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Title: Steam trap monitor

Abstract

A steam trap monitor positioned downstream of a steam trap in a closed steam system includes a first sensor (the combination of a hot finger and thermocouple well) for measuring the energy of condensate and a second sensor (a cold finger) for measuring the total energy of condensate and steam in the line. The hot finger includes one or more thermocouples for detecting condensate level and energy, while the cold finger contains a liquid with a lower boiling temperature than that of water. Vapor pressure from the liquid is used to do work such as displacing a piston or bellows in providing an indication of total energy (steam+condensate) of the system. Processing means coupled to and responsive to outputs from the thermocouple well hot and cold fingers subtracts the condensate energy as measured by the hot finger and thermocouple well from the total energy as measured by the cold finger to provide an indication of the presence of steam downstream from the trap indicating that the steam trap is malfunctioning.

Inventors:
 [1]
  1. (Plainfield, IL)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
866680
Patent Number(s):
4764024
Assignee:
United States of America as represented by United States (Washington, DC) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
steam; trap; monitor; positioned; downstream; closed; sensor; combination; hot; finger; thermocouple; measuring; energy; condensate; cold; total; line; thermocouples; detecting; level; contains; liquid; boiling; temperature; water; vapor; pressure; displacing; piston; bellows; providing; indication; processing; means; coupled; responsive; outputs; fingers; subtracts; measured; provide; presence; indicating; malfunctioning; total energy; boiling temperature; vapor pressure; cold finger; processing means; positioned downstream; steam trap; trap monitor; /374/73/237/

Citation Formats

Ryan, Michael J. Steam trap monitor. United States: N. p., 1988. Web.
Ryan, Michael J. Steam trap monitor. United States.
Ryan, Michael J. Fri . "Steam trap monitor". United States. https://www.osti.gov/servlets/purl/866680.
@article{osti_866680,
title = {Steam trap monitor},
author = {Ryan, Michael J.},
abstractNote = {A steam trap monitor positioned downstream of a steam trap in a closed steam system includes a first sensor (the combination of a hot finger and thermocouple well) for measuring the energy of condensate and a second sensor (a cold finger) for measuring the total energy of condensate and steam in the line. The hot finger includes one or more thermocouples for detecting condensate level and energy, while the cold finger contains a liquid with a lower boiling temperature than that of water. Vapor pressure from the liquid is used to do work such as displacing a piston or bellows in providing an indication of total energy (steam+condensate) of the system. Processing means coupled to and responsive to outputs from the thermocouple well hot and cold fingers subtracts the condensate energy as measured by the hot finger and thermocouple well from the total energy as measured by the cold finger to provide an indication of the presence of steam downstream from the trap indicating that the steam trap is malfunctioning.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

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