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Helium low-pressure recycling, purification and storage device and application method thereof

A storage device, helium technology, applied in chemical instruments and methods, inert gas compounds, inorganic chemistry, etc., can solve the problems of not being widely used, complex low-temperature fractionation technology, and high requirements for compressor equipment, etc. Achieve broad market application and promotion prospects, reduce the probability of explosion accidents, and have the effect of simple structure

Inactive Publication Date: 2014-03-12
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The process of cryogenic fractionation technology is more complicated, and the requirements for equipment are high, and the equipment is required to withstand high pressure and ultra-low temperature
The high-pressure recovery device adopts a multi-stage compression structure for helium, which has high requirements for the compressor equipment of the device, and the high pressure has relatively high requirements for the gas storage tank, which is prone to safety accidents
The purity of helium purified by the liquid helium purification and recovery device is relatively high, but the condensing agent used in this device is generally liquid nitrogen or liquid neon, and the consumption of condensing agent is relatively large
Purification membrane separation equipment has great requirements on the purity of helium, and the purification membrane technology is immature, so it has not been widely used

Method used

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  • Helium low-pressure recycling, purification and storage device and application method thereof

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Effect test

Embodiment 1

[0036] Such as figure 1 As shown, a helium low-pressure recovery, purification and storage device includes a pipeline system and a compression system 1 connected by the pipeline system, a filtration purification system and a helium storage system 4 at the end, and the filtration purification system includes Crude helium filter 301, oil-water separator 303, cold dryer 304 and adsorption cylinder 305, described crude helium filter 301 is installed on the intake pipe of compression system 1, oil-water separator 303, cold dryer 304 and adsorption cylinder 305 Installed on the outlet pipe of the compression system 1 respectively, the cold dryer 304 and the adsorption cylinder 305 are used together to achieve the effect of low-temperature adsorption.

[0037] Wherein, the pipeline system includes the pipeline 2 connecting the compression system 1, the filtration and purification system and the helium storage system 4, the intake probe 201 arranged at the beginning, the intake valve ...

Embodiment 2

[0043]The difference between this embodiment and Embodiment 1 is that the filtration and purification system also includes a primary filter 302, and the pipeline system also includes a pressure regulating valve 206 for adjusting the discharge air pressure of the compression system 1, the inlet probe 201, the crude helium filter device 301, inlet valve 203, compression system 1, outlet valve 204, pressure regulating valve 206, primary filter 302, oil-water separator 303, cold dryer 304, adsorption cylinder 305, high-pressure inflation exhaust 207, and helium storage system 4 The pipelines 2 are connected sequentially, and the compression system 1, filtration purification system and pipeline system are arranged on a trolley for easy transportation and adjustment.

[0044] The working process and working principle of the present invention: the helium in the aerostat passes through the air inlet probe and the coarse helium filter to filter out some coarser particles, then compresse...

Embodiment 3

[0046] A method for recovering, purifying and storing helium in an aerostat, using the low-pressure recovery, purification and storage device for helium described in Embodiment 1 or 2, specifically comprising the following steps:

[0047] a. Absorb the crude helium in the aerostat through the suction hole on the spherical air intake probe;

[0048] b. The inhaled crude helium first passes through the crude helium filter to filter out the coarse particles in the crude helium;

[0049] c. Then enter the compression system for compression, and the compressed helium passes through the pressure regulating valve to control the air pressure to meet the set requirements;

[0050] d. Helium is initially filtered through the primary filter to further filter out the remaining gas impurities;

[0051] e. Then the helium passes through the oil-water separator to remove the oil and water in the compressed gas;

[0052] f. After dehydration and oil removal, the helium is cooled and dried b...

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Abstract

The invention discloses a helium low-pressure recycling, purification and storage device which comprises a pipeline system, a compression system, a filtration and purification system and a helium storage system, wherein the compression system and the filtration and purification system are communicated with the pipeline system; the helium storage system is arranged at the tail end; the filtration and purification system comprises a coarse helium filter, an oil-water separator, a dryer and a adsorption cylinder; the coarse helium filter is mounted on the air inlet pipe of the compression system; the oil-water separator, the dryer and the adsorption cylinder are respectively mounted on the air outlet pipe of the compression system. The invention further discloses a method for using the helium low-pressure recycling, purification and storage device to recycle, purify and store helium in an aerostatics. The helium low-pressure recycling, purification and storage device adopts a single-stage compression, low-temperature adsorption, and multistage filtering structure, so that the helium recycling and purification rate is high; in addition, the helium low-pressure recycling, purification and storage device has the advantages of simple and compact structure, simpleness and convenience in use, low manufacturing cost, portability and convenience in transportation.

Description

technical field [0001] The invention relates to a helium gas recovery technology, in particular to a helium low-pressure recovery, purification and storage device and its use method. Background technique [0002] An aerostat is an aircraft that uses a gas lighter than air to generate static lift to overcome its own gravity, including airships, tethered balloons, tethered boats, and airbag aircraft. At present, the gases used in aerostats mainly include light gases and hot gases. Light gases include hydrogen, helium, methane, ammonia, natural gas and coal gas, etc., and hot gases mainly include hot air and water vapor. Since helium is an inert gas and non-flammable, helium is the most commonly used buoyancy gas in aerostats. [0003] Helium has the advantages of high buoyancy efficiency and good safety, but helium is a rare gas resource, and its content in the air is about 5 parts per million. The only economically feasible way to obtain helium is from helium-rich Helium is...

Claims

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Application Information

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IPC IPC(8): C01B23/00
Inventor 周志艳陈盛德李继宇臧英罗锡文胡炼徐赛闫梦璐
Owner SOUTH CHINA AGRI UNIV
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