Title:
AIR SPEED MEASUREMENT DEVICE, AIR VALVE AND AIR VOLUME ADJUSTMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/000531
Kind Code:
A1
Abstract:
An air speed measurement device (100), an air valve (300) and an air volume adjustment system (400), the air speed measurement device (100), when in communication with an air duct (200), being able to measure the air speed through a circular ventilation cross-section S with a diameter D in the air duct (200). The air speed measurement device (100) comprises at least one anemoscope, the anemoscope being an impeller anemoscope (110); the rotation plane of an impeller of the impeller anemoscope (110) can be configured to be perpendicular to the central axis of the circular ventilation cross-section S. The present invention provides the air speed measurement device (100), the air valve (300) and the air volume adjustment system (400), the air speed in the air duct (200) is measured by means of the impeller anemoscope (110), and specifically, the average air speed passing through the impeller rotation plane is measured, such that the influence of a swirling air flow can be avoided, and a large fluctuation would not be caused during a short time period; and compared with the point measurement method in the prior art, the present invention has strong anti-fluctuation, anti-corrosion and anti-interference capabilities, being able to achieve higher measurement accuracy.
Inventors:
RUAN HONGZHENG (CN)
TANG GUANGYE (US)
LU BINGLI (CN)
TANG GUANGYE (US)
LU BINGLI (CN)
Application Number:
PCT/CN2018/096047
Publication Date:
January 02, 2020
Filing Date:
July 18, 2018
Export Citation:
Assignee:
E3 GREEN TECH CO LTD (CN)
International Classes:
G01P3/42; F16K37/00; G01F1/46
Foreign References:
| CN206036337U | 2017-03-22 | |||
| CN202221432U | 2012-05-16 | |||
| CN201293426Y | 2009-08-19 | |||
| CN205384289U | 2016-07-13 | |||
| DE19930814C2 | 2002-06-13 |
Other References:
MA HUAN: "Research and Simulation Analysis on Airflow Measuring Method of Mine Ventilator", CHINESE MASTER'S THESES FULL-TEXT DATABASE, 15 January 2018 (2018-01-15), ISSN: 1674-0246
Attorney, Agent or Firm:
WATSON & BAND INTELLECTUAL PROPERTY AGENT LTD. (CN)
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