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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 (a hot finger) 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 bellow in providing an indication of total energy (steam + condensate) of the system. Processing means coupled to and responsive to outputs from the hot and cold fingers subtracts the former from the latter to provide an indication of the presence of steam downstream from the trap indicating that the steam trap is malfunctioning. 2 figs.

Inventors:
Issue Date:
Research Org.:
Argonne National Lab., IL (USA)
OSTI Identifier:
6808440
Patent Number(s):
-US-A6045960
Assignee:
ANL; EDB-88-179005
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; MONITORS; DESIGN; STEAM TRAPS; ENERGY LOSSES; INVENTIONS; LEAK DETECTORS; LOSSES; MEASURING INSTRUMENTS; TRAPS 420400* -- Engineering-- Heat Transfer & Fluid Flow; 420200 -- Engineering-- Facilities, Equipment, & Techniques

Citation Formats

Ryan, M.J. Steam trap monitor. United States: N. p., 1987. Web.
Ryan, M.J. Steam trap monitor. United States.
Ryan, M.J. Mon . "Steam trap monitor". United States.
@article{osti_6808440,
title = {Steam trap monitor},
author = {Ryan, M.J.},
abstractNote = {A steam trap monitor positioned downstream of a steam trap in a closed steam system includes a first sensor (a hot finger) 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 bellow in providing an indication of total energy (steam + condensate) of the system. Processing means coupled to and responsive to outputs from the hot and cold fingers subtracts the former from the latter to provide an indication of the presence of steam downstream from the trap indicating that the steam trap is malfunctioning. 2 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {5}
}