JP2010284621A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- JP2010284621A JP2010284621A JP2009142397A JP2009142397A JP2010284621A JP 2010284621 A JP2010284621 A JP 2010284621A JP 2009142397 A JP2009142397 A JP 2009142397A JP 2009142397 A JP2009142397 A JP 2009142397A JP 2010284621 A JP2010284621 A JP 2010284621A
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- liquid level
- steam
- liquid
- outlet side
- steam trap
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- 239000007788 liquid Substances 0.000 claims abstract description 59
- 238000001514 detection method Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000007423 decrease Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Abstract
Description
本発明は、弁を介して供給される加熱用の蒸気で被加熱物を加熱する熱交換器に関する。 The present invention relates to a heat exchanger that heats an object to be heated with heating steam supplied via a valve.
従来の熱交換器は、蒸気を熱源として空気を加熱するフィンチューブ型熱交換器として、熱交換器の出口ヘッダ内が真空になると、直ちに出口ヘッダ内に外気を注入することにより、熱交換器内で発生する蒸気の凝縮水としての復水がスチームトラップを介して速やかに器外へ排出されるようにして、復水が熱交換器内に滞留することを防止することができるものである。 A conventional heat exchanger is a finned tube type heat exchanger that heats air using steam as a heat source. When the inside of the outlet header of the heat exchanger becomes a vacuum, it immediately injects outside air into the outlet header. It is possible to prevent condensate from staying in the heat exchanger by allowing condensate as condensate of steam generated in the inside to be quickly discharged out of the vessel via the steam trap. .
上記従来の熱交換器では、出口ヘッダ内に外気を注入しても、その圧力は大気圧以上に上昇させることができず、また、スチームトラップの出口側の圧力も大気圧であり、このスチームトラップの入口側と出口側の圧力差をほとんど確保することができず、スチームトラップから復水を確実に排出することができない問題があった。スチームトラップは、入口側と出口側に所定の圧力差が作用しないと、復水を出口側に速やかに排出することができないのである。 In the conventional heat exchanger described above, even when outside air is injected into the outlet header, the pressure cannot be increased above the atmospheric pressure, and the pressure on the outlet side of the steam trap is also atmospheric pressure. There was a problem that the pressure difference between the inlet side and the outlet side of the trap could hardly be secured, and the condensate could not be discharged reliably from the steam trap. The steam trap cannot quickly discharge condensate to the outlet side unless a predetermined pressure difference acts on the inlet side and the outlet side.
解決しようとする問題点は、スチームトラップの入口側と出口側に所定の圧力差を確保できるようにして、熱交換器で発生した復水をスチームトラップを介して確実に器外へ排出することである。 The problem to be solved is to ensure that a predetermined pressure difference is secured between the inlet side and the outlet side of the steam trap, and to reliably discharge the condensate generated in the heat exchanger to the outside through the steam trap. It is.
本発明は、熱交換容器へ弁を介して加熱用の蒸気を供給することにより、熱交換容器の被熱交換物を蒸気で加熱し、加熱によって蒸気の凝縮した復水を外部へ排出するスチームトラップを取り付けたものにおいて、熱交換容器に液位検出部材を接続して、当該液位検出部材の出口側に、液位検出部材の検出液位に応じて開閉弁する弁部材と液体エゼクタを連通し、当該液体エゼクタの吸込室をスチームトラップの出口側と接続したものである。 The present invention provides steam that heats a heat exchange object in a heat exchange container with steam by supplying steam to the heat exchange container through a valve, and discharges condensate condensed with the heat to the outside. In a device equipped with a trap, a liquid level detection member is connected to the heat exchange container, and a valve member and a liquid ejector that open and close according to the detection liquid level of the liquid level detection member are provided on the outlet side of the liquid level detection member. In communication, the suction chamber of the liquid ejector is connected to the outlet side of the steam trap.
本発明は、液位検出部材の出口側に液体エゼクタを連通して、この液体エゼクタの吸込室をスチームトラップの出口側と接続したことにより、液体エゼクタで発生する吸引力でもって、スチームトラップの出口側を大気圧以下の減圧状態とすることができ、スチームトラップの入口側と出口側の圧力差を充分に確保して、熱交換器で発生した復水を確実に外部へ排出することができるという利点がある。 In the present invention, a liquid ejector is communicated with the outlet side of the liquid level detecting member, and the suction chamber of the liquid ejector is connected to the outlet side of the steam trap by the suction of the steam trap. The outlet side can be depressurized below atmospheric pressure, ensuring a sufficient pressure difference between the inlet side and the outlet side of the steam trap to reliably discharge the condensate generated in the heat exchanger. There is an advantage that you can.
本発明は、熱交換容器に液位検出部材を接続するものであるが、液位検出部材は、熱交換容器内の復水の液位を検出することのできるものを使用することができる。 In the present invention, the liquid level detection member is connected to the heat exchange container, and the liquid level detection member may be one that can detect the liquid level of the condensate in the heat exchange container.
