JP2007303785A - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
JP2007303785A
JP2007303785A JP2006134940A JP2006134940A JP2007303785A JP 2007303785 A JP2007303785 A JP 2007303785A JP 2006134940 A JP2006134940 A JP 2006134940A JP 2006134940 A JP2006134940 A JP 2006134940A JP 2007303785 A JP2007303785 A JP 2007303785A
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Japan
Prior art keywords
heat exchange
drain
pipe
cooling fluid
steam
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Pending
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JP2006134940A
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Japanese (ja)
Inventor
Tetsuya Mita
哲也 見田
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TLV Co Ltd
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TLV Co Ltd
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Application filed by TLV Co Ltd filed Critical TLV Co Ltd
Priority to JP2006134940A priority Critical patent/JP2007303785A/en
Publication of JP2007303785A publication Critical patent/JP2007303785A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat exchanger capable of preventing smoke-like rising of re-evaporated steam from a discharge drain to prevent circumferential environment from being affected thereby. <P>SOLUTION: A coiled cooling fluid pipe 3 is disposed inside of a heat exchange container 1 connected with a steam supply pipe 2. The cooling fluid pipe 3 is connected with a cooling fluid supply pipe 7 at its lower end and connected with a hot water discharge pipe 8 at its upper end. A drain discharge portion 9 is formed at a lower end of the heat exchange case 1. A second heat exchange case 5 is connected with a lower end of the drain discharge portion 9. As the drain discharged from the drain discharge portion 9 further exchanges heat in the second heat exchange case 5 to be cooled, it is not re-evaporated, thereby its smoke-like rising is not found. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、各種蒸気使用装置で使用されて残った蒸気や、高温ドレンから発生した再蒸発蒸気などを、水などの冷却流体で熱交換して凝縮させることによって、モヤモヤと立ち込める蒸気を無くしたり、あるいは、冷却流体を熱交換して温度上昇した温水を別途使用して蒸気の保有熱を有効利用するものに関する。   The present invention eliminates the steam that can be trapped with moyamoya by condensing the remaining steam used in various steam-using devices and re-evaporated steam generated from high-temperature drain by heat exchange with a cooling fluid such as water. Alternatively, the present invention relates to an apparatus that effectively uses the retained heat of steam by separately using hot water whose temperature has been increased by exchanging heat with a cooling fluid.

従来の熱交換器は、熱交換容器に冷却流体を供給する冷却流体管にエゼクタを取り付けて、このエゼクタの吸引口を熱交換容器内の蒸気滞留箇所と連通したもので、エゼクタによって熱交換容器内の滞留蒸気を吸引することにより、熱交換容器内での蒸気の対流が促進され、熱伝達率を向上することができるものである。 In a conventional heat exchanger, an ejector is attached to a cooling fluid pipe for supplying a cooling fluid to the heat exchange container, and the suction port of the ejector is communicated with a vapor staying place in the heat exchange container. By sucking the staying steam inside, the convection of steam inside the heat exchange vessel is promoted, and the heat transfer coefficient can be improved.

上記従来の熱交換器では、熱交換容器で蒸気の凝縮したドレンを外部へ排出するドレン排出部から、比較的温度の高いドレンが排出されるために、その排出ドレンから再蒸発蒸気がモヤモヤと立ち昇ることによって周辺環境へ悪影響を及ぼす問題があった。
特開2004−53029号公報
In the conventional heat exchanger described above, since the drain having a relatively high temperature is discharged from the drain discharge portion for discharging the drain condensed steam in the heat exchange container to the outside, the re-evaporated steam is moyamoya from the discharged drain. There was a problem that had an adverse effect on the surrounding environment by rising.
JP 2004-53029 A

解決しようとする課題は、排出ドレンから再蒸発蒸気がモヤモヤと立ち昇ることを防止して、周辺環境へ悪影響を及ぼすことのない熱交換器を得ることである。   The problem to be solved is to obtain a heat exchanger that prevents re-evaporated vapor from rising from the exhausted drain and does not adversely affect the surrounding environment.

本発明は、熱交換容器に蒸気と冷却流体を供給して、蒸気を冷却流体で熱交換することにより凝縮させるものにおいて、熱交換容器で蒸気の凝縮したドレンを外部へ排出するドレン排出部に、第2の熱交換容器を連設して、当該第2の熱交換容器の出口側へ流体中に混入した気体を外部へ排除する気体排除手段を取り付けたものである。   The present invention supplies steam and a cooling fluid to a heat exchange vessel and condenses the vapor by exchanging heat with the cooling fluid. In the drain discharge portion for discharging the drain condensed steam in the heat exchange vessel to the outside. The second heat exchange vessel is continuously provided, and the gas exclusion means for excluding the gas mixed in the fluid to the outside is attached to the outlet side of the second heat exchange vessel.

