CN110398132A - A kind of helium liquefaction and different temperatures grade helium cold source feedway - Google Patents
A kind of helium liquefaction and different temperatures grade helium cold source feedway Download PDFInfo
- Publication number
- CN110398132A CN110398132A CN201910632824.3A CN201910632824A CN110398132A CN 110398132 A CN110398132 A CN 110398132A CN 201910632824 A CN201910632824 A CN 201910632824A CN 110398132 A CN110398132 A CN 110398132A
- Authority
- CN
- China
- Prior art keywords
- helium
- valve
- outlet
- shut
- import
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000001307 helium Substances 0.000 title claims abstract description 222
- 229910052734 helium Inorganic materials 0.000 title claims abstract description 222
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title abstract description 196
- 230000008676 import Effects 0.000 claims abstract description 85
- 239000007789 gas Substances 0.000 claims abstract description 17
- 239000013589 supplement Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 55
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 17
- 239000012535 impurity Substances 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 239000006096 absorbing agent Substances 0.000 claims description 4
- KIAPWMKFHIKQOZ-UHFFFAOYSA-N 2-[[(4-fluorophenyl)-oxomethyl]amino]benzoic acid methyl ester Chemical compound COC(=O)C1=CC=CC=C1NC(=O)C1=CC=C(F)C=C1 KIAPWMKFHIKQOZ-UHFFFAOYSA-N 0.000 claims description 3
- 102100029075 Exonuclease 1 Human genes 0.000 claims description 3
- 101000918264 Homo sapiens Exonuclease 1 Proteins 0.000 claims description 3
- MCWJHOCHKYKWMK-UHFFFAOYSA-N helium Chemical compound [He].[He] MCWJHOCHKYKWMK-UHFFFAOYSA-N 0.000 claims 27
- 238000005057 refrigeration Methods 0.000 description 19
- 238000001816 cooling Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 3
- 235000019628 coolness Nutrition 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 101100008046 Caenorhabditis elegans cut-2 gene Proteins 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0201—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using only internal refrigeration means, i.e. without external refrigeration
- F25J1/0202—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using only internal refrigeration means, i.e. without external refrigeration in a quasi-closed internal refrigeration loop
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
- F25J1/0294—Multiple compressor casings/strings in parallel, e.g. split arrangement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2215/00—Processes characterised by the type or other details of the product stream
- F25J2215/30—Helium
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
A kind of helium liquefaction and different temperatures grade helium cold source feedway, it includes integrated heat exchanger, helium compressor, high/low temperature helium expanding machine, J-T throttle valve, vacuum dewar tank, knockout drum, flow path shut-off valve, it is characterized in that the helium compressor import is separately connected He buffer tank import, shut-off valve import, rewarming helium ends valve outlet, helium supplement cut-off valve outlet, helium supplements shut-off valve import and connects helium gas source, the helium compressor outlet is separately connected the outlet of He buffer tank outlet shutoff valve by compressed helium check-valves, water cooler import, it has structurally reasonable, using easy to control, structure is simple, to reduce use cost, the features such as improving working efficiency.
Description
Technical field
The present invention relates to a kind of helium liquefaction and different temperatures grade helium cold source feedways, belong to helium liquefaction manufacture
Field.
Background technique
With China tip section grinding device it is continuous construction and development, drive and accelerate cryogenic technique development and at
It is ripe.Helium liquefaction device can provide pole low temperature environment to advanced research equipment, while can also mention for the simulation of high-vacuum environment
For institute's chilling requirement.In recent years, liquid helium was used in low temperature field as the refrigeration system of working medium and was gradually popularized.But China is current only
There is only a few scientific research institution to there is small-sized helium liquefaction equipment to use, output cooling capacity is small (generally tens watts Dao hundreds of watts), refrigeration effect
Rate is low, and can not achieve the helium refrigerant output of multi-temperature sequence.Apparatus of the present invention pass through helium Liquid nitrogen precooler, helium expanding machine
The helium cold source output of helium liquefaction and different temperatures sequence is realized in compound expansion refrigeration and J-T throttling, can meet different deep coolings
Demand of the equipment to helium cold source.
