Title:
CASCADE SYSTEM, METHOD OF CONTROLLING SAME, AND HEATING-DEDICATED BOILER CONSTITUTING THE CASCADE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2012/091244
Kind Code:
A1
Abstract:
An object of the present invention is to provide a cascade system having a simple structure, a method of controlling same, and a heating-dedicated boiler constituting the cascade system. When a portion of boilers constituting a multi boiler is selectively operated according to a heating load, the cascade system sufficiently supplies hot water from the boilers to the heating load. To this end, a cascade system according to the present invention includes: a boiler pump that is selectively operated according to a heating load, and circulates heating water; a plurality of boilers including a heat exchanger that transfers combustion heat from a burner to the heating water circulated by the boiler pump; and a heating load pump circulating the heating water. The boilers include: a three way valve whereby a passage through which the heating water circulated by the boiler pump and the heating load pump is recovered along a heating water recovering pipe is selectively directed toward either an inlet of the heat exchanger or a heating water supply pipe connected to an outlet of the heat exchanger; and a control part controlling a direction of the three way valve according to the heating load.
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Inventors:
MIN TAE SIK (KR)
Application Number:
PCT/KR2011/006120
Publication Date:
July 05, 2012
Filing Date:
August 19, 2011
Export Citation:
Assignee:
KYUNGDONG NAVIEN CO LTD (KR)
MIN TAE SIK (KR)
MIN TAE SIK (KR)
International Classes:
F03D3/02; F24D19/08; F24D19/10
Foreign References:
| JP2005098628A | 2005-04-14 | |||
| JP4383238B2 | 2009-12-16 | |||
| JP3818810B2 | 2006-09-06 | |||
| JP3117955B2 | 2000-12-18 |
Attorney, Agent or Firm:
NAM, Jin Woo et al. (KR)
남진우 (KR)
남진우 (KR)
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Claims:
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