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516 results about "Dewpoint temperature" patented technology

Electrical cabinet condensation defense method and system based on environmental parameter monitoring

The invention discloses an electrical cabinet condensation defense method and system based on environmental parameter monitoring. The method comprises the following steps: acquiring temperature and humidity information of multiple points in an electrical cabinet and outside the cabinet in real time; calculating a dew point temperature and a condensation risk index in the cabinet; predicting the lowest temperature and humidity change rate in the cabinet in the next time period in the control period; based on the minimum temperature and humidity change rate prediction value in the cabinet and the current condensation risk index, whether the electrical cabinet meets the condensation risk trend criterion is judged, if yes, the electrical cabinet enters a condensation risk suppression linkage control mode, and if not, the electrical cabinet enters a condensation risk defense self-adaptive mode; and in the condensation risk suppression linkage control process, when the current condensation risk index of the electrical cabinet is lower than a condensation risk index threshold value, entering a condensation risk defense self-adaptive mode, and otherwise, entering a next control period. Data acquisition is comprehensive and accurate, the dew point temperature can be accurately calculated, the control strategy is intelligent and flexible, equipment can operate according to needs, condensation is effectively prevented, and the energy-saving effect is remarkable.
Owner:WUXI POWER SUPPLY BRANCH OF STATE GRID JIANGSU ELECTRIC POWER CO LTD +1

Anti-condensation temperature and humidity regulation and control system and method for remote deep learning prediction aided decision-making

The invention provides an anti-condensation temperature and humidity regulation and control system and method for remote deep learning prediction aided decision making, and the method is characterized in that a field controller is connected with a temperature and humidity collection device, obtains the environment temperature and humidity, calculates the dew point temperature, obtains the surface temperature of a protected part, and starts and stops a heating and / or dehumidification device by comparing the difference between the two values with a preset threshold value; the temperature and humidity acquisition device acquires field environment temperature and humidity data for the field controller to calculate the dew point temperature, and the temperature and humidity acquisition device is also used for acquiring the surface temperature of the protected part; the heating device is used for raising environment temperature; the dehumidification device is used for reducing the environment humidity; the communication module is used for data transmission between the field controller and the remote prediction terminal, sending field data and receiving prediction information; the remote prediction terminal obtains field data through the communication module; an anti-condensation system structure combining local autonomous control and remote prediction assistance is established, and redundancy fault-tolerant capability is achieved; even if the remote prediction function fails, the field control can still operate independently and reliably.
Owner:YICHANG THREE GORGES NAVIGATION ENG TECH CO LTD +1

Automobile automatic defogging control method and system, automobile and storage medium

The invention relates to the technical field of automobile demisting, in particular to an automobile automatic demisting control method and system, an automobile and a storage medium. The method comprises the steps that the glass temperature, the in-automobile temperature, the dew point temperature and the in-automobile humidity are obtained; looking up a first table according to the difference between the glass temperature and the dew point temperature to obtain a first fogging probability; looking up a second table according to the difference between the in-vehicle temperature and the glass temperature to obtain a second fogging probability; looking up a third table according to the in-vehicle humidity to obtain a third fogging probability; the fogging probability is calculated according to the first fogging probability, the second fogging probability and the third fogging probability; and determining a fogging level according to the fogging probability, and carrying out defogging based on a defogging strategy corresponding to the fogging level. The problem that in the prior art, fogging cannot be prevented in advance due to inaccurate judgment of the fogging probability is solved.
Owner:DEEPAL AUTOMOBILE TECH CO LTD

Direct expansion cryogenic pre-dehumidification and heat pump regeneration combined low-dew-point double-rotating-wheel dehumidification system, control method and terminal