Summary of the invention
A kind of helium liquefaction of the present invention and different temperatures grade helium cold source supply technology and device, it is pre- by compressed helium liquid nitrogen
Cold, high/low temperature expanding machine twin-stage swell refrigeration and J-T throttling refrigeration obtain liquid helium and supercritical helium and different temperatures grade
Helium cold source.The present invention obtains normal pressure liquid helium and supercritical helium and different temperatures sequence using an integrated heat exchange equipment
Helium cold source, to meet the needs of different deep freeze refrigeration plants are to helium cold source, the purpose of the present invention is obtained by following technical proposals
With solution: a kind of helium liquefaction and different temperatures grade helium cold source feedway, it includes integrated heat exchanger, helium compression
Machine, high/low temperature helium expanding machine, J-T throttle valve, vacuum dewar tank, knockout drum, flow path shut-off valve, it is characterised in that institute
It states helium compressor import and is separately connected the import of He buffer tank, shut-off valve import, rewarming helium cut-off valve outlet, helium supplement
End valve outlet.Helium supplements shut-off valve import and connects helium gas source, and the helium compressor outlet passes through compressed helium check-valves
It is separately connected the outlet of He buffer tank outlet shutoff valve, water cooler import, water cooler outlet passes through compressed helium shut-off valve
Connect integrated heat exchanger hot side inlet HXI1, integrated heat exchanger hot end outlet HXO1 be separately connected high temperature impurity absorption device into
The import of mouth shut-off valve, bypass cutoff valve import.End the outlet connection shut-off valve import of valve outlet connection high temperature impurity absorption device, cuts
Only valve outlet is separately connected bypass cutoff valve outlet, integrated heat exchanger hot side inlet HXI2, shut-off valve import.Integrated heat exchanger heat
It brings out a mouthful HXO2 and is separately connected integrated heat exchanger hot side inlet HXI3, the import of high temperature expander inlet shutoff valve, shut-off valve import.
End valve outlet and connects high temperature expander import, high temperature expander outlet connection integrated heat exchanger hot side inlet EXI1.It is integrated to change
Hot device hot end exports EXO1 connection cryogenic expansion machine inlet shutoff valve import, and cut-off valve outlet connects cryogenic expansion machine import.It is low
Warm expander outlet is separately connected cut-off valve outlet, integrated heat exchanger cold side inlet CXI5.
As preferred: the hot end outlet HXO3 of the integrated heat exchanger is separately connected the hot side inlet of integrated heat exchanger
HXI4, shut-off valve import, the integrated heat exchanger hot end export HXO4 connection low temperature impurity absorber import, low temperature impurity absorption
Device outlet is separately connected integrated heat exchanger hot side inlet HXI5, shut-off valve import.It is low that integrated heat exchanger hot end exports HXO5 connection
Warm throttle valve import, cryogenic throttle valve outlet connection integrated heat exchanger hot side inlet HXI6.
As preferred: the hot end outlet HXO6 of the integrated heat exchanger is separately connected throttle valve import, supercritical helium throttling
Valve import, shut-off valve import.The valve outlet that throttles connects vacuum dewar import, and supercritical helium throttling valve outlet connects gas-liquid separator
Import, cold helium cut-off valve outlet connect the heat exchanger tube import of gas-liquid separator bottom.The outlet of vacuum dewar top gas connects respectively
Connect the outlet of gas-liquid separator top gas, integrated heat exchanger cold side inlet CXI6.The outlet of gas-liquid separator supercritical helium passes through super
Critical helium shut-off valve 25 connects various cryogenic environment demand supercritical helium imports.Cut-off valve outlet, cut-off valve outlet, shut-off valve go out
Mouthful, cut-off valve outlet connect various cryogenic environment demand imports jointly, the outlets of the various cryogenic environment demands, shut-off valve into
Mouth connection helium goes gas-liquid separator shut-off valve import, and cut-off valve outlet connects gas-liquid separator gas feed, vacuum dewar bottom
Portion's liquid outlet connects various cryogenic environment demand liquid helium imports by liquid helium shut-off valve.Gas-liquid separator bottom heat exchanger tube goes out
Mouth, gas-liquid separator bottom liquid outlet are connect with various cryogenic environment demand imports.Cut-off valve outlet is separately connected various depths
Cold environmental demand gas vent, shut-off valve) import, shut-off valve import, shut-off valve import, shut-off valve import.
