CN207317371U - A kind of device of Full distillation purification recycling argon gas - Google Patents
A kind of device of Full distillation purification recycling argon gas Download PDFInfo
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- CN207317371U CN207317371U CN201721397642.5U CN201721397642U CN207317371U CN 207317371 U CN207317371 U CN 207317371U CN 201721397642 U CN201721397642 U CN 201721397642U CN 207317371 U CN207317371 U CN 207317371U
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Abstract
It the utility model is related to a kind of device of Full distillation purification recycling argon gas, it includes crude argon purification recovery system and the argon gas circulatory system, crude argon purification recovery system includes feed gas compressor group, main heat exchanger, deoxidation tower, pure argon column, subcooler, the argon gas circulatory system includes cycle compressor unit and expanding machine, and each equipment is attached by respective line；The argon gas circulatory system provides low temperature for ice chest and provides cold for argon gas liquefaction, oxygen content ＜ 1.5ppm, nitrogen content ＜ 4ppm in high-purity liquid nitrogen made from the device.The utility model provides cold by circulator, while argon gas is purified, is also liquefied to argon gas, compensate for the deficiency of the supporting space division of coal chemical industry；And pass through reasonable disposition heat exchange process so that energy utilization optimizes, and reduces the loss of cold, farthest recycles argon gas, reduces and wastes, has certain economic benefit.
Description
Technical field
It the utility model is related to gas separation technique field, more particularly to a kind of device of Full distillation purification recycling argon gas.
Background technology
Argon gas is a kind of inert gas of no color or smell, its molecular formula is Ar, molecular weight 39.95, and vapour pressure is
202.64kPa (- 179 DEG C), -189.2 DEG C of fusing point, -185.7 DEG C of boiling point.In the industrial production, argon gas is often used as a kind of height
The protective gas of effect, use are quite varied.
The main source of argon gas is that byproduct output is used as from big space division.Generally had in the supporting space division of steel plant
Pure argon produces.But in the air separation plant that coal chemical industry technique uses, since argon gas is not required in coal chemical industry technique in itself, so matching somebody with somebody
Set space division does not produce pure argon generally, this space division can supporting synergy tower, the crude argon that synergy top of tower comes out, generally amount containing argon is
85%, it is oxygen that remaining is most of, and few part is nitrogen, without other impurity.This part crude argon can be directly vented, and be caused
Waste.
Utility model content
The utility model lies in that the defects of overcoming in the prior art, for the supporting space division feature of coal chemical industry, exploitation low temperature
The Methods For Purification crude argon of Full distillation obtains pure argon, is exactly to obtain pure liquid argon, it specifically provides a kind of Full distillation
The device of purification recycling argon gas, is wasted with reducing.
To achieve the above object, the utility model adopts the following technical solution：
First purpose of the utility model is to provide a kind of device of Full distillation purification recycling argon gas, it includes：Crude argon
The pure recovery system of air lift, it is included by the feed gas compressor group of pipeline connection, main heat exchanger, deoxidation tower, pure argon column, supercooling
Device, wherein, the main heat exchanger, deoxidation tower, pure argon column and subcooler are arranged in ice chest, and the deoxidation tower includes being arranged at
The deoxidation tower reboiler of deoxidation tower bottom and the deoxidation tower condenser/evaporator being arranged at the top of deoxidation tower, the pure argon column include setting
It is placed in the pure argon column reboiler of pure argon column bottom and the pure argon column condenser/evaporator being arranged at the top of pure argon column；Argon gas cyclic system
System, it includes the cycle compressor unit and expanding machine connected by pipeline, and the cycle compressor unit and expanding machine pass through
Corresponding pipeline purifies corresponding equipment in recovery system with crude argon and is attached respectively.
In order to further optimize above device, the technical measures that the utility model is taken further include：
Further, the feed gas compressor group includes the feed gas compressor of pipeline connection successively and unstripped gas compression
Machine aftercooler, the cycle compressor unit are cold after recycle gas compressor and recycle gas compressor including the connection of pipeline successively
But device, the expanding machine include the expanding machine pressurized end of pipeline connection, supercharging aftercooler and expander end successively；Wherein
The expander end is arranged in the ice chest.
Further, the deoxidation tower reboiler, deoxidation tower condenser/evaporator, pure argon column reboiler, pure argon column condensation are steamed
It is immersion heat exchanger to send out device.
