JP2869571B2 - Steam retort sterilizer and slow cooling method using the same - Google Patents
Steam retort sterilizer and slow cooling method using the sameInfo
- Publication number
- JP2869571B2 JP2869571B2 JP8233290A JP8233290A JP2869571B2 JP 2869571 B2 JP2869571 B2 JP 2869571B2 JP 8233290 A JP8233290 A JP 8233290A JP 8233290 A JP8233290 A JP 8233290A JP 2869571 B2 JP2869571 B2 JP 2869571B2
- Authority
- JP
- Japan
- Prior art keywords
- cooling water
- tank
- cooling
- water tank
- processing tank
- 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 - Fee Related
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- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は蒸気式レトルト殺菌装置及びこの装置を利用
した徐冷方法に関するものである。Description: TECHNICAL FIELD The present invention relates to a steam type retort sterilizer and a slow cooling method using the same.
従来の技術 従来、蒸気式レトルト殺菌装置の処理槽内に別個の冷
却水タンクを付設した装置はみられない。2. Description of the Related Art Heretofore, there has been no device in which a separate cooling water tank is provided in a treatment tank of a steam retort sterilizer.
レトルト殺菌処理において、ビン又はプラスチック容
器に装填された被処理物を処理する場合、前記ビン又は
プラスチック容器に急激な温度差が生じる処理をすると
破壊したり、変形してしまって被処理物に悪影響が出
る。In the retort sterilization process, when processing an object loaded in a bottle or a plastic container, if the bottle or the plastic container is subjected to a process in which a rapid temperature difference is caused, the object is broken or deformed and adversely affects the object to be processed. coming out.
これを避けるため、従来特に殺菌終了後の冷却工程に
おいて徐冷をすることが要求されてきた。このため、徐
冷に必要な量に応じたタンクを処理槽の外部で別個に設
け、このタンクに冷却水を準備し、冷却工程でこの冷却
水を使用して徐冷を行なっていた。In order to avoid this, it has been conventionally required to perform slow cooling, particularly in a cooling step after the end of sterilization. Therefore, a tank corresponding to the amount required for slow cooling is separately provided outside the processing tank, cooling water is prepared in this tank, and slow cooling is performed using this cooling water in the cooling step.
発明が解決しようとする課題 しかし、上記のように処理槽の他に別途タンクを設け
て、このタンクに徐冷用の冷却水を準備するためには、
設備が複雑となり、加熱源や加圧源を別個に設ける必要
があり、そのための配管、タンクの設置場所等に多大な
費用を要し、又、加圧タンクでない場合には100℃以上
の水を準備することができないという問題点もみられ
た。Problems to be Solved by the Invention However, in order to provide a separate tank in addition to the treatment tank as described above, and to prepare cooling water for slow cooling in this tank,
The equipment becomes complicated, and it is necessary to provide a heating source and a pressurizing source separately, which requires enormous costs for piping and tank installation locations. There was also a problem that it was not possible to prepare.
本発明の目的は上記のような問題点を解消し、処理槽
内に徐冷用として利用できる冷却水を準備できるタンク
を仕切壁を用いて設置すると共に冷却水や加熱源の供給
経路の切換えによって徐冷に必要な冷却水をいつでも準
備することのできる蒸気式レトルト殺菌装置及びこの装
置による徐冷方法を提供しようとするものである。An object of the present invention is to solve the above problems and install a tank capable of preparing cooling water that can be used for slow cooling in a processing tank by using a partition wall, and switch a supply path of a cooling water or a heating source. It is an object of the present invention to provide a steam type retort sterilizer capable of preparing cooling water required for slow cooling at any time, and a slow cooling method using this apparatus.
