JP2010065984A - Vapor compression type refrigerating machine - Google Patents

Vapor compression type refrigerating machine Download PDF

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JP2010065984A
JP2010065984A JP2008235329A JP2008235329A JP2010065984A JP 2010065984 A JP2010065984 A JP 2010065984A JP 2008235329 A JP2008235329 A JP 2008235329A JP 2008235329 A JP2008235329 A JP 2008235329A JP 2010065984 A JP2010065984 A JP 2010065984A
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compressor
condenser
warm drainage
screw
evaporator
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JP2008235329A
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JP5306751B2 (en
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Naoki Matsukawa
直樹 松川
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TLV Co Ltd
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TLV Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a vapor compression type refrigerating machine effectively utilizing heat energy of warm drainage. <P>SOLUTION: A screw type compressor 1 is connected to an upper section of a warm drainage tank 5 through a pipe conduit 6. A condenser 2 is connected to an outlet side of the screw-type compressor 1 through a pipe conduit 9. A cooling water supply pipe 10 and an ejector type vacuum pump 11 are connected to the condenser 2. An evaporator 4 is connected to a lower part of the condenser 2 through an expansion valve 3. A refrigerant supply pipe 15 and a discharge pipe 16 are connected to the evaporator 4. The vapor reevaporated in the warm drainage tank 5 is sucked to the screw type compressor 1 to be effectively utilized as cooling heat source for cooling the refrigerant by cooling condensation and adiabatic expansion. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

この発明は蒸気圧縮式冷凍機に関し、特に、従来は廃棄されていた温排水からの再蒸発蒸気を利用する蒸気圧縮式冷凍機に関する。   The present invention relates to a vapor compression refrigerator, and more particularly, to a vapor compression refrigerator that uses re-evaporated vapor from warm wastewater that has been conventionally discarded.

冷凍機は、発電機２と吸収冷凍機１０を組み合わせて、発電機２をガスエンジン３で駆動すると共に、ガスエンジン３の排ガスＥＧと、ガスエンジン３を冷却する冷却水ＥＷを、吸収冷凍機１０の熱源として用いるもので、ガスエンジン３の排熱を有効に活用することができるものである。   The refrigerator combines the generator 2 and the absorption refrigerator 10 to drive the generator 2 with the gas engine 3, and absorbs the exhaust gas EG of the gas engine 3 and the cooling water EW for cooling the gas engine 3. 10 is used as a heat source, and the exhaust heat of the gas engine 3 can be effectively utilized.

上記従来の冷凍機では、各種工場やプラントの現場において、ほとんど廃棄されていた比較的温度の低い温排水を有効に活用することができない問題があった。温度の低い温排水であってもいまだ熱エネルギーを保有しており、その量が多くなれば保有している熱エネルギーも大きなものとなり、有効に活用することによって省エネルギーを図ることができる。
特開２００１−１８３０２７号公報 The conventional refrigerator has a problem that it cannot effectively utilize the warm waste water having a relatively low temperature that has been almost discarded in various factories and plant sites. Even warm wastewater with a low temperature still retains thermal energy, and if the amount increases, the thermal energy it possesses will become large, and energy can be saved by making effective use.
JP 2001-183027 A

解決しようとする課題は、温排水の熱エネルギーを有効に活用することのできる蒸気圧縮式冷凍機を得ることである。   The problem to be solved is to obtain a vapor compression refrigerator that can effectively use the thermal energy of hot waste water.

本発明は、圧縮機と凝縮器と膨張弁と蒸発器からなるものにおいて、圧縮機をスクリュー式のコンプレッサとすると共に、当該スクリュー式コンプレッサの入口側に比較的低温度の温排水源を接続して、当該温排水の再蒸発蒸気をスクリュー式コンプレッサで圧縮するものである。   The present invention comprises a compressor, a condenser, an expansion valve, and an evaporator. The compressor is a screw-type compressor, and a relatively low-temperature hot waste water source is connected to the inlet side of the screw-type compressor. Thus, the re-evaporated steam of the warm waste water is compressed by a screw compressor.

本発明の蒸気圧縮式冷凍機は、圧縮機を比較的低温度の温排水源と接続して、この温排水の再蒸発蒸気を圧縮機で圧縮することによって、温排水の熱エネルギーを有効に活用することのできる蒸気圧縮式冷凍機を得ることができる。   The vapor compression refrigerator of the present invention effectively connects thermal energy of hot wastewater by connecting the compressor to a relatively low temperature hot wastewater source and compressing the re-evaporated steam of the warm wastewater with the compressor. A vapor compression refrigerator that can be utilized can be obtained.

本発明は、圧縮機を温排水源と接続するものであるが、温排水源としては、温排水を一旦溜め置く温排水タンクとして、この温排水タンク内で温排水から再蒸発した蒸気を圧縮機で圧縮することが好適である。   In the present invention, the compressor is connected to a warm drainage source. As the warm drainage source, as a warm drainage tank in which the warm drainage is temporarily stored, the vapor re-evaporated from the warm drainage is compressed in the warm drainage tank. It is preferable to compress with a machine.

