13 results about "Water vapor absorption" patented technology

The utility model discloses a temperature and humidity adjusting device of a cooling machine for peanut processing, which relates to the technical field of peanut processing, and comprises a water vapor absorption filter material which is fixedly arranged at the upper end inside a temperature control bracket of the cooling machine, and the device can absorb water vapor in air to a certain extent by installing the water vapor absorption filter material, so that the temperature and humidity of the cooling machine can be adjusted. A semiconductor chilling plate is installed to be matched with a cold source exchange support so that air flowing in the device can exchange heat with the cold source exchange support, then the air temperature is lowered, the temperature of air exhausted out of the device is adjusted, and the moisture content of peanuts can be prevented from rising; meanwhile, when the air exchanges heat with the cold source exchange support, water vapor can be quickly cooled and liquefied into water drops, the dehumidification capacity of the device is further improved, and the situation that the quality of the dried peanuts is affected due to the fact that the water content of the peanuts rises is avoided.

The present application relates to the field of optical measurement technology, disclose a kind of based on open optical path atmospheric NO3 radical measurement system and method, system includes light source module, first convex lens, first high reflectivity lens, second high reflectivity lens, detachable cavity, second convex lens and spectrometer, the present application is directly sampled to the air between high reflect lens by the design of open optical path, avoid the wall loss of NO3 radical in active sampling, to improve the sensitivity and accuracy of measurement. While introducing the design of detachable cavity, realize the flexible switching of zero air and actual atmospheric sampling. The introduction of zero-point spectral library method effectively compensates the influence of temperature and humidity change on light source and spectrometer, the spectral shift caused by environmental change is eliminated by dynamic calibration, in addition, the input of real-time water vapor absorption cross section can accurately remove the influence of water vapor absorption on NO3 radical measurement, further improve the reliability of measurement result.

The application discloses a laser transmission power attenuation calculation method, a power adjustment method and a system, and belongs to the technical field of laser transmission. The calculation method comprises the following steps: acquiring the precipitable water effective thickness and the effective optical thickness on a laser transmission path; calculating the water vapor absorption transmittance and the atmospheric transmittance caused by scattering by using the precipitable water effective thickness and the effective optical thickness; and calculating the attenuation power of the laser under the transmission distance by using the water vapor absorption transmittance and the atmospheric transmittance. The application has high calculation precision, strong environmental adaptability, can improve the system performance, and has a wide application prospect.

The present application relates to the field of infrared temperature measurement, more particularly to a temperature and humidity attenuation compensation method in infrared radiation temperature measurement, comprising: obtaining the temperature of a target object based on an infrared temperature measurement device, establishing a functional relationship between the spectral radiance, a given wavelength range and the target measured temperature, and calculating the spectral radiance corresponding to the target measured temperature and the ambient temperature respectively; also establishing a functional relationship between the water vapor absorption transmittance and the ambient temperature and humidity, and obtaining the water vapor absorption transmittance under different ambient temperatures and different ambient humidities; also deriving a correction formula of the target infrared radiation after attenuation by the ambient temperature and humidity based on the Kirchhoff's law of thermal radiation, and correcting the measured spectral radiance of the target object; finally inversely solving the real temperature of the target object. The present application can solve the problem of inaccurate infrared temperature measurement caused by inconsistent infrared radiation attenuation rules under different ambient temperature and humidity.

This invention provides a technology to improve the dehumidification efficiency of dehumidifiers. [Solution] The dehumidifier comprises a first absorption tower that absorbs water contained in the target gas into a first absorbent liquid, a first regeneration tower that releases water from the first absorbent liquid that has absorbed water in the first absorption tower and returns the first absorbent liquid that has released water back to the first absorption tower, a cooling unit that generates cooling by generating water vapor and cools the first absorbent liquid that returns from the first regeneration tower to the first absorption tower, and a second absorption tower connected to the cooling unit that absorbs the water vapor generated in the cooling unit into a second absorbent liquid.

This utility model discloses a new energy-saving heat recovery system, belonging to the field of heat recovery technology. It includes a tower, and a regeneration component comprising two sets of symmetrically arranged top plate heat exchangers and two sets of separation towers connected within the tower. A gas phase pipeline connects the top plate heat exchangers and the circulating tower. A compressor compresses and heats the water vapor generated by the top plate heat exchangers and separation towers, introducing the top gas phase into the top plate heat exchangers. The circulating tower's top gas phase heats the water in the heat exchangers to boiling. Forced circulation occurs between the top plate heat exchangers and the separation towers via a circulating pump, generating water vapor that absorbs the latent heat of vaporization from the circulating tower's top gas phase. After releasing its latent heat of vaporization, the circulating tower's top gas phase condenses into a liquid state at a high temperature of 138°C. The water vapor generated by the top plate heat exchangers and separation towers is then introduced into the compressor. Through the cooperation of the compressor and the top condensate preheater, the water vapor is compressed to a pressure of 1000 kPa and a temperature of 175.38°C, supplying the reboiler.

The utility model relates to the technical field of bottle body sterilization and drying, and discloses laminar flow type hot air circulation sterilization equipment which comprises a conveying groove, and a conveying belt is mounted in a cavity of the conveying groove; an air outlet pipe and an air inlet pipe are installed on the two sides of the outer wall of the drying box in a penetrating mode; the laminar flow circulation assembly comprises a circulation pipe, a water vapor absorption unit and an air guide unit; the circulating pipe is in a U shape and fixedly installed on the outer wall of the drying box, the air guide unit comprises an air gathering pipe and an ejection pipe, and the water vapor absorption unit comprises a rectangular box and a containing box. Hot air enters the drying box cavity through the air inlet pipe to dry bottle bodies, by arranging the laminar flow circulation assembly, the hot air entering the drying box cavity flows in a multi-layer circulation mode, the drying efficiency of the bottle bodies is improved, by arranging the water vapor absorption unit, water vapor carried in the hot air is absorbed, and the drying effect is further improved; and the air guide unit is arranged to dry the interior of the bottle body cavity.

