JP2010164237A - Condensate returning device - Google Patents

Condensate returning device Download PDF

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Publication number
JP2010164237A
JP2010164237A JP2009006579A JP2009006579A JP2010164237A JP 2010164237 A JP2010164237 A JP 2010164237A JP 2009006579 A JP2009006579 A JP 2009006579A JP 2009006579 A JP2009006579 A JP 2009006579A JP 2010164237 A JP2010164237 A JP 2010164237A
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Japan
Prior art keywords
condensate
heat exchanger
economizer
circulation
pump
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JP2009006579A
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Japanese (ja)
Inventor
Kazuo Hayashi
数郎 林
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TLV Co Ltd
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TLV Co Ltd
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Priority to JP2009006579A priority Critical patent/JP2010164237A/en
Publication of JP2010164237A publication Critical patent/JP2010164237A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a condensate returning device for keeping a temperature of the water supplied to an economizer at a prescribed value. <P>SOLUTION: A condensate supply pipe 1 is connected to a heat exchanger 2. A condensate return pump 4 is connected to a lower part of the heat exchanger 2. The condensate return pump 4 is composed of an ejector 10 and a circulation pump 11. A part of a circulation pathway 12 of the condensate return pump 4 is branched and connected to a condensate return pipe 13. The condensate return pipe 13 is connected to the economizer 14. Further a lower end section of the condensate return pipe 13 is branched to form a circulation pathway 19. The other end section of the circulation pathway 19 is connected to a top face of the heat exchanger 2. The condensate of a prescribed temperature from the heat exchanger 2 is supplied to the economizer 14. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、蒸気使用機器で発生した蒸気の凝縮水としての復水を、ボイラー等の復水回収先へ回収する復水回収装置に関する。  The present invention relates to a condensate recovery apparatus that recovers condensate as condensate of steam generated in a steam-using device to a condensate recovery destination such as a boiler.

従来の復水回収装置は、エコノマイザ３への給水温度を調節するために、給水ライン２を分岐した循環経路８と循環ポンプ１１を設けたもので、給水ポンプ６によって節炭器３を介してボイラー１へ回収することができるものである。  The conventional condensate recovery apparatus is provided with a circulation path 8 and a circulation pump 11 branched from the water supply line 2 in order to adjust the water supply temperature to the economizer 3. It can be recovered in the boiler 1.

上記従来の復水回収装置では、循環経路８を経由してエコノマイザ３へ供給される供給水の温度を精度良く所定値に維持できない問題があった。 The conventional condensate recovery apparatus has a problem that the temperature of the supply water supplied to the economizer 3 via the circulation path 8 cannot be accurately maintained at a predetermined value.

特開平９−２３６２０７号公報JP-A-9-236207

解決しようとする問題点は、エコノマイザに供給される供給水の温度を所定値に維持することのできる復水回収装置を得ることである。   The problem to be solved is to obtain a condensate recovery device that can maintain the temperature of the supply water supplied to the economizer at a predetermined value.

本発明は、蒸気使用機器で蒸気が凝縮して発生した復水を、復水回収ポンプによって節炭器を介してボイラーへ回収するものにおいて、節炭器を流下する復水の一部を、復水回収ポンプの入口側へ循環させる循環路を取り付けて、当該循環路に、循環復水を所定温度まで熱交換する熱交換器を取り付けたものである。   The present invention recovers the condensate generated by the condensation of steam in the steam-using equipment to the boiler through the economizer by the condensate recovery pump, and a part of the condensate flowing down the economizer, A circulation path for circulation to the inlet side of the condensate recovery pump is attached, and a heat exchanger for exchanging heat of the circulation condensate to a predetermined temperature is attached to the circulation path.

本発明は、循環復水の温度を所定値まで熱交換する熱交換器を循環路に取り付けたことによって、循環路からエコノマイザに供給される供給水の温度を精度良く所定値に維持することができるという利点がある。   According to the present invention, the temperature of the supply water supplied from the circulation path to the economizer can be accurately maintained at a predetermined value by attaching a heat exchanger for exchanging the temperature of the circulating condensate to a predetermined value in the circulation path. There is an advantage that you can.

