Novel mine local air volume and air pressure measuring device for ventilator
A technology for measuring device and fan air volume, which is applied in the direction of measuring device, detecting fluid flow by measuring pressure difference, volume/mass flow generated by mechanical effect, etc., which can solve the problems of inapplicable measurement accuracy, large measurement error of wind meter, and high instrument cost, etc. question
Inactive Publication Date: 2018-06-15
ANHUI UNIV OF SCI & TECH
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Problems solved by technology
The measurement error of the wind meter is large, and the measurement results are inaccurate, which cannot be applied to the case of high measurement accuracy.
The accuracy of pitot tube and sensor measurement is high, but the cost of the instrument is high, and pitot tube measurement requires multiple measurements
Method used
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[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments and illustrations.
[0017] Figure 1 to Figure 4 As shown, a new type of air volume and air pressure measurement device for mine local fans, including circular air cylinder, cross circular hollow tube, capillary bend, rubber tube, three-way glass tube, three-way glass pavilion and U-shaped pressure measurement The circular air cylinder is connected with the cross circular hollow pipe, the end of the cross circular hollow pipe is threaded to one end of the externally threaded pipe, the externally threaded pipe passes through the hole in the wall of the circular air cylinder, and the externally threaded pipe It is fixedly connected with the internal thread locking ring on the circular air cylinder, and the capillary elbow is fixedly connected on ...
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Abstract
The invention discloses a novel mine local air volume and air pressure measuring device for a ventilator. The device comprises a circular air duct, a cross circular hollow pipe, capillary bent pipes,a rubber pipe, three-way glass pipes, a three-port glass pipe and a U-shaped manometer; the device is characterized in that the circular air duct is connected with the cross circular hollow pipe, thetail end of the circular hollow pipe is in threaded connection with one end of an outer threaded pipe, the outer threaded pipe penetrates through a hole in the wall of the circular air duct, the outerthreaded pipe and an inner threaded locking ring are fixedly connected to the circular air duct, the capillary bent pipes are fixedly connected to the cross circular hollow pipe, a port, in the crosscircular hollow pipe, of each capillary bent pipe is fixedly connected to one end of a rubber hose, the other ends of the rubber hoses are fixedly connected with the three-way glass pipes, and the three-port glass pipe is fixedly connected to one end of the U-shaped manometer.
Description
technical field [0001] The invention relates to the field of measuring devices for wind pressure and air volume of local ventilators, in particular to a novel measuring device for wind pressure and air volume of local ventilators used in mines. Background technique [0002] At present, the methods for measuring wind pressure and air volume of mine ventilators mainly include pitot tube measurement method, wind meter measurement method and sensor measurement method. Pitot tube device, wind meter device and sensor device are used to measure the wind pressure and air volume of mine ventilator. The measurement error of the wind meter is large, and the measurement result is inaccurate, so it cannot be applied to the case of high measurement accuracy. Pitot tube and sensor measurement have higher accuracy but higher instrument cost, and pitot tube measurement requires multiple measurements. [0003] With the development of safe and efficient new coal mining technology, the air mi...
Claims
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IPC IPC(8): G01F1/48G01L19/00
CPCG01F1/48G01L19/00
Inventor 曹晓代以吴宪崔亚男
Owner ANHUI UNIV OF SCI & TECH