阅读说明：本技术 一种大气接触冻结核的测量装置 (Measuring device for atmospheric contact frozen nodule ) 是由 陈魁 楚志刚 薛丰昌 詹少伟 苗春生 周可 张越 蒋惠 何川 于 2019-11-08 设计创作，主要内容包括：本发明涉及一种大气接触冻结核的测量装置,包括呈U字型的测量管路,测量管路包括垂直进气管、水平控制管和垂直测量管,垂直进气管和垂直测量管分别连接于水平控制管的两端上方；垂直进气管顶部设有第一空气进口,垂直进气管内自上而写依次设有除湿器和干燥器；水平控制管靠近垂直进气管一端端部设有第二空气进口,水平控制管内自靠近垂直进气管一端向另一端依次设有过滤器和冷凝器；超声波雾汽发生器连接于水平控制管在冷凝器与垂直测量管之间的位置,所述垂直测量管内自下而上依次设有气流再分布装置、分子筛和喷嘴,垂直测量管在喷嘴处的管径自下而上逐渐减小,垂直测量管顶部与气泵连接。该系统能准确测量大气接触冻结核。(The invention relates to a measuring device for atmospheric contact frozen nodule, which comprises a U-shaped measuring pipeline, wherein the measuring pipeline comprises a vertical air inlet pipe, a horizontal control pipe and a vertical measuring pipe, and the vertical air inlet pipe and the vertical measuring pipe are respectively connected above two ends of the horizontal control pipe; the top of the vertical air inlet pipe is provided with a first air inlet, and a dehumidifier and a dryer are sequentially arranged in the vertical air inlet pipe from top to bottom; a second air inlet is formed in the end part, close to the vertical air inlet pipe, of the horizontal control pipe, and a filter and a condenser are sequentially arranged in the horizontal control pipe from one end, close to the vertical air inlet pipe, to the other end; the ultrasonic mist generator is connected to the position of the horizontal control pipe between the condenser and the vertical measuring pipe, the vertical measuring pipe is internally provided with an air flow redistribution device, a molecular sieve and a nozzle from bottom to top in sequence, the pipe diameter of the vertical measuring pipe at the nozzle is gradually reduced from bottom to top, and the top of the vertical measuring pipe is connected with an air pump. The system can accurately measure the atmosphere contact frozen nodule.)

1. The utility model provides a measuring device of atmosphere contact frozen core which characterized in that: the ultrasonic mist generator comprises a U-shaped measuring pipeline, an ultrasonic mist generator and an air pump, wherein the measuring pipeline comprises a vertical air inlet pipe, a horizontal control pipe and a vertical measuring pipe, and the vertical air inlet pipe and the vertical measuring pipe are respectively connected above two ends of the horizontal control pipe; the top of the vertical air inlet pipe is provided with a first air inlet, and a dehumidifier and a dryer are sequentially arranged in the vertical air inlet pipe from top to bottom; a second air inlet is formed in the end part, close to the vertical air inlet pipe, of the horizontal control pipe, and a filter and a condenser are sequentially arranged in the horizontal control pipe from one end, close to the vertical air inlet pipe, to the other end; ultrasonic wave mist generator connects in the position of horizontal control pipe between condenser and vertical measurement pipe, be equipped with air current redistribution device, molecular sieve and nozzle in proper order from bottom to top in the vertical measurement pipe, the pipe diameter of vertical measurement pipe in nozzle department reduces from bottom to top gradually, and the vertical measurement pipe top is connected with the air pump.

2. The apparatus for measuring atmospheric exposure to frozen nodules according to claim 1, wherein: and a gas mixer is arranged in the horizontal control pipe at the position corresponding to the vertical gas inlet pipe.

3. The apparatus for measuring atmospheric exposure to frozen nodules according to claim 1, wherein: and a sealing ring is arranged at the joint of the vertical air inlet pipe and the horizontal control pipe.

4. The apparatus for measuring atmospheric exposure to frozen nodules according to claim 1, wherein: the condenser comprises a main condenser and a secondary condenser, wherein the main condenser and the secondary condenser are sequentially arranged in the horizontal control pipe along the air flowing direction.

5. The apparatus for measuring atmospheric exposure to frozen nodules according to claim 1, wherein: the horizontal control pipe is provided with a mixing chamber at the joint of the horizontal control pipe and the vertical measuring pipe.

6. The apparatus for measuring atmospheric exposure to frozen nodules according to claim 1, wherein: the vertical measuring tube is provided with an observation tube on the upper part of the nozzle, the diameter of the observation tube is matched with the diameter of the outlet of the nozzle, a CCD mounting hole and a sight hole are sequentially arranged on the observation tube from bottom to top, the CCD mounting hole is used for mounting a CCD camera, and transparent PVC plastic or transparent organic glass is arranged on the sight hole.

7. The apparatus for measuring atmospheric exposure to frozen nodules according to claim 1, wherein: and the top of the vertical measuring tube is provided with a mass flow meter.

8. The apparatus for measuring atmospheric exposure to frozen nodules according to claim 1, wherein: a water vapor inlet valve is arranged between the ultrasonic mist generator and the horizontal control pipe; and a flow regulating valve is arranged between the air pump and the vertical measuring tube.

9. The apparatus for measuring atmospheric exposure to frozen nodules according to claim 1, wherein: and a temperature probe, a pressure probe and a humidity probe are arranged at the mixing chamber.

10. The apparatus for measuring atmospheric exposure to frozen nodules according to claim 1, wherein: the bottom of the horizontal control pipe is provided with a support, and one side of the vertical measuring pipe, which is far away from the vertical air inlet pipe, is provided with a fixing frame.

Technical Field

The invention relates to a measuring device for atmospheric contact frozen nodule, belonging to the field of atmospheric science and environmental science.

Background

The atmospheric aerosol can become atmospheric ice nuclei through activation, indirectly influence cloud, precipitation and global climate, and play an important role in earth radiation balance and water circulation. There are two important pathways for ice crystal formation in the atmosphere: homonucleation and heteronucleation. Wherein homogeneous nucleation needs to occur at minus 38 ℃, so heterogeneous nucleation is a very important way for nucleation of low-level atmosphere. While heterogeneous nucleation mechanisms can be divided into four categories: sublimation nucleation, coagulation freezing nucleation, infiltration freezing nucleation and contact freezing nucleation. In the cloud, contact freezing nucleation is an important process, and the micro-physical characteristics of the cloud are changed, so that the precipitation capacity and the radiation characteristics are influenced. At present, the research of contact freezing nucleation is mainly based on theory and ideal simulation, and the research of independent measurement is less. Therefore, the understanding of the contact freezing nucleation of the atmospheric aerosol is limited, and in order to have more comprehensive research on the contact freezing nucleation of the atmospheric aerosol, a set of equipment and a method for measuring the contact freezing nucleation of the atmospheric aerosol are designed, so that the research on the contact freezing nucleation of the atmospheric aerosol is facilitated, the influence of the atmospheric aerosol on radiation balance and cloud precipitation is further understood, and a reliable theoretical basis is provided for artificial rainfall and the like.

At present, there are many different principle test devices for measuring the characteristics of the atmospheric ice core at home and abroad, such as patent CN2000410039465.4, experimental cooling table and system for calculating the frozen nodule content in water, and patent CN201210150601.1, cloud room and cloud room system for atmospheric ice core activation counting. However, in the prior art, no research device and method specially aiming at the contact freezing nucleation mechanism exist, which are not beneficial to deeply understanding the contact freezing nucleation mechanism of the atmospheric ice core.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides an atmospheric contact frozen nodule measuring system which is accurate in measurement and can carry out deep research on a contact freezing nucleation mechanism for researching atmospheric ice nuclei.

