Method for determining freezing point based on unfrozen moisture of food, controller and refrigeration equipment

A refrigeration equipment and freezing point technology, which is applied in the investigation phase/state change and other directions, can solve the problems of inconvenient thawing, decreased food quality, and difficulty in controlling the time point, so as to prolong the preservation period and maintain the effect of nutrition and deliciousness.

Inactive Publication Date: 2018-02-23
HEFEI HUALING CO LTD +2
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for judging the freezing point based on the unfrozen water content of food, a controller and a ref...

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
  • Method for determining freezing point based on unfrozen moisture of food, controller and refrigeration equipment
  • Method for determining freezing point based on unfrozen moisture of food, controller and refrigeration equipment
  • Method for determining freezing point based on unfrozen moisture of food, controller and refrigeration equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0039] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. "First", "second", "third" and "fourth" do not represent any sequence relationship, but are only distinguished for convenience of description. Those of ordinary skil...

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

The invention relates to the field of refrigeration control, in particular to a method for determining a freezing point based on unfrozen moisture of food, a controller and refrigeration equipment. According to the invention, different unfrozen moisture contents of the food at different temperatures are used to judge whether the food enters a frozen state or not. The unfrozen moisture is combinedwith temperature control to control food temperature within a reasonable range all the time. If the food enters the frozen state, a warming-up mode can be entered immediately to prevent water inside the food from forming ice crystals continuously, so that the food is not frozen, and when the temperature of the food reaches a certain value, the temperature is immediately lowered repeatedly for multiple times, the food temperature is kept to 0 DEG C to the freezing point temperature for most of the time or all the time, and the freezing point temperature is within minus 10 to 0 DEG C. The percentage content change rate of unfrozen water in the food is used to effectively determine the freezing point of the food, unfrozen moisture changes in the food are effectively combined with the temperature control, and the food temperature is reasonably controlled to reach a critical state in which the food is not frozen and fresh so as to ensure that the food is not frozen and fresh and prolong thepreservation period.

Description

technical field [0001] The invention relates to the field of refrigeration control, in particular to a method for judging the freezing point by the unfrozen water content of food, a controller and refrigeration equipment. Background technique [0002] In order to extend the shelf life of food, freezing technology has always been the most common and effective method. For example, frozen meat at -18°C can generally be stored for 6 to 12 months, but the most serious problem is that it is inconvenient to thaw, and the food quality after thawing and The taste has dropped significantly. [0003] At present, it mainly depends on obtaining the temperature value of the food to judge whether the food is in a frozen state. The methods for obtaining the temperature mainly include: [0004] 1. Non-contact temperature sensors, such as infrared sensors: Infrared sensors with an accuracy of 1°C cannot obtain the accurate temperature value of the food, so it is impossible to accurately judg...

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
IPC IPC(8): G01N25/04
CPCG01N25/04
Inventor 伍志刚史慧新龚勤勤宁志芳
Owner HEFEI HUALING CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap