96 results about "Dew" patented technology

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.

The invention discloses an intelligent temperature and humidity control method applied to a process oven. The method comprises the following steps: analyzing future temperature and humidity predicted values in real time by adopting a dynamic prediction module; and the predicted value is simultaneously input to a dew point risk avoidance module and an MPC optimization module. The current dew point temperature is calculated through the dew point risk avoiding module, dew point risk judgment is conducted in combination with the material surface temperature monitored by the infrared sensor, and when it is detected that the surface temperature is close to a dew point threshold value, an instruction is sent to the gradient air supply control module. And the MPC optimization module performs rolling optimization on the air supply parameters through an objective function based on the predicted value. Therefore, the fuzzy-PID module is helped to dynamically adjust PID parameters, and accurate execution signals are output to a heater and a fan. The gradient air supply control module integrates the dew point risk instruction and the PID control signal, the oven is divided into a plurality of independent areas to execute differential regulation and control finally, the control precision of intelligent regulation of the operation state of the process oven is increased, and energy consumption is remarkably reduced.

The invention relates to the technical field of clean room environment control, and discloses a clean room environment control compensation method and system based on temperature and humidity independent combined control, and the method comprises the steps: collecting the infrared thermal imaging data of a clean room; infrared thermal imaging data of the clean room are processed into surface heat flux distribution through three-dimensional space interpolation reconstruction; detecting the air dew-point temperature and the particulate matter concentration of the clean room, and combining the air dew-point temperature and the particulate matter concentration into a dynamic heat and humidity load vector; determining a target temperature value and a target humidity value of the clean room; a first control instruction for a temperature adjusting device of the clean room is generated, and a second control instruction for a humidity adjusting device of the clean room is generated; controlling the temperature adjusting device to adjust the temperature of the clean room according to the first control instruction, and controlling the humidity adjusting device to adjust the humidity of the clean room according to the second control instruction. Through organic combination of multi-source sensing, dynamic modeling and decoupling control, the precision, adaptability, safety and energy efficiency level of clean room environment control are remarkably improved.

The dehumidification and condensation prevention control method for the liquid cooling energy storage outdoor cabinet is low in cost and capable of effectively avoiding condensation and comprises the steps that S10, according to the current liquid outlet temperature T1 of a liquid cooling unit and the current liquid inlet temperature T2 of the liquid cooling unit, the target dew point temperature T3 is calculated and determined, and according to the current environment temperature and environment humidity in the liquid cooling energy storage outdoor cabinet, the environment dew point temperature T4 is determined; s20, the dehumidifier is controlled to be started and stopped according to the judgment result whether the environment dew-point temperature T4 is larger than or equal to the target dew-point temperature T3 or not; s30, the current liquid outlet temperature T1 and the current liquid inlet temperature T2 of the liquid cooling unit are obtained in the dehumidification process of the dehumidifier, a new target dew point temperature T3'is calculated and determined, and a new environment dew point temperature T4 'is determined according to the current environment temperature and environment humidity in the liquid cooling energy storage outdoor cabinet; and S41, according to the judgment result whether the difference delta T between the new environment dew point temperature T4'and the new target dew point temperature T3 'is smaller than a first preset temperature threshold value X with the value being negative or not, the dehumidifier is controlled to stop dehumidification or continue to keep dehumidification.

The invention provides a heat pump ring fin difference control method and system based on dew-point temperature prediction, and the method comprises the steps: calculating the current dew-point temperature based on the air temperature and the relative humidity, and obtaining a future dew-point temperature sequence through linear weighting prediction based on historical dew-point data; generating a candidate control action set based on the current dew point temperature, the future dew point temperature sequence, the current fin temperature, the current opening degree of the electronic expansion valve, the rotating speed of the fan and the upper limit of the adjustment stride; screening candidate action subsets through an evaluation function; for each candidate action, using a semi-analytical system response simulator to predict a future fin temperature sequence, and calculating a difference sequence between the fin temperature and the dew point temperature based on the future fin temperature sequence; carrying out weighted calculation on a risk score for the difference value sequence of each action, and screening an action set based on a risk score threshold value; and an objective function is constructed, the action with the minimum objective function value is selected as the optimal control action, and the optimal control action is issued to the electronic expansion valve and the fan driver through PWM signals.

