CN209428132U - The equipment of concentrated krypton-xenon concentrate in a kind of liquid oxygen - Google Patents
The equipment of concentrated krypton-xenon concentrate in a kind of liquid oxygen Download PDFInfo
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- CN209428132U CN209428132U CN201821845169.7U CN201821845169U CN209428132U CN 209428132 U CN209428132 U CN 209428132U CN 201821845169 U CN201821845169 U CN 201821845169U CN 209428132 U CN209428132 U CN 209428132U
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Abstract
The utility model relates to a kind of equipment of concentrated krypton-xenon concentrate in liquid oxygen, and including rectifying column, condenser/evaporator, the nitrogen circulation compressor, low-temperature adsorber in liquid oxygen pump and ice chest, low-temperature adsorber is connected in the middle part of liquid oxygen pump, rectifying column respectively by pipeline；Rectifying tower bottom is equipped with reboiler, and the pressure nitrogen gas import of reboiler is connect by pipeline with nitrogen circulation compressor, and the liquid nitrogen outlet of reboiler is connect by pipeline with condenser/evaporator, and the krypton-xenon concentrate outlet at rectifying tower bottom is connected with the external world；The oxygen steam (vapor) outlet of the top of the distillation column is connected with condenser/evaporator, the external world respectively by pipeline, and the liquid oxygen outlet of condenser/evaporator is connected by pipeline with the top of the distillation column；The nitrogen outlet of condenser/evaporator, user pipe are connected with nitrogen circulation compressor by pipeline.The utility model it is easy to operate, highly-safe, at low cost, low energy consumption, while producing krypton-xenon concentrate, it is possible to provide liquid nitrogen, liquid oxygen or both produce simultaneously.
Description
Technical field
The utility model relates to a kind of equipment of concentrated krypton-xenon concentrate in liquid concentration field more particularly to liquid oxygen.
Background technique
Krypton and xenon content in atmosphere respectively may be about 1.138 × 10-6With 0.0857 × 10-6, micro krypton and xenon with air into
After the low-temperature fractionating tower for entering air-separating plant, high boiling component krypton, xenon, hydrocarbon (mainly methane) and fluoride
It accumulates in the liquid oxygen of lower pressure column.
Such as want to carry out the concentration of krypton xenon to built external compression air separation equipment, it is common practice that liquid oxygen is sent into one
Additional rectification column (being commonly called as poor krypton column) carries out rectifying.It can get the poor krypton-xenon concentrate that krypton xenon content is 0.2~0.3%Kr+Xe,
Wherein methane content is about 0.3~0.4%.Cold source and heat source are done usually using pressure nitrogen gas.
Utility model patent " a kind of 201410036253.4 device and method that crude krypton xenon is extracted from liquid oxygen " uses
Complex process, thus cost can be high.Therefore, those skilled in the art is dedicated to the equipment for developing the concentration of krypton xenon, provides one
Kind concentrated krypton-xenon concentrate, easy to operate, highly-safe, at low cost, equipment that low energy consumption from liquid oxygen.
Utility model content
The utility model is in operation space division, and heavy constituent (substance that boiling point is higher than oxygen) is concentrated in liquid oxygen
The characteristics of, provide the equipment that krypton xenon is further concentrated to get krypton-xenon concentrate.
The technical problems to be solved in the utility model be by the following technical programs realize:
The utility model is a kind of equipment of concentrated krypton-xenon concentrate in liquid oxygen, including the rectifying in liquid oxygen pump and ice chest
Tower, condenser/evaporator, nitrogen circulation compressor, low-temperature adsorber, the low-temperature adsorber by pipeline respectively with the liquid oxygen
Liquid oxygen import in the middle part of pump, rectifying column is connected；The rectifying tower bottom is equipped with reboiler, the pressure nitrogen gas import of the reboiler
Exported and connected by the pressure nitrogen gas of pipeline and the nitrogen circulation compressor, the liquid nitrogen outlet of the reboiler by pipeline with
The condenser/evaporator connection, and the krypton-xenon concentrate outlet at the rectifying tower bottom is connected with the external world；Described the top of the distillation column
Oxygen steam (vapor) outlet by pipeline respectively with the condenser/evaporator, extraneous be connected, in which: the liquid oxygen of the condenser/evaporator goes out
Mouth is connected by pipeline with described the top of the distillation column；The nitrogen outlet of the condenser/evaporator passes through pipeline and the nitrogen circulation
Compressor is connected；The nitrogen circulation compressor is connected by pipeline with the user pipe.
