Superhigh temperature flowmeter with protecting function

Abstract

The invention provides a superhigh temperature flowmeter with a protecting function. The flowmeter comprises a measuring tube and an integrating meter connected with the measuring tube, wherein the measuring tube is connected with the integrating meter through a connecting base, an air chamber base and a transition connecting pipe which are connected from bottom to top in sequence, and a sensor is arranged in the air chamber base. The flowmeter further comprises a protecting structure connected with the air chamber base, wherein the protecting structure comprises a round steel pipe, an external thread matched with an internal thread in the air chamber base is machined at one end of the round steel pipe, and a boss ring is formed at the other end of the round steel pipe in an integrated mode; the end, away from the round steel pipe, of the boss ring is connected with a corrugated pipe, a connecting ring is arranged at the end, connected with the boss ring, of the corrugated pipe, and a welding port welded to a target rod of the sensor is formed in the other end of the corrugated pipe; cool fin sets are arranged on the outer wall of the connecting base and the outer wall of the transition connecting pipe respectively. By the adoption of the flowmeter, temperature and impurity insulation is achieved, and the sensitivity and service life of the sensor are not affected. By arranging the cooling fin sets, metering precision is higher, and stability is higher.

Description

technical field [0001] The invention relates to a flow meter, in particular to an ultra-high temperature flow meter with protection function. Background technique [0002] Existing flowmeters used for fluid measurement usually do not have a protective structure, but for some industrial equipment that requires high measurement accuracy, in order to improve the measurement accuracy of fluid flow, the method of inverting the flowmeter or adding heat sink groups is also used. . However, the sensor is always in contact with the medium, which is prone to blockage and jamming, resulting in inability to measure and low measurement accuracy. [0003] In addition, the measurement accuracy of the existing high-temperature fluid medium is low, mainly due to the relatively low temperature borne by the sensor. In the high temperature state, it is easy to produce zero point drift or damage, resulting in low measurement accuracy and inability to measure. Contents of the invention [00...

AI Technical Summary

Problems solved by technology

However, the sensor is always in contact with the medium, which is prone to blockage and jamming, resulting in inability to measure and low measurement accuracy

[0003] In addition, the measurement accuracy of the existing high-temperature fluid medium is low, mainly because the temperature of the sensor is relatively low

Zero point drift or damage is likely to occur under high temperature conditions, resulting in low measurement accuracy and inability to measure

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