CN205939930U - Separation 20Ne's device in follow neon - Google Patents
Separation 20Ne's device in follow neon Download PDFInfo
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- CN205939930U CN205939930U CN201620832766.0U CN201620832766U CN205939930U CN 205939930 U CN205939930 U CN 205939930U CN 201620832766 U CN201620832766 U CN 201620832766U CN 205939930 U CN205939930 U CN 205939930U
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Abstract
The utility model provides a separation 20Ne's device in follow neon, the device includes: compressor (1), cooler, splitter (2) to and a plurality of valves and pipeline, the splitter includes in (2): high temperature section heat exchanger (3), liquid nitrogen cooling ware (4), cold shield (5), lower temperature section heat exchanger (6), condensing evaporator (9), rectifying column (11) and governing valve (7) and governing valve (8), wherein, condensing evaporator (9) have condensing evaporator shell (10), the bottom of rectifying column (11) is provided with at the bottom of the rectifying column electric heater (12). Gaseous purity and the output of 20Ne of using the separation of above -mentioned device to obtain all is superior to prior art, consequently, the utility model provides a technical scheme has good application prospect.
Description
Technical field
The utility model is related to a kind of Ne isotopic separating-purifying device and in particular to one kind separates from neon20Ne
Device.
Background technology
Ne（Neon）It is a kind of chemical element, its atomic number is 10, existed with simple substance in nature, referred to as neon,
It is a kind of rare inert gas.Ne mainly has three kinds of isotopes：20Ne、21Ne and22Ne, wherein20Ne accounts for 90.48%,22Ne accounts for 9.25%, and21Ne then only accounts for small part.
In prior art, 1956《The Journal Of Chemical Physics》24th phase reported Ke Laoxiu
This et al. has prepared more than 99% with general Clusius-Dickel column22Ne and20Ne and 13%21Ne, is then made auxiliary with deuterium methane
Gas is helped to incite somebody to action21Ne is further concentrated to 99.6%；And in 1940, the research team of Clausius was successfully extracted 99.8%
's20Ne and 99.7%22Each 2.5 liters of Ne.
United States Atomic Energy Commission's Mound laboratory report in 1969, they adopt four post level Four Thermal Diffusion Column cascades point
From neon isotope, 99.95% can be obtained with the yield of 4.2 liters/day20Ne, obtains 2.0% with the yield of 0.56 liter/day21Ne, obtains 99.8% with the yield of 0.22 liter/day22Ne.However, abundant Ne isotope gas are prepared using the method,
Often there is the defect yielding poorly with long the production cycle.
At present, thermal diffusion method is more ripe method in Ne isotopic separation purification, but thermal diffusion method yet suffers from producing
Measure low, the defect such as cycle length, be also unsuitable for large-scale industrial production.
Cryogenic rectification method, is a kind of method being suitable to industrialized production, however, not having corresponding low temperature in prior art
Rectifying separator is pointedly used for separating20Ne；Therefore, develop a kind of separation being suitable to large-scale industrial production20Ne
Device, become one of study hotspot of current this area research staff.
Utility model content
The utility model is intended to overcome many disadvantages present in above-mentioned prior art, and provides one kind efficiently from neon
In isolate high-purity20The device of Ne.For reaching this purpose, inventor intends adopting cryogenic rectification method, to isolate height on a large scale
Purity20Ne, and obtain required yield.