Further, the deoxidation tower and pure argon column use structured packing structure, random packing structure or sieve plate tower structure.
Further, the connecting line of each equipment in the crude argon purification recovery system includes：
For crude argon to be passed sequentially through feed gas compressor group, main heat exchanger sent to the feed pipe of deoxidation tower middle and upper part；
For by deoxidation crude argon from the deoxidation crude argon tracheae sent at the top of deoxidation tower in the middle part of pure argon column and will be high-purity
The liquid argon pipe that liquid argon is sent out from pure argon column bottom；
For being sent deoxidation crude argon in part to the deoxidation crude argon branch of deoxidation tower condenser/evaporator from deoxidation crude argon tracheae
Manage and deoxidation crude argon condensate liquid is returned to the deoxidation crude argon condensate liquid return duct at the top of deoxidation tower；
For nitrogen to be sent out at the top of the pure argon column to the nitrogen tube by main heat exchanger recycling cold discharge, for by part
Nitrogen send to the nitrogen branch pipe of pure argon column condenser/evaporator from nitrogen tube and returns to nitrogen condensate liquid at the top of pure argon column
Nitrogen condensate liquid return duct.
For the gaseous mixture of nitrogen and oxygen to be sent out what is discharged after main heat exchanger recycles cold from denitrification column lower part
Mixture pipe, for the oxygen-bearing liquid pipe by oxygen-bearing liquid from deoxidation tower bottom discharge.
Further, in the argon gas circulatory system in each equipment and the crude argon purification recovery system each equipment company
Adapter road includes：
For the mixed argon gas circulation for discharging the top of deoxidation tower condenser/evaporator and pure argon column condenser/evaporator
Gas is sent to the circulating gas pipe of cycle compressor unit after recycling cold via subcooler, main heat exchanger；
For being sent circulating air to the circulating air recurrent canal of main heat exchanger from cycle compressor unit；
For sending to the first circulation gas recurrent canal of deoxidation tower reboiler and being used for part circulating air from main heat exchanger
Part circulating air condensate liquid is back to the first circulation airsetting liquid recurrent canal of deoxidation tower condenser/evaporator；
For sending to the second circulation gas recurrent canal of pure argon column reboiler and being used for part circulating air from main heat exchanger
Part circulating air condensate liquid is back to the second circulation airsetting liquid recurrent canal of pure argon column condenser/evaporator.
Further, circulating air is set to return to branch pipe on the circulating air recurrent canal, circulating air return branch pipe is used for will
Part circulating air is sent back to and is incorporated into via expanding machine pressurized end, supercharging aftercooler, main heat exchanger, expander end successively
The circulating gas pipe of subcooler outlet；Further, draw circulating air from the middle part of main heat exchanger and be connected to expander end.
Further, the first circulation gas for being connected to pure argon column condenser/evaporator is set on first circulation airsetting liquid recurrent canal
Lime set returns to branch pipe.
Further, the feed pipe of main heat exchanger outlet, deoxidation crude argon tracheae, first circulation airsetting liquid recurrent canal,
Second circulation airsetting liquid recurrent canal, first circulation airsetting liquid return and are respectively provided with regulating valve on branch pipe.
Further, which further includes the liquid nitrogen storage tank for storing high-purity liquid nitrogen.
Second purpose of the utility model is to provide a kind of purified using above device progress Full distillation and recycles argon gas
Method, it includes the following steps：
The supercharging cooling of step 1) crude argon：Crude argon containing oxygen and hydrogen is increased into feed gas compressor group
Pressure and preliminary cooling, and condensing temperature is cooled further to by main heat exchanger；
The rectification and purification of step 2) crude argon：The middle and lower part that crude argon under condensing temperature enters deoxidation tower carries out rectifying point
From, deoxidation tower top obtain deoxidation crude argon, deoxidation tower bottom discharge oxygen-bearing liquid；Deoxidation crude argon is from deoxidation tower
Top be discharged into the middle part of pure argon column and carry out rectifying separation, high-purity liquid argon is obtained in the bottom of pure argon column, in pure argon column
Discharge nitrogen in top；
Wherein, the main heat exchanger, deoxidation tower, pure argon column are arranged in ice chest, and the argon gas circulatory system is the ice chest
Low temperature is provided and provides cold for argon gas liquefaction.
In order to further optimize the above method, the technical measures of the utility model include：
Further, the composition (volume content) of the crude argon is Ar：82~87%；O2：12~18%；N2：0.01~
0.03%, further, the composition (volume content) of the crude argon is Ar：85%；O2：14.98%；N2：0.02%.
Further, the pressure of the crude argon of the feed gas compressor group outlet is 0.6MPaA, and temperature is 40 DEG C.
Further, in the step 2), in the rectifying separation of deoxidation tower, the deoxidation tower reboiler of deoxidation tower bottom
The required gas of deoxidation tower rectifying is provided, it is required that the deoxidation tower condenser/evaporator at the top of deoxidation tower provides deoxidation tower rectifying
Liquid；In the rectifying separation of pure argon column, the pure argon column reboiler of pure argon column bottom provides the required gas of pure argon column rectifying,
Pure argon column condenser/evaporator at the top of pure argon column provides the required liquid of pure argon column rectifying；
Wherein, the heat source of the deoxidation tower reboiler and pure argon column reboiler is the circulation argon from the argon gas circulatory system
Gas, low-temperature receiver is respectively the liquid of deoxidation tower bottom and the liquid of pure argon column bottom, and in heat transfer process, circulation argon gas liquefaction is liquid
Body, the liquid vaporization of tower bottom produce gas；
Wherein, the heat source of the deoxidation tower condenser/evaporator and pure argon column condenser/evaporator is respectively deoxidation crude argon and nitrogen
Gas, low-temperature receiver is liquid argon, and in heat transfer process, deoxidation crude argon and nitrogen are condensed into liquid respectively, and liquid argon vaporization produces gas,
Mixed from the vaporized gas of deoxidation tower condenser/evaporator and pure argon column condenser/evaporator and be sent into the argon gas circulatory system.
Further, the operating procedure of the nitrogen circulating system includes：
From the circulating air that ice chest comes out after the compression cooling of recycle compressor group, it is divided into two parts：
It is partly into after the supercharging of expanding machine pressurized end and enters main heat exchanger by being pressurized aftercooler cooling, from main heat exchange
Extraction is expanded into expander end in the middle part of device, and main heat exchanger re-heat is entered after decrease temperature and pressure and returns recycle compressor；
Another part enters main heat exchanger, after the circulating air cooling backflowed, is divided into two parts：It is partly into deoxidation tower
For reboiler as heat source, it discharges heat by phase transformation, vaporizes the liquid of deoxidation tower bottom, itself is liquefied as liquid；It is another
Part enters pure argon column reboiler as heat source, discharges heat by phase transformation, the liquid of vaporization pure argon column bottom, itself is liquefied
For liquid；Deoxidation tower condenser/evaporator is respectively enterd after the liquefied liquid throttling of deoxidation tower reboiler and the discharge of pure argon column reboiler
With pure argon column condenser/evaporator, deoxidation crude argon and nitrogen are then cooled down respectively and provides rectifying to be respectively deoxidation tower and pure argon column
Liquid；
Wherein, the liquid argon in deoxidation tower condenser/evaporator and pure argon column condenser/evaporator vaporizes generation gas respectively, the gas
The liquefied liquid not throttled that body is discharged respectively with deoxidation tower reboiler and pure argon column reboiler after mixing in subcooler into
Row heat exchange, the gas from subcooler become circulating air with the gas mixing after the expansion of expander end, pass through main heat exchanger
Re-heat cooling box, into recycle compressor group pressurized circulation.
Further, the pressure of the circulating air of recycle compressor group outlet is 1MPaA, 40 DEG C of temperature.
Further, the temperature of the part circulating air of the supercharging aftercooler outlet is 40 DEG C, and supercharging aftercooler goes out
The part circulating air of mouth enters main heat exchanger, and is retracted to expander end with about -90 DEG C in the middle part of main heat exchange and is expanded to
0.12MPaA。
Further, the recycling of step 3) crude argon is further included after step 2)：High-purity liquid argon is delivered to liquid argon storage tank
Carry out storage recycling；Further, further included after step 3) and be pumped to the high-purity liquid nitrogen respectively from liquid argon storage tank
The step of deoxidation tower condenser/evaporator and pure argon column condenser/evaporator.
Further, the oxygen content ＜ 1.5ppm in the deoxidation crude argon；Oxygen content in high-purity liquid argon
＜ 1.5ppm, nitrogen content ＜ 4ppm.
Compared with prior art, the utility model has the advantages that：
The utility model provides cold by circulator, while argon gas is purified, is also liquefied, made up to argon gas
The deficiency of the supporting space division of coal chemical industry；The utility model passes through reasonable disposition heat exchange process so that energy utilization optimizes, and reduces
The loss of cold, and argon gas is farthest recycled, reduce and waste, it is with certain economic benefit.
Brief description of the drawings
Fig. 1 is a kind of flow signal of the device of Full distillation purification recycling argon gas in one embodiment of the utility model
Figure；
Reference numeral in figure is as follows：
Feed gas compressor group 11, feed gas compressor 111, feed gas compressor aftercooler 112, main heat exchanger 12,
Deoxidation tower 13, deoxidation tower reboiler 131, deoxidation tower condenser/evaporator 132, pure argon column 14, pure argon column reboiler 141, pure argon column
Condenser/evaporator 142, subcooler 15, cycle compressor unit 21, recycle gas compressor 211, recycle gas compressor aftercooler
212nd, expanding machine 22, expanding machine pressurized end 221, supercharging aftercooler 222, expander end 223；
Feed pipe L1, deoxidation crude argon tracheae L2, deoxidation crude argon gas branch pipe L21, deoxidation crude argon condensate liquid return duct L22,
Liquid argon pipe L3, nitrogen tube L4, nitrogen branch pipe L41, nitrogen condensate liquid return duct L42, mixture pipe L5, oxygen-bearing liquid pipe L6, follow
Ring tracheae L7, circulating air recurrent canal L8, first circulation gas recurrent canal L81, first circulation airsetting liquid recurrent canal L82, second circulation
Gas recurrent canal L83, second circulation airsetting liquid recurrent canal L84, circulating air return to branch pipe L85, first circulation airsetting liquid returns to branch pipe
L86, regulating valve V1-V5.
Embodiment
The utility model provides a kind of device of Full distillation purification recycling argon gas, it includes：Crude argon purification recycling
System, it is included by the feed gas compressor group of pipeline connection, main heat exchanger, deoxidation tower, pure argon column, subcooler；Argon gas follows
Loop system, it includes the cycle compressor unit and expanding machine connected by pipeline, the cycle compressor unit and expanding machine
Corresponding equipment in recovery system is purified with crude argon respectively by corresponding pipeline to be attached；The utility model further relates to one
The method that kind carries out recycling argon gas by above device.
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and the protection model of the utility model cannot be limited with this
Enclose.
Embodiment 1
As shown in Figure 1, the crude argon that the synergy top of tower from coal chemical industry process matching space division comes out (contains Ar:~
85mol%, O2：~14.98%；N2：~0.02%) via feed pipe L1, be compressed to by feed gas compressor 111~
0.6MPaA, and~40 DEG C are cooled to by feed gas compressor cooler 112, into the main heat exchanger 12 in ice chest 1, at it
Condensing temperature is inside cooled to, enters 13 middle and lower part of deoxidation tower after adjusted valve V1 throttlings.In deoxidation tower 13, the deoxidation of its bottom of towe
Tower reboiler 131 provides the required gas of 13 rectifying of deoxidation tower, and the deoxidation tower condenser/evaporator 132 of its tower top is deoxidation tower 13
Liquid needed for rectifying is provided.Crude argon is condensed with the gas mixing that deoxidation tower reboiler 131 provides as gas, deoxidation tower is risen
For the liquid that evaporator 132 provides as lower descending liquid, both carry out rectifying in deoxidation tower.Oxygen component is split into the liquid of bottom of towe
In pass through oxygen-bearing liquid pipe L6 discharge.Oxygen content is obtained from the top of deoxidation tower 13<The deoxidation crude argon of 1.5ppm is thick by deoxidation
Tunger tube L2, and after regulating valve V2 controls, into the middle part of pure argon column 14.In order to maintain the separative efficiency in deoxidation tower 13,
The oxygen of its bottom of towe and the gaseous mixture of argon gas discharge after recycling cold by main heat exchanger 12 via mixture pipe L5.
