Down-flow rotameter
A flow meter and flow rotor technology, applied in the field of pipeline fluid flow measurement, can solve the problems of increasing the installation space of experimental devices and engineering equipment, increasing pipeline resistance, and increasing pipeline length, so as to reduce installation space, reduce pipeline resistance, and shorten pipelines The effect of length
Inactive Publication Date: 2013-11-06
ANHUI UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
In this way, the length of the pipeline is increased, the resistance of the pipeline is increased, and the installation space of the experimental device and engineering equipment is increased.
Method used
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[0014] The present invention will be further described below in conjunction with accompanying drawing.
[0015] The picture shows a downflow rotameter. It mainly includes a rotor 1, a tapered pipe 2, a casing 3, an inlet pipe 4, and an outlet pipe 5. The rotor 1 is placed in the conical tube 2, and adopts a hollow or low-density rotor whose buoyancy is greater than gravity; the conical tube 2 is installed upside down in the shell 3, and the diameter of the conical tube 2 gradually increases from top to bottom. There are indicating scales, and the scales increase sequentially from top to bottom; the inlet pipe 4 and the outlet pipe 5 communicate with the tapered pipe 2 and are installed on the shell together. The inlet pipe 4 of the downward flow rotameter is connected to the upper downward flow pipe, and the outlet pipe 5 is connected to the lower downward flow pipe, so as to directly measure the flow rate of the fluid to be measured in the downward flow pipe.
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The invention provides a down-flow rotameter, which belongs to the technical field of flow measurement of fluids in pipelines. The rotameter comprises a rotor, a conical pipe, a housing, an inlet pipe and an outlet pipe, wherein the rotor is arranged in the conical pipe, and the rotor is of a hollow or low-density rotor, wherein the buoyancy of the rotor is greater than gravity; the conical pipe is mounted in the housing, the conical pipe is mounted in an inverted manner, and the diameter of the conical pipe is small at top and big at bottom; and the inlet pipe is positioned above the housing and communicated with the conical pipe, the outlet pipe is positioned below the housing and communicated with the conical pipe, and the measured fluid flows by in the conical pipe from the top to the bottom. The invention provides the rotameter which is directly mounted on a down-flow pipeline for flow measurement and can make up for a deficiency that a traditional up-flow rotameter can only directly measure the flow rate of up-flow and can not directly measure the flow rate of down-flow. The effects of shortening the length of the pipeline, reducing the resistance of the pipeline and reducing mounting space can be realized by using the down-flow rotameter.
Description
technical field [0001] The invention belongs to the technical field of pipeline fluid flow measurement, in particular to a downward flow rotameter, which is especially suitable for the measurement of downward flow pipeline fluid flow. Background technique [0002] At present, the rotameters sold and widely used in the market all use upward flow rotameters in which the fluid flows upwards. The principle is that the force, viscous friction, and The buoyancy is balanced with the gravity of the downward rotor, so that the rotor is in a suspended state; the rotor moves up with the increase of the measured fluid flow rate, and as the annular flow area between the rotor and the conical tube increases, the rotor is in a new balance location, thus indicating the size of the flow. When using this upward flow rotameter to measure the flow of the downward flow pipe in engineering and experiments, it is necessary to add a 180-degree elbow to change the downward flow into an upward flow,...
Claims
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IPC IPC(8): G01F1/52
Inventor 张新喜潘芳慧汪明明丁磊
Owner ANHUI UNIVERSITY OF TECHNOLOGY