As preferred: it is cold that the cold side outlet CXO5 of the integrated heat exchanger is separately connected cut-off valve outlet, integrated heat exchanger
Hold import CXI4.Integrated heat exchanger cold side outlet CXO4 is separately connected cut-off valve outlet, integrated heat exchanger cold side inlet CXI3.Collection
Cut-off valve outlet, integrated heat exchanger cold side inlet CXI2 are separately connected at heat exchanger cold side outlet CXO3.Integrated heat exchanger cold end
Export the helium shut-off valve import of CXO2 connection rewarming.Integrated heat exchanger cold side inlet CXI1 connection liquid nitrogen storage tank, outlet connection nitrogen
Gas pipe network.
The present invention is improvements over the prior art, it have it is structurally reasonable, use is easy to control, and structure is simple, to drop
The features such as low use cost, raising working efficiency.
The present invention uses high/low temperature helium expanding machine twin-stage swell refrigeration.Helium conduct after high temperature expander one-stage expansion
Heat source continues to be cooled, the main source then into cryogenic expansion machine swell refrigeration, as apparatus of the present invention system cooling capacity.
The present invention can produce liquid helium and supercritical helium and different temperatures sequence helium cold source, can meet various deep cooling rings
Heat transfer process is concentrated in an integrated heat exchanger, reduces heat exchanger quantity, mention by demand of the border to helium cold source, the present invention
High level of integrated system.Apparatus structure is compact, effectively reduces occupied area.
A kind of helium liquefaction of the present invention and different temperatures grade helium cold source supply technology and device, it is pre- by compressed helium liquid nitrogen
Cold, high/low temperature expanding machine twin-stage swell refrigeration and J-T throttling refrigeration obtain liquid helium and supercritical helium and different temperatures grade
Helium cold source.The present invention obtains normal pressure liquid helium and supercritical helium and different temperatures sequence using an integrated heat exchange equipment
Helium cold source, to meet the needs of different deep freeze refrigeration plants are to helium cold source.Heat transfer process is concentrated on one and integrated changed by the present invention
In hot device, reduces heat exchanger quantity, improve level of integrated system.Apparatus structure is compact, effectively reduces occupied area.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
The present invention will be described in detail below with reference to the accompanying drawings: shown in Fig. 1, a kind of helium liquid of the present invention of the present invention
Change and different temperatures grade helium cold source supplies technology and device, passes through 1 compressed helium 40 of helium compressor and realize helium liquefaction circulation.
System raw material helium supplement is supplemented shut-off valve 78 by raw material helium and is controlled, and 78 raw material helium 39 of shut-off valve and rewarming helium are opened
Helium compressor import helium 40 is used as after 38 confluences, before system starting, all valves are turned off,
Rewarming helium shut-off valve 7 is opened, rewarming helium 38 enters helium compressor 1.The outlet of helium compressor 1 setting check-valves 4,
To prevent high-pressure helium 41 from flowing back.The water inlet cooler 6 of high-pressure helium 41 is cooled to room temperature.Open compressed helium shut-off valve 8, water cooling
But device 6 exports normal temperature high voltage helium 42 into 9 hot side inlet HXI1 of integrated heat exchanger.
Further, it particularly points out, He buffer tank 3 is supplemented as system raw material helium: 1. opening the outlet of He buffer tank
Shut-off valve (5), He buffer tank can store high-pressure helium, enter 9 hot side inlet of integrated heat exchanger directly as raw material helium
HXI1；2. He buffer tank inlet shutoff valve 2 is opened, as helium compressor raw material when can store low pressure helium necessity
Gas source)；3. system stops, He buffer tank inlet shutoff valve 2 is opened, can be used as circulation helium storage container.
Outlet HXO1 helium 43 in 9 hot end of integrated heat exchanger can be divided into two-way: 1. open high temperature impurity absorption device import cut-off
Valve 10, high temperature impurity absorption device outlet shutoff valve 13, helium 45 enters 9 heat of integrated heat exchanger to high temperature impurity absorption device 11 after purification
Hold import HXI2；2. opening bypass cutoff valve 12, helium 43 is directly entered 9 hot side inlet HXI2 of integrated heat exchanger and shut-off valve
34 imports.