The invention relates to a method and system for obtaining dew condensation surfaces in the form of a film, using a surface to be treated, and to a high-performance dew collection system. Described is a method for producing dew condensation surfaces in the form of a film, based on the micrometric and nanometric modification of the original surface by means of a laser beam, said surface being formed as a flat tile with a plurality of parallel longitudinal grooves. The present invention also describes a passive, robust, durable, high-performance dew collection system.

To provide a power storage device capable of suppressing generation of dew condensation water in a case housing a cooler.SOLUTION: The power storage device 100 includes a power storage module 110, a case 140 housing the power storage module 110, a cooler 120 housed in the case 140, and a seal member 130. Cooler 120 includes an upper surface 125 in thermal contact with power storage module 110, and a lower surface 126 spaced apart from case 140. The seal member 130 is disposed at a position that prevents water vapor present in the S2 of the space inside the case 140 from coming into contact with the lower surface 126.SELECTED DRAWING: Figure 3

This invention provides a dehumidification system that can stably control the dew point in a low-dew-point room based on weather conditions. [Solution] The dehumidification system estimates the predicted value of the outside air dew point at a predetermined date and time in the future based on weather forecast data. The dehumidification system also estimates the supply air inlet temperature, which indicates the temperature at the inlet of the supply air area, and the supply air inlet absolute humidity, which indicates the absolute humidity at the inlet of the supply air area, based on the inlet conditions of the supply air area. Then, based on the predicted value of the outside air dew point, the supply air inlet temperature, and the supply air inlet absolute humidity, the dehumidification system calculates the regeneration inlet target temperature, which indicates the target temperature at the inlet of the regeneration area at a predetermined date and time in the future. After calculating the regeneration inlet target temperature, the dehumidification system performs at least one of the following actions to bring the temperature of the regeneration heater closer to the regeneration inlet target temperature: temperature control of the regeneration heater, airflow control of the first fan installed on the inlet side of the supply air area in the first duct, and airflow control of the second fan installed on the outlet side of the regeneration area in the second duct.

The present invention relates to a device for spectroscopic measurements, in particular X-ray diffraction (XRD), tem- perature-resolved second harmonic generation (TR-SHG) or infrared (IR) measurements, which prevents the formation of condensation (dew) or ice (frost) when carrying out spectroscopic measurements in sub-ambient temperature conditions and to a method of spectro- scopic measurements with said device.

Embodiments of the present invention provide a frost point hygrometer apparatus utilizing dry ice and ethanol, or liquid nitrogen, as cryogenic coolant. FPH apparatus in accordance with embodiments of the present invention includes a copper cold finger with a sink immersed in a liquid cryogen to provide cooling power throughout the profile, a polished mirror disk residing at the opposite end of the cold finger with ambient air passing over it, a nichrome heater wrapped around the narrow shaft of the continuous cold finger and mirror piece to provide heat to the mirror, an optical source and detector, including an infrared light-emitting diode and a photodiode, to monitor the mirror's reflectivity as condensate accumulates in the form of dew or frost, a biconvex lens to focus the light reflected from the mirror into the photodiode, and a calibrated thermistor embedded in the mirror to measure the frost point temperature.

An air conditioner may include a heat exchanger temperature sensor, a compressor, at least one memory storing one or more instructions, and at least one processor, wherein the at least one processor is configured to execute the one or more instructions stored in the memory to calculate a dew point of a ceiling interior space where an indoor unit of the air conditioner is provided, obtain a surface temperature of the indoor unit based on a sensor value of the heat exchanger temperature sensor during operation of the air conditioner, and based on the obtained surface temperature of the indoor unit being lower than or equal to the dew point of the ceiling interior space, increase the surface temperature of the indoor unit by reducing a driving frequency of the compressor.

The utility model discloses an air conditioner air supply outlet capable of effectively preventing moisture condensation, which relates to the technical field of air conditioning systems, and is characterized in that a foundation is formed by mounting plates which are symmetrically arranged left and right, and an adjustable air supply outlet is formed by a main adjusting plate, an auxiliary adjusting plate and a backflow plate which are rotationally connected between the mounting plates; meanwhile, an impeller, a front adjusting pipe, a middle adjusting pipe, a rear adjusting pipe and a heat conduction pipe are arranged, premixing and heat balanced distribution of air conditioner cold air and indoor return air are achieved, bimetallic adjusting pieces are automatically bent when the temperature is lower than a preset threshold value, the corresponding adjusting pipes are driven to be opened, premixed gas enters an air mixing cavity, the air supply temperature is effectively increased, and the air supply efficiency is improved. And an external driving system achieves accurate regulation and control over the area of an air supply outlet and the airflow speed through a driving gear and an adjusting gear, and therefore the air supply effect of the air conditioner and the indoor air quality are improved.