図1において、熱交換容器としての反応釜1のジャケット部2に接続した蒸気供給管3と、ジャケット部2の下方に連通したスチームトラップ4と、ジャケット部2の側方に配置した液位検出部材5、及び、液位検出部材5の下方に連通した弁部材13と液体エゼクタ6とで熱交換器を構成する。 In FIG. 1, a steam supply pipe 3 connected to a jacket portion 2 of a reaction vessel 1 as a heat exchange vessel, a steam trap 4 communicating below the jacket portion 2, and a liquid level detection arranged on the side of the jacket portion 2 The member 5 and the valve member 13 and the liquid ejector 6 communicating below the liquid level detecting member 5 constitute a heat exchanger.
蒸気供給管3には、ジャケット部2へ供給する蒸気の量を制御するための制御弁7を取り付ける。蒸気供給管3からジャケット部2へ供給された加熱用の蒸気によって、反応釜1内の被加熱物を加熱するものである。 A control valve 7 for controlling the amount of steam supplied to the jacket portion 2 is attached to the steam supply pipe 3. The object to be heated in the reaction kettle 1 is heated by the heating steam supplied from the steam supply pipe 3 to the jacket portion 2.
ジャケット部2の下端から管路8によりスチームトラップ4の入口側と接続する。スチームトラップ4の出口側は、管路9により液体エゼクタ6の吸込室10と接続する。 It connects with the inlet side of the steam trap 4 by the pipe line 8 from the lower end of the jacket part 2. FIG. The outlet side of the steam trap 4 is connected to the suction chamber 10 of the liquid ejector 6 by a conduit 9.
ジャケット部2の右側方に縦長円筒状の液位検出部材5を配置する。液位検出部材5は、ジャケット部2の下部と逆止弁12を介して接続する。この逆止弁12は、ジャケット部2から液位検出部材5側への流体の流下は許容するが、反対方向の流体の流下は阻止するものである。 A vertically long cylindrical liquid level detecting member 5 is disposed on the right side of the jacket portion 2. The liquid level detection member 5 is connected to the lower portion of the jacket portion 2 via a check valve 12. The check valve 12 allows the fluid to flow from the jacket portion 2 to the liquid level detecting member 5 side, but prevents the fluid from flowing in the opposite direction.
液位検出部材5の右側面に、所定の液位になると弁部材13を開閉弁する液位検出器11を取り付ける。液位検出器11は、図示はしないが弁部材13と電気接続する。 A liquid level detector 11 that opens and closes the valve member 13 when a predetermined liquid level is reached is attached to the right side surface of the liquid level detection member 5. Although not shown, the liquid level detector 11 is electrically connected to the valve member 13.
弁部材13の入口側に駆動液体管15を接続する。弁部材13の出口側は、液体エゼクタ6の吸込室10内の図示しないノズル部と接続する。液位検出部材5の液位が所定の高さになると、弁部材13が開弁して液体エゼクタ6へ駆動用の液体が圧送され、液体エゼクタ6の吸込室10で吸引力を発生するものである。 A driving liquid pipe 15 is connected to the inlet side of the valve member 13. The outlet side of the valve member 13 is connected to a nozzle portion (not shown) in the suction chamber 10 of the liquid ejector 6. When the liquid level of the liquid level detecting member 5 reaches a predetermined height, the valve member 13 is opened, the driving liquid is pumped to the liquid ejector 6, and a suction force is generated in the suction chamber 10 of the liquid ejector 6. It is.
反応釜1内に配置された図示しない被加熱物を加熱する場合は、蒸気供給管3と制御弁7からジャケット部2へ所定量の蒸気を供給することによって、被加熱物が蒸気によって加熱される。通常は、供給される蒸気の量が充分であり、ジャケット部2内は高圧状態を維持する。加熱により凝縮した復水は、ジャケット部2下端の管路8からスチームトラップ4を通り、更に、液体エゼクタ6の内部を通って外部へ排出される。この場合は、ジャケット部2が高圧状態であるために、発生した復水は圧力差により外部へ排出され、液体エゼクタ6は駆動していない。 When heating an object to be heated (not shown) arranged in the reaction kettle 1, the object to be heated is heated by the steam by supplying a predetermined amount of steam from the steam supply pipe 3 and the control valve 7 to the jacket portion 2. The Usually, the amount of steam to be supplied is sufficient, and the inside of the jacket portion 2 maintains a high pressure state. Condensate condensed by heating passes through the steam trap 4 from the pipe line 8 at the lower end of the jacket portion 2 and is further discharged to the outside through the inside of the liquid ejector 6. In this case, since the jacket portion 2 is in a high pressure state, the generated condensate is discharged to the outside due to the pressure difference, and the liquid ejector 6 is not driven.
