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Flame arrestor for process transmitter

A technology of transmitter and flame arrester, used in instruments, fire rescue, pressure difference measurement between multiple valves, etc., can solve problems such as expensive

Active Publication Date: 2012-09-19
ROSEMOUNT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The EDM process is also expensive relative to conventional machining processes, such as drilling operations

Method used

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  • Flame arrestor for process transmitter
  • Flame arrestor for process transmitter
  • Flame arrestor for process transmitter

Examples

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Embodiment Construction

[0015] figure 1 Process control system 10 is shown including process transmitter 12 , control room 14 and process piping 16 . Process transmitter 12 is connected to control room 14 by control loop 18 and to process piping 16 by bracket 20 . The pressure of a process fluid, such as the fluid within conduit 16 , is fluidly connected to transmitter 12 through process connection 22 . The control room 14 supplies power from a power source 24 to the transmitter 12 through a control circuit 18 . Control loop 18 also enables communication system 26 to transmit data from control room 14 to transmitter 12 and to receive data from transmitter 12 . In various implementations, the control loop 18 and the communication system 26 are communicated through, for example, FOUNDATION TM Digital network protocols such as Fieldbus or such as 4-20mA Systems such as simulated network protocol operation. In other embodiments, the transmitter 12 and the control room 14 are connected via wireless ...

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Abstract

A process transmitter for sensing a process variable includes a transmitter housing, a sensor, transmitter circuitry, a passageway and a flame arrestor. The transmitter housing has an interior. The sensor is disposed within the interior, senses a process variable of an industrial process and generates a sensor signal. The transmitter circuitry is disposed within the interior and connects to the sensor. The passageway is in communication with the sensor and extends through the interior of the transmitter housing. The passageway has a first cross-sectional profile. The flame arrestor is positioned in the passageway. The flame arrestor has a second cross-sectional profile different from the first cross-sectional profile. The flame arrestor produces a path in an interior of the passageway having a smaller cross-sectional area than that of the first cross-sectional profile of the passageway.

Description

technical field [0001] The present invention generally relates to industrial process transmitters for use in industrial process control systems. More particularly, the present invention relates to flame arresters for industrial process transmitters. Background technique [0002] Process equipment is used to monitor process parameters such as pressure, temperature, flow and level of process fluids used in industrial processes. For example, process transmitters are often used at multiple locations in an industrial manufacturing facility to monitor various process parameters along various production lines. Process transmitters include sensors that generate electrical outputs in response to physical changes in process parameters. For example, pressure transmitters include pressure sensors that produce an electrical output as a function of the pressure of a process fluid, such as in a water supply line, in a chemical vessel. Each process transmitter also includes transmitter e...

Claims

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Application Information

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IPC IPC(8): G01L13/00A62C4/02
CPCG01L19/0645A62C4/02G01L19/0663G01L13/00Y10T29/49826
Inventor 埃里克·保罗·彼得森
Owner ROSEMOUNT INC
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