Three-hole balance flow meter and application

Abstract

The invention discloses a three-hole balance flow meter and application. The three-hole balance flow meter comprises a front measuring pipe, a rear measuring pipe and a throttling element located between the front measuring pipe and the rear measuring pipe. The front measuring pipe, the rear measuring pipe and the throttling element are integrally processed by the same material. Three throttling holes are formed in the throttling element. A first pressure tapping hole is formed in the wall of the front measuring pipe; and a first pressure tapping pipe is led out from the first pressure tappinghole. A second pressure tapping hole is formed in each throttling hole; and a second pressure tapping pipe is led out from the second pressure tapping hole. The second pressure tapping pipes corresponding to the throttling holes are communicated with one another. The three-hole balance flow meter is simple in structure, high in precision, safe, stable, easy to popularize and particularly suitablefor high-temperature and high-pressure occasions. And meanwhile, a stable differential pressure value is obtained, and meanwhile, the mounting requirement on a straight pipe section is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of flowmeters, and in particular relates to a three-hole balanced flowmeter and its application. Background technique [0002] As a long-established flowmeter, differential pressure flowmeter occupies a very important share in the field of industrial measurement, and there are various types. However, most types have single structure, low precision, high requirements for straight pipe sections, large pressure loss, serious energy consumption, and low safety. [0003] With the development of industry, the requirements for flowmeter measurement are getting higher and higher, and higher requirements are put forward for safety and stability. The relevant boiler regulations even stipulate that the flowmeter used for steam measurement in the main pipeline of the boiler is not allowed to have girth welds. Existing flow meter types cannot meet the measurement needs. Triangle is the most stable structure in nature. ...

AI Technical Summary

Problems solved by technology

However, most types have single structure, low precision, high requirements for straight pipe sections, large pressure loss, serious energy consumption, and low safety

[0003] With the development of industry, the requirements for flowmeter measurement are getting higher and higher, and higher requirements are put forward for safety and stability. The relevant boiler regulations even stipulate that the flowmeter used for steam measurement in the main pipeline of the boiler is not allowed to have girth welds. Existing flowmeter types cannot meet measurement needs

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