According to the direct-expansion cryogenic pre-dehumidification and heat pump regeneration combined low-dew-point double-rotating-wheel dehumidification system, the control method and the terminal, accurate regulation and control of all devices in the rotating-wheel dehumidification system are achieved according to data collected by the sensor module in real time, and therefore the stability of the air supply dew-point temperature is ensured. By adopting the direct expansion cryogenic technology, the dehumidification burden of the rotating wheel is effectively relieved, and the regeneration temperature is reduced, so that the energy consumption in the regeneration process is remarkably reduced. The regeneration heat pump condenser is installed at the inlet of the rotating wheel, part of regeneration heat can be borne, and regeneration energy consumption is further reduced. A regeneration heat pump evaporator is further installed at an exhaust outlet of the rotating wheel, heat in regeneration exhaust can be recycled, and the purpose of saving energy is achieved. According to the rotating wheel dehumidification system, dual optimization of dehumidification performance and energy consumption performance is achieved, the dehumidification efficiency is remarkably improved, and the energy consumption of the system is reduced.
Owner:SHANGHAI CARBON BALANCE ENERGY TECH CO LTD

Humidity control method and system for switch cabinet

The invention relates to the field of automatic control, in particular to a humidity control method and system for a switch cabinet, and the method comprises the steps: obtaining the temperature values and humidity values of a plurality of time points in the switch cabinet, and calculating the dew point temperature in the switch cabinet based on the temperature value and humidity value of a high-temperature region at the current moment. In consideration of unbalanced temperature distribution in the switch cabinet, whether condensate water is generated in the low-temperature area is mainly considered, and the temperature of the low-temperature area is mainly influenced by the heat transfer effect of the high-temperature area and the environment where the low-temperature area is located. Therefore, the temperature range of the low-temperature region is estimated on the basis of a pre-constructed temperature distribution model, the temperature value of the high-temperature region, and the ambient temperature. And determining whether the temperature of the low-temperature area is lower than the dew point temperature or not through trend analysis and dew point temperature comparison. And if the possibility exists, the water vapor condensation risk is speculated to exist. When water vapor condensation risks exist in the low-temperature area of the switch cabinet, the dehumidification module is controlled to dehumidify the interior of the switch cabinet, and water vapor condensation is avoided.
Owner:CHENGDU NCAUTOM AUTOMATION EQUIP CO LTD

Thermal management method, system and terminal for intelligent vehicle-mounted equipment test bench

The invention relates to the technical field of vehicles, and discloses an intelligent vehicle-mounted equipment test bench thermal management method and system, electronic equipment, a storage medium and a terminal.The method comprises the steps that a to-be-tested device is responded, a to-be-cooled area of the to-be-tested device is identified, and temperature data of the to-be-cooled area is obtained in real time; the temperature data is responded and compared with a preset temperature threshold value, whether the cooling process needs to be started or not is determined, parameters of the cooling process are dynamically adjusted in response to the temperature change trend of the to-be-cooled area, and the parameters comprise the flow of cooling liquid, the temperature and the power of refrigeration equipment; in response to ambient temperature and humidity data, a dew point temperature is calculated, and the parameters during the cooling process are adjusted based on the dew point temperature. During development and testing, the heat dissipation performance of the vehicle-mounted equipment test bench can be improved, and the environment condition of a working area is improved.
Owner:CHINA FAW CO LTD +1

Anti-condensation control method and device, medium, electronic equipment and air conditioner

The invention provides an anti-condensation control method and device, a medium, electronic equipment and an air conditioner, relates to the technical field, and solves the technical problems that the surface of a liquid cooling heat dissipation plate is prone to condensation, a power device is threatened, and potential electrical safety hazards exist. The method comprises the following steps: acquiring environmental parameters; the dew point temperature TL0 is calculated based on the obtained environment parameters; the real-time temperature Ts of the liquid cooling heat dissipation module is obtained; the real-time temperature Ts is compared with the dew point temperature TL0; and on the basis of the comparison result, starting and stopping of the anti-condensation control unit are controlled, so that the real-time temperature Ts of the liquid cooling heat dissipation module is higher than the dew point temperature TL0, and the liquid cooling heat dissipation module is prevented from generating condensation. The anti-condensation control unit is arranged in the liquid cooling heat dissipation module, and the heating value of the anti-condensation control unit is controlled, so that the temperature of the liquid cooling heat dissipation module is increased, the temperature of the liquid cooling heat dissipation module is higher than the dew point temperature, and the purpose of preventing condensate water from being generated on the surface of the liquid cooling heat dissipation module is achieved.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Dual variable water temperature control method for air conditioner water system

The invention relates to the field of air conditioner water system temperature control, in particular to an air conditioner water system double variable water temperature control method. The real-time room temperature and the room temperature set value are detected in real time, the required duty ratio is obtained according to the time of the refrigeration or heating requirement corresponding to the mode in the room, and the set water temperature of the system heat pump main machine is adjusted according to the first temperature difference and the required duty ratio. A radiation water inlet temperature correction value is set according to the required duty ratio range, the first temperature difference and the range of the difference between the real-time temperature of a current room and the real-time temperature of the room before the collection period, and the set water temperature change and the radiation water inlet temperature change of the air conditioner water system are adjusted through the indoor temperature change; the problems that in the prior art, if the set temperature of the water temperature of a fixed value is not reasonable, the temperature control effect is not ideal easily, and when the water temperature of supplied water of a current radiant panel is controlled to be close to the dew point temperature conventionally, energy consumption is easily increased are solved.
Owner:苏州颐居环境科技有限公司

Tunnel dew formation and icing rapid monitoring method and system based on time-space phase change cooperation mechanism

PendingCN121072375AGeometric CADDesign optimisation/simulationHEAT/MOISTURE EXCHANGEPhysical model
The invention discloses a tunnel dew formation and icing rapid monitoring method and system based on a space-time phase change cooperation mechanism, and relates to the technical field of tunnel engineering safety monitoring and freeze injury prevention and control. Establishing a tunnel geometric model and a heat-humidity-turbulence multi-field coupling physical model; synchronously acquiring heat and humidity physical property parameters and outdoor hourly meteorological parameters; taking the outdoor hourly meteorological parameters as Dirichlet boundary conditions and initial conditions of a heat-humidity-turbulence multi-field coupling physical model; determining a heat and humidity exchange coupling process of the tunnel wall surface and the internal environment, and defining heat and humidity transfer parameters under an unsteady state boundary; performing discretization processing on the tunnel geometric model by adopting a grid division strategy; by setting a dew point temperature threshold value and an icing temperature threshold value, a condensation risk area is judged, dynamic changes of the thickness of an ice layer are quantified, and monitoring of tunnel condensation and icing is achieved. The method can effectively reflect the distribution rule of multiple physical fields on the surface and in the tunnel in any time, accurately judge the risk area and quantify the thickness of the ice layer.
Owner:DALIAN UNIV OF TECH

Grain storage ventilation decision-making method based on GNN and Cross-Attention

The invention relates to the technical field of grain depot ventilation prediction, and discloses a grain storage ventilation decision-making method based on GNN and Cross-Attention, and the method comprises the steps: collecting internal temperature and humidity data of a grain depot, external temperature and humidity data of the grain depot, weather data and grain pile temperature data in real time; and the collected grain pile temperature data and weather data are preprocessed respectively, the grain balance relative humidity, the atmosphere dew point temperature and the grain dew point temperature are calculated and serve as input of a pre-trained ventilation decision model, and a classification result of ventilation decisions is obtained. Based on the temperature and humidity information of the air in the grain depot, the ventilation of the grain depot is comprehensively decided by combining the external temperature and humidity of the grain depot, the dew point data, the weather data and other information, the temperature characteristics of the grain depot are more accurately extracted, and the ventilation decision of the grain depot is more reliable.
Owner:ZHEJIANG UNIV

