1057 results about "Water chiller" patented technology

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.

The invention relates to a data center equipment type selection method based on electrical and heating ventilation load linkage, and belongs to the technical field of data center infrastructure design. The model selection method comprises the steps of setting basic data, obtaining the number of machine rooms and the number of IT devices in a single machine room, obtaining the total power of the IT devices, setting an energy efficiency index set value, obtaining the project power consumption scale, obtaining the total cooling load, selecting models of air conditioners at the tail ends of the machine rooms and substations, selecting models of water chilling units, selecting models of heat exchangers, selecting models of cooling water pumps and chilled water pumps and selecting models of cooling towers. And obtaining the total power of the air conditioner, obtaining an energy efficiency index accounting value, and carrying out PUE verification. According to the method, through closed-loop iteration of electrical load-heating and ventilation load-PUE, model selection and quantity selection of all key equipment are completed at a time; professional splitting, repeated adjustment and modification and capacity redundancy caused by traditional serial design are avoided, the design period is remarkably shortened, and initial investment is reduced.

The invention relates to an urban rail transit station ventilation and air conditioning system cooperative control method, device and equipment based on dynamic energy efficiency optimization and a medium. Constructing an energy efficiency model of the ventilation and air conditioning system by combining the energy efficiency curved surface characteristics of the water chilling unit and the cubic law power consumption characteristics of the frequency conversion equipment; an intelligent optimization algorithm is adopted, a dynamic scaling temperature feasible domain of chilled water of a water chilling unit and a frequency interaction limitation domain of frequency conversion equipment are constructed, the feasibility of a temperature set value is kept, meanwhile, coupling constraints in the frequency conversion equipment are decoupled, and an optimal parameter combination is solved; and the optimal parameter combination is issued to an execution layer, the actual energy efficiency ratio deviation of the system is monitored in real time, and energy efficiency model parameter re-calibration or iterative optimization is triggered according to a deviation threshold. Therefore, the overall energy efficiency of the ventilation air conditioning system is stably improved, and efficient operation under the dynamic working condition is achieved.

The invention belongs to the technical field of storage and charging equipment, and particularly relates to a storage and charging all-in-one machine which comprises a shell cooling mechanism, the interior of a shell is divided into a battery bin and an inversion bin, a battery module is arranged in the battery bin and comprises a plurality of stacked battery cells, an alternating-current and direct-current inverter is arranged in the inversion bin, and the battery cells are connected with the alternating-current and direct-current inverter. And the AC / DC inverter is electrically connected with the battery module. According to the invention, a closed-loop liquid cooling circulation system is adopted, heat conduction liquid can rapidly take away heat when the battery cell works, performance degradation or potential safety hazards of the battery cell caused by too high temperature are avoided, the heat dissipation area is increased through the design of the circuitous and surrounding insulating heat conduction pipe, and the cooling efficiency is obviously higher than that of a traditional air cooling scheme in cooperation with constant temperature control of the industrial water cooler. The shell is divided into the battery bin and the inverter bin, the battery module and the alternating current and direct current inverter are arranged in a partitioned mode, mutual interference of heat generated when the battery and the inverter work can be properly avoided, maintenance of all parts is facilitated, and the operation stability of equipment is improved.

The invention relates to the technical field of printing equipment, in particular to a printing ink drying device for anti-counterfeiting stained paper, which comprises a rack, a conveying mechanism is arranged above the rack, a drying box body is arranged above the conveying mechanism, and the drying box body is sequentially divided into a leveling preheating area, a main curing area and a forced cooling area along the conveying direction; the conveying mechanism comprises a high-temperature-resistant conveying mesh belt and a vacuum adsorption platform arranged below the mesh belt; an LED-UV cold light source assembly is arranged in the main curing area, infrared heating pipes transversely arranged in the leveling preheating area and a reflecting cover above the infrared heating pipes are matched with the LED-UV cold light source assembly with a water-cooling circulation flow channel in the main curing area and an external cooling-water machine, and printing ink is evenly heated through infrared radiation to be leveled firstly; curing is completed through low-temperature ultraviolet light, a light source is cooled synchronously in a circulating mode, the effects of ink flat curing and paper low-heat deformation are achieved synchronously, and high-speed continuous operation is effectively supported.

The invention relates to the field of equipment control, in particular to an equipment energy-saving control system and method based on an AI large model, and the system comprises an equipment sensing module, a load prediction module, a fuzzy control module, a wind-water joint debugging module and an energy efficiency optimization module, the equipment sensing module is used for determining the thermal gain in a region, the load prediction module is used for generating a pre-control decision, and the fuzzy control module is used for generating a fuzzy control result; the fuzzy control module is used for calculating static pressure and air supply volume, the air-water joint debugging module is used for correcting the air supply volume of each area, and the energy efficiency optimization module is used for planning the refrigerating capacity supply efficiency of the air conditioner in different time periods. The stable operation of equipment such as an air-conditioning compressor, a water pump and a fan is guaranteed; the reliability of an energy-saving control system is enhanced; the energy consumption cost of building operation is reduced; and the comprehensive energy efficiency of an air-conditioning system is improved.

The invention provides a wind-water linkage energy-saving control system for an urban rail transit underground station. The wind-water linkage energy-saving control system comprises a management layer; the control layer is divided into three relatively independent and expandable cooperative control subsystems capable of independently acquiring information according to the type of equipment, the control layer comprises a large system cooperative control subsystem, a small system cooperative control subsystem and a water system cooperative control subsystem, and the cooperative control among the cooperative control subsystems is completed by the management layer platform; a control strategy of the urban rail transit underground station wind-water linkage energy-saving control system comprises a system calendar scheduling strategy; a system control strategy; comprising a large system air conditioner adding strategy, a large system air conditioner reducing strategy, a water system starting working condition setting strategy, a water system operation working condition switching strategy, a cooling water temperature difference optimization setting strategy, a chilled water temperature difference optimization setting strategy, a most unfavorable tail end pressure difference setting strategy, a most unfavorable tail end pressure difference control strategy and a water chilling unit adding strategy. A water chilling unit reduction strategy, a water chilling unit alternation strategy and a water chilling unit operation load balancing strategy; and the system cooperative control comprises one-key startup of the water chilling machine room, one-key shutdown of the water chilling machine room, one-key startup of the water chilling unit, one-key shutdown of the water chilling unit, automatic addition of the water chilling unit and automatic reduction of the water chilling unit.

The invention relates to the technical field of precise temperature control, and discloses a liquid level temperature control system of an industrial water chiller, which comprises a liquid level adjusting loop, a temperature adjusting loop and a cooperative control device with a one-way logic channel, and calling a preset flow mapping model to check a mass flow estimated value, calculating an instantaneous enthalpy flow change rate introduced by a water supplementing action, converting the instantaneous enthalpy flow change rate into a feedforward compensation signal, superposing the feedforward compensation signal to a temperature adjusting loop, and executing model parameter self-calibration logic based on thermal response residual. Zero time difference immunization on water replenishing thermal disturbance is realized; meanwhile, flow model parameters are reversely corrected through temperature residual errors, and the adaptive capacity of the system for resisting water pressure fluctuation and assembly aging under the flowmeter-free working condition is improved.

The invention discloses an efficient refrigerating machine room energy-saving automatic control system based on reinforcement learning, and the system comprises the following modules: an operation data collection module which is used for collecting key equipment operation parameters and generating unified time sequence data; the energy consumption modeling module constructs energy consumption mathematical models of the water chilling unit, a water pump and a cooling tower and stores the energy consumption mathematical models into a database; the cooling capacity prediction module is used for predicting the future cooling capacity demand based on the historical data and the environmental parameters; the feed-forward optimization module is used for optimizing power distribution by using an adaptive particle swarm algorithm and generating control parameters; the state correction module automatically adjusts the running state according to the running efficiency deviation condition; the cooling strategy optimization module introduces an improved DSAC algorithm to optimize a cooling control strategy; and the instruction deployment module deploys the strategy to an actual system and outputs a regulation and control instruction. The energy efficiency management level of the refrigerating machine room is improved, and integration of energy conservation and intelligent control is achieved.

The invention provides a multi-scene heterogeneous fusion and multi-system collaborative optimization method and system for an air conditioning system of a large hydropower station. The method comprises the following steps: firstly, acquiring equipment operation data and weather environment parameters related to the air conditioning system; establishing a multi-scene isoproton model and an operation cycle adaptive fusion building cold load prediction model; an underground building load prediction model based on mechanism-data fusion is constructed based on the equipment operation parameters and unsteady state heat transfer of underground building rock wall heat storage; capturing a long-term interaction relationship between meteorological factors and personnel behavior factors based on a self-attention mechanism of Transform, and establishing a meteorological-personnel behavior multi-factor coupled building load prediction model; and in combination with cold source characteristics and equipment performance constraints of different types of water chilling units of all the sub-air-conditioning systems and different terminal requirements of underground equipment areas, offices and the like, an operation optimization method for cross-system cold source dynamic allocation and terminal parameter self-adaptive adjustment is established. Intelligent optimized operation of a large hydropower station complex building air conditioning system can be achieved.

The invention discloses a large-scale cruise ship water chilling unit pipe network cold storage intelligent energy-saving control method based on double-layer deep reinforcement learning, which comprises the following steps: 1, carrying out inherent cold storage engineering modeling on a chilled water pipe network of a water chilling unit to obtain an energy balance relationship between equivalent cold storage capacity and cold release sustainable time of the pipe network and bearable cold capacity; the relationship is used as a physical prior to introduce strategy learning and a security boundary; 2, constructing a double-layer deep reinforcement learning architecture; 3, a safety layer is additionally arranged in the double-layer deep reinforcement learning architecture, the safety layer cuts and projects output feasible regions of a target layer and a sublayer through a hard constraint and barrier mechanism, the water supply temperature, the temperature difference, the start-stop interval, the condensation temperature and the power change rate are ensured, and the maritime affair safety requirement is met; and 4, on the basis of a pipe network inherent cold storage model, a double-layer deep reinforcement learning framework and a safety layer, peak load shifting control of low-load cold charging-high-load cold discharging is achieved, and unit cold energy consumption of the water chilling unit is reduced.

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 invention relates to the technical field of refrigeration equipment intelligent supervision, and discloses a refrigeration equipment operation supervision method and system based on multi-dimensional data analysis, and the method comprises the steps: collecting multi-dimensional operation data of refrigeration equipment; remote start-stop control and operation parameter adjustment are carried out on the equipment, and a control task is automatically executed based on a preset schedule; monitoring equipment states in real time, setting dynamic early warning thresholds according to equipment types and working conditions, and performing graded early warning; fusing and analyzing the multi-dimensional data, generating a correlation analysis chart and calculating a comprehensive energy efficiency ratio; and an operation strategy is dynamically optimized through a data driving model, and the optimal number of water chilling units, the chilled water temperature and the cooling tower fan rotating speed are solved. The system corresponds to the method. According to the application, the problems of single traditional supervision data, low control efficiency, inaccurate early warning and the like are solved, closed-loop supervision is realized, the equipment operation efficiency is improved, and the energy waste is reduced.

The invention relates to the technical field of dry-type heat exchanger equipment, in particular to a dry-type heat exchanger assembly for a water chiller, which comprises a front shell and a rear shell which are detachably connected through bolts. A supporting frame is fixedly arranged in the rear shell, the supporting frame is connected with the inner wall of the rear side of the rear shell through four fixing rods, a coil pipe is erected, and the coil pipe is sleeved with a plurality of fins. A cleaning mechanism is arranged at the top of the rear shell, comprises a supporting block, a sliding block, a brush plate and a driving assembly and is used for automatically cleaning dust on the surfaces of the coil pipe and the fins. A ventilation hole is formed in the front side wall of the front shell, a fan is installed, a dust filtering mesh cover capable of being conveniently disassembled is arranged, a groove is formed in the rear side of the dust filtering mesh cover and slidably connected with the sealing strip in an inserted mode, and clamping grooves in the two sides are matched with a clamping mechanism to achieve rapid assembly and disassembly. Impurities are effectively intercepted through the dust filtering mesh cover and the clamping mechanism, and the pollution speed and the cleaning frequency of the heat exchange coil pipe are reduced; meanwhile, an automatic cleaning and blowing system is integrated, the cleaning efficiency is improved, and the heat exchange effect and the continuous operation reliability of equipment are guaranteed.

