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Title:
CIRCULAR JET NOZZLE STRUCTURE OF IMPACT INSTANT FREEZER
Document Type and Number:
WIPO Patent Application WO/2019/104783
Kind Code:
A1
Abstract:
A circular jet nozzle structure of an impact instant freezer, comprising a perforated plate (1), flow guide recesses (3), and nozzles (4). A plurality of circular holes (2) are uniformly distributed on the perforated plate in order; each flow guide recess is in the shape of a hollow inverted truncated cone comprising an upper opening and a lower opening; the upper opening of the flow guide recess is connected to the circular hole, and the lower opening of the flow guide recess is connected to an inlet of the nozzle; the nozzle is hollow cylindrical; a spacing between every two adjacent circular holes is 40-100 mm, the diameter of the circular hole is 30-80 mm, the height of the flow guide recess is 20-60 mm, the inner diameter of the nozzle is 6-15 mm, the height of the nozzle is 20-40 mm, and a vertical distance between the lower end of the nozzle and a frozen food conveyor belt below the nozzle is 10-100 mm. The structure can effectively improve the uniformity of a frozen food cooling process, mitigate a large difference in frozen food cooling rates at different positions in a food freezing process with a conventional structure, and improve the quality of frozen foods.

Inventors:
XIE, Jing (Shanghai Ocean University, No.999 Hucheng Ring Rd Lingang New Town, Pudong New District, Shanghai 6, 201306, CN)
LI, Wenjun (Shanghai Ocean University, No.999 Hucheng Ring Rd Lingang New Town, Pudong New District, Shanghai 6, 201306, CN)
WANG, Jinfeng (Shanghai Ocean University, No.999 Hucheng Ring Rd Lingang New Town, Pudong New District, Shanghai 6, 201306, CN)
LIU, Yuyan (Shanghai Ocean University, No.999 Hucheng Ring Rd Lingang New Town, Pudong New District, Shanghai 6, 201306, CN)
Application Number:
CN2017/117613
Publication Date:
June 06, 2019
Filing Date:
December 21, 2017
Export Citation:
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Assignee:
SHANGHAI OCEAN UNIVERSITY (Xie Jing, Shanghai Ocean University No.999 Hucheng Ring Rd, Lingang New Town, Pudong New District, Shanghai 6, 201306, CN)
International Classes:
F25D17/06; A23L3/36
Foreign References:
CN1253731A2000-05-24
CN1257573A2000-06-21
JP2007278586A2007-10-25
US4397158A1983-08-09
Attorney, Agent or Firm:
WAYNE INTELLECTUAL PROPERTY AGENCY CO., LTD. (Vincent Huang, Room 715 Building A, Zhihui Innovative Center, Qianjin 2nd Road, Bao'an Distric, Shenzhen Guangdong 6, 518126, CN)
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