7919 results about "Water circulation" patented technology

The invention discloses a mass concrete intelligent temperature monitoring system and method, and the system comprises a high-precision temperature sensor, a data collection node which is connected with the high-precision temperature sensor and is responsible for carrying out the primary processing and integration of temperature data collected by the sensor, and a data collection terminal which serves as a data convergence center of the whole monitoring system and is used for collecting the temperature data. The intelligent temperature monitoring system comprises a plurality of data acquisition nodes which are connected in a wired or wireless communication mode, a data monitoring platform which operates at a server end and is a core control and management unit of the whole intelligent temperature monitoring system, and a circulating water cooling control system which is composed of a cooling water pump, a cooling tower, a cooling water pipe network, a temperature control main station and the like. The cooling water pipe network is embedded in the concrete in advance to form a closed water circulation loop; the temperature control master station receives a cooling control instruction sent by the data monitoring platform, and adjusts the rotating speed of a cooling water pump and the working state of a cooling tower according to the instruction, so that the flow and temperature of cooling water in a cooling water pipe network are accurately controlled; through flowing of circulating water in the concrete, redundant heat in the concrete is taken away, effective regulation and control over the temperature in the concrete are achieved, key indexes such as the highest temperature and the temperature gradient of the concrete are controlled within a reasonable range all the time, and concrete cracks caused by temperature stress are avoided.

The present invention provides a water circulation structure for a motorcycle engine, belonging to the technical field of motorcycles. It solves the technical problems of insufficient compactness of the existing engine water circulation structure and affecting the circulation effect. The water circulation structure of this motorcycle engine includes a reversing housing located on one side of the cylinder block. The reversing housing has a liquid inlet chamber and a liquid outlet chamber separated by a thin wall. The thin wall has a liquid passing port communicating the liquid inlet chamber and the liquid outlet chamber. Both ends of the water circuit are respectively communicated with the liquid inlet chamber and the liquid outlet chamber. The inner wall of the liquid inlet chamber has a liquid inlet for communicating with the cooling water tank, and the inner wall of the liquid outlet chamber has a liquid outlet for communicating with the cooling water tank. The thermostat is located in the liquid outlet chamber, and one end of the thermostat closes the liquid outlet. The other end of the thermostat is arranged towards the liquid passing port. After being heated, the thermostat can close the liquid passing port and open the liquid outlet. The present invention can ensure a sufficient circulating cooling effect while improving the structural compactness.

The invention discloses a boiler state monitoring and predicting system based on artificial intelligence, and relates to the technical field of state monitoring. The system comprises a data acquisition part, a combustion stability analysis part, a hydrodynamic instability risk assessment part, a steam drum water level fluctuation prediction part and a fault probability and service life assessment part. The data acquisition part is used for acquiring boiler operation data and water circulation data; the combustion stability evaluation part is used for calculating a thermodynamic efficiency index; the combustion stability analysis part is used for calculating a combustion stability coefficient; the hydrodynamic instability risk assessment part is used for calculating a hydrodynamic instability risk index; the steam drum water level fluctuation prediction part is used for calculating and predicting steam drum water level fluctuation; and the fault probability and service life evaluation part is used for evaluating the fault probability and the residual service life of the boiler. According to the invention, the comprehensiveness, accuracy and predictability of boiler operation state monitoring are obviously improved.

The invention discloses a tunnel type underground gas storage combined with temperature control, belongs to the technical field of compressed air energy storage, and can solve the problems that the cost of temperature control measures in an existing gas storage is high, and maintenance is difficult. The gas storage comprises a lining; the sealing structure covers the inner wall surface of the lining; the breathable heat conduction structure sleeves the inner side of the sealing structure; an annular cavity is formed between the sealing structure and the breathable heat conduction structure; the annular partition pieces are sequentially arranged in the annular cavity in the axial direction of the gas storage and used for dividing the annular cavity into a first temperature control area and other temperature control areas which are sequentially arranged, and the simulated operation temperature of each temperature control area is sequentially increased from the first temperature control area; a water storage bag is arranged in each temperature control area; and the water circulation structure is arranged on the outer side of the gas storage, communicates with each water storage bag and is used for forming a circulation water path with the water storage bags. The method is used for temperature control of the tunnel type underground gas storage.

