Flowmeter verification device and verification method thereof
A verification device and flowmeter technology, which is applied to measurement devices, test/calibration devices, liquid/fluid solid measurement, etc., can solve the problems of inaccurate measurement density, slow temperature changes, and large measurement errors, and achieves the effect of errors. The effect of few factors, accurate verification data, and accurate volume measurement
A verification device and flowmeter technology, which is applied to measurement devices, test/calibration devices, liquid/fluid solid measurement, etc., can solve the problems of inaccurate measurement density, slow temperature changes, and large measurement errors, and achieves the effect of errors. The effect of few factors, accurate verification data, and accurate volume measurement
CN107843315AInactive Publication Date: 2018-03-27ζη
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[0049] In order to illustrate the present invention in detail, the present invention will be further described in detail below in conjunction with specific implementation examples, but the described examples should not be interpreted in a limiting manner.
[0050] from figure 1 , image 3 It can be seen from the figure that the flowmeter verification device of the present invention includes volume tube I31, volume tube II29, working piston I3, working piston II8, synchronous motor I1, synchronous motor II10, pressure sensor I5, pressure sensor II11, photoelectric sensor I32, photoelectric Sensor II 30, discharge solenoid valve 27, level sensor 21, liquid storage tank 25, air solenoid valve 14, air compressor 13, buoyancy limiter 22, movable motor 23, tensile load sensor 17, weighing sensor 20, standard metal Sphere 19, data acquisition unit 40, distributed IO module 39, computer 36, serial port card 37, printer 38, wherein, the volume tube I31, volume tube II29 and the measur...
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Provided are a flowmeter verification device and a verification method thereof. The device comprises a volume pipe I31, a volume pipe II29, a working piston I and a working piston II which are arranged in the volume pipe I and the volume pipe II, a synchronous motor I and a synchronous motor II which are connected with the working piston I and the working piston II, a photoelectric sensor I and aphotoelectric sensor II which are installed on the volume pipe I, a liquid storage tank 25 connected with the volume pipe II, a data collection unit 40, a computer and the like, a flowmeter to be verified is installed at the two ends of the volume pipe I and the volume pipe II, liquid which is the same as liquid flowing through the flowmeter actually is injected into the volume pipe I, the synchronous motor I and the synchronous motor II drive the working piston I and the working piston II to work to trigger the photoelectric sensor I and the photoelectric sensor II, time for the liquid to flow through the flowmeter to be verified is read, then the liquid is discharged into the liquid storage tank so that the volume of the liquid which flows through the flowmeter to be verified can be measured, the normal flow which flows through the flowmeter to be verified is calculated, according to readout data of the flowmeter to be verified, a readout error is calculated, and according to the error, whether or not the flowmeter is qualified is judged. According to the device and the method, measurement is convenient, and the data is accurate.
Description
technical field [0001] The invention designs a flowmeter verification device and a verification method thereof. Background technique [0002] The commonly used methods for on-site verification of liquid volumetric flowmeters are the volumetric method (open structure of the container); the common methods for the verification of mass flowmeters are the volumetric method and the mass method. 1. The volumetric method is to use a standard measuring tank to measure the volume value of the liquid passing through the flowmeter and the time for the liquid to flow through the flowmeter to obtain the flow value; 2. The mass method needs to be used in conjunction with a density meter and measured using a standard density meter The density value of the medium flowing through the flowmeter and the time for the liquid to flow through the flowmeter, and then indirectly measure the volume of the medium flowing through the flowmeter according to the density formula, so as to obtain the flow v...
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Patent Timeline
27 Mar 2018
Publication
CN107843315A
- IPC
- G01F25/00
- CPC
- G01F25/00; G01F25/11; G01F25/14
- Inventors
- ζη