A kind of forced ventilation radiation shield with flow guide device

Abstract

The invention discloses a forced ventilation radiation shield with a deflector, which comprises a motor, a support plate, a deflector, a support column and a temperature sensor probe; Rotation; the support plate is set horizontally, one end is fixed on the drive shaft of the motor, and the motor can drive the support plate to rotate in the horizontal plane; the shroud is a trumpet-shaped structure with both ends penetrated; the shroud is fixed on the other end of the support plate through the support column The upper surface of the support plate rotates with the support plate, and the shroud is arranged in a direction perpendicular to the radius of rotation; the temperature sensor probe is fixed in the middle of the shroud; the motor drives the support plate to rotate, and the shroud located at the outer end of the support plate and the inside of the shroud The temperature sensor probe moves accordingly. The invention has the advantages of scientific and reasonable structure, strong ventilation, small temperature measurement error and the like.

Description

technical field [0001] The invention belongs to the field of meteorological instruments, and relates to a radiation shield, in particular to a forced ventilation radiation shield with a flow guiding device. Background technique [0002] Information such as temperature, humidity, and wind speed in the atmospheric environment is an important indicator for human scientific research and production practice. Among them, the study of surface air temperature is particularly important. Surface air temperature data can reflect atmospheric dynamics and thermal processes, and are important for high-precision numerical forecasting. , climate diagnosis and prediction, atmospheric environment monitoring and climate change prediction and other research basic data. In recent years, scholars at home and abroad have carried out a lot of research on surface atmospheric temperature data. The research results of Haines et al. show that the average global surface atmospheric temperature increase...

AI Technical Summary

Problems solved by technology

The use of blades or rings can help reduce radiation errors, but it is difficult to make the airflow velocity sensed by the temperature sensor probe in the radiation shield as large as possible, so it is difficult to eliminate the effect of thermal pollution

Therefore, there is a contradiction between the above two design requirements, which brings difficulties to the improvement of the performance of the radiation shield

Images