The invention belongs to the technical field of intelligent regulation and control, and discloses an aquaculture pond water quality remote intelligent regulation and control system based on edge calculation. The method aims at solving the problems that in traditional water quality regulation and control, due to data transmission delay, model simplification neglects the coupling effect, and equipment regulation and control lack collaboration. Water quality parameter data are obtained in real time through a parameter acquisition module, a micro-coupling analysis module constructs a parameter micro-coupling matrix at edge nodes, a short-term fluctuation relation is analyzed, a dynamic regulation and control weight is generated, and then a local regulation and control instruction is formed. And the uploading coupling prediction module uploads the data to a cloud end, constructs a long-term coupling prediction model and generates a global regulation and control strategy. And finally, the edge node generates a final regulation and control instruction in combination with the local instruction and the global strategy, and optimizes the working states of the oxygenation equipment, the bait casting equipment and the water circulation equipment. Real-time accurate regulation and control are realized through edge calculation, and the risk of abnormal water quality is reduced; the efficiency is improved through equipment collaborative optimization, and resource waste is reduced.

The invention belongs to the technical field of ship bearings, and particularly relates to a ship bearing radial loading test bench and method for simulating ice load and water immersion working conditions, and the method comprises the steps: installing a to-be-tested intermediate bearing on a test platform, enabling the intermediate bearing to sleeve a test shaft, starting a cooling water circulation system to control the flow, cooling water enters a cooling water coil pipe to establish oil pool cooling circulation; a driving motor is started; a test shaft stably operates through equipment such as a reduction gearbox and the like; a dynamic pressure lubrication state is established, a radial dynamic load or a stable constant load is applied through a hydraulic loading system to simulate an icebreaking load working condition, and a simulated water body is injected into a water tank; the test conditions of the intermediate bearing in a ship immersion environment are constructed through water pressure adjustment, the temperatures of lubricating oil, a bearing bush and cooling water are monitored in real time, the loading force is adjusted through feedback data, and the performance of the intermediate bearing is judged after the test is finished. The problems that ice excitation and soaking environment simulation are insufficient and a loading structure is eccentric in the prior art are solved, and high-precision cooling and thermal stability evaluation are achieved.

The invention relates to the technical field of multi-energy complementary power generation, and discloses an industrial steam supply peak shaving system and method coupling fused salt heat storage and solar energy, and the industrial steam supply peak shaving system comprises a coal-fired power generation system and an industrial steam supply system; in the heat storage mode, the boiler, the steam cooler and the condenser are sequentially connected; in the heat release mode, the high-pressure heater, the primary feed water heater and the low-pressure cylinder are sequentially connected through pipelines; and the feed pump, the secondary feed water heater and the boiler are connected in sequence. In the low ebb of the electrical load, solar energy is used for heating fused salt to store heat, and part of high-temperature steam is extracted from steam-water circulation of the improved coal-fired power generation system to store the heat in a heat storage device and does not enter a steam turbine for power generation; the power load output is adjusted by adjusting the thermal load output of the thermodynamic system in the power generation process, and load decoupling of the boiler and the steam turbine is achieved. And in the electrical load peak, the stored heat energy is released back to steam-water circulation, and the electrical load of the coal-fired power generation system is increased.

The invention discloses quality inspection equipment for automobile thermostat production, and belongs to the technical field of automobile part quality inspection, the quality inspection equipment comprises a rotary detection table and a center column rotatably arranged at the center of the interior of the rotary detection table, and the side wall of the rotary detection table is rotatably provided with a mounting sliding rail playing a supporting role. The top end of the rotary detection table is provided with circumferentially distributed detection grooves, the top end of the rotary detection table is provided with indicating lamps at the detection grooves, and the inner walls of the detection grooves are fixedly connected with mounting rings. By arranging the rotary detection table, the detection mechanism and the water circulation mechanism, the detection mechanism is matched with the water circulation mechanism, the principle of variable control is utilized, interference of other factors is eliminated, hot water is injected into the detection groove in batches, and whether various indexes of the thermostat are qualified or not is judged by monitoring whether the opening and closing distance of a main valve is qualified or not; therefore, the fault reason of the thermostat can be accurately determined, and an indication effect is achieved for factory return overhaul and process improvement of subsequent defective thermostats.

The invention discloses a circulating water temperature control method and system for thermal power generation, and relates to the related technical field of thermal power generation, and the method comprises the steps: collecting real-time monitoring data of condenser outlet water temperature, cooling tower inlet water temperature and environment temperature and humidity data, and generating a dynamic thermodynamic feature set; dynamic compensation analysis is conducted by combining the unit load fluctuation rate and the cooling tower fan rotating speed; according to the temperature gradient change of the circulating water, temperature control deviation is used for correction; cooling water circulation control is conducted on a circulating water system of thermal power generation by predicting the cooling water amount adjusting amount, predicting the temperature overshoot risk level and configuring a control instruction set. The technical problems that in the prior art, due to the fact that a circulating water temperature control model is insufficient in precision and a control strategy lacks dynamic adaptability, the circulating water temperature control precision is insufficient, and the risk cannot be effectively estimated are solved, the temperature overshoot risk is early warned in advance, and the technical effect of improving the accuracy of power generation circulating water temperature control is achieved.

The invention provides a concrete regulation and control system and method integrating heat recovery, spraying and gradient control, and relates to the technical field of concrete curing, and the concrete regulation and control system comprises a temperature sensing element and a humidity sensing element which are mounted on reinforcing steel bars in a concrete structure in a layered manner in the depth direction; the cooling water circulating system comprises a water pump and a cooling water pipe, and the cooling water pipe is arranged in the mass concrete structure and externally connected with a variable frequency circulating pump; the double-water-tank system is matched with the heater to realize graded regulation of water temperature; the automatic spraying system is connected with the integrated electric heating module; the heat recovery and circulation assembly is connected with an outlet of a cooling water pipe in the concrete, recovers concrete hydration heat brought out by the cooling water pipe, and transfers heat of high-temperature cooling water with the temperature being 50 DEG C or above to the phase change heat storage tank; the central control unit continuously receives and records monitoring data of the temperature sensor and the humidity sensor and analyzes the monitoring data in real time, and when the temperature gradient or the humidity gradient exceeds the limit, a gradient field control instruction is automatically triggered to achieve energy efficiency maximization.

The utility model discloses a transformer with high heat dissipation performance, and relates to the technical field of transformers. The transformer comprises a transformer body, heat dissipation fins are fixedly arranged on the side wall of the transformer body, a bottom plate is fixedly arranged on one side of the bottom of the transformer body, and a cooling box is installed on the upper surface of the bottom plate. Cooling water flows from the first cooling water pipe, heat on the heat dissipation fins can be taken away, the temperature of the heat dissipation fins can be reduced, the cooled heat dissipation fins can conveniently and efficiently absorb heat to the transformer body to cool the transformer body, the cooling water flows into the second cooling water pipe, and the heat dissipation effect of the transformer body is improved. At the moment, the heated cooling water flows in the second cooling water pipe, and the cooling water in the second cooling water pipe is cooled by the fan, so that the temperature of the cooling water absorbing heat is reduced, heat on the cooling fins can be better cooled during water circulation, and the cooled cooling fins can more effectively cool the transformer body.

The invention provides an intelligent data monitoring analysis method and system of a solar seawater desalination system. The method comprises the following steps: calculating condensation efficiency based on annular temperature gradient distribution data and phase change characteristic data according to the phase change characteristic data and environment temperature data of steam in a condensation pipe in a condensation process; the condensation efficiency and the environment temperature data are input into a pre-trained reinforcement learning parameter optimization model, and in combination with physical constraint conditions of the condensation structure, flow adjusting parameters and deflector deflection angle adjusting parameters of all subareas are generated; and the flow adjusting parameters and the deflector deflection angle adjusting parameters of all the partitions are converted into corresponding electric adjusting valve opening degree instructions, and the adjusting valve opening degrees of the cooling water circulation systems corresponding to the different partitions and the angle of the angle-adjustable deflector are adjusted. The cooling water flow and the deflection angle of the guide plate are optimized in real time through reinforcement learning, and efficient and energy-saving self-adaptive regulation and control of the condensation system are achieved through temperature and phase change data monitoring.

The invention discloses a big data-based machine tool fault diagnosis and analysis method and system. The method comprises the following steps of: acquiring signal data of each part of a machine tool by utilizing a sensor; carrying out de-noising processing on the acquired signal data; the de-noised signals are decomposed by using successive variational mode decomposition, screening is carried out based on a Pearson's correlation coefficient, and the unscreened signals are fused and then are subjected to signal reconstruction with the screened signals; the method comprises the following steps: constructing a fault diagnosis model based on an Adaboost-Reformer integrated algorithm, and optimizing hyper-parameters of the Reformer model by using an improved water circulation optimization algorithm; the reconstructed signals are divided into a training set and a test set, the training set is input into the optimized model for training, machine tool signals collected in real time are input into the trained model after being subjected to denoising and reconstruction processing, and corresponding fault categories are obtained. The method can effectively extract fault features from the multi-mode sensor signals and perform accurate diagnosis, has strong robustness and high efficiency, and is suitable for intelligent fault diagnosis of industrial equipment.

