JPS60147097A - Heat exchanger for waste heat recovery - Google Patents
Heat exchanger for waste heat recoveryInfo
- Publication number
- JPS60147097A JPS60147097A JP232284A JP232284A JPS60147097A JP S60147097 A JPS60147097 A JP S60147097A JP 232284 A JP232284 A JP 232284A JP 232284 A JP232284 A JP 232284A JP S60147097 A JPS60147097 A JP S60147097A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- heat
- exhaust gas
- damper
- duct
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は工業炉やボイラ等よルの排ガスの熱回収用の熱
交換器に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat exchanger for recovering heat from exhaust gas from industrial furnaces, boilers, etc.
種々の工業プルセスには未利用の排熱源があるが、これ
らの排熱源の利用についてはエネルギ価格が安価であっ
た時代に計画され建設された設備においては未だ充分に
利用されていない。Various industrial processes have unused waste heat sources, but these waste heat sources are still not fully utilized in facilities that were planned and constructed in an era when energy prices were low.
しかし石油危機以来のエネルギ価格の高騰によ）各設備
には省エネルギ対策として排熱回収機器が導入され、排
熱の再利用と燃料の節減にその効果があげられている。However, due to the skyrocketing energy prices since the oil crisis), exhaust heat recovery equipment has been installed in each facility as an energy-saving measure, and has been shown to be effective in reusing waste heat and saving fuel.
本発明は各種の工業炉、ボイラ、乾燥機など大量の燃料
が燃焼消費される設備におけるこれらの排熱回収用熱交
換器の改良に関するものである。この排熱回収用熱交換
器においては通常排ガス通路にバイパスダクトが設けら
れておシ、これは熱交換器の部分負荷運転中や熱交換器
の故障や熱交換パイプの破損などの場合に熱源機器の設
備の運転を止めることなく排ガスをバイパスさせて熱交
換器の故障に対処するだめに設けられているものである
。The present invention relates to improvements in heat exchangers for exhaust heat recovery in equipment such as various industrial furnaces, boilers, dryers, etc. in which a large amount of fuel is burned and consumed. In this heat exchanger for waste heat recovery, a bypass duct is usually installed in the exhaust gas passage, and this is used as a heat source when the heat exchanger is operating at partial load or in the event of a failure of the heat exchanger or damage to the heat exchange pipe. This system is designed to bypass heat exchanger failures without stopping equipment operation.
従来これらのバイパスダクトが設けられている熱交換器
は、熱交換器の入口および出口から分岐口を設はバイパ
スダクトが取付けられていたためにバイパスダクトの構
造が複雑となシ、ダクトの１９部分に広い場所を必要と
し、またバイパスダクト、バイパスダンパなどの支持構
造も大型となシ、設備費も非常に高くなるという欠点を
有するものであった。Conventionally, heat exchangers that are equipped with these bypass ducts have branch ports from the inlet and outlet of the heat exchanger, and the structure of the bypass duct is complicated. This method requires a large space, requires large support structures such as bypass ducts and bypass dampers, and has the drawbacks of extremely high equipment costs.
第１図は従来のバイパスダクトを有する熱交換器の実施
例であシ１はフィンチューブなどを有する熱交換器であ
多接続配管２，２′ によ）ブラインなどの熱媒体が循
環され熱交換がおこなわれる。３は入口ダクトであシ熱
源機器に接続されておシ、入口ダクト３よシ送られてき
た排ガスは熱交換器１にて熱交換されたのち出口ダクト
４より排出される。この熱交換器１と並列にバイパスダ
クト５が設けられ夫々のダクトにはダンパ６．７が設け
られモータ８によシダンパ６および７は開閉が夫々逆に
作動するように連動して構成せられたものである。この
ような構成においてはバイパスダクト５は熱交換器１と
は完全に独立して設けられ、また相互に連動するダンパ
６および１が遠く離れているために開閉のリンク機構も
複雑となシ、従ってダクト、ダンパまたその支持構造が
複雑、大型となシ設備費も高くなるという欠点を有して
いた。Figure 1 shows an example of a conventional heat exchanger having a bypass duct. 1 is a heat exchanger having fin tubes, etc., in which a heat medium such as brine is circulated through multi-connection piping 2, 2'). An exchange takes place. Reference numeral 3 denotes an inlet duct which is connected to a heat source device. Exhaust gas sent through the inlet duct 3 undergoes heat exchange in a heat exchanger 1 and then is discharged from an outlet duct 4. A bypass duct 5 is provided in parallel with the heat exchanger 1, and dampers 6 and 7 are provided in each duct, and the dampers 6 and 7 are configured to be interlocked so that the dampers 6 and 7 are opened and closed in opposite directions by the motor 8. It is something that In such a configuration, the bypass duct 5 is provided completely independently of the heat exchanger 1, and since the dampers 6 and 1 that interlock with each other are far apart, the link mechanism for opening and closing is also complicated. Therefore, the duct, the damper, and the supporting structure thereof are complicated and large, and the equipment cost is also high.
