JP2001113182A - Steam heater - Google Patents
Steam heaterInfo
- Publication number
- JP2001113182A JP2001113182A JP29337899A JP29337899A JP2001113182A JP 2001113182 A JP2001113182 A JP 2001113182A JP 29337899 A JP29337899 A JP 29337899A JP 29337899 A JP29337899 A JP 29337899A JP 2001113182 A JP2001113182 A JP 2001113182A
- Authority
- JP
- Japan
- Prior art keywords
- steam
- heating
- temperature
- condensate
- ejector
- 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.)
- Granted
Links
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は熱交換器内に収容し
た被加熱物を加熱用の蒸気で加熱するものに関し、特に
その加熱温度が100度C前後程度の比較的低温の場合
に適した蒸気加熱装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for heating an object to be heated housed in a heat exchanger with steam for heating, and particularly suitable for a case where the heating temperature is relatively low, about 100.degree. It relates to a steam heating device.
【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9−250887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、反応釜1に加熱部としてのジ
ャケット部2を形成して加熱用の蒸気供給管3を接続
し、加熱により生じた復水を加熱部から排出する復水回
収装置16を接続すると共に、加熱部の入口側に蒸気供
給管3と連通した蒸気エゼクタ6を配置して当該蒸気エ
ゼクタ6の出口側をジャケット部2と接続し、蒸気エゼ
クタ6の吸引室7を復水回収装置16と接続したもので
あり、ジャケット部2に復水を滞留することがなく、1
00度C程度の比較的低温の蒸気によって被加熱物を加
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 apparatus, for example, an apparatus disclosed in Japanese Patent Application Laid-Open No. 9-250887 has been used. This involves forming a jacket 2 as a heating section in the reaction vessel 1, connecting a steam supply pipe 3 for heating, connecting a condensate recovery device 16 for discharging condensate generated by heating from the heating section, and The steam ejector 6 communicating with the steam supply pipe 3 is arranged on the inlet side of the heating unit, the outlet side of the steam ejector 6 is connected to the jacket 2, and the suction chamber 7 of the steam ejector 6 is connected to the condensate recovery device 16. The condensate does not stay in the jacket 2
The object to be heated can be heated by relatively low temperature steam of about 00C.
【0003】[0003]
【発明が解決しようとする課題】上記従来のものでは、
加熱部の温度が変動してしまい、被加熱物に加熱ムラを
生じてしまう問題があった。これは、復水回収装置が蒸
気エゼクタと連通している場合に、加熱部の温度状態や
被加熱物の温度に関わらず、蒸気エゼクタで発生するほ
ぼ一定の吸引量で復水回収装置を、更には連通した加熱
部を吸引するために、加熱部の蒸気温度が、加熱部や被
加熱物の温度変動に追随することができずに、加熱ムラ
を生じてしまうのである。SUMMARY OF THE INVENTION In the above prior art,
There has been a problem that the temperature of the heating unit fluctuates, causing uneven heating of the object to be heated. This is because when the condensate recovery device is in communication with the steam ejector, the condensate recovery device is operated at a substantially constant suction amount generated by the steam ejector, regardless of the temperature state of the heating section and the temperature of the object to be heated. Further, since the communicating heating section is sucked, the steam temperature of the heating section cannot follow the temperature fluctuation of the heating section and the object to be heated, and thus uneven heating occurs.
【0004】従って本発明の課題は、蒸気エゼクタへの
吸引量を適宜コントロールすることにより、加熱部の温
度変動を防止して、被加熱物に加熱ムラを生じることの
ない蒸気加熱装置を得ることである。[0004] Accordingly, an object of the present invention is to provide a steam heating apparatus which prevents temperature fluctuations of a heating section by appropriately controlling the amount of suction to a steam ejector and which does not cause uneven heating of an object to be heated. It is.
