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Dry ice generator using cold energy produced in vaporization of cryogenic liquid

A low-temperature liquid and generator technology, applied in chemical instruments and methods, inorganic chemistry, carbon compounds, etc., can solve problems such as low-temperature cold energy waste, and achieve the effect of reducing heat exchange load and energy consumption

Active Publication Date: 2013-09-11
邯郸市深冷气体分离设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the filling operation, since the high-pressure low-temperature liquid after the low-temperature liquid pump is vaporized by heat exchange between the evaporator and the air in the atmosphere, a large amount of low-temperature cold energy is wasted into the atmosphere.

Method used

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  • Dry ice generator using cold energy produced in vaporization of cryogenic liquid

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Embodiment Construction

[0009] Such as figure 1 As shown, one end of the liquid pump 2 is in sealing communication with the cryogenic storage tank 1 through a pipeline, and the other end is in sealing communication with one end of the vaporizer 5 through a pipeline and a valve 4, and the other end of the vaporizer 5 is in sealing communication with the collision system 12 through a pipeline. The two ends of the valve 4 are connected in parallel with the heat exchanger of the dry ice generator through the pipeline, the valve 3, and the carbon dioxide gas inlet of the dry ice generator is sealed and communicated with the carbon dioxide cylinder 11, which can also be a carbon dioxide storage tank.

[0010] Described dry ice generator comprises insulation shell 9, heat exchanger 7, liner 8, piston 6 and dry ice shape control plate 10, and piston 6 is in the inner liner 8 of stainless steel, and inner liner 8 slide fits, and inner liner 8 A dry ice-shaped control board 10 is fixed at one end, and a copper...

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Abstract

The invention relates to a dry ice generator using cold energy produced in vaporization of a cryogenic liquid. According to the invention, one end of a liquid pump is hermetically communicated with a cryogenic storage tank, and the other end of the liquid pump is hermetically communicated with one end of a vaporizer through a pipeline and a valve; the other end of the vaporizer is hermetically communicated with a collision system through a pipeline; two ends of the valve are parallely jointed with a heat exchanger of the dry ice generator through pipelines and another valve; and a carbon dioxide gas inlet of the dry ice generator is hermetically communicated with a carbon dioxide gas cylinder. The dry ice generator provided by the invention uses cryogenic cold energy generated in the processes of filling and gasification of a variety of cryogenic liquids for coagulation and solidification of carbon dioxide without consumption of electric energy, and theoretically, the generation rate of dry ice can 100%; so the dry ice generator is a novel energy-saving environment-friendly technology for production of dry ice.

Description

technical field [0001] The invention relates to a dry ice generator, in particular to a device for making dry ice by utilizing the vaporized cold energy of a low-temperature liquid. Background technique [0002] Industrial dry ice generally uses liquid carbon dioxide throttling expansion to obtain dry ice. The dry ice formation rate of this process is generally only about 40%, and most of the non-condensed carbon dioxide gas is not easy to recycle, resulting in a lot of waste; and if Freon refrigeration or ammonia refrigeration process is used Although obtaining low-temperature cooling capacity can increase the dry ice generation rate, it requires a larger refrigeration compressor and consumes more electric energy. [0003] More and more various cryogenic liquids such as liquid oxygen, liquid argon, and liquid nitrogen are stored in cryogenic storage tanks, then pressurized by cryogenic liquid pumps, and filled into high-pressure gas cylinders for sale after heat exchange an...

Claims

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Application Information

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IPC IPC(8): C01B31/22C01B32/55
CPCY02P20/10
Inventor 杨中维
Owner 邯郸市深冷气体分离设备有限公司