本発明は熱交換器に設けられたバイパスダクトの上述の
欠点を解決するためになされたものであ）、その構成は
高温排ガスダクトの途中に設けられた高温排ガス熱回収
用の熱交換器と、低温ガス流路を形成するダクトに設け
られた熱交換器を配管によシ連絡して、これに熱媒を循
環せしめて高温排ガスの排熱を回収し、これを熱媒を介
して低温ガスを加熱する排熱回収設備において、上記の
高温排ガス用熱交換器に並流し、かつ排ガス入口側にダ
ンパを設けたバイパスダクトを高温排ガス用の熱交換器
に一体として組込んだことを構造上の特徴とする排熱回
収用熱交換器であシ、これを実施例の第２図に基づき詳
細に説明すると１１は高温排ガスの熱回収用熱交換器（
Ａ）であ）その前後部は入口ダンパ１２、入口ダクト１
３、および出口ダクト１４、ｒ出口ダンパ１５によシ排
ガスダクト１６ 、１６’に接続されている。１７は熱
交換器（Ａ）１１のバイパスダクトであり、このバイパ
スダクト１γは熱交換器ＣＡ）１１の入口および出口を
形成する入口ダクト１３および出口ダクト１４を構成す
るダクトの一部１８，１９をその構成する一部として、
また熱交換器（Ａ）１１の一面をも構成の一部として構
成せられたダクトであ）、その排ガスの入口側にはバイ
パスダンパ２ｏが設けられ、その入口および出口は排ガ
スダクト１６ 、１６’ に接続しておシ、熱交換器（
Ａ）１１を流通する高温排ガスの流路にたいしてバイパ
スの流路を形成している。２１は低温ガス加熱用の熱交
換器（Ｂ）であシ低温ガスダクト２２．２２’ に接続
されている。熱交換器（Ａ）１１と熱交換器（Ｂ）２１
は熱媒循環ポンプ２３を介して熱媒管２４，２４’ に
より接続され、熱媒は熱交換器（Ａ）１１よシ熱媒管２
４、熱交換器２１、熱媒管２４′、熱媒循環ポンプ２３
よシ熱交換器（Ａ）１１にもどる循環回路を形成１熱交
換器（Ａ）１１にて排ガスよシ受熱昇温した熱媒は熱交
換器（Ｂ）２１にて低温ガスを加熱するようになってい
る。２５は熱媒ｖ２４の途（５）
中に設けられている熱媒の膨張タンクである。The present invention was made in order to solve the above-mentioned drawbacks of the bypass duct provided in the heat exchanger), and its configuration is that of a heat exchanger for recovering heat from high-temperature exhaust gas provided in the middle of a high-temperature exhaust gas duct. A heat exchanger installed in a duct that forms a low-temperature gas flow path is connected to the piping, a heat medium is circulated through this, the exhaust heat of high-temperature exhaust gas is recovered, and this is transferred to a low-temperature gas via the heat medium. In exhaust heat recovery equipment that heats gas, a bypass duct that flows parallel to the above heat exchanger for high-temperature exhaust gas and has a damper on the exhaust gas inlet side is integrated into the heat exchanger for high-temperature exhaust gas. This is a heat exchanger for recovering heat from high-temperature exhaust gas (11), which is described in detail based on FIG.
A) The front and rear parts are the inlet damper 12 and the inlet duct 1.
3, and an outlet duct 14, connected by an outlet damper 15 to exhaust gas ducts 16, 16'. 17 is a bypass duct of the heat exchanger (A) 11, and this bypass duct 1γ is a part of the duct 18, 19 that constitutes the inlet duct 13 and the outlet duct 14 that form the inlet and outlet of the heat exchanger CA) 11. as a constituent part of
The duct also includes one side of the heat exchanger (A) 11), and a bypass damper 2o is provided on the exhaust gas inlet side, and the inlet and outlet are connected to the exhaust gas ducts 16, 16. ' Connect to the heat exchanger (
A) A bypass flow path is formed for the high temperature exhaust gas flow path flowing through 11. 21 is a heat exchanger (B) for heating low temperature gas and is connected to low temperature gas duct 22, 22'. Heat exchanger (A) 11 and heat exchanger (B) 21
are connected by heat medium pipes 24, 24' via a heat medium circulation pump 23, and the heat medium is transferred from the heat exchanger (A) 11 to the heat medium pipe 2.