Outlet HXO2 helium 46 in 9 hot end of integrated heat exchanger divides for two-way: 1. helium 47 respectively enters integrated heat exchanger all the way
35 import of 9 hot side inlet HXI3 and shut-off valve；2. opening high temperature expander inlet shutoff valve 15, another way helium 48 enters high
Warm 14 import of expanding machine.Helium 49 enters 9 hot side inlet EXI1 of integrated heat exchanger after high temperature expander expands.
Outlet HXO3 helium 50 in 9 hot end of integrated heat exchanger respectively enters 9 hot side inlet HXI4 of integrated heat exchanger and shut-off valve
36 imports.Cryogenic expansion machine inlet shutoff valve 18 is opened, 9 hot end of integrated heat exchanger exports EXO1 helium 51 and enters low-temperature expansion
19 import of machine, 19 expanding helium gas 76 of cryogenic expansion machine and I helium 65 of cold junction temperature sequence, integrated heat exchanger cold side outlet CXO6 helium
The confluence of gas 64 is integrated heat exchanger cold side inlet CXI5 helium 69, into integrated heat exchanger cold side inlet CXI5.
9 hot end of integrated heat exchanger exports HXO4 helium 52 and enters low temperature impurity absorber 16, and helium 79 enters collection after purification
At 9 hot side inlet HXI5 of heat exchanger and 37 import of shut-off valve.9 hot end of integrated heat exchanger exports HXO5 helium 53 through cryogenic throttle valve
17 throttlings, helium 54 enters 9 hot side inlet HXI6 of integrated heat exchanger after throttling.
Outlet HXO6 helium 55 in 9 hot end of integrated heat exchanger has three flow paths, can respectively obtain liquid helium and supercritical helium: 1. beat
Throttle opening 20, gas-liquid two-phase helium 56 enters vacuum dewar 21 after liquefaction, collects liquid helium.21 bottom liquid helium of vacuum dewar is opened to cut
Only valve 27, liquid helium enter various cryogenic environment demands 77, and 21 top helium 62 of vacuum dewar converges with knockout drum helium 61
At helium 63, integrated heat exchanger cold side inlet CXI6 is removed；2. opening supercritical helium throttle valve 22, critical pressure helium 58 enters gas
Liquid/gas separator 24.24 top helium 61 of gas-liquid separator converges with 21 top helium 62 of vacuum dewar into helium 63, goes integrated change
Hot device cold side inlet CXI6；24 bottom supercritical helium shut-off valve 25 of gas-liquid separator is opened, supercritical helium I 80 enters various deep coolings
Environmental demand 77；3. opening cold helium shut-off valve 23, deep cooling helium 59 and 24 bottom supercritical helium I of gas-liquid separator exchange heat, cold
But High-pressure supercritical helium II 81 enters various cryogenic environment demands 77 after.
Vacuum dewar liquid helium 82, supercritical helium 80,81 enter various cryogenic environment demands 77 and are used as cold source, helium after evaporation
It is divided into two-way: 1. opens helium and remove gas-liquid separator shut-off valve 26, evaporate cold 60 air inlet liquid/gas separator 24 of helium；It is cut 2. opening
Only valve 28 evaporate cold helium 83 and converge with evaporation helium 84.
Shut-off valve 31 is opened, 9 cold side outlet CXO5 helium 70 of integrated heat exchanger converges with II helium 66 of cold junction temperature sequence
For helium 71, into 9 cold side inlet CXI4 of integrated heat exchanger.Open shut-off valve 32,9 cold side outlet CXO4 helium of integrated heat exchanger
72 with III helium 67 of cold junction temperature sequence confluence be helium 73, into 9 cold side inlet CXI3 of integrated heat exchanger.Open shut-off valve
33,9 cold side outlet CXO3 helium 74 of integrated heat exchanger is helium (75) with IV helium 68 of cold junction temperature sequence confluence, into integrated
9 cold side inlet CXI2 of heat exchanger.Shut-off valve 34 is opened, 9 cold side outlet CXO2 helium 38 of integrated heat exchanger is cut by rewarming helium
Only valve 7 enters 1 import of helium compressor.
Helium 84 is according to cold junction temperature sequence (sequence I 65, sequence II 66, sequence after various 77 rewarmings of cryogenic environment demand
III 67, sequence IV is 68) different, converges respectively with integrated heat exchanger cold side outlet helium 64,70,72,74.
