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Patent Searching and Data


Title:
EVAPORATOR AND TURBO-FREEZER PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2017/061211
Kind Code:
A1
Abstract:
Provided is an evaporator capable of, in a turbo-freezer using a low pressure refrigerant used at a maximum pressure of less than 0.2 MPaG, preventing dry-out of a group of heat transfer pipes in an evaporator to increase heat transfer performance and to suppress reduced efficiency due to carryover of the low pressure refrigerant in a liquid phase to a turbo-compressor side and a turbo-freezer provided with same. An evaporator (7) comprises a pressure container (21) into which a refrigerant is compressed and introduced, a refrigerant inlet (22) provided on a lower portion of the pressure container, a refrigerant outlet (23) provided on an upper portion of the pressure container, a group of heat transfer pipes (25) that exchange heat with the refrigerant through the interior of the pressure container and a tabular refrigerant distribution plate (26) installed between the refrigerant inlet and the group of heat transfer pipes and in which refrigerant flow holes (26a) are drilled. The surface ratio of the refrigerant flow holes per unit area on the refrigerant distribution plate in an area (A1) corresponding to a position near the upstream side of the group of heat transfer pipes is greater than that in another area (A2).

Inventors:
MIYOSHI NAOYA (JP)
UEDA KENJI (JP)
SHIRAKATA YOSHINORI (JP)
MATSUKURA NORIYUKI (JP)
Application Number:
PCT/JP2016/076068
Publication Date:
April 13, 2017
Filing Date:
September 06, 2016
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
F25B39/02; C09K5/04; F22B37/30; F25B1/00; F28D1/04; F28D7/16; F28F9/02; F28F9/24
Foreign References:
JP2002081699A2002-03-22
JP2012512317A2012-05-31
JP2010531970A2010-09-30
JPS60251302A1985-12-12
JPH11201686A1999-07-30
JPH11294706A1999-10-29
JP2014507622A2014-03-27
JPS58183471U1983-12-07
JPH04155190A1992-05-28
Attorney, Agent or Firm:
FUJITA, Takaharu (JP)
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