4, heat exchanger 21, heat medium pipe 24', heat medium circulation pump 23
A circulating circuit is formed which returns to the heat exchanger (A) 11.1 The heated heat medium receives heat from the exhaust gas in the heat exchanger (A) 11 and heats the low temperature gas in the heat exchanger (B) 21. It has become. 25 is a heating medium expansion tank provided in the middle of the heating medium v24 (5).
また２６．２７は夫々ダンパ開閉用モータであシ、人口
ダンパ１２およびバイパスダンパ２０は１つのモータ２
６にて互に差動的に開閉するようになっており、人口ダ
ンパ１２が全開の場合にはバイパスダンパ２０は全閉と
なシ入口ダンパ１２が閉ぢるに従いバイパスダンパ２０
は開放し、人口ダンパ１２が全閉となればバイパスダン
パ２０は全開となる。出ロダ／パ１５はモータ２７によ
シ入口ダンパ１２に附随して開閉するようになっている
。Further, 26 and 27 are motors for opening and closing the dampers, respectively, and the artificial damper 12 and the bypass damper 20 are connected to one motor 2.
When the artificial damper 12 is fully open, the bypass damper 20 is fully closed, and as the inlet damper 12 is closed, the bypass damper 20 is opened and closed differentially.
is opened, and when the artificial damper 12 is fully closed, the bypass damper 20 is fully opened. The output rod/pa 15 is opened and closed by a motor 27 along with the inlet damper 12.
ここでこのバイパスダクト１７を設けた理由は前記した
如く熱交換器の部分負荷運転、熱媒の温度調整や熱交換
器（Ａ）１１の故障の場合などに排ガスを熱交換器（Ａ
、）１１をバイパスさせることによシ対処させるもので
あるから、本発明においてはバイパスダクト１７と熱交
換器（Ａ）１１を一体として組込むことによ）、排ガス
の流量調整または熱交換器１１０人熱量調整をおこなう
ダンパを一体として組込み、また（６）
これを制御することができ、またダクトの一部を共用と
しているためにダクト全体の重量を軽減することができ
、コンパクトにして強固な構造にすることができるので
、その制御が容易になるとともに点検、保守も容易とな
部構造簡単にしてまた据付をおこなうのにも場所をとら
ず安価な排熱回収用熱交換器が提供できるものである。The reason why this bypass duct 17 is provided here is that, as mentioned above, the exhaust gas is transferred to the heat exchanger (A) for partial load operation of the heat exchanger, temperature adjustment of the heat medium, or in the case of a failure of the heat exchanger (A) 11.
, ) 11 , the present invention incorporates the bypass duct 17 and the heat exchanger (A) 11 as one unit to adjust the flow rate of the exhaust gas or the heat exchanger 110 . A damper that adjusts the amount of human heat is integrated, and (6) this can be controlled, and since a part of the duct is shared, the weight of the entire duct can be reduced, making it compact and strong. Since the structure can be changed, control becomes easy, and inspection and maintenance are also easy.The structure is simple, and it does not take up much space to install, making it possible to provide a heat exchanger for waste heat recovery that is inexpensive. It is something.
第１図は従来のバイパスダクトを有する熱交換器の概略
構造図、第２図は本発明の実施例の熱交換器および熱交
換システム系統図である。
１１．２１・・・熱交換器 １３，１４，１６゜１６’
、２２．２２’・・・ダクト １Ｔ・・・バイパスダク
） １８．１９・・・ダクトの構成の一部 １２，１５
，２０・・・ダンパ ２３・・・熱媒循環ポンプ ２４
，２４’−・・熱媒管２６．２７・・・ダンパ開閉用モ
ータ
（７）
第１ＥFIG. 1 is a schematic structural diagram of a conventional heat exchanger having a bypass duct, and FIG. 2 is a system diagram of a heat exchanger and a heat exchange system according to an embodiment of the present invention. 11.21... Heat exchanger 13, 14, 16°16'
, 22.22'...Duct 1T...Bypass duct) 18.19...Part of the duct configuration 12,15
, 20... Damper 23... Heat medium circulation pump 24
, 24'-... Heat medium pipe 26.27... Damper opening/closing motor (7) 1st E
Claims (1)
、低温ガス流路を形成するダクトに設けられた熱交換器
を配管にて連絡し、これに熱媒を循環せしめて排ガスの
排熱を回収し熱媒を介して低温ガスを加熱する排熱回収
設備において、上記の高温排ガス用熱交換器に並流し、
かつ排ガス入口側にダンパを設けたバイパスダクトを高
温排ガス用熱交換器に一体として組込んだことを特徴と
する排熱回収用熱交換器。(1) The heat exchanger installed in the middle of the high-temperature exhaust gas duct and the heat exchanger installed in the duct forming the low-temperature gas flow path are connected via piping, and a heat medium is circulated through this to exhaust the exhaust gas. In exhaust heat recovery equipment that recovers heat and heats low-temperature gas via a heat medium, parallel flow to the above-mentioned high-temperature exhaust gas heat exchanger,