9 hot end of integrated heat exchanger exports different hot-side temperature sequence (sequence I 86, sequence II 87, sequence III 88, sequences IV
(89)) helium passes through helium respectively and converges into 90 into various cryogenic environment demand shut-off valves 34,35,36,37, then into various depths
Cold environmental demand 77.Shut-off valve 34 is opened, I helium 86 of hot-side temperature sequence is by bus dump 90, into various cryogenic environments
Demand 77.Shut-off valve 35 is opened, II helium 87 of hot-side temperature sequence is by bus dump 90, into various cryogenic environment demands
77.Shut-off valve 36 is opened, III helium 88 of hot-side temperature sequence is by bus dump 90, into various cryogenic environment demands 77.
Shut-off valve 37 is opened, IV helium 89 of hot-side temperature sequence is by bus dump 90, into various cryogenic environment demands
77。
It may be noted that for different hot-side temperature sequences (sequence I 86, sequence II 87, sequence III 88, sequence IV 89) helium
It can individually (after outlet HXO1 high temperature impurity absorption device, outlet HXO2, be exported from the outlet of integrated heat exchanger hot end as needed
HXO3, outlet HXO4) it takes out, as various 77 cold sources of cryogenic environment demand；Also different hot-side temperature sequence (sequences can be used
I 86, the combination of sequence II 87, sequence III 88, sequence IV 89) helium, to obtain the helium cold source of different temperatures.
It especially indicates, various cryogenic environment demands 77 export different temperatures sequence helium 65,66,67,68 according to itself temperature
Degree feature may be selected and some 9 cold side outlet helium 64 or 70 or 72 of integrated heat exchanger or 74 confluences；It can also be simultaneously
With 64,70,72 and 74 confluences.
A kind of helium liquefaction of the present invention and different temperatures grade helium cold source supply technology and device, it is pre- by compressed helium liquid nitrogen
Cold, high/low temperature expanding machine twin-stage swell refrigeration and J-T throttling refrigeration obtain liquid helium and supercritical helium and different temperatures grade
Helium cold source.The present invention obtains normal pressure liquid helium and supercritical helium and different temperatures sequence using an integrated heat exchange equipment
Helium cold source, to meet the needs of different deep freeze refrigeration plants are to helium cold source.Heat transfer process is concentrated on one and integrated changed by the present invention
In hot device, reduces heat exchanger quantity, improve level of integrated system.Apparatus structure is compact, effectively reduces occupied area.
A kind of helium liquefaction of the present invention and different temperatures grade helium cold source supply technology and device, it is pre- by compressed helium liquid nitrogen
Cold, high/low temperature expanding machine twin-stage swell refrigeration and J-T throttling refrigeration obtain liquid helium and supercritical helium and different temperatures grade
Helium cold source.The present invention obtains normal pressure liquid helium and supercritical helium and different temperatures sequence using an integrated heat exchange equipment
Helium cold source, to meet the needs of different deep freeze refrigeration plants are to helium cold source.
The present invention uses high/low temperature helium expanding machine twin-stage swell refrigeration.Helium conduct after high temperature expander one-stage expansion
Heat source continues to be cooled, the main source then into cryogenic expansion machine swell refrigeration, as apparatus of the present invention system cooling capacity.
The present invention can produce liquid helium and supercritical helium and different temperatures sequence helium cold source, can meet various deep cooling rings
Demand of the border to helium cold source.
The present invention concentrates on heat transfer process in one integrated heat exchanger, reduces heat exchanger quantity, improves system collection
Cheng Du.Apparatus structure is compact, effectively reduces occupied area.