Therefore, the utility model provides a kind of separation from neon20The device of Ne, described device includes：
Compressor 1, cooler, separation equipment 2, and some valves and pipeline；
Wherein, include in described separation equipment 2：High-temperature section heat exchanger 3, liquid nitrogen cooler 4, cold screen 5, low-temperature zone heat exchanger
6th, condenser/evaporator 9, rectifying column 11 and regulating valve 7 and regulating valve 8；Wherein, described condenser/evaporator 9 has condenser/evaporator
Shell 10, the bottom of described rectifying column 11 is provided with rectifying column bottom electric heater 12；
Wherein, high-purity N e unstripped gas feeding line is merged before described compressor 1 with circulation neon pipeline, and, described
Compressor 1 is connected with cooler, and described cooler accesses described separation equipment 2 by pipeline；High-purity N e unstripped gas and circulation neon
Gas first compresses through described compressor 1 after merging, then obtains compressing the neon of cooling through the cooling of described cooler；
Wherein, high-temperature section heat exchanger 3, liquid nitrogen cooler 4 and low-temperature zone heat exchanger 6 are arranged in series, for cooling down further
The neon of described compression cooling, and export low temperature neon；The line branches of output low temperature neon are two-way, wherein arrange on the way
There is regulating valve 7, for carrying out rectifying by sending into rectifying column 11 after low temperature neon expenditure and pressure；Wherein separately it is provided with regulation on the way
Valve 8, for by after low temperature neon expenditure and pressure, generating liquid Ne and being conveyed into the condensation evaporation being arranged on rectifying column 11 top
Device 9；
Wherein, described liquid nitrogen cooler 4, described low-temperature zone heat exchanger 6, described rectifying column 11 and described condenser/evaporator 9
All it is housed inside in the space that cold screen 5 surrounds, and described space keeps 1 × 10-4Pa to 1 × 10-3The vacuum of Pa；Wherein, institute
State the internal logical liquid nitrogen of cold screen 5, for maintaining the worst cold case in described space；
The condensation side of described condenser/evaporator 9 is provided with condensate reflux line, for condensation Ne liquid is back to described essence
Evaporate in tower 11；The evaporation side of described condenser/evaporator 9 is respectively arranged with a kind of refrigeration cycle with the top of described condenser/evaporator 9
Neon by-pass line, forms kind of refrigeration cycle neon Trunk Line after merging, extends and passes sequentially through described low-temperature zone heat exchanger 6 and described height
After temperature section heat exchanger 3, connect to described circulation neon pipeline；The bottom of described rectifying column 11 is provided with a bottom of towe neon liquid output
Pipeline, extends and passes sequentially through described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3, finally stretch out described separation equipment 2 simultaneously
Extend to the outside of described device；The tower top of described rectifying column 11 is provided with one20Ne gas products export pipeline, extends successively
By described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3, finally export to user or storage.
Using said apparatus, research and development or producers can implement according to following steps20The separation of Ne：
High-purity N e unstripped gas is merged with circulation neon, is conveyed into compressor 1 and is compressed to 7 ~ 9 MPa（g）, then cooled
Device is cooled down, and obtains compressing the neon of cooling；Then, the neon of described compression cooling is conveyed into separation equipment 2；
In described separation equipment 2：Described compression cooling neon be introduced into high-temperature section heat exchanger 3 be cooled to -140 DEG C ~ -
150 DEG C, subsequently enter liquid nitrogen cooler 4 and be cooled to -190 DEG C ~ -195 DEG C, finally enter low-temperature zone heat exchanger 6 and cool down further
To -219 DEG C ~ -224 DEG C, export low temperature neon；Described low temperature neon splits into two strands, and wherein one is subtracted by regulating valve 7 throttling
It is depressed into 0.1～0.2MPa（g）Afterwards, enter rectifying column 11 and carry out rectifying；Wherein another stock passes through regulating valve 8 expenditure and pressure extremely
0.02MPa（g）Afterwards, generate liquid Ne, be conveyed into the condenser/evaporator 9 being arranged on rectifying column 11 top and as low-temperature receiver；
Wherein, it is filled with structured packing inside described rectifying column 11, mainly contain in neon to be separated22Ne and20Ne group
Point；Wherein,22Ne boiling point is of a relatively high, therefore gathers in a liquid；20Ne boiling point is relatively low, gathers therefore in gas.
Described condenser/evaporator 9 has condenser/evaporator shell 10, and the bottom of described rectifying column 11 is provided with rectifying column bottom
Electric heater 12, obtains rising gas to the heating of bottom of towe liquid by this rectifying column bottom electric heater 12；Described condenser/evaporator 9
Condensation side produces condensation Ne liquid, is back in described rectifying column 11, becomes the dropping liq in tower；Described condenser/evaporator 9
Evaporation side generates one kind of refrigeration cycle neon, after merging, successively through described low-temperature zone respectively with the top of described condenser/evaporator 9
Heat exchanger 6 and described high-temperature section heat exchanger 3 reclaim cold, generate described circulation neon；The bottom of described rectifying column 11 generates one
Stock bottom of towe neon liquid, reclaims cold through described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3, successively afterwards from described separation
Equipment 2 is discharged；
Wherein, the evaporating pressure of the condenser/evaporator 9 described in pressure ratio in described rectifying column 11 is high, creates described condensation
The temperature difference of evaporimeter 9 both sides, makes both sides heat can exchange；High 1 DEG C than evaporation side temperature of condenser/evaporator 9 condensation side temperature with
When upper, heat exchange can be carried out.