The invention relates to the technical field of sewage treatment, in particular to a dynamic control method applied to a culture tail water circulation treatment system. The method comprises the following steps: continuously detecting aquaculture tail water on a water inlet pipeline, calculating the ratio of chemical oxygen demand to five-day biochemical oxygen demand as a first degradation index, and calculating the ratio of ultraviolet absorbance to total organic carbon concentration as a second degradation index; according to the first degradation index and the second degradation index, identifying aging complementary and range complementary organic load degradation characteristics, and determining a process treatment path based on the organic load degradation characteristics; performing primary pretreatment on the aquaculture tail water in different process treatment paths to obtain intermediate water quality data; detecting the ammonia nitrogen concentration of the intermediate water quality data, and extracting the time change rate of the ammonia nitrogen concentration as an ammonia nitrogen conversion parameter. According to the invention, the oxygen utilization efficiency and the removal rate of organic matters and nitrogen are improved through regional dissolved oxygen and function configuration optimization.

The invention relates to an intelligent mattress water temperature control method and system based on artificial intelligence. Body temperature data and environment temperature data of a user are collected in real time through a plurality of sensors in a mattress. According to the collected data, the current comfortable temperature interval of the user is calculated through a preset comfortable temperature model. And an initial water temperature regulation control strategy is generated in combination with the calculated comfortable temperature interval and historical sleep data of the user, and the strategy is used for controlling a temperature control unit in a water circulation system in the mattress. In the water temperature adjusting process, the system continuously monitors the body temperature change, the environment temperature change, the sleep state and the mattress surface temperature of the user and records generated sleep data. Through the pre-trained neural network model, the personalized temperature control strategy is generated, and finally the strategy is applied to the temperature control unit in the water circulation system, so that accurate water temperature adjustment based on the actual sleep state and the temperature requirement of the user is realized, and the sleep comfort of the user and the intelligent level of water temperature control are improved.

The invention belongs to the field of air treatment equipment, and particularly relates to a water carrier negative ion generating device. Comprising a water carrier anion generating structure and a water supply device, the water carrier negative ion generation structure generates negative air ion airflow and water mist in an internal and external airflow duct mode, and water carrier negative ions are output after the water mist is guided to flow in the same direction and mixed through the injection effect of the negative air ion airflow; the water supply device supplies water to the water carrier negative ion generation structure in the mode that water is stored below the water carrier negative ion generation structure, condensate water is recycled, and water is transferred and conveyed from the upper portion of the water carrier negative ion generation structure. According to the water supply system, long-distance water carrier negative ion conveying can be provided, stored water, supplied water and condensed water can form a closed-loop water circulation system, compared with a traditional open type water supply system, the water saving rate is remarkably increased, and the loss of the condensed water is reduced.

The invention discloses a bullfrog three-dimensional breeding system and an accurate feeding control method, and the bullfrog three-dimensional breeding system is characterized in that the bullfrog three-dimensional breeding system comprises a modular breeding unit, a gradient water level adjusting device and an interlayer isolation water circulation system, the three-step type three-dimensional framework is divided into a bottom layer tadpole pond, a middle layer froglet net cage and a top layer adult frog breeding bin, a control module is installed on each layer, and anti-escape assemblies are installed on the middle layer froglet net cage and the top layer adult frog breeding bin; the gradient water level adjusting device comprises a bionic step and a water level sensor which are arranged and installed, and the water level gradient adjusting and behavior inducing functions are achieved through engineering design. The interlayer isolation water circulation system comprises a distributed sensor, a UV sterilization and biological membrane filtration dual purification assembly and an adjustable air curtain, the adjustable air curtain forms a directional barrier between different layers of the three-dimensional culture system by dynamically regulating and controlling airflow, and independent environmental parameters of each layer are maintained.

The utility model belongs to the technical field of paint spraying tail gas treatment, and provides a water curtain cyclone paint spraying cabinet which comprises a cabinet body, a water curtain mechanism, a cyclone mechanism and a water circulation mechanism, the water curtain mechanism, the cyclone mechanism and the water circulation mechanism are respectively installed on the cabinet body, a suction cavity and a treatment cavity are arranged in the cabinet body in parallel, and the water curtain mechanism comprises a water curtain plate and a water tank arranged at the top of the water curtain plate. The water curtain plate is arranged on the side, close to the treatment cavity, of the suction cavity, the cyclone mechanism comprises a cyclone cylinder and a louver fan, the cyclone cylinder is arranged in the treatment cavity, the louver fan is rotationally arranged in the cyclone cylinder, the water circulation mechanism comprises a water tank, a water pump, a first flow guide plate and a baffle, the water tank is arranged at the bottom of the cabinet body, and the water pump conveys water in the water tank to the water tank and the cyclone cylinder; one end of the baffle plate is connected with the water curtain plate, the other end of the baffle plate extends towards the treatment cavity, the baffle plate covers the first guide plate, and the baffle plate and the first guide plate form a channel for communicating the suction cavity with the cyclone cylinder. The paint spraying waste gas treatment device is simple in structure and high in paint spraying waste gas treatment rate.

The invention provides a magnesium-aluminum alloy casting molding cooling device, which relates to the technical field of casting process equipment, and comprises a cooling pool, a mounting rack fixed on the top of the cooling pool, a chain conveying belt arranged on one side of the mounting rack, a plurality of clamping mechanisms arranged at the bottom of the chain conveying belt in a transmission manner, and a cold air mechanism arranged on the cooling pool, a water circulation frame is arranged on the side, away from the cold air mechanism, of the top of the cooling pond. When a limiting block slides to the end part of the inner wall of a concentric-square-shaped limiting frame, a second bevel gear is meshed and matched with a first bevel gear, a third bevel gear is meshed and matched with a fourth bevel gear, and a started chain conveying belt drives a filtering assembly to move towards one side of a low filtering plate along a threaded rod, so that the whole filtering assembly moves towards the other side of the cooling tank; the difficulty of cleaning metal scraps in the cooling pond is reduced, water impurities in the cooling pond can be concentrated in the filtering assembly, and power output in the impurity collecting process is reduced.

The invention relates to the technical field of dry type transformers, in particular to a dry type transformer which comprises a transformer body, the transformer body comprises a high-voltage coil and a low-voltage coil, the high-voltage coil is connected to the outer side of the low-voltage coil in a sleeving mode, a gap is reserved between the high-voltage coil and the low-voltage coil, and a plurality of vertically-through air channels are formed in the high-voltage coil and the low-voltage coil. Air guide pieces are arranged on the upper sides and the lower sides of the high-voltage coil and the low-voltage coil, and air ports of the air guide pieces are matched with air channel openings of the high-voltage coil and the low-voltage coil and gaps between the high-voltage coil and the low-voltage coil. According to the dry-type transformer, air circulation heat dissipation and water circulation cooling are combined through the integrated air channel, the heat dissipation calandria, the circulating fan and the water pumping device, the heat dissipation efficiency of the dry-type transformer is improved, the dry-type transformer can keep good heat dissipation performance in a closed or limited space, meanwhile, through the designed transmission mechanism, the heat dissipation efficiency of the dry-type transformer is improved, and the heat dissipation efficiency of the dry-type transformer is improved. Vibration energy generated when the transformer body works is converted into driving force of the water pumping device, and recycling of the vibration energy is achieved.

The invention belongs to the technical field of battery thermal management systems, and particularly relates to a battery thermal management system and a control method and device of a compressor in the battery thermal management system. The method comprises the steps that in the operation process of a compressor in a refrigerant circulation loop of the battery thermal management system, when the actual water outlet temperature between a water outlet of a heat exchanger in a water circulation loop of the battery thermal management system and a water inlet of a battery pack is reduced to the difference between the actual water outlet temperature and a target water outlet temperature which is smaller than or equal to a first set temperature difference; and controlling the compressor to decelerate. As the actual outlet water temperature is close to the temperature of the battery pack at the moment, even if the compressor runs at a reduced speed and the refrigerating capacity is reduced, the cooling of the battery pack is not influenced, and the refrigerating effect of the battery heat management system is not influenced; therefore, according to the control method of the compressor in the battery thermal management system, the refrigeration effect is guaranteed, and the energy consumption of the compressor is reduced.

