2017 results about "Circulator pump" patented technology

The invention discloses a charging pile liquid cooling three-level leakage prevention and pump obstacle prevention intelligent control method and system, and relates to the technical field of liquid cooling control. The charging pile liquid cooling three-level leakage prevention and pump obstacle prevention intelligent control method comprises the steps that S1, liquid cooling monitoring data are periodically collected, and the liquid cooling monitoring data are preprocessed; s2, judging whether an abnormal period exists or not, and evaluating whether a cooling liquid leakage trend exists or not in combination with real-time liquid cooling monitoring data; s3, performing coolant leakage risk grade evaluation, judging the leakage risk grade in the current abnormal period, and executing a corresponding leakage prevention strategy; and S4, in the execution process of the anti-leakage strategy, the running state of the circulating pump is evaluated, and whether the pump obstacle prevention and control strategy is triggered or not is judged. The problem that thermal runaway is caused by the fact that cooling abnormity is not intervened in time due to the fact that leakage of trace cooling liquid in an existing liquid cooling system is difficult to recognize in time and pump obstacles are difficult to pre-judge accurately is solved.

The invention relates to the technical field of industrial process control, and discloses an intelligent optimization control method of an alkaline water hydrogen production system, which comprises the following steps: a controller synchronously acquires real-time voltage, current and temperature data of an electrolytic bath; theoretical reversible voltage is calculated according to a Nernst equation, ohm voltage drop is eliminated, and a bubble additional impedance value representing the bubble coverage degree is analyzed; performing differential processing on the change rate of the bubble additional impedance value to generate a flow feed-forward control instruction, combining a feedback control instruction based on temperature deviation to synthesize a target rotating speed instruction, and driving an alkali liquor circulating pump to adjust the flow speed; according to the method, the bubble impedance observation model is constructed, so that zero-delay sensing and decoupling control over the state of bubbles in the electrolytic cell are achieved, hysteresis of single temperature feedback is eliminated, and the problems of actuator saturation and model aging drifting are solved.

The invention provides a heat supply digital twinborn intelligent regulation and control method, and relates to the technical field of intelligent regulation and control, and the method comprises the steps: executing millisecond-level high-concurrency numerical simulation according to a dynamic digital twinborn body, so as to obtain a simulation result; based on the simulation result, coupling the electricity price fluctuation data and the weather prediction data, performing future heat supply system multi-working-condition deduction, and dynamically optimizing a heat source unit start-stop combination and pipe network valve opening strategy to obtain a deduction result and an optimization strategy; generating an equipment regulation and control instruction set according to the deduction result and the optimization strategy; and an equipment regulation and control instruction set is issued to an edge computing node, a variable-frequency circulating pump and an electric control valve executing mechanism are controlled, and dynamic closed-loop regulation of the flow and the pressure of the heat supply pipe network is achieved. According to the invention, the pipe network flow and pressure regulation response time can be shortened to a second level.

The invention discloses an on-load tap-changer oil dissolved gas monitoring device which comprises a variable capacity container, a two-way electromagnetic valve, a switching mechanism, a chromatographic column system, a high-sensitivity detector and a low-sensitivity detector which are sequentially connected, and the top and the bottom of the variable capacity container are connected through a circulating pump to form a gas flow loop. The variable-capacity container is connected with the on-load tap-changer through a connecting pipe, the switching mechanism is connected with at least two quantitative pipes with different capacities, and the switching mechanism is used for equally transferring gas in the variable-capacity container to the quantitative pipes and then sequentially transferring the gas in the quantitative pipes to the chromatographic column system. The invention further discloses a method for monitoring the dissolved gas in the on-load tap-changer oil. According to the monitoring device and the monitoring method for the dissolved gas in the oil of the on-load tap-changer, the detection range of the concentration is improved, a concentration blind area which is not detected and misjudgment of signal saturation can be avoided, and the detection accuracy is improved.

The invention relates to the technical field of thermal management of energy storage power stations, and discloses an immersion phase change and jet flow cooperative reinforcement thermal management system of an energy storage power station. An immersed phase-change cooling tank body of the system contains an energy storage battery pack and a low-boiling-point fluorinated liquid cooling liquid, so that the whole battery pack is immersed in the immersed phase-change cooling tank body; the condensation recovery device is connected with a steam outlet condensation vaporization medium; the liquid storage distribution unit comprises a main liquid storage tank and a special liquid storage tank, the main liquid storage tank is connected with the condensation recovery device, and the special liquid storage tank is connected with the bottom of the tank body through an electromagnetic drain valve; the multi-layer jet strengthening module comprises a top-layer annular jet pipeline, a bottom-layer annular jet pipeline and a middle-layer annular jet pipeline, the top-layer annular jet pipeline and the bottom-layer annular jet pipeline are connected with a main liquid storage tank and reflow through a circulating pump, and the middle-layer annular jet pipeline is connected with a special liquid storage tank driven by a high-pressure pump and provided with The temperature monitoring array acquires the real-time surface temperature of the battery pack in a distributed manner The dynamic control center is connected with all the modules. According to the system, efficient and uniform heat management of the energy storage battery pack is realized through cooperation of phase change and jet flow.

The invention discloses a circulating pump control method based on a PLC, and relates to the technical field of circulating pump control, and the method comprises the steps: collecting key working condition data of a circulating pump, calculating a flow instantaneous deviation value, inputting the deviation and the real-time key working condition data into a lightweight digital twinborn model embedded in the PLC, and predicting flow output under an ideal working condition. Comparing with an actual value to obtain a deviation factor, correcting a current PID parameter based on the deviation factor, and calculating a target output frequency in combination with the flow deviation; and the PLC dispatches the current optimal pump set and the corresponding frequency in combination with the target output frequency and the health index and the operation duration of each pump, soft start-stop control is executed, and the selected pump sets are stably started one by one. The problems of response lag and extensive dispatching of a traditional control method are solved, and the intelligent control level and engineering adaptability of the circulating pump control method are remarkably improved.

The utility model relates to a high-voltage cable buffer layer ablation characteristic gas detection device which comprises a gas acquisition unit, a gas detection unit, a data processing unit and an alarm unit, the gas collection unit comprises a circulating pump, a vacuum pump, a sampling gas cylinder, a pressure sensor and a plurality of valves, the gas detection unit comprises two detection modules, the gas inlet pipe is connected with a first electromagnetic valve, then is connected with the sampling gas cylinder and is connected with the circulating pump through a second electromagnetic valve, and the circulating pump is connected with the two detection modules through an electromagnetic three-way switching valve. An outlet of the sampling gas cylinder is connected with a third electromagnetic valve, then connected with an inlet of a vacuum pump, connected with a fourth electromagnetic valve and then connected with two detection modules at the same time; the first detection module is composed of a gas concentration sensor, a temperature sensor and a humidity sensor, and the second detection module is a gas sensor array. The device can perform field detection on gas generated in the ablation process of the buffer layer of the high-voltage cable, so that potential faults of the cable can be found and early warned in time.

The invention relates to the technical field of intelligent monitoring and control of energy storage power stations, in particular to a monitoring method and system for thermal runaway protection of an energy storage power station. The method comprises the following steps: a thermal runaway characteristic signal of the liquid-cooled battery unit is synchronously acquired and processed by the photoacoustic module and the infrared imager to obtain CO concentration time sequence data and temperature cloud picture space data; a sparse feature vector fusing gas concentration and temperature features is obtained through filtering, feature extraction and multi-modal fusion processing of the AI intelligent controller; and performing compressed sensing and risk decision model processing on the sparse feature vector fusing the gas concentration and temperature features to form a thermal runaway early warning signal and a positioning result of the liquid-cooled battery unit. The system comprises a liquid cooling box body, an AI intelligent controller, a cooling liquid storage device, a condenser, a circulating pump, an electric valve, a pressure release valve, an infrared imager, a photoacoustic module and a liquid cooling battery unit. According to the method, rapid extraction and reliable identification of the thermal runaway early-stage features are realized.

The invention relates to a distributed cross-seasonal heat storage type ground source heat pump heating air-conditioning system group and a regulation and control method. The distributed cross-seasonal heat storage type ground source heat pump heating air-conditioning system group is composed of a plurality of distributed heating air-conditioning systems. Each distributed heating air-conditioning system is close to the served building and is provided with an independent ground heat exchanger, a heat pump, a circulating pump, a connecting pipeline, a heating air-conditioning user and an outdoor air heat exchanger; a plurality of distributed heating air-conditioning systems form a heating air-conditioning system group; the distributed heating air-conditioning systems in the group are subjected to centralized and unified power distribution, all the distributed heating air-conditioning systems are interconnected through a wireless communication network, operation data of all the distributed heating air-conditioning systems are shared, and centralized cooperative regulation and operation management are carried out. In spring and autumn, surplus wind, light and electric power are utilized to store heat or cold underground through a heat pump and a ground heat exchanger; in summer, the heat pump is used for air-conditioning refrigeration, and heat is discharged to the underground or air; in winter, heat of soil or air is extracted through the ground source heat pump to supply heat to a room.