図１において、圧縮機１と凝縮器２と膨張弁３と蒸発器４、及び、温排水源としての温排水タンク５とで蒸気圧縮式冷凍機を構成する。   In FIG. 1, a compressor 1, a condenser 2, an expansion valve 3, an evaporator 4, and a warm drainage tank 5 as a warm drainage source constitute a vapor compression refrigerator.

圧縮機１はスクリュー式のコンプレッサを用いて、コンプレッサの入口と温排水タンク５の上部を管路６で接続する。温排水タンク５の左側面に温排水供給管７を接続する。温排水タンク５の右側面にタンク５内の余剰水を排除する余剰水排出管８を接続する。 The compressor 1 uses a screw type compressor, and connects the inlet of the compressor and the upper part of the warm drainage tank 5 by a pipe 6. A warm drainage supply pipe 7 is connected to the left side surface of the warm drainage tank 5. An excess water discharge pipe 8 for removing excess water in the tank 5 is connected to the right side surface of the warm drainage tank 5.

圧縮機１の出口側に管路９を介して凝縮器２と接続する。凝縮器２の内部に管路９がコイル状に配置されて下方の膨張弁３と連通する。凝縮器２には、冷却水供給管１０を接続すると共に、エゼクター式真空ポンプ１１を接続する。エゼクター式真空ポンプ１１は、エゼクター１２とタンク１３と循環ポンプ１４とで構成され、タンク１３内の冷却水を循環ポンプ１４でエゼクター１２へ供給することによって、エゼクター１２で真空吸引力を発生して、凝縮器２の上部と下部から凝縮器２内を吸引して大気圧以下の真空状態に維持し、凝縮器２内で管路９から供給される圧縮蒸気を冷却水が蒸発することによる蒸発潜熱でもって気化冷却することができるものである。   The condenser 1 is connected to the outlet side of the compressor 1 through a pipe 9. A conduit 9 is arranged in a coil shape inside the condenser 2 and communicates with the lower expansion valve 3. The condenser 2 is connected to a cooling water supply pipe 10 and an ejector vacuum pump 11. The ejector type vacuum pump 11 includes an ejector 12, a tank 13, and a circulation pump 14. By supplying the cooling water in the tank 13 to the ejector 12 with the circulation pump 14, the ejector 12 generates a vacuum suction force. Then, the inside of the condenser 2 is sucked from the upper part and the lower part of the condenser 2 to maintain a vacuum state below atmospheric pressure, and the compressed steam supplied from the pipe line 9 in the condenser 2 is evaporated by the cooling water evaporating. It can be vaporized and cooled with latent heat.

凝縮器２の下方に膨張弁３を介して蒸発器４を接続する。蒸発器４には、冷媒供給管１５と排出管１６をそれぞれコイル状に接続する。凝縮器２で冷却された圧縮蒸気は低温水となって膨張弁３から蒸発器４内へ噴射されることで断熱膨張すると共に、冷媒管１５，１６内の冷媒の熱を奪って蒸発することで、冷媒を所定の低温まで冷却することができるものである。蒸発器４内で蒸発した蒸気は、管路１７をとおって再度、圧縮機１へ吸引される。   An evaporator 4 is connected below the condenser 2 via an expansion valve 3. A refrigerant supply pipe 15 and a discharge pipe 16 are connected to the evaporator 4 in a coil shape. The compressed steam cooled by the condenser 2 becomes low-temperature water and is injected into the evaporator 4 from the expansion valve 3 so as to be adiabatically expanded and take away the heat of the refrigerant in the refrigerant pipes 15 and 16 and evaporate. Thus, the refrigerant can be cooled to a predetermined low temperature. The vapor evaporated in the evaporator 4 is again sucked into the compressor 1 through the pipe line 17.

温排水供給管７から温排水タンク５内へ供給された温排水の一部が再度蒸発してタンク５の上部に溜まり、この再蒸発蒸気がスクリュー式コンプレッサ１に吸引されて高圧高温の蒸気となり、管路９をとおって凝縮器２へ送られて冷却されて高圧低温の低温水となって、膨張弁３から蒸発器４へ供給されて冷媒を冷却するための熱源となる。   A part of the warm drainage supplied from the warm drainage supply pipe 7 into the warm drainage tank 5 is evaporated again and collected in the upper part of the tank 5, and this reevaporated steam is sucked into the screw compressor 1 and becomes high-pressure and high-temperature steam. Then, it is sent to the condenser 2 through the conduit 9 and cooled to become high-pressure and low-temperature low-temperature water, which is supplied from the expansion valve 3 to the evaporator 4 and becomes a heat source for cooling the refrigerant.