Claims (4)
1. a kind of helium liquefaction and different temperatures grade helium cold source feedway, it include integrated heat exchanger, helium compressor,
High/low temperature helium expanding machine, J-T throttle valve, vacuum dewar tank, knockout drum, flow path shut-off valve, it is characterised in that the helium
Air compressor (1) import be separately connected He buffer tank (3) import, shut-off valve (2) import, rewarming helium shut-off valve (7) outlet,
Helium supplements shut-off valve (78) outlet, and helium supplements shut-off valve (78) import and connects helium gas source, helium compressor (1) outlet
It is separately connected He buffer tank (3) outlet shutoff valve (5) outlet, water cooler (6) import by compressed helium check-valves (4),
Water cooler (6) outlet connects integrated heat exchanger (9) hot side inlet HXI1 by compressed helium shut-off valve (8), and described integrate is changed
Hot device (9) hot end outlet HXO1 is separately connected high temperature impurity absorption device (11) inlet shutoff valve (10) import, bypass cutoff valve
(12) import;Shut-off valve (10) outlet connection high temperature impurity absorption device (11) outlet connection shut-off valve (13) import, shut-off valve
(13) outlet is separately connected bypass cutoff valve (12) outlet, integrated heat exchanger (9) hot side inlet HXI2, shut-off valve (34) import;
Outlet HXO2 in integrated heat exchanger (9) hot end is separately connected integrated heat exchanger (9) hot side inlet HXI3, high temperature expander (14) import
Shut-off valve (15) import, shut-off valve (35) import;Shut-off valve (15) outlet connection high temperature expander (14) import, high temperature expander
(14) outlet connection integrated heat exchanger (9) hot side inlet EXI1;Integrated heat exchanger (9) hot end exports EXO1 connection cryogenic expansion machine
(19) inlet shutoff valve (18) import, shut-off valve (18) outlet connection cryogenic expansion machine (19) import;Cryogenic expansion machine (19) goes out
Mouth is separately connected shut-off valve (30) outlet, integrated heat exchanger (9) cold side inlet CXI5.
2. helium liquefaction according to claim 1 and different temperatures grade helium cold source feedway, it is characterised in that described
Integrated heat exchanger (9) hot end outlet HXO3 be separately connected the hot side inlet HXI4 of integrated heat exchanger (9), shut-off valve (36) into
Mouthful, integrated heat exchanger (9) hot end exports HXO4 connection low temperature impurity absorber (16) import, low temperature impurity absorber (16)
Outlet is separately connected integrated heat exchanger (9) hot side inlet HXI5, shut-off valve (37) import;The outlet of integrated heat exchanger (9) hot end
HXO5 connection cryogenic throttle valve (17) import, cryogenic throttle valve (17) outlet connection integrated heat exchanger (9) hot side inlet HXI6.
3. helium liquefaction according to claim 2 and different temperatures grade helium cold source feedway, it is characterised in that described
The hot end outlet HXO6 of integrated heat exchanger (9) is separately connected throttle valve (20) import, supercritical helium throttle valve (22) import, cut-off
Valve (23) import;Throttle valve (20) outlet connection vacuum dewar (21) import, supercritical helium throttle valve (22) outlet connection gas-liquid
Separator (24) import, cold helium shut-off valve (23) outlet connection gas-liquid separator (24) bottom heat exchanger tube import;Vacuum dewar
(21) top gas outlet is separately connected the outlet of gas-liquid separator (24) top gas, integrated heat exchanger (9) cold side inlet CXI6;
To connect various cryogenic environment demands (77) overcritical by supercritical helium shut-off valve 25 for the outlet of gas-liquid separator (24) supercritical helium
Helium import;Shut-off valve (34) outlet, shut-off valve (35) outlet, shut-off valve (36) outlet, the common connection in shut-off valve (37) outlet are each
Kind cryogenic environment demand (77) import, outlet, shut-off valve (28) import of the various cryogenic environment demands (77) connect helium
Remove gas-liquid separator shut-off valve (26) import, shut-off valve (26) outlet connection gas-liquid separator (24) gas feed, vacuum dewar
(21) bottom liquid outlet connects various cryogenic environment demand (77) liquid helium imports by liquid helium shut-off valve (27);Gas-liquid separator
(24) bottom heat transfer tube outlet, gas-liquid separator (24) bottom liquid outlet are connect with various cryogenic environment demand (77) imports;
Shut-off valve (28) outlet is separately connected various cryogenic environment demand (77) gas vents, shut-off valve (30) import, shut-off valve (31)
Import, shut-off valve (32) import, shut-off valve (33) import.
