Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
HEAT PUMP DRYING DEVICE AND HEAT PUMP DRYING DEVICE OPERATION METHOD
Document Type and Number:
Japanese Patent JP2015124982
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To realize a distributed drying device capable of maintaining high heat efficiency against variations in the temperature of dry air and air volume, and ensuring stable operation and safety.SOLUTION: A heat pump drying device comprises: a dryer 56 including a dry room 58 into/from a dry target article f is loaded/unloaded; and a heat pump device 20 heating dry air to be fed to the dryer 56. The heat pump device 20 includes: an air heater 26; other constituent components arranged such that the other constituent components and the air heater 26 are disposed in a distributed fashion and including a compressor 24 and an evaporator 30; and a CO2 circulation passage 22 circulating a CO2 medium between the air heater 26 and the other constituent components. The CO2 circulation passage 22 includes an outward passage 22a feeding the CO2 medium in a supercritical region from the other constituent components to the air heater 26; and a return passage 22b returning the CO2 medium after being used for the air heater 26 to heat the dry air to the other constituent components, a partition wall of a pipe constituting the outward passage 22a having a heat insulation structure.

Inventors:
MACHIDA AKITO
NISHIDA KOSAKU
KATO MASASHI
SABUZAWA TOSHIKAZU
Application Number:
JP2013271937A
Publication Date:
July 06, 2015
Filing Date:
December 27, 2013
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MAEKAWA SEISAKUSHO KK
International Classes:
F26B23/00; F26B21/00; F26B21/10
Domestic Patent References:
JP2010038469A2010-02-18
JP2004308969A2004-11-04
JPS5463559U1979-05-04
JPH0552496U1993-07-13
JP2009236483A2009-10-15
JP2007085586A2007-04-05
JP2004218853A2004-08-05
Foreign References:
WO2010049981A12010-05-06
Attorney, Agent or Firm:
Seishin ip patent business corporation