本発明は、ドレン排出部に第2の熱交換容器を連設したことによって、ドレン排出部から排出されるドレンを、第2の熱交換容器で熱交換して冷却することができ、従って、排出ドレンからモヤモヤと立ち昇る再蒸発蒸気を無くすことができる。   In the present invention, the second heat exchange vessel is connected to the drain discharge portion, so that the drain discharged from the drain discharge portion can be cooled by exchanging heat in the second heat exchange vessel. It is possible to eliminate re-evaporated vapor rising from the drainage drain.

本発明は、第2の熱交換容器を連設するものであるが、第2の熱交換容器としては、排出ドレンと直接接触して熱交換するものでも、あるいは、排出ドレンと間接的に接触して熱交換するものでも用いることができる。   In the present invention, the second heat exchange vessel is connected in series. However, the second heat exchange vessel may be in direct contact with the drainage to exchange heat or indirectly in contact with the drainage drain. Thus, heat exchange can also be used.

図1において、熱交換容器1と、凝縮させるべく蒸気を供給する蒸気供給管2と、熱交換容器1内に配置した冷却流体管3と、熱交換容器1の下部に設けたドレン排出部9、及び、ドレン排出部9に連設した第2の熱交換容器5とで熱交換器を構成する。   In FIG. 1, a heat exchange container 1, a steam supply pipe 2 that supplies steam to be condensed, a cooling fluid pipe 3 disposed in the heat exchange container 1, and a drain discharge portion 9 provided in the lower part of the heat exchange container 1. And the heat exchanger is comprised with the 2nd heat exchange container 5 provided in a row by the drain discharge part 9. FIG.

熱交換容器1内の中心部に円筒パイプ状で上下端開放状態の大気開放管6を設ける。大気開放管6の外周に、銅製長尺パイプをコイル状に形成した冷却流体管3を配置し、この冷却流体管3の下端に冷却流体供給管7を接続して、上端は温水排出管8と接続する。冷却流体供給管7から供給される冷却流体が、冷却流体管3を通って排出管8へと至るものである。 At the center of the heat exchange vessel 1 is provided a cylindrical pipe-shaped air release pipe 6 that is open at the upper and lower ends. A cooling fluid pipe 3 in which a copper long pipe is formed in a coil shape is arranged on the outer periphery of the atmosphere opening pipe 6, a cooling fluid supply pipe 7 is connected to the lower end of the cooling fluid pipe 3, and the upper end is a hot water discharge pipe 8. Connect with. The cooling fluid supplied from the cooling fluid supply pipe 7 passes through the cooling fluid pipe 3 to the discharge pipe 8.

大気開放管6の内部下方にオーバーフロー管9を配置する。オーバーフロー管9は鉛直直線状で上端11を大気開放管6内に開口する。本実施例においては、オーバーフロー管9がドレン排出部を構成する。ドレン排出部9の下端を第2の熱交換容器5と接続する。 An overflow pipe 9 is disposed below the atmosphere opening pipe 6. The overflow pipe 9 has a vertical straight line shape and opens at the upper end 11 into the atmosphere opening pipe 6. In this embodiment, the overflow pipe 9 constitutes a drain discharge part. The lower end of the drain discharge part 9 is connected to the second heat exchange container 5.

第2の熱交換容器5は、円筒状のタンクで構成して内部にコイル状の第2の冷却流体管12を配置し、冷却流体管12の上端に冷却流体供給管7を接続すると共に、冷却流体管12の下端は排出管13と接続する。   The second heat exchange vessel 5 is constituted by a cylindrical tank, and the coil-like second cooling fluid pipe 12 is disposed therein, and the cooling fluid supply pipe 7 is connected to the upper end of the cooling fluid pipe 12, and The lower end of the cooling fluid pipe 12 is connected to the discharge pipe 13.

第2の熱交換容器5の下端部に、熱交換されたドレンを系外へ排出するドレン排出管4を接続する。ドレン排出管4に気体排除手段14を取り付ける。気体排除手段14は、従来より用いられている自動空気抜弁、あるいは、手動で開閉弁することによって気体を排除することのできる手動弁を取り付けることができる。この気体排除手段14は、ドレン排出管4内を流下してきた流体中に混入している空気を、系外へ排除することができるものである。 A drain discharge pipe 4 for discharging the heat-exchanged drain to the outside of the system is connected to the lower end portion of the second heat exchange container 5. A gas exclusion means 14 is attached to the drain discharge pipe 4. The gas evacuation means 14 can be equipped with an automatic air vent valve conventionally used or a manual valve that can evacuate gas by manually opening and closing the valve. This gas exclusion means 14 can exclude the air mixed in the fluid flowing down in the drain discharge pipe 4 out of the system.

蒸気供給管2は、図示しない蒸気使用装置の出口側や再蒸発タンク等と接続して、凝縮すべく蒸気を熱交換容器1内に供給する。蒸気供給管2から熱交換容器1内へ供給される蒸気が、冷却流体管3で冷却されて凝縮しドレンとなって底部のドレン溜部10に滴下する。   The steam supply pipe 2 is connected to an outlet side of a steam using device (not shown), a re-evaporation tank or the like, and supplies steam into the heat exchange container 1 for condensation. The steam supplied from the steam supply pipe 2 into the heat exchange container 1 is cooled by the cooling fluid pipe 3, condensed and drained into the drain reservoir 10 at the bottom.

