Electric swing nozzle type small commutator and its water flow calibration device
A technology of oscillating nozzles and calibration devices, which is used in testing/calibration devices, measuring devices, liquid/fluid solid measurement, etc. The effect of shortening the time difference and adjustable water jet angle
Active Publication Date: 2021-05-11
BEIJING ZHENXING METROLOGY & TEST INST
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Problems solved by technology
[0004] The present invention provides a small electric swing nozzle commutator and its water flow calibration device, which can solve the problems in the prior art such as the asymmetry of the commutator's commutation position due to different commutation forces and manufacturing reasons. The commutator commutation time difference caused by the small flow calibration is large, the jet flow of the nozzle is uneven, water splashes, the water distributor overflows, hangs water drops and other technical problems, which improves the accuracy of the water flow calibration device
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[0028] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0029] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit t...
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The invention provides a small electric swing nozzle commutator and its water flow calibrating device. The commutator includes a pipe shaft, a swing nozzle assembly, a first and a second electromagnetic assembly, a first and a second adjustable Assemblies and water separators, the first and second electromagnetic assemblies are connected to both ends of the swing nozzle assembly, the first and second adjustable assemblies are used to adjust the rotation angle of the swing nozzle assembly around the first and second directions, and the water separator It includes a first water pipe and a second water pipe. When the swing nozzle assembly rotates around the first direction, the swing nozzle assembly communicates with the second water pipe. When the swing nozzle assembly rotates around the second direction, the swing nozzle assembly Connect with the first water pipe. The technical scheme of the present invention is applied to solve the problems in the prior art, such as large commutator reversing time difference, uneven nozzle jet flow, water splashing, water distributor overflowing, hanging water drops, etc., when calibrating small flow rates, and improves water flow calibration. device accuracy.
Description
technical field [0001] The invention relates to the technical field of flow measurement, in particular to an electric swing nozzle type small commutator and a water flow calibrating device thereof. Background technique [0002] The water flow calibration device is mainly used to provide the value transfer service for the flowmeter, and the commutator is a main component of the traditional water flow calibration device, and its performance affects the accuracy of the water flow calibration device. [0003] The commutator is mainly used in the water flow calibration device to change the flow direction at the outlet of the pipeline. There are two main structures: the commutator with a movable nozzle structure, and the commutator with a movable interceptor. When each pipeline of the water flow calibration device is connected to the commutator, the inner diameter of the pipeline is generally Above, when the inner diameter of the pipe becomes smaller ( (below), the flow in the...
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IPC IPC(8): G01F25/00
CPCG01F25/10
Inventor 宋志强杨水旺黄相华谭逢喜李启明
Owner BEIJING ZHENXING METROLOGY & TEST INST