MX9708331A - Horno de modulacion con inductor de traccion de dos velocidades. - Google Patents

Horno de modulacion con inductor de traccion de dos velocidades.

Info

Publication number
MX9708331A
MX9708331A MX9708331A MX9708331A MX9708331A MX 9708331 A MX9708331 A MX 9708331A MX 9708331 A MX9708331 A MX 9708331A MX 9708331 A MX9708331 A MX 9708331A MX 9708331 A MX9708331 A MX 9708331A
Authority
MX
Mexico
Prior art keywords
furnace
draft inducer
inducer fan
firing rate
control system
Prior art date
Application number
MX9708331A
Other languages
English (en)
Other versions
MXPA97008331A (es
Inventor
Dennis R Maiello
Scott A Willbanks
Original Assignee
Rheem Mfg Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rheem Mfg Co filed Critical Rheem Mfg Co
Publication of MXPA97008331A publication Critical patent/MXPA97008331A/es
Publication of MX9708331A publication Critical patent/MX9708331A/es

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N1/00Regulating fuel supply
    • F23N1/02Regulating fuel supply conjointly with air supply
    • F23N1/022Regulating fuel supply conjointly with air supply using electronic means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N5/00Systems for controlling combustion
    • F23N5/18Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F23N2005/181Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using detectors sensitive to rate of flow of air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00Signal processing; Details thereof
    • F23N2223/08Microprocessor; Microcomputer
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00Measuring
    • F23N2225/04Measuring pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00Ventilators
    • F23N2233/02Ventilators in stacks
    • F23N2233/04Ventilators in stacks with variable speed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00Valves, nozzles or pumps
    • F23N2235/12Fuel valves
    • F23N2235/16Fuel valves variable flow or proportional valves

Abstract

Se proporciona un horno de calentamiento de aire encendido con combustible, de traccion forzado, de modulacion con un ventilador inductor de traccion de dos velocidades, y una válvula de combustible la cual es completamente modulable entre un régimen de encendido máximo y un régimen de encendido bajo de aproximadamente cuarenta por ciento. Incorporados al sistema de control de horno se encuentran interruptores de presion-eléctricos de encendido bajo y alto normalmente cerrados, los cuales perciben y están secuencialmente cerrados por presion negativa en incremento en el ventilador inductor de traccion. Una solicitud de calor desde un termostato ubicado en el espacio acondicionado servido por el horno, el ventilador inductor de traccion es activado en su fijacion de alta velocidad, y una señal es enviada hacia la válvula de combustible para fijarlo a su flujo de régimen de encendido total cuando se abre por una porcion de interruptor de ignicion del sistema de control. El sistema de control funciona para abrir la válvula de combustible a su fijacion de flujo máximo, y permitir el encendido del quemador, solo si (1) ambos interruptores de presion-eléctricos de encendido bajo y alto están cerrados, y (2) el ventilador inductor de traccion está operando a su fijacion de velocidad alta. De esta forma, además de proporcionar un amplio rango de modulacion de salida de calentamiento de horno, se facilita una ignicion confiable del quemador y se reduce la corrosion por calentamiento del cambiador térmico debido al inicio de régimen de encendido total del horno. Además, la incorporacion del ventilador inductor de traccion de dos velocidades sustancialmente mejora la eficiencia total del combustible en el horno.
MX9708331A 1996-10-30 1997-10-29 Horno de modulacion con inductor de traccion de dos velocidades. MX9708331A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/752,371 US5732691A (en) 1996-10-30 1996-10-30 Modulating furnace with two-speed draft inducer
US08752371 1996-10-30

Publications (2)

Publication Number Publication Date
MXPA97008331A MXPA97008331A (es) 1998-04-01
MX9708331A true MX9708331A (es) 1998-04-30

Family

ID=25026043

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9708331A MX9708331A (es) 1996-10-30 1997-10-29 Horno de modulacion con inductor de traccion de dos velocidades.

Country Status (5)

Country Link
US (1) US5732691A (es)
AU (1) AU720035B2 (es)
CA (1) CA2215882C (es)
MX (1) MX9708331A (es)
NZ (1) NZ328877A (es)

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Also Published As

Publication number Publication date
CA2215882C (en) 2000-08-22
US5732691A (en) 1998-03-31
CA2215882A1 (en) 1998-04-30
NZ328877A (en) 1998-02-26
AU4363797A (en) 1998-05-07
AU720035B2 (en) 2000-05-18

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