Small-caliber double-range elbow flow sensor and flowmeter
A flow sensor, dual-range technology, used in volume flow measurement devices, fluid flow detection by measuring differential pressure, volume/mass flow generated by mechanical effects, etc., can solve problems such as limited application, small measurement range, and increased measurement error. , to achieve the effect of expanding the measurement range, reducing the measurement error and wide application prospects
Inactive Publication Date: 2012-11-07
程星翼
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Problems solved by technology
[0003] (1), the measurement range is small, which limits its application
[0004] (2) The measurement error increases greatly when the flow rate changes greatly
Method used
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[0029] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0030] Such as figure 1 , 2 Shown: the small-diameter dual-range elbow flow sensor, which includes the first elbow flow sensor 1000 and the second elbow flow sensor 2000, the inlet section of the first elbow flow sensor 1000 and the second elbow flow sensor 2000 The inlet section is connected in parallel, and the outlet section of the first elbow flow sensor 1000 is connected in parallel with the outlet section of the second elbow flow sensor 2000; the first elbow flow sensor 1000 and the second elbow flow sensor 2000 have the same shape, and they are both Including the cylindrical air inlet pipe 1 and the air outlet pipe 2 with the inner passages of the same diameter, the air inlet pipe 1 and the air outlet pipe 2 are smoothly connected by an arc-shaped elbow 3 with a 1 / 4 circumference, and the inside of the elbow 3 The cross section of the channel is circul...
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The invention discloses a small-caliber double-range elbow flow sensor and a flowmeter. An inlet section of a first elbow flow sensor is connected with an inlet section of a second elbow flow sensor in parallel; an outlet section of the first elbow flow sensor is connected with the outlet section of the second elbow flow sensor in parallel; the first elbow flow sensor and the second elbow flow sensor have the same shape; the pipe diameter of an air inlet pipe and an air outlet pipe of the first elbow flow sensor are more than that of an air inlet pipe and an air outlet pipe of the second elbow flow sensor; and a solenoid valve is arranged on the air inlet pipe or the air outlet pipe corresponding to the first elbow flow sensor. The small-caliber double-range elbow flow sensor and the flowmeter overcome the defects that the measuring range of a small-caliber elbow flow sensor processed by a plastic molding process is small and the metering error is greatly increased under the conditionof great flow change. By the small-caliber double-range elbow flow sensor and the flowmeter, the measuring range of the elbow flow sensor is enlarged by 1 to 10 times; the metering error is greatly reduced; and the application prospect is much wider.
Description
technical field [0001] The invention discloses a small-diameter double-range elbow flow sensor, and the invention also discloses a small-diameter double-range elbow flowmeter. Background technique [0002] At present, some people have invented the small-diameter elbow flow sensor processed by plastic molding technology. Although the dead zone of precision CNC machine tools for small-diameter elbow flow sensor processing has been solved, the production of the elbow flow sensor has high efficiency and high precision. , high consistency, high finish, low consumption, high complexity, low price, and a wide range of plastic choices for production have broad prospects, but it still has defects: [0003] (1) The measuring range is small, which limits its application. [0004] (2) When the flow rate changes greatly, the measurement error will increase greatly. Contents of the invention [0005] One of the purposes of the present invention is to overcome the deficiencies in the p...
Claims
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IPC IPC(8): G01F7/00G01F1/34
Inventor 程星翼
Owner 程星翼