A Volumetric Flowmeter Auxiliary Starting System
A volumetric flowmeter and a technology for starting the system, which is applied in the field of volumetric flowmeters and can solve the problems of small flowmeters with flow rate of working medium
Active Publication Date: 2021-09-10
WUHAN UNIV OF TECH
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Problems solved by technology
[0005] In view of this, it is necessary to provide an auxiliary start-up system for volume flowmeters to solve the problem that the flow rate of the working medium is too small due to the large connection diameter and cannot generate enough impact force to push the rotor of the flowmeter to rotate
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[0029] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.
[0030] An embodiment of the present invention provides an auxiliary start-up system for a volume flowmeter, including a volume flowmeter, an electromagnet device, and an auxiliary start-up controller;
[0031] The volume flowmeter includes a counter and a body part, the counter is used to display the flow value passing through the volume flowmeter, and send the instantaneous flow value signal to the auxiliary start-up controller;
[0032] The electromagnet device is arranged in the inner shell of the body part, and is used to provide auxiliary power for the start-up of the volume flowmeter;
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The invention relates to an auxiliary start-up system for a volume flowmeter, which includes a volume flowmeter, an electromagnet device and an auxiliary start-up controller; the volume flowmeter includes a counter and a main body, and the counter is used to display the flow rate passing through the volume flowmeter value, and send the instantaneous flow value signal to the auxiliary start controller; the electromagnet device is arranged in the inner shell of the main body to provide auxiliary power for the start of the volume flowmeter; the auxiliary start controller, It is used to receive the instantaneous flow value signal, and control the start and stop of the electromagnet device and the magnitude of the energizing current according to the instantaneous flow value signal. It is realized that there is enough impact force to push the rotor of the flowmeter to rotate under the condition that the flow velocity of the working fluid is too small due to the excessively large connection caliber.
Description
technical field [0001] The invention relates to the technical field of volume flowmeters, in particular to an auxiliary starting system for volume flowmeters. Background technique [0002] At present, almost all volumetric flowmeters have requirements for the maximum allowable diameter of the pipe connected to the inlet of the volumetric flowmeter. Generally, the smaller the flow rate required to be measured, the lower the allowable diameter of the pipe connected to the inlet of the flowmeter is required to ensure sufficient working fluid. The flow velocity drives the rotor to rotate. If the diameter of the connecting inlet pipe is larger than the allowable diameter, the flow velocity in the pipe will be too small to generate enough impact force to push the flowmeter rotor to rotate, and eventually the flowmeter will not work properly. [0003] In the shipboard volumetric flowmeter, since the marine diesel engine often operates under heavy load conditions, the fuel system ma...
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IPC IPC(8): G01F15/02G01F1/28
CPCG01F1/28G01F15/028
Inventor 尹奇志陈兴赵世博
Owner WUHAN UNIV OF TECH