4. helium liquefaction according to claim 3 and different temperatures grade helium cold source feedway, it is characterised in that described
The cold side outlet CXO5 of integrated heat exchanger (9) is separately connected shut-off valve (31) outlet, integrated heat exchanger (9) cold side inlet CXI4;
Integrated heat exchanger (9) cold side outlet CXO4 is separately connected shut-off valve (32) outlet, integrated heat exchanger (9) cold side inlet CXI3;Collection
Shut-off valve (33) outlet, integrated heat exchanger (9) cold side inlet CXI2 are separately connected at heat exchanger (9) cold side outlet CXO3;It is integrated
Heat exchanger (9) cold side outlet CXO2 connection rewarming helium shut-off valve (7) import;Integrated heat exchanger (9) cold side inlet CXI1 connection
Liquid nitrogen storage tank, outlet connection Nitrogen pipe network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910632824.3A CN110398132B (en) | 2019-07-14 | 2019-07-14 | Helium liquefying and different temperature grade helium cold source supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910632824.3A CN110398132B (en) | 2019-07-14 | 2019-07-14 | Helium liquefying and different temperature grade helium cold source supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110398132A true CN110398132A (en) | 2019-11-01 |
| CN110398132B CN110398132B (en) | 2024-04-09 |
Family
ID=68325440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910632824.3A Active CN110398132B (en) | 2019-07-14 | 2019-07-14 | Helium liquefying and different temperature grade helium cold source supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110398132B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129040A (en) * | 2020-09-27 | 2020-12-25 | 杭州制氧机集团股份有限公司 | Liquid xenon cooling and xenon reliquefaction skid-mounted device and method thereof |
| CN113983759A (en) * | 2021-10-29 | 2022-01-28 | 四川空分设备(集团)有限责任公司 | Integrated internal purification helium liquefying device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4498313A (en) * | 1982-12-27 | 1985-02-12 | National Laboratory For High Energy Physics | Compact helium gas-refrigerating and liquefying apparatus |
| US4606744A (en) * | 1984-07-20 | 1986-08-19 | Sulzer Brothers Limited | Method and apparatus for liquefying a low-boiling gas |
| US4659351A (en) * | 1986-01-29 | 1987-04-21 | Air Products And Chemicals, Inc. | Combined process to produce liquid helium, liquid nitrogen, and gaseous nitrogen from a crude helium feed |
| US5144806A (en) * | 1990-05-31 | 1992-09-08 | Linde Aktiengesellschaft | Process for the liquefaction of gases |
| JPH06337191A (en) * | 1993-03-30 | 1994-12-06 | Nippon Sanso Kk | Method and device for liquefying helium |
| JPH08261643A (en) * | 1995-03-20 | 1996-10-11 | Ishikawajima Harima Heavy Ind Co Ltd | Helium liquefaction refrigerating apparatus |
| US5836173A (en) * | 1997-05-01 | 1998-11-17 | Praxair Technology, Inc. | System for producing cryogenic liquid |
| US20100175425A1 (en) * | 2009-01-14 | 2010-07-15 | Walther Susan T | Methods and apparatus for liquefaction of natural gas and products therefrom |
| DE102016000394A1 (en) * | 2016-01-14 | 2017-07-20 | Linde Aktiengesellschaft | Method for cooling a medium |
| CN109764637A (en) * | 2018-12-28 | 2019-05-17 | 中国科学院理化技术研究所 | A kind of novel helium liquefier flow path device |
| CN211977383U (en) * | 2019-07-14 | 2020-11-20 | 杭州制氧机集团股份有限公司 | Helium liquefying and helium cold source supply device with different temperature grades |
-
2019
- 2019-07-14 CN CN201910632824.3A patent/CN110398132B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4498313A (en) * | 1982-12-27 | 1985-02-12 | National Laboratory For High Energy Physics | Compact helium gas-refrigerating and liquefying apparatus |
| US4606744A (en) * | 1984-07-20 | 1986-08-19 | Sulzer Brothers Limited | Method and apparatus for liquefying a low-boiling gas |
| US4659351A (en) * | 1986-01-29 | 1987-04-21 | Air Products And Chemicals, Inc. | Combined process to produce liquid helium, liquid nitrogen, and gaseous nitrogen from a crude helium feed |
| US5144806A (en) * | 1990-05-31 | 1992-09-08 | Linde Aktiengesellschaft | Process for the liquefaction of gases |
| JPH06337191A (en) * | 1993-03-30 | 1994-12-06 | Nippon Sanso Kk | Method and device for liquefying helium |
| JPH08261643A (en) * | 1995-03-20 | 1996-10-11 | Ishikawajima Harima Heavy Ind Co Ltd | Helium liquefaction refrigerating apparatus |