課題を解決するための手段 上記目的を達成するため、本発明のレトルト殺菌装置
としては第１発明に示すように、蒸気式レトルト殺菌装
置の処理槽内の一部に仕切壁による冷却水タンクを設
け、この冷却水タンクには冷却水供給路と加熱源供給路
とを接続し、冷却工程時に前記冷却水タンク内の冷却水
によって処理槽内の徐冷をするよう経路切換部を設けた
蒸気式レトルト殺菌装置とした。Means for Solving the Problems To achieve the above object, as a retort sterilizer of the present invention, as shown in the first invention, a cooling water tank with a partition wall is provided in a part of a treatment tank of a steam retort sterilizer. The cooling water tank is connected to a cooling water supply path and a heating source supply path, and is provided with a path switching unit for gradually cooling the inside of the processing tank with the cooling water in the cooling water tank during the cooling step. A retort sterilizer was used.
第２発明として、この装置を利用して徐冷用の冷却水
を準備して用いるために、蒸気式レトルト殺菌装置を用
いて行なう殺菌工程時に、処理槽内の一部に仕切壁によ
って構成された冷却水タンクに殺菌温度よりも低い冷却
水を準備し、冷却工程時に前記冷却水による被処理物の
徐冷をし、次いで前記冷却水をポンプにより処理槽内へ
強制循環させ、この強制循環時に前記冷却水タンクには
新たな冷却水を貯めると共に独自の加熱源によるさらに
低い冷却水を準備し、前記強制循環の冷却水を排水後、
新たに準備された冷却水による被処理物の徐冷を行な
い、次いでこの冷却水をポンプにより処理槽へ強制循環
させる一連の工程を繰返す蒸気式レトルト殺菌装置によ
る徐冷方法とした。As a second invention, in order to prepare and use cooling water for slow cooling using this apparatus, at the time of a sterilization step performed by using a steam type retort sterilization apparatus, a partition wall is formed in a part of the processing tank by a partition wall. In the cooling water tank, a cooling water lower than the sterilization temperature is prepared, the object to be treated is gradually cooled by the cooling water in the cooling step, and then the cooling water is forcibly circulated into the processing tank by a pump. Sometimes the cooling water tank stores new cooling water and prepares a lower cooling water by a unique heating source.After draining the cooling water of the forced circulation,
An object to be processed is gradually cooled by newly prepared cooling water, and then a series of steps of forcibly circulating the cooling water to the processing tank by a pump is repeated, and a slow cooling method by a steam retort sterilizer is used.
作 用 第１発明においては、処理槽内に仕切壁を介して冷却
水タンクを設け、このタンクにはそれぞれ冷却水供給路
及び加熱源供給路が接続されているので、本来殺菌処理
用として設けられた水や加熱源を経路切換部によって必
要時に容易に切換え利用することができるようになっ
た。Operation In the first invention, a cooling water tank is provided in the processing tank via a partition wall, and since the cooling water supply path and the heating source supply path are respectively connected to the tank, the cooling water tank is originally provided for sterilization processing. The used water and heating source can be easily switched and used when necessary by the path switching unit.
第２発明においては、処理槽の一部に冷却水タンクが
設けられているため、殺菌処理時に同時に冷却水タンク
内の水も加熱され、処理槽内温度と同等程度の温度にな
る。しかも、この冷却水タンクには冷却水又は加熱源の
供給によって処理槽内の処理物が許容できる温度差内の
冷却水を調整することができ、この冷却水による被処理
物の徐冷が可能となる。タンク内の冷却水が全部処理槽
へ供給された後には、処理槽下方よりポンプを介して引
抜き、再び処理槽へ戻すよう強制循環でき、前記冷却水
による徐冷が確実に行なわれる。In the second invention, since the cooling water tank is provided in a part of the processing tank, the water in the cooling water tank is also heated at the same time as the sterilization treatment, so that the temperature of the water becomes about the same as the temperature in the processing tank. In addition, cooling water or a heating source can be supplied to the cooling water tank to adjust the cooling water within a temperature difference within which the processing object in the processing tank can be tolerated, and the object to be processed can be gradually cooled by the cooling water. Becomes After all of the cooling water in the tank is supplied to the processing tank, the cooling water can be withdrawn from below the processing tank via a pump and forcedly circulated to return to the processing tank again, so that the cooling by the cooling water is reliably performed.