Preferably, the liquid oxygen outlet, liquid nitrogen outlet of the condenser/evaporator are connected by pipeline with the external world.
Preferably, the ice chest further includes main heat exchanger, the pressure nitrogen gas import and the nitrogen circulation of the reboiler
The pipeline that the pressure nitrogen gas outlet of compressor is connected passes through the main heat exchanger.
Preferably, the nitrogen of the oxygen steam (vapor) outlet of described the top of the distillation column is connected with the external world pipeline, the condenser/evaporator
The pipeline that gas outlet is connected with the external world passes through the main heat exchanger.
Preferably, the equipment further includes the throttle valve in each connecting pipe.
Compared with prior art, the utility model has the following technical effect that
The utility model is a kind of equipment of concentrated krypton-xenon concentrate in liquid oxygen, by the way that the nitrogen circulation compression is arranged
Machine provides a nitrogen circulation conversion, for the nitrogen of the cold source of heat source and the condenser/evaporator as the reboiler
It is formed and is recycled, made the environmental protection of utility model works process, save, reduce and be produced into, reduce energy consumption.The utility model
It is easy to operate, at low cost, low energy consumption, while producing krypton-xenon concentrate, in addition can according to client's needs, provide liquid nitrogen,
Liquid oxygen or both produces simultaneously.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the equipment of concentrated krypton-xenon concentrate in the utility model liquid oxygen；
Appended drawing reference indicates explanation in description above:
1- ice chest；2- main heat exchanger；3- reboiler；4- rectifying column；5- condenser/evaporator；6- liquid oxygen pump；7- nitrogen circulation
Compressor；8- low-temperature adsorber.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise for not making creative work
Under every other embodiment obtained, fall within the protection scope of the utility model.
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but not as the utility model
It limits.
As shown in Figure 1, the utility model provides a kind of equipment of concentrated krypton-xenon concentrate in liquid oxygen, including 6 He of liquid oxygen pump
Rectifying column 4, condenser/evaporator 5, nitrogen circulation compressor 7, low-temperature adsorber 8 in ice chest 1, the low-temperature adsorber 8 pass through
Pipeline is connected with the liquid oxygen import of the liquid oxygen pump 6,4 middle part of rectifying column respectively；4 tower bottom of rectifying column is equipped with reboiler 3, institute
The pressure nitrogen gas import for stating reboiler 3 is connected by the outlet of the pressure nitrogen gas of pipeline and the nitrogen circulation compressor 7, described
The liquid nitrogen outlet of reboiler 3 is connect by pipeline with the condenser/evaporator 5, and the krypton-xenon concentrate of 4 tower bottom of the rectifying column
Outlet is connected with the external world；The oxygen steam (vapor) outlet of 4 tower top of rectifying column by pipeline respectively with the condenser/evaporator 5, extraneous
It is connected, in which: the liquid oxygen outlet of the condenser/evaporator 5 is connected by pipeline with 4 tower top of rectifying column；The condensation evaporation
The nitrogen outlet of device 5 is connected by pipeline with the nitrogen circulation compressor 7；The nitrogen circulation compressor 7 by pipeline with
The user pipe is connected.
In one preferred embodiment of the utility model, liquid oxygen outlet, the liquid nitrogen outlet of the condenser/evaporator 5 pass through pipe
Road is connected with the external world.
In one preferred embodiment of the utility model, the ice chest further includes main heat exchanger 2, the pressure of the reboiler 3
The pipeline that power nitrogen inlet is connected with the outlet of the pressure nitrogen gas of the nitrogen circulation compressor 7 is by the main heat exchanger 2.
In one preferred embodiment of the utility model, what the oxygen steam (vapor) outlet of 4 tower top of rectifying column was connected with the external world
Pipeline, the pipeline that the nitrogen outlet of the condenser/evaporator 5 is connected in the external world pass through the main heat exchanger 2.
