Title:
HEAT MEDIUM BOILER
Document Type and Number:
WIPO Patent Application WO/2013/054546
Kind Code:
A1
Abstract:
A heat medium boiler (1) is provided with a recuperator (11) which preheats combustion air by causing the combustion air and gas discharged from the boiler to exchange heat with each other. The heat medium boiler (1) is provided with a fuel gas supply line (12) which supplies gas fuel to a burner (2), an inverter (9) which changes the rotational speed of an air blower (8), a fuel gas flow rate adjustment valve (13), a control means (16) which controls the fuel gas flow rate adjustment valve (13), and a pressure difference detection means (15) which detects a pressure difference across the recuperator (11). The control means (16) calculates the amount of combustion air on the basis of the detected pressure difference and controls the fuel gas flow rate adjustment valve (13) according to the calculated amount of combustion air. When a change in the combustion air exceeds a predetermined range, the control means (16) adjusts the frequency of the inverter (9) and controls the fuel gas flow rate adjustment valve (13) according to the amount of combustion air.
Inventors:
MIYAZAKI RYOTA (JP)
INOUE KAZUNOBU (JP)
TANAKA YASUKUNI (JP)
OZAWA HIROSHI (JP)
AMI TAKAYUKI (JP)
INOUE KAZUNOBU (JP)
TANAKA YASUKUNI (JP)
OZAWA HIROSHI (JP)
AMI TAKAYUKI (JP)
Application Number:
PCT/JP2012/051157
Publication Date:
April 18, 2013
Filing Date:
January 20, 2012
Export Citation:
Assignee:
MIURA KOGYO KK (JP)
MIYAZAKI RYOTA (JP)
INOUE KAZUNOBU (JP)
TANAKA YASUKUNI (JP)
OZAWA HIROSHI (JP)
AMI TAKAYUKI (JP)
MIYAZAKI RYOTA (JP)
INOUE KAZUNOBU (JP)
TANAKA YASUKUNI (JP)
OZAWA HIROSHI (JP)
AMI TAKAYUKI (JP)
International Classes:
F23N1/04; F23L15/00; F23N5/00; F23N5/18
Foreign References:
| JPH10267266A | 1998-10-09 | |||
| JPH02298719A | 1990-12-11 |
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Claims: