JPH0979513A - Low-pressure steam heater by heating medium - Google Patents
Low-pressure steam heater by heating mediumInfo
- Publication number
- JPH0979513A JPH0979513A JP26211195A JP26211195A JPH0979513A JP H0979513 A JPH0979513 A JP H0979513A JP 26211195 A JP26211195 A JP 26211195A JP 26211195 A JP26211195 A JP 26211195A JP H0979513 A JPH0979513 A JP H0979513A
- Authority
- JP
- Japan
- Prior art keywords
- steam
- heat medium
- ejector
- pressure
- vapor
- 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.)
- Pending
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- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、熱媒体の蒸気によって
被加熱物を加熱するものに関し、石油化学工業や合成繊
維工業、あるいは、合成樹脂工業等の各種加熱工程に使
用される熱媒体による蒸気加熱装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating medium for heating an object to be heated by steam of a heating medium, which is used in various heating processes in the petrochemical industry, the synthetic fiber industry, the synthetic resin industry and the like. The present invention relates to a steam heating device.
【０００２】[0002]
【従来技術】従来の熱媒体による蒸気加熱装置の例とし
ては、例えば図２に示すようなものが用いられていた。
これは、熱媒体の蒸発器としての熱媒体用ボイラ―１で
発生させた熱媒体蒸気を、熱交換器の一種である反応釜
２に供給して反応釜２内の被加熱物を加熱し、加熱によ
り凝縮した熱媒体蒸気の凝縮液をタンク３に流下させ、
循環ポンプ４でボイラ―１へ回収するものである。2. Description of the Related Art As an example of a conventional steam heating device using a heat medium, one shown in FIG. 2 has been used.
This is to heat the medium to be heated in the reaction vessel 2 by supplying the heat medium vapor generated in the heat medium boiler-1 as the evaporator of the heat medium to the reaction vessel 2 which is a kind of heat exchanger. , The condensate of the heat medium vapor condensed by heating is caused to flow down into the tank 3,
It is collected in the boiler 1 by the circulation pump 4.
【０００３】熱媒体は様々な種類のものが市販され用い
られているが、通常の水を沸騰させた水蒸気よりも、圧
力が低くて温度が高いものが一般的であり、加熱装置を
高耐圧力設計とすることなく、比較的高温で加熱するこ
とができるものであり、各種の加熱工程で多用されてい
る。Although various kinds of heat mediums are commercially available and used, those having a lower pressure and a higher temperature are generally used as compared with the steam generated by boiling normal water, and the heating device is highly resistant to heat. It can be heated at a relatively high temperature without pressure design, and is widely used in various heating processes.
【０００４】[0004]
【本発明が解決しようとする課題】上記従来の熱媒体に
よる蒸気加熱装置を用いた場合、加熱温度を速やかに変
更することができない問題があった。特に熱媒体蒸気の
加熱温度を低下させる場合に速やかに変更することがで
きなかった。これは、熱媒体蒸気の温度を変更するには
その蒸気圧力を変更しなければならないのであるが、蒸
発器やボイラ―での発生蒸気圧力や、あるいは各種弁に
よる調節では速やかに蒸気圧力を変更することができな
いためである。更に、加熱温度を低下させるためには蒸
気圧力を低下させる必要があるが、上記従来のもので
は、この蒸気圧力の低下は被加熱物に熱を奪われて加熱
蒸気が凝縮するのを待たなければならず、一層速やかに
加熱温度を変更することができないのである。When the conventional steam heating device using a heat medium is used, there is a problem that the heating temperature cannot be changed promptly. In particular, when the heating temperature of the heating medium vapor was lowered, it could not be changed promptly. This means that the steam pressure must be changed in order to change the temperature of the heat carrier steam, but the steam pressure generated in the evaporator or boiler or the steam pressure can be changed quickly by adjusting various valves. This is because it cannot be done. Further, in order to lower the heating temperature, it is necessary to lower the steam pressure, but in the above-mentioned conventional one, this decrease in steam pressure must wait until the object to be heated deprives the heat of condensation of the heated steam. Therefore, the heating temperature cannot be changed more quickly.
【０００５】従って本発明の技術的課題は、熱媒体の蒸
気加熱において、その蒸気加熱温度を速やかに変更する
ことのできる、熱媒体による低圧蒸気加熱装置を得るこ
とである。Therefore, a technical object of the present invention is to obtain a low-pressure steam heating device using a heat medium, which can rapidly change the steam heating temperature in heating the heat medium with steam.
【０００６】[0006]
【課題を解決する為の手段】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、熱交換器の一次
側に熱媒体の蒸気供給管を接続し、熱交換器で凝縮した
熱媒体を蒸発器等の回収先に回収するものにおいて、熱
媒体蒸気供給管にエゼクタ―と気液分離器と蒸気圧力調
節弁を順次介して熱交換器に接続し、熱交換器の二次側
に上記エゼクタ―の吸引室を接続すると共に、上記気液
分離器で分離された液体を溜め置くタンクを設け、当該
タンクを回収先に接続したものである。[Means for Solving the Problems] The technical means of the present invention taken to solve the above-mentioned technical problem is to connect a steam supply pipe of a heat medium to a primary side of a heat exchanger, When recovering the condensed heat medium to a recovery destination such as an evaporator, connect the heat medium vapor supply pipe to the heat exchanger through the ejector, the gas-liquid separator, and the vapor pressure control valve in order, and The suction chamber of the ejector is connected to the secondary side, a tank for storing the liquid separated by the gas-liquid separator is provided, and the tank is connected to the recovery destination.
【０００７】[0007]
【作用】蒸気供給管内の熱媒体蒸気は、エゼクタ―と気
液分離器と蒸気圧力調節弁を介して熱交換器に供給さ
れ、熱交換器内の被加熱物を加熱する。加熱して凝縮し
た熱媒体はエゼクタ―の吸引室に吸引され、熱媒体蒸気
と混合されて気液分離器に至り、分離された気体すなわ
ち熱媒体蒸気が熱交換器へ供給されると共に、分離され
た液体すなわち熱媒液体はタンクを経て回収先へ至る。The heat medium vapor in the vapor supply pipe is supplied to the heat exchanger through the ejector, the gas-liquid separator and the vapor pressure control valve to heat the object to be heated in the heat exchanger. The heat medium heated and condensed is sucked into the suction chamber of the ejector, mixed with the heat medium vapor and reaches the gas-liquid separator, and the separated gas, that is, the heat medium vapor is supplied to the heat exchanger and separated. The liquid, that is, the heat medium liquid, reaches the recovery destination through the tank.
【０００８】熱交換器の二次側にエゼクタ―の吸引室を
接続したことにより、熱媒体の蒸気加熱温度を変更する
場合には、エゼクタ―での吸引量を調節することによっ
て速やかに蒸気圧力を変更し、同時に蒸気温度も速やか
に変更することができる。エゼクタ―での吸引量を多く
することにより、より速やかに加熱蒸気圧力を低下させ
ることができ、同時に加熱蒸気温度も低下させることが
できる。一方、エゼクタ―での吸引量を少なくするかほ
とんど無くして、蒸気圧力の回復を計り、加熱蒸気温度
を上昇させることができる。When the suction chamber of the ejector is connected to the secondary side of the heat exchanger to change the steam heating temperature of the heat medium, the suction pressure in the ejector is adjusted to quickly increase the steam pressure. And the steam temperature can be changed quickly at the same time. By increasing the suction amount in the ejector, the heating steam pressure can be lowered more quickly, and at the same time, the heating steam temperature can be lowered. On the other hand, the steam pressure can be recovered and the heating steam temperature can be raised by reducing or almost eliminating the suction amount at the ejector.
【０００９】[0009]
【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。本実施例においては熱交換器として反応釜２を
用いた例を示し、図２の従来技術と同一部材には同一符
号を付す。図１において、蒸発器としての熱媒体用ボイ
ラ―１と反応釜２のジャケット部６を蒸気供給管５を介
して接続して、この蒸気供給管５にエゼクタ―７と気液
分離器８と蒸気圧力調節弁９を順次配置すると共に、ジ
ャケット部６の下部を管路１０を介してエゼクタ―７の
吸引室１１と接続して、熱媒体による低圧蒸気加熱装置
を構成する。EXAMPLES Examples showing specific examples of the above technical means will be described. In this embodiment, an example in which the reaction kettle 2 is used as a heat exchanger is shown, and the same members as those in the prior art shown in FIG. In FIG. 1, a heat medium boiler 1 as an evaporator and a jacket portion 6 of a reaction vessel 2 are connected via a steam supply pipe 5, and an ejector 7 and a gas-liquid separator 8 are connected to the steam supply pipe 5. The steam pressure control valve 9 is sequentially arranged, and the lower portion of the jacket portion 6 is connected to the suction chamber 11 of the ejector 7 through the pipe line 10 to form a low-pressure steam heating device using a heat medium.
【００１０】エゼクタ―７は吸引室１１の内部に図示は
していないがノズル部を有してディフュ―ザ部１２と連
設したもので、熱媒体用ボイラ―１との間に流量調節弁
１３を介して接続する。Although not shown, the ejector 7 has a nozzle portion, which is connected to the diffuser portion 12 inside the suction chamber 11. The ejector 7 is provided between the heat medium boiler 1 and the flow control valve. Connect via 13.
【００１１】気液分離器８は蒸気供給管５内の熱媒体の
蒸気と液体を分離し、分離した蒸気だけを反応釜２のジ
ャケット部６へ供給し、液体をその下部に設けたスチ―
ムトラップ１４からタンク３へ流下するものである。気
液分離器８としては、衝突式や遠心式やフィルタ―式等
のものを用いることができる。The gas-liquid separator 8 separates the vapor of the heat medium in the vapor supply pipe 5 from the liquid, supplies only the separated vapor to the jacket portion 6 of the reaction vessel 2, and the steam provided at the lower portion thereof
It flows down from the mutrap 14 to the tank 3. As the gas-liquid separator 8, a collision type, a centrifugal type, a filter type, or the like can be used.
【００１２】タンク３の下部に循環ポンプ４を接続し
て、タンク３に溜った熱媒体をボイラ―１へ供給する。
また、タンク３には熱媒体を補給するための熱媒体補給
管路１５を接続すると共に、タンク３上部に溜った非凝
縮ガスを排除するための排気管路１６を接続する。A circulation pump 4 is connected to the lower portion of the tank 3 to supply the heat medium accumulated in the tank 3 to the boiler 1.
The tank 3 is connected with a heat medium supply pipe 15 for supplying a heat medium and an exhaust pipe 16 for removing non-condensable gas accumulated in the upper portion of the tank 3.
【００１３】蒸気圧力調節弁９としては様々な弁を用い
ることができるが、所謂減圧弁や電気式又は空気式のコ
ントロ―ル弁等を用いることができる。ジャケット部６
の下部とエゼクタ―７の吸引室１１を接続する管路１０
にもその開度を調節することのできる弁１７を取り付け
る。Various valves can be used as the steam pressure control valve 9, but a so-called pressure reducing valve, an electric or pneumatic control valve, or the like can be used. Jacket 6
10 connecting the lower part of the pipe and the suction chamber 11 of the ejector 7
Also, a valve 17 whose opening can be adjusted is attached.
