Title:
APPARATUS FOR DETECTING TIME TO DEFROST EVAPORATION HEAT EXCHANGER BASED ON BYPASS AIRFLOW MEASUREMENT AND METHOD FOR CONTROLLING OPERATIONS OF SAME
Document Type and Number:
WIPO Patent Application WO/2014/137060
Kind Code:
A1
Abstract:
The present invention relates to an apparatus for detecting a time to defrost an evaporation heat exchanger based on a bypass airflow measurement and a method for controlling operations of the same. The present invention provides an apparatus for detecting the time to defrost an evaporation heat exchanger based on a bypass airflow measurement, the apparatus comprising: a flow rate detection unit for detecting the flow rate resulting from an airflow caused inside a body cover of the evaporation heat exchanger through bypass piping; a digital input unit capable of receiving an instruction to allow or stop defrosting; a key manipulation unit supporting an interface for setting value adjustments necessary for a defrosting operation or an average value measurement mode; a control unit for controlling the defrosting operation, an alarm output control, and an operating state display operation based on a defrosting operation necessary condition set by the user and a flow rate change rate measured by the flow rate detection unit; a memory unit for storing an average value regarding the flow rate change amount and a user parameter; and a relay driving unit for transferring a valve control signal of the control unit, and a method for controlling the operation of the apparatus, so that the defrosting operation can be controlled efficiently without erroneous operations.
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Inventors:
CHOI DEUK NAM (KR)
KIM KYUNG WOO (KR)
SEONG HYO WON (KR)
LIM HYEON (KR)
KIM JIN SU (KR)
KIM KYUNG WOO (KR)
SEONG HYO WON (KR)
LIM HYEON (KR)
KIM JIN SU (KR)
Application Number:
PCT/KR2013/011235
Publication Date:
September 12, 2014
Filing Date:
December 05, 2013
Export Citation:
Assignee:
DOTECH CO LTD (KR)
International Classes:
F25B49/02; F25B39/02; F25B47/02; F28F17/00
Foreign References:
| KR100674180B1 | 2007-01-24 | |||
| JP2008051361A | 2008-03-06 |
Attorney, Agent or Firm:
PATENT LAW FIRM GRAND KOREA (KR)
특허법인대한 (KR)
특허법인대한 (KR)
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