Online monitoring method and system for condensation risk of electrical cabinet

The invention relates to the technical field of electrical equipment state monitoring and fault early warning, and particularly discloses an electrical cabinet condensation risk online monitoring method and system, and the method comprises the steps: synchronously collecting the physical parameters of the same microscopic space point in an electrical cabinet; calculating the classical dew point temperature by adopting a Magnus formula; performing quantification processing on the air pressure micro-fluctuation data in the time window, and calculating information entropy of micro-air pressure fluctuation; the wall surface temperature gradient and the air flowing state are fused, and the equivalent dew point temperature is calculated; real-time safety margin is calculated, and the instantaneous change rate of the safety margin is solved; constructing a condensation risk trend index; comparing with a preset threshold value, generating an early warning signal and a risk diagnosis label, and completing condensation risk monitoring; the system comprises a multi-physical field sensing unit, an embedded processing unit, a self-adaptive control unit, a man-machine interaction unit and a communication unit which are integrated in the same shell.
Owner:INNER MONGOLIA ELECTRIC POWER (GRP) CO LTD WUHAI POWER SUPPLY BRANCH

Non-electrical variable adjusting method for temperature and humidity of anoectochilus formosanus growth environment

The invention relates to the technical field of facility agriculture environment control, and discloses an anoectochilus formosanus growth environment temperature and humidity non-electrical variable adjustment method, which comprises the following steps: acquiring dry-bulb temperature and relative humidity, calculating real-time dew point temperature, and generating a dew point approximation index; when the dry-bulb temperature is higher than a set value to trigger cooling, monitoring the relationship between the index and a security defense threshold value; when the index is lower than a threshold value, the humidification starting permission is locked, and ventilation is driven; when the index is higher than a threshold value, locking is relieved, and humidification output is limited according to the dry-bulb temperature drop rate, so that the dew point rise rate is lower than the dry-bulb temperature drop rate. By establishing the dew point defense boundary and asynchronous decoupling control logic, the problem of transient condensation caused by response time constant mismatch in a multivariable coupling system is solved; the risk of microscopic condensation of leaf surfaces is eliminated, and high-precision lossless regulation and control of the anoectochilus formosanus growth environment are realized.
Owner:ZHANGZHOU INST OF TECH

Mold cooling water supply, conveying and quantitative control method and system

The invention discloses a mold cooling water supply, conveying and quantitative control method and system. The method comprises the following steps: acquiring an initial monitoring data set; according to the initial monitoring data set, if the partition temperature exceeds a preset threshold value, the flow of the corresponding cooling channel is increased, if the partition temperature is lower than the preset threshold value, the flow is reduced, and an optimized flow distribution scheme is generated; a dynamic adjusting module is adopted to conduct temperature parameter calibration on the optimized flow distribution scheme, if the regional temperature deviation is detected, the cooling medium supply amount is corrected, and a dynamic balance control instruction is generated; humidity and dew point temperature data are obtained from an environment monitoring system, if the difference value between the humidity and the dew point temperature is smaller than a safety threshold value, a condensation prevention mechanism is triggered, and a cooling medium temperature upper limit parameter is adjusted; and executing partition cooling control according to the final regulation and control parameters, and feeding back the operation data to a database for updating a preset threshold value and optimizing algorithm parameters. Intelligent and accurate control over the mold temperature is achieved, and the product quality and the production efficiency are improved.
Owner:ZHUZHOU SIXING MACHINERY

Gas turbine engines and methods of controlling formation of condensates

A fuel conditioning system includes a heater for selectively adjusting an operating temperature of the fuel and a controller communicatively coupled to the heater. The controller configured to determine a dew point temperature of the fuel and maintain the operating temperature of the fuel at least at the determined dew point temperature of the fuel.
Owner:GE INFRASTRUCTURE TECH LLC

Air conditioner dehumidification power control method based on constant dew point temperature and air conditioner

