Closed type open commutator

A commutator, closed technology, applied in the direction of instruments, measuring devices, test/calibration devices, etc., can solve the problems of no open state, inaccurate weighing, etc., achieve stable flow state, stable commutation process, and avoid splashing The effect of water and internal leakage

Active Publication Date: 2013-12-11
NAT INST OF METROLOGY CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is to realize the airtightness of its structure under the premise of ensuring its reversing performance, so that the commutator does not have an open state communicating with the atmosphere before and after the commutation and during the reversing process, so as to avoid the passage of hot water. Inaccurate weighing due to outward evaporation of the commutator

Method used

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  • Closed type open commutator
  • Closed type open commutator
  • Closed type open commutator

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Embodiment Construction

[0018] In order to facilitate the understanding of the present invention, the embodiments of the present invention will be described below in conjunction with the accompanying drawings. Those skilled in the art should understand that the following description is only for the convenience of explaining the present invention, not as a specific limitation on its scope.

[0019] like figure 1 Shown is the sealed open commutator of the present invention, the open commutator includes a control box 1, the control box 1 includes components that provide power for the commutation and control components that control the commutation, The control box 1 is located at the uppermost part of the steering gear. According to the external control signal, the control box adjusts the flow direction of the liquid in the commutator to realize the commutation; There are a number of nozzles evenly distributed on the disk on the rotating disk, and the liquid flows out from the nozzles, preferably, there ...

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Abstract

The invention discloses a closed type open commutator which comprises a control box provided with a component for supplying power for commutation, a rotating disk which is positioned below the control box and is provided with a plurality of nozzles, a floating disk which is matched with the rotating disk and is provided with diversion holes corresponding to the nozzles, and a water feeding pipe positioned at the center of the open commutator, wherein a diversion cone is arranged above the water feeding pipe. The commutator disclosed by the invention has a steady commutation process and is high in symmetry and repetitiveness; the flowing state of fluid is stable and symmetric as much as possible at outlets of the nozzles; water sputtering and internal leakage of the commutator are avoided, and interference caused by the commutation process on the flow of a flow device system is also avoided.

Description

technical field [0001] The invention relates to the field of flow measurement, in particular to an open commutator used in a flow measurement standard device. The open commutator has a closed structure capable of rapidly switching the flow direction of liquid. Background technique [0002] The flow standard device is a standard device for transferring the value of the flow meter. It is mainly used to test the accuracy, repeatability, linearity, stability, etc. of the flow meter. With the development of industrialization and pipeline, the proportion of flow meters in the entire instrument industry is increasing, and the role of flow standard devices is becoming more and more prominent. [0003] The commutator is the core component of a high-level flow device, and the uncertainty of the commutator is one of the main sources of the uncertainty of the flow device, and its design level directly affects the accuracy of flow measurement. The working principle of the commutator is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F25/00
Inventor 王池孟涛侯学伟胡鹤鸣
Owner NAT INST OF METROLOGY CHINA
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