CN203431494U - Liquid argon vaporization cooling capacity recycle, synergy and utilization device for oxygen production factory - Google Patents

Liquid argon vaporization cooling capacity recycle, synergy and utilization device for oxygen production factory Download PDF

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Publication number
CN203431494U
CN203431494U CN201320517697.0U CN201320517697U CN203431494U CN 203431494 U CN203431494 U CN 203431494U CN 201320517697 U CN201320517697 U CN 201320517697U CN 203431494 U CN203431494 U CN 203431494U
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Prior art keywords
argon
oxygen
liquid
nitrogen
heat exchanger
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CN201320517697.0U
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聂佳佳
周勇
谢银宇
俞建平
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Sichuan Air Separation Plant (group) Co Ltd
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Sichuan Air Separation Plant (group) Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/45Hydrogen technologies in production processes

Abstract

The utility model discloses a liquid argon vaporization cooling capacity recycle, synergy and utilization device for an oxygen production factory, and belongs to the technical field of low-temperature liquidation equipment. The liquid argon vaporization cooling capacity recycle, synergy and utilization device comprises an oxygen header pipe, an argon user pipe network, a liquidation device cold end booster expansion turbine, an oxygen-argon heat exchanger, a nitrogen-argon heat exchanger, a cooling capacity recycle and utilization cold box, a liquid oxygen storage tank, a liquid nitrogen storage tank and a liquid argon storage tank. The oxygen-argon heat exchanger and the nitrogen-argon heat exchanger are arranged in the cooling capacity recycle and utilization cold box, and the liquid argon storage tank exchanges heat with the oxygen header pipe through the oxygen-argon heat exchanger and exchanges heat with the liquidation device cold end booster expansion turbine through the nitrogen-argon heat exchanger. According to the liquid argon vaporization cooling capacity recycle, synergy and utilization device, the technology improvement that vaporization cold energy of low-temperature liquid argon of a built oxygen production project is recycled with the least labor and material investment and follow-up running cost, and the aims of energy conservation and synergy are achieved.

