Novel vortex-street meter body structure

Abstract

A new type of vortex meter body structure, belonging to the technical field of flow measurement equipment, including a generator and a mounting seat; a vortex meter body structure is fixed on the mounting seat, and the vortex meter body structure consists of a flange, an upper cylinder and a triangular cylinder It is combined, the upper cylinder is connected to the bottom of the flange, the triangular cylinder is connected to the bottom of the upper cylinder, the triangular cylinder is provided with a diversion hole that runs through the surface of the two cylinders, and the diversion hole and the probe action hole form two-dimensional intersecting. The structure is simple and the working principle is clear. Compared with the traditional vortex flowmeter, the present invention does not need to stop the pipeline for a long time when the signal acquisition part fails or fails, and only needs to remove the probe parts, and use a same Replacement of parts, the whole meter can work immediately, almost has little influence on the process, has a very high interchangeability requirement, and the replacement is also very convenient. It can be quickly and comprehensively tested on the same standard pipe section, and the work efficiency has been greatly improved. improve.

Description

technical field [0001] The invention belongs to the technical field of flow measurement equipment, and relates to a vortex meter body with a new structure, in particular to a vortex meter body structure that can be easily disassembled from a flow measurement probe and a generator. Background technique [0002] The vortex flowmeter is researched and produced according to the principle of Karman vortex street, and it is mainly used for the flow measurement of industrial pipeline media fluids, such as gas, liquid, steam and other media. It is characterized by small pressure loss, large measuring range and high precision. When a cylinder with a non-streamlined section is inserted into the flowing fluid, two rows of staggered vortices will be generated on both sides of the rear of the cylinder. The signal detection element measures the separation frequency of the vortex, and then extracts, amplifies and The fluid flow velocity and instantaneous flow can be measured through analy...

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Problems solved by technology

[0003] The installation structure and use process of the existing vortex flowmeter mainly have the following deficiencies: the triangular column and the meter body are welded together, the detection element is inserted in the triangular column or downstream of the triangular column, and is fixed on the meter body by screws and must be inside External isolation needs to prevent the medium from leaking out; once the vortex flowmeter is installed on the pipeline, it must be dismantled from the pipeline as a whole once abnormal characteristics appear or when it comes to regular inspection, the workload is relatively large, and the offline time is also relatively long , which has a relatively large impact on production

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