The invention provides an air conditioner dehumidification power control method based on a constant dew point temperature and an air conditioner, and relates to the field of air conditioners, the air conditioner dehumidification power control method comprises the steps that a first dew point temperature difference between a first dew point temperature of a lithium battery workshop and a target dew point temperature is determined, and a standard regeneration temperature of a rotary dehumidifier is adjusted based on the first dew point temperature difference; when the return air humidity of the air conditioner is larger than or equal to the preset humidity threshold value, the air conditioner is controlled to be switched to a humidity closed-loop control mode, and the regeneration temperature of the rotary dehumidifier is reduced to be lower than the standard regeneration temperature; and the second dew point temperature of the lithium battery workshop is determined in the humidity closed-loop control mode, and the dehumidification power of the air conditioner is adjusted based on the second dew point temperature difference between the second dew point temperature and the target dew point temperature. And in the humidity closed-loop control mode, the dehumidification power of the air conditioner is dynamically adjusted according to the re-determined second dew-point temperature difference, and energy waste caused by excessive dehumidification is avoided on the premise that the dew-point temperature of the lithium battery workshop is kept stable.
Owner:GUANGDONG HEAD-POWER AIR-CONDITIONING CO LTD

Dehumidification method of thermal management system, electronic equipment and storage medium

The invention provides a dehumidification method of a heat management system, electronic equipment and a storage medium, and the method comprises the steps: obtaining the dew point temperature in a container, monitoring the water outlet temperature of a liquid cooling unit, and dehumidifying a battery pack when the dew point temperature is greater than or equal to the water outlet temperature. As the outlet water temperature is the lowest temperature of the liquid cooling plate of the liquid cooling unit, the accuracy and effectiveness of the judgment result of whether the dehumidification function needs to be started or not can be improved according to the lowest temperature, whether the condensation phenomenon can be generated or not can be accurately judged according to the dew point temperature, and when the dew point temperature is larger than or equal to the outlet water temperature, the battery pack is dehumidified, and the dehumidification efficiency is improved. Therefore, accurate dehumidification of the thermal management system is achieved, dehumidification energy consumption is reduced, the anti-condensation effect of the thermal management system is improved, the performance of a battery in the thermal management system is improved, and the service life of the battery in the thermal management system is prolonged.
Owner:EVE ENERGY CO LTD

Dew point corrosion high-risk area prediction method suitable for atmospheric and vacuum distillation unit

The invention relates to the technical field of petrochemical corrosion failure and protection, and discloses a dew point corrosion high-risk area prediction method suitable for an atmospheric and vacuum distillation unit, and the method comprises the steps: firstly obtaining the technological characteristics of a to-be-tested device and the physical property data of processing raw oil; constructing a process calculation model of the to-be-tested device according to the process characteristics and the physical property data; solving logistics parameters in the device to be tested by using the process calculation model, and analyzing logistics distribution characteristics in the device; the material flow distribution characteristics comprise phase distribution characteristics, temperature distribution characteristics, component distribution characteristics and concentration distribution characteristics; calculating the dew point temperature in the device to be measured; and finally, determining a high-risk area in which low-temperature dew point corrosion occurs in the device to be detected in combination with the material flow distribution characteristics and the dew point temperature. According to the method, quick and accurate prediction of the corrosive components in the dew point corrosion high-risk area in the atmospheric and vacuum distillation unit is realized.
Owner:HEFEI GENERAL MACHINERY RES INST +2

Freezer remote monitoring and fault prediction system

The invention relates to the technical field of refrigeration equipment state monitoring and data analysis, and discloses a freezer remote monitoring and fault prediction system, which comprises the steps of intercepting operation data of a freezer in a door closing silence period, calculating an environment dew point temperature sequence and extracting a unit temperature difference load fluctuation ratio sequence of a refrigeration system; based on the time change rate of the environment dew point temperature sequence and the unit temperature difference load fluctuation ratio sequence, an instantaneous cross bispectrum coupling potential energy sequence representing the nonlinear modulation relation of the time change rate and the unit temperature difference load fluctuation ratio sequence is constructed; then, a two-dimensional phase space hysteresis track is constructed with the environment dew point temperature sequence as the horizontal axis and the instantaneous cross bispectrum coupling potential energy sequence as the longitudinal axis, and the cross bispectrum hysteresis entropy of the dew point driving type load volatility is calculated based on the probability density distribution of the track and the directed circulation area; and finally, judging an operation state and outputting a fault prediction result by verifying whether the entropy value is within a historical reference interval.
Owner:QINGDAO ABLE WELL ELECTRICAL APPLIANCE

A safety operation method for a piston air compressor

This application belongs to the technical field of air compressor safety, and particularly relates to a safety operation method for a piston air compressor. A safety operation method for a piston air compressor includes the following steps: S1, a flexible baffle is provided on an air-cooled plate cooler connected to the piston air compressor; S2, temperature data of each cooling unit at the current moment is obtained, and at the same time, the temperature change trend and the opening area change trend of the air outlet end of each cooling unit are obtained; S3, according to the pressure dew point temperature of the air outlet end of each cooling unit at the current moment, the opening area of each cooling unit at the current moment is adjusted to change the coverage degree of the flexible baffle on the air-cooled flow channels of each cooling unit at the next moment, so that the temperature of the air outlet end of each cooling unit is always above the corresponding pressure dew point temperature. This application can尽量避免活塞式空压机在运行的过程中发生冰堵或油乳化,保证活塞式空压机的安全运行。 It should be noted that there is an unclear part in the original Chinese text "尽量避免活塞式空压机在运行的过程中发生冰堵或油乳化,保证活塞式空压机的安全运行。" which may need to be further clarified for a more accurate translation. The above translation is based on the best understanding of the current text.
Owner:HEFEI GENERAL MACHINERY RES INST +1

Air conditioner and control method thereof

The invention relates to the technical field of air conditioning, in particular to an air conditioner and a control method thereof. The control method comprises the steps that in response to a triggering condition meeting a glass cleaning mode, the dew point temperature of condensation generated on the outer surface of glass of a target window is calculated; the air conditioner is controlled to start a glass cleaning mode, air is discharged according to the first temperature, and the first temperature is smaller than the dew point temperature. The basic air supply function of the air conditioner is used for automatically cleaning the outer surface of the glass, the function that the air conditioner automatically cleans the outer surface of the glass is achieved, and the beneficial effects that cleaning is timely, the cleaning coverage range is large, and manual intervention is completely not needed can be achieved; the problems that in the prior art, manual glass cleaning is time-consuming and labor-consuming, cleaning is not thorough, and potential safety hazards are large are solved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2

Method and device for controlling radiation air conditioning system and radiation air conditioning system

The invention relates to the technical field of air conditioner control, and discloses a method for controlling a radiation air conditioner system, which comprises the following steps: obtaining dew point temperature of each room in a house where the radiation air conditioner system is located; comparing the dew point temperatures of all the rooms to determine a reference room with the lowest dew point temperature; determining a target control strategy of the radiation air conditioning system according to the dew point temperature of the reference room; and controlling the radiation air-conditioning system to execute the target control strategy. According to the scheme, the time for reaching the set temperature can be effectively shortened, the rapid cooling requirement of each room is met, the comfort degree of all the rooms in the refrigeration mode is ensured, and efficient and accurate water supply temperature control is achieved. The invention further discloses a device for controlling the radiation air conditioning system and the radiation air conditioning system.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1

Heat exchange equipment and control method based on heat exchange equipment

The invention provides heat exchange equipment and a control method based on the heat exchange equipment, the heat exchange equipment comprises a shell, the shell is provided with a first end and a second end which deviate from each other, the first end faces a first space and is provided with a fresh air port and an exhaust port, and the second end faces a second space and is provided with an air supply port and an air return port; the detection device is configured to obtain the air inlet temperature of the fresh air opening; the control device is configured to calculate the dew point temperature of the second space in the state that the air inlet temperature is higher than the preset temperature; the detection device is further configured to obtain the air supply temperature of the air supply outlet, and the control device is further configured to compare the air supply temperature with the dew point temperature.
Owner:PANASONIC ECOLOGY SYSTEMS GUANGDONG CO LTD

Method and system for preventing condensation of ultrasonic liquid level meter

A method and system for preventing condensation of an ultrasonic liquid level meter. The method comprises: connecting a heat tracing unit to an ultrasonic liquid level meter, and deploying a temperature monitoring module; on the basis of a measurement result of the monitoring module, calculating the dew point of the surface of a probe of the ultrasonic liquid level meter; and comparing the dew point with the surface temperature of the liquid level meter measured by the monitoring module and, on the basis of a heating control execution module, performing dynamic temperature control. By means of deploying the heating unit and the temperature monitoring module, the present invention measures the surface temperature of the probe in real time and, on the basis of the calculated dew point, dynamically adjusts heating power, such that the surface temperature of the probe is higher than the dew point temperature, thus effectively avoiding condensation and solving the effect of environment temperature and humidity on the precision of liquid level measurement.
Owner:HUANENG YUSHE POWER GENERATION CO LTD

Defrosting method and device of heat pump system and heat pump system

The invention relates to the technical field of heat pump control, and discloses a defrosting method and device of a heat pump system and the heat pump system.The defrosting method comprises the steps that the temperature and humidity of gaps of a fin type heat exchanger are monitored in real time; and when the temperature is lower than or equal to the threshold value of the dynamic dew point temperature plus the safety margin and the humidity is higher than or equal to the threshold value, it is judged that the frosting prevention condition is met, the gap temperature is increased by adjusting the refrigerant bypass valve, the gap humidity is reduced by adjusting the airflow adjusting valve, and therefore frosting is actively prevented. And if the frost layer appears, short-time refrigeration interruption or low-power heating is started for defrosting according to the thickness of the frost layer or a pressure difference signal. And the formed ice layer is forcibly removed by switching the flow direction of the refrigerant and heating. By means of three-level linkage control, accurate defrosting in the whole process from prevention to removal is achieved, energy waste is effectively avoided, the defrosting efficiency and operation stability of the system are improved, and the user experience is improved.
Owner:GUANGDONG PHNIX ECO ENERGY SOLUTION

Amphibious aircraft airborne equipment surface condensation prediction method

The invention discloses a method for predicting surface condensation of airborne equipment of an amphibious aircraft. The method comprises the following steps: (1) calculating absolute humidity in electrical equipment; (2) calculating saturated vapor pressure in the electrical equipment; (3) calculating the highest humidity in the electrical equipment; (4) calculating the relative humidity in the electrical equipment; and (5) calculating the dew point temperature. The method for predicting the condensation on the surface of the airborne equipment of the amphibious aircraft can be used for evaluating the influence of the corrosion environment on the condensation on the surface of the airborne equipment of the aircraft.
Owner:CHINA SPECIAL TYPE FLIER RES INST

Instrument air on-line water removal system

The invention discloses an instrument air online water removal system which comprises an air compressor, and an outlet of the air compressor is sequentially communicated with a buffer tank, a cold dryer, an adsorption device and an air storage tank through air pipelines. The adsorption device comprises a first adsorption tower and a second adsorption tower which are connected in parallel. The system effectively removes moisture in compressed air, reduces the dew-point temperature and ensures that the dew-point temperature of the compressed air is less than or equal to-40 DEG C by utilizing the principle of freeze dehydration and adsorption dehydration, so that the dryness of air used by pneumatic equipment is improved, and the conditions of corrosion, blockage and freezing in pipelines, valves or equipment caused by the fact that water vapor is condensed into water at low temperature are avoided; the service life of equipment is prolonged, the whole system is interlocked through the PLC, and automatic operation is achieved.
Owner:JINCHUAN GROUP CO LTD +1

Active anti-condensation control method, system and equipment for switch cabinet and medium

