Mechatronics differential pressure gauge

By introducing a combination of a protective box, a liquid chamber, an electric heating rod and a cooling rod into the differential pressure gauge, the problem of measurement error caused by temperature changes is solved, and stable measurement and extended service life of the differential pressure gauge are achieved.

CN223346317UActive Publication Date: 2025-09-16庞玉丽
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Patent Information

Application Number
CN202422623045.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-09-16
Estimated Expiration
2034-10-30

AI Technical Summary

Technical Problem

The existing differential pressure gauge is prone to measurement errors when the temperature changes, and the protective shell cannot adjust the ambient temperature.

Method used

A mechatronic differential pressure gauge was designed, which included a protective box, a metal conduction plate, a liquid chamber, an electric heating rod, and a cooling rod. The medium water was transported through a delivery pipe, and the water temperature in the liquid chamber was monitored by a temperature probe and regulated by the electric heating rod and the cooling rod to keep the ambient temperature of the differential pressure gauge body stable.

Benefits of technology

Effectively maintain the ambient temperature of the differential pressure gauge body, reduce the impact of temperature changes on measurement results, reduce errors and extend service life.

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Abstract

The utility model discloses a mechanical-electrical integration differential pressure gauge, which relates to the differential pressure measurement technology and comprises a protection box, a differential pressure gauge main body is arranged inside the protection box, a metal conduction plate is arranged inside the protection box and outside the differential pressure gauge main body, and the metal conduction plate is fixedly connected with the protection box. A liquid cavity is formed between the interior of the protection box and the metal conduction plate, conveying pipes are fixedly installed at the positions, close to the lower ends, of the two sides of the protection box, a temperature probe is fixedly installed in the middle of the top of the protection box, and an electric heating rod is fixedly installed at the position, close to one side, of the top of the protection box; and a refrigeration rod is fixedly mounted on the other side of the top of the protection box in a penetrating manner. The temperature of the environment where the differential pressure gauge main body is located can be reasonably adjusted according to a medium measured by the differential pressure gauge main body, and the influence of temperature change on the measurement result of the differential pressure gauge main body is reduced.
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