The invention discloses a gas-liquid treatment method and device of an alkaline electrolytic water hydrogen production system, a processor and a medium, and relates to the technical field of electrolytic hydrogen production. The method comprises the following steps: acquiring an actual value of the concentration of dissolved-state oxyhydrogen in the oxyhydrogen catalytic reaction unit through a dissolved-state oxyhydrogen monitor; the concentration of dissolved-state hydrogen and oxygen in the hydrogen and oxygen catalytic reaction unit is predicted, and a predicted value is generated; a preset concentration threshold value is obtained, and a closed-loop regulation and control instruction for the electrolyte circulating pump is generated based on the actual value, the predicted value and the preset concentration threshold value; and controlling the electrolyte circulating pump to execute corresponding control operation based on the closed-loop regulation and control instruction. Dissolved hydrogen and oxygen are treated through the hydrogen and oxygen catalytic reaction unit, an actual value is obtained in real time in combination with the dissolved hydrogen and oxygen monitor, then the electrolyte circulating pump is regulated and controlled according to the actual value, a predicted value and a preset concentration threshold value, potential safety hazards are reduced, meanwhile, working condition fluctuation is adapted, and stable gas-liquid treatment is guaranteed.

The invention discloses a hydrogen fuel cell system which comprises a box body and further comprises a Venturi tube arranged at the uppermost part of the box body in a penetrating manner, a tail gas treatment assembly; the hydrogen recycling tank is arranged in the box body, an input pipe of the hydrogen recycling tank is communicated with the output end of the tail gas treatment assembly, an output pipe of the hydrogen recycling tank is communicated with the input end of the hydrogen circulating pump, and the output end of the hydrogen circulating pump is communicated with the hydrogen recycling pipe; a hydrogen dilution assembly; and a wastewater recovery assembly. According to the hydrogen fuel cell system, the problem that a reasonable, environment-friendly and recycling treatment method for tail gas is lacked at present is solved.

The invention belongs to the technical field of hydraulic performance data analysis, and discloses a hydraulic performance data analysis method for a high-temperature liquid metal circulating pump. The method comprises the steps that time domain features and frequency domain features are extracted based on a standardized data set, a feature data set is obtained and stored in a database, health state detection is conducted based on the real-time and historical feature data set, and a real-time health state report is obtained. The method comprises the steps of predicting a hydraulic performance trend and equipment degradation based on a real-time and historical feature data set to obtain a performance trend prediction report, analyzing based on a real-time health state report and the performance trend prediction report to obtain an adaptive control instruction set, and managing, checking and outputting the adaptive control instruction set. In general, the method has the remarkable advantages that the reliability of the basic data is high, the deep analysis capability of the data is high, and the intelligent effect of the system is good.

The invention discloses an AI-PI cooperative energy-saving control method for a shell-and-tube heat exchanger and the heat exchanger, and relates to the technical field of heat exchange.The heat exchanger comprises a main circulation system, a partition flow guide system and a control system, and the partition flow guide system comprises a rotatable flow guide plate, an electric control valve and a temperature sensor array; according to the control method, the main PI loop adjusts the rotating speed of the main circulating pump to stabilize the total outlet temperature; data such as partition temperature and total flow are collected in real time, and the AI intelligent decision-making layer calculates the partition real-time heat exchange efficiency through a partition efficiency evaluation module; the dynamic flow optimization module solves an optimal flow distribution scheme by taking the highest total heat exchange efficiency as a target and combining constraint conditions, and issues the optimal flow distribution scheme to a partition PI loop to adjust the opening degree of a valve; the flow control system also has the functions of scaling early warning compensation, data processing and AI model self-learning optimization, preferentially guarantees the flow of a key partition during low load, and realizes high efficiency, energy conservation and stable operation.