【0005】[0005]
【課題を解決するための手段】上記の課題を解決するた
めに講じた本発明の手段は、熱交換器に加熱部を形成し
て加熱用の蒸気供給管を接続し、当該蒸気供給管に蒸気
エゼクタを取り付けて、当該蒸気エゼクタの吸引室と、
加熱により生じた復水を加熱部から排出する復水回収装
置を、接続したものにおいて、蒸気エゼクタの吸引室と
復水回収装置との間に制御弁を配置し、加熱部若しくは
被加熱物の温度を検出する温度検出手段を取り付けて、
当該温度検出手段からの検出信号値に応じて上記制御弁
を開閉制御し、蒸気エゼクタへの吸引量をコントロール
するものである。The means of the present invention taken to solve the above-mentioned problems are to form a heating section in a heat exchanger, connect a heating steam supply pipe, and connect the heating steam supply pipe to the heating steam supply pipe. Attach a steam ejector, a suction chamber of the steam ejector,
When a condensate recovery unit that discharges condensate generated by heating from the heating unit is connected, a control valve is placed between the suction chamber of the steam ejector and the condensate recovery unit, Attach temperature detection means to detect temperature,
The control valve is controlled to open and close in accordance with a detection signal value from the temperature detecting means to control a suction amount to the steam ejector.
【0006】[0006]
【発明の実施の形態】加熱部又は被加熱物の検出温度値
に応じて、蒸気エゼクタの吸引室と連通する制御弁を開
閉制御することにより、復水回収装置から蒸気エゼクタ
への吸引量をコントロールすることができ、復水回収装
置及びこの復水回収装置と連通した加熱部を所定の圧力
状態即ち温度状態とすることができ、加熱部又は被加熱
物の温度変動に応動した温度制御によって被加熱物の加
熱温度ムラを防止することができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The amount of suction from a condensate recovery device to a steam ejector is controlled by opening and closing a control valve that communicates with a suction chamber of a steam ejector in accordance with a detected temperature value of a heating unit or an object to be heated. Can be controlled, and the condensate recovery device and the heating unit communicating with the condensate recovery device can be brought into a predetermined pressure state, that is, a temperature state, and by the temperature control in response to the temperature fluctuation of the heating unit or the heated object. It is possible to prevent uneven heating temperature of the object to be heated.
【0007】[0007]
【実施例】本実施例においては熱交換器として反応釜1
を用いた例を示す。反応釜1の外周に加熱部としてのジ
ャケット部2を形成して蒸気供給管3を接続する。蒸気
供給管3には、順次、開閉弁4と圧力調節弁5、及び、
蒸気エゼクタ6を接続する。蒸気エゼクタ6は内部にノ
ズルを有する吸引室7とディフューザ9で形成する。EXAMPLE In this example, a reactor 1 was used as a heat exchanger.
Here is an example using. A jacket section 2 as a heating section is formed on the outer periphery of the reaction vessel 1 and a steam supply pipe 3 is connected thereto. In the steam supply pipe 3, an on-off valve 4, a pressure control valve 5, and
The steam ejector 6 is connected. The steam ejector 6 is formed by a suction chamber 7 having a nozzle therein and a diffuser 9.
【0008】蒸気エゼクタ6の吸引室7と復水回収装置
16の間に制御弁10を設けて、ジャケット部2に取り
付けた温度検出手段としての温度センサ11と接続す
る。制御弁10は、蒸気エゼクタ6の吸引室7と復水回
収装置16の排気口21を連通する管路8に配置する。[0008] A control valve 10 is provided between the suction chamber 7 of the steam ejector 6 and the condensate recovery device 16, and is connected to a temperature sensor 11 as temperature detecting means attached to the jacket 2. The control valve 10 is disposed in a pipe 8 that connects the suction chamber 7 of the steam ejector 6 and the exhaust port 21 of the condensate recovery device 16.
【0009】ジャケット部2の下部に管路12を接続し
て、復水回収装置16の復水流入口15と接続する。管
路12にはジャケット部2から復水回収装置16側への
流体の通過のみを許容する逆止弁14を取り付ける。A conduit 12 is connected to a lower portion of the jacket portion 2 and connected to a condensate inlet 15 of a condensate recovery device 16. The pipe 12 is provided with a check valve 14 that allows only fluid to pass from the jacket 2 to the condensate recovery device 16.
