JP3537206B2 - Steam heating device - Google Patents
Steam heating deviceInfo
- Publication number
- JP3537206B2 JP3537206B2 JP02105995A JP2105995A JP3537206B2 JP 3537206 B2 JP3537206 B2 JP 3537206B2 JP 02105995 A JP02105995 A JP 02105995A JP 2105995 A JP2105995 A JP 2105995A JP 3537206 B2 JP3537206 B2 JP 3537206B2
- Authority
- JP
- Japan
- Prior art keywords
- heating
- steam
- section
- medium
- falling
- 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
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は被加熱物を蒸気で加熱す
るものに関し、特にその加熱温度が１００度Ｃ前後の比
較的低温の場合に適した蒸気加熱装置に関する。具体的
には重合反応等に用いられる各種反応釜や食品の蒸溜装
置、濃縮装置、あるいは殺菌装置等の蒸気加熱に用いる
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for heating an object to be heated with steam, and more particularly to a steam heating apparatus suitable for a case where the heating temperature is relatively low, around 100.degree. Specifically, it is used for steam heating of various reaction vessels used for a polymerization reaction or the like, a food distilling apparatus, a concentrating apparatus, or a sterilizing apparatus.
【０００２】[0002]
【従来の技術】従来の蒸気加熱装置としては例えば特開
平３−２４１２０２号公報に示されているようなものが
用いられていた。これは、減圧弁と加熱容器とエゼクタ
―式真空ポンプを順次配置し、エゼクタ―式真空ポンプ
を復水排出装置としてエゼクタ―とタンクと渦巻きポン
プで構成したもので、減圧弁で所定値まで減圧した低圧
蒸気を加熱容器に供給し、エゼクタ―式真空ポンプを駆
動して加熱容器内を所望の真空度に維持すると共に、加
熱容器内で被加熱物を加熱して生じた復水を吸引するこ
とにより、被加熱物を１００度Ｃ以下もしくは１００度
Ｃ程度の真空蒸気すなわち大気圧以下の減圧蒸気で加熱
することができるものである。2. Description of the Related Art As a conventional steam heating device, for example, a device as disclosed in Japanese Patent Application Laid-Open No. 3-241202 has been used. This is a system in which a pressure reducing valve, a heating vessel, and an ejector-type vacuum pump are sequentially arranged, and the ejector-type vacuum pump is composed of an ejector, a tank, and a spiral pump as a condensate discharge device. The heated low-pressure steam is supplied to the heating vessel, and the ejector-type vacuum pump is driven to maintain the inside of the heating vessel at a desired degree of vacuum, and the condensate generated by heating the object to be heated in the heating vessel is sucked. Thus, the object to be heated can be heated with a vacuum steam of 100 ° C. or less, or about 100 ° C., that is, a reduced pressure steam of an atmospheric pressure or less.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の蒸気加熱装
置では、真空吸引手段としてエゼクタ―式真空ポンプを
用いているために、エゼクタ―とタンクと渦巻きポンプ
が最低限必要となり、装置が高価なものとなってしまう
問題があった。また、渦巻きポンプを連続的に駆動して
流体をエゼクタ―に供給しなければならず、ポンプの運
転費用も少なからずかかってしまい維持費用が嵩む問題
があった。In the above-mentioned conventional steam heating apparatus, since an ejector-type vacuum pump is used as a vacuum suction means, an ejector, a tank and a vortex pump are required at a minimum, and the apparatus is expensive. There was a problem that became a thing. In addition, it is necessary to continuously drive the centrifugal pump to supply the fluid to the ejector, so that the operation cost of the pump is not small and the maintenance cost is increased.
【０００４】従って本発明の技術的課題は、装置そのも
のが簡単で安価であり、また、維持費用の少ない蒸気加
熱装置を得ることである。Accordingly, it is an object of the present invention to provide a steam heating apparatus which is simple and inexpensive and has low maintenance costs.
【０００５】[0005]
【課題を解決するための手段】上記の技術的課題を解決
するために講じた本発明の技術的手段は、加熱部に大気
圧以下の減圧蒸気を供給して蒸気加熱するものにおい
て、加熱部に所望の長さを有する立下がり部を形成し、
当該立下がり部の下端を蒸発媒体溜部と連通して、当該
蒸発媒体溜部に蒸発媒体加熱手段を設けると共に、上記
立下がり部の所望長さを、加熱部が必要とする真空度に
応じた長さ、すなわち、立下がり部が蒸発媒体溜部内の
媒体を吸い上げて加熱部の真空度に釣り合った水頭高さ
を生じることのできる長さ、としたことを特徴とするも
のである。Means for Solving the Problems The technical means of the present invention taken to solve the above technical problem is to provide a heating unit which supplies steam under reduced pressure below the atmospheric pressure to heat the steam. To form a falling portion having a desired length,
The lower end of the falling portion communicates with the evaporating medium reservoir, and evaporating medium heating means is provided in the evaporating medium reservoir, and the desired length of the falling portion is set according to the degree of vacuum required by the heating unit. In other words, the length is such that the falling portion can suck up the medium in the evaporating medium reservoir and generate a head height that is proportional to the degree of vacuum of the heating unit.
【０００６】[0006]
【作用】上記の技術的手段の作用は下記の通りである。
蒸発媒体溜部に蒸発媒体加熱手段を設けたことにより、
この加熱手段で蒸発媒体を加熱して加熱用の蒸気を発生
することができ、立下がり部を介して加熱部に蒸気を供
給することができる。加熱部へ供給された蒸気は加熱部
と被加熱物の一部を加熱して凝縮することにより、加熱
部の圧力は低下して大気圧以下となり、蒸発媒体溜部か
ら立下がり部を介して蒸発媒体を吸い上げる。吸い上げ
の距離は加熱部で生じる真空度に応じたものとなる。更
に蒸発媒体加熱手段で蒸発媒体を加熱して加熱用蒸気を
供給することにより、加熱部は大気圧以下の真空蒸気で
加熱される。加熱部を加熱して生じた凝縮媒体は立下が
り部を経て凝縮媒体溜部に戻る。The operation of the above technical means is as follows.
By providing the evaporation medium heating means in the evaporation medium reservoir,
This heating means can heat the evaporation medium to generate steam for heating, and supply the steam to the heating section via the falling section. The steam supplied to the heating unit heats and condenses the heating unit and a part of the object to be heated, so that the pressure of the heating unit is reduced to the atmospheric pressure or less, and from the evaporation medium storage unit through the falling unit Suction up the evaporation medium. The distance of the suction depends on the degree of vacuum generated in the heating section. Further, by heating the evaporation medium by the evaporation medium heating means and supplying the heating steam, the heating unit is heated by the vacuum steam at or below the atmospheric pressure. The condensed medium generated by heating the heating unit returns to the condensed medium reservoir through the falling part.
【０００７】[0007]
【実施例】上記の技術的手段の具体例を示す実施例を説
明する。加熱装置としての反応釜１の加熱部すなわちジ
ャケット部２の下部に所定長さの立下がり部３，４を設
ける。立下がり部３，４の下端は蒸発媒体溜部５と連通
すると共に、立下がり部３，４を連通管６，７により連
通して蒸発媒体溜部５の底部に開口する。蒸発媒体溜部
５には蒸発媒体を溜め置く。蒸発媒体としては通常水を
用いることができるが、その他条件に応じてアルコ―ル
等を混入した液体を用いることもできる。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments showing specific examples of the above technical means will be described. Falling portions 3 and 4 having a predetermined length are provided at a lower portion of a heating portion of the reaction vessel 1 as a heating device, that is, a lower portion of the jacket portion 2. The lower ends of the falling portions 3 and 4 communicate with the evaporation medium reservoir 5, and the falling portions 3 and 4 communicate with the communication pipes 6 and 7, and open to the bottom of the evaporation medium reservoir 5. The evaporation medium is stored in the evaporation medium storage 5. Usually, water can be used as the evaporation medium, but a liquid mixed with alcohol or the like may be used according to other conditions.
【０００８】蒸発媒体溜部５内に蒸発媒体加熱手段８を
配置する。蒸発媒体加熱手段８は入口側部に調節弁９を
介して蒸気供給管１０を接続し、蒸発媒体溜部５内をコ
イル状に通過する管で形成すると共に、出口側部に蒸気
が凝縮した復水を排出するためのスチ―ムトラップ１１
を取り付ける。調節弁９には反応釜１内に取り付けた温
度センサ―１２と温度コントロ―ラ―１３を接続して、
反応釜１内の被加熱物の温度に応じて蒸気の供給量を制
御することができるようにする。[0008] An evaporating medium heating means 8 is arranged in the evaporating medium reservoir 5. The evaporating medium heating means 8 is connected to a steam supply pipe 10 via an adjustment valve 9 on the inlet side, and is formed of a pipe that passes through the evaporating medium reservoir 5 in a coil shape, and vapor condenses on the outlet side. Steam trap 11 for discharging condensate
Attach. A temperature sensor 12 and a temperature controller 13 mounted in the reaction vessel 1 are connected to the control valve 9,
The supply amount of steam can be controlled in accordance with the temperature of the object to be heated in the reactor 1.
【０００９】ジャケット部２の上部に弁１５を介して大
気開放管１６を接続すると共に、蒸発媒体溜部５の上部
には蒸発媒体補給管１７を接続する。立下がり部３，４
の長さはジャケット部２で必要とする真空度に応じた長
さを有すれば良いが、通常１０メ―トル程度の長さとす
るのが望ましい。An atmosphere opening pipe 16 is connected to an upper portion of the jacket 2 via a valve 15, and an evaporation medium supply pipe 17 is connected to an upper portion of the evaporation medium reservoir 5. Falling part 3, 4
May have a length corresponding to the degree of vacuum required in the jacket portion 2, but it is usually desirable to have a length of about 10 meters.
【００１０】次に作用を説明する。反応釜１の内部で図
示しない被加熱物を加熱する前にジャケット部２内の残
存空気を除去しておく必要がある場合は、まず弁１５を
開弁状態として、蒸気供給管１０から蒸気を供給し蒸発
媒体を加熱して蒸気を発生させ、立下がり部３，４を経
てジャケット部２へ蒸気を供給することにより、残存空
気を弁１５から除去する。加熱の前に残存空気の除去が
必要でない場合は上記操作は必要ない。Next, the operation will be described. When it is necessary to remove the residual air in the jacket portion 2 before heating a not-shown object to be heated in the reactor 1, the valve 15 is first opened, and steam is supplied from the steam supply pipe 10. The remaining air is removed from the valve 15 by supplying and heating the evaporation medium to generate steam and supplying the steam to the jacket portion 2 via the falling portions 3 and 4. If the removal of residual air is not necessary before heating, the above operation is not necessary.
【００１１】立下がり部３，４からジャケット部２へ一
旦供給された蒸気は、ジャケット部２内で伝熱により凝
縮して凝縮液体となり、その容積が急激に小さくなるた
めにジャケット部２内は大気圧以下の真空状態となる。
ジャケット部２内が真空状態となると共に立下がり部
３，４は蒸発媒体溜部５内の媒体を吸い上げて真空度に
釣り合った水頭高さを生じる。所定の真空度となったジ
ャケット部２へ再度立下がり部３，４を経て加熱用の蒸
気を供給することにより、反応釜１は所定の真空蒸気、
すなわち１００度Ｃ以下の温度の蒸気、で加熱される。The steam once supplied to the jacket portion 2 from the falling portions 3 and 4 is condensed by heat transfer in the jacket portion 2 to become a condensed liquid, and the volume of the steam decreases rapidly. It becomes a vacuum state below atmospheric pressure.
While the inside of the jacket portion 2 is in a vacuum state, the falling portions 3 and 4 suck up the medium in the evaporating medium storage portion 5 to generate a water head height commensurate with the degree of vacuum. By supplying steam for heating to the jacket portion 2 having a predetermined degree of vacuum again through the falling portions 3 and 4, the reaction vessel 1 is provided with the predetermined vacuum steam,
That is, it is heated with steam at a temperature of 100 ° C. or less.
【００１２】反応釜１を加熱して生じた凝縮液体はジャ
ケット部２から立下がり部３，４を経て蒸発媒体溜部５
へ戻り循環する。The condensed liquid generated by heating the reaction vessel 1 flows from the jacket portion 2 through the falling portions 3 and 4 to the evaporating medium storage portion 5.
Return to and circulate.
【００１３】[0013]
【発明の効果】上記のように本発明によれば、蒸発媒体
溜部と立下がり部とで加熱部の真空度を維持することが
でき、エゼクタ―式真空ポンプのようにエゼクタ―やタ
ンクや渦巻きポンプ等が不要で装置そのものを安価なも
のとすることができ、且つ、渦巻きポンプの運転費用も
不要となり装置の維持費用をほとんどを無くすことがで
きる。As described above, according to the present invention, the degree of vacuum in the heating section can be maintained between the evaporating medium storage section and the falling section, and the ejector, the tank, and the like can be maintained like an ejector type vacuum pump. A centrifugal pump or the like is not required, and the apparatus itself can be made inexpensive. In addition, the operating cost of the centrifugal pump is not required, and the maintenance cost of the apparatus can be almost eliminated.
【図１】本発明の蒸気加熱装置の実施例の構成図であ
る。FIG. 1 is a configuration diagram of an embodiment of a steam heating device of the present invention.
１ 反応釜 ２ ジャケット部 ３，４ 立下がり部 ５ 蒸発媒体溜部 ６，７ 連通管 ８ 蒸発媒体加熱手段 １０ 蒸気供給管 １６ 大気開放管 1 reactor 2 Jacket part 3, 4 Falling part 5 Evaporation medium reservoir 6,7 communication pipe 8 Evaporation medium heating means 10 Steam supply pipe 16 atmosphere open pipe
Claims (1)
て蒸気加熱するものにおいて、加熱部に所望の長さを有
する立下がり部を形成し、当該立下がり部の下端を蒸発
媒体溜部と連通して、当該蒸発媒体溜部に蒸発媒体加熱
手段を設けると共に、上記立下がり部の所望長さを、加
熱部が必要とする真空度に応じた長さ、すなわち、立下
がり部が蒸発媒体溜部内の媒体を吸い上げて加熱部の真
空度に釣り合った水頭高さを生じることのできる長さ、
としたことを特徴とする蒸気加熱装置。1. A heater for heating a steam by supplying reduced-pressure steam at a pressure lower than the atmospheric pressure to a heating section, wherein a falling section having a desired length is formed in the heating section, and a lower end of the falling section is provided with an evaporation medium reservoir. In addition to providing the evaporating medium heating means in the evaporating medium storage section in communication with the section, the desired length of the falling section, the length according to the degree of vacuum required by the heating section, that is, the falling section A length that can suck up the medium in the evaporation medium reservoir and produce a head height that is proportional to the degree of vacuum in the heating unit,
A steam heating device, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02105995A JP3537206B2 (en) | 1995-01-13 | 1995-01-13 | Steam heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02105995A JP3537206B2 (en) | 1995-01-13 | 1995-01-13 | Steam heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08192042A JPH08192042A (en) | 1996-07-30 |
| JP3537206B2 true JP3537206B2 (en) | 2004-06-14 |
Family
ID=12044337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02105995A Expired - Fee Related JP3537206B2 (en) | 1995-01-13 | 1995-01-13 | Steam heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3537206B2 (en) |
-
1995
- 1995-01-13 JP JP02105995A patent/JP3537206B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08192042A (en) | 1996-07-30 |
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