The invention discloses an immersed liquid cooling charging system and a control method thereof, the immersed liquid cooling charging system comprises a cabinet, a plurality of power modules, a radiator, a circulation pipeline, a circulation pump, a valve and a cooling fan, and the cabinet is provided with a top plate and a bottom plate which are oppositely arranged in the height direction of the cabinet; the plurality of power modules are arranged in the cabinet; the radiator is arranged in the cabinet and is located between the power module and the top plate; the circulation pipeline is communicated with the radiator and each power module; the circulating pump is arranged on the circulating pipeline; and the cooling fan is arranged on the top plate. According to the immersed liquid cooling charging system provided by the invention, the power module is directly communicated with the radiator through the circulating pipeline, a scheme that a cold plate is in contact with an internal device of the power module is not needed, a cold plate flow channel does not need to be designed and arranged, and the use is more convenient; meanwhile, all heating devices and circuits in the power module are soaked in insulation, so that heat dissipation is more direct and effective; and oxygen is isolated from being in contact with a heating device and a circuit, so that the safety is higher.

The invention provides a liquid cooling system cooling capacity distribution unit control method, device and unit and a liquid cooling system. The method comprises the steps that current hydraulic parameters of cooling liquid in a secondary side liquid supply and return pipeline are obtained; if the current hydraulic parameter is smaller than a preset hydraulic threshold value and the absolute difference value between the current hydraulic parameter and the preset hydraulic threshold value is larger than a first preset difference value, the frequency of a circulating pump and / or the opening degree of a bypass valve are / is adjusted according to the current hydraulic parameter and the preset hydraulic threshold value so as to increase the flow of cooling liquid in a secondary side liquid supply and return pipeline; and if the current hydraulic parameter is larger than a preset hydraulic threshold value and the absolute difference value is larger than a first preset difference value, the frequency of a circulating pump and / or the opening degree of a bypass valve are / is adjusted according to the current hydraulic parameter and the preset hydraulic threshold value so as to reduce the flow of the cooling liquid in the secondary side liquid supply and return pipeline. Heat dissipation control can be carried out timely and accurately, the heat dissipation performance of the liquid cooling system is improved, the heat dissipation requirement of the server is met, and normal operation of the server is guaranteed.

The invention discloses a temperature-variable superconducting magnet low-temperature testing system and method, and relates to the technical field of superconducting magnet low-temperature testing. The system specifically comprises a superconducting magnet circulation loop which is configured to be communicated with a superconducting magnet to be tested to form a closed circulation channel for helium flow; the heat exchanger is arranged in the superconducting magnet circulation loop and is configured to cool helium in the superconducting magnet circulation loop through heat exchange with an external low-temperature medium; the helium circulating pump is arranged in the superconducting magnet circulating loop and is used for driving helium to perform forced flow circulation in the closed-loop circulating channel; the temperature control assembly comprises a heater arranged in the superconducting magnet circulation loop; wherein the flow and the temperature of helium entering the superconducting magnet to be tested are controlled by adjusting the helium circulating pump and the heater. The invention aims to design a test system which does not need an expensive refrigerator, is simple and convenient to operate and can realize accurate control of a wide temperature zone and a forced flow cooling environment.

The invention provides a data room intelligent liquid cooling system, which comprises a liquid cooling cabinet, a water chilling unit and an electric control cabinet, and is characterized in that the liquid cooling cabinet comprises a server position slot and a heat exchanger, the server position slot stores insulation cooling liquid, the heat exchanger is communicated with the server position slot through a cooling liquid circulation pipeline, and the circulation pipeline is provided with a cooling liquid circulation pump; the water chilling unit comprises a refrigerator, a water tank and a cold water circulating pump, the refrigerator communicates with the heat exchanger through a cold water circulating pipeline, and the cold water circulating pump is arranged on the cold water circulating pipeline; the electric control cabinet comprises a data acquisition device, a control device and a frequency converter, and the control device is electrically connected with the cooling liquid circulating pump through the frequency converter and used for controlling the working frequency of the cooling liquid circulating pump according to data acquired by the data acquisition device. According to the intelligent liquid cooling system for the data machine room, the temperature of the cooling liquid can be accurately controlled, rapid cooling and accurate heat dissipation are achieved, and meanwhile energy consumption is reduced.

The data center liquid cooling air conditioning system and the control method have the prospective intelligent regulation and control characteristic based on machine learning prediction and model prediction control, multi-dimensional operation data are obtained in real time through a data collection module, and the data are input into a thermal load prediction model after being preprocessed; and a thermal load sequence in a future time window is accurately predicted, optimal control parameters are calculated through an optimization algorithm, and the operation states of the cooling liquid circulating pump set and the outdoor cooling tower are dynamically adjusted. According to the system, the hysteresis problem of traditional feedback control is effectively solved, advanced response and accurate matching of thermal load changes of the data center are achieved, the temperature control stability and the overall energy efficiency of the system are remarkably improved, and meanwhile the adaptability of the system to load fluctuation and external environment changes is enhanced.

The invention discloses a multi-objective optimization design method and system for an axial-flow circulating pump, and belongs to the technical field of evaporative crystallization systems.The method comprises the steps that design variables are selected to construct a multi-objective optimization model, the design variables are associated with geometric parameter sizes of an axial-flow pump full-flow-channel parameterization model, initial fluid dynamics calculation is executed, and a multi-objective optimization model is constructed; obtaining an initial data set containing a design variable-performance response mapping relation, and performing parameter sensitivity analysis on the initial data set to screen key design variables; on the basis of the initial data set, an optimal approximation model is adaptively selected for the key design variables, multi-objective optimization is carried out, and a Pareto optimal solution set is determined; uncertain factors are introduced for robustness evaluation, a target design scheme is determined, and after fluid dynamics verification is carried out, the design scheme of the design variables of the axial flow type circulating pump is obtained. According to the method, an optimization process with high integration, automatic iteration and intelligent learning is constructed, and rapid, accurate and steady multi-objective optimization design of the axial flow pump hydraulic model is realized.

According to the intelligent plunger pump temperature control method and system based on model predictive control, a thermodynamic model predictive control algorithm is introduced, key parameters such as the oil temperature of a plunger pump body, the water temperature of a water tank and the environment temperature are brought into a unified calculation model, and cooperative closed-loop control over a heating plate, a semiconductor chilling plate and a circulating pump is achieved. By constructing the heat balance equation of the lumped heat capacity system and solving the rolling optimization problem in the limited time domain, the heat load change of the plunger pump can be accurately predicted and adjusted in advance, the oil temperature is always stabilized in the preset target interval, and the temperature control precision is remarkably improved; meanwhile, mutual exclusion constraints of heating and refrigerating power are set, and weights are dynamically adjusted and optimized according to working conditions, so that meaningless consumption of energy is effectively avoided, and the operation cost of equipment is reduced; in addition, according to the control method, preheating, cooling and energy-saving modes can be automatically recognized, so that the plunger pump is rapidly started in the severe cold environment and stably operates in the high-temperature environment.

The invention discloses an optimal control method for a thermal power plant desulfurization wastewater air evaporation concentration technology, which comprises the following steps: S1, multi-source data real-time acquisition: deploying high-precision sensor groups in a concentration tower and at each inlet and outlet, and acquiring air parameters and wastewater parameters in real time; s2, data preprocessing: preprocessing the collected multi-source data to construct a data set; s3, constructing a fuzzy neural network model: constructing a two-layer fuzzy neural network model comprising a first-layer network and a second-layer network based on a fuzzy neural network algorithm; the first-layer network comprises an air parameter treatment sub-network and a wastewater parameter treatment sub-network which are arranged in parallel; the second-layer network is a decision-making layer and outputs and generates the rotating speed of an air fan, the rotating speed of a circulating pump and the concentration ratio; s4, feedback control and real-time adjustment, wherein the output value serves as a control parameter set value, and the air volume, the circulating wastewater flow, the circulating wastewater temperature and the concentration ratio are adjusted. According to the invention, the evaporation efficiency can be obviously improved, the energy consumption is reduced, and scaling is inhibited.

The invention relates to a control method, device and equipment for a liquid cooling heat dissipation system of a server and a storage medium, and belongs to the field of radiators, and the control method for the liquid cooling heat dissipation system of the server comprises the steps that CPU heat load data, liquid cooling heat dissipation system state data and liquid cooling heat dissipation system surrounding environment data are obtained, and the CPU heat load trend and grade are generated; and in response to the thermal load trend and grade of the CPU, adjusting one or more parameters of the flow of the cooling liquid in the branches, the energy consumption of the circulating pump and the energy consumption of the heat dissipation terminal, so that the temperature of the CPU is maintained in a reasonable range. According to the control method of the server liquid cooling heat dissipation system, heat dissipation resources are finely managed and allocated, energy consumption of the circulating pump and the heat dissipation terminal is adjusted in real time, the temperature of each CPU is independently monitored and controlled, power consumption waste of the circulating pump and the heat dissipation terminal is avoided, the heat dissipation efficiency of the liquid cooling heat dissipation system is effectively improved, and energy consumption of the liquid cooling heat dissipation system is reduced.

