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In-line Process Fluid Pressure Transmitters for High Pressure Applications

A process fluid and transmitter technology, applied in the direction of measuring fluid pressure through electromagnetic components, measuring fluid pressure, instruments, etc., can solve problems such as insufficient robustness

Active Publication Date: 2022-01-18
ROSEMOUNT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A structure that provides only a single application capable of withstanding the maximum operating pressure may not be robust enough to avoid fatigue when repeatedly moved to and beyond the maximum operating pressure

Method used

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  • In-line Process Fluid Pressure Transmitters for High Pressure Applications
  • In-line Process Fluid Pressure Transmitters for High Pressure Applications
  • In-line Process Fluid Pressure Transmitters for High Pressure Applications

Examples

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Embodiment Construction

[0013] figure 1 is a diagrammatic perspective view of an in-line process fluid pressure transmitter to which embodiments of the present invention are particularly useful. The pressure transmitter 100 includes a process fluid connector 102 configured to couple with a process fluid source 104 . Process fluid introduced at connector 102 presses against the isolation diaphragm, which transmits process fluid pressure to a pressure sensor disposed within sensor body 106 . Pressure Sensor( figure 2 ) has an electrical characteristic (such as capacitance or resistance) that is measured by measurement circuitry in the electronics housing 108 and converted to process fluid pressure by the controller using an appropriate calculation. Process fluid pressure may be communicated over a process communication loop via wires 110 coupled through conduit 110 and / or displayed locally via display 112 . Additionally, in some implementations, process fluid pressure may be communicated wirelessly...

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Abstract

An in-line process fluid pressure transmitter is provided. The transmitter includes a process fluid connector configured to couple with a source of process fluid. A plug is coupled to the process fluid connector and has a channel configured to communicate fluid to the distal end of the plug. The pressure sensor sub-kit is coupled to the plug at the weld. The pressure sensor subassembly has a pressure sensor operably coupled to the distal end of the channel such that the pressure sensor is responsive to process fluid pressure. The plug includes a sidewall surrounding the weld. Transmitter electronics are coupled to the pressure sensor and configured to measure an electrical characteristic of the pressure sensor and provide a process fluid pressure value based on the measured electrical characteristic.

Description

Background technique [0001] Industrial Process Fluid Pressure Transmitters are used to measure the pressure of industrial process fluids such as slurries, liquids, steam or gases in chemical, pulp, gasoline, pharmaceutical, food and / or other fluid handling plants. Industrial process fluid pressure transmitters are often placed near the process fluid or in field applications. These field applications are often subject to harsh and changing environmental conditions, which present challenges to designers of such transmitters. [0002] The sensing elements in many process fluid pressure transmitters are often capacitive-based or resistive-based sensors. Isolation diaphragms are generally used to separate the process fluid from the electrically active sensing unit, thereby preventing process fluids that may sometimes be rough, corrosive, dirty, contaminated, or have extremely high temperatures from contacting the pressure transmitter. Electrical component interactions. [0003] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L9/00
CPCG01L19/003G01L19/086B23K2103/05B23K31/02G01L9/0041
Inventor 大卫·M·斯特瑞查尔斯·R·威勒克斯布雷克·T·彼得森大卫·A·布罗登
Owner ROSEMOUNT INC