Description

Oxyen manutactory's cold energy during liquid argon vaporization reclaims synergy utilized device
Technical field
The utility model belongs to low-temperature liquefaction equipment technical field, relates in particular to the energy saving optimizing of constructed item is increased production and improved productivity.
Background technique
At present, in oxyen manutactory, great majority are all the modes of argon gas that supplies through vaporizer vaporization rear line with the low temperature liquid argon in liquid argon storage tank, and wherein using is mainly empty bath formula vaporizer.Although this mode directly makes liquid argon vaporization with air, do not need extra energy, wasted the cold of cryogenic liquide, do not meet large policy and the aim of current energy-saving and emission-reduction.Adding that present most of oxyen manutactory all exists oxygen emptying to a certain degree, thereby utilize the oxygen of emptying and the cold energy of the low temperature liquid argon vaporization oxygen that liquefies, arrive and effectively reclaim low temperature cold energy during liquid argon vaporization, reduce the emptying of oxygen, reduce production costs, increase extra benefit, be necessary existing equipment to improve.
Model utility content
The purpose of this utility model is: try one's best manpower and materials little and drop into and follow-up operation cost under, the technological improvement that the vaporization cold energy of built oxygen project low temperature liquid argon is recycled, reaches the object of energy efficiency.
The purpose of this utility model realizes by following technical proposals:
A kind of oxyen manutactory cold energy during liquid argon vaporization reclaims synergy utilized device, comprise oxygen house steward, argon gas user pipe network, liquefaction plant cold junction booster expansion turbine, oxygen argon heat exchanger, nitrogen argon heat exchanger, cold recovery is utilized ice chest, liquid oxygen storage tank, liquid nitrogen storage and liquid argon storage tank, described oxygen argon heat exchanger and nitrogen argon heat exchanger are located at described cold recovery and are utilized in ice chest, described liquid argon storage tank is respectively through described oxygen argon heat exchanger and described oxygen house steward heat exchange, and through described nitrogen argon heat exchanger and the heat exchange of described liquefaction plant cold junction booster expansion turbine, after described liquid argon storage tank heat exchange, UNICOM is to argon gas user pipe network, after described oxygen house steward heat exchange, UNICOM is to described liquid oxygen storage tank, after the heat exchange of described liquefaction plant cold junction booster expansion turbine, UNICOM is to described liquid nitrogen storage.
As selection, also comprise nitrogen pipe network, described nitrogen pipe network through described nitrogen argon heat exchanger and described liquid argon storage tank heat exchange Hou, UNICOM to described liquid nitrogen storage.
Workflow of the present utility model: air separation facility normally moves general oxygen emptying, so preferentially oxygen is liquefied, from raw material oxygen house steward's Pressure of Ambient Temperature oxygen and liquid argon heat exchange in oxygen argon heat exchanger from liquid argon storage tank, make liquid argon re-heat to approach normal temperature then through argon gas user pipe network for steel mill steel-making, the oxygen laggard liquid oxygen storage tank that liquefied simultaneously.If just carry out liquid nitrogen by the elevated pressure nitrogen of liquefaction plant cold junction booster expansion turbine without unnecessary oxygen in addition.While is the pressure nitrogen gas reflex hydrothermal solution argon of available nitrogen pipe network also, guarantees the just conventional argon gas of argon gas user pipe network, and the low temperature liquid nitrogen obtaining enters liquid nitrogen storage.
The beneficial effects of the utility model:
1) reclaimed the cold of liquid argon vaporization waste.
2) reduced the bleeding rate of air separation facility oxygen.
3) utilize the cold of liquid argon vaporization and oxygen production fluid in the next life oxygen of emptying, realized considerable value-rising.
4) device flow process is simple, does not increase moving equipment, little investment, short construction period, instant effect, return high, energy-conserving and environment-protective.
5) in prior art for winter in the low place of environment temperature, also need with steam, liquid argon vaporization device to be purged, after improvement, will not there is not this type of situation, reduced the waste of steam energy simultaneously, saved energy consumption, reduced cost.Eliminate potential safety hazard simultaneously, extended the working life of equipment.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's device schematic flow sheet;
In figure, 1 is oxygen house steward, and 2 is argon gas user pipe network, and 3 is liquefaction plant cold junction booster expansion turbine, and 4 is oxygen argon heat exchanger, and 5 is nitrogen argon heat exchanger, and 6 utilize ice chest for cold recovery, and 7 is liquid oxygen storage tank, and 8 is liquid nitrogen storage, and 9 is liquid argon storage tank.
Embodiment
Below in conjunction with specific embodiments and the drawings, the utility model is further described.
As shown in Figure 1, a kind of oxyen manutactory cold energy during liquid argon vaporization reclaims synergy utilized device, comprise oxygen house steward 1, argon gas user pipe network 2, liquefaction plant cold junction booster expansion turbine 3, oxygen argon heat exchanger 4, nitrogen argon heat exchanger 5, cold recovery is utilized ice chest 6, liquid oxygen storage tank 7(is as existing liquid oxygen storage tank, do not newly increase), liquid nitrogen storage 8(is as existing liquid nitrogen storage, do not newly increase) and liquid argon storage tank 9, also comprise nitrogen pipe network, oxygen argon heat exchanger 4 and nitrogen argon heat exchanger 5 are located at cold recovery and are utilized in ice chest 6, liquid argon storage tank 9 is respectively through oxygen argon heat exchanger 4 and oxygen house steward 1 heat exchange, and through nitrogen argon heat exchanger 5 and 3 heat exchange of liquefaction plant cold junction booster expansion turbine, after liquid argon storage tank 9 heat exchange, UNICOM is to argon gas user pipe network 2, after oxygen house steward 1 heat exchange, UNICOM is to liquid oxygen storage tank 7, after 3 heat exchange of liquefaction plant cold junction booster expansion turbine, UNICOM is to liquid nitrogen storage 8, nitrogen pipe network is after nitrogen argon heat exchanger 5 and liquid argon storage tank 9 heat exchange, UNICOM is to liquid nitrogen storage 8.
Workflow of the present utility model: carry out exchange heat process from the liquid argon of liquid argon storage tank 9 with from oxygen house steward 1 pressure oxygen in oxygen argon heat exchanger 4, liquid argon is become normal temperature argon gas to send steel mill to make steel through argon gas user pipe network 2 by re-heat, and pressure oxygen is liquefied, crosses cold laggard liquid oxygen storage tank 7.By steel mill, by argon gas amount, regulate the amount of pressure oxygen, thereby guarantee to generate liquid oxygen, have certain Subcoold temperature.If just carry out liquid nitrogen by the elevated pressure nitrogen of liquefaction plant cold junction booster expansion turbine 3 without unnecessary oxygen in addition.While is the pressure nitrogen gas reflex hydrothermal solution argon of available nitrogen pipe network also, guarantees the just conventional argon gas of argon gas user pipe network 2, and the low temperature liquid nitrogen obtaining enters liquid nitrogen storage 8.For guaranteeing the continuous air feed to argon gas user pipe network under this plant failure state, still retain former empty bath formula carburetion system.
With Zibo Lu Chuan gas Co., Ltd present situation under the Kong Fen Group Co.,Ltd of Sichuan, do to illustrate.
1, the on-the-spot desired parameters extracting:
Send steel mill's argon gas: pressure 13 ~ 15barA, 24 ℃ of temperature.
Oxygen house steward: pressure 20 ~ 21barA, 27 ℃ of temperature.
Nitrogen header pipe: pressure 15 ~ 20barA, 30 ℃ of temperature.
Liquefaction plant cold junction booster expansion turbine nitrogen pipeline: pressure 47barA, 40 ℃ of temperature.
The argon gas use amount 300Nm3 of steel mill.The emptying rate of oxygen generation system oxygen is greater than 3%.
2, improve the benefit that can produce:
As air separation facility normally moves, emptying oxygen all meets the required amount of oxygen of liquefaction, so be within 330 days, to calculate by work in 1 year, just with producing liquid nitrogen situation, is not calculating.
Liquid oxygen 295Nm3/h is equivalent to 421.6kg/h, and a staggering amount is 10.1t so.
600 yuan/the t of average price that gets annual oxygen calculates
Ten thousand yuan of the economic benefit of a year: Y=10.1*600*330=199.98.
Because oxygen emptying can be disregarded cost, so 1 year can synergy approximately 2,000,000 yuan.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims (2)