Wherein, with the carrying out of rectifying,20Ne gas is constantly enriched with the tower top of described rectifying column 11, until purity reaches
After 99.5%, extract out from tower top, reclaim after cold through described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3 successively, as20Ne gas products export from described separation equipment 2.
Preferably, separate from neon above-mentioned20In the device of Ne, described cooler be arranged in described compressor 1 or
Person is arranged independent of described compressor 1.
Preferably, separate from neon above-mentioned20In the device of Ne, the low-temperature receiver of described liquid nitrogen cooler 4 is described separation
The liquid nitrogen separately providing outside equipment 2 or the liquid nitrogen sharing with described cold screen 5 inside.
Preferably, separate from neon above-mentioned20In the device of Ne, described high-purity N e unstripped gas feeding line is followed with described
The caliber ratio of ring neon pipeline is according to the flow-rate ratio 3 of high-purity N e unstripped gas and circulation neon:27 settings.
Preferably, separate from neon above-mentioned20In the device of Ne, it is provided with a road pipeline of regulating valve 7 and is provided with
The caliber ratio of another road pipeline of regulating valve 8 is according to by the low temperature neon of regulating valve 7 and by the low temperature neon of regulating valve 8
Flow-rate ratio 3:27 settings.
Compared with prior art, the utility model has advantages below：
1. the minimum operating temperature guaranteeing in described separation equipment 2 by vacuumizing and leading to liquid nitrogen is 24.5K, and guarantees institute
State working temperature in the space that cold screen 5 surrounds and be less than 77K, be effectively prevented radiant heat transfer loss it is achieved that main technique mistake
Journey is adiabatic；2. this device is successfully realized the described kind of refrigeration cycle neon of reasonable recycling and the cold of described bottom of towe neon liquid is used for
Cooling high-purity N e unstripped gas；Even, should20Ne gas also successively through described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3 with
Reclaim cold, this decreases the cost cooling to a great extent；3. using regulating valve, described low temperature neon is saved
Stream decompression, thus produce the low temperature cold of 27.7K, efficient implementation cryogenic rectification；4. adopt method provided by the utility model
Isolate and purify20Ne gas products, not only purity（Abundance）Up to standard, and yield is very high.
Brief description
Fig. 1 is the structure diagram of device described in the utility model；
Wherein：1- compressor, 2- separation equipment, 3- high-temperature section heat exchanger, 4- liquid nitrogen cooler, the cold screen of 5-, 6- low-temperature zone
Heat exchanger, 7- regulating valve, 8- regulating valve, 9- condenser/evaporator, 10- condenser/evaporator shell, 11- rectifying column, 12- rectifying column bottom
Electric heater.
Specific embodiment
With reference to specific embodiment, the utility model is further elaborated, but the utility model be not limited to following
Embodiment.
A kind of separation from neon20The device of Ne, described device includes：
Compressor 1, cooler, separation equipment 2, and some valves and pipeline；
Wherein, include in described separation equipment 2：High-temperature section heat exchanger 3, liquid nitrogen cooler 4, cold screen 5, low-temperature zone heat exchanger
6th, condenser/evaporator 9, rectifying column 11 and regulating valve 7 and regulating valve 8；Wherein, described condenser/evaporator 9 has condenser/evaporator
Shell 10, the bottom of described rectifying column 11 is provided with rectifying column bottom electric heater 12；
Wherein, high-purity N e unstripped gas feeding line is merged before described compressor 1 with circulation neon pipeline, and, described
Compressor 1 is connected with cooler, and described cooler accesses described separation equipment 2 by pipeline；High-purity N e unstripped gas and circulation neon
Gas first compresses through described compressor 1 after merging, then obtains compressing the neon of cooling through the cooling of described cooler；
Wherein, high-temperature section heat exchanger 3, liquid nitrogen cooler 4 and low-temperature zone heat exchanger 6 are arranged in series, for cooling down further
The neon of described compression cooling, and export low temperature neon；The line branches of output low temperature neon are two-way, wherein arrange on the way
There is regulating valve 7, for carrying out rectifying by sending into rectifying column 11 after low temperature neon expenditure and pressure；Wherein separately it is provided with regulation on the way
Valve 8, for by after low temperature neon expenditure and pressure, generating liquid Ne and being conveyed into the condensation evaporation being arranged on rectifying column 11 top
Device 9；
Wherein, described liquid nitrogen cooler 4, described low-temperature zone heat exchanger 6, described rectifying column 11 and described condenser/evaporator 9
All it is housed inside in the space that cold screen 5 surrounds, and described space keeps 1 × 10-4Pa to 1 × 10-3The vacuum of Pa；Wherein, institute
State the internal logical liquid nitrogen of cold screen 5, for maintaining the worst cold case in described space；
The condensation side of described condenser/evaporator 9 is provided with condensate reflux line, for condensation Ne liquid is back to described essence
Evaporate in tower 11；The evaporation side of described condenser/evaporator 9 is respectively arranged with a kind of refrigeration cycle with the top of described condenser/evaporator 9
Neon by-pass line, forms kind of refrigeration cycle neon Trunk Line after merging, extends and passes sequentially through described low-temperature zone heat exchanger 6 and described height
After temperature section heat exchanger 3, connect to described circulation neon pipeline；The bottom of described rectifying column 11 is provided with a bottom of towe neon liquid output
Pipeline, extends and passes sequentially through described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3, finally stretch out described separation equipment 2 simultaneously
Extend to the outside of described device；The tower top of described rectifying column 11 is provided with one20Ne gas products export pipeline, extends successively
By described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3, finally export to user or storage.