The present application relates to a kind of anesthetic pipeline filters of independent channel of inhalation and exhalation, including a gas inlet connector;And a gas outlet connector, the gas inlet connector and gas outlet connector are symmetrically arranged;And filter main body, filter main body is communicated and arranged between gas inlet connector and gas outlet connector, filter main body includes shell, and gas inlet connector and gas outlet connector are arranged at both ends of shell;And parallelly arranged in shell, gas inlet channel and gas outlet channel with built-in one-way valve, gas inlet connector, gas inlet channel and gas outlet connector are positively communicated by one-way valve, and gas outlet connector, gas outlet channel and gas inlet connector are reversely communicated by one-way valve;And filter disc, the filter disc is connected in shell, to filter the gas in gas inlet channel and gas outlet channel, and the minimum envelope circle diameter of gas inlet channel and gas outlet channel is less than the diameter of filter disc.The present application can make up the risk of inhalation resistance increase caused by filter membrane water vapor absorption of existing filter inhalation and exhalation same cavity.

The utility model relates to the technical field of drying ovens, in particular to a hot air circulation vacuum drying oven, which is convenient for quickly drying a small to-be-dried piece, filtering air, absorbing water vapor and replacing and installing a filter screen, and improves the practicability and the drying efficiency and quality. Comprising a hot air circulation mechanism and a vacuum mechanism. The hot air circulating mechanism is mounted on the switching mechanism, the filtering mechanism is mounted at the top end of the inner wall of the switching mechanism, the vacuum mechanism is mounted at the top end of the switching mechanism, the rotating mechanism is mounted in the switching mechanism, and the storage mechanism is mounted on the rotating mechanism; opening and closing are facilitated through the switching mechanism, the hot air circulation mechanism dries the workpieces, and the filtering mechanism filters air dried by the hot air circulation mechanism and absorbs water vapor.

This invention specifically relates to a gas concentration measurement method, aiming to address the technical problems of existing gas concentration measurement methods, such as systematic inversion bias, sensitivity to environmental conditions, insufficient robustness to changes in system response, difficulty in balancing computational complexity and real-time performance, and insufficient inversion stability under low signal-to-noise ratio conditions. This invention detects a target area to obtain a reference spectral image, a spectral image of the gas to be measured, and a water vapor spectral image. Through dark-field and flat-field correction, it obtains the reference equivalent radiance, the equivalent radiance of the gas to be measured, and the equivalent radiance of water vapor. Normalization is performed using the reference equivalent radiance to obtain the logarithmic absorbance of the gas to be measured and the logarithmic absorbance of water vapor. Water vapor absorption interference is subtracted using the logarithmic absorbance of water vapor, finally yielding the concentration of the gas to be measured. This reduces the influence of water vapor absorption on the detection results and improves inversion stability.

This invention discloses a double-layer aerogel packaging pad, its preparation method, and its application. The aerogel packaging pad includes an upper agar layer, a lower gelatin layer, and a natural antibacterial agent. The aerogel pad of this invention comprises a hydrophilic agar layer and a hydrophobic gelatin layer. The soft agar layer wraps around fruits and vegetables, providing ample cushioning, while the gelatin layer, with its certain mechanical strength, provides sufficient resistance to compressive stress, thereby preventing mechanical damage to fruits and vegetables caused by external collisions or compression during transportation. The aerogel packaging pad not only has extremely high water absorption and water vapor absorption capacity but also possesses an intelligent humidity regulation function of "rapid absorption and slow release." It maintains the humidity inside the packaging pad at a suitable level, preventing the fresh fruits and vegetables from wilting due to dehydration and inhibiting the growth of microorganisms caused by excessive moisture, significantly extending the shelf life of fruits and vegetables.

A wind vector prediction method includes receiving, by an analysis device, a weather video; inputting, by the analysis device, a first base video of a first time point for at least one water vapor absorption channel among a plurality of water vapor absorption channels included in the weather video and a reference video of a time point different from the first time point into a first learning network, and predicting, by the analysis device, a wind vector of a second time point after the first time point for the at least one water vapor absorption channel based on information output from the first learning network.

The invention provides an ammonia gas concentration measurement method and a TDLAS ammonia measurement system, and the method comprises the steps: respectively collecting a first 2f signal peak value corresponding to the ammonia gas concentration and a second 2f signal peak value corresponding to the water vapor concentration based on a preset ammonia gas absorption spectral line and a water vapor absorption spectral line; calling a preset correction term formula based on a pressure value and a temperature value of the current moment of the measurement environment and the second 2f signal peak value, and calculating to obtain a pressure correction term, a temperature correction term, a water vapor concentration correction term and a spectral line broadening correction term; performing error correction on a reference interference ratio by adopting the correction term to obtain an interference compensation factor; the second 2f signal peak value and the interference compensation factor are utilized, a preset compensation model is adopted to correct the first 2f signal peak value, and a third 2f signal peak value corresponding to the ammonia gas concentration after interference elimination is obtained; the method has the advantages that water vapor cross interference signals are accurately counteracted, and measurement deviation caused by spectral line broadening is avoided.