In one preferred embodiment of the utility model, the equipment further includes the throttling in each connecting pipe
Valve.
The method that crude krypton xenon is extracted from liquid oxygen using the utility model equipment as described above, process are as follows:
The liquid oxygen that space division generates is sent into the ice chest after the liquid oxygen pump 6 is forced into, through pipeline LO-201, into
Enter 4 middle part of rectifying column, participates in rectifying concentration.The space division liquid oxygen for just having inputted 4 middle part of rectifying column is mixed under tower top stream
In liquid, caloic is carried out on filler (or sieve plate) with the oxygen steam that tower bottom rises and is exchanged, light component (oxygen, nitrogen, argon gas
Deng) enter in gas, heavy constituent (the boiling point component higher than oxygen) is enriched in a liquid, finally flows into tower bottom.The rectifying column
4 tower bottom are equipped with the reboiler 3, do heat source using pressure nitrogen gas, evaporate the liquid oxygen in tower reactor, provide rising gas for entire rectifying
Body.The oxygen of 4 tower top of rectifying column is extracted out after separating heavy, through pipeline GO-202 from tower top, is divided into two parts: one
Partial oxidation sends out ice chest 1 as product after piping GO-203 is sent to 2 re-heat of main heat exchanger, flows through pipeline GO-204, secondary
When product is liquid oxygen, this part is without flow；It is liquid that another part oxygen, which enters the condenser/evaporator 5 by liquid nitrogen condensation,.From
Be divided into two strands in the liquid oxygen of liquid oxygen outlet LO-204 after the outflow of condenser/evaporator 5: one liquid oxygen is sent as phegma
Enter 4 tower top of rectifying column, and participates in rectifying concentration process；Another strand of liquid oxygen, through piping LO-205, passes through as byproduct
Pipeline extracts the ice chest out.
In 4 tower bottom of rectifying column, what is obtained is the liquid oxygen of recombination separating/enriching, especially krypton xenon and methane-rich, as
Krypton-xenon concentrate, for the krypton-xenon concentrate as product, the pipeline LO-205 exported through the krypton-xenon concentrate sends out ice chest 1, can
Flow into storage tank or subsequent processing.
The cold source of the heat source of the reboiler and the condenser/evaporator is mentioned by the nitrogen circulation conversion of the method
For.1950Nm3The nitrogen of/h first passes around nitrogen circulation compressor 7 and is forced into 0.7MPaA, and is cooled to 40 through subcooler
DEG C, it inputs in the pipeline GN-101 of the pressure nitrogen gas import.The pressure nitrogen gas enters 2 hot end of main heat exchanger in ice chest 1
It is cooling, 3 hot end of the reboiler of 4 tower bottom of rectifying column is entered through piping GN-102, liquefy for liquid nitrogen come for it is described again
It boils device 3 and heat source is provided.The liquid nitrogen from the reboiler 3 come out after through pipeline LN-103, and by throttle valve V2 decompression after,
It is sent into the condenser/evaporator 5 for being located at 1 top of ice chest, provides cold source for the condenser/evaporator 5.Wherein, this is cold
The oxygen condensation of 5 other side of condenser/evaporator is liquid oxygen by source, and part liquid nitrogen heat absorption is vaporizated into nitrogen through piping GN-
105, it is sent into 2 re-heat of main heat exchanger and recycles cooling capacity, ice chest 1 is sent out by the nitrogen outlet.In the technique that byproduct is liquid oxygen
In, which can be sent back to user or directly emptying；When byproduct is liquid nitrogen, the side of 5 liquid of condenser/evaporator, portion
Liquid separation nitrogen sends out ice chest after the liquid nitrogen transfer valve V5 that the liquid nitrogen exports as product, and is conveyed to user.
The utility model is easy to operate, can be used for producing krypton-xenon concentrate, in addition can according to client's needs, provide liquid nitrogen,
Liquid oxygen or both produces simultaneously, and the nitrogen circulation technique used by the way that nitrogen circulation compressor is added reduces the magnitude of recruitment of nitrogen,
It cuts operating costs.