In a preferred embodiment, described cooler is arranged in described compressor 1 or independent of described compressor 1
Setting.
In a preferred embodiment, separately provide outside the described separation equipment of low-temperature receiver 2 of described liquid nitrogen cooler 4
Liquid nitrogen or the liquid nitrogen sharing with described cold screen 5 inside.
In a preferred embodiment, described high-purity N e unstripped gas feeding line and the described caliber ratio circulating neon pipeline
Example is according to the flow-rate ratio 3 of high-purity N e unstripped gas and circulation neon:27 settings.
In a preferred embodiment, the road pipeline being provided with regulating valve 7 and another road pipeline being provided with regulating valve 8
Caliber ratio according to by the low temperature neon of regulating valve 7 with by the flow-rate ratio 3 of the low temperature neon of regulating valve 8:27 settings.
Embodiment 1
Isolated from neon using device as shown in Figure 120Ne gas products：
3 Nm/h high-purity N e unstripped gas is merged with 27 Nm/h circulation neon, is conveyed into compressor 1 and is compressed to 7 MPa
（g）, then configured cooler in compressor 1 cooled down, obtain compress cooling neon；Then, by described compression
The neon of cooling is conveyed into separation equipment 2；The neon of described compression cooling is introduced into high-temperature section heat exchanger 3 and is cooled to -140
DEG C, subsequently enter liquid nitrogen cooler 4 and be cooled to -192 DEG C, finally enter low-temperature zone heat exchanger 6 and be cooled further to -220 DEG C, defeated
Go out low temperature neon；Wherein, the low-temperature receiver of described liquid nitrogen cooler 4 is the liquid nitrogen separately providing outside described separation equipment 2；
Then, described low temperature neon is split into two strands, wherein one is throttled by regulating valve 7 with the flow of 3 Nm/h
It is decompressed to 0.1～0.2MPa（g）Afterwards, enter rectifying column 11 and carry out rectifying；Wherein another stock passes through to adjust with the flow of 27 Nm/h
Section valve 8 expenditure and pressure is to 0.02MPa（g）Afterwards, generate liquid Ne, be conveyed into the condenser/evaporator being arranged on rectifying column 11 top
9 and as low-temperature receiver；
Wherein, described liquid nitrogen cooler 4, described low-temperature zone heat exchanger 6, described rectifying column 11 and described condenser/evaporator 9
All it is housed inside in the space that cold screen 5 surrounds, and described space keeps 1 × 10-4The vacuum of Pa；Wherein, inside described cold screen 5
Logical liquid nitrogen, for maintaining the worst cold case in described space；
Described condenser/evaporator 9 has condenser/evaporator shell 10, and the bottom of described rectifying column 11 is provided with rectifying column bottom
Electric heater 12, power is 100W；By this rectifying column bottom electric heater 12, the heating of bottom of towe liquid is obtained rising gas；Described cold
The condensation side of solidifying evaporimeter 9 produces condensation Ne liquid, is back in described rectifying column 11, becomes the dropping liq in tower；Described cold
The evaporation side of solidifying evaporimeter 9 generates one kind of refrigeration cycle neon, after merging, successively respectively with the top of described condenser/evaporator 9
Reclaim cold through described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3, generate described circulation neon；Described rectifying column 11
Bottom generate one bottom of towe neon liquid, wherein mainly contain22Ne, its flow is 1.663 Nm/h, successively through described low-temperature zone heat exchange
Device 6 and described high-temperature section heat exchanger 3 reclaim cold, discharge from described separation equipment 2 afterwards；
With the carrying out of rectifying,20Ne gas is constantly enriched with the tower top of described rectifying column 11, until purity reaches 99.5%
Afterwards, extract out from tower top, reclaim after cold through described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3 successively, as20Ne gas
Body product exports from described separation equipment 2, and its flow is 1.307 Nm/h.
Embodiment 2
Isolated from neon using device as shown in Figure 120Ne gas products：
3 Nm/h high-purity N e unstripped gas is merged with 27 Nm/h circulation neon, is conveyed into compressor 1 and is compressed to 8 MPa
（g）, then configured cooler in compressor 1 cooled down, obtain compress cooling neon；Then, by described compression
The neon of cooling is conveyed into separation equipment 2；The neon of described compression cooling is introduced into high-temperature section heat exchanger 3 and is cooled to -145
DEG C, subsequently enter liquid nitrogen cooler 4 and be cooled to -193 DEG C, finally enter low-temperature zone heat exchanger 6 and be cooled further to -221 DEG C, defeated
Go out low temperature neon；Wherein, the low-temperature receiver of described liquid nitrogen cooler 4 is the liquid nitrogen separately providing outside described separation equipment 2；
Then, described low temperature neon is split into two strands, wherein one is throttled by regulating valve 7 with the flow of 3 Nm/h
It is decompressed to 0.1～0.2MPa（g）Afterwards, enter rectifying column 11 and carry out rectifying；Wherein another stock passes through to adjust with the flow of 27 Nm/h
Section valve 8 expenditure and pressure is to 0.02MPa（g）Afterwards, generate liquid Ne, be conveyed into the condenser/evaporator being arranged on rectifying column 11 top
9 and as low-temperature receiver；
Wherein, described liquid nitrogen cooler 4, described low-temperature zone heat exchanger 6, described rectifying column 11 and described condenser/evaporator 9
All it is housed inside in the space that cold screen 5 surrounds, and described space keeps 1 × 10-4The vacuum of Pa；Wherein, inside described cold screen 5
Logical liquid nitrogen, for maintaining the worst cold case in described space；
Described condenser/evaporator 9 has condenser/evaporator shell 10, and the bottom of described rectifying column 11 is provided with rectifying column bottom
Electric heater 12, power is 100W；By this rectifying column bottom electric heater 12, the heating of bottom of towe liquid is obtained rising gas；Described cold
The condensation side of solidifying evaporimeter 9 produces condensation Ne liquid, is back in described rectifying column 11, becomes the dropping liq in tower；Described cold
The evaporation side of solidifying evaporimeter 9 generates one kind of refrigeration cycle neon, after merging, successively respectively with the top of described condenser/evaporator 9
Reclaim cold through described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3, generate described circulation neon；Described rectifying column 11
Bottom generate one bottom of towe neon liquid, wherein mainly contain22Ne, its flow is 1.658 Nm/h, successively through described low-temperature zone heat exchange
Device 6 and described high-temperature section heat exchanger 3 reclaim cold, discharge from described separation equipment 2 afterwards；
With the carrying out of rectifying,20Ne gas is constantly enriched with the tower top of described rectifying column 11, until purity reaches 99.5%
Afterwards, extract out from tower top, reclaim after cold through described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3 successively, as20Ne gas
Body product exports from described separation equipment 2, and its flow is 1.315 Nm/h.