The foundation of 14 rectifying operating mode of pure argon column is also to provide liquid and tower by the pure argon column condenser/evaporator 142 of top of tower
The pure argon column reboiler 141 of bottom provides gas.The gas mixing that deoxidation crude argon is provided with pure argon column reboiler 141 is as upper
Gas is risen, for the liquid that pure argon column condenser/evaporator 142 provides as lower descending liquid, both carry out rectifying in pure argon column.In pure argon column
What is mainly removed in 14 is the component than argon gas low boiling point such as nitrogen component, is obtained in the bottom of pure argon column 14 satisfactory high-purity
Liquid argon (oxygen-containing 1.5ppm, nitrogenous 4ppm), it is sent out ice chest and is sent into liquid argon storage tank progress after being extracted by high-purity liquid nitrogen pipe L3
Store, liquid argon can be pumped to deoxidation tower condenser/evaporator 132 and pure argon column condenser/evaporator 142 as cold in the liquid argon storage tank
Source.
Low temperature, the required cold of argon gas liquefaction in ice chest 1 are mainly provided by the argon gas circulatory system.Go out from ice chest 1
The argon gas come is compressed to 1MPaA by recycle compressor 211, cools to 40 DEG C by recycle compressor cooler 212, is then divided into
Two parts, by supercharging after a part of supercharging of expanding machine pressurized end 221 for entering expanding machine 22 by circulating air return branch pipe L85
Aftercooler 222 is cooled to 40 DEG C of main heat exchangers 12 entered in ice chest 1, is retracted to from the middle part of main heat exchanger 12 (about -90 DEG C)
The expander end 223 of expanding machine 21 is expanded to 0.12MPaA, and 12 re-heat of main heat exchanger is entered after decrease temperature and pressure and returns circulation pressure
Contracting unit 21.
Another part enters the main heat exchanger 12 of ice chest 1 by circulating air recurrent canal L8, and the gas to be backflowed is cooled to liquid
Change point, be divided into two parts, a part enters 131 high temperature side of deoxidation tower reboiler by first circulation gas recurrent canal L81, passes through phase
Become release heat, vaporize the liquid of low temperature side, provide gas for 13 rectifying of deoxidation tower, itself be liquefied as liquid.Another part
141 high temperature side of pure argon column reboiler is entered by second circulation gas recurrent canal L82, heat is discharged by phase transformation, vaporizes low temperature side
Liquid, provide gas for 14 rectifying of pure argon column, itself be liquefied as liquid.The liquefier that two reboilers 131,141 come out
Body is respectively via first circulation airsetting liquid recurrent canal L82 and second circulation airsetting liquid recurrent canal L84, and pass through regulating valve V3 respectively
Enter deoxidation tower condenser/evaporator 132 and pure argon column condenser/evaporator 142 after throttling with regulating valve V4, cool down deoxidation tower 13 and essence
The gas at the top of argon column 14, rectifying liquid is provided for two towers；The part deoxidation crude argon at the wherein top of deoxidation tower 13 passes through de-
The branch of oxygen crude argon tracheae L2-deoxidation crude argon gas branch pipe L21 enters deoxidation tower condenser/evaporator 132, its lime set is thick by deoxidation
Argon gas condensate liquid return duct L22 is back to deoxidation tower 13；Branch-nitrogen that the part nitrogen at the top of pure argon column 14 passes through nitrogen tube L4
Gas branch pipe L41 enters pure argon column condenser/evaporator 142, its lime set is back to pure argon column 14 by nitrogen condensate liquid return duct L42,
Remaining nitrogen discharges after recycling cold via main heat exchanger 12 by nitrogen tube L4.Deoxidation tower condenser/evaporator 132 and pure argon column
After liquid in condenser/evaporator 142 vaporizes in itself, through mixing what is discharged respectively with deoxidation tower reboiler and pure argon column reboiler
The liquefied liquid not throttled exchanges heat in subcooler 17, passes through circulating gas pipe L7 and expansion from the gas that subcooler 17 is discharged
The gas mixing that machine expanding end 223 exports, by 12 re-heat cooling box 1 of main heat exchanger, is followed into the pressurization of recycle compressor group 21
Ring.
