Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Moisture-absorption characteristic measuring instrument for atmospheric aerosols

An atmospheric aerosol and measuring instrument technology, applied in instruments, analytical materials, etc., can solve problems such as low degree of automation, lack of consideration of particle size distribution spectrum, and difficulty in meeting long-term stable observation requirements, achieving good stability and high degree of automation. Effect

Inactive Publication Date: 2014-02-12
中国气象局广州热带海洋气象研究所 +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although foreign scientific research institutions carried out the research and development of aerosol hygroscopicity measuring instruments earlier, they mainly focused on the measurement of the hygroscopic growth factor of aerosols with specified particle sizes, and lacked the particle size distribution spectrum after particle moisture absorption.
Moreover, the degree of automation of these instruments is low, and it is difficult to meet the needs of long-term stable observation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Moisture-absorption characteristic measuring instrument for atmospheric aerosols
  • Moisture-absorption characteristic measuring instrument for atmospheric aerosols
  • Moisture-absorption characteristic measuring instrument for atmospheric aerosols

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, the atmospheric aerosol hygroscopic characteristic measuring instrument of the present invention comprises drying system, the first humidification system, the first particle size sorting system, the second humidification system, the second particle size sorting system, air wet flow system, particle counting system, compressed air system, data acquisition and processing system.

[0027] Drying system: including a membrane permeable dryer 11, a pump I12, a restricting hole 13, a temperature and humidity sensor I15, a particle filter I14, and a three-way valve I16, the outlet of the particle filter I14 is connected to the inlet of the restricting hole 13, The outlet of the restricting hole 13 is connected to the input end of the outer wall of the membrane osmotic dryer 11, the output end of the outer wall of the membrane osmotic dryer 11 is connected to the pump I12, and the outlet of the permeable membrane of the membrane osmotic dryer 11 is con...

Embodiment 2

[0041] The difference between this embodiment and embodiment 1 is:

[0042] In order to realize the automatic control of the temperature of the water body in the water tank, the humid air flow system also includes a water tank thermostat 63 and a water body temperature sensor 64, and the water tank thermostat 63 measures the temperature of the water body in the water tank 61 through the water body temperature sensor 64 and controls the heater heating. The specific principle is: the water tank thermostat measures the temperature of the water body in the water tank through the water body temperature sensor, and when the temperature of the measured water body is lower than the set value, the heater in the water tank is started to heat the water body.

Embodiment 3

[0044] The difference between this embodiment and Embodiment 1 is: in order to ensure that the wet air flow formed by the air wet air flow system does not condense in the membrane permeable humidifier 23, 41 and cause equipment damage, the air wet air flow system also includes a connection Condensation pipe 65 on the pipe body at the outlet end of water tank 61. The wet air flow from the water tank passes through the condenser first, so that the water vapor content in the wet air flow is slightly reduced.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a moisture-absorption characteristic measuring instrument for atmospheric aerosols. The instrument comprises a drying system, a first humidification system, a first particle size sorting system, a second humidification system, a second particle size sorting system, an air moisture flow system, a particle counting system, an air compression system and a data collecting and processing system. Compared with the prior art, the moisture-absorption characteristic measuring instrument for the atmospheric aerosols has the functions of measuring not only the moisture-absorption growth factors and mixing states of the aerosols with various particle sizes but also the dry (wet) particle-size spectra, is high in degree of automation and stability, is helpful to comprehensively learning about the moisture absorption characteristic of all particle-size segments and the influence on the optical characteristics of the aerosols from the moisture absorption, and is significant in researching the atmospheric ash haze forming mechanism and other aspects.

Description

technical field [0001] The invention relates to an instrument for measuring the hygroscopic properties of atmospheric aerosol. Background technique [0002] Atmospheric aerosol refers to the particle system of solid-liquid multiphase coexistence suspended in the atmosphere with a particle size of 0.001 to 100 microns. Atmospheric aerosols directly affect the Earth's atmospheric radiation balance by scattering and absorbing radiation. Hygroscopic secondary aerosols can also act as cloud condensation nuclei, changing the concentration of cloud condensation nuclei, affecting the optical properties of clouds and the life of clouds, thereby indirectly affecting the earth's radiation balance, which is a hot issue in the field of geosciences. The hygroscopic characteristics of aerosols describe the interaction between aerosol particles and water vapor under certain water vapor conditions. They are related to the physical and chemical properties of aerosols, and affect the optical ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/00
Inventor 谭浩波许汉冰李菲万齐林银燕邓雪娇
Owner 中国气象局广州热带海洋气象研究所
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com