Embodiment 3
Isolated from neon using device as shown in Figure 120Ne gas products：
3 Nm/h high-purity N e unstripped gas is merged with 27 Nm/h circulation neon, is conveyed into compressor 1 and is compressed to 9 MPa
（g）, then cooled down through the cooler independent of the setting of described compressor 1, obtain compressing the neon of cooling；Then, by institute
The neon stating compression cooling is conveyed into separation equipment 2；The neon of described compression cooling is introduced into high-temperature section heat exchanger 3 lower the temperature
To -148 DEG C, subsequently enter liquid nitrogen cooler 4 and be cooled to -193 DEG C, finally enter low-temperature zone heat exchanger 6 be cooled further to -
224 DEG C, export low temperature neon；Wherein, the low-temperature receiver of described liquid nitrogen cooler 4 is the liquid nitrogen sharing with described cold screen 5 inside；
Then, described low temperature neon is split into two strands, wherein one is throttled by regulating valve 7 with the flow of 3 Nm/h
It is decompressed to 0.1～0.2MPa（g）Afterwards, enter rectifying column 11 and carry out rectifying；Wherein another stock passes through to adjust with the flow of 27 Nm/h
Section valve 8 expenditure and pressure is to 0.02MPa（g）Afterwards, generate liquid Ne, be conveyed into the condenser/evaporator being arranged on rectifying column 11 top
9 and as low-temperature receiver；
Wherein, described liquid nitrogen cooler 4, described low-temperature zone heat exchanger 6, described rectifying column 11 and described condenser/evaporator 9
All it is housed inside in the space that cold screen 5 surrounds, and described space keeps 1 × 10-4The vacuum of Pa；Wherein, inside described cold screen 5
Logical liquid nitrogen, for maintaining the worst cold case in described space；
Described condenser/evaporator 9 has condenser/evaporator shell 10, and the bottom of described rectifying column 11 is provided with rectifying column bottom
Electric heater 12, power is 100W；By this rectifying column bottom electric heater 12, the heating of bottom of towe liquid is obtained rising gas；Described cold
The condensation side of solidifying evaporimeter 9 produces condensation Ne liquid, is back in described rectifying column 11, becomes the dropping liq in tower；Described cold
The evaporation side of solidifying evaporimeter 9 generates one kind of refrigeration cycle neon, after merging, successively respectively with the top of described condenser/evaporator 9
Reclaim cold through described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3, generate described circulation neon；Described rectifying column 11
Bottom generate one bottom of towe neon liquid, wherein mainly contain22Ne, its flow is 1.651 Nm/h, successively through described low-temperature zone heat exchange
Device 6 and described high-temperature section heat exchanger 3 reclaim cold, discharge from described separation equipment 2 afterwards；
With the carrying out of rectifying,20Ne gas is constantly enriched with the tower top of described rectifying column 11, until purity reaches 99.5%
Afterwards, extract out from tower top, reclaim after cold through described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3 successively, as20Ne gas
Body product exports from described separation equipment 2, and its flow is 1.310 Nm/h.
Embodiment 4
Isolated from neon using device as shown in Figure 120Ne gas products：
3 Nm/h high-purity N e unstripped gas is merged with 27 Nm/h circulation neon, is conveyed into compressor 1 and is compressed to 9 MPa
（g）, then cooled down through the cooler independent of the setting of described compressor 1, obtain compressing the neon of cooling；Then, by institute
The neon stating compression cooling is conveyed into separation equipment 2；The neon of described compression cooling is introduced into high-temperature section heat exchanger 3 lower the temperature
To -150 DEG C, subsequently enter liquid nitrogen cooler 4 and be cooled to -195 DEG C, finally enter low-temperature zone heat exchanger 6 be cooled further to -
222 DEG C, export low temperature neon；Wherein, the low-temperature receiver of described liquid nitrogen cooler 4 is the liquid nitrogen sharing with described cold screen 5 inside；
Then, described low temperature neon is split into two strands, wherein one is throttled by regulating valve 7 with the flow of 3 Nm/h
It is decompressed to 0.1～0.2MPa（g）Afterwards, enter rectifying column 11 and carry out rectifying；Wherein another stock passes through to adjust with the flow of 27 Nm/h
Section valve 8 expenditure and pressure is to 0.02MPa（g）Afterwards, generate liquid Ne, be conveyed into the condenser/evaporator being arranged on rectifying column 11 top
9 and as low-temperature receiver；
Wherein, described liquid nitrogen cooler 4, described low-temperature zone heat exchanger 6, described rectifying column 11 and described condenser/evaporator 9
All it is housed inside in the space that cold screen 5 surrounds, and described space keeps 1 × 10-4The vacuum of Pa；Wherein, inside described cold screen 5
Logical liquid nitrogen, for maintaining the worst cold case in described space；
Described condenser/evaporator 9 has condenser/evaporator shell 10, and the bottom of described rectifying column 11 is provided with rectifying column bottom
Electric heater 12, power is 100W；By this rectifying column bottom electric heater 12, the heating of bottom of towe liquid is obtained rising gas；Described cold
The condensation side of solidifying evaporimeter 9 produces condensation Ne liquid, is back in described rectifying column 11, becomes the dropping liq in tower；Described cold
The evaporation side of solidifying evaporimeter 9 generates one kind of refrigeration cycle neon, after merging, successively respectively with the top of described condenser/evaporator 9
Reclaim cold through described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3, generate described circulation neon；Described rectifying column 11
Bottom generate one bottom of towe neon liquid, wherein mainly contain22Ne, its flow is 1.673 Nm/h, successively through described low-temperature zone heat exchange
Device 6 and described high-temperature section heat exchanger 3 reclaim cold, discharge from described separation equipment 2 afterwards；
With the carrying out of rectifying,20Ne gas is constantly enriched with the tower top of described rectifying column 11, until purity reaches 99.5%
Afterwards, extract out from tower top, reclaim after cold through described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3 successively, as20Ne gas
Body product exports from described separation equipment 2, and its flow is 1.302 Nm/h.