In the above-described embodiments, first circulation airsetting liquid recurrent canal L82 sets the towards pure argon column condenser/evaporator 142
One circulating air lime set returns to branch pipe L86, and the first circulation airsetting liquid returns to branch pipe L86 and sets regulating valve V5；The deoxidation tower
Reboiler 131, deoxidation tower condenser/evaporator 132, pure argon column reboiler 133, pure argon column condenser/evaporator 134 are that immersion changes
Hot device；The deoxidation tower 13 and pure argon column 14 use structured packing structure, it is respectively provided with two sections of fillers (also can be according to actual conditions
It is adjusted).
From above-described embodiment, the utility model provides cold by circulator, while argon gas is purified, also to argon
Gas is liquefied, and compensate for the deficiency of theme space division；Pass through reasonable disposition heat exchange process at the same time so that energy utilization is optimal
Change, reduce the loss of cold, and farthest recycle argon gas, reduce and waste, it is with certain economic benefit.
Specific embodiment of the utility model is described in detail above, but it is intended only as example, and this practicality is new
Type is not restricted to particular embodiments described above.To those skilled in the art, it is any that the utility model is carried out
Equivalent modifications and substitute also all among the category of the utility model.Therefore, the spirit and model of the utility model are not being departed from
Lower made impartial conversion and modification are enclosed, should all be covered in the scope of the utility model.
Claims (10)
- A kind of 1. device of Full distillation purification recycling argon gas, it is characterised in that includingCrude argon purifies recovery system, its feed gas compressor group (11) for including connecting by pipeline, main heat exchanger (12), take off Oxygen column (13), pure argon column (14), subcooler (15), wherein, the main heat exchanger (12), deoxidation tower (13), pure argon column (14) and Subcooler (15) is arranged in ice chest (1), and the deoxidation tower (13) is including being arranged at the deoxidation tower of deoxidation tower (13) bottom again Device (131) and the deoxidation tower condenser/evaporator (132) being arranged at the top of deoxidation tower (11) are boiled, the pure argon column (14) includes setting Pure argon column reboiler (141) and the pure argon column condenser/evaporator that is arranged at the top of pure argon column (14) in pure argon column (14) bottom (142)；The argon gas circulatory system, it includes the cycle compressor unit (21) and expanding machine (22) connected by pipeline, the circulation Air compressor group (21) and expanding machine (22) purify corresponding equipment in recovery system with crude argon respectively by corresponding pipeline It is attached.
- A kind of 2. device of Full distillation purification recycling argon gas according to claim 1, it is characterised in that the material pressure Contracting unit (11) includes the feed gas compressor (111) and feed gas compressor aftercooler (112) of pipeline connection successively, described Cycle compressor unit (21) includes the recycle gas compressor (211) and recycle gas compressor aftercooler of pipeline connection successively (212), the expanding machine (22) includes the expanding machine pressurized end (221) of pipeline connection, supercharging aftercooler (222) and swollen successively Swollen machine expanding end (223)；Wherein described expander end (223) is arranged in the ice chest (1).
- 3. the device of a kind of Full distillation purification recycling argon gas according to claim 1, it is characterised in that the deoxidation tower is again It is heavy to boil device (131), deoxidation tower condenser/evaporator (132), pure argon column reboiler (133), pure argon column condenser/evaporator (134) Immersion heat exchanger.
- A kind of 4. device of Full distillation purification recycling argon gas according to claim 1, it is characterised in that the deoxidation tower (13) and pure argon column (14) uses structured packing structure, random packing structure or sieve plate tower structure.
- A kind of 5. device of Full distillation purification recycling argon gas according to claim 2, it is characterised in that the crude argon air lift The connecting line of each equipment in pure recovery system includes：For crude argon to be passed sequentially through feed gas compressor group (11), main heat exchanger (12) sent to deoxidation tower (13) middle and upper part Feed pipe (L1)；For by deoxidation crude argon from sending at the top of deoxidation tower (13) to the deoxidation crude argon tracheae (L2) in the middle part of pure argon column (14) with And the liquid argon pipe (L3) for sending out high-purity liquid argon from pure argon column (14) bottom；For being sent deoxidation crude argon in part to the deoxidation crude argon of deoxidation tower condenser/evaporator (132) from deoxidation crude argon tracheae (L2) Gas branch pipe (L21) and deoxidation crude argon condensate liquid is returned to deoxidation crude argon condensate liquid return duct at the top of deoxidation tower (13) (L22)；For nitrogen to be sent out to the nitrogen tube (L4) discharged after main heat exchanger (22) recycles cold at the top of pure argon column (14), For being sent part nitrogen to the nitrogen branch pipe (L41) of pure argon column condenser/evaporator (142) from nitrogen tube (L4) and by nitrogen Condensate liquid returns to the nitrogen condensate liquid return duct (L42) at the top of pure argon column (14);For being sent out the gaseous mixture of nitrogen and oxygen by main heat exchanger (12) recycling cold heel row from denitrification column (13) lower part The mixture pipe (L5) put, for the oxygen-bearing liquid pipe (L6) by oxygen-bearing liquid from deoxidation tower (13) bottom discharge.
- A kind of 6. device of Full distillation purification recycling argon gas according to claim 5, it is characterised in that the argon gas circulation The connecting line of each equipment and each equipment in crude argon purification recovery system includes in system：For the mixed argon for discharging the top of deoxidation tower condenser/evaporator (132) and pure argon column condenser/evaporator (142) Gas circulating air is sent to the circulating gas pipe of cycle compressor unit (11) after recycling cold via subcooler (15), main heat exchanger (12) (L7)；For being sent circulating air to the circulating air recurrent canal (L8) of main heat exchanger (12) from cycle compressor unit (11)；For being sent part circulating air to the first circulation gas recurrent canal of deoxidation tower reboiler (131) from main heat exchanger (12) (L81) and the first circulation airsetting liquid for part circulating air condensate liquid to be back to deoxidation tower condenser/evaporator (132) returns Return pipe (L82)；For being sent part circulating air to the second circulation gas recurrent canal of pure argon column reboiler (141) from main heat exchanger (12) (L83) and the second circulation airsetting liquid for part circulating air condensate liquid to be back to pure argon column condenser/evaporator (142) returns Return pipe (L84).
- 7. the device of a kind of Full distillation purification recycling argon gas according to claim 6, it is characterised in that the circulating air returns Circulating air is set to return to branch pipe (L85) on return pipe (L8), which returns to branch pipe (L85) and be used to successively pass through part circulating air Sent back to and closed by expanding machine pressurized end (221), supercharging aftercooler (222), main heat exchanger (12), expander end (223) And the circulating gas pipe (L7) exported to subcooler (15).
- A kind of 8. device of Full distillation purification recycling argon gas according to claim 6, it is characterised in that first circulation airsetting The first circulation airsetting liquid for being connected to pure argon column condenser/evaporator (142) is set to return to branch pipe (L86) on liquid recurrent canal (L82).
- A kind of 9. device of Full distillation purification recycling argon gas according to claim 8, it is characterised in that the main heat exchanger (12) feed pipe (L1) of outlet, deoxidation crude argon tracheae (L2), first circulation airsetting liquid recurrent canal (L82), second circulation airsetting Liquid recurrent canal (L84), first circulation airsetting liquid return and are respectively provided with regulating valve (V1-V5) on branch pipe (L86).
- 10. the device of a kind of Full distillation purification recycling argon gas according to claim 1, it is characterised in that the device also wraps Include the liquid nitrogen storage tank for storing high-purity liquid nitrogen.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721397642.5U CN207317371U (en) | 2017-10-26 | 2017-10-26 | A kind of device of Full distillation purification recycling argon gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721397642.5U CN207317371U (en) | 2017-10-26 | 2017-10-26 | A kind of device of Full distillation purification recycling argon gas |
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| CN201721397642.5U Active CN207317371U (en) | 2017-10-26 | 2017-10-26 | A kind of device of Full distillation purification recycling argon gas |
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| CN (1) | CN207317371U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108507276A (en) * | 2018-06-05 | 2018-09-07 | 上海联风能源科技有限公司 | A kind of Full distillation purification recycling argon system and method without expanding machine |
| CN108645118A (en) * | 2018-06-07 | 2018-10-12 | 上海联风能源科技有限公司 | A kind of device and method improving the argon gas rate of recovery |
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2017
- 2017-10-26 CN CN201721397642.5U patent/CN207317371U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108507276A (en) * | 2018-06-05 | 2018-09-07 | 上海联风能源科技有限公司 | A kind of Full distillation purification recycling argon system and method without expanding machine |
| CN108645118A (en) * | 2018-06-07 | 2018-10-12 | 上海联风能源科技有限公司 | A kind of device and method improving the argon gas rate of recovery |
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