Dual-curve-type balanced cone-type flow meter
A flowmeter and balance technology, applied in the field of hyperbolic balanced cone flowmeter, can solve the problems of flowmeter stability, repeatability and accuracy, inaccurate measurement, flow fluctuation, etc., to reduce the loss of kinetic energy and accuracy High, stable flow field effect
Inactive Publication Date: 2013-03-27
银川融神威自动化仪表厂(有限公司)
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Problems solved by technology
[0002] In the flow measurement automation instrument industry, there are only conventional V-cone flowmeters on the market at present. Because the cantilevered front and rear support rods of the V-cone flowmeter may cause the cone to fall off, resulting in inaccurate measurement, and because the V-cone flowmeter The conical surface of the throttling element is a single curved surface, which is prone to flow fluctuations caused by fluid crawling, which makes the stability, repeatability and accuracy of the flowmeter insufficient; there is no solution to this problem at present
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[0014] A kind of hyperbolic balanced cone flowmeter, including a measuring tube 1 with a flange 3 at one end, such as figure 1 and 2 As shown: a throttling element 2 with a hyperbolic cone 5 is fitted in the above-mentioned measuring tube 1 .
[0015] like image 3 As shown: balance holes 4 are evenly distributed in the radial direction of the end surface of the hyperbolic cone 5 of the throttling element 2 .
[0016] The balanced cone flowmeter provided by the invention is a differential pressure flow measurement sensor, which is used in conjunction with differential pressure transmitters and the like. It is mainly used to measure the flow rate of fluid flowing through the pipeline. When the fluid flows through the throttling part 2, the stream shrinks, which increases the fluid velocity and reduces the pressure, and produces a pressure drop before and after the throttling part 2, that is, a differential pressure. This differential pressure has a certain relationship with ...
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The invention relates to a flow measurement automation meter, and in particular relates to a dual-curve-type balanced cone-type flow meter which comprises a measurement pipe, wherein one end of the measurement pipe is matched with a flange. The dual-curve-type balanced cone-type flow meter is characterized in that a dual-curve-surface throttling element is matched in the measurement pipe; and balanced holes are radially and uniformly distributed in the end surface of a dual-curve conical surface body of the throttling element. The dual-curve-type balanced cone-type flow meter provided by the invention is unique in structure, good in stability and repeatability, high in measurement accuracy and rapid in pressure recovery, and permanent pressure loss is reduced.
Description
technical field [0001] The invention relates to a flow measurement automatic instrument, in particular to a hyperbolic balance cone flowmeter. Background technique [0002] In the flow measurement automation instrument industry, there are only conventional V-cone flowmeters on the market at present. Because the cantilevered front and rear support rods of the V-cone flowmeter may cause the cone to fall off, resulting in inaccurate measurement, and because the V-cone flowmeter The conical surface of the throttling element is a single curved surface, which is prone to flow fluctuations caused by fluid crawling, which makes the stability, repeatability and accuracy of the flowmeter insufficient; there is no solution to this problem at present. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a hyperbolic balanced cone flowmeter with unique structure, good stability, good repeatabilit...
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Inventor 唐力南
Owner 银川融神威自动化仪表厂(有限公司)