Wind speed measuring device, air valve and air volume adjusting system

A wind speed measurement and air valve technology, applied to valve devices, devices using electric/magnetic methods, and detecting the direction of fluid flow by measuring pressure difference, which can solve the problem of difficulty in obtaining the real wind speed of the air duct stably, anti-fluctuation, and anti-interference. Poor ability, inability to accurately adjust the air volume of the air duct, etc., to achieve the effect of strong anti-fluctuation, strong anti-interference, high measurement and control accuracy

Active Publication Date: 2018-11-20
E3 GREEN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, with the movement of the vortex airflow, the wind speed value measured at the same measuring point will have large fluctuations in a short period of time, which may be considered as noise by the control system and filtered out by the filter
[0004] Therefore, the wind speed measuring device in the prior art has poor anti-fluctuation and anti-interference ability, and it is difficult to stably obtain the real wind speed in the air duct, which leads to the inability to accurately adjust the air volume in the air duct

Method used

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  • Wind speed measuring device, air valve and air volume adjusting system
  • Wind speed measuring device, air valve and air volume adjusting system
  • Wind speed measuring device, air valve and air volume adjusting system

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Experimental program
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Effect test

Embodiment 1

[0083] Please refer to Figure 7a , in this embodiment, the wind speed measuring device 100 communicates with the air duct 200, the wind speed measuring device 100 has a housing 120, the housing 120 has a cylindrical inner wall, and the cylindrical inner wall defines a circular ventilation section with a diameter of D=200mm S. Two impeller-type anemometers 110 are arranged in the casing 120, and the distances between the center of each impeller-type anemometer 110 and the central axis of the casing 120 are respectively: anemometer 1 is R 1 =52mm, anemometer 2 is R 2 = 59.5 mm.

[0084] The actual wind speed in the air duct is set to be 5m / s (when the wind speed measuring device 100 is tested, the actual wind speed in the air duct can be set by the wind generating device), and the wind speed values ​​measured by each impeller anemometer 110 are in turn: 4.9669m / s, 5.0327m / s, taking the average value of the above wind speed values, the final measured wind speed value is 4.999...

Embodiment 2

[0086] Please refer to Figure 7b , in this embodiment, the wind speed measuring device 100 communicates with the air duct 200, the wind speed measuring device 100 housing 120, the housing 120 has a cylindrical inner wall, and the cylindrical inner wall defines a circular ventilation section S with a diameter D=250mm . Three impeller-type anemometers 110 are arranged in the casing 120, and the distances from the center of each impeller-type anemometer 110 to the central axis of the air duct 200 are respectively: anemometer 1 is R 1 =52mm, anemometer 2 is R 2 =63mm, anemometer 3 is R 3 =84.5mm.

[0087]The actual wind speed in the air duct is set to 5m / s, and the wind speed values ​​measured by each impeller anemometer 110 are 4.86m / s, 4.97m / s, and 5.12m / s in turn, and the average value of the above wind speed values ​​is taken to finally obtain The measured wind speed is 4.98m / s. That is, using the wind speed measurement device 100 provided in this embodiment, the differe...

Embodiment 3

[0089] Please refer to Figure 7c , in this embodiment, the wind speed measuring device 100 communicates with the air duct 200, the wind speed measuring device 100 housing 120, the housing 120 has a cylindrical inner wall, and the cylindrical inner wall defines a circular ventilation section S with a diameter D=500mm . Five impeller anemometers 110 are arranged in the casing 120, and the distances between the center of each impeller anemometer 110 and the central axis of the casing 120 are respectively: anemometer 1 is R 1 =52mm, anemometer 2 is R 2 =85mm, anemometer 3 is R 3 =130mm, anemometer 4 is R 4 =169mm, anemometer 5 is R 5 =208mm.

[0090] The actual wind speed in the air duct is set to be 5m / s, and the wind speed values ​​measured by each impeller anemometer 110 are 4.67m / s, 4.91m / s, 5.05m / s, 5.15m / s, 5.19m / s, Taking the average value of the above wind speed values, the final measured wind speed value is 4.99m / s. That is, using the wind speed measuring device 1...

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Abstract

The invention provides a wind speed measuring device, an air valve and an air volume adjusting system. The wind speed measuring device communicated with an air duct can be used for measuring the windspeed in the circular ventilation section with the diameter D in the air duct, the wind speed measuring device includes at least one anemometer, the anemometer is an impeller anemometer, and a rotating surface of an impeller of the impeller anemometer can be disposed perpendicular to the central axis of the circular ventilation section. The wind speed measuring device is advantaged in that the impeller anemometer is utilized to measure the wind speed in the air duct, the average wind speed through the rotating surface of the impeller is measured, the effect of the vortex flow can be avoided, relatively large fluctuation in the short time period can be avoided, compared with a point measurement method in the prior art, the wind speed measuring device has strong anti-wave, anti-corrosion andanti-interference abilities and higher measurement accuracy.

Description

technical field [0001] The invention relates to the field of wind speed measurement, in particular to an wind speed measurement device, a damper and an air volume regulating system. Background technique [0002] The air volume adjustment system is widely used in construction, machinery and other fields to adjust the ventilation volume inside the building or mechanical equipment, so as to adjust the temperature, humidity, air pressure, etc. of the internal space of the building or mechanical equipment to a favorable state. For example, it is installed in the building structure to ensure the safety and comfort of the indoor personnel; it is installed in the mechanical equipment to ensure the stable operation of the equipment, or to ensure the quality of the processed products, etc. Among them, in some occasions, there are very high requirements for the adjustment accuracy of the air volume adjustment system, such as clean workshops, hospital operating rooms, etc., it is necess...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P3/42G01F1/46F16K37/00
CPCF16K37/0091G01F1/46G01P3/42
Inventor 阮红正唐光野卢丙利
Owner E3 GREEN TECH CO LTD
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