The invention relates to the technical field of safety operation and maintenance of power equipment, in particular to an active anti-condensation control method, system and equipment for a switch cabinet and a medium, which are applied to an active anti-condensation control system for the switch cabinet and used for preprocessing operation environment data of the switch cabinet acquired by a sensing layer based on a data acquisition unit; cabinet body surface temperature fusion and dew point temperature calculation are carried out based on the risk research and judgment unit, a dynamic condensation risk index and a global risk index are obtained, and a risk level is judged through the obtained dynamic condensation risk index and a preset threshold value; and according to the risk level and the global risk index, based on a cooperative control unit and according to a preset multi-mode control strategy, generating a control instruction to perform active condensation prevention of the switch cabinet. Therefore, the early condensation trend is pre-judged, and faults such as insulation reduction and metal corrosion caused by condensation formation are effectively avoided.
Owner:STATE GRID HENAN ELECTRIC POWER COMPANY ANYANG POWER SUPPLY

Equipment for recovering high-purity phosphorus steam

The utility model discloses equipment for recovering high-purity phosphorus steam, which relates to the field of phosphorus steam recovery and comprises a first spray tower and a second spray tower, a phosphorus collecting tank is fixedly arranged at the bottom end of the first spray tower, and the second spray tower is fixedly arranged at the top end of the phosphorus collecting tank. The top ends of the first spray tower and the second spray tower are connected through a second phosphorus steam guide pipe, and a gas inlet pipe is fixedly arranged at the outer end of the first spray tower. The cooling water tank is used for pre-cooling phosphorus steam to the temperature close to the dew point temperature, the advantages of good atomization performance and good spraying effect of the spiral spraying head are utilized, and the characteristics that water mist is in full contact with gas countercurrent in the first spraying tower for cooling and is in direct-current constant-speed cooling with the gas in the second spraying tower are utilized; phosphorus steam is dissolved in the phosphorus collecting tank to the maximum extent, the recycling effect is good, and the equipment is simple in structure and small in occupied area.
Owner:贵州开阳磷城磷化工有限公司 +1

Intelligent optimized variable water temperature anti-condensation control method for radiant cooling system

The invention discloses an intelligent optimized variable water temperature anti-condensation control method for a radiant cooling system, and relates to the technical field of radiant cooling system control. According to the intelligently-optimized variable-water-temperature anti-condensation control method for the radiant cooling system, through multi-parameter comprehensive monitoring and an intelligent prediction model, the condensation risk can be predicted in advance and adjusted, the response speed is high, the hysteresis of an existing algorithm is avoided, the condensation phenomenon is effectively prevented, a partition control strategy and a dynamic feedback adjustment mechanism are combined, and the control accuracy is high. System parameters can be accurately adjusted according to different areas and real-time conditions, the control precision is high, it is ensured that the radiation surface temperature is always higher than the dew point temperature, the reliability and comfort of the system are improved, the dehumidification system is cooperated to reduce the condensation risk, meaningless operation of dehumidification equipment is reduced, and the overall energy efficiency of the system is improved; the system has a good energy-saving effect, is suitable for various types of radiant cooling systems, and has wide popularization and application values.
Owner:SHAANXI VIVALDI INDOOR ENVIRONMENT ENGINEERING CO LTD

Vehicle window demisting method and system, vehicle and electronic equipment

The invention provides a vehicle window defogging method and system, a vehicle and electronic device.The method comprises the steps that historical multi-source state parameters and environmental parameters of the vehicle, the first temperature of current vehicle window glass and the first dew point temperature of air in a passenger compartment are obtained; the multi-source state parameters and the environment parameters are input into a model, a first temperature sequence and a humidity sequence of air in a future passenger compartment and a temperature sequence of window glass are obtained, and the model is constructed based on physical simulation and data driving fusion; according to the first temperature sequence and the humidity sequence, a dew point temperature sequence of future passenger compartment air is determined; and according to the first temperature, the second temperature sequence, the first dew point temperature and the change rate of the safe temperature margin, the minimum safe temperature margin and the future safe temperature margin determined by the dew point temperature sequence, the start-stop state and the demisting strength of the demisting function of the air conditioner are determined. Automatic demisting of the car window is achieved through the data-physical fusion temperature and humidity prediction model, and the accuracy and reliability of demisting judgment in the complex environment are improved.
Owner:CHONGQING SELIS PHOENIX INTELLIGENT INNOVATION TECH CO LTD