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System and method for quickly adjusting humidity of environment wind tunnel

An adjustment system and wind tunnel technology, applied in the field of automotive environmental wind tunnel systems, can solve the problems of low adjustment accuracy and slow adjustment speed, and achieve the effects of fast adjustment speed, reduced adjustment time, and high adjustment accuracy

Active Publication Date: 2018-07-31
CHINA AUTOMOTIVE ENG RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a fast humidity adjustment system for an environmental wind tunnel to alleviate the slow adjustment speed and low adjustment accuracy of the adjustment system existing in the prior art when the temperature and humidity of the environmental wind tunnel need to change working conditions. question

Method used

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  • System and method for quickly adjusting humidity of environment wind tunnel
  • System and method for quickly adjusting humidity of environment wind tunnel
  • System and method for quickly adjusting humidity of environment wind tunnel

Examples

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Embodiment 1

[0035] Such as figure 1 As shown in -4, in this embodiment, an environment wind tunnel humidity quick adjustment system is provided, including dehumidification section I, large flow section II and quick adjustment section IV; outside air enters the dehumidification section I first, and then enters the large flow section Flow section II, the dehumidification section I dehumidifies the outside air, and the large flow section II cools and dehumidifies the outside air, or heats or heats and humidifies the outside air. The outside air is sent into the environment wind tunnel after being adjusted by the dehumidification section I and the large flow section II.

[0036] One end of the quick adjustment section IV is connected to the environmental wind tunnel through a pipeline. A fan is installed on the pipeline. The air inlet of the fan is close to the environmental wind tunnel, and the air outlet of the fan is far away from the environmental wind tunnel. gas.

[0037] The pipeline...

Embodiment 2

[0049] The environmental wind tunnel humidity rapid adjustment system provided in this embodiment is a further improvement on the environmental wind tunnel humidity rapid adjustment system provided in Embodiment 1. The technical solution described in Embodiment 1 also belongs to this embodiment. The technical solution already described in Example 1 will not be described again.

[0050] The environmental wind tunnel humidity rapid adjustment system provided by this implementation also includes a small flow section, which is connected in parallel with the large flow section; the dehumidification section is connected in series with the large flow section and the small flow section; the outside air first enters the dehumidification section, and then enters Small flow segment or large flow segment. When the ambient wind tunnel needs to be adjusted to a cryogenic state, the outside air passes through the dehumidification section and then passes through the small flow section, so tha...

Embodiment 3

[0054] The environmental wind tunnel humidity rapid adjustment system provided in this embodiment is a further improvement on the environmental wind tunnel humidity rapid adjustment system provided in the second embodiment. The technical solution described in the second embodiment also belongs to this embodiment. The technical solution already described in Example 2 will not be described again.

[0055] In this embodiment, a quick adjustment system for humidity in an environmental wind tunnel is provided, including a quick adjustment section, one end of the quick adjustment section communicates with the environmental wind tunnel through a pipeline, and a fan is arranged on the pipeline, and the fan The pipeline at the air outlet is divided into a first branch and a second branch, and stop valves are arranged on the first branch and the second branch; the first branch takes part of the air from the ambient wind tunnel Part of the extracted air enters the dehumidification sectio...

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Abstract

The invention provides a system and method for quickly adjusting the humidity of an environment wind tunnel, and relates to the technical field of automobile environment wind tunnel systems. The system comprises a dehumidifying segment, a big-flow segment, and a quick adjustment segment. External air enters the dehumidifying segment at first, and then enters the big-flow segment. The external airis dehumidified by the dehumidifying segment, and then the external air dehumidified by the dehumidifying segment is cooled and dehumidified by the dehumidifying segment, or is heated, or heated and humidified. A first branch enables a part of air of the environment wind tunnel to be pumped outwards, and the pumped air serves as circulating air which enters the dehumidifying segment. A second branch enables a part of air of the environment wind tunnel to be pumped, and the pumped air serves as the circulating air which enters the big-flow segment. The system and method provided by the invention alleviate the technical problems in the prior art that an adjustment system is slow in adjustment speed and is low in adjustment precision when the temperature and humidity of the environment wind tunnel need variable working conditions.

Description

technical field [0001] The invention relates to the technical field of automobile environment wind tunnel systems, in particular to an environment wind tunnel humidity rapid adjustment system and an adjustment method. Background technique [0002] The automotive environment wind tunnel is a very important laboratory in the research and development of automobiles. It can simulate the real external climate environment, in which the temperature can simulate -40°C-60°C, the humidity can simulate the dew point temperature -45°C-relative humidity 95%, wind speed It can simulate 0-200km / h. The extremely strong climate simulation function of the automotive environment wind tunnel can provide the required temperature, humidity, wind speed, rain and snow environment and light environment for the car test, and the temperature, humidity, wind speed, rain and snow simulation, sunlight simulation and other functions must be simulated by the corresponding The system is complete. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/04G01M9/06
CPCG01M9/04G01M9/065
Inventor 谭文林周舟王勇席椿富周龙龚小东彭超鲍欢欢封泠雨陈军
Owner CHINA AUTOMOTIVE ENG RES INST