JP7080066B2 - 低温液化ガス発生装置 - Google Patents
低温液化ガス発生装置 Download PDFInfo
- Publication number
- JP7080066B2 JP7080066B2 JP2018023852A JP2018023852A JP7080066B2 JP 7080066 B2 JP7080066 B2 JP 7080066B2 JP 2018023852 A JP2018023852 A JP 2018023852A JP 2018023852 A JP2018023852 A JP 2018023852A JP 7080066 B2 JP7080066 B2 JP 7080066B2
- Authority
- JP
- Japan
- Prior art keywords
- liquefied gas
- delivery pipe
- storage tank
- gas generator
- housing
- 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.)
- Active
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- 230000005484 gravity Effects 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 127
- 239000007788 liquid Substances 0.000 description 66
- 229910052757 nitrogen Inorganic materials 0.000 description 59
- 239000007789 gas Substances 0.000 description 51
- 229910001873 dinitrogen Inorganic materials 0.000 description 9
- 238000009434 installation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 244000208734 Pisonia aculeata Species 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- 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
- F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
- F25J1/0012—Primary atmospheric gases, e.g. air
- F25J1/0015—Nitrogen
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- 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
- F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
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- 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
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- F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
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- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/0408—Level of content in the vessel
- F17C2250/0417—Level of content in the vessel with electrical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/0478—Position or presence
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/03—Treating the boil-off
- F17C2265/031—Treating the boil-off by discharge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
- F17C5/04—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases requiring the use of refrigeration, e.g. filling with helium or hydrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
-
- 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
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/60—Processes or apparatus using other separation and/or other processing means using adsorption on solid adsorbents, e.g. by temperature-swing adsorption [TSA] at the hot or cold end
- F25J2205/64—Processes or apparatus using other separation and/or other processing means using adsorption on solid adsorbents, e.g. by temperature-swing adsorption [TSA] at the hot or cold end by pressure-swing adsorption [PSA] at the hot end
-
- 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
- F25J2210/00—Processes characterised by the type or other details of the feed stream
- F25J2210/40—Air or oxygen enriched air, i.e. generally less than 30mol% of O2
-
- 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
- F25J2215/42—Nitrogen or special cases, e.g. multiple or low purity N2
-
