Air volume measuring device

A technology for measuring device and air volume, which is applied in the direction of measuring device, measuring flow/mass flow, liquid/fluid solid measurement, etc., which can solve the problems of inaccurate flow statistics of the uniform velocity tube, untimely display of measured data, and insufficiently timely measured data. , to achieve the effect of optional range, cost-effective, novel and compact

Pending Publication Date: 2018-10-12
GUANDONG YIAN CITY CIVIL AIR DEFENSE ENG CO LTD
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AI Technical Summary

Problems solved by technology

[0004] However, when the existing averaging tube flowmeter is designed, it is directly electrically connected to the display instrument through the transmitter, resulting in the displayed measurement data not being timely enough, and the monitoring efficiency is low
Moreover, the existing uniform velocity tube flowmeters only use one total pressure hole and one detection hole, because the flow velocity distribution in the general pipeline is not uniform, so the measurement results are not accurate enough
[0005] Aiming at the problems of untimely measurement data display and inaccurate flow statistics of the uniform velocity tube in the prior art, it is necessary to provide a simple structure, highly intelligent, high-precision air volume measurement device

Method used

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Embodiment Construction

[0020] Such as figure 1 As shown in , an air flow measurement device provided by an embodiment of the present invention includes a measuring body 1 and an intelligent display 2, and also includes a flow totalizer 3, and the measurement body 1 is electrically connected to the flow totalizer 3 , the flow totalizer 3 is electrically connected to the smart display 2 .

[0021] Such as figure 1 , the airflow enters from the air inlet through the valve body 5 , enters different total pressure holes 111 , and is sent to the positive pressure chamber of the transmitter 12 through the high-pressure joint. There are one or more detection holes in the middle of the back of the measuring and control rod 11, which represent the static pressure of the entire section. The static pressure is led to the negative pressure chamber of the transmitter 12 by the low pressure joint through the static pressure outlet pipe, and the positive and negative pressure chambers are measured. The square of ...

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Abstract

An air volume measuring device includes a measuring body and an intelligent display instrument. The air volume measuring device also comprises a flow totalizer. The measuring body is electrically connected with the flow totalizer, and the flow totalizer is electrically connected with the intelligent display instrument. Measurement results can be displayed in real time, and the adaptability to windpressure and air volume is high. By forming a plurality of total pressure holes and detection holes, measurement accuracy and measurement efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of fluid measurement, in particular to an air flow measurement device. Background technique [0002] In the field of fluid measurement, especially air volume measurement, an equal velocity tube flowmeter is often used. The average velocity tube flowmeter adopts the measurement principle of the Pitot tube, by measuring the pressure difference formed between the full pressure upstream of the blocking body and the static pressure downstream, and calculating according to the Bernoulli equation, so as to achieve the purpose of measuring flow. [0003] At present, the average velocity tube flowmeter has become an ideal product to replace the orifice flowmeter because of its advantages such as easy installation, small pressure loss, high strength, no influence of wear, and no leakage. The existing averaging tube flowmeter can be widely used in the flow measurement of blast furnace gas, compressed air, steam and ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/36
CPCG01F1/363
Inventor 白金仓李建民石林文贺帅峰肖天石维华汪健张锋刘键
Owner GUANDONG YIAN CITY CIVIL AIR DEFENSE ENG CO LTD
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