冷却流体管3でドレン及び蒸気から熱を奪って温度上昇した冷却流体は、排出管8から所定のドレン回収箇所へと回収される。一方、ドレン溜部10のドレンは、供給される蒸気の圧力により大気開放管6内を上昇して、ドレン排出部9の上端から第2の熱交換容器5内へ流下する。第2の熱交換容器5でドレンは熱交換して冷却されることによって、ドレン排出管4から排出されるドレンの再蒸発に伴うモヤモヤとした再蒸発蒸気が周辺環境へ立ち昇ることがない。   The cooling fluid whose temperature has been increased by removing heat from the drain and steam in the cooling fluid pipe 3 is recovered from the discharge pipe 8 to a predetermined drain recovery location. On the other hand, the drain in the drain reservoir 10 rises in the atmosphere open pipe 6 due to the pressure of the supplied steam, and flows down from the upper end of the drain discharge part 9 into the second heat exchange vessel 5. As the drain is cooled by exchanging heat in the second heat exchange vessel 5, the re-evaporated vapor that has become moy with the re-evaporation of the drain discharged from the drain discharge pipe 4 does not rise to the surrounding environment.

本発明の熱交換器の実施例を示す構成図。The block diagram which shows the Example of the heat exchanger of this invention.

符号の説明Explanation of symbols

1 熱交換容器
2 蒸気供給管
3 冷却流体管
4 ドレン排出管
5 第2の熱交換容器
6 大気開放管
7 冷却流体供給管
8 温水排出管
9 ドレン排出部
12 第2の冷却流体管
13 排出管
14 気体排除手段
DESCRIPTION OF SYMBOLS 1 Heat exchange container 2 Steam supply pipe 3 Cooling fluid pipe 4 Drain discharge pipe 5 2nd heat exchange container 6 Atmospheric release pipe 7 Cooling fluid supply pipe 8 Hot water discharge pipe 9 Drain discharge part 12 2nd cooling fluid pipe 13 Discharge pipe 14 Gas exclusion means

Claims (1)

熱交換容器に蒸気と冷却流体を供給して、蒸気を冷却流体で熱交換することにより凝縮させるものにおいて、熱交換容器で蒸気の凝縮したドレンを外部へ排出するドレン排出部に、第2の熱交換容器を連設して、当該第2の熱交換容器の出口側へ流体中に混入した気体を外部へ排除する気体排除手段を取り付けたことを特徴とする熱交換器。
Supplying steam and cooling fluid to the heat exchange container, and condensing the steam by heat exchange with the cooling fluid, the drain discharge section for discharging the drain condensed steam in the heat exchange container to the second, A heat exchanger in which a heat exchanging vessel is continuously provided, and gas exclusion means for excluding gas mixed in the fluid to the outside is attached to the outlet side of the second heat exchanging vessel.
JP2006134940A 2006-05-15 2006-05-15 Heat exchanger Pending JP2007303785A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
JP2006134940A JP2007303785A (en) 2006-05-15 2006-05-15 Heat exchanger

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108955297A (en) * 2018-07-27 2018-12-07 重庆澳来思节能科技有限公司 Low-pressure steam and condensing hot air furnace method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06300205A (en) * 1993-04-15 1994-10-28 Tlv Co Ltd Steam heating apparatus
JP2001227877A (en) * 2000-02-15 2001-08-24 Tlv Co Ltd Heat exchanger
JP2002054883A (en) * 2000-08-10 2002-02-20 Tlv Co Ltd Heat exchanger
JP2002054886A (en) * 2000-08-10 2002-02-20 Tlv Co Ltd Heat exchanger
JP2002147975A (en) * 2000-11-15 2002-05-22 Tlv Co Ltd Steam heating device
JP2004053029A (en) * 2002-07-16 2004-02-19 Tlv Co Ltd Heat exchanger

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06300205A (en) * 1993-04-15 1994-10-28 Tlv Co Ltd Steam heating apparatus
JP2001227877A (en) * 2000-02-15 2001-08-24 Tlv Co Ltd Heat exchanger
JP2002054883A (en) * 2000-08-10 2002-02-20 Tlv Co Ltd Heat exchanger
JP2002054886A (en) * 2000-08-10 2002-02-20 Tlv Co Ltd Heat exchanger
JP2002147975A (en) * 2000-11-15 2002-05-22 Tlv Co Ltd Steam heating device
JP2004053029A (en) * 2002-07-16 2004-02-19 Tlv Co Ltd Heat exchanger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108955297A (en) * 2018-07-27 2018-12-07 重庆澳来思节能科技有限公司 Low-pressure steam and condensing hot air furnace method

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