制御弁7からジャケット部2へ供給される蒸気の量が減少して、ジャケット部2内の圧力も減少してくると、スチームトラップ4から排出される復水の量も減少して、更に、ジャケット部2内の圧力が大気圧程度あるいは大気圧以下の減圧状態になると、スチームトラップ4からは全く復水が排出されないために、図1に示すようにジャケット部2の下部に復水が滞留し、液位検出部材5の内部もジャケット部2と同じ液位となる。 When the amount of steam supplied from the control valve 7 to the jacket portion 2 decreases and the pressure in the jacket portion 2 also decreases, the amount of condensate discharged from the steam trap 4 also decreases. When the pressure in the jacket part 2 is reduced to about atmospheric pressure or below atmospheric pressure, no condensate is discharged from the steam trap 4, so condensate stays in the lower part of the jacket part 2 as shown in FIG. The liquid level detection member 5 also has the same liquid level as the jacket portion 2.
液位検出部材5の液位検出器11が、この高液位を検出すると、弁部材13が開弁して駆動液体を液体エゼクタ6へ圧送する。液体エゼクタ6に駆動液体が供給されると、吸込室10で吸引力を発生して、スチームトラップ4の出口側を大気圧以下で、且つ、ジャケット部2内よりも低圧状態に維持することによって、ジャケット部2内の復水がスチームトラップ4を通り液体エゼクタ6に吸引され、外部に排出される。 When the liquid level detector 11 of the liquid level detecting member 5 detects this high liquid level, the valve member 13 opens to pump the driving liquid to the liquid ejector 6. When driving liquid is supplied to the liquid ejector 6, a suction force is generated in the suction chamber 10, and the outlet side of the steam trap 4 is maintained at a pressure lower than atmospheric pressure and lower than that in the jacket portion 2. The condensate in the jacket portion 2 passes through the steam trap 4 and is sucked into the liquid ejector 6 and discharged to the outside.
蒸気を熱源として利用するさまざまな熱交換器からの復水排出装置として適用できる。 It can be applied as a condensate discharge device from various heat exchangers that use steam as a heat source.
1 反応釜
2 ジャケット部
3 蒸気供給管
4 スチームトラップ
5 液位検出部材
6 液体エゼクタ
7 制御弁
10 吸込室
11 液位検出器
12 逆止弁
13 弁部材
15 駆動用液体管
DESCRIPTION OF SYMBOLS 1 Reaction kettle 2 Jacket part 3 Steam supply pipe 4 Steam trap 5 Liquid level detection member 6 Liquid ejector 7 Control valve 10 Suction chamber 11 Liquid level detector 12 Check valve 13 Valve member 15 Liquid pipe for drive
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2009142397A JP5546803B2 (en) | 2009-06-15 | 2009-06-15 | Heat exchanger |
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JP2009142397A JP5546803B2 (en) | 2009-06-15 | 2009-06-15 | Heat exchanger |
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JP2010284621A true JP2010284621A (en) | 2010-12-24 |
JP5546803B2 JP5546803B2 (en) | 2014-07-09 |
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JP2009142397A Expired - Fee Related JP5546803B2 (en) | 2009-06-15 | 2009-06-15 | Heat exchanger |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105642214A (en) * | 2016-01-12 | 2016-06-08 | 杭州海虹精细化工有限公司 | Vertical bottom stirring reaction still and environment-friendly process for producing hexanedioic acid through still reaction |
JP2020046104A (en) * | 2018-09-18 | 2020-03-26 | 株式会社テイエルブイ | Drainage recovery system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08193703A (en) * | 1995-01-13 | 1996-07-30 | Tlv Co Ltd | Steam heating equipment |
JPH08285368A (en) * | 1995-04-18 | 1996-11-01 | Chiyoda Corp | Adjustor for heating amount of steam heater |
JP2003265947A (en) * | 2002-03-14 | 2003-09-24 | Tlv Co Ltd | Heat exchange apparatus |
-
2009
- 2009-06-15 JP JP2009142397A patent/JP5546803B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08193703A (en) * | 1995-01-13 | 1996-07-30 | Tlv Co Ltd | Steam heating equipment |
JPH08285368A (en) * | 1995-04-18 | 1996-11-01 | Chiyoda Corp | Adjustor for heating amount of steam heater |
JP2003265947A (en) * | 2002-03-14 | 2003-09-24 | Tlv Co Ltd | Heat exchange apparatus |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105642214A (en) * | 2016-01-12 | 2016-06-08 | 杭州海虹精细化工有限公司 | Vertical bottom stirring reaction still and environment-friendly process for producing hexanedioic acid through still reaction |
JP2020046104A (en) * | 2018-09-18 | 2020-03-26 | 株式会社テイエルブイ | Drainage recovery system |
JP7178842B2 (en) | 2018-09-18 | 2022-11-28 | 株式会社テイエルブイ | Drain recovery system |
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JP5546803B2 (en) | 2014-07-09 |
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