| US5836173A (en) * | 1997-05-01 | 1998-11-17 | Praxair Technology, Inc. | System for producing cryogenic liquid |
| US20100175425A1 (en) * | 2009-01-14 | 2010-07-15 | Walther Susan T | Methods and apparatus for liquefaction of natural gas and products therefrom |
| DE102016000394A1 (en) * | 2016-01-14 | 2017-07-20 | Linde Aktiengesellschaft | Method for cooling a medium |
| CN109764637A (en) * | 2018-12-28 | 2019-05-17 | 中国科学院理化技术研究所 | A kind of novel helium liquefier flow path device |
| CN211977383U (en) * | 2019-07-14 | 2020-11-20 | 杭州制氧机集团股份有限公司 | Helium liquefying and helium cold source supply device with different temperature grades |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129040A (en) * | 2020-09-27 | 2020-12-25 | 杭州制氧机集团股份有限公司 | Liquid xenon cooling and xenon reliquefaction skid-mounted device and method thereof |
| CN112129040B (en) * | 2020-09-27 | 2024-02-20 | 杭氧集团股份有限公司 | Liquid xenon cooling and reliquefaction skid-mounted device and method thereof |
| CN113983759A (en) * | 2021-10-29 | 2022-01-28 | 四川空分设备(集团)有限责任公司 | Integrated internal purification helium liquefying device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110398132B (en) | 2024-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105444523B (en) | Using BOG itself compression-expansions liquefaction BOG re-liquefied system and technique | |
| CN108626902A (en) | The Trans-critical cycle system of the supercooling with enhancing for high environment temperature | |
| CN103105021B (en) | CO 2the refrigerating heat pump unit of trans critical cycle and control method thereof | |
| CN105180489B (en) | A kind of mixture throttling refrigerating machine and its refrigerating method for adapting to variable parameter operation | |
| CN102971593A (en) | Gas liquefaction system and method | |
| CN110398132A (en) | A kind of helium liquefaction and different temperatures grade helium cold source feedway | |
| CN106642837B (en) | A kind of philip refrigerator of the built-in liquefier of band | |
| CN106123423B (en) | A kind of low-temperature cold accumulation system and method | |
| CN202453753U (en) | High-accuracy constant temperature control system for preserving organ | |
| CN201666706U (en) | Refrigerating system | |
| CN104729233B (en) | Natural gas liquefaction system with combination of auto-cascade refrigeration system and pulse tube refrigerator | |
| CN106595220B (en) | Liquefaction system for liquefying natural gas and liquefaction method thereof | |
| CN207674762U (en) | The coupled system of medically low temperature environment is produced based on double stage heat pump and autocascade cycle | |
| CN209246450U (en) | A kind of low pressure heat pump air-breathing supercharging device | |
| CN110779277A (en) | Air separation energy-saving device for producing liquid nitrogen by utilizing LNG cold energy and mixed refrigeration working medium circulation | |
| CN203036904U (en) | Refrigerating heat pump unit for CO2 trans-critical cycle | |
| CN211977383U (en) | Helium liquefying and helium cold source supply device with different temperature grades | |
| CN110470073B (en) | Carbon dioxide heat pump system | |
| CN107560226B (en) | Precooling type direct throttling JT refrigerating machine in liquid hydrogen temperature zone | |
| CN206377880U (en) | Suitable for ultra-high vacuum environment compact without liquid helium 1K cryogenic refrigerating units | |
| Knudsen et al. | FRIB helium refrigeration system commissioning and performance test results | |
| CN110715504B (en) | Residual pressure power generation liquefaction system of high-pressure natural gas | |
| CN101324392B (en) | Pressure regulation system of ultra-low temperature refrigerating device | |
| CN111043805B (en) | High-power variable temperature pressure experiment system for liquid nitrogen temperature zone | |
| CN211823306U (en) | Indirect cooling system utilizing condensation heat for defrosting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: No. 799 Xiangfu Road, Qingshanhu Street, Lin'an District, Hangzhou City, Zhejiang Province, 311241 Applicant after: Hang Yang Group Co.,Ltd. Address before: No. 799 Xiangfu Road, Qingshanhu Street, Lin'an District, Hangzhou City, Zhejiang Province, 311241 Applicant before: HANGZHOU HANGYANG Co.,Ltd. Country or region before: China |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |