JPS6026635Y2 - Vacuum drying equipment for foods, etc. - Google Patents
Vacuum drying equipment for foods, etc.Info
- Publication number
- JPS6026635Y2 JPS6026635Y2 JP3730080U JP3730080U JPS6026635Y2 JP S6026635 Y2 JPS6026635 Y2 JP S6026635Y2 JP 3730080 U JP3730080 U JP 3730080U JP 3730080 U JP3730080 U JP 3730080U JP S6026635 Y2 JPS6026635 Y2 JP S6026635Y2
- Authority
- JP
- Japan
- Prior art keywords
- vacuum
- drying
- pressure
- vacuum drying
- foods
- 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
Links
Landscapes
- Drying Of Solid Materials (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
Description
【考案の詳細な説明】
本考案は、食品などを対象とする中真空（１０＋ｙｏ＋
＋Ｈｇ程度）の真空乾燥装置に関するものである。[Detailed explanation of the invention] This invention is a medium vacuum (10+yo+
This relates to vacuum drying equipment (approximately +Hg).
食品などを真空乾燥することは周知であるが、これによ
り乾燥された製品は、表面が変色したりして自然乾燥の
ような良質のものを得ることができない。Although it is well known to vacuum dry food products, the surface of the products dried by this method becomes discolored and cannot be as good as when dried naturally.
本考案はかかる点を改善し、自然乾燥とほぼ同程度の良
質の乾燥を行なうことができ、さらに加えて、乾燥速度
の向上をはかることができる真空乾燥装置を提供せんと
するものである。The present invention aims to improve this point and provide a vacuum drying device that can perform drying of almost the same quality as natural drying and, in addition, can improve the drying speed.
本考案は前記の如き目的を達威せんがため、予め設定し
た圧力状態から周期的に乾燥槽内に吸気して真空破壊を
行なうと共に、その真空破壊時の圧力を被乾燥物の温度
に対応する飽和圧力程度に制御することを特徴とする。In order to achieve the above-mentioned purpose, the present invention periodically sucks air into the drying tank from a preset pressure state to break the vacuum, and also adjusts the pressure at the time of vacuum break to the temperature of the material to be dried. The feature is that the pressure is controlled to about the saturation pressure.
次に、本考案真空乾燥装置の実施の一例を添付図面につ
いて説明する。Next, an example of implementation of the vacuum drying apparatus of the present invention will be described with reference to the accompanying drawings.
第１図は本考案真空乾燥装置を示す系統図である。FIG. 1 is a system diagram showing the vacuum drying apparatus of the present invention.
図において、１は乾燥槽、２はその乾燥槽内に設置した
乾燥棚、３は排気管、４は真空ポンプを示す。In the figure, 1 is a drying tank, 2 is a drying shelf installed in the drying tank, 3 is an exhaust pipe, and 4 is a vacuum pump.
本考案においては、乾燥槽４に吸気管５を取付け、その
吸気管５にストップパルプ６と電磁弁７とを配設し、か
つ該電磁弁７をタイマ８．によりある設定された時間間
隔をおいて自動的に開閉すべくする。In the present invention, an intake pipe 5 is attached to the drying tank 4, a stop pulp 6 and a solenoid valve 7 are arranged in the intake pipe 5, and the solenoid valve 7 is connected to a timer 8. Automatically open and close at certain set time intervals.
そして、前記のストップ弁６は、電磁弁７を開いて乾燥
槽１内に吸気したとき、乾燥槽１内の圧力が被乾燥物の
温度に対応する飽和圧力程度となるようにその開度を調
節する。The stop valve 6 is configured to open so that when the electromagnetic valve 7 is opened and air is drawn into the drying tank 1, the pressure inside the drying tank 1 becomes approximately the saturation pressure corresponding to the temperature of the material to be dried. Adjust.
例えば、被乾燥物温度２５℃、乾燥槽内の設定圧力をｌ
−Ｈｇとしたとき、電磁弁７を開いて乾燥槽１内に吸気
したとき３ＤｒｍｎＨｇ程度まで真空破壊されるように
ストップバイブロの開度を調節する。For example, the temperature of the material to be dried is 25℃, and the set pressure in the drying tank is l.
-Hg, the opening degree of the stop vibro is adjusted so that when the solenoid valve 7 is opened and air is sucked into the drying tank 1, the vacuum is broken to about 3 DrmnHg.
なお、５′は真空破壊口である。Note that 5' is a vacuum breaking port.
本考案の真空乾燥装置は、前記の如き構成よりなるので
、タイマー８により電磁弁７を周期的に開閉させると、
例えば前記の例の場合、乾燥槽１内の圧力が設定圧力Ａ
（１０ｍｍＨｇ）と真空破壊時の圧力Ｂ （３−Ｈｇ
）とが第２図に示すように交互にパルス状に変動する。Since the vacuum drying apparatus of the present invention has the above-described configuration, when the solenoid valve 7 is periodically opened and closed by the timer 8,
For example, in the case of the above example, the pressure inside the drying tank 1 is the set pressure A
(10mmHg) and pressure B at vacuum break (3-Hg
) alternately fluctuate in a pulse-like manner as shown in FIG.
このように、本考案においては、乾燥槽内が設定された
乾燥条件の圧力と被乾燥物の温度に対応する飽和圧力と
に交互に変化するので、それに従って蒸発温度も変化し
、ただ単に設定圧力を維持して乾燥させていた従来のも
のと比較すると、被乾燥物の表面と内部との温度差およ
び水分濃度差が小さくなり、これにより自然乾燥に近似
した良質の乾燥を行なうことができる。In this way, in the present invention, since the pressure inside the drying tank alternately changes between the pressure of the set drying conditions and the saturation pressure corresponding to the temperature of the material to be dried, the evaporation temperature also changes accordingly, and can be simply set. Compared to conventional methods that dry by maintaining pressure, the difference in temperature and moisture concentration between the surface and inside of the object to be dried is smaller, making it possible to perform high-quality drying that is similar to natural drying. .
また、本考案によれば、乾燥槽内に外気の流れができる
ため、真空乾燥法に熱風乾燥法の要素力劾ｏわり、これ
により乾燥速度を向上させることができる。Further, according to the present invention, since the outside air can flow inside the drying tank, the effectiveness of the hot air drying method is greater than that of the vacuum drying method, thereby making it possible to improve the drying speed.
第１図は本考案真空乾燥装置の概略を示す系統図、第２
図は乾燥槽内の圧力状態を示す線図である。
１・・・・・・乾燥槽、２・・・・・・乾燥棚、３・・
・・・・排気管、４・・・・・・真空ポンプ、５・・・
・・・吸気管、６・・・・・・ストップ弁、７・・・・
・・電磁弁、訃・・・・・タイマ。Figure 1 is a system diagram showing the outline of the vacuum drying apparatus of the present invention, Figure 2
The figure is a diagram showing the pressure state inside the drying tank. 1...Drying tank, 2...Drying shelf, 3...
...Exhaust pipe, 4...Vacuum pump, 5...
...Intake pipe, 6...Stop valve, 7...
...Solenoid valve, ...Timer.
Claims (1)
定した圧力状態から周期的に乾燥室内に吸気して真空破
壊を行なう手段を具備せしめ、かつ該真空破壊時の圧力
を、被乾燥物の温度に対応する飽和圧力程度に制御する
ことを特徴とする食品などの真空乾燥装置。A medium vacuum drying apparatus for food products, etc. is equipped with a means to break the vacuum by periodically drawing air into the drying chamber from a preset pressure state, and the pressure at the time of vacuum break is determined by the temperature of the material to be dried. A vacuum drying device for foods, etc., which is characterized by controlling the saturation pressure to about the same level as the saturation pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3730080U JPS6026635Y2 (en) | 1980-03-24 | 1980-03-24 | Vacuum drying equipment for foods, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3730080U JPS6026635Y2 (en) | 1980-03-24 | 1980-03-24 | Vacuum drying equipment for foods, etc. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56138585U JPS56138585U (en) | 1981-10-20 |
| JPS6026635Y2 true JPS6026635Y2 (en) | 1985-08-10 |
Family
ID=29632868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3730080U Expired JPS6026635Y2 (en) | 1980-03-24 | 1980-03-24 | Vacuum drying equipment for foods, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6026635Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10518557B2 (en) | 2017-03-08 | 2019-12-31 | Seiko Epson Corporation | Drying apparatus, recording apparatus, and drying method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5415968B2 (en) * | 2010-01-12 | 2014-02-12 | 有限会社コウムラテクノ | Method and apparatus for drying food material vulnerable to heat denaturation |
-
1980
- 1980-03-24 JP JP3730080U patent/JPS6026635Y2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10518557B2 (en) | 2017-03-08 | 2019-12-31 | Seiko Epson Corporation | Drying apparatus, recording apparatus, and drying method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56138585U (en) | 1981-10-20 |
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