arranged between every two adjacent cavities so as to balance the water level and prevent turbulent flow. And each chamber is provided with a water outlet valve and a water return inlet valve which are independently controlled. According to the method, opening and closing of valves of corresponding temperature layers are dynamically controlled according to the real-time temperature of external thermal equipment through a homothermal layer control strategy, synchronous movement of a water taking layer and a water returning layer along with process temperature changes is achieved, and therefore accurate storage and taking and gradient cyclic utilization of heat energy are completed. The problems that in the prior art, a system is redundant, and the heat energy mixing and single-time utilization efficiency is low are solved, the structure is simplified, heat energy is stably stored, the energy efficiency is maximized, and the energy-saving effect is remarkable.
Owner:唐一波 +1

Heat supply network source side renewable energy source regulation and control method and system, medium and product

The invention discloses a heat supply network source side renewable energy source regulation and control method and system, a medium and a product, and relates to the technical field of renewable energy source integration and heat supply. According to the method, the regulation and control system collects the real-time water return temperature of the primary side main water return pipe, the target water supply temperature of the primary side main water supply pipe and the outlet water temperature of the renewable energy source branch to determine the physical topological structure of the renewable energy source branch connected to the source side of the urban heat supply network, and correspondingly adjusts the valve opening degree of the multi-way valve set to be connected with the flow path. According to the self-adaptive heat supply network source side renewable energy source regulation and control method, the access mode of the renewable energy source on the urban heat supply network source side can be flexibly adjusted according to the output change of the renewable energy source, invalid circulation is avoided while the heat exchange effect is guaranteed, and therefore the utilization efficiency of the renewable energy source is improved.
Owner:CHINA ACADEMY OF BUILDING RES TIANJIN INST +1

Brewing process of tartary buckwheat wine

The invention discloses a brewing process of tartary buckwheat wine. The brewing process comprises the following steps: soaking grains, primarily steaming, covering the grains, re-steaming, cooling and mixing yeast, saccharifying and fermenting, fermenting in a jar, and distilling to obtain the wine. According to the method, the grain soaking water consumption, the grain soaking water temperature, the grain soaking time, the cooking time and the like are taken as factors, the cracking rate and the gelatinization degree of the tartary buckwheat are taken as evaluation indexes, the shape of the cooked tartary buckwheat is combined, U11 (116) is designed by adopting a uniform test, and finally, optimal process parameters are screened and obtained.
Owner:GUIZHOU INST OF BIOTECHNOLOGY (GUIZHOU KEY LAB OF BIOTECHNOLOGY GUIZHOU POTATO RES INST GUIZHOU FOOD PROCESSING RES INST)

Intelligent oil-saving sliding control method and system for AMT commercial vehicle and commercial vehicle

The invention relates to the field of vehicle control, in particular to an intelligent oil-saving sliding control method and system for an AMT commercial vehicle and the commercial vehicle, and the method comprises the steps: obtaining a gradient threshold interval and hysteresis width corresponding to a current state based on the total load of the vehicle, the real-time vehicle speed and the real-time road gradient; whether the engine water temperature and the accelerator opening degree signal meet preset fuel-saving sliding admission conditions or not is judged in real time; when all the access conditions are met and the real-time gradient and the vehicle speed are within the threshold interval, gear combination of the AMT gearbox is maintained, an engine is controlled to enter a fuel cut-off mode, and the vehicle enters an intelligent fuel-saving sliding state based on engine reverse towing; and if the real-time gradient exceeds the safety range, engine fuel oil supply is immediately recovered, and the in-cylinder braking or exhaust braking function of the engine can be cooperatively activated, so that the fuel-saving sliding state is stably quitted. And on the premise of ensuring compliance and safety of the whole process, the fuel economy is effectively improved.
Owner:SINO TRUK JINAN POWER CO LTD

Multi-mode water flow control method for heat pump unit and related equipment

The invention relates to the technical field of heat pump control, and discloses a heat pump unit multi-mode water flow control method and related equipment. The method comprises the steps that the target outlet water temperature of a heat pump unit and a water pump adjusting mode are obtained, and the adjusting mode comprises a flow adjusting mode and a temperature difference adjusting mode; target control parameters are determined according to the temperature interval to which the target outlet water temperature belongs and the adjusting mode, the target water flow in the flow adjusting mode is decreased along with temperature rising, and the target inlet and outlet water temperature difference in the temperature difference adjusting mode is increased along with temperature rising; actual operation parameters are collected, current water flow is collected in the flow adjusting mode, and inlet and outlet water temperature is collected and temperature difference is calculated in the temperature difference adjusting mode; adjusting the water pump output ratio according to the deviation between the actual operation parameter and the target control parameter; and the target outlet water temperature is continuously monitored, and the steps are circularly executed until the machine is stopped. The problem that a single fixed control strategy cannot adapt to different working condition requirements is solved, and the safety and the energy efficiency of the system are both considered.
Owner:GUANGDONG PHNIX ECO ENERGY SOLUTION

Joint regulation and control method for temperature control valve and fan in fuel cell thermal management system

The invention relates to a joint regulation and control method, device and equipment for a temperature control valve and a fan in a fuel cell thermal management system and a storage medium. The joint regulation and control method comprises the following steps: acquiring a water pump rotating speed, a preset water pump characteristic curve, a first preset pipeline total flow and a first preset temperature control valve opening degree; determining the flow of each branch distributed under the rotating speed of the water pump and the opening degree of the first preset temperature control valve; according to the first flow flowing through the PTC branch, the second flow flowing through the radiator branch, the obtained first outlet temperature of the PTC and the obtained first inlet target temperature of an electric pile, the rotating speed of the water pump and the first outlet water temperature, corresponding to the opening degree of the first preset temperature control valve, of the radiator are calculated; according to the method, the water pump rotating speed and the first rotating speed and the first power consumption of the fan under the first preset temperature control valve opening degree are obtained according to the preset temperature control valve opening degree, the target power consumption is determined, the temperature control valve and the fan are jointly regulated, and the problems that power consumption is large and temperature control is unstable due to the fact that the fan and the temperature control valve are controlled separately in the related technology are solved.
Owner:DONGFENG MOTOR GRP