A heat exchanger for exhaust heat recovery, characterized in that a bypass duct provided with a damper on the exhaust gas inlet side is integrated into the heat exchanger for high temperature exhaust gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP232284A JPS60147097A (en) | 1984-01-10 | 1984-01-10 | Heat exchanger for waste heat recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP232284A JPS60147097A (en) | 1984-01-10 | 1984-01-10 | Heat exchanger for waste heat recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60147097A true JPS60147097A (en) | 1985-08-02 |
Family
ID=11526079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP232284A Pending JPS60147097A (en) | 1984-01-10 | 1984-01-10 | Heat exchanger for waste heat recovery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60147097A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100862982B1 (en) | 2007-09-19 | 2008-10-13 | 서기철 | Waste heat recovery system |
| US7661415B2 (en) | 2004-09-28 | 2010-02-16 | T.Rad Co., Ltd. | EGR cooler |
| US7669645B2 (en) | 2004-09-28 | 2010-03-02 | T. Rad Co., Ltd. | Heat exchanger |
| JP2020518719A (en) * | 2017-04-24 | 2020-06-25 | ヘラー・エレクトロライザー・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツングＨｏｅｌｌｅｒ Ｅｌｅｃｔｒｏｌｙｚｅｒ ＧｍｂＨ | Method of operating water electrolysis device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5540467U (en) * | 1978-09-07 | 1980-03-15 |
-
1984
- 1984-01-10 JP JP232284A patent/JPS60147097A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5540467U (en) * | 1978-09-07 | 1980-03-15 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7661415B2 (en) | 2004-09-28 | 2010-02-16 | T.Rad Co., Ltd. | EGR cooler |
| US7669645B2 (en) | 2004-09-28 | 2010-03-02 | T. Rad Co., Ltd. | Heat exchanger |
| US7694728B2 (en) | 2004-09-28 | 2010-04-13 | T. Rad Co., Ltd. | Heat exchanger |
| US7854255B2 (en) | 2004-09-28 | 2010-12-21 | T. Rad Co., Ltd. | Heat exchanger |
| KR100862982B1 (en) | 2007-09-19 | 2008-10-13 | 서기철 | Waste heat recovery system |
| JP2020518719A (en) * | 2017-04-24 | 2020-06-25 | ヘラー・エレクトロライザー・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツングＨｏｅｌｌｅｒ Ｅｌｅｃｔｒｏｌｙｚｅｒ ＧｍｂＨ | Method of operating water electrolysis device |
| US11384442B2 (en) | 2017-04-24 | 2022-07-12 | Hoeller Electrolyzer Gmbh | Method for operating a water electrolysis device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH08121703A (en) | Waste heat recovery apparatus | |
| JPS60147097A (en) | Heat exchanger for waste heat recovery | |
| CN106439777A (en) | Water replenishing and preheating system for back-pressure steam turbine | |
| JPS6134335A (en) | Waste heat utilization system for engine and absorption-type water heating/cooling unit | |
| CA1278684C (en) | Method and apparatus for heating a large building | |
| KR101801490B1 (en) | Heating device using solar heat extra heat source | |
| CN106090974A (en) | A kind of low potential energy flue gas heating system | |
| KR100379855B1 (en) | Absorption heat pump apparatus of complex type using thermal waters | |
| JP3524939B2 (en) | Exhaust-reburn combined cycle power plant | |
| JPH04158174A (en) | Heating and cooling system with heat pump | |
| JPH0554921U (en) | Cold / hot water supply device | |
| SU1307165A2 (en) | Air conditioning system with recovering heat power | |
| JPH0355752B2 (en) | ||
| JPH0737078Y2 (en) | Air conditioning equipment | |
| JPH11153318A (en) | Flue gas processing apparatus | |
| JPH0257835A (en) | Cooling and heating apparatus | |
| JPS60235A (en) | Room heating and hot-water supplying device utilizing internal-combustion engine | |
| KR20220111560A (en) | Steam generation system of nuclear reactor | |
| JPH0134049Y2 (en) | ||
| US3631920A (en) | Changeover-type regenerative heat-exchange apparatus | |
| JP2666832B2 (en) | Hot water heater | |
| JPS5840115B2 (en) | air cooling device | |
| JPH0490450A (en) | Heat/electricity combined supply device | |
| JPH035837Y2 (en) | ||
| RU2157894C2 (en) | Method for heat and power cogeneration at thermal power stations and high-efficiency power unit implementing it (design versions of high-efficiency power unit) |