【0010】復水回収装置16の復水流出口17には、
逆止弁18を介して復水回収管19を接続する。逆止弁
18は復水回収装置16から復水回収管19側のみへの
流体の通過を許容するものである。The condensate outlet 17 of the condensate recovery device 16
A condensate recovery pipe 19 is connected via a check valve 18. The check valve 18 allows the fluid to pass only from the condensate recovery device 16 to the condensate recovery pipe 19.
【0011】復水回収装置16の上部に、圧送流体流入
口20と圧送流体排気口21を設けて、圧送流体流入口
20を管路22を介して蒸気供給管3と接続する。A pumping fluid inlet 20 and a pumping fluid exhaust port 21 are provided above the condensate recovery device 16, and the pumping fluid inlet 20 is connected to the steam supply pipe 3 via a pipe 22.
【0012】復水回収装置16は従来技術のものと同一
であり、復水流入口15から流入してきた復水が内部に
溜りその水位が上昇すると図示しないフロートを上昇さ
せ、所定高さに達するとフロートがスナップ移動して、
圧送流体流入口20に取り付けた圧送弁を開弁すると共
に、排気口21に取り付けた排気弁を閉弁して、蒸気供
給管3から高圧の蒸気が復水回収装置16内部に供給さ
れて、溜まっていた復水を復水流出口17から復水回収
管19へ圧送するものである。The condensate recovery device 16 is the same as that of the prior art. When the condensate flowing in from the condensate inlet 15 accumulates therein and its water level rises, the float (not shown) is raised, and when the water reaches a predetermined height. The float snaps,
The pressure-feeding valve attached to the pressure-feeding fluid inlet 20 is opened, and the exhaust valve attached to the exhaust port 21 is closed, so that high-pressure steam is supplied from the steam supply pipe 3 into the condensate recovery device 16. The condensed condensate is pumped from the condensate outlet 17 to the condensate recovery pipe 19.
【0013】復水回収装置16内の復水が圧送されるに
連れて、図示しないフロートが降下して、所定の液位ま
で低下するとフロートは上記とは反対方向にスナップ移
動して、圧送流体流入口20の圧送弁を閉弁すると共
に、排気口21に取り付けた排気弁が開弁して、ジャケ
ット部2から復水が復水回収装置16内に流下してくる
ものである。As the condensate in the condensate recovery unit 16 is pumped, the float (not shown) descends and drops to a predetermined liquid level. The pressure feed valve of the inflow port 20 is closed, and the exhaust valve attached to the exhaust port 21 is opened, and condensate flows down from the jacket portion 2 into the condensate recovery device 16.
【0014】排気口21の排気弁が開弁した場合は、復
水回収装置16と蒸気エゼクタ6が連通され、蒸気エゼ
クタ6の吸引力により復水回収装置16内が所定の減圧
状態となるものである。When the exhaust valve of the exhaust port 21 is opened, the condensate recovery device 16 and the steam ejector 6 communicate with each other, and the inside of the condensate recovery device 16 is brought into a predetermined reduced pressure state by the suction force of the steam ejector 6. It is.
【0015】図1において、蒸気供給管3から反応釜1
のジャケット部2へ加熱用の蒸気を供給することによ
り、反応釜1内の図示しない被加熱物が加熱される。加
熱蒸気温度は圧力調節弁5によって蒸気圧力を調節する
ことにより、蒸気、正確には飽和蒸気、の圧力と温度は
1対1の関係があるために、任意に調節することができ
る。加熱により熱を奪われた蒸気は凝縮して復水とな
る。In FIG. 1, a reaction vessel 1 is connected to a steam supply pipe 3.
By supplying steam for heating to the jacket portion 2 of the above, an object to be heated (not shown) in the reaction vessel 1 is heated. The temperature and the temperature of the heated steam can be arbitrarily adjusted by adjusting the steam pressure by the pressure control valve 5 because the pressure and the temperature of the steam, more precisely, the saturated steam, have a one-to-one relationship. The steam deprived of heat by heating condenses and becomes condensed water.