The invention provides a battery pack liquid cooling system which comprises a plurality of cooling branches connected in parallel, each cooling branch is configured to be suitable for cooling a corresponding battery module in a plurality of battery modules of a battery pack, and each cooling branch is composed of a flow regulating valve and a cooling channel arranged corresponding to the corresponding battery module; the circulating pump is configured to be suitable for conveying cooling liquid to the multiple cooling branches; and the controller is configured to monitor the cell temperature and the temperature rise rate of each battery module and control the operation of the circulating pump and the flow regulating valve of each cooling branch based on the cell temperature and the temperature rise rate. According to some embodiments of the invention, the relation between the temperature rise rate and the cooling strength can be established between different modules of the battery pack, the temperature difference between the battery modules can be reduced or even eliminated through locally differentiated temperature management, thermal runaway can be inhibited, the service life of the battery pack can be prolonged, and energy can be saved. The invention also provides a corresponding battery pack and a liquid cooling control method.

The invention belongs to the technical field of waste heat boiler circulating pump management and control, and particularly relates to a waste heat boiler circulating pump cooperative control system based on multi-working-condition frequency conversion regulation, which comprises a working condition dynamic clustering recognition module, a cooperative decision control module, a working condition maintenance evaluation module, a health degree hindering output module and a remote supervision center, the operating condition of the waste heat boiler circulating pump is accurately judged through the working condition dynamic clustering recognition module, the collaborative decision control module generates a targeted control instruction according to the unstable working condition type so as to reasonably adjust the waste heat boiler circulating pump, and safe and stable operation of the waste heat boiler circulating pump can be guaranteed. The working condition maintenance evaluation module comprehensively evaluates the working condition maintenance performance through multi-dimensional indexes, operation fluctuation accumulation is avoided, the health degree hinders the output module from adopting two-dimensional evaluation logic, early warning can be triggered in advance, maintenance is involved, the equipment sudden failure and replacement cost is reduced, and full-process guarantee is provided for operation of the waste heat boiler circulating pump.

The invention relates to a flow battery system and an online flow calibration method thereof. The system mainly comprises a controller, an electrolyte storage tank, a flow calibration tank and a galvanic pile, a liquid level sensor is arranged on the flow calibration tank, and a first circulating pump, a pressure sensor and a flowmeter are sequentially arranged on a main circulating pipeline close to one side of an inlet of the galvanic pile in the liquid flow direction. A first electric control valve is arranged on the main circulating pipeline close to one side of the electric pile outlet; the electric pile is connected with the flow calibration tank through a first branch, and a second electric control valve is arranged on the first branch; the flow calibration tank is connected with the electrolyte storage tank through a second branch, and a second circulating pump and a third electric control valve are sequentially arranged on the second branch in the liquid flow direction; and the controller is used for calculating the actual flow in real time and automatically compensating the real-time output value of the flow meter on line. According to the invention, long-term stability and accuracy of electrolyte flow measurement can be ensured.

The utility model provides an alkali liquor concentration control system for hydrogen production electrode activation, which comprises a circulating pump, a make-up pump, an alkali supplement pump, a concentration detector and a PID concentration control system, the circulating pump is used for driving alkali liquor in an alkali liquor pool to circularly flow, the make-up pump is used for supplementing a water source into the alkali liquor pool, the alkali supplement pump is used for supplementing alkali liquor into the alkali liquor pool, and the concentration detector is used for detecting the concentration of the alkali liquor in the alkali liquor pool. The concentration detector is used for monitoring the concentration of alkali liquor in the alkali liquor pool, and the PID concentration control system is used for controlling the water supplementing pump and the alkali supplementing pump to work according to an alkali liquor concentration signal fed back by the concentration detector so as to maintain the concentration of the alkali liquor in the alkali liquor pool to be constant. According to the alkali liquor concentration control system, the PID concentration control system adjusts the water supplementing pump and the alkali supplementing pump to supplement water or alkali into the alkali liquor pool according to the alkali liquor concentration signal fed back by the concentration detector, it can be guaranteed that the concentration of alkali liquor in the alkali liquor pool is constant, and the activation quality of the hydrogen production electrode is improved.

The invention relates to the technical field of aluminum oxide production, and discloses evaporation forced-effect jet flash evaporation equipment which comprises a storage tank, a heating box is arranged outside the storage tank, an air guide pipe is arranged on the side wall of the storage tank, a flash evaporator is arranged outside the air guide pipe, a conveying pipe is arranged in the heating box, and a flash evaporator is arranged in the conveying pipe. A discharging table is fixedly connected to the lower side of the flash evaporator, a mounting block is fixedly connected to the side wall of the flash evaporator, a flow dividing pipe is fixedly connected to one end of the mounting block, a guiding assembly is arranged on the side wall of the flow dividing pipe, and a flow guiding block is fixedly connected to the interior of the flow dividing pipe. The steam pushes the cleaning assembly to rotate, meanwhile, the steam firstly passes through the flow guide block, and tiny crystals mixed in the steam are preliminarily filtered under the filtration of the flow guide block, so that the effects of preheating the mother liquor in advance, realizing self-circulation of the mother liquor, reducing the use of a circulating pump and further reducing the power consumption of the device can be achieved.

The invention discloses a control method and equipment for a hydrogen subsystem of a fuel cell and a storage medium, and relates to the field of hydrogen fuel application. The method comprises the following steps: estimating a system state of the hydrogen subsystem according to a model of the hydrogen subsystem and actual measurement information of the hydrogen subsystem; predicting future output of the hydrogen subsystem according to the model of the hydrogen subsystem and the system state of the hydrogen subsystem; according to the designed performance indexes and future output of the hydrogen subsystem, the rotating speed of a hydrogen circulating pump and the opening degree of a proportional valve are determined, and feedforward compensation is conducted on the determined rotating speed of the hydrogen circulating pump. According to the invention, multi-input and multi-output control from hydrogen pressure feedback and hydrogen in-and-out reactor pressure difference feedback to target hydrogen pressure and target hydrogen in-and-out reactor pressure difference can be realized, so that the control precision is remarkably improved.

The invention relates to the technical field of data processing, in particular to a liquid cooling and air cooling hybrid heat dissipation system for a high-density computing power cluster, and the system collects target heat sensing data through a heat sensing module and obtains a heat forecasting result through a heat forecasting module. The system also obtains a mixed heat dissipation decision by comparing a heat dissipation decision output module with a heat dissipation decision library, senses a potential risk that the heat dissipation capability is close to the limit in advance through a heat safety monitoring module, and judges the state of the rotating speed of the liquid cooling circulating pump. According to the system, a high-density computing power load coefficient is introduced and predictive optimization is carried out based on the state of the high-density computing power load coefficient, so that self-adaptive allocation of air cooling heat dissipation and liquid cooling heat dissipation is conveniently realized, and the heat dissipation efficiency and heat dissipation efficiency of the high-density computing power cluster are improved.

The invention provides a liquid cooling system and a control method of the liquid cooling system, and belongs to the technical field of electronic equipment cooling. The liquid cooling system comprises a TANK module, a heat exchange module, a circulating pump, a liquid storage tank and a first circulating pipeline, and the heat exchange module communicates with the TANK module through the first circulating pipeline. The first circulating pipeline comprises a first liquid outlet pipe, a first liquid inlet pipe, a second liquid inlet pipe and a second liquid outlet pipe. One end of the first liquid outlet pipe is connected with the first liquid outlet of the heat exchange module, and the other end is connected with the second liquid inlet pipe. One end of the first liquid inlet pipe is connected with the first liquid inlet of the heat exchange module, and the other end is connected with the second liquid outlet pipe. And the second liquid inlet pipe and the second liquid outlet pipe are respectively connected with a liquid inlet and a liquid outlet of the TANK module. The liquid storage tank is connected with the first liquid outlet pipe through a third liquid inlet pipe and a third liquid outlet pipe, the circulating pump is connected to the first liquid inlet pipe, the liquid outlet of the liquid storage tank is lower than the liquid inlet of the liquid storage tank, and the liquid outlet of the liquid storage tank is higher than the TANK module.