Ventilation device for temperature sensor array

Abstract

The invention discloses a ventilation device for a temperature sensor array, and belongs to the technical field of meteorological instruments. The device comprises a plurality of supporting columns which are parallel to one another, and the supporting columns are vertically arranged; a reflecting plate I and a reflecting plate II are respectively fixed at the head and tail ends of the plurality of supporting columns; a plurality of flow guide structures are arranged outside the whole supporting column in a sleeving manner in the length direction of the supporting column; the flow guide structure comprises two flow guide plates, each flow guide plate is in a convex circular truncated cone shape with an upper opening and a lower opening, and the two flow guide plates are symmetrically arranged; a flow guide opening is formed between the two flow guide discs, and the caliber of the flow guide opening is gradually increased from inside to outside. The drainage disc can guide airflow to enter the ventilation channel, so that the speeds of internal airflow and external airflow are basically consistent, and low-angle solar radiation in the morning and evening can be blocked.

Description

technical field [0001] The invention belongs to the technical field of meteorological instruments, and more specifically relates to a ventilation device for a temperature sensor array. Background technique [0002] In the process of measuring the air temperature by the temperature sensor of the weather station, the solar radiation during the day causes the temperature sensor to heat up, which is higher than the air temperature of the surrounding environment. The error caused by this phenomenon is called the solar radiation error. [0003] At present, the weather station uses shutters or natural ventilation radiation shields to avoid direct radiation from the sun to the temperature sensor probe and reduce radiation errors. Because the shutter blades and radiation shield rings are not conducive to air flow, the low air velocity inside the shutter or radiation shield will lead to increased radiation errors. It is generally believed that the reduction of air velocity inside the...

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Problems solved by technology

[0004] Aiming at the problems of large radiation error and thermal pollution in the existing ventilation device, the present invention provides a ventilation device for temperature sensor array, which is optimized and improved on the basis of the existing ventilation device, and adopts multiple guides The structure guides the airflow, which can not only increase the ventilation effect, but also guide the airflow into the ventilation channel, so that the speed of the internal and external airflow is basically the same. At the same time, it can also block the low-angle solar radiation in the morning and evening

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