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Air velocity, pressure and temperature calibration system based on jet air tunnel

A calibration system and wind tunnel technology, applied in the direction of measuring fluid pressure, thermometer, thermometer test/calibration, etc., can solve problems such as low simulation accuracy, inability to realize simultaneous pressure simulation, and inability to realize wind speed control

Pending Publication Date: 2018-10-26
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology

However, its simulation accuracy is low, it is impossible to control the wind speed, and it is impossible to realize the simultaneous simulation of pressure, temperature and wind speed

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  • Air velocity, pressure and temperature calibration system based on jet air tunnel

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] The purpose of the present invention is to provide a wind speed, pressure and temperature calibration system based on a jet wind tunnel to realize accurate simulation of wind speed, pressure and temperature so as to ensure the calibration of all environmental instruments.

[0025] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in con...

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Abstract

The invention discloses an air velocity, pressure and temperature calibration system based on jet air tunnel, comprising a controller, a vacuum pump, a refrigerating unit, an evaporator, a jet air tunnel, a fan, and a sealed chamber; the evaporator, the jet air tunnel and the fan are arranged in the sealed chamber; the controller, the refrigerating unit and the vacuum pump are arranged outside thesealed chamber; the fan is arranged inside the jet air tunnel; the controller is used for controlling the refrigerating unit, the jet air tunnel and the vacuum pump to change interior temperature, air velocity and pressure of the sealed chamber. The air velocity, pressure and temperature calibration system can precisely simulate air velocity, pressure and temperature to ensure calibration for allenvironmental instruments.

Description

technical field [0001] The invention relates to the field of real environment simulation, in particular to a wind speed, pressure and temperature calibration system based on a jet wind tunnel. Background technique [0002] The calibration of wind speed, pressure and temperature actually realizes the calibration of anemometer, particle sampler, gas instrument and all environmental instruments by simulating different wind speed, temperature and pressure environments. By changing the wind speed in the environment, the influence of different particle samplers on the cutting efficiency at different wind speeds can be predicted. Or, by changing the temperature and pressure in the environment, the change of the gas instrument at different pressures and different temperatures can be predicted. At present, due to the unknown sampling environment, sampling instruments often have inaccurate data, over-range, abnormal values, and abnormal instrument operating parameters. Therefore, in ...

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Application Information

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IPC IPC(8): G01K15/00G01L27/00G01P21/02
CPCG01K15/005G01L27/005G01P21/025
Inventor 杨文白志鹏耿春梅殷宝辉高凌云韩斌赵雪艳王静王歆华赵若杰张楠王健马银红刘盈盈孙峰张霞
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI