# US 2019/0170424 A1 · Jet nozzle structure of impact-type freezer

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- Number: US 2019/0170424 A1
- Document ID: US20190170424A1
- Status: Published application
- Kind: A1
- Application number: 16/236,391
- Filed: 2018-12-29
- Published: 2019-06-06
- Earliest claimed: 2017-12-01
- Assignees: Shanghai Ocean University
- Applicants: Shanghai Ocean University
- Inventors: Jing XIE; Wenjun Li; Jinfeng Wang; Yuyan Liu
- Web page: https://patentgrep.com/patent/US20190170424A1

## CPC

- F25D 17/06: by forced circulation
- A23B 2/001: {Details of apparatus, e.g. pressure feed valves or for transport, or loading or unloading manipulation}
- A23B 2/803: {Materials being transported through or in the apparatus, with or without shaping, e.g. in the form of powders, granules or flakes}
- F25D 23/00: General constructional features (F25D21/00 takes precedence)
- F25D 23/006: {for mounting refrigerating machinery components}
- F25D 2317/063: with air guides
- F25D 2317/0672: Outlet ducts
- F25D: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B)
- A23B: PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES

## Abstract

A jet nozzle structure of an impact-type freezer includes an orifice plate, a plurality of diversion channels and a plurality of jet nozzles. A plurality of circular openings in a linear arrangement are uniformly distributed in the orifice plate. The diversion channel is a hollow truncated cone including a top opening connected to the circular opening and a bottom opening connected to an inlet of the jet nozzle. The jet nozzle is a hollow cylinder and it has an outlet. A distance between two adjacent circular openings is 40-100 mm, diameter of the circular opening is 30-80 mm, and a height of the diversion channel is 20-60 mm. An inner diameter and a height of the jet nozzle are 6-15 mm and 20-40 mm, respectively. A distance between the bottom opening of the jet nozzle and a conveyor belt is 10-100 mm.

## Claims

### Claim 1

A jet nozzle structure of an impact-type freezer, comprising
an orifice plate;
a plurality of diversion channels; and
a plurality of jet nozzles;
wherein a plurality of circular openings in a linear arrangement are uniformly distributed in the orifice plate;
the diversion channel is a hollow truncated cone comprising a top opening and a bottom opening; the top opening of the diversion channel is connected to the circular opening, and the bottom opening of the diversion channel is connected to an inlet of the jet nozzle; the jet nozzle is a hollow cylinder;
a distance between two adjacent circular openings is 40-100 mm, a diameter of the circular opening is 30-80 mm, and a height of the diversion channel is 20-60 mm; an inner diameter of the jet nozzle is 6-15 mm and a height of the jet nozzle is 20-40 mm; a distance between the bottom opening of the jet nozzle and a conveyor belt arranged below the jet nozzle is 10-100 mm; and the distance between the two adjacent circular openings is a distance between geometric centers of two circular openings.

### Claim 2 (depends on 1)

The jet nozzle structure of claim 1, wherein the distance between the two adjacent circular openings is 50-80 mm; the diameter of the circular opening is 40-60 mm; the height of the diversion channel is 30-50 mm; the inner diameter of the jet nozzle is 8-12 mm and the height of the jet nozzle is 25-35 mm; and the distance between the bottom opening of the jet nozzle and the conveyor belt arranged below the jet nozzle is 20-60 mm.

### Claim 3 (depends on 2)

The jet nozzle structure of claim 2, wherein the distance between the two adjacent circular openings is 60 mm; the diameter of the circular opening is 50 mm; the height of the diversion channel is 40 mm; the inner diameter of the jet nozzle is 10 mm and the height of the jet nozzle is 30 mm; and the distance between the bottom opening of the jet nozzle and the conveyor belt arranged below the jet nozzle is 50 mm.

### Claim 4 (depends on 1)

The jet nozzle structure of claim 1, wherein an inner wall of the diversion channel and an inner wall of the jet nozzle are individually provided with a spiral groove.