In order to achieve the purpose, the technical scheme provided by the invention is as follows: a measuring device for atmospheric contact frozen nodules comprises a U-shaped measuring pipeline, an ultrasonic mist generator and an air pump, wherein the measuring pipeline comprises a vertical air inlet pipe, a horizontal control pipe and a vertical measuring pipe, and the vertical air inlet pipe and the vertical measuring pipe are respectively connected above two ends of the horizontal control pipe; the top of the vertical air inlet pipe is provided with a first air inlet, and a dehumidifier and a dryer are sequentially arranged in the vertical air inlet pipe from top to bottom; a second air inlet is formed in the end part, close to the vertical air inlet pipe, of the horizontal control pipe, and a filter and a condenser are sequentially arranged in the horizontal control pipe from one end, close to the vertical air inlet pipe, to the other end; ultrasonic wave mist generator connects in the position of horizontal control pipe between condenser and vertical measurement pipe, be equipped with air current redistribution device, molecular sieve and nozzle in proper order from bottom to top in the vertical measurement pipe, the pipe diameter of vertical measurement pipe in nozzle department reduces from bottom to top gradually, and the vertical measurement pipe top is connected with the air pump.

The technical scheme is further designed as follows: and a gas mixer is arranged in the horizontal control pipe at the position corresponding to the vertical gas inlet pipe.

And a sealing ring is arranged at the joint of the vertical air inlet pipe and the horizontal control pipe.

The condenser comprises a main condenser and a secondary condenser, wherein the main condenser and the secondary condenser are sequentially arranged in the horizontal control pipe along the air flowing direction.

The horizontal control pipe is provided with a mixing chamber at the joint of the horizontal control pipe and the vertical measuring pipe.

The vertical measuring tube is provided with an observation tube on the upper part of the nozzle, the diameter of the observation tube is matched with the diameter of the outlet of the nozzle, a CCD mounting hole and a sight hole are sequentially arranged on the observation tube from bottom to top, the CCD mounting hole is used for mounting a CCD camera, and transparent PVC plastic or transparent organic glass is arranged on the sight hole.

And the top of the vertical measuring tube is provided with a mass flow meter.

A water vapor inlet valve is arranged between the ultrasonic mist generator and the horizontal control pipe; and a flow regulating valve is arranged between the air pump and the vertical measuring tube.

And a temperature probe, a pressure probe and a humidity probe are arranged at the mixing chamber.

The bottom of the horizontal control pipe is provided with a support, and one side of the vertical measuring pipe, which is far away from the vertical air inlet pipe, is provided with a fixing frame.

The invention has the beneficial effects that:

the system for measuring the atmospheric contact frozen tuberculosis can simply, accurately and specifically carry out deep research on the contact frozen nucleation mechanism of the atmospheric ice core. The contact nucleation of the atmospheric ice nucleus belongs to an important phenomenon in the cold cloud, and influences cloud micro-physics, precipitation capacity, radiation characteristics and the like. The method is beneficial to researching the contact nucleation mechanism of the atmospheric ice core, deeply knowing the influence of the aerosol on radiation balance and cloud precipitation, and providing a reliable theoretical basis for artificial rainfall and the like. The method can be widely applied to the fields and occasions of measurement and research of atmospheric ice nucleus contact nucleation in the meteorological and environmental industries.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic diagram of the dehumidifier of FIG. 1;

FIG. 4 is a schematic view of the drying tube of FIG. 1;

FIG. 5 is a top view of the gas flow redistribution device of FIG. 1;

fig. 6 is a left side view of fig. 5.

In the figure: 1-a first air inlet, 2-a dehumidifier, 3-a dryer, 4-a sealing ring, 5-a second air inlet, 6-a gas mixer, 7-a support, 8-a filter, 9-a main condenser, 10-a secondary condenser, 11-a water vapor inlet valve, 12-an ultrasonic mist generator, 13-a mixing chamber, 14-an airflow redistribution device, 15-a molecular sieve, 16-a nozzle, 17-a CCD mounting hole, 18-a sight hole, 19-a mass flowmeter, 20-a fixing frame, 21-a flow regulating valve, 22-an air pump, 23-a temperature, pressure and humidity probe, 101-a dehumidifier inlet, 102-an air inlet pipe, 103-a condensate inlet, 104-a condensate outlet, 105-a gas-liquid separator, 106-outlet pipe, 107-sealing rubber ring, 108-liquid collecting bottle, 201-airflow inlet, 202-diffusion drying pipe, 203-drying agent and 204-airflow outlet.

Detailed Description

The invention is described in detail below with reference to the figures and the specific embodiments.