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Device for making fluid ice crystals through LNG cold energy and method of device

A technology of fluid and ice crystals, which is applied in the field of devices for producing fluid ice crystals, can solve the problems of low refrigeration efficiency and achieve the effects of short time consumption, strong industrialization prospects, and fast ice making speed

Active Publication Date: 2018-07-27
NANJING UNIV OF TECH
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Problems solved by technology

However, this method also has the disadvantage of low cooling efficiency.

Method used

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  • Device for making fluid ice crystals through LNG cold energy and method of device

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Embodiment 1

[0037]The present invention provides a device for producing fluid ice crystals by using the cold energy of LNG. The cold energy released in the gasification process of LNG is used to produce fluid ice crystals. Vacuum system 8, pipeline connection system and control system, the LNG inlet pipeline 3 communicates with the bottom of the spray bed 16, the spray bed is in the shape of a hollow cylinder, with tapered heads at the upper and lower ends, and the top of the spray bed 16 is equipped with Spray system 5, this setting can make the water and LNG directly contact, and the spray head used in the spray system has the performance of low temperature resistance; above the spray system 5, there is a gas-solid separator 6, which passes through the gas-solid separator 6. The separated gas rises to the exhaust port on the top of the spray bed and is discharged through the first exhaust pipeline 7 connected with the exhaust outlet. The first exhaust pipeline 7 passes through the NG ret...

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Abstract

The invention discloses a device for making fluid ice crystals through LNG cold energy and a method of the device. The device comprises a spraying bed, a boiling bed, a nitrogen starting and closing purging system, a vacuumizing system, a pipeline connection system and a control system; an LNG inlet pipeline communicates with the position below the spraying bed which is in the shape of a hollow cylinder; the upper end and the lower end of the spraying bed are each provided with a conical sealing head, and a spraying system is arranged on the upper portion in the spraying bed; a gas-solid separator is arranged above the spraying system; gas separated through the gas-solid separator ascends to a gas exhausting port in the top of the spraying bed, and is discharged out through a first gas exhausting pipeline communicating with the gas exhausting port; the first gas exhausting pipeline is connected with the lower portion of the boiling bed through an NG backflow pipeline; NG of the boilingbed is introduced in the NG backflow pipeline; and the nitrogen starting and closing purging system is arranged on the NG backflow pipeline. The device is high in ice making speed, short in consumedtime, high in yield, easy to control, capable of greatly saving electric energy and extremely high in industrialized prospect.

Description

technical field [0001] The invention relates to a device for producing fluid ice crystals, more specifically to a device and method for producing fluid ice crystals by using LNG cold energy, and belongs to the technical field of comprehensive energy utilization. Background technique [0002] Fluid ice crystal is a new concept of ice different from traditional solid ice. It is a kind of ice crystal with nearly round particles. It not only has the characteristics of fluid, can be transported by pipeline, but also has the characteristics of ice, with fast cooling and large latent heat. [0003] Compared with the traditional snowflake ice, because of its huge surface (contact) area, super heat transfer performance, constant temperature, and rapid cooling and cooling performance, fluid ice crystals are widely used in fishing, seafood processing, poultry processing, and vegetable preservation. , Supermarket preservation, (fermentation) industrial technology, ice storage air condit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25J1/00F25J5/00
CPCF25J1/0045F25J5/002
Inventor 陶汉中刘士琦芮磊
Owner NANJING UNIV OF TECH
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