本発明に係る復水回収装置の実施例を示す構成図である。It is a block diagram which shows the Example of the condensate collection | recovery apparatus which concerns on this invention.

本発明は、循環路に熱交換器を取り付けるものであるが、熱交換器としては、循環復水と冷却流体、及び、高温復水をそれぞれ混合して所定温度の液体とするものを用いることができる。   In the present invention, a heat exchanger is attached to the circulation path. As the heat exchanger, a circulating condensate, a cooling fluid, and a high-temperature condensate are mixed to form a liquid having a predetermined temperature. Can do.

図１において、復水供給管１と、熱交換器２と、復水回収ポンプ４、及び、循環路１９とで復水回収装置を構成する。   In FIG. 1, a condensate supply pipe 1, a heat exchanger 2, a condensate recovery pump 4, and a circulation path 19 constitute a condensate recovery apparatus.

復水供給管１は、上端部を図示しない蒸気使用機器などの高温復水発生源と接続し、下端部を熱交換器２の右側上部と接続する。 The condensate supply pipe 1 has an upper end connected to a high-temperature condensate generation source such as a steam using device (not shown) and a lower end connected to the upper right side of the heat exchanger 2.

熱交換器２は、縦長の円筒状で、左側上部に冷却流体供給管２０を接続して、この冷却流体供給管２０から供給される冷却流体と、復水供給管１から供給される高温復水と、循環路１９から供給される循環復水のそれぞれを混合して、所定の温度となるように熱交換するものである。 The heat exchanger 2 has a vertically long cylindrical shape, and a cooling fluid supply pipe 20 is connected to the upper left side, and the cooling fluid supplied from the cooling fluid supply pipe 20 and the high temperature recovery supplied from the condensate supply pipe 1. Water and each of the circulating condensate supplied from the circulation path 19 are mixed and heat-exchanged so as to reach a predetermined temperature.

熱交換器２の下部を、管路９によって復水回収ポンプ４と接続する。復水回収ポンプ４は、エゼクタ１０と循環ポンプ１１を循環通路１２で接続したもので、循環通路１２の一部を分岐して復水回収管１３を接続する。循環ポンプ１１を駆動することによって、エゼクタ１０で吸引力を発生して、熱交換器２内の所定温度の復水を吸引するものである。 The lower part of the heat exchanger 2 is connected to the condensate recovery pump 4 by a pipe 9. The condensate recovery pump 4 is formed by connecting an ejector 10 and a circulation pump 11 with a circulation passage 12. A part of the circulation passage 12 is branched and a condensate recovery pipe 13 is connected. By driving the circulation pump 11, the ejector 10 generates a suction force to suck the condensate at a predetermined temperature in the heat exchanger 2.

循環路１９の上部に給水タンク３を取り付ける。給水タンク３の下端部に給水ポンプ６を接続して復水回収管１３の端部と接続する。給水タンク３の上面には、タンク３内へ冷却水を供給する冷却水供給管７を接続する。 The water supply tank 3 is attached to the upper part of the circulation path 19. A water supply pump 6 is connected to the lower end of the water supply tank 3 and connected to the end of the condensate recovery pipe 13. A cooling water supply pipe 7 for supplying cooling water into the tank 3 is connected to the upper surface of the water supply tank 3.

復水回収管１３の端部を、節炭器（エコノマイザ）１４と接続する。節炭器１４の内部に復水回収管１３がコイル状に配置され、復水回収管１３の下端部を蒸気ボイラー１５の給水口１６と接続する。節炭器１４では、蒸気ボイラー１５で発生した燃焼ガスと復水回収管１３内の液体とが熱交換されて、温度上昇した液体がボイラー１５へ供給水として供給されるものである。蒸気ボイラー１５で発生した高温蒸気は、上方の蒸気ヘッダー管１７と蒸気供給管１８から、図示しない蒸気使用機器へ供給される。 The end of the condensate recovery pipe 13 is connected to a economizer 14. A condensate recovery pipe 13 is arranged in a coil shape inside the economizer 14, and a lower end portion of the condensate recovery pipe 13 is connected to a water supply port 16 of the steam boiler 15. In the economizer 14, the combustion gas generated in the steam boiler 15 and the liquid in the condensate recovery pipe 13 are heat-exchanged, and the liquid whose temperature has increased is supplied to the boiler 15 as supply water. The high-temperature steam generated in the steam boiler 15 is supplied from an upper steam header pipe 17 and a steam supply pipe 18 to a steam using device (not shown).

