Convective heater
Abstract
A convective heater for heating fluids such as a coal slurry is constructed of a tube circuit arrangement which obtains an optimum temperature distribution to give a relatively constant slurry film temperature. The heater is constructed to divide the heating gas flow into two equal paths and the tube circuit for the slurry is arranged to provide a mixed flow configuration whereby the slurry passes through the two heating gas paths in successive co-current, counter-current and co-current flow relative to the heating gas flow. This arrangement permits the utilization of minimum surface area for a given maximum film temperature of the slurry consistent with the prevention of coke formation.
- Inventors:
-
- Macungie, PA
- Issue Date:
- Research Org.:
- International Coal Refining Co
- OSTI Identifier:
- 864814
- Patent Number(s):
- 4422411
- Assignee:
- International Coal Refining Company (Allentown, PA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
F - MECHANICAL ENGINEERING F28 - HEAT EXCHANGE IN GENERAL F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- DOE Contract Number:
- AC05-78OR03054
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- convective; heater; heating; fluids; coal; slurry; constructed; tube; circuit; arrangement; obtains; optimum; temperature; distribution; relatively; constant; film; divide; gas; flow; equal; paths; arranged; provide; mixed; configuration; whereby; passes; successive; co-current; counter-current; relative; permits; utilization; minimum; surface; maximum; consistent; prevention; coke; formation; optimum temperature; film temperature; convective heat; relatively constant; gas flow; current flow; coal slurry; heating gas; temperature distribution; circuit arrangement; co-current flow; coke formation; tube circuit; convective heater; gas path; arrangement permits; flow configuration; slurry film; heating fluids; heating fluid; constant slurry; /122/165/
Citation Formats
Thorogood, Robert M. Convective heater. United States: N. p., 1983.
Web.
Thorogood, Robert M. Convective heater. United States.
Thorogood, Robert M. Sat .
"Convective heater". United States. https://www.osti.gov/servlets/purl/864814.
@article{osti_864814,
title = {Convective heater},
author = {Thorogood, Robert M},
abstractNote = {A convective heater for heating fluids such as a coal slurry is constructed of a tube circuit arrangement which obtains an optimum temperature distribution to give a relatively constant slurry film temperature. The heater is constructed to divide the heating gas flow into two equal paths and the tube circuit for the slurry is arranged to provide a mixed flow configuration whereby the slurry passes through the two heating gas paths in successive co-current, counter-current and co-current flow relative to the heating gas flow. This arrangement permits the utilization of minimum surface area for a given maximum film temperature of the slurry consistent with the prevention of coke formation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {1}
}
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