Magnetic differential pressure gauge and use method thereof

Abstract

The invention discloses a magnetic differential pressure gauge and a use method thereof. The magnetic differential pressure gauge comprises a gauge outfit and a measurement component, the gauge outfitis provided with a front gauge shell, a back gauge shell and a dial plate, a magnetic rotating shaft and watch hands are arranged at the center of the dial plate, the measurement component is a cuboid and is provided with a cylindrical measurement chamber therein, an adjusting screw and a sealing ring are arranged at a left end of the measurement chamber, the right side of the adjusting screw isconnected with a spring, the right side of the spring is connected with a magnetic column connecting rod and a sealing cover, the outer side of the magnetic column connecting rod is coated with a magnetic column, a guide post is arranged at a right end of the magnetic column a chamber plug and a sealing ring are arranged at the right end of the measurement chamber, a first pressure source interface and a second pressure source interface communicating with the measurement chamber are formed in a side wall of the measurement component, the guide post pushes the magnetic column to horizontally move in the measurement chamber and compress or release the spring under the action of a pressure difference, and the magnetic rotating shaft drives the watch hands to rotate under the action of a magnetic force of the magnetic column. The magnetic differential pressure gauge disclosed by the invention is suitable for the static pressure difference measurement of filters, water pumps, pipelines andcooling systems, and has the advantages of compact structure, convenient use and automatic alarm.

Description

technical field [0001] The invention relates to the field of pressure detection, in particular to a magnetic differential pressure gauge and a using method thereof. Background technique [0002] In the process of chemical industry, metallurgy, gas, electric power, medicine and other industries, it is often necessary to measure the small differential pressure between two pressure sources, such as: the pressure loss and working status of the filter, the pressure loss of the pipe network, and the pressure of the valve. working status etc. There are some defects in the differential pressure gauges currently on the market. For differential pressure gauges with mechanical transmission gear structure, the friction generated by gear transmission will affect the measurement accuracy of differential pressure gauges, which is not suitable for micro-pressure measurement; differential pressure gauges with liquid injection structure The pressure gauge is filled with liquid, which is pron...

AI Technical Summary

Problems solved by technology

There are some defects in the differential pressure gauges currently on the market. For differential pressure gauges with mechanical transmission gear structure, the friction generated by gear transmission will affect the measurement accuracy of differential pressure gauges, which is not suitable for micro-pressure measurement; differential pressure gauges with liquid injection structure The pressure gauge, which is filled with liquid, is prone to failures such as liquid leakage, and lacks the characteristics of anti-seismic and anti-vibration, so it is applicable to limited industrial environments

In addition, in industrial production, there are many occasions where differential pressure measurement is required. The distance of pipeline laying is long and wide. Manual inspection is time-consuming and laborious, and it is difficult to achieve complete coverage. When the measurement value of differential pressure gauge is abnormal In the event of a serious situation, it is often not discovered in time, the potential safety hazard is large, accidents are likely to occur, and losses are caused.

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