Embodiment 5
Isolated from neon using device as shown in Figure 120Ne gas products：
3 Nm/h high-purity N e unstripped gas is merged with 27 Nm/h circulation neon, is conveyed into compressor 1 and is compressed to 8 MPa
（g）, then configured cooler in compressor 1 cooled down, obtain compress cooling neon；Then, by described compression
The neon of cooling is conveyed into separation equipment 2；The neon of described compression cooling is introduced into high-temperature section heat exchanger 3 and is cooled to -148
DEG C, subsequently enter liquid nitrogen cooler 4 and be cooled to -195 DEG C, finally enter low-temperature zone heat exchanger 6 and be cooled further to -222 DEG C, defeated
Go out low temperature neon；Wherein, the low-temperature receiver of described liquid nitrogen cooler 4 is the liquid nitrogen separately providing outside described separation equipment 2；
Then, described low temperature neon is split into two strands, wherein one is throttled by regulating valve 7 with the flow of 3 Nm/h
It is decompressed to 0.1～0.2MPa（g）Afterwards, enter rectifying column 11 and carry out rectifying；Wherein another stock passes through to adjust with the flow of 27 Nm/h
Section valve 8 expenditure and pressure is to 0.02MPa（g）Afterwards, generate liquid Ne, be conveyed into the condenser/evaporator being arranged on rectifying column 11 top
9 and as low-temperature receiver；
Wherein, described liquid nitrogen cooler 4, described low-temperature zone heat exchanger 6, described rectifying column 11 and described condenser/evaporator 9
All it is housed inside in the space that cold screen 5 surrounds, and described space keeps 1 × 10-3The vacuum of Pa；Wherein, inside described cold screen 5
Logical liquid nitrogen, for maintaining the worst cold case in described space；
Described condenser/evaporator 9 has condenser/evaporator shell 10, and the bottom of described rectifying column 11 is provided with rectifying column bottom
Electric heater 12, power is 100W；By this rectifying column bottom electric heater 12, the heating of bottom of towe liquid is obtained rising gas；Described cold
The condensation side of solidifying evaporimeter 9 produces condensation Ne liquid, is back in described rectifying column 11, becomes the dropping liq in tower；Described cold
The evaporation side of solidifying evaporimeter 9 generates one kind of refrigeration cycle neon, after merging, successively respectively with the top of described condenser/evaporator 9
Reclaim cold through described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3, generate described circulation neon；Described rectifying column 11
Bottom generate one bottom of towe neon liquid, wherein mainly contain22Ne, its flow is 1.662 Nm/h, successively through described low-temperature zone heat exchange
Device 6 and described high-temperature section heat exchanger 3 reclaim cold, discharge from described separation equipment 2 afterwards；
With the carrying out of rectifying,20Ne gas is constantly enriched with the tower top of described rectifying column 11, until purity reaches 99.5%
Afterwards, extract out from tower top, reclaim after cold through described low-temperature zone heat exchanger 6 and described high-temperature section heat exchanger 3 successively, as20Ne gas
Body product exports from described separation equipment 2, and its flow is 1.313 Nm/h.
Above specific embodiment of the utility model is described in detail, but it has been intended only as example, this practicality is new
Type is not restricted to particular embodiments described above.To those skilled in the art, any the utility model is carried out
Equivalent modifications and substitute also all among category of the present utility model.Therefore, without departing from spirit of the present utility model and model
Enclose lower made impartial conversion and change, all should cover in the range of the utility model.
Claims (5)
1. one kind separates from neon20The device of Ne is it is characterised in that described device includes：
Compressor（1）, cooler, separation equipment（2）, and some valves and pipeline；
Wherein, described separation equipment（2）Interior inclusion：High-temperature section heat exchanger（3）, liquid nitrogen cooler（4）, cold screen（5）, low-temperature zone changes
Hot device（6）, condenser/evaporator（9）, rectifying column（11）And regulating valve（7）With regulating valve（8）；Wherein, described condenser/evaporator
（9）There is condenser/evaporator shell（10）, described rectifying column（11）Bottom be provided with rectifying column bottom electric heater（12）；
Wherein, high-purity N e unstripped gas feeding line and circulation neon pipeline are in described compressor（1）Front merging, and, described pressure
Contracting machine（1）Connect with cooler, described cooler accesses described separation equipment by pipeline（2）；High-purity N e unstripped gas and circulation
First through described compressor after neon merging（1）Compression, then obtain compressing the neon of cooling through the cooling of described cooler；
Wherein, high-temperature section heat exchanger（3）, liquid nitrogen cooler（4）With low-temperature zone heat exchanger（6）It is arranged in series, for cold further
The neon of described compression cooling, and export low temperature neon；The line branches of output low temperature neon are two-way, wherein set on the way
It is equipped with regulating valve（7）, for rectifying column will be sent into after low temperature neon expenditure and pressure（11）Carry out rectifying；Wherein separately arrange on the way
There is regulating valve（8）, for by after low temperature neon expenditure and pressure, generating liquid Ne and being conveyed into and be arranged on rectifying column（11）Top
Condenser/evaporator（9）；
Wherein, described liquid nitrogen cooler（4）, described low-temperature zone heat exchanger（6）, described rectifying column（11）With described condenser/evaporator
（9）All it is housed inside cold screen（5）In the space surrounding, and described space keeps 1 × 10-4Pa to 1 × 10-3The vacuum of Pa；Its
In, described cold screen（5）Internal logical liquid nitrogen, for maintaining the worst cold case in described space；
Described condenser/evaporator（9）Condensation side be provided with condensate reflux line, for by condensation Ne liquid be back to described rectifying
Tower（11）Interior；Described condenser/evaporator（9）Evaporation side and described condenser/evaporator（9）Top be respectively arranged with a refrigeration
Circulation neon by-pass line, forms kind of refrigeration cycle neon Trunk Line after merging, extends and passes sequentially through described low-temperature zone heat exchanger（6）With
Described high-temperature section heat exchanger（3）Afterwards, connect to described circulation neon pipeline；Described rectifying column（11）Bottom be provided with Yi Tiaota
Bottom neon liquid export pipeline, extends and passes sequentially through described low-temperature zone heat exchanger（6）With described high-temperature section heat exchanger（3）, finally stretch out
Described separation equipment（2）And extend to the outside of described device；Described rectifying column（11）Tower top be provided with one20Ne gas produces
Product export pipeline, extends and passes sequentially through described low-temperature zone heat exchanger（6）With described high-temperature section heat exchanger（3）, finally export to use
Family or storage.
2. separation from neon according to claim 120The device of Ne is it is characterised in that described cooler is arranged on institute
State compressor（1）Interior or independent of described compressor（1）Setting.
3. separation from neon according to claim 120The device of Ne is it is characterised in that described liquid nitrogen cooler（4）'s
Low-temperature receiver is described separation equipment（2）Liquid nitrogen that outside separately provides or with described cold screen（5）The internal liquid nitrogen sharing.
4. separation from neon according to claim 120The device of Ne is it is characterised in that described high-purity N e unstripped gas enters
The caliber ratio of expects pipe line and described circulation neon pipeline is according to the flow-rate ratio 3 of high-purity N e unstripped gas and circulation neon:27 settings.
5. separation from neon according to claim 120The device of Ne is it is characterised in that be provided with regulating valve（7）One
Road pipeline be provided with regulating valve（8）Another road pipeline caliber ratio according to by regulating valve（7）Low temperature neon with logical
Overregulate valve（8）Low temperature neon flow-rate ratio 3:27 settings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620832766.0U CN205939930U (en) | 2016-08-03 | 2016-08-03 | Separation 20Ne's device in follow neon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620832766.0U CN205939930U (en) | 2016-08-03 | 2016-08-03 | Separation 20Ne's device in follow neon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205939930U true CN205939930U (en) | 2017-02-08 |
Family
ID=57925468
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|---|---|---|---|
| CN201620832766.0U Expired - Fee Related CN205939930U (en) | 2016-08-03 | 2016-08-03 | Separation 20Ne's device in follow neon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205939930U (en) |
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2016
- 2016-08-03 CN CN201620832766.0U patent/CN205939930U/en not_active Expired - Fee Related
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