34results about How to "Extended refrigeration time" patented technology

The invention provides a method for preserving plusia agnata staudinger eggs, and belongs to the technical field of insect breeding. Produced eggs within 24 hours are taken, placed into a closed container and are buried by silica sand, the container is filled with mixed gas of nitrogen, oxygen and carbon dioxide, and the container is closed. The temperature of the container is decreased to range from 2 DEGC to 4 DEG C at the speed ranging from 4 DEG C / h to 5 DEG C / h, and refrigerating is carried out. The temperature of the container is increased to range from 6 DEG C to 8 DEG C at the speed ranging from 8 DEG C / h to 1.2 DEG C / h, and preserving gas is removed and placed in the air. The temperature of the container is continuously increased to range from 10 DEG C to 12 DEG C at the speed ranging from 8 DEG C / h to 1.2 DEG C / h, and the silicon sand is removed. The temperature of the container is continuously increased to the normal temperature at the speed ranging from 8 DEG C / h to 1.2 DEG C / h, and the humidity is maintained to range from 70% to 80%, and normal hatching can be carried out. According to the method for preserving the plusia agnata staudinger eggs, under the low temperature ranging from 2 DEG C to 4 DEG C, the refrigerating time of the plusia agnata staudinger eggs can be increased to 120 days, the rejuvenation probability in the artificial breeding process is greatly decreased, the refrigerated eggs can be hatched according to needs, and the producing, regulating and controlling capacity is greatly improved.

The invention belongs to the technical field of packaging boxes, and particularly relates to a packaging box with long refrigeration time. The packaging box comprises a top cover, an outer box body, a reaction module and a storage box body. In the using process of the packaging box, firstly, freezing treatment needs to be carried out on a freezing shell, when the freezing shell designed by the invention is subjected to freezing treatment, a frozen medium in four freezing blocks flows back into the freezing shell, and then the four freezing blocks are pressed into a ball to be placed on the freezing shell, so that the space, occupied by the freezing shell during freezing, of a refrigerator is reduced, and freezing of the freezing shell is facilitated; and meanwhile, according to the designed reaction module, in the process of refrigerating articles in the storage box body, after the frozen medium in the freezing shell and the freezing blocks absorbs heat to be melted, the reaction module is triggered through the change of the volume of the frozen medium, substances, located at two sides of a partition plate, in a shell of the reaction module are in contact to generate chemical reaction, and the frozen medium in the freezing shell and the freezing blocks absorbs heat to be frozen again, so that the refrigeration time of the packaging box is prolonged.

The embodiments of the present invention provide a slow-release cold storage system and a slow-release cold storage bag. The slow-release cold storage system includes a slow-release system and a cool-storage system. The slow-release system includes a slow-release agent and a refrigerant dispersed in the slow-release agent. The freezing point temperature of the release agent is higher than the freezing point temperature of the cold storage system. Due to the temperature difference between the freezing point of the slow-release system and the cold storage system, when the ambient temperature rises, the cold storage system will melt first because the freezing point of the cold storage system is lower than that of the slow-release system. role. When the temperature rises to the freezing point of the slow-release system, the slow-release system begins to melt. At this time, the refrigerant dispersed in the slow-release system contacts with the melted cold storage system to undergo an endothermic reaction, thereby further absorbing environmental heat, and finally With the effect of continuous cooling and cold storage, compared with the ice packs in the prior art, it can prevent the temperature from melting and absorbing heat to cause an excessive instantaneous drop in temperature, and effectively prolong the refrigeration time.

The invention discloses a cold-storage ice bag. The main liquid inlet channel and the main air inlet channel are located at the two ends of the outer membrane transversely, and there are multiple liquid storage chambers, hollow mold cavities and air storage chambers, all of which are arranged longitudinally on the liquid inlet main channel. Between the passage and the main inlet passage, and the two sides of each hollow cavity are respectively connected in parallel with the liquid storage chamber and the gas storage chamber. The chamber is connected to the main air intake channel through a one-way air intake branch channel; the cool storage agent includes water, potassium nitrate, sodium chloride, konjac fine powder, polyvinyl alcohol and borax. The invention discloses a cool-storage ice pack, which has both cold-storage effect and buffering effect, and can prevent frozen food or products from being mechanically damaged; the cool-storage agent in the invention is jelly-like at normal temperature, making it difficult for cold-storage food or products to be polluted by the cool-storage agent The cold storage agent in the present invention has a higher phase change potential and a lower phase change temperature, and the cold storage time is long, and at the same time, it can avoid the thermal damage of the refrigerated food or product.