【0016】復水は管路12と復水流入口15から復水
回収装置16内へ流入する。この場合、圧送流体流入口
20の圧送弁は閉弁しているが、排気口21の排気弁は
開弁しておりエゼクタ6の吸引室7と制御弁10を介し
て接続している。このエゼクタ6の吸引力により復水回
収装置16内を所定の減圧状態とすることによって、ジ
ャケット部2で発生した復水は管路12を介して滞留す
ることなく復水回収装置16内へ流下することができ
る。The condensate flows into the condensate recovery device 16 from the conduit 12 and the condensate inlet 15. In this case, the pumping valve at the pumping fluid inlet 20 is closed, but the exhaust valve at the exhaust port 21 is open and connected to the suction chamber 7 of the ejector 6 via the control valve 10. By setting the inside of the condensate recovery device 16 to a predetermined reduced pressure state by the suction force of the ejector 6, the condensate generated in the jacket portion 2 flows down into the condensate recovery device 16 without stagnation via the pipeline 12. can do.
【0017】本実施例においては、ジャケット部2に温
度センサ11を取り付けて、この検出温度値に応じて制
御弁10を開閉制御することによって、エゼクタ6への
吸引量を制御することができ、ジャケット部2の蒸気圧
力即ち加熱温度をより精度良く維持して、反応釜1内の
被加熱物を加熱ムラなく加熱することができる。In this embodiment, the temperature sensor 11 is attached to the jacket 2 and the control valve 10 is controlled to open and close according to the detected temperature value, whereby the amount of suction to the ejector 6 can be controlled. By maintaining the steam pressure of the jacket portion 2, that is, the heating temperature more accurately, the object to be heated in the reaction vessel 1 can be heated without heating unevenness.
【0018】本実施例においては、蒸気エゼクタ6の吸
引室7を復水回収装置16の排気口21と連通した例を
示したが、蒸気エゼクタ6の吸引室7と復水回収装置1
6との接続は、これに限られるものではなく、例えば復
水排出装置16に排気口21や流入口20とは別個の連
結口を設けて吸引室7と接続することもできるものであ
る。In this embodiment, an example is shown in which the suction chamber 7 of the steam ejector 6 is communicated with the exhaust port 21 of the condensate recovery device 16, but the suction chamber 7 of the steam ejector 6 is connected to the condensate recovery device 1.
The connection with the suction chamber 7 is not limited to this. For example, a connection port separate from the exhaust port 21 and the inflow port 20 may be provided in the condensate discharge device 16 and connected to the suction chamber 7.
【0019】[0019]
【発明の効果】上記のように本発明によれば、加熱部又
は被加熱物の検出温度値に応じて、蒸気エゼクタの吸引
量を適宜コントロールすることにより、加熱部の温度変
動を防止して、被加熱物に加熱ムラを生じることのない
蒸気加熱装置とすることができる。As described above, according to the present invention, the temperature fluctuation of the heating section can be prevented by appropriately controlling the suction amount of the steam ejector in accordance with the detected temperature value of the heating section or the object to be heated. In addition, it is possible to provide a steam heating device that does not cause uneven heating of an object to be heated.
【図1】本発明の蒸気加熱装置の実施例を示す構成図。FIG. 1 is a configuration diagram showing an embodiment of a steam heating device of the present invention.
