Novel vortex-street meter body structure

Abstract

The invention discloses a novel vortex-street meter body structure, and belongs to the technical field of flow measurement devices. The novel vortex-street meter body structure comprises a generating body and an installing base. The vortex-street meter body structure is fixedly arranged on the installing base, and is composed of a flange, an upper cylinder and triangular cylinder bodies, the upper cylinder is connected to the bottom of the flange, the triangular cylinder bodies are connected to the bottom of the upper cylinder, guiding holes penetrating through the surfaces of the two cylinder bodies are formed in the triangular cylinder bodies, and two vertical intersection parts are formed through the guiding holes and a probe action hole. The novel vortex-street meter body structure is simple and clear in working principle; compared with a traditional vortex street flow meter, according to the novel vortex-street meter body structure, when a signal collection part faults or fails, a pipe does not need to stop running for a long time, a probe part is only disassembled and is replaced with a same part, a whole meter can work, the influence on the technology is almost small, the extremely-high interchangeability requirements are met, and replacement is also extremely convenient; rapid and comprehensive inspection can be carried out on a same-standard pipe section, and the working efficiency is improved to a large degree.

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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