141 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.

Control unit for room air dehumidification with two independent outputs for controlling a fan and a dehumidifier, wherein the control unit comprises means for measuring temperature and relative humidity in the interior and exterior areas, calculates the dew point of the interior and exterior air from the measured values, compares the dew points and, depending on adjustable threshold values ​​for the desired interior temperature and humidity, activates either the fan or the dehumidifier, wherein the control unit operates completely autonomously and can be operated without connection to digital networks, smart home systems, apps or external servers.

The invention discloses a method and system for controlling air dryness and humidity in a tobacco leaf sealing stack, and relates to the technical field of air dryness and humidity control in the tobacco leaf sealing stack, and the method comprises the steps: measuring and recording initial environment parameters of a target tobacco leaf sealing stack, obtaining initial temperature, relative humidity and dew point temperature data, and marking the initial temperature, relative humidity and dew point temperature data as environment data; based on the initial environment data, a multi-layer sealing structure optimization and humidity buffer layer setting method is adopted to carry out optimization design on the sealing performance of the tobacco leaf sealing stack, and a sealing stack structure is obtained; based on the environment data, the temperature and the humidity in the sealed stack are adjusted by adopting a humidity dynamic regulation and control method, an optimal temperature and humidity adjustment scheme is calculated by utilizing an AI prediction model, and an adjusted temperature and humidity environment is obtained; and based on the adjusted temperature and humidity environment, dynamically adjusting the ventilation quantity or the heating power in the sealed stack by adopting a dew-point temperature compensation mechanism method to obtain a stable dew-point temperature environment.

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

To suppress dew formation on a floor surface in a floor-standing type air conditioner having a lower blowout port.SOLUTION: A floor-standing type air conditioner 10 that can execute a heating operation and a humidification operation includes: a casing 72 having a flow passage with a suction port 72c, an upper blowout port 72a provided on the upper side and a lower blowout port 72b provided on the lower side; a fan 24 that generates an air flow from the suction port 72c toward each of the upper and lower blowout ports 72a, 72b in the flow passage; a heater 22 that heats air in the flow passage during the heating operation; and a humidifier 50 that humidifies the air in the flow passage during the humidification operation. After the heating operation and the humidification operation are started, until a predetermined condition is satisfied, blowing out of humidification air from the lower blowout port 72b is restricted.SELECTED DRAWING: Figure 1

To provide a show case for appropriately controlling an output of a due condensation proof heater in accordance with a change of a peripheral environment so as not to generate due condensation and not to perform excessive heating.SOLUTION: A show case includes: a due condensation proof heater 15 arranged in a decorative frame 9 being a due condensation generation place of a show case body 4; detection means 12, 13 of peripheral temperature and peripheral moisture in the show case; and a heater control section 20 for controlling an electrification amount to the due condensation proof heater 15. The heater control section 20 controls the electrification amount to the due condensation proof heater 15 on the basis of dew-point temperature calculated based on the peripheral temperature and the peripheral moisture detected by the detection means 12, 13 and also on the basis of the peripheral temperature.SELECTED DRAWING: Figure 5

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.

The invention discloses an anti-condensation bubble type water level gauge which comprises a main machine body, a controller and an air pump are arranged in the main machine body, the air pump is electrically connected with the controller, an air inlet pipe is arranged on an air inlet of the air pump, and an air outlet pipe is arranged on an air outlet of the air pump. One end of the air inlet pipe penetrates through the main machine body and then extends out of the main machine body. According to the invention, the dew cleaning assembly is arranged, the vibration of the dew cleaning assembly can drive the pressure sensor to vibrate, and the vibration of the pressure sensor shakes off dew condensed on the surface, so that the surface of the pressure sensor can be kept clean, and the detection accuracy of the pressure sensor is improved; the filtering assembly filters and cleans the gas sucked by the air pump, so that the gas entering the outer pipe and the three-way pipe does not have dust particles, and the dust particles are prevented from being attached to the outer pipe and the three-way pipe to influence the detection accuracy of the gas conveying and the pressure sensor.

The present invention relates to a dew condensation prevention device for pipelines, comprising: two clamping plates which are oppositely arranged and rotatably connected on one of the opposite sides, and by rotating the two clamping plates, an enclosing space for clamping a jacketed pipeline is formed; a protective layer attached to the inner walls of the two clamping plates, when the two clamping plates enclose to form the enclosing space, the two ends of the protective layer are attached to each other and enclosed in a ring shape, and the joint seam of the protective layer is staggered from the joint seam of the two clamping plates; a water receiving trough fixed below the clamping plate and corresponding to the end of the enclosing space; and a support frame with the bottom end fixed to the water receiving trough and the top end located above the clamping plate for connecting to the main structure above the pipeline. The present invention effectively solves the problem of dew condensation on the outer wall of the water supply and drainage pipeline, avoids the condensation of water dew on the outer wall of the pipeline through the dew condensation prevention device, prolongs the service life of the pipeline, ensures the normal operation of the water supply and drainage system, and the device has a simple structure, is easy to implement and has strong adaptability.

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 control method and device of storage equipment and refrigeration equipment, and belongs to the field of refrigeration equipment. The control method of the storage equipment comprises the following steps: acquiring actual environment temperature and humidity information corresponding to the storage equipment; querying a target association table based on the actual environment temperature and humidity information, and obtaining a first duration matched with the actual environment temperature and humidity information; the target association table is used for representing a corresponding relation between the conduction duration of the anti-dew pipe and the actual environment temperature and humidity information; and after the bypass pipe is controlled to be closed and the dew-proof pipe is controlled to operate for the first duration, the dew-proof pipe is closed and the bypass pipe is controlled to operate. According to the control method of the storage equipment, the working time length of the anti-dew pipe can be dynamically adjusted based on the actual environment temperature and humidity, on the basis of ensuring no condensation, the heat load in the storage equipment is effectively reduced, the operation energy consumption of the energy storage equipment is reduced, and optimal heat management is favorably realized.

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.

To provide a dehumidifier suppressing dew condensation on a water collection part and a tank.SOLUTION: A dehumidifier 100 includes a body case 1 having a suction port and a blowout port. The body case 1 includes: a dehumidifying part configured by a refrigeration cycle where a compressor 7, a radiator, an expander and a heat sink are sequentially and annularly connected; a blowing part acting to a refrigeration cycle; a water collection part 12 collecting dew condensation water dropping from the dehumidifying part; and a tank 13 storing the dew condensation water collected in the water collection part 12. The body case 1 includes a tank case 14 partitioning a tank space part 1a where the tank 13 is housed and a compressor space part 1b where the compressor 7 is housed. The tank case 14 supports the water collection part 12 and has an air hole 26.SELECTED DRAWING: Figure 3

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 present invention discloses a photovoltaic power generation prediction method and system, which relates to the technical field of photovoltaic power generation and includes: collecting data; predicting whether dew characteristics occur; when dew characteristics occur, predicting the occurrence time, the volume of dew and the predicted occurrence position; determining whether dust and dew mixture appears on the surface of the photovoltaic module according to the occurrence time, dust characteristics, the volume of dew, the predicted occurrence position and the inclination angle of the photovoltaic module; if it is determined that the mixture appears, predicting the occlusion area; adding the occlusion area as an input parameter to the power generation prediction model; according to the historical data, the present invention performs data modeling on the dew situation, inputs the current environmental parameters into the model, so as to predict the occlusion area after the mixture of dust and water, thereby digitalizing the influence of dew, dust and muddy water on the power generation, thereby correcting the light that the photovoltaic module is expected to receive, thereby correcting the predicted power generation, and thereby increasing the accuracy of the prediction result.

To suppress condensation on a frame member while maintaining the mounting accuracy between a metal frame and the frame member.SOLUTION: A fitting includes a metal frame 32 that forms a frame body installed in an opening of a building, a frame member 52 installed on an interior side of the metal frame 32, and a connecting member 62 that connects the metal frame 32 and the frame member 52. The connecting member 62 is made up of a heat-insulating shaped member which has a first connecting portion 621 that is connected to the metal frame 32, a second connecting portion 622 that is connected to the frame member 52, and a heat-insulating member 623 that is installed between the first and second connecting portions 621, 622.SELECTED DRAWING: Figure 3

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.

This component is a building board material with a fine corrugated uneven pattern on the surface that appears matte from a distance and has an anti-glare effect. The pitch and depth of the corrugations, and the rounded shape of the peak of the mountain shape are formed into a shape where the dew water droplets are held and do not fall. The same corrugated uneven pattern as the surface is formed by wrapping it from the corner to the side so that the anti-glare effect and the effect of preventing water droplets from falling are also exhibited at the corners of the board material. The corrugations have a pitch of 0.6 mm and a depth of 0.09 mm.

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.