1.Yi Zhong oxyen manutactory cold energy during liquid argon vaporization reclaims synergy utilized device, it is characterized in that: comprise oxygen house steward, argon gas user pipe network, liquefaction plant cold junction booster expansion turbine, oxygen argon heat exchanger, nitrogen argon heat exchanger, cold recovery is utilized ice chest, liquid oxygen storage tank, liquid nitrogen storage and liquid argon storage tank, described oxygen argon heat exchanger and nitrogen argon heat exchanger are located at described cold recovery and are utilized in ice chest, described liquid argon storage tank is respectively through described oxygen argon heat exchanger and described oxygen house steward heat exchange, and through described nitrogen argon heat exchanger and the heat exchange of described liquefaction plant cold junction booster expansion turbine, after described liquid argon storage tank heat exchange, UNICOM is to argon gas user pipe network, after described oxygen house steward heat exchange, UNICOM is to described liquid oxygen storage tank, after the heat exchange of described liquefaction plant cold junction booster expansion turbine, UNICOM is to described liquid nitrogen storage.
2. oxyen manutactory as claimed in claim 1 cold energy during liquid argon vaporization reclaims synergy utilized device, it is characterized in that: also comprise nitrogen pipe network, described nitrogen pipe network is through described nitrogen argon heat exchanger and described liquid argon storage tank heat exchange Hou, UNICOM described liquid nitrogen storage extremely.
CN201320517697.0U 2013-08-23 2013-08-23 Liquid argon vaporization cooling capacity recycle, synergy and utilization device for oxygen production factory Active CN203431494U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104807292A (en) * 2015-04-13 2015-07-29 河南开元空分集团有限公司 Device and method for comprehensively utilizing nitrogen gas emptying energy and liquid argon gasification cold energy
CN105972934A (en) * 2016-07-13 2016-09-28 浙江智海化工设备工程有限公司 Liquefying device for achieving liquid argon cold energy recovery
CN106225421A (en) * 2016-08-19 2016-12-14 浙江智海化工设备工程有限公司 A kind of argon cold that reclaims carries out oxygen liquid gasifying device
CN108980626A (en) * 2018-08-24 2018-12-11 苏州澳佰特自动化设备有限公司 A kind of filling recovery method of helium detection air locking
CN112066641A (en) * 2020-09-25 2020-12-11 湖北浠水蓝天联合气体有限公司 Tank car emptying oxygen, argon and nitrogen recovery system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104807292A (en) * 2015-04-13 2015-07-29 河南开元空分集团有限公司 Device and method for comprehensively utilizing nitrogen gas emptying energy and liquid argon gasification cold energy
CN105972934A (en) * 2016-07-13 2016-09-28 浙江智海化工设备工程有限公司 Liquefying device for achieving liquid argon cold energy recovery
CN106225421A (en) * 2016-08-19 2016-12-14 浙江智海化工设备工程有限公司 A kind of argon cold that reclaims carries out oxygen liquid gasifying device
CN108980626A (en) * 2018-08-24 2018-12-11 苏州澳佰特自动化设备有限公司 A kind of filling recovery method of helium detection air locking
CN108980626B (en) * 2018-08-24 2020-09-15 苏州澳佰特自动化设备有限公司 Filling recovery method of helium detection sealing device
CN112066641A (en) * 2020-09-25 2020-12-11 湖北浠水蓝天联合气体有限公司 Tank car emptying oxygen, argon and nitrogen recovery system

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