Unlock instant, AI-driven research and patent intelligence for your innovation.

Flow enhanced tunnel freezer

A technology of equipment and refrigerant, applied in the field of airflow-enhanced tunnel refrigeration equipment

Inactive Publication Date: 2008-01-23
BOC GRP INC
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the unit must be able to control the throughput of food and must prevent freezing and clogging of internal components due to condensed snow and ice

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flow enhanced tunnel freezer
  • Flow enhanced tunnel freezer
  • Flow enhanced tunnel freezer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention relates to an apparatus for cooling and / or freezing food, wherein the food is conveyed on a conveyor, such as a conveyor belt or other moving A solid refrigerant, such as nitrogen or carbon dioxide, is cooled or frozen.

[0025] The heat transfer that occurs in cooling or freezing food products is usually caused by the impingement of the refrigerant gas stream on the food product. Furthermore, additional heat transfer can also be achieved by spraying or mixing liquid or solid cryogen into the impinging jet of cryogen gas.

[0026] Heat transfer from an item, such as a food product, to the cryogen is maximized through the use of an impingement shield through which solid or liquid cryogen is sprayed while an impinger such as an impingement plate is used to generate the cryogen flow Inject gases (such as carbon dioxide or nitrogen) that circulate around the item or food. The design of the device increases heat transfer from the item or food to the c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Food products are frozen or cooled within a housing chamber defined by side walls between an ceiling and floor and having a cryogen supply, a food products conveyor extending into the chamber disposed between the ceiling and floor, by transporting the food products on the conveyor; the chamber containing at least one impingement hood disposed above the conveyor; the impingement hood including a shell including a top, opposed edges and opposed side walls supporting an impinger containing openings. Gas and solid or liquid cryogen are mixed within the impingement hood, the mixture of gas and cryogen are directed to the impinger, and impingement jets of the mixture are directed through an impingement plate onto the food products transported on the conveyor.

Description

technical field [0001] The present invention relates to an improved method and apparatus for refrigerating and freezing food or other substances conveyed through the apparatus on a conveyor belt or other moving substrate. Background technique [0002] Commercial freezers typically rely on fans or blowers to transfer heat away from the food being refrigerated or frozen. Typically, a fan or blower is located near the conveyor belt on which the food is conveyed. Food entering the freezer has a boundary layer of air surrounding it, which isolates the food from the surrounding atmosphere. Conventional refrigeration equipment uses blowers that create cooling airflow in many directions. However, a significant portion of the cooling airflow does not contact the food in a vertical direction. In these cases, the cooling airflow that does not contact the food product generally does not have sufficient energy to significantly reduce the thickness of the boundary layer around the surf...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F25D13/06F25D17/02F25D25/04F25D9/00A23L3/36F25D3/11F25D3/12
CPCF25D2500/02F25D3/127F25D3/11
Inventor M·D·纽曼S·A·麦克考密克S·D·波义雷斯R·穆斯卡托
Owner BOC GRP INC