Liquid oxygen pot icing preventing device and method used for cold-chain transportation of live fishes

Abstract

The invention relates to the technical field of cold-chain logistics, in particular to liquid oxygen pot icing preventing device and method used for cold-chain transportation of live fishes. The device comprises a liquid oxygen pot, an oxygen transfer pipe and an oxygen transfer pipe heat preservation device, wherein the liquid oxygen pot is detachably arranged in a carriage, a fish transportationbox is arranged in the carriage, a fish loading opening is formed in the fish transportation box, one end of the oxygen transfer pipe is connected with the liquid oxygen pot, the other end of the oxygen transfer pipe is arranged on the bottom of the interior of the fish transportation box through the fish loading opening, the oxygen transfer pipe heat preservation device comprises a heat exchangepipe, an input pipe, a return pipe, an organic heating medium and a container, the heat exchange pipe is arranged on the periphery of the oxygen transfer pipe, and conducts heat exchange with the oxygen transfer pipe, two ends of the heat exchange pipe are connected with the container in a sealed mode through the input pipe and the return pipe separately, and the organic heating medium is liquid,and is arranged in the container. By means of the liquid oxygen pot icing preventing device and method used for cold-chain transportation of the live fishes, economic losses brought by delayed treatment of icing of a liquid oxygen transfer pipe in a live fish transportation process are prevented, and the transportation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of cold chain logistics, in particular to an anti-icing device and method for a liquid oxygen tank used for cold chain transportation of live fish. Background technique [0002] Nowadays, people have more and more demand for fresh fish, so it is very important to ensure the quality of fresh fish arriving at the destination after long-distance transportation. Live fish are transported by motor vehicles. In order to increase the transport capacity, the loading density in the live fish tank is usually dozens of times higher than that of the breeding conditions. While the fish quickly consume dissolved oxygen in the water, they excrete a large amount of metabolites into the water, resulting in water pollution. The deterioration of the environment, if not improved in time, will lead to the death of a large number of fish. In the prior art, the technology for continuously improving the water environment in the li...

AI Technical Summary

Problems solved by technology

Liquid oxygen needs to absorb a large amount of heat during the gasification process. Because there is water in the fish tank and the compartment is in a humid environment, the oxygen pipe of the liquid oxygen tank often freezes. The temperature is low, and the ice on the oxygen pipe will not melt. If it is not handled in time, the oxygen pipe will be blocked, and the live fish in the fish tank will not be able to obtain oxygen in time. A large-scale hypoxic death accident will occur, and the merchants will suffer heavy losses.

At present, the way to deal with the freezing of oxygen pipes is usually that the driver rinses the oxygen pipes with hot water every once in a while to thaw them, which undoubtedly affects the transportation efficiency of live fish. Bring economic loss; in addition, if the driver does not handle it in time or forgets to handle it, it will also cause the death of live fish and cause economic loss

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