The invention discloses an intelligent control system for construction site water recycling, which belongs to the field of construction site wastewater treatment and comprises a water quality monitoring module, a collection and treatment module, a chemical treatment module, a filtration treatment module, an evaluation and detection module, a clear water recovery module, an analysis and decision module, an interaction report module and a monitoring and early warning module. The system can accurately control the dosage of chemicals, reduce the operation cost, reduce the excessive use of chemicals, reduce the risk of chemical residues after sewage treatment, improve the environmental protection property, improve the accuracy of the treatment effect, improve the operation flexibility of the system, ensure the quick response of the system to the dynamic demand of a construction site, and improve the construction efficiency. Resource waste or system operation interruption caused by manual decision lag is avoided, scientificity and credibility of a system operation strategy are improved, acceptance and implementation of a construction party or a supervision party are facilitated, the comprehensive operation efficiency of the system is improved, and the service life of equipment is prolonged.

The invention discloses a heat allocation system based on a heat pump. The heat allocation system comprises a water tank; a water source heat pump; an air source heat pump; a cooling tower; a cooling water circulation system; a hot water circulation system; a chilled water circulation system; an exhaust heat recovery system; wherein the water tank, the water source heat pump, the air source heat pump, the cooling tower, the cooling water circulation system, the hot water circulation system, the chilled water circulation system and the exhaust heat recovery system are connected with one another to realize heat allocation, especially heat allocation of a coating pretreatment electrophoresis production line of a vehicle body or parts forming the vehicle body; according to the system, heat generated when the heat pump / refrigerating unit produces chilled water and / or heat taken away in exhaust air can be recycled and used for heating the heat using tail end. Therefore, the heat which is wasted originally can be fully utilized, the energy consumption is reduced, and the utilization efficiency of energy is improved.

The invention belongs to the technical field of multi-energy complementation, and relates to a solar energy-geothermal energy multi-energy complementation heat storage water tank heat supply system and a control method, and the solar energy-geothermal energy multi-energy complementation heat storage water tank heat supply system comprises a domestic hot water-heat storage dual-purpose water tank, a solar panel, a middle-deep layer buried pipe heat exchanger, a ground source heat pump and user side water; the domestic hot water-heat storage dual-purpose water tank is used as an intermediate component for cross-seasonal heat storage to store heat and is also used for providing domestic hot water for a user; the domestic hot water and heat storage dual-purpose water tank is communicated with the solar panel, the middle-deep layer buried pipe heat exchanger and the ground source heat pump in a water way circulation mode, and the domestic hot water and heat storage dual-purpose water tank is further communicated with a user side for water use. According to the multi-energy complementary heat supply system, the advantages of solar energy and geothermal energy are integrated, the seasonal imbalance of the solar energy is overcome, the safety and stability of the geothermal energy are integrated, the resource utilization rate is increased, meanwhile, the operation cost is reduced, no pollution or emission is generated, the occupied area is small, and the manufacturing cost is saved.

The utility model discloses a novel efficient energy storage air cooling air conditioning system which comprises a compressor, a three-phase heat exchanger I, a three-phase heat exchanger II, an outer fan, an inner fan, a capillary tube, a water pump, an expansion kettle, a drying tank and an air bellow. A first cavity and a second cavity which are independent are formed in the air bellow, an inner fan and a three-phase heat exchanger II are arranged in the first cavity, and an outer fan and a three-phase heat exchanger I are arranged in the first cavity; on the basis, a refrigerant circulation system and a cooling water circulation system are constructed. According to the air cooling system, the refrigerant circulation system or the cooling water circulation system can be selected to work in time according to the temperature of the external environment and the return air temperature of the air bellow, so that the heat dissipation requirement of the air cooling system under the condition that the environment temperature is high can be met, and meanwhile the use frequency of the compressor is reduced when the environment temperature is low; power consumption is reduced and system efficiency is improved.

The invention discloses an automatic mixing water tank for a sediment density flow circulation test, comprising a water tank which is divided into a test pool and a muddy water pool by a lifting gate; the water circulation system comprises a clear water recovery pool and a muddy water recovery pool, the clear water recovery pool is used for injecting water into the test pool, the muddy water recovery pool is used for receiving muddy water discharged from the test pool, the clear water recovery pool is communicated with the muddy water recovery pool, and a muddy water filter is arranged at the communication part; the silt mixing unit comprises a silt storage tank, a mixer and a layered pressure measurer, the silt storage tank is used for releasing silt to the muddy water pool, the mixer is used for stirring in the muddy water pool, and the layered pressure measurer is used for monitoring the sand density of different water layers in the muddy water pool in real time; and the control system is used for controlling the water circulation system and the silt mixing unit to carry out automatic mixing.

The invention relates to the technical field of energy power, in particular to a fuel cell system based on a solid hydrogen pool and a hydrogen-electricity conversion efficiency determination method. The fuel cell system comprises a solid hydrogen pool module, a fuel cell module and a coupling module which are integrally assembled, the solid hydrogen pool module comprises a hydrolysis hydrogen releasing pool and a solid hydrogen storage component, the fuel cell module comprises an electrolytic tank and a proton exchange membrane, and the coupling module comprises a hydrogen conveying unit and a water circulation unit. The hydrogen conveying unit is used for conveying hydrogen released by the solid hydrogen storage component into the electrolytic tank for electrochemical reaction, and the water circulation unit is used for extracting an aqueous solution containing unelectrolyzed hydrogen in the electrolytic tank into the hydrolysis hydrogen release tank for hydrolysis hydrogen release reaction. The hydrogen element in the aqueous solution can be recycled for the second time in the hydrolysis hydrogen release tank and the electrolytic tank, so that the double hydrogen production effect is achieved, and the energy storage and hydrogen-electricity conversion efficiency is greatly improved.

The invention discloses an anti-scouring test device. The anti-scouring test device comprises a stirring assembly, a supporting frame, a scouring water tank, a sample mold, a filtering tank and a measuring assembly, the stirring assembly is erected above the flushing water tank through a supporting frame, and the stirring end of the stirring assembly extends into the flushing water tank; the sample mold is arranged below the washing water tank and is detachably connected and communicated with the bottom of the washing water tank; a water inlet and a water outlet of the filter tank are respectively connected with a flushing water tank pipeline, and a valve is arranged on the pipeline; the measuring end of the measuring assembly extends into the washing water tank to measure washing data. On one hand, water circulation of the scouring experiment is achieved, on the other hand, redundant sediment in water is filtered, impact of sediment damaged by scouring on the surface of a sample is reduced, and on the other hand, the amount of the filtered sediment can be used for evaluating the anti-scouring performance of the solidified soil after the test is finished.

The utility model discloses a multifunctional distribution transformer which comprises a bottom plate, the inner wall of the bottom plate is in sliding connection with a limiting shaft, the top end of the limiting shaft is fixedly connected with a fixing plate, the top face of the fixing plate is fixedly connected with a transformer body, and a liquid changing assembly is started to inject cooling liquid into a liquid storage tank. The transformer body operates to generate vibration, the limiting shaft is pushed by the fixing plate to slide downwards along the bottom plate to extrude the elastic damping mechanism, the vibration force is reduced through resilience force and friction force generated by the elastic damping mechanism, and the refrigeration assembly is started to reduce the temperature of cooling liquid. The water circulation mechanism is started to drive the cooling liquid to circularly and quickly cool and dissipate heat of the transformer body through the circulation pipe and the heat dissipation fins, so that the purpose of conveniently performing multifunctional vibration reduction and heat dissipation protection work on the distribution transformer is achieved, and vibration force and heat generated by operation of the transformer are avoided; the transformer is easy to damage due to overheating in a high-temperature environment, and the service life of a fixed part of the transformer is shortened.

The invention relates to the technical field of coal chemical industry, in particular to a coal gasification black water circulation and black water waste heat recycling system and method. The coal gasification black water circulation and black water waste heat recycling system comprises a synthesis gas washing tower, a high-pressure flash tank, a low-pressure flash tank, a black water heat exchanger, a vacuum flash tank, a settling tank, a grey water tank, a low-pressure flash steam stripping tower and a high-pressure flash steam stripping tower. The coal gasification black water treated by the coal gasification black water circulating and black water waste heat recycling system can be reused as circulating water of a synthesis gas washing tower, so that the cyclic utilization of water resources is realized, the use of fresh water and the discharge of waste water are reduced, and the production cost and the environmental pressure are reduced. Meanwhile, the problem that a black water pipeline is scaled and blocked due to high temperature is solved, waste heat of the black water can be fully replaced for effective utilization, carbon is reduced, energy is saved, the purpose of cooling the black water is achieved, the cooling cost of a vacuum flash evaporation system is saved, and continuous and reliable economic benefits are created for enterprises.