JPH0451139B2 - - Google Patents
Info
- Publication number
- JPH0451139B2 JPH0451139B2 JP664488A JP664488A JPH0451139B2 JP H0451139 B2 JPH0451139 B2 JP H0451139B2 JP 664488 A JP664488 A JP 664488A JP 664488 A JP664488 A JP 664488A JP H0451139 B2 JPH0451139 B2 JP H0451139B2
- Authority
- JP
- Japan
- Prior art keywords
- carbon dioxide
- adsorption device
- storage
- atmospheric gas
- gas
- 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.)
- Expired - Lifetime
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 124
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 62
- 239000001569 carbon dioxide Substances 0.000 claims description 62
- 238000001179 sorption measurement Methods 0.000 claims description 48
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 17
- 230000008929 regeneration Effects 0.000 claims description 10
- 238000011069 regeneration method Methods 0.000 claims description 10
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 description 39
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 239000001301 oxygen Substances 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 235000013305 food Nutrition 0.000 description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 235000019688 fish Nutrition 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、貯蔵庫内の雰囲気ガスを、活性炭を
充填した炭酸ガス吸着装置に供給して、前記活性
炭による炭酸ガスの吸着除去によつて前記雰囲気
ガス中の炭酸ガスの含有率を調整し、前記炭酸ガ
ス吸着装置からの調整済雰囲気ガスを前記貯蔵庫
内に返送し、前記炭酸ガス吸着装置による炭酸ガ
ス吸着能力が低下した時に、前記炭酸ガス吸着装
置への前記雰囲気ガスの供給を停止して、前記炭
酸ガス吸着装置内への空気の流通によつて前記活
性炭を再生する貯蔵庫内雰囲気調整方法に関す
る。Detailed Description of the Invention [Industrial Application Field] The present invention supplies atmospheric gas in a storage to a carbon dioxide adsorption device filled with activated carbon, and removes the carbon dioxide gas by adsorption and removal by the activated carbon. The content of carbon dioxide in the atmospheric gas is adjusted, the adjusted atmospheric gas from the carbon dioxide adsorption device is returned to the storage, and when the carbon dioxide adsorption capacity of the carbon dioxide adsorption device decreases, the carbon dioxide gas is removed. The present invention relates to a storage storage atmosphere adjustment method in which the supply of the atmospheric gas to the adsorption device is stopped and the activated carbon is regenerated by circulating air into the carbon dioxide adsorption device.
従来の上記の貯蔵庫内雰囲気調整方法は、炭酸
ガス吸着装置に対する再生工程完了後、すぐに雰
囲気ガスの供給を開始して循環させていた。
In the above-described conventional method for adjusting the atmosphere in a storage, the supply of atmospheric gas is started and circulated immediately after the regeneration process for the carbon dioxide adsorption device is completed.
しかし、再生工程完了時には、炭酸ガス吸着装
置内に、活性炭再生のために流通させる空気が残
存しているために、雰囲気ガスの循環によつて、
炭酸ガス吸着装置内の残存空気が貯蔵庫内に導入
され、それによつて貯蔵庫内の雰囲気ガス中の含
有酸素量が多くなつたり、大きく変動したりし
て、収容物が酸素との反応によつて劣化しやすく
長期保存が困難になる虞れがあつた。
However, when the regeneration process is completed, there is still air left in the carbon dioxide adsorption device to be circulated for the purpose of regenerating activated carbon.
The residual air in the carbon dioxide adsorption device is introduced into the storage, which causes the amount of oxygen contained in the atmospheric gas in the storage to increase or fluctuate greatly, causing the contents to react with oxygen. There was a risk that it would deteriorate easily and make long-term storage difficult.
本発明の目的は、炭酸ガス吸着装置の残存空気
が貯蔵庫内に入りにくくする点にある。 An object of the present invention is to make it difficult for residual air in the carbon dioxide adsorption device to enter the storage.
