Title:
SMALL-SCALE COMBINED HEAT AND POWER SYSTEM AND METHOD FOR CONTROLLING SAME
Document Type and Number:
WIPO Patent Application WO/2011/149191
Kind Code:
A2
Abstract:
The aim of the present invention is to provide a small-scale combined heat and power (CHP) system and a method for controlling same, which are capable of using existing equipment to achieve a cooling function that can maintain the temperature of a heat medium, which is stored in a heat-medium storage tank and flows into a waste-heat recovery heat exchanger of a CHP generator, at a suitable temperature range for waste-heat recovery, in order to enable the CHP generator to continuously operate and smoothly supply power without being shut down. To achieve the above aim, a small-scale CHP system of the present invention comprises: a CHP generator (100) including a waste-heat recovery heat exchanger (110) for recovering waste heat produced during the generation of electricity; a boiler (200) including a main heat exchanger (210) for conveying a heat medium supplied from the waste heat recovery heat exchanger (110), and a combustion fan (230) for supplying air to a burner (220) that provides combustion heat to the main heat exchanger (210); and a heat-medium storage tank (300) for storing the circulated heat medium, and for supplying the stored heat medium to the waste heat recovery heat exchanger (110) of the CHP generator (100). The heat-medium storage tank (300) includes: a temperature-sensing unit (530) for measuring the temperature of the heat medium stored in the heat-medium storage tank; and a control unit (600) for controlling the combustion fan (230) to rotate and supply air to the heat medium conveyed through the main heat exchanger (210), when there is no heating and hot water load, and the temperature of the heat medium measured by the temperature-sensing unit (530) is equal to or greater than a first set temperature.
Inventors:
MIN, Tae Sik (#202 Seohee Villa, 79-11 Heukseok-dong Dongjak-gu, Seoul 156-070, 156-070, KR)
Application Number:
KR2011/002923
Publication Date:
December 01, 2011
Filing Date:
April 22, 2011
Export Citation:
Assignee:
KYUNGDONG NAVIEN CO., LTD. (437Segyo-dong, Pyeongtaek-si, Gyeonggi-do 450-818, 450-818, KR)
주식회사 경동나비엔 (경기도 평택시 세교동 437, 450-818 Gyeonggi-do, 450-818, KR)
주식회사 경동나비엔 (경기도 평택시 세교동 437, 450-818 Gyeonggi-do, 450-818, KR)
International Classes:
F24D10/00; F24D19/08; F24D19/10
Attorney, Agent or Firm:
NAM, Jin Woo et al. (#909 Ace Techno Tower 8-Cha, 191-7 Guro-dong Guro-gu, Seoul 152-780, 152-780, KR)
Claims:
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