復水回収管１３の下端部を分岐して循環路１９を取り付ける。循環路１９の上端部を、熱交換器２の上端部と接続する。この循環路１９によって、節炭器１４を流下する復水の一部を、復水回収ポンプ４の入口側へ循環させることができるものである。 The lower end of the condensate recovery pipe 13 is branched and a circulation path 19 is attached. The upper end of the circulation path 19 is connected to the upper end of the heat exchanger 2. By this circulation path 19, a part of the condensate flowing down the economizer 14 can be circulated to the inlet side of the condensate recovery pump 4.

熱交換器２で所定温度に維持された復水を、復水回収ポンプ４から節炭器１４へ供給することができる。 Condensate maintained at a predetermined temperature by the heat exchanger 2 can be supplied from the condensate recovery pump 4 to the economizer 14.

発生する復水の温度が、低温から高温までの幅広い温度範囲の場合の復水回収装置として適用できる。   It can be applied as a condensate recovery device when the temperature of the condensate generated is in a wide temperature range from low to high.

１ 復水供給管
２ 熱交換器
３ 給水タンク
４ 復水回収ポンプ
７ 冷却水供給管
１０ エゼクタ
１１ 循環ポンプ
１２ 循環通路
１３ 復水回収管
１４ 節炭器
１５ 蒸気ボイラー
１９ 循環路
２０ 冷却流体供給管 DESCRIPTION OF SYMBOLS 1 Condensate supply pipe 2 Heat exchanger 3 Water supply tank 4 Condensate recovery pump 7 Cooling water supply pipe 10 Ejector 11 Circulation pump 12 Circulation path 13 Condensate recovery pipe 14 Eco-conserving device 15 Steam boiler 19 Circulation path 20 Cooling fluid supply pipe

Claims (1)

蒸気使用機器で蒸気が凝縮して発生した復水を、復水回収ポンプによって節炭器を介してボイラーへ回収するものにおいて、節炭器を流下する復水の一部を、復水回収ポンプの入口側へ循環させる循環路を取り付けて、当該循環路に、循環復水を所定温度まで熱交換する熱交換器を取り付けたことを特徴とする復水回収装置。   Condensate generated by condensing steam in steam-using equipment is recovered by the condensate recovery pump to the boiler via the economizer, and a portion of the condensate flowing down the economizer is recovered from the condensate recovery pump. A condensate recovery apparatus is provided, wherein a circulation path for circulation to the inlet side is attached, and a heat exchanger for exchanging heat of the circulating condensate to a predetermined temperature is attached to the circulation path.
JP2009006579A 2009-01-15 2009-01-15 Condensate returning device Pending JP2010164237A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101455650B1 (en) 2013-04-04 2014-10-28 삼성중공업 주식회사 Economizer with double cover

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06129605A (en) * 1992-10-15 1994-05-13 Tlv Co Ltd Condensate recoverying device
JPH09112808A (en) * 1995-10-13 1997-05-02 Tlv Co Ltd Condensation recovery device
JPH09137910A (en) * 1995-11-15 1997-05-27 Tlv Co Ltd Low pressure steam heater by heat medium
JPH09196305A (en) * 1996-01-12 1997-07-29 Tlv Co Ltd Condensation recovery device
JP2002256816A (en) * 2001-02-26 2002-09-11 Toshiba Corp Combined cycle generating plant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06129605A (en) * 1992-10-15 1994-05-13 Tlv Co Ltd Condensate recoverying device
JPH09112808A (en) * 1995-10-13 1997-05-02 Tlv Co Ltd Condensation recovery device
JPH09137910A (en) * 1995-11-15 1997-05-27 Tlv Co Ltd Low pressure steam heater by heat medium
JPH09196305A (en) * 1996-01-12 1997-07-29 Tlv Co Ltd Condensation recovery device
JP2002256816A (en) * 2001-02-26 2002-09-11 Toshiba Corp Combined cycle generating plant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101455650B1 (en) 2013-04-04 2014-10-28 삼성중공업 주식회사 Economizer with double cover

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