3results about How to "Solve the preservation problem" patented technology

The utility model discloses a kind of fresh-keeping container gas regulation and control devices, it is related to the field of fresh-keeping container, to solve the problem that the gas proportion in fresh-keeping container is different when the gas output after target gas mixing in prior art is transported, affect the preservation of goods. The spiral channel formed by every one described spiral vane and the inner wall of mixing box and fixed outer tube is separated by another two described spiral vane to form first gas channel, second gas channel and third gas channel, every group described first gas channel, second gas channel and third gas channel are communicated, and the uppermost end outside annular array of mixing box side wall along first gas channel is provided with first air inlet, and the lower end of mixing box side wall along first air inlet is provided with second air inlet and third air inlet, and first air inlet, second air inlet and third air inlet are communicated with corresponding first gas channel, second gas channel and third gas channel respectively.

The invention discloses construction and application of a compound microbial agent for fresh keeping of litchis before picking. According to key enzymes and pathogenic bacteria of litchi peel browning, microbial strains which can tolerate high-concentration metal ions, high-yield lignin degrading enzymes, resist fungi and the like are directionally screened, and the microbial strains are combined into the compound microbial agent for fresh keeping of litchis before picking and applied to the growth period of litchis fruits, so that the litchis fruits become larger after being picked, and the fresh-keeping effect of the litchis is improved. The peel of the fruit shell is harder and not easy to damage, the white film on the inner wall is thicker, the natural oxidation speed is slowed down, the pulp is firm and glittering, the kernel and the pulp are tightly connected, the browning degree of the peel is delayed, and the lesion rate and the water loss rate of the fruit are low. According to the method, any physical or chemical treatment or biological fresh-keeping agents are not needed after the litchis are picked, and the natural fresh-keeping period after picking is prolonged while the original taste and flavor of the litchis are kept. The method creatively solves the problem of fresh keeping of the litchis, and important economic and social benefits are generated after industrial application.

This invention discloses a live fish transport life support system, including a fish hold equipped with a controller and a vent valve. The fish hold contains a sensor array, an inlet, an outlet, a circulating sewage pump, a cyclone filter, an oxygen generator, an ultrasonic ammonia nitrogen blowing auxiliary system, an oxygen injection valve, an oxygen supply valve, a breathing valve, a sterilizer, a second Venturi air-water mixer, an oxygen generator, a water temperature regulator, and an oxygen supply water drive valve. Sewage pumped by the circulating sewage pump flows into the cyclone filter from the outlet. Centrifugal force forces heavier particulate solids out of the vessel via the sewage pump and an overboard valve, while lighter water flows into the Venturi air-water mixer. Oxygen from the oxygen generator enters the Venturi air-water mixer through the oxygen supply valve and the oxygen injection valve, mixing with water above the cyclone filter to form oxygenated water. This oxygenated water then flows into the ultrasonic ammonia nitrogen blowing auxiliary system, enters the sterilizer for disinfection, and then enters the water temperature regulator through the oxygen supply water drive valve for mixing. Finally, it mixes with oxygen produced by the second Venturi air-water mixer and the oxygen generator to form oxygenated water, which then enters the fish hold through the inlet. This invention improves the survival rate of ocean-going fish during transport.