本発明の貯蔵庫内雰囲気調整方法の特徴手段
は、炭酸ガス吸着装置に対する再生工程完了後
で、雰囲気ガスの供給を再び開始して循環させる
前に、前記炭酸ガス吸着装置内の残存空気を減圧
除去することにあり、その作用効果は、次の通り
である。
The characteristic means of the storage atmosphere adjustment method of the present invention is that after the regeneration process for the carbon dioxide adsorption device is completed, the residual air in the carbon dioxide adsorption device is removed under reduced pressure before the supply of atmospheric gas is restarted and circulated. Its functions and effects are as follows.
つまり、再生工程完了後に、炭酸ガス吸着装置
内に残つた空気は、減圧除去するために、雰囲気
ガスの供給を開始して循環させるに伴つて、炭酸
ガスの含有率が調整された調整済雰囲気ガスだけ
が貯蔵庫内に返送され、貯蔵庫内への空気の侵入
に基づいて、雰囲気ガス中の含有酸素量が多くな
つたり、大きく変動したりするという不都合を防
止できる。
In other words, after the regeneration process is completed, the air remaining in the carbon dioxide adsorption device is removed under reduced pressure, and as the atmosphere gas is started to be supplied and circulated, a controlled atmosphere with an adjusted carbon dioxide content is created. Only the gas is returned to the storage, and it is possible to prevent the inconvenience that the amount of oxygen contained in the atmospheric gas increases or fluctuates greatly due to the intrusion of air into the storage.
従つて、貯蔵庫内の雰囲気ガスに含有する各ガ
スの含有率を、正確に調整維持でき、収容物を劣
化させずに長期にわたつて保存しやすくなつた。
Therefore, the content of each gas contained in the atmospheric gas in the storage can be adjusted and maintained accurately, making it easier to store stored items over a long period of time without deteriorating them.
次に、本発明の実施例を、図面に基づいて説明
する。
Next, embodiments of the present invention will be described based on the drawings.
図面に示すように、野菜、果物、魚、肉、等の
生鮮食品や、生めん、穀物、花、微生物等を一定
の温度で保存し、窒素と酸素と炭酸ガスの含有率
が適量になるように貯蔵雰囲気を調整することに
よつて、長期にわたつて鮮度を保つた状態で貯蔵
できるようにした貯蔵庫１を設け、貯蔵庫１内の
貯蔵物の呼吸作用で発生する炭酸ガス（CO2）を
活性炭２に吸着除去させて、雰囲気ガス中の炭酸
ガス（CO2）の含有率を調整して一定に維持する
炭酸ガス吸着装置３を設けて、貯蔵装置を構成し
てある。 As shown in the diagram, fresh foods such as vegetables, fruits, fish, meat, raw noodles, grains, flowers, microorganisms, etc. are stored at a constant temperature so that the content of nitrogen, oxygen, and carbon dioxide gas is maintained at appropriate levels. By adjusting the storage atmosphere, the storage room 1 is designed to maintain freshness over a long period of time . A storage device is provided with a carbon dioxide adsorption device 3 that adjusts and maintains the content of carbon dioxide (CO 2 ) in atmospheric gas at a constant level by adsorbing and removing carbon dioxide (CO 2 ) on activated carbon 2 .
つまり、貯蔵物を長期保存するために、庫内雰
囲気中の酸素濃度を低下させることで、貯蔵物の
呼吸作用を抑制できるばかりか、炭酸ガスを適量
含有させることで、一層呼吸抑制作用を促進さ
せ、同時に、細菌の活性化を抑えることができ
る。 In other words, in order to preserve stored items for a long time, reducing the oxygen concentration in the atmosphere inside the refrigerator not only suppresses the respiration effect of the stored items, but also further promotes the respiration suppressing effect by containing an appropriate amount of carbon dioxide gas. At the same time, the activation of bacteria can be suppressed.