スクリュー式コンプレッサ１を比較的低温度の温排水タンク５と接続して、この温排水の再蒸発蒸気をスクリュー式コンプレッサ１で圧縮することによって、温排水の保有する熱エネルギーを有効に活用することができる。   By connecting the screw-type compressor 1 to the warm drainage tank 5 having a relatively low temperature and compressing the re-evaporated steam of the warm drainage with the screw-type compressor 1, the thermal energy possessed by the warm drainage can be effectively utilized. Can do.

本発明の蒸気圧縮式冷凍機の実施例を示す構成図。The block diagram which shows the Example of the vapor compression type refrigerator of this invention.

符号の説明Explanation of symbols

１ スクリュー式コンプレッサ
２ 凝縮器
３ 膨張弁
４ 蒸発器
５ 温排水タンク
７ 温排水供給管
１０ 冷却水供給管
１１ エゼクター式真空ポンプ
１２ エゼクター
１３ タンク
１４ 循環ポンプ
１５ 冷媒供給管
１６ 冷媒排出管
DESCRIPTION OF SYMBOLS 1 Screw type compressor 2 Condenser 3 Expansion valve 4 Evaporator 5 Warm drainage tank 7 Warm drainage supply pipe 10 Cooling water supply pipe 11 Ejector type vacuum pump 12 Ejector 13 Tank 14 Circulation pump 15 Refrigerant supply pipe 16 Refrigerant discharge pipe

Claims (1)

圧縮機と凝縮器と膨張弁と蒸発器からなるものにおいて、圧縮機をスクリュー式のコンプレッサとすると共に、当該スクリュー式コンプレッサの入口側に比較的低温度の温排水源を接続して、当該温排水の再蒸発蒸気をスクリュー式コンプレッサで圧縮することを特徴とする蒸気圧縮式冷凍機。
In the compressor consisting of a compressor, a condenser, an expansion valve and an evaporator, the compressor is a screw type compressor, and a relatively low temperature hot waste water source is connected to the inlet side of the screw type compressor, and the temperature A vapor compression refrigerator that compresses the re-evaporated vapor of wastewater with a screw compressor.
JP2008235329A 2008-09-12 2008-09-12 Vapor compression refrigerator Expired - Fee Related JP5306751B2 (en)

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JP5306751B2 JP5306751B2 (en) 2013-10-02

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60147067A (en) * 1984-01-10 1985-08-02 協和醗酵工業株式会社 Heat pump
JPS61138057A (en) * 1984-12-10 1986-06-25 株式会社東芝 Heat pump device
JPH0926103A (en) * 1995-07-14 1997-01-28 Tlv Co Ltd Vacuum steam heater
JPH09170827A (en) * 1995-11-13 1997-06-30 Carrier Corp Refrigeration system
WO2002077546A1 (en) * 2001-03-14 2002-10-03 Sekisui Chemical Co., Ltd. Heat pump, and heat pump system
JP2003074994A (en) * 2001-08-28 2003-03-12 Calsonic Kansei Corp Radiator
JP2003314915A (en) * 2002-04-22 2003-11-06 Sanken Setsubi Kogyo Co Ltd Water cooling medium natural-circulation cooling system by water vapor compression refrigerating machine
JP2004218515A (en) * 2003-01-15 2004-08-05 Tlv Co Ltd Power generator by steam
JP2006292229A (en) * 2005-04-08 2006-10-26 Mayekawa Mfg Co Ltd Co2 refrigeration cycle device and supercritical refrigeration operation method therefor
JP2009085044A (en) * 2007-09-28 2009-04-23 Hitachi Ltd Compressor and heat pump system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60147067A (en) * 1984-01-10 1985-08-02 協和醗酵工業株式会社 Heat pump
JPS61138057A (en) * 1984-12-10 1986-06-25 株式会社東芝 Heat pump device
JPH0926103A (en) * 1995-07-14 1997-01-28 Tlv Co Ltd Vacuum steam heater
JPH09170827A (en) * 1995-11-13 1997-06-30 Carrier Corp Refrigeration system
WO2002077546A1 (en) * 2001-03-14 2002-10-03 Sekisui Chemical Co., Ltd. Heat pump, and heat pump system
JP2003074994A (en) * 2001-08-28 2003-03-12 Calsonic Kansei Corp Radiator
JP2003314915A (en) * 2002-04-22 2003-11-06 Sanken Setsubi Kogyo Co Ltd Water cooling medium natural-circulation cooling system by water vapor compression refrigerating machine
JP2004218515A (en) * 2003-01-15 2004-08-05 Tlv Co Ltd Power generator by steam
JP2006292229A (en) * 2005-04-08 2006-10-26 Mayekawa Mfg Co Ltd Co2 refrigeration cycle device and supercritical refrigeration operation method therefor
JP2009085044A (en) * 2007-09-28 2009-04-23 Hitachi Ltd Compressor and heat pump system

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