1 反応釜 2 ジャケット部 3 蒸気供給管 6 蒸気エゼクタ 7 吸引室 10 制御弁 11 温度センサ 15 復水流入口 16 復水回収装置 17 復水流出口 20 圧送流体流入口 21 排気口 DESCRIPTION OF SYMBOLS 1 Reactor 2 Jacket part 3 Steam supply pipe 6 Steam ejector 7 Suction chamber 10 Control valve 11 Temperature sensor 15 Condensate inlet 16 Condensate recovery device 17 Condensate outlet 20 Pressure fluid inlet 21 Exhaust port
Claims (1)
気供給管を接続し、当該蒸気供給管に蒸気エゼクタを取
り付けて、当該蒸気エゼクタの吸引室と、加熱により生
じた復水を加熱部から排出する復水回収装置を、接続し
たものにおいて、蒸気エゼクタの吸引室と復水回収装置
との間に制御弁を配置し、加熱部若しくは被加熱物の温
度を検出する温度検出手段を取り付けて、当該温度検出
手段からの検出信号値に応じて上記制御弁を開閉制御
し、蒸気エゼクタへの吸引量をコントロールすることを
特徴とする蒸気加熱装置。1. A heating section is formed in a heat exchanger, a steam supply pipe for heating is connected, a steam ejector is attached to the steam supply pipe, and a suction chamber of the steam ejector and condensate generated by heating are provided. Temperature detection that detects the temperature of the heating unit or the heated object by installing a control valve between the suction chamber of the steam ejector and the condensate recovery device in a connected condensate recovery device that discharges water from the heating unit A steam heating device, comprising: attaching means, controlling opening and closing of the control valve according to a detection signal value from the temperature detecting means, and controlling an amount of suction to a steam ejector.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29337899A JP4540771B2 (en) | 1999-10-15 | 1999-10-15 | Steam heating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29337899A JP4540771B2 (en) | 1999-10-15 | 1999-10-15 | Steam heating device |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2001113182A true JP2001113182A (en) | 2001-04-24 |
JP4540771B2 JP4540771B2 (en) | 2010-09-08 |
Family
ID=17794010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP29337899A Expired - Fee Related JP4540771B2 (en) | 1999-10-15 | 1999-10-15 | Steam heating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4540771B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007218472A (en) * | 2006-02-15 | 2007-08-30 | Tlv Co Ltd | Waste heat-recovering/pressure-reducing device for steam |
JP2007332861A (en) * | 2006-06-15 | 2007-12-27 | Tlv Co Ltd | Steam ejector |
JP2008150996A (en) * | 2006-12-15 | 2008-07-03 | Tlv Co Ltd | Steam ejector |
CN103316622A (en) * | 2013-07-04 | 2013-09-25 | 确成硅化学股份有限公司 | Reaction kettle and method for eliminating vibration of reaction kettle |
CN110170348A (en) * | 2019-05-26 | 2019-08-27 | 徐子昕 | It is a kind of for heating the low pressure cooker of microcentrifugal tube |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03101830A (en) * | 1989-09-14 | 1991-04-26 | Tlv Co Ltd | Steam heating and vaporization cooling device |
JPH04369302A (en) * | 1991-06-14 | 1992-12-22 | Tlv Co Ltd | Vacuum steam generating device |
JPH09250705A (en) * | 1996-03-15 | 1997-09-22 | Tlv Co Ltd | Pressure reduction steam generating device |
JPH09250887A (en) * | 1996-03-15 | 1997-09-22 | Tlv Co Ltd | Steam heating device |
-
1999
- 1999-10-15 JP JP29337899A patent/JP4540771B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03101830A (en) * | 1989-09-14 | 1991-04-26 | Tlv Co Ltd | Steam heating and vaporization cooling device |
JPH04369302A (en) * | 1991-06-14 | 1992-12-22 | Tlv Co Ltd | Vacuum steam generating device |
JPH09250705A (en) * | 1996-03-15 | 1997-09-22 | Tlv Co Ltd | Pressure reduction steam generating device |
JPH09250887A (en) * | 1996-03-15 | 1997-09-22 | Tlv Co Ltd | Steam heating device |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007218472A (en) * | 2006-02-15 | 2007-08-30 | Tlv Co Ltd | Waste heat-recovering/pressure-reducing device for steam |
JP2007332861A (en) * | 2006-06-15 | 2007-12-27 | Tlv Co Ltd | Steam ejector |
JP2008150996A (en) * | 2006-12-15 | 2008-07-03 | Tlv Co Ltd | Steam ejector |
CN103316622A (en) * | 2013-07-04 | 2013-09-25 | 确成硅化学股份有限公司 | Reaction kettle and method for eliminating vibration of reaction kettle |
CN103316622B (en) * | 2013-07-04 | 2016-03-09 | 确成硅化学股份有限公司 | Reactor, the method that reactor elimination is shaken |
CN110170348A (en) * | 2019-05-26 | 2019-08-27 | 徐子昕 | It is a kind of for heating the low pressure cooker of microcentrifugal tube |
CN110170348B (en) * | 2019-05-26 | 2020-08-14 | 徐子昕 | A low-pressure cooker for heating microcentrifuge tube |
Also Published As
Publication number | Publication date |
---|---|
JP4540771B2 (en) | 2010-09-08 |
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