The invention discloses a dew collecting device and a dew treating system, and belongs to the technical field of ecological management. The dew collecting device comprises a photovoltaic panel, a water collecting tank and a swinging part, the water collecting tank is arranged on the photovoltaic panel; the swinging part is arranged on the photovoltaic panel; the swinging end of the swinging part and the photovoltaic panel are arranged in a swinging mode, and one side of the swinging end of the swinging part is attached to the surface of the photovoltaic panel; the swing end of the swing part can swing in a reciprocating mode in the direction close to the water collecting tank. The swing end of the swing part can be attached to the surface of the photovoltaic panel and swing in a reciprocating mode in the direction close to the water collection tank, so that dew condensed on the surface of the photovoltaic panel is brushed into the water collection tank, the condensed dew is stably collected and recycled, the recycling efficiency of the dew is improved, and the energy consumption is reduced. Vegetation withering caused by long-time separation of dew from vegetation is avoided, the desertification process of the desert area is inhibited, and the ecological management effect is guaranteed.

The present invention provides an air guide mechanism that allows temperature-controlled air to reach a distant place while reducing the possibility of dew condensation. An air guide mechanism (300) for guiding air that has passed through a louver provided at an air outlet for blowing out temperature-controlled air is provided with: a main body (310) having a guide plate-side guide surface (311) for receiving the air that has passed through the louver; and a plurality of vortex generation parts (320) that extend upward from the guide plate-side guide surface (311) and generate vertical vortices around an axis along the main flow direction of the air.

The basement moisture-proof and dew-proof structure and method relate to the technical field of basement moisture-proof and dew-proof, and the structure comprises an anti-seepage layer, a waterproof layer, and a waterproof backing plate. The anti-seepage layer is arranged on the water-back surface of the wall of the basement. The waterproof layer is arranged on the anti-seepage layer. The waterproof backing plate is connected with the waterproof layer through a connecting piece, and a cavity is formed between the waterproof backing plate and the waterproof layer. The basement moisture-proof and dew-proof structure and method solve the problems of limited waterproof and moisture-proof effect and dew formation in the prior art.

An apparatus and method are provided for optimizing the use of gas hydrate inhibitors by combining real-time "dew point" measurement with quantum-chemical phase-change analysis. A gas hydrate inhibitor reduces gas moisture; by measuring gas humidity and identifying the "dew type" using two chilled-mirror sensors each equipped with an imaging camera, a "dew coefficient" (0–1) is calculated via quantum chemistry analysis of inhibitor solvation. This mesoscale coefficient is used to monitor fluid phase changes. A general relationship for the water / hydrocarbon "dew coefficient" is derived as a function of changes in Gibbs free energy of dew evaporation (inhibitor solvation), gas temperature and pressure, and gas / liquid density. By combining measured "dew point" and "dew type" with quantum chemistry data of phase transformations "dew coefficient", the optimal inhibitor injection rate is determined, minimizing inhibitor consumption while preventing hydrate formation.

An electronic device that can be cooled while suppressing dew condensation on the electronic device with a simple configuration. The electronic device to which a cooling device is detachably attachable, including an electronic component as a heat source, a heat dissipation member having thermal conductivity, and a first heat transfer member configured to thermally connect the electronic component and the heat dissipation member. A heat receiving member of the cooling device and the heat dissipation member are thermally connected in a case where the cooling device is attached to the electronic device.

To promote evaporation of deposited frost and dew even when a cooling storage is left for a long period of time while operation is stopped.SOLUTION: A built-in refrigerator 100 includes a compressor 131, a condenser 132, a fan 137, and a control part 150. Control unit 150 is capable of switching between a standby mode in which the inside of the cooling chamber is not cooled and a cooling mode in which the inside of the cooling chamber is cooled, and regularly drives fan 137 also in the standby mode.SELECTED DRAWING: Figure 10

The invention discloses an anti-condensation intelligent control method based on a dew point, which is characterized in that the dew point is calculated by collecting the environmental temperature and humidity, the start and stop of heating are controlled by a safety margin greater than 2 DEG C, and a dehumidifier can be linked to work cooperatively, so that the problem of condensation is solved from the source. The system is suitable for various scenes such as villas, basements, storage warehouses, underground garages, logistics refrigeration houses and industrial workshops, and is high in universality, accurate in control, energy-saving and efficient.