The invention relates to the field of cooling-water machines, and particularly discloses highly-integrated laser cooling-water equipment which comprises a laser cooling-water machine. The graded cold water circulating device is connected with the top side of the laser water chiller; the flow dividing pipe assembly is connected with the grading cold water circulating device; the cooling liquid master control device is connected with the laser water chiller; an intelligent adjusting module; the staged cold water circulation device comprises a stepped cold water tank assembly and a water tank assembly, a middle driving assembly; the cooling liquid master control device comprises a liquid inlet control assembly and a liquid outlet control assembly, wherein the liquid inlet control assembly is connected with the laser cooling-water machine; the liquid discharge control assembly is connected with the laser water chiller; through cooperative work of the stepped cold water tank assembly, the flow dividing pipe assembly and the like, the cooling liquid flow can be distributed according to needs, and multi-assembly cooperative control is achieved through the intelligent adjusting module. The inclined arrangement and the water disturbing plate accelerate heat removal, and the liquid inlet and outlet control assembly facilitates replacement of cooling liquid.

The invention relates to the field of energy efficiency monitoring, in particular to an industrial park energy efficiency monitoring method and system based on digital twinning, and the method comprises the steps: collecting a source thermal shock temperature, a cooling water flow, a pipe network environment temperature and the actual power consumption of a water chilling unit, and calculating a benchmark reference temperature through a sliding time window; a transient thermal power deviation degree is obtained by combining a current temperature difference value and a cooling water flow so as to quantify thermal load disturbance, then a heat flow transmission delay step length is calculated by combining pipe network parameters and the cooling water flow so as to obtain dynamic thermal shock strength, and finally a drift correction factor is calculated through the strength, and an ARIMA model coefficient is adjusted so as to quantify thermal load disturbance. And predicting an expected energy consumption baseline and comparing actual power consumption to judge the running state of the unit. By sensing the upstream working condition, restoring the pipe network transmission characteristics and adaptively correcting the ARIMA model, accurate energy efficiency monitoring is achieved, and false alarm is avoided fundamentally.

The invention relates to the technical field of environment control, and discloses a time-sharing optimization control method for a cold storage central air conditioner based on a large model, which comprises the following steps of: firstly, acquiring a system cold demand quantity and an environment working condition predicted value at a future moment through a pre-trained deep learning model, and estimating a current cold storage charging and discharging state in combination with a thermal front degradation correction algorithm; then, a non-linear flow resistance model associated with the porosity and the cold storage state is established, and a hydraulic high-energy-consumption interval in which fluid resistance is highly sensitive to flow change is recognized; and on the basis, deducing the energy efficiency trend of the water chilling unit by utilizing the environment temperature to determine load distribution, actively inhibiting cold storage output in a high flow resistance interval through energy efficiency gating logic, and finally generating a time sequence control strategy containing flow and load instructions to realize optimal scheduling of system-level energy efficiency.