次いで、冷却水タンクには、前記冷却水及び加熱源の
供給路より新しく冷却水が準備され、適宜の温度（許容
温度差内の温度）にできる。従って、この新しい冷却水
による徐冷が引続いて行なわれる。Next, cooling water is newly prepared in the cooling water tank from the supply path of the cooling water and the heating source, and can be set to an appropriate temperature (a temperature within an allowable temperature difference). Therefore, the slow cooling by the new cooling water is continuously performed.
このように順次許容温度差内の低温度で準備された冷
却水を利用して、処理槽内を順次徐冷することができ、
ビンその他の容器や被処理物に悪影響を及ぼさない。In this way, using the cooling water prepared at a low temperature within the allowable temperature difference, the inside of the processing tank can be gradually cooled,
Does not adversely affect bottles, other containers, or objects to be processed.
実施例 以下、実施例である蒸気式レトルト殺菌装置及びこれ
を用いた徐冷方法について、図面を参照しながら説明す
る。EXAMPLES Hereinafter, a steam-type retort sterilizing apparatus according to an example and a slow cooling method using the same will be described with reference to the drawings.
第１図において、１は蒸気式レトルト殺菌装置で、蒸
気２が処理槽３内へ注入され、加圧下で殺菌温度まで上
昇され、被処理物４が上記温度の下で加熱殺菌される。
加熱殺菌処理のパターンは図示していないが、脱気工
程、昇温工程、加熱工程、冷却工程と順次行なわれ、加
熱工程では、例えば115℃で20分ホールドされる。次い
で、冷却工程では減圧すると共に冷却水による冷却が行
なわれる。In FIG. 1, reference numeral 1 denotes a steam-type retort sterilizer, in which steam 2 is injected into a processing tank 3, which is heated to a sterilizing temperature under pressure, and the object 4 is heated and sterilized under the above-mentioned temperature.
Although the pattern of the heat sterilization treatment is not shown, a deaeration step, a temperature raising step, a heating step, and a cooling step are sequentially performed. In the heating step, the pattern is held at, for example, 115 ° C. for 20 minutes. Next, in the cooling step, the pressure is reduced and cooling with cooling water is performed.
５は仕切壁で、処理槽内で冷却水タンク６を構成する
ようになっている。７は加熱源供給部で冷却水タンク６
内に設置され、殺菌処理用の蒸気２が切換弁８を介して
接続され冷却水供給部10を構成している。９は冷却水
で、冷却水タンク６に接続されている。Reference numeral 5 denotes a partition wall, which constitutes a cooling water tank 6 in the processing tank. 7 is a heating source supply unit and a cooling water tank 6
The steam 2 for sterilization is connected via a switching valve 8 to form a cooling water supply unit 10. 9 is a cooling water, which is connected to the cooling water tank 6.
上記構成において、殺菌処理時には、第１図に示すよ
うに、蒸気２が処理槽３へ供給される。その間に冷却水
タンク６には冷却水供給部10により冷却水９が供給さ
れ、処理槽の加熱と共に温度上昇する。In the above configuration, during the sterilization process, steam 2 is supplied to the processing tank 3 as shown in FIG. During this time, cooling water 9 is supplied to the cooling water tank 6 by the cooling water supply unit 10, and the temperature rises with the heating of the processing tank.