The application discloses a dew verification method and device, a terminal and a storage medium. The method comprises the following steps: determining a dew condition of a domain controller according to a preset enthalpy psychrometric chart; determining a dew scene of the domain controller based on the dew condition of the domain controller; and implementing dew test on the domain controller in the dew scene to verify whether dew occurs in the domain controller. The application considers the actual application scene of the whole vehicle, verifies the dew condition of the domain controller in different dew scenes, and then judges the dew position and whether the chip is affected by the dew condition of the domain controller, so that the design of the domain controller is optimized.

The present application belongs to the field of hydrological cycle monitoring, and discloses a kind of wetland recovery near-surface water cycle evaluation method based on dew amount monitoring, which comprises the following steps: simultaneously arranging three types of sample plots in the target study area, constructing a continuous evaluation system based on the degradation state as the benchmark and the natural state as the target; dew amount in situ monitoring is carried out for each sample plot, and after eliminating invalid data, the annual dew amount is counted; based on the monitoring data for many years, the dew amount threshold value of degraded wetland and the dew amount benchmark value of natural wetland are determined; the dew recovery index of the wetland to be evaluated is calculated; according to the numerical interval of dew recovery index, combined with annual dew amount, the recovery grade is divided; according to the recovery grade and dew recovery index, the recovery degree of near-surface water cycle is determined. The present application takes dew amount as the core evaluation index, accurately reflects the near-surface water cycle dynamics in real time, overcomes the lag of traditional indicators, can be monitored in a large area for a long time and has low cost, and has good practical value and application prospect.

The invention discloses a large-space laminar flow coupled rime fractal growth method and a control system thereof, and relates to the technical field of artificial environment control and landscape engineering crossing, and the method comprises the following specific steps: step 1, site planning and space construction; 2, equipment is installed, and the partition environment temperature is controlled through an environment control system constructed by a distributed MECU module; and 3, fog drops of 20-50 microns are generated through an atomizer and are directionally conveyed through an air supply system (Re = 200-500). According to the large-space laminar flow coupling rime fractal growth method and the control system thereof, four-dimensional parameter cooperative control (temperature / humidity / wind speed / fog drop particle size) is adopted, and the error value is reduced by 70% compared with that of a traditional method; phase change of fog drops is inhibited through a negative pressure compensation device (dynamic adjustment + / -50Pa) in a supercooled water drop stabilization technology, so that the liquid state holding time is longer than 8h (in a-10 DEG C environment); meanwhile, a partition refrigeration strategy is adopted in the double-layer film structure, the comprehensive energy consumption is smaller than 5.3 kW.h / m < 2 >, and electricity is saved by 52% compared with a traditional ice sculpture.

To provide a dew condensation prevention structure capable of preventing occurrence of dew condensation in a chamber surrounded with walls with a simple configuration.SOLUTION: A dew condensation prevention structure prevents occurrence of dew condensation in a chamber (12) surrounded with walls, and includes a notch recess (130) which is provided in a part of the walls and is open to the side of an indoor space (120), and a dew condensation promotion member (3) which is provided in a notch recess and has thermal conductivity. Dew condensation is generated in the dew condensation promotion member by a temperature difference between two spaces (S1 and S2) sandwiching the dew condensation promotion member.SELECTED DRAWING: Figure 2

A surface treatment apparatus applies a hydrophilic treatment to a bonding surface of a target object bonded to a bonded object using hydrogen bonding, the hydrophilic treatment being applied prior to the bonding. The surface treatment apparatus includes a support base and a spray nozzle. The support base supports a surface of the target object opposite to the bonding surface, the target object being one or more target objects. The spray nozzle causes dew condensation temporarily on the bonding surface by spraying, onto the bonding surface of the target object supported by the support base, humidified air having a water vapor pressure equal to or higher than a saturated water vapor pressure corresponding to a temperature of the bonding surface.