- 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
- F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
- F25J2235/06—Lifting of liquids by gas lift, e.g. "Mammutpumpe"
-
- 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
- F25J2270/00—Refrigeration techniques used
- F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
-
- 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
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/62—Details of storing a fluid in a tank
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Clinical Laboratory Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Description
さらに従来の液体窒素発生装置においては、貯蔵槽内の液体窒素を外部へ取り出すための取出口の位置が固定されているため、供給された液体窒素を受容する容器の種類や大きさに応じて取出口の位置を変更することができない、あるいは、別途用意された接続用ホースを取出口へ接続して液体窒素を取り出す必要があった。
前記貯留タンクは、液化ガスを貯留する。
前記ガス導入器は、前記貯留タンクへ液化すべきガスを導入する。
前記冷凍回路は、前記貯留タンクに導入されたガスを冷却して液化する冷凍機を含む。
前記送出配管は、前記貯留タンクに連絡し、液化ガスの流出口を先端部に有する。
前記筐体は、前記液化ガス送出管の先端部を着脱可能に保持可能な操作部を有し、前記貯留タンク、前記冷凍回路、前記ガス導入器及び前記送出配管を収容する。
送出配管が引き出し可能に構成されるため、ハンドルを操作して取出口を任意の位置に移動させることができる。
筐体を縦長の直方体形状にすることで、内部の各ユニットを三次元的に配置して設置占有面積の低減を図ることができるとともに、送出配管が比較的長尺の場合でも筐体内に効率よく収納することができる。
これにより、引き出された送出配管の筐体内への収納が容易となる。
これにより、送出配管の垂下領域の引き上げ力がアシストされるため、ハンドルの引き出し操作が容易となる。
これにより、操作部に対するハンドルの着脱を容易に行うことができる。
これにより、送出配管内の液化ガスの気化を防止でき、送出配管の長尺化にも対応することが可能となる。
これにより、簡便に低温液化ガスを取り出すことが可能となる。
本実施形態では、低温液化ガス発生装置として、液体窒素発生装置を例に挙げて説明する。
本実施形態の液体窒素発生装置100は、液体窒素を発生させ、貯留し、取り出すのに必要なすべての機器を収納する筐体10を備える。
本実施形態において、筐体10は、正面11と、背面12と、2つの側面13と、天面14とを有する縦長の直方体で構成される。筐体10の正面11には、液体窒素を外部へ取り出すための操作部20が設けられる。
取出用配管42は、液体窒素が取り出されるときに開放される開閉弁42vを有する。取出用配管42の一端は、貯留タンク31の底部近傍(液体窒素の液面Lsよりも低い位置)に配置され、他端は後述する送出配管50に接続される。
排気用配管43は、貯留タンク31内の上部ガスを排出するときに開放される開閉弁43vを有する。排気用配管43の一端は、貯留タンク31の開口部310の近傍(液体窒素の液面Lsよりも高い位置)に配置され、他端は筐体10の内部、あるいは筐体10の外部に配置される。
コントローラ35は、本実施形態では第2の室16に設置されるが、これに限られず、第1の室15に設置されてもよい。
操作部20は、図1及び図3に示すように、正面11の概略中央部に設置される。操作部20は、ケース部21と、保持部22と、支持台23とを有する。
本実施形態において、送出配管50は、ハンドル52を介して操作部20から筐体10の外側へ引き出すことが可能に構成される。図8は、送出配管50の先端部50b(ハンドル52)を筐体10の外部へ引き出した状態を示す側断面図である。以下、この送出配管50の引出し機構について説明する。
次に、本実施形態の液体窒素発生装置100の典型的な動作について説明する。
20…操作部
22…保持部
23…支持台
31…貯留タンク
32…ガス導入器
33…冷凍機
34…圧縮機ユニット
50…送出配管
501…アーチ領域
502…垂下領域
50b…先端部
51…取出口
52…ハンドル
70…張力発生機構
71…第1の定荷重バネ
72…第2の定荷重バネ
100…液体窒素発生装置(低温液化ガス発生装置)
Claims (6)
- 液化ガスを貯留する貯留タンクと、
前記貯留タンクへ液化すべきガスを導入するガス導入器と、
前記貯留タンクに導入されたガスを冷却して液化する冷凍機を含む冷凍回路と、
前記貯留タンクに連絡し、液化ガスの取出口を先端部に有する送出配管と、
前記送出配管の先端部を着脱可能に保持可能な操作部を有し、前記貯留タンク、前記冷凍回路、前記ガス導入器及び前記送出配管を収容する筐体と
を具備し、
前記送出配管の先端部は、前記取出口の近傍に固定されたハンドルを含み、
前記送出配管は、前記ハンドルを介して前記操作部から前記筐体の外側へ引き出すことが可能に構成され、
前記筐体は、前記操作部を有する正面と、前記正面に対向する背面とを有する縦長の直方体で構成され、
前記送出配管は、前記正面と前記背面との間において前記貯留タンクの上部に架け渡されるアーチ領域と、前記貯留タンクよりも前記背面側に位置し重力方向に垂下する垂下領域とを有する
低温液化ガス発生装置。 - 請求項1に記載の低温液化ガス発生装置であって、
前記筐体の内部に設けられた張力発生機構をさらに具備し、
前記張力発生機構は、前記アーチ領域に設けられ前記ハンドルの引き出し方向とは逆の方向へ一定荷重を付与する第1の定荷重バネを有する
低温液化ガス発生装置。 - 請求項2に記載の低温液化ガス発生装置であって、
前記張力発生機構は、前記垂下領域に設けられ前記ハンドルの引き出し方向へ一定の荷重を付与する第2の定荷重バネをさらに有する
低温液化ガス発生装置。 - 請求項1~3のいずれか1つに記載の低温液化ガス発生装置であって、
前記操作部は、前記ハンドルを磁気的に吸着する保持部を有する
低温液化ガス発生装置。 - 請求項1~4のいずれか1つに記載の低温液化ガス発生装置であって、
前記送出配管は、真空断熱層を有する二重構造のフレキシブルホースで構成される
低温液化ガス発生装置。 - 請求項1~5のいずれか1つに記載の低温液化ガス発生装置であって、
前記操作部は、前記取出口から送出される低温液化ガスを受容する容器を支持することが可能に構成された支持台を有する
低温液化ガス発生装置。
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