The invention relates to the technical field of automatic control, in particular to a pipeline blockage risk identification and early warning method for multiple water chilling units of a central air conditioner, which comprises the following steps: collecting a cold water pressure difference signal, processing temperature difference data, extracting offset characteristics, analyzing a temperature track, identifying sudden change and matching flow response, and judging response abnormity. According to the method, the blockage head is identified through the differential pressure change rate jump, the response sensitivity is enhanced, the temperature difference continuous offset and the differential pressure event are combined, the identification accuracy and time efficiency are improved, the temperature sudden change and the flow response rhythm are superposed, a physical chain verification mechanism is constructed, and the high-frequency abnormal pipe section is identified. The reliability of analysis logic is enhanced, response interval and adjustment period consistency analysis is introduced, the adaptive capacity under complex working conditions is improved, pipe sections are collected according to abnormal frequencies, a multi-feature structured result is output, the data support of maintenance decision is enhanced, and the perspectiveness of blockage recognition is improved through multi-source feature fusion and time sequence rule judgment.

A hydrocarbon cleaning agent recovery and industrial wastewater reduction device belongs to the technical field of evaporation and concentration and comprises a distillation kettle, an evaporator, a first partition plate heat exchanger, a second partition plate heat exchanger, a cleaning agent liquid storage tank and a distilled water liquid storage tank. The distillation still is connected with the first partition plate heat exchanger and the second partition plate heat exchanger through the evaporator, the first partition plate heat exchanger is connected with the cleaning agent storage tank, the second partition plate heat exchanger is connected with the distilled water storage tank, the first partition plate heat exchanger is connected with the distillation still, and the second partition plate heat exchanger is connected with the evaporator. The equipment can simultaneously treat waste cleaning agents and waste water, does not need a cooling-water machine of traditional recovery equipment and a core component compressor of an evaporator, greatly saves equipment cost, and greatly reduces waste liquid treatment cost.

The invention provides a water chilling unit which comprises a compressor and a condenser, an outlet of the compressor communicates with an inlet of the condenser through a compressor outlet pipeline, and a check valve with a magnet is further arranged in a discharging pipeline. When the water chilling unit normally operates, the check valve is kept at the maximum opening degree through the magnets with attracted heteropoles, and when the water chilling unit stops operating, closing of the check valve is buffered through the magnets with repulsive homopoles.

In the conventional refrigerant leakage detection method, when a failure occurs in the temperature sensor or the pressure sensor, the refrigerant leakage may not be detected.SOLUTION: The refrigerant leakage detection system 1 includes the chiller 10 and the input unit 110. The chilled water chiller 10 has a refrigerant circuit 50 through which a refrigerant circulates. The input unit 110 acquires the degree of supercooling and the expansion valve opening degree from the cold water chiller 10. The controller 120 performs refrigerant leakage determination using the degree of subcooling, or refrigerant leakage determination using the expansion valve opening degree. When the priority of the refrigerant leak determination using the degree of subcooling is higher than the priority of the refrigerant leak determination using the expansion valve opening degree, the controller 120 switches between the refrigerant leak determination using the degree of subcooling and the refrigerant leak determination using the expansion valve opening degree on the basis of whether or not the degree of subcooling is normal.SELECTED DRAWING: Figure 4

The high-precision flexible laser welding production line based on visual recognition comprises a rack and a three-partition wire groove formed in the rack, and the three-partition wire groove is used for installing a high-voltage cable, a low-voltage cable and a signal cable. A conveying system, a motion control system, a laser welding system, a closed-loop cooling system and a control system which are in butt joint with a CCS line body conveying device are arranged on the rack, the cooling system comprises a cooling-water machine and a nitrogen flow meter, deionized water is adopted as a cooling medium, the water temperature control precision is + / -1 DEG C, the cooling flow is 5-20 L / min, and the control system is connected with the CCS line body conveying device. The water temperature, water pressure and flow real-time monitoring and alarming functions are achieved, and laser output is automatically cut off when cooling is abnormal. The modular chemical station can support flexible switching between single-machine operation of a sample line and line connection operation of a mass production line by increasing, decreasing and adjusting the welding process, a special line does not need to be built for a single product, the requirement for collinear production of multiple products is met, and the production line modification cost is greatly reduced.

The application relates to the technical field of energy station building monitoring, in particular to an energy station building equipment fault monitoring method and system, which comprises the following steps: obtaining operation monitoring data of a screw water chiller in an energy station building, setting a slide valve hot range power-on event and a slide valve cold range power-on event according to the operation monitoring data based on a slide valve stable condition; generating a hot range power-on stroke rate according to the slide valve hot range power-on event and a cold range power-on stroke rate according to the slide valve cold range power-on event; counting an abnormal stroke rate number of the hot range power-on stroke rate being less than or equal to the cold range power-on stroke rate; judging whether the abnormal stroke rate number is greater than or equal to an abnormal number threshold value; and if the judgment is yes, generating a slide valve fault alarm. The application can solve the problems of affecting production and long time consumption caused by fault monitoring after the compressor is stopped and disassembled in the prior art.

The invention provides an intelligent scheduling method, system and device based on a shunt electric power cold station and a medium, and belongs to the technical field of electric power cold stations. The cloud platform constructs a hierarchical reinforcement learning scheduling framework and generates a global scheduling target; according to the global scheduling target, a combined operation strategy of the water chilling unit frequency conversion rate, the cooling tower fan rotating speed and the valve opening degree is determined, and branch cooling capacity distribution control is achieved; establishing a mapping matrix of the power load and the cooling capacity demand, and keeping the temperature fluctuation of the low-load loop not to exceed a preset temperature threshold value; and embedding the requirements that start and stop do not exceed two times per day and the equipment load rate is maintained in a preset interval into the current scheduling strategy. According to the method, intelligent and efficient dispatching of the shunt electric power cold stations is achieved, the energy consumption cost and carbon emission are reduced while the cooling capacity distribution accuracy is improved, and the cooling capacity distribution accuracy, the operation stability and the economical efficiency are improved, and the service life of equipment is prolonged.

The application discloses an ammonia dual-fuel ship air conditioning refrigeration system and method and a ship, and relates to the field of ship air conditioning refrigeration systems. The system comprises an air conditioning cold water unit system, a liquid ammonia cold energy recovery heat exchanger system, an air conditioning refrigerant water expansion tank and an air conditioner. The air conditioning cold water unit system, the liquid ammonia cold energy recovery heat exchanger system, the air conditioning refrigerant water expansion tank and the air conditioner are connected through circulating pipelines and corresponding valves. The air conditioning cold water unit system and the liquid ammonia cold energy recovery heat exchanger system are arranged in an ammonia fuel supply equipment room, and the air conditioning refrigerant water expansion tank and the air conditioner are arranged inside a driver's cabin. An air conditioning refrigerant water circulating pump is arranged on the circulating pipeline in the ammonia fuel supply equipment room. The application recovers and utilizes the cold energy of low-temperature stored ammonia fuel, solves the problem that a ship is difficult to maintain and replace refrigerant in the European Union region, saves electric energy of a dual-fuel ship, and plays a role in energy saving and emission reduction.

The utility model provides a heat dissipation assembly and a water chilling unit, the heat dissipation assembly is suitable for the air-cooled water chilling unit, the heat dissipation assembly comprises a flow guide part used for forming a heat dissipation air channel, the flow guide part is arranged around an electric control heat dissipation part of the air-cooled water chilling unit, the electric control heat dissipation part is in heat conduction connection with an electric control heating element of the air-cooled water chilling unit, and the electric control heating element is in heat conduction connection with the flow guide part. The heat dissipation air channel comprises an air inlet and an air outlet, the air outlet communicates with a heat exchange air channel of a heat exchanger of the air-cooled chiller unit, and heat dissipation airflow flowing from the air inlet to the air outlet flows through the electric control heat dissipation piece. In the operation process of the water chilling unit applying the heat dissipation assembly, heat in the electric control heat dissipation piece can be taken away by heat dissipation airflow in time, and then the purpose of conducting heat dissipation on the electric control heating element is achieved; due to the fact that the heat dissipation assembly is not provided with an independent heat dissipation fan, heat dissipation of the electric control heating element is achieved, the cost is reduced, and the influence of the additionally-arranged heat dissipation fan on noise of the whole water chilling unit can be effectively avoided.

This invention discloses a cultivation and monitoring device for low-temperature cold-resistant growth of rice, relating to the field of rice cultivation technology. The invention includes a three-layer frame for mounting the equipment; a supplementary lighting system is installed on the upper layer of the frame; a rice cultivation trough is installed on the middle layer; and a water tank and a chiller are installed on the lower layer. The water tank and the chiller's inlet are connected via a first pipe. The rice cultivation trough is internally divided into a cold water inlet chamber, a cold water cultivation chamber, and a cold water return chamber. Water level and flow are controlled by inlet and outlet weirs. The device is also equipped with adjustable weirs to flexibly adjust the water level to meet the needs of different rice growth stages. Simultaneously, a video recording device and a temperature recording device are installed to record the entire rice growth process and monitor water temperature in real time, providing researchers with accurate experimental data. Furthermore, the device includes a room-temperature cultivation chamber as a control, which helps evaluate the low-temperature growth ability of genetically modified or hybridized rice seeds.

The invention discloses a water-cooling heat dissipation device for cooling environment-friendly materials, and belongs to the field of water-cooling heat dissipation devices.The water-cooling heat dissipation device comprises a mixing barrel and a water tank, a cooling-water machine is installed on the water tank, a stirring rod and a plurality of spiral coils are arranged in the mixing barrel and the water tank respectively, and the top ends and the bottom ends of the spiral coils are communicated with a water conveying pipe and a water return pipe respectively; the other end of the water conveying pipe is communicated and connected with the water inlet end of the cooling-water machine, a water outlet main pipe is arranged at the water outlet end of the cooling-water machine, a plurality of water outlet branch pipes are arranged on the water outlet main pipe in a split-flow mode, and the water outlet branch pipes and the water return pipes are communicated and connected with an elastic water pipe through flange plates respectively; each jacket is provided with a cold water bag and an elastic connecting sleeve, the elastic connecting sleeves among the jackets are detachably connected, and the cold water bags in the jackets are respectively communicated and connected with the elastic water pipe.

The invention discloses a water chilling unit multi-component coupling modeling and dynamic simulation method based on Simscape, and belongs to the technical field of heating ventilation air conditioners, multi-physical field simulation models of a compressor, a condenser, an evaporator and a thermostatic expansion valve are constructed in a modular mode, and four main stages are achieved in a system level. State evolution and thermal conversion of compression, condensation, throttling and evaporation; the modeling process is combined with thermodynamics, fluid mechanics and heat transfer theory principles, and adjustable modeling is carried out on internal thermophysical property equations, structural parameters and flow boundaries of all assemblies by utilizing a Matlab / Simscape language, so that a complete closed-loop dynamic simulation system is formed. By adopting the Simscape-based multi-component coupling modeling and dynamic simulation method for the water chilling unit, the integration of component-level modeling, system-level coupling, adjustable parameter setting and simulation checking can be realized, and the accuracy, universality and engineering adaptability of the model are improved.

The utility model discloses a heat recovery system of a water chilling unit, which relates to the technical field of heat recovery, and comprises a first heat exchange mechanism, the first heat exchange mechanism comprises a cooling medium shunting bin, the bottom of the cooling medium shunting bin is fixedly connected with a condensation pipe, and the bottom of the condensation pipe is provided with a cooling medium collecting bin. And the electric energy conversion mechanism comprises a mounting frame, the top of the mounting frame is fixedly connected with a conversion bin and a heat energy recovery mechanism, the heat energy recovery mechanism comprises a water storage tank and a heat exchange assembly, and a third communication pipe is arranged on one side of the water storage tank. Through the arrangement of the electric energy conversion mechanism, the cooling medium with a low boiling point is in direct contact with the condensation pipe in the water chilling unit to absorb heat in the condensation pipe in the water chilling unit, so that the cooling medium is evaporated into a gaseous state, and the gaseous cooling medium is utilized to push the steam turbine to rotate so as to drive the rotating shaft of the generator to rotate to generate electricity; and primary conversion and recovery of heat energy are realized.