Specific embodiment of the utility model is described in detail above, but it is merely an example, this is practical new
Type is not restricted to particular embodiments described above.To those skilled in the art, any pair of the utility model carries out
Equivalent modifications and substitution also all among the scope of the utility model.Therefore, in the spirit and model for not departing from the utility model
Lower made equal transformation and modification are enclosed, should all be covered in the scope of the utility model.
Claims (6)
1. the equipment of concentrated krypton-xenon concentrate in a kind of liquid oxygen, which is characterized in that including ice chest (1), be set in ice chest (1)
Main heat exchanger (2), rectifying column (4), condenser/evaporator (5), nitrogen circulation compressor (7) and low-temperature adsorber (8), the low temperature
Absorber (8) is connect by pipeline with the liquid oxygen import in the middle part of the rectifying column (4)；User pipe passes through pipeline and the nitrogen
The nitrogen inlet of recycle compressor (7) connects, and the nitrogen circulation compressor (7) is connected by pipeline through the main heat exchanger (2)
Connect the pressure nitrogen gas import of the rectifying column (4) tower bottom reboiler (3), the liquid nitrogen outlet of the reboiler (3) by pipeline with
Condenser/evaporator (5) connection, and the krypton-xenon concentrate outlet of the rectifying column (4) tower bottom is connect with the 5th extraneous pipeline；
The oxygen steam (vapor) outlet of rectifying column (4) tower top is connected with the condenser/evaporator (5), the first extraneous pipeline respectively by pipeline
It connects；The liquid oxygen outlet of the condenser/evaporator (5) is connect by pipeline with the rectifying column (4) tower top；The condenser/evaporator
(5) nitrogen outlet is connect by pipeline with the nitrogen inlet of the nitrogen circulation compressor (7).
2. the equipment of concentrated krypton-xenon concentrate in liquid oxygen according to claim 1, which is characterized in that the condenser/evaporator
(5) liquid oxygen outlet is also connect with third external world pipeline by pipeline, and the liquid nitrogen outlet of the condenser/evaporator (5) passes through pipeline
It is connect with the 4th extraneous pipeline.
3. the equipment of concentrated krypton-xenon concentrate in liquid oxygen according to claim 1, which is characterized in that further include liquid oxygen pump
(6), the liquid oxygen pump (6) connect with the liquid oxygen import of low-temperature adsorber (8) described in ice chest.
4. the equipment of concentrated krypton-xenon concentrate in liquid oxygen according to claim 3, which is characterized in that the rectifying column (4)
(4) the oxygen steam (vapor) outlet of tower top is connect by the main heat exchanger (2) with the described first extraneous pipeline, the condenser/evaporator
(5) nitrogen outlet is connect by the main heat exchanger (2) with the nitrogen inlet of the nitrogen circulation compressor (7).
5. the equipment of concentrated krypton-xenon concentrate in liquid oxygen according to claim 1, which is characterized in that further include being set to each company
Throttle valve on adapter tube road.
6. the equipment of concentrated krypton-xenon concentrate in liquid oxygen according to claim 1, which is characterized in that the low-temperature adsorber
It (8) there are two setting, and is parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821845169.7U CN209428132U (en) | 2018-11-09 | 2018-11-09 | The equipment of concentrated krypton-xenon concentrate in a kind of liquid oxygen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821845169.7U CN209428132U (en) | 2018-11-09 | 2018-11-09 | The equipment of concentrated krypton-xenon concentrate in a kind of liquid oxygen |
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| Publication Number | Publication Date |
|---|---|
| CN209428132U true CN209428132U (en) | 2019-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821845169.7U Active CN209428132U (en) | 2018-11-09 | 2018-11-09 | The equipment of concentrated krypton-xenon concentrate in a kind of liquid oxygen |
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| CN (1) | CN209428132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023697A (en) * | 2019-11-20 | 2020-04-17 | 郝文炳 | Method and device for reducing liquid nitrogen usage amount in refining of krypton and xenon |
-
2018
- 2018-11-09 CN CN201821845169.7U patent/CN209428132U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023697A (en) * | 2019-11-20 | 2020-04-17 | 郝文炳 | Method and device for reducing liquid nitrogen usage amount in refining of krypton and xenon |
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