そこで、例えば、前記貯蔵庫１内の雰囲気を、
窒素（N2）95％、酸素（O2）３％、炭酸ガス
（CO2）２％に調整して、生鮮食品を貯蔵した場
合に、貯蔵物の呼吸作用によつて窒素（N2）95
％、酸素（O2）２％、炭酸ガス（CO2）３％に変
化すると、初期調整時の雰囲気に戻して維持する
ために、次の雰囲気調整方法が行われる。 Therefore, for example, the atmosphere inside the storage 1 is
When fresh food is stored at a concentration of 95% nitrogen (N 2 ), 3% oxygen (O 2 ), and 2% carbon dioxide (CO 2 ), nitrogen (N 2 ) is released by the respiration of the stored food. 95
%, oxygen (O 2 ) 2%, and carbon dioxide gas (CO 2 ) 3%, the following atmosphere adjustment method is performed to return and maintain the atmosphere at the time of initial adjustment.
前記貯蔵庫１内の雰囲気ガスを、活性炭２を充
填した炭酸ガス吸着装置３に供給して、活性炭２
による炭酸ガス（CO2）の吸着除去によつて雰囲
気ガス中の炭酸ガス（CO2）の含有率を調整し、
炭酸ガス吸着装置３からの調整済雰囲気ガスを貯
蔵庫１内に返送する。 The atmospheric gas in the storage 1 is supplied to the carbon dioxide gas adsorption device 3 filled with activated carbon 2.
Adjust the content of carbon dioxide (CO 2 ) in the atmospheric gas by adsorbing and removing carbon dioxide (CO 2 ) with
The adjusted atmospheric gas from the carbon dioxide adsorption device 3 is returned into the storage 1.
前記炭酸ガス吸着装置３による炭酸ガス
（CO2）吸着能力が低下した時には、炭酸ガス吸
着装置３への前記雰囲気ガスの供給を停止して、
炭酸ガス吸着装置３内への空気の流通によつて活
性炭２を再生する。 When the carbon dioxide (CO 2 ) adsorption capacity of the carbon dioxide adsorption device 3 decreases, the supply of the atmospheric gas to the carbon dioxide adsorption device 3 is stopped,
The activated carbon 2 is regenerated by the flow of air into the carbon dioxide adsorption device 3.
そして、前記炭酸ガス吸着装置３に対する再生
工程完了後に、直に雰囲気ガスの供給を開始する
と、貯蔵庫１内に返送される調整済雰囲気ガス中
に、炭酸ガス吸着装置３内の空間に残存した空気
が混入して、庫内雰囲気が窒素（N2）93％、酸
素（O2）５％、炭酸ガス（CO2）２％と、初期調
整時とは大きく異なつた含有率になるために、炭
酸ガス吸着装置３に対する再生工程完了後で、雰
囲気ガスの供給を開始して循環させる前に、炭酸
ガス吸着装置３内の残存空気を減圧除去する。 When the supply of atmospheric gas is started immediately after the regeneration process for the carbon dioxide adsorption device 3 is completed, air remaining in the space inside the carbon dioxide adsorption device 3 is contained in the adjusted atmospheric gas returned to the storage 1. mixed in, and the inside atmosphere becomes 93% nitrogen (N 2 ), 5% oxygen (O 2 ), and 2% carbon dioxide (CO 2 ), which is a much different content than at the time of initial adjustment. After the regeneration process for the carbon dioxide adsorption device 3 is completed, the remaining air in the carbon dioxide adsorption device 3 is removed under reduced pressure before the supply of atmospheric gas is started and circulated.
上記雰囲気調整手順で、図面に示す貯蔵装置に
基づいて、具体的に記載すると、
○イ…貯蔵庫１内で発生した炭酸ガス（CO2）を除
去して雰囲気ガス中の炭酸ガス（CO2）の含有
率を調整する調整工程では、貯蔵庫１と炭酸ガ
ス吸着装置３下部のガス入口４とを接続する第
１切換位置に第１切換弁６を切換えると共に、
炭酸ガス吸着装置３上部のガス排出口５と貯蔵
庫１とを接続する第１切換位置に、第２切換弁
７を切換え操作し、循環ポンプ（P1）の作動
によつて貯蔵庫１内の雰囲気ガスを炭酸ガス吸
着装置３を通つて循環させる。 In the above atmosphere adjustment procedure, specifically described based on the storage device shown in the drawings, ○B... Carbon dioxide gas (CO 2 ) generated in the storage chamber 1 is removed and carbon dioxide gas (CO 2 ) in the atmospheric gas is removed. In the adjustment step of adjusting the content rate, the first switching valve 6 is switched to the first switching position that connects the storage 1 and the gas inlet 4 at the bottom of the carbon dioxide adsorption device 3, and
The second switching valve 7 is switched to the first switching position that connects the gas outlet 5 on the upper part of the carbon dioxide adsorption device 3 and the storage 1, and the atmosphere inside the storage 1 is changed by operating the circulation pump (P 1 ). The gas is circulated through the carbon dioxide adsorption device 3.
○ロ…前記炭酸ガス吸着装置３に対する再生工程で
は、第１開閉弁V1と第２開閉弁V2を開いて、
第１切換弁６を、炭酸ガス吸着装置３とそれに
対するエアー供給ポンプP2とを接続する第２
切換位置に、且つ、第２切換弁７を、炭酸ガス
吸着装置３と外気とが接続する第２切換位置に
切換え、エアー供給ポンプP2を作動させて炭
酸ガス吸着装置３内に空気を流通させる。○ B... In the regeneration process for the carbon dioxide adsorption device 3, the first on-off valve V 1 and the second on-off valve V 2 are opened,
The first switching valve 6 is connected to the second switching valve that connects the carbon dioxide adsorption device 3 and the air supply pump P 2 thereto.
and the second switching valve 7 is switched to the second switching position where the carbon dioxide gas adsorption device 3 and the outside air are connected, and the air supply pump P2 is operated to circulate air into the carbon dioxide gas adsorption device 3. let
○ハ…前記再生工程完了後の残存空気除去工程で
は、第１・第２切換弁６，７は、第２切換位置
に維持して、第１・第２開閉弁V1，V2を閉じ、
第３開閉弁V3を開いて真空ポンプVPを作動さ
せ、炭酸ガス吸着装置３内を減圧する。○C... In the residual air removal step after the completion of the regeneration step, the first and second switching valves 6 and 7 are maintained at the second switching position, and the first and second on-off valves V 1 and V 2 are closed. ,
The third on-off valve V3 is opened and the vacuum pump VP is operated to reduce the pressure inside the carbon dioxide adsorption device 3.
尚、貯蔵庫１内に酸素を補給するには、炭酸ガ
ス吸着装置３内に残存する空気量を調整すれば良
い。そして、前記○ハが終われば、再び前記○イの工
程から順に繰り返す。 Note that in order to replenish oxygen into the storage 1, the amount of air remaining in the carbon dioxide adsorption device 3 may be adjusted. Then, when the step ○C is completed, repeat the process from step ○B again.
前記炭酸ガス吸着装置３は、下部のガス入口４
に雰囲気ガスを加温して供給できるノンフレーム
トーチ８を設け、熱電対９で検温しながら特に低
温時には、制御装置１０の制御に基づいて雰囲気
ガス、又は、空気を一定の温度に加温供給して、
炭酸ガス吸着効率又は再生効率を低下させないよ
うにしてあり、吸着室Ｓ内は仕切り１１によつて
上下３層に区画され、夫々の室内に、活性炭２が
充填してある。 The carbon dioxide adsorption device 3 has a lower gas inlet 4.
A non-flame torch 8 that can heat and supply atmospheric gas is provided, and while measuring the temperature with a thermocouple 9, the atmospheric gas or air is heated and supplied to a constant temperature under the control of the control device 10, especially when the temperature is low. do,
The interior of the adsorption chamber S is divided into three upper and lower layers by a partition 11 so as not to reduce the carbon dioxide adsorption efficiency or regeneration efficiency, and each chamber is filled with activated carbon 2.
図中１２は、活性炭２充填口、兼、温度計１３
あるいは湿度計の挿入口である。 12 in the figure is the activated carbon 2 filling port, thermometer 13
Or a hygrometer insertion slot.
前記炭酸ガス吸着装置３は、貯蔵庫１に対して
一個に限らず、複数個を並列に接続して、それら
を選択的に使用して、連続的に雰囲気調整できる
ようにしても良い。
The carbon dioxide adsorption device 3 is not limited to one per storage 1, but a plurality of devices may be connected in parallel and used selectively to continuously adjust the atmosphere.
前記ノンフレームトーチ８を設けずに、雰囲気
ガスを直接炭酸ガス吸着装置３に供給しても良
い。 The atmospheric gas may be directly supplied to the carbon dioxide adsorption device 3 without providing the non-flame torch 8.
図面は本発明に係る貯蔵庫内雰囲気調整方法を
行うための貯蔵装置の概略図である。
１……貯蔵庫、２……活性炭、３……炭酸ガス
吸着装置、CO2……炭酸ガス。
The drawing is a schematic diagram of a storage device for carrying out the method for adjusting the atmosphere in a storage warehouse according to the present invention. 1... Storage, 2... Activated carbon, 3... Carbon dioxide adsorption device, CO 2 ... Carbon dioxide gas.
Claims (1)
した炭酸ガス吸着装置３に供給して、前記活性炭
２による炭酸ガス（CO2）の吸着除去によつて前
記雰囲気ガス中の炭酸ガス（CO2）の含有率を調
整し、前記炭酸ガス吸着装置３からの調整済雰囲
気ガスを前記貯蔵庫１内に返送し、前記炭酸ガス
吸着装置３による炭酸ガス（CO2）吸着能力が低
下した時に、前記炭酸ガス吸着装置３への前記雰
囲気ガスの供給を停止して、前記炭酸ガス吸着装
置３内への空気の流通によつて前記活性炭２を再
生する貯蔵庫内雰囲気調整方法であつて、前記炭
酸ガス吸着装置３に対する再生工程完了後で、前
記雰囲気ガスの供給を再び開始して循環させる前
に、前記炭酸ガス吸着装置３内の残存空気を減圧
除去する貯蔵庫内雰囲気調整方法。1 The atmospheric gas in the storage 1 is supplied to the carbon dioxide adsorption device 3 filled with activated carbon 2, and the activated carbon 2 adsorbs and removes carbon dioxide (CO 2 ), thereby removing carbon dioxide (CO 2 ) from the atmospheric gas. ), the adjusted atmospheric gas from the carbon dioxide adsorption device 3 is returned to the storage 1, and when the carbon dioxide (CO 2 ) adsorption capacity of the carbon dioxide adsorption device 3 has decreased, A method for adjusting the atmosphere in a storage chamber, in which the supply of the atmospheric gas to the carbon dioxide adsorption device 3 is stopped and the activated carbon 2 is regenerated by the circulation of air into the carbon dioxide gas adsorption device 3, the method comprising: A method for adjusting the atmosphere in a storage warehouse, in which residual air in the carbon dioxide adsorption device 3 is removed under reduced pressure after the regeneration process for the adsorption device 3 is completed and before the supply of the atmospheric gas is restarted and circulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63006644A JPH01181743A (en) | 1988-01-14 | 1988-01-14 | Method for adjusting the atmosphere in storehouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63006644A JPH01181743A (en) | 1988-01-14 | 1988-01-14 | Method for adjusting the atmosphere in storehouse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01181743A JPH01181743A (en) | 1989-07-19 |
| JPH0451139B2 true JPH0451139B2 (en) | 1992-08-18 |
Family
ID=11644079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63006644A Granted JPH01181743A (en) | 1988-01-14 | 1988-01-14 | Method for adjusting the atmosphere in storehouse |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01181743A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62236411A (en) * | 1986-04-09 | 1987-10-16 | 松下電器産業株式会社 | Perishable food storage apparatus |
-
1988
- 1988-01-14 JP JP63006644A patent/JPH01181743A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62236411A (en) * | 1986-04-09 | 1987-10-16 | 松下電器産業株式会社 | Perishable food storage apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01181743A (en) | 1989-07-19 |
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