第２図は冷却水タンク６の冷却水による徐冷時を示す
もので、冷却水タンク６内の冷却水９は処理槽３へ供給
されて、スプレーノズル11より噴射され被処理物の徐冷
を行なう。冷却水９の温度は冷却水供給部10からの冷却
水９によりビン等の許容温度差内の低い温度に調整され
ている。FIG. 2 shows a state in which the cooling water in the cooling water tank 6 is gradually cooled by the cooling water. The cooling water 9 in the cooling water tank 6 is supplied to the processing tank 3 and is sprayed from the spray nozzle 11 to gradually cool the object to be processed. Perform The temperature of the cooling water 9 is adjusted by the cooling water 9 from the cooling water supply unit 10 to a low temperature within an allowable temperature difference of a bottle or the like.
第３図は、前記冷却水タンク６の冷却水９が全部処理
槽３へ供給され、処理槽３の下部からポンプ12を介して
強制循環されている状態を示すものである。冷却水タン
ク６内へは新しい冷却水９が供給され、加熱源供給部７
によって処理槽の温度との差が許容範囲にある冷却水を
準備するようになっている。FIG. 3 shows a state in which the cooling water 9 in the cooling water tank 6 is all supplied to the processing tank 3 and is forcibly circulated from the lower part of the processing tank 3 via the pump 12. New cooling water 9 is supplied into the cooling water tank 6, and the heating source supply unit 7
Thereby, cooling water having a difference from the temperature of the processing tank within an allowable range is prepared.
第４図はこの新しい冷却水がポンプ12を介して処理槽
３へ供給される状態を示している。FIG. 4 shows a state in which the new cooling water is supplied to the processing tank 3 via the pump 12.
その後は第３図と第４図との状態を順次繰返すことに
なる。Thereafter, the states of FIG. 3 and FIG. 4 are sequentially repeated.
発明の効果 本発明の蒸気式レトルト殺菌装置では、処理槽内に仕
切壁を介して冷却水タンクを設け、ここに処理槽とは温
度差のある冷却水を準備し、循環させることによって徐
冷することができる装置を提供することができた。しか
も、別個にタンクを設置したり、加圧装置を備えたり、
設置場所の配慮をしたりする必要なく、殺菌装置として
の蒸気又は冷却水の供給源を利用して、経路切換部によ
る切換えによって容易に冷却水の準備ができるようにな
った。しかも、処理槽の温度と比較して被処理物に悪影
響を及ぼさない許容範囲の温度差のある冷却水を適宜準
備できるので極めて効率がよい。Effect of the Invention In the steam retort sterilizer of the present invention, a cooling water tank is provided in the processing tank via a partition wall, and cooling water having a temperature difference from the processing tank is prepared and circulated by gradually cooling the tank. A device capable of performing such operations. Moreover, installing a separate tank, providing a pressure device,
The cooling water can be easily prepared by switching with the path switching unit using the supply source of steam or cooling water as a sterilizing device without having to consider the installation location. In addition, since cooling water having a temperature difference within an allowable range that does not adversely affect the object to be processed as compared with the temperature of the processing tank can be appropriately prepared, the efficiency is extremely high.
又、第２発明としての冷却方法は被処理物の材質や種
類によって急冷できない場合に、簡単な操作で、経路へ
の切換えによる徐冷用の冷却水を準備し、これを処理槽
へ注入し、一定時間強制循環し、冷却工程を円滑に行な
えるようになった。In the cooling method according to the second aspect of the present invention, when rapid cooling cannot be performed due to the material and type of the object to be processed, cooling water for slow cooling by switching to a path is prepared by a simple operation and injected into a processing tank. Forcibly circulating for a certain time, the cooling process can be performed smoothly.
第１図は本発明装置の全体を示す断面図で、殺菌処理時
を表わす。第２図は準備された冷却水を処理槽に供給し
た状態を示す要部断面図、第３図は冷却水の強制循環時
を示す要部断面図、第４図は新しく準備された冷却水の
供給時を示す要部断面図である。 １……蒸気式レトルト殺菌装置 ２……蒸気、３……処理槽、５……仕切壁 ６……冷却水タンク、７……加熱源供給部 ９……冷却水、10……冷却水供給部 12……ポンプFIG. 1 is a cross-sectional view showing the whole of the apparatus of the present invention, showing a sterilization process. FIG. 2 is a cross-sectional view of a main part showing a state where the prepared cooling water is supplied to the processing tank, FIG. 3 is a cross-sectional view of a main part showing a state of forced circulation of the cooling water, and FIG. 4 is a newly prepared cooling water. FIG. 6 is a cross-sectional view of a main part showing a state at the time of supply. DESCRIPTION OF SYMBOLS 1 ... Steam type retort sterilizer 2 ... Steam, 3 ... Treatment tank, 5 ... Partition wall 6 ... Cooling water tank, 7 ... Heat source supply unit 9 ... Cooling water, 10 ... Cooling water supply Part 12 Pump
Claims (2)
に仕切壁による冷却水タンクを設け、この冷却水タンク
には冷却水供給路と加熱源供給路とを接続し、冷却工程
時に前記冷却水タンク内の冷却水によって処理槽内の徐
冷をするよう経路切換部を設けたことを特徴とする蒸気
式レトルト殺菌装置。1. A cooling water tank having a partition wall is provided in a part of a processing tank of a steam type retort sterilizing apparatus, and a cooling water supply path and a heating source supply path are connected to the cooling water tank, and the cooling water tank is connected to the cooling water tank during a cooling step. A steam type retort sterilizer, wherein a path switching unit is provided so as to gradually cool the inside of the treatment tank with cooling water in the cooling water tank.
菌工程時に、処理槽内の一部に仕切壁によって構成され
た冷却水タンクに殺菌温度よりも低い冷却水を準備し、
冷却工程時に前記冷却水による被処理物の徐冷をし、次
いで前記冷却水をポンプにより処理槽内へ強制循環さ
せ、この強制循環時に前記冷却水タンクには新たな冷却
水を貯めると共に独自の加熱源によるさらに低い冷却水
を準備し、前記強制循環の冷却水を排水後、新たに準備
された冷却水による被処理物の徐冷を行ない、次いでこ
の冷却水をポンプにより処理槽へ強制循環させる一連の
工程を繰返すことを特徴とする蒸気式レトルト殺菌装置
による徐冷方法。2. In a sterilization step performed by using a steam type retort sterilizer, cooling water lower than a sterilization temperature is prepared in a cooling water tank formed by a partition wall in a part of the treatment tank,
During the cooling step, the object to be processed is gradually cooled by the cooling water, and then the cooling water is forcibly circulated into the processing tank by a pump.At the time of the forced circulation, the cooling water tank stores new cooling water and has its own Prepare a lower cooling water by a heating source, drain the cooling water of the forced circulation, gradually cool the object to be treated with the newly prepared cooling water, and then forcibly circulate the cooling water to the processing tank by a pump. A slow cooling method using a steam type retort sterilizer, wherein a series of steps for repeating the process are repeated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8233290A JP2869571B2 (en) | 1990-03-28 | 1990-03-28 | Steam retort sterilizer and slow cooling method using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8233290A JP2869571B2 (en) | 1990-03-28 | 1990-03-28 | Steam retort sterilizer and slow cooling method using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03280871A JPH03280871A (en) | 1991-12-11 |
| JP2869571B2 true JP2869571B2 (en) | 1999-03-10 |
Family
ID=13771608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8233290A Expired - Fee Related JP2869571B2 (en) | 1990-03-28 | 1990-03-28 | Steam retort sterilizer and slow cooling method using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2869571B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2896128A1 (en) * | 2006-01-18 | 2007-07-20 | Lagarde Soc Par Actions Simpli | Heat treating of hermetically packaged food product for sterilization/debacterization, comprises heating the product followed by cooling, and pre-cooling the product at ambient temperature by cold water circulation inside radiator pipes |
-
1990
- 1990-03-28 JP JP8233290A patent/JP2869571B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03280871A (en) | 1991-12-11 |
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