The present disclosure provides an indoor unit capable of suppressing the occurrence of dew condensation on a downstream side of an air outlet passage.SOLUTION: An indoor unit 1 includes a housing 10, a blower 13 having a rotating shaft in a substantially horizontal direction inside the housing 10, and a blowout air passage 30 which is composed of a stabilizer 40 and a rear guider 31 facing the stabilizer 40 and through which air generated by the blower 13 passes. The stabilizer 40 includes a tongue portion 41 protruding toward the blower 13, a flat blowout portion 42 formed continuously with the downstream side of the tongue portion 41 and formed flat, a curved surface portion 43 formed continuously with the downstream side of the flat blowout portion 42 and recessed upward, and a recessed portion 48 formed continuously with a curved surface edge 47 on the downstream side of the curved surface portion 43 and recessed upward. A tangent P2 in contact with the curved surface portion 43 at the curved surface edge 47 is inclined downward with respect to the blowout flat portion 42.SELECTED DRAWING: Figure 3

The present application provides a radiant panel unit capable of suppressing dew condensation on a surface on the side of a refrigeration target space. A radiant panel unit attached to the surface of a door trim or the like for facilitating refrigeration in a vehicle cabin is composed of a radiator having a fluid passage, a surface member arranged so as to face the vehicle cabin, and a heat-insulating space arranged between the radiator and the surface member. Furthermore, in the heat-insulating space, a heat-insulating space layer is provided by a plurality of heat-insulating members arranged in the overlapping direction of the radiator, the heat-insulating space, and the surface member. Thus, the temperature of the surface on the side of the vehicle cabin in the surface member can be suppressed from falling below the dew point, and dew condensation on the surface on the side of the vehicle cabin can be suppressed.

The invention discloses an anti-condensation real-time intelligent regulation and control system and method in a spectrum monitoring process, and relates to the technical field of process industrial process analysis, the system comprises a sample detection module, a temperature control dehumidification module, a high-pressure gas source module, a multi-channel purging module and a PLC control module, and the PLC control module is in signal connection with the other four modules. The sample detection module detects a to-be-detected sample in the flow cell by using an incident spectral signal in a preset wavelength range, and feeds back a transmitted spectral signal; the temperature control dehumidification module maintains the temperature and humidity of the detection area in a preset range; the high-pressure air source module generates dry compressed air with different flow rates and flow speeds, and the multi-channel purging module purges light spots, prone to dew formation, on the two sides of the flow cell. According to the system, through cooperation of multiple modules, the condensation risk can be recognized in real time and precisely regulated, condensation of the outer wall of the flow cell is effectively restrained, optical signal distortion is avoided, the accuracy and stability of a spectrum monitoring result are improved, and the requirements for real-time performance and reliability of online detection in the process industry are met.

The invention relates to the technical field of condensation prevention, and provides a machine room condensation prevention method, device and system, a medium, a controller and a program product.The machine room condensation prevention method comprises the steps that the evaporation temperature of a refrigerant is determined according to the suction pressure of a compressor of an air conditioning system and the fitting coefficient of the refrigerant; according to the refrigerant evaporation temperature, the heat transfer approaching temperature and fan acting temperature rise of the air conditioning system, the air supply predicted temperature of the air conditioning system is determined; the air dew point temperature in the machine room is obtained; and performing hierarchical control on an air conditioning system, a constant humidity machine system and a fresh air system according to the air supply predicted temperature and the air dew point temperature so as to perform condensation prevention on the machine room. The condensate water risk early warning capacity is achieved, traditional passive drainage is converted into active dew prevention of hierarchical control over an air conditioner system, a constant humidity machine system and a fresh air system, the operation reliability of a machine room is greatly improved, and equipment damage and service interruption caused by condensate water generation are fundamentally eradicated.

An apparatus and method are provided for optimizing the use of gas hydrate inhibitors by combining real-time "dew point" measurement with quantum-chemical phase-change analysis. A gas hydrate inhibitor reduces gas moisture; by measuring gas humidity and identifying the "dew type" using two chilled-mirror sensors each equipped with an imaging camera, a "dew coefficient" (0–1) is calculated via quantum chemistry analysis of inhibitor solvation. This mesoscale coefficient is used to monitor fluid phase changes. A general relationship for the water / hydrocarbon "dew coefficient" is derived as a function of changes in Gibbs free energy of dew evaporation (inhibitor solvation), gas temperature and pressure, and gas / liquid density. By combining measured "dew point" and "dew type" with quantum chemistry data of phase transformations "dew coefficient", the optimal inhibitor injection rate is determined, minimizing inhibitor consumption while preventing hydrate formation.

To provide a power storage device capable of suppressing the occurrence of a short circuit caused by dew condensation on an upper cover.SOLUTION: The energy storage apparatus 10 includes at least one energy storage cell 100, an upper cover 220 arranged above the at least one energy storage cell 100, a cooler 300 arranged on an upper surface of the upper cover to cool the at least one energy storage cell, and a cover 400 arranged between the at least one energy storage cell and the upper cover to cover the at least one energy storage cell.SELECTED DRAWING: Figure 4