【００１４】次に作用を説明する。熱媒体用ボイラ―１
で発生した熱媒体蒸気は、流量調節弁１３とエゼクタ―
７と気液分離器８、及び、圧力調整弁９を経て圧力調整
されて反応釜２のジャケット部６に供給される。一方、
ジャケット部６内は、エゼクタ―７の吸引力により予め
所定の低圧状態となっており、ジャケット部６に供給さ
れた熱媒体蒸気は、所定の圧力すなわち蒸気温度となっ
て反応釜２内の被加熱物を加熱する。加熱して熱を奪わ
れた熱媒体蒸気は凝縮して液体となり、弁１７を経てエ
ゼクタ―７に吸引され、熱媒体蒸気と混合されて気液分
離器８に至る。Next, the operation will be described. Boiler for heat medium-1
The heat medium vapor generated in the flow control valve 13 and the ejector
The pressure is adjusted through 7 and the gas-liquid separator 8 and the pressure adjusting valve 9, and the pressure is supplied to the jacket 6 of the reaction vessel 2. on the other hand,
The inside of the jacket portion 6 is in a predetermined low pressure state due to the suction force of the ejector 7, and the heat carrier vapor supplied to the jacket portion 6 reaches a predetermined pressure, that is, the vapor temperature, so that the inside of the reaction vessel 2 is covered. Heat the heated material. The heat medium vapor that has been heated and deprived of heat condenses into a liquid, is sucked by the ejector 7 through the valve 17, is mixed with the heat medium vapor, and reaches the gas-liquid separator 8.
【００１５】気液分離器８に至った蒸気と液体の混合流
体は、それぞれ気体としての蒸気と液体とに分離され、
分離された熱媒体蒸気は圧力調節弁９を経て反応釜２の
ジャケット部６へ供給され、一方、分離された液体はス
チ―ムトラップ１４を経てタンク３に流下する。ここで
スチ―ムトラップ１４とは、液体だけを自動的に流下す
る機能を有した自動弁の一種である。タンク３に流下し
た液体熱媒体は循環ポンプ４によってボイラ―１へ供給
され、再度蒸発して蒸気となり蒸気供給管５に供給され
るサイクルを繰り返す。The mixed fluid of vapor and liquid that has reached the gas-liquid separator 8 is separated into vapor and liquid as gases,
The separated heat medium vapor is supplied to the jacket 6 of the reaction vessel 2 via the pressure control valve 9, while the separated liquid flows down to the tank 3 via the steam trap 14. Here, the steam trap 14 is a kind of automatic valve having a function of automatically flowing down only a liquid. The liquid heat medium flowing down to the tank 3 is supplied to the boiler 1 by the circulation pump 4, evaporated again to become vapor, and the cycle of being supplied to the vapor supply pipe 5 is repeated.
【００１６】エゼクタ―７で生じる吸引力は、エゼクタ
―７内を通過する蒸気量によって決まるために、流量調
節弁１３によって蒸気の通過量を適宜調節することによ
り、エゼクタ―７の吸引力すなわち減圧度合を制御する
ことができる。エゼクタ―７の吸引力を制御することに
より、ジャケット部６内の圧力状態を制御することがで
き、大気圧以下の負圧状態から、大気圧以上の正圧状態
までジャケット部６内の圧力を制御することができる。Since the suction force generated by the ejector 7 is determined by the amount of steam passing through the ejector 7, the suction force of the ejector 7, that is, the reduced pressure, is adjusted by appropriately adjusting the amount of steam passing by the flow rate control valve 13. The degree can be controlled. By controlling the suction force of the ejector 7, it is possible to control the pressure state inside the jacket portion 6, and the pressure inside the jacket portion 6 can be changed from a negative pressure state below atmospheric pressure to a positive pressure state above atmospheric pressure. Can be controlled.
【００１７】熱媒体として例えば商品名でダウサムなる
ものを用いた場合、蒸気圧力を絶対圧で０．３キロとす
るとその蒸気温度は約２１０度Ｃとなり、１．１キロと
すると約２６０度Ｃとすることができ、蒸気圧力を制御
することによって、蒸気温度を制御することができるの
である。For example, when a product called Dowsum under the trade name is used as the heat medium, the steam temperature becomes about 210 ° C when the steam pressure is 0.3 kg in absolute pressure, and about 260 ° C when it is 1.1 km. The steam temperature can be controlled by controlling the steam pressure.
【００１８】本実施例においては、熱交換器として反応
釜２を用いた例を示したが、その他の熱交換器、例えば
合成繊維や合成樹脂、あるいは、食料品や医療品等の熱
交換器としても用いることができるものである。In this embodiment, the reaction vessel 2 is used as the heat exchanger, but other heat exchangers such as synthetic fibers and synthetic resins, or heat exchangers for foods, medical products, etc. Can also be used as.
【００１９】[0019]
【発明の効果】上記のように本発明によれば、エゼクタ
―の吸引量を調節して、熱媒体の加熱蒸気圧力すなわち
加熱蒸気温度を速やかに変更することのできる、熱媒体
による低圧蒸気加熱装置を得ることができる。As described above, according to the present invention, the suction amount of the ejector can be adjusted to rapidly change the heating steam pressure of the heating medium, that is, the heating steam temperature. The device can be obtained.
【図１】本発明の熱媒体による低圧蒸気加熱装置の実施
例を示す構成図である。FIG. 1 is a configuration diagram showing an embodiment of a low-pressure steam heating device using a heat medium according to the present invention.
【図２】従来の熱媒体による蒸気加熱装置を示す構成図
である。FIG. 2 is a configuration diagram showing a conventional steam heating device using a heat medium.
１ 熱媒体用ボイラ― ２ 反応釜 ３ タンク ５ 蒸気供給管 ６ ジャケット部 ７ エゼクタ― ８ 気液分離器 ９ 蒸気圧力調節弁 １１ 吸引室 １３ 流量調節弁 １４ スチ―ムトラップ 1 Heater Boiler 2 Reactor 3 Tank 5 Steam Supply Pipe 6 Jacket 7 Ejector 8 Gas-Liquid Separator 9 Steam Pressure Control Valve 11 Suction Chamber 13 Flow Control Valve 14 Steam Trap
Claims (1)
を接続し、熱交換器で凝縮した熱媒体を蒸発器等の回収
先に回収するものにおいて、熱媒体蒸気供給管にエゼク
タ―と気液分離器と蒸気圧力調節弁を順次介して熱交換
器に接続し、熱交換器の二次側に上記エゼクタ―の吸引
室を接続すると共に、上記気液分離器で分離された液体
を溜め置くタンクを設け、当該タンクを回収先に接続し
たことを特徴とする熱媒体による低圧蒸気加熱装置。1. A heat medium steam supply pipe is connected to a primary side of a heat exchanger, and the heat medium condensed by the heat exchanger is recovered to a recovery destination such as an evaporator. -, The gas-liquid separator and the vapor pressure control valve are sequentially connected to the heat exchanger, the suction chamber of the ejector is connected to the secondary side of the heat exchanger, and the gas is separated by the gas-liquid separator. A low-pressure steam heating device using a heat medium, characterized in that a tank for storing liquid is provided and the tank is connected to a recovery destination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26211195A JPH0979513A (en) | 1995-09-14 | 1995-09-14 | Low-pressure steam heater by heating medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26211195A JPH0979513A (en) | 1995-09-14 | 1995-09-14 | Low-pressure steam heater by heating medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0979513A true JPH0979513A (en) | 1997-03-28 |
Family
ID=17371198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26211195A Pending JPH0979513A (en) | 1995-09-14 | 1995-09-14 | Low-pressure steam heater by heating medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0979513A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003080003A (en) * | 2001-09-13 | 2003-03-18 | Tlv Co Ltd | Device for crystallizing by low pressure steam |
| CN103145890A (en) * | 2004-12-22 | 2013-06-12 | 索维公司 | Method for drying wet polymer |
| CN103727523A (en) * | 2014-01-21 | 2014-04-16 | 山东鲁润热能科技有限公司 | Closed type condensate water recovery device |
-
1995
- 1995-09-14 JP JP26211195A patent/JPH0979513A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003080003A (en) * | 2001-09-13 | 2003-03-18 | Tlv Co Ltd | Device for crystallizing by low pressure steam |
| CN103145890A (en) * | 2004-12-22 | 2013-06-12 | 索维公司 | Method for drying wet polymer |
| CN103727523A (en) * | 2014-01-21 | 2014-04-16 | 山东鲁润热能科技有限公司 | Closed type condensate water recovery device |
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