JPS62112991A - Heat exchanger and operation thereof - Google Patents
Heat exchanger and operation thereofInfo
- Publication number
- JPS62112991A JPS62112991A JP25292385A JP25292385A JPS62112991A JP S62112991 A JPS62112991 A JP S62112991A JP 25292385 A JP25292385 A JP 25292385A JP 25292385 A JP25292385 A JP 25292385A JP S62112991 A JPS62112991 A JP S62112991A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heat exchanger
- medium
- heat medium
- pump
- 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.)
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- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的１
Δ乳五Δ孔肛傾１
本発明は、分離型熱交換器を該熱交換器の運転条件に対
応して、熱媒循環型熱交換方式、またはヒートパイプ型
熱交換方式に変換する熱交換器およびその運転方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Objective of the Invention 1 Δ Milk 5 Δ Hole Anal Tilt 1 The present invention provides a separate heat exchanger with a heating medium circulation type heat exchange method, a heating medium circulation type heat exchange method, The present invention also relates to a heat exchanger that converts to a heat pipe type heat exchange system and a method of operating the same.
え木悲皮１
分離型熱交換器として、熱媒を循環ポンプで強制的に循
環する熱媒循環型交換器と、熱媒を自己の蒸発および凝
縮によって自然に循環するヒートパイプ型熱交換器とが
ある。Ekihiki 1 Separate heat exchangers include a heat medium circulation type exchanger that forcibly circulates the heat medium with a circulation pump, and a heat pipe type heat exchanger that naturally circulates the heat medium through its own evaporation and condensation. There is.
免一だ邂 しようとする
熱媒循環型熱交換器においては、熱交換器に熱４一
媒の循環ポンプを常に運転していなければならないとい
う不便がある。In a heat medium circulation type heat exchanger that is intended to be used as a heat exchanger, there is an inconvenience in that a circulation pump for the heat medium must be constantly operated in the heat exchanger.
ヒートパイプ型熱交換器においては、低負荷運転中に、
高低温両流体間の熱交換量がプラントが必要とする熱交
換量に不足するという熱効率の低下した状態が一時的に
発生するという不便があり、さらに、該熱交換器の新設
または定期検査後の冷開状態よりの起動時、または、系
統内の気体部の圧力が大気圧近辺以下にある運転中に、
該熱交換器の系統内に滞留する非凝縮がスを排除するた
め、抽気式エゼクタ−を付設し、多くの抽気エネルギー
を必要とするという不便があって、該熱交換器の運転操
作が簡便でない。In heat pipe type heat exchangers, during low load operation,
There is the inconvenience of a temporary state of reduced thermal efficiency in which the amount of heat exchange between both high and low temperature fluids is insufficient for the amount of heat exchange required by the plant, and furthermore, there is an inconvenience that occurs after the new installation or periodic inspection of the heat exchanger. When starting from a cold open state, or during operation when the pressure of the gas section in the system is around atmospheric pressure or lower,
In order to eliminate the non-condensable gas that accumulates in the heat exchanger system, a bleed ejector is attached, which is inconvenient because it requires a lot of bleed energy, and the operation of the heat exchanger is simple. Not.
これ等の問題点を解消して、高い熱効率を有し、しかも
非凝縮が大の排除の容易な熱交換器の運転手段の出現が
要請されている。There is a need for a means for operating a heat exchanger that solves these problems, has high thermal efficiency, and can easily eliminate non-condensation.
本発明は、これ等の要１１ｆｌｌこ応えるためになされ
たもので、その目的とする所は、熱媒循環型熱交換器が
系統内を満液運転することによって、別途に非凝縮ガス
の排除手段を要することなく、かつ、冷間状態よりの起
動時における低負荷運転中の熱効率が良いという利点と
、ヒートパイプ型熱交換器が熱交換時に熱媒の循環ポン
プを必要としないという利点とを併用することによって
、分離型熱交換器をその運転条件の変化に対応して、熱
媒循環型熱交換方式、または、ヒートパイプ型熱交換方
式に変換する運転手段を提供することにある。The present invention has been made to meet these 11 full requirements, and its purpose is to separately eliminate non-condensable gas by operating the heat medium circulation type heat exchanger in a system full of liquid. The heat pipe type heat exchanger has the advantage of not requiring any additional means and has good thermal efficiency during low load operation when starting from a cold state, and the advantage that the heat pipe type heat exchanger does not require a heat medium circulation pump during heat exchange. It is an object of the present invention to provide an operating means for converting a separation type heat exchanger into a heat medium circulation type heat exchange method or a heat pipe type heat exchange method in response to changes in the operating conditions by using the method in combination.
［発明の構成１
１！Ｗ犀バを するための手 と
常用負荷運転状態では主としてヒートパイプ型熱交換方
式として運転されるように設計された分離型熱交換器の
熱媒が循環する系統内に熱媒が内蔵されていない状態で
、熱媒の循環系統外に配設されで、熱媒が貯蔵されてい
る熱媒タンクから常温の熱媒または熱媒の循環系統外に
配設された予熱器を経由して予熱された熱媒を、系統外
にあって熱媒を輸送する輸送配管経路に装備された輸送
ポンプを運転することによって、系統内の低部位好まし
くは吸熱々交換装置（以後吸熱部と称する）の最低部位
より系統内へ送入する。[Configuration of the invention 1 1! A heat medium is built into the system in which the heat medium circulates in a separate heat exchanger designed to be operated primarily as a heat pipe type heat exchange system under normal load operating conditions. If the heating medium is not in use, the heating medium is stored in a heating medium tank that is installed outside the heating medium circulation system, and is preheated via a room temperature heating medium or a preheater installed outside the heating medium circulation system. By operating a transport pump installed in a transport piping route that transports the heat medium outside the system, the heat medium is transferred to a lower part of the system, preferably a heat exchanger (hereinafter referred to as a heat absorption section). It is sent into the system from the lowest point.
系統内が熱媒で満液されて、系統内の最高部位好ましく
は放熱々交換装置（以後放熱部と称する）の最高部位の
大気放出口より、熱媒が浴出すれば、系統内の非凝縮ガ
スが系統外に排除されたことを示すものであるから、輸
送ポンプを停止し、大気放出口を閉鎖する。If the system is filled with heat medium and the heat medium is released from the atmosphere outlet at the highest point in the system, preferably the highest point of the heat exchanger (hereinafter referred to as heat radiator), the non-heating medium in the system will be released. This indicates that the condensed gas has been removed from the system, so stop the transport pump and close the atmospheric outlet.
次に、系統内の熱媒を、熱媒を循環する連絡管に接続さ
れたバイパス管路イー１循環ポンプの運転によって循環
し、熱交換用高低温両流体をそれぞれ吸熱部および放熱
部に流通させることによって、分離型熱交換器を熱媒循
環型熱交換方式として運転する。Next, the heat medium in the system is circulated by the operation of the bypass pipe E1 circulation pump connected to the communication pipe that circulates the heat medium, and both high and low temperature fluids for heat exchange are distributed to the heat absorption part and the heat radiation part. By doing so, the separation type heat exchanger is operated as a heat medium circulation type heat exchange system.
熱媒循環型熱交換方式で運転中に、分離型交換器が冷間
状態よりの起動時にＩ；ける低負荷運転状態を脱し、該
熱交換器をビー１パイプ型変換方式で運転しても、熱効
率の低ドが発生しない常用負荷運転状態に近づけば、循
環ポンプを停止し、系統内を循環していた熱媒を輸送ポ
ンプの運転によって、系統内の低部位好ましくは吸熱部
の最低部位より系統外にあって熱、媒を輸送する輸送配
管経路を通じて系統外へ抜き出して、熱媒タンクへ返還
し、系統内の熱媒の液面を一定の水準まで降下せしめ、
輸送ポンプを停止することによって、分離型熱交換器を
ヒートパイプ型熱交換方式として運転する。Even if the separate type exchanger exits the low-load operating state, which occurs when starting from a cold state, while operating in the heat medium circulation type heat exchange method, and the heat exchanger is operated in the B-1 pipe type conversion method. When the normal load operating state is approached, where low thermal efficiency does not occur, the circulation pump is stopped and the heat medium that was circulating in the system is transferred to a low part of the system, preferably the lowest part of the heat absorption part. The heat medium is extracted from the system through a transport piping route that is outside the system and transports heat and medium, and is returned to the heat medium tank to lower the liquid level of the heat medium in the system to a certain level.
By stopping the transport pump, the separation type heat exchanger is operated as a heat pipe type heat exchange system.
分離型熱交換器の熱媒の循環する系統内に熱媒が一定の
水準で内蔵され、かつ、系統内の気体部の圧力が大気圧
近辺以下にあり、該熱交換器をヒートパイプ型熱交換方
式として運転している状態で、放熱部の上部に非凝縮が
スが滞留していることを放熱部に接続されている複数の
温度検知器によって検出すれば、熱媒タンクから、常温
の熱媒または予熱された熱媒を輸送ポンプを運転するこ
とによって、系統内の低部位好ましくは吸熱部の最低部
位より系統内へ送入する。The heat medium is built in at a certain level in the system in which the heat medium circulates in the separation type heat exchanger, and the pressure of the gas part in the system is below atmospheric pressure, and the heat exchanger is used as a heat pipe type heat exchanger. If the multiple temperature sensors connected to the heat dissipation section detect that non-condensed gas has accumulated in the upper part of the heat dissipation section when operating as an exchange method, the heat medium tank will release room-temperature gas. By operating a transport pump, the heating medium or preheated heating medium is introduced into the system from a lower part of the system, preferably from the lowest part of the heat absorption section.
系統内の熱媒が増加して、放熱部に接続された連成計が
大気圧以上の圧力を示すようになれば、系統内の最高部
位好ましくは放熱部の最高部位の大気放出口を開き、大
気放出口より、気相または／および液相の熱媒が放出さ
れるようになれば、−〇−
系統内の非凝縮ガスが系統外に排除されたことを示すも
のであるから、大気放出口を閉鎖する。If the amount of heat medium in the system increases and the compound gauge connected to the heat radiator shows a pressure higher than atmospheric pressure, open the atmospheric release port at the highest point in the system, preferably at the highest point of the heat radiator. If gas phase and/or liquid phase heating medium is released from the atmosphere discharge port, it indicates that the non-condensable gas in the system has been removed from the system. Close the outlet.
次に、高低温両流体間の熱交換量がプラントが必要とす
る熱交換量に不足するという熱効率の低下した状態にあ
れば、系統内が満液状態となったことを確認後、輸送ポ
ンプを停止し、系統内の熱媒を循環ポンプを運転するこ
とによって循環し、分離型熱交換器を熱媒循環型熱交換
方式として運転する。熱効率が回復すれば、既に述べた
と同一の手段に従って、系統内の熱媒を系統外へ抜き出
すことによって、該熱交換器を熱媒循環型熱交換方式か
ら変換してヒートパイプ型熱交換方式として運転する。Next, if the heat exchange amount between the high and low temperature fluids is insufficient for the heat exchange amount required by the plant, and the thermal efficiency is reduced, after confirming that the system is full of liquid, the transfer pump is stopped, the heat medium in the system is circulated by operating the circulation pump, and the separation type heat exchanger is operated as a heat medium circulation type heat exchange system. Once the thermal efficiency is restored, the heat exchanger can be converted from a heat medium circulation type heat exchange system to a heat pipe type heat exchange system by extracting the heat medium in the system to the outside of the system using the same method as described above. drive.
また、系統内が熱効率の低下した状態になっていなけれ
ば、既に述べた大気放出口の閉鎖操作に連続して、停止
していた輸送ポンプを再度運転することによって、熱媒
を抜き出し、系統内の熱媒の液面を一定の水準まで降下
せしめ、輸送ポンプを停止することにＪ：って、直ちに
分離型熱交換器を非凝縮ガス排除前のヒートパイプ型熱
交換方式へ復帰せしめて運転する。In addition, if the thermal efficiency within the system is not in a state where the thermal efficiency has decreased, the heating medium can be extracted from the system by restarting the stopped transport pump in succession to the above-mentioned operation to close the air outlet. The liquid level of the heating medium in J: was lowered to a certain level, and the transport pump was stopped.Then, the separation type heat exchanger was immediately returned to the heat pipe type heat exchange method before non-condensable gas was removed, and operation was started. do.
尚、大気放出出口より系統外に放出された気液混合体は
、大気放出口に接続された気液分離器で分離され、気体
は大気中に放出され、液体は降液管を通じて熱媒タンク
に返還される。The gas-liquid mixture discharged outside the system from the atmosphere discharge outlet is separated by a gas-liquid separator connected to the atmosphere discharge outlet, the gas is discharged into the atmosphere, and the liquid is sent to the heat medium tank through the downcomer pipe. will be returned to.
Ｘ１且
以下、本発明の実施例について図面を参照しなから説明
する。X1 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図は熱媒循環型熱交換方式またはヒートパイプ型熱交換
方式として運転する場合の分離型熱交換器の７０−を示
す図である。The figure shows a separate heat exchanger 70- when operated as a heat medium circulation type heat exchange system or a heat pipe type heat exchange system.
分離型熱交換器の運転条件に対応して、熱媒循環型熱交
換方式とヒートパイプ型熱交換方式との相互間で行う運
転方式を変換する手段について、実施例をあげる。An example will be given of means for converting the operating method between the heat medium circulation heat exchange method and the heat pipe heat exchange method in accordance with the operating conditions of the separation type heat exchanger.
実施例１
分離型熱交換器の新設・定期検査後等の冷間状態より、
該熱交換器を運転状態に入れる場合には、吸熱部１、放
熱部２、両部間を連結して熱媒を循環する連絡管３およ
びバイパス管路４付循環ポンプ５よりなる熱媒の循環系
統内は、全て空気で充満された状態にある。尚、熱媒の
循環系統内には、系統内に温情する非凝縮ガスが熱媒に
よって押された場合、滞留場所から移動できないような
いわゆる袋小路的な空間は存在しない。Example 1 From the cold state after new installation and periodic inspection of a separate heat exchanger,
When the heat exchanger is put into operation, a heating medium consisting of a heat absorption part 1, a heat radiation part 2, a communication pipe 3 that connects the two parts to circulate the heat medium, and a circulation pump 5 with a bypass pipe line 4 is used. The entire circulation system is filled with air. It should be noted that in the heating medium circulation system, there is no so-called dead-end space where, when warm non-condensable gas in the system is pushed by the heating medium, it cannot be moved from the place where it stays.
系統内に充満している空気を完全に系統外に排除するた
め、分離型熱交換器の吸熱部１の最低部ンプ９を運転す
ることによって、熱媒タンク１０４ｊｂ ｎａｆ）＊Ｗ
ｔ ｊｉ％ａＪＭＭへ９９−１・”１１“７１゜内を満
たしなから一！−昇し、一方系統内に充満していた空気
は押し出されて該熱交換器の放熱部２の最高部位に接続
された放出弁１１より気液分離器１２を通って大気放出
’［３より大気中に放出される。熱媒の水準が放熱部２
の最高部位に達し、放出弁１１より熱媒が放出されるよ
うになると、輸送ポンプ９を停止にし、弁６．７．８お
よび放出弁１１を閉鎖する。In order to completely remove the air filling the system from the system, by operating the lowest pump 9 of the heat absorption section 1 of the separate heat exchanger, the heat medium tank 104jb naf)*W
t ji%aJMM to 99-1・”11”If it doesn’t meet 71 degrees, it’s one! - On the other hand, the air filling the system is pushed out and released into the atmosphere through the gas-liquid separator 12 from the release valve 11 connected to the highest part of the heat radiating part 2 of the heat exchanger. released into the atmosphere. The level of heat medium is at heat radiation part 2
When the temperature reaches the highest point and the heat medium starts to be released from the release valve 11, the transport pump 9 is stopped and the valves 6.7.8 and the release valve 11 are closed.
尚、放出弁１１より放出された熱媒は気液分離器１２に
接続された降液管１４を降下して熱媒タンク１０に返還
される。The heating medium discharged from the discharge valve 11 descends through a downcomer pipe 14 connected to the gas-liquid separator 12 and is returned to the heating medium tank 10.
次に、弁１６．１７を開き、循環ポンプ５を運転し、バ
イパス管路４の弁１５を閉鎖して、系統内の熱媒を循環
せしめ、吸熱部１に矢印１８の如く高温流体を流通し、
放熱部２に矢印１９の如く低温流体と流通することによ
って、分離型熱交換器を起動時における低負荷運転中は
熱媒循環型熱交換方式として、高低温両流体間の熱交換
を行う。Next, the valves 16 and 17 are opened, the circulation pump 5 is operated, and the valve 15 of the bypass pipe 4 is closed to circulate the heat medium in the system, and the high temperature fluid is circulated through the heat absorption part 1 as shown by the arrow 18. death,
By flowing the low temperature fluid through the heat radiation part 2 as shown by the arrow 19, heat exchange between the high and low temperature fluids is performed as a heat medium circulation heat exchange system during low load operation at the time of startup of the separation type heat exchanger.
１５を開き循環ポンプ５を停止し、弁１６．１７を閉鎖
し、熱媒を系統外に抜き出す輸送配管経路の弁６，２０
．２１を開いて、輸送ポンプ９を運転することによって
、系統内から熱媒を熱媒タンク１０へ抜き出し、系統内
の熱媒を減少し、一定の水準まで下降したことを図示し
ない公知の手段で確認すれば、輸送ポンプ９を停止し、
弁６，２０゜２１を閉鎖することによって、該熱交換器
をヒードパイブ型熱交換方式として運転する。15 to stop the circulation pump 5, close the valves 16 and 17, and extract the heating medium out of the system.
．． 21 is opened and the transport pump 9 is operated, the heat medium is extracted from the system to the heat medium tank 10, the heat medium in the system is reduced, and it is determined by known means (not shown) that the heat medium in the system has decreased to a certain level. If confirmed, stop the transport pump 9,
By closing the valves 6, 20 and 21, the heat exchanger is operated as a heat pipe type heat exchange system.
実施例２
分離型熱交換器をヒートパイプ型熱交換方式として運転
後、該熱交換器を１（期に運転休止し、長期休止後の冷
間状態より、再度運転状態に入れる場合には、弁６，７
．１１を開き、輸送ポンプ９を運転することによって、
熱媒を系統内へ送入し、系統内の熱媒を増加し、系統内
が熱媒で満液したことを図示しない公知の手段で確認す
れば、輸送ポンプ９を停止し、弁６，７．８を１２１頻
し、弁１６゜１７を開き、循環ポンプ５を運転し、弁１
５を閉；、゛＼
、、）：、＋ｊ分離型熱交換器の熱負荷が増加して、該
熱交換−′器をヒートパイプ型熱交換方式で運転しても
、熱効率の低下が発生しない常用負荷に近づけば、弁１
５を開き、循環ポンプ５を停止し、弁１６．１７を閉鎖
し、弁６，２０．２１を開いて、輸送ポンプ９を運転す
ることによって、系統内から熱媒を熱媒タンク１０へ抜
き出し、系統内の熱媒を減少し、一定の水準に下降した
ことを確認すれば、輸送ポンプ９を停止し、弁６，２０
．２１を閉鎖することによって、該熱交換器をヒートパ
イプ型熱交換方式として運転する。Example 2 After operating a separation type heat exchanger as a heat pipe type heat exchange method, when the heat exchanger is shut down in 1 (period) and put into operation again from a cold state after a long-term suspension, valve 6,7
．． 11 and operating the transport pump 9,
When the heating medium is introduced into the system, the amount of heating medium in the system is increased, and it is confirmed by known means (not shown) that the system is filled with the heating medium, the transport pump 9 is stopped and the valves 6, 7.8 121 times, open valves 16 and 17, operate circulation pump 5, and open valve 1.
Close 5;, ゛＼ ,, ):, +j The heat load on the separate heat exchanger increases, and even if the heat exchanger is operated using the heat pipe type heat exchange method, a decrease in thermal efficiency occurs. If the normal load is close to the normal load, valve 1
5, the circulation pump 5 is stopped, the valves 16.17 are closed, the valves 6 and 20.21 are opened, and the transport pump 9 is operated, thereby extracting the heat medium from the system to the heat medium tank 10. , after reducing the heat medium in the system and confirming that it has fallen to a certain level, the transport pump 9 is stopped and the valves 6 and 20 are closed.
．． By closing 21, the heat exchanger is operated as a heat pipe type heat exchange system.
実施例３
分離型熱交換器をヒートパイプ型熱交換方式として運転
中に、該熱交換器の系統内壁材より化学変化により遊離
してきた水素が系統内の高所の放熱部２の上部に順次滞
留してくると、吸熱部の凝縮効率を低下させ、引いては
該熱交換器の熱効率を低下させる。Example 3 During operation of a separation type heat exchanger as a heat pipe type heat exchange method, hydrogen liberated from the system inner wall material of the heat exchanger due to a chemical change is sequentially transferred to the upper part of the heat dissipation section 2 located at a high place in the system. When it accumulates, it reduces the condensation efficiency of the heat absorption section, which in turn reduces the thermal efficiency of the heat exchanger.
系統内の気体部の圧力が大気圧近辺以下にある分離型熱
交換器の運転中に、放熱部２の上部に滞留した非凝縮ガ
スを完全に系統外に排除するため、放熱部２に接続され
た複数の温度検知器２２が非凝縮ガスが滞留していると
ころを示すようになれば、弁６，７．８を開き、輸送ポ
ンプ９を運転することによって、熱媒タンク１０から熱
媒を系統内へ送入する。熱媒は系統内を満たしなから上
昇し、かつ、系統内の圧力を−１−昇する。非凝縮ガス
の滞・留部に接続された連成ｄ１２３が大気圧以上の圧
力を示すようになれば、放出弁１１を開き、非凝縮ガス
を気液分離器１２を通じて大気放出管１３より大気中に
放出し、気相または／および液相の熱媒が放出弁１１よ
り放出されるようになれば、放出弁１１を閉鎖する。Connected to the heat radiating part 2 in order to completely eliminate non-condensable gas that has accumulated in the upper part of the heat radiating part 2 from the system when the separate heat exchanger is operating when the pressure of the gas part in the system is near atmospheric pressure or lower. When the plurality of temperature sensors 22 indicate that non-condensable gas is accumulated, the heat medium is removed from the heat medium tank 10 by opening the valves 6, 7.8 and operating the transport pump 9. into the system. The heating medium rises from filling the system and raises the pressure within the system by -1-. When the coupled d123 connected to the non-condensable gas storage/retention section shows a pressure higher than atmospheric pressure, the discharge valve 11 is opened and the non-condensable gas is released into the atmosphere through the gas-liquid separator 12 through the atmospheric discharge pipe 13. Once the gas phase and/or liquid phase heating medium is released from the release valve 11, the release valve 11 is closed.
次に、分離型熱交換器の系統内が熱媒の送入によって適
冷され、高低温両流体間の熱交換量がプラントが必要と
する熱交換量に不足するという熱効率の低下が一時的に
発生した状態にあれば、系統内が満液状態となったこと
を確認後、輸送ポンプ９を停止し、弁６，７．８を閉鎖
し、弁１６．１７を開き、循環ポンプ５を運転し、弁１
５を閉鎖して、系統内の熱媒を循環することによって、
該熱交換器を熱媒循環型熱交換方式として運転する。Next, the inside of the separate heat exchanger system is appropriately cooled by feeding the heat medium, and the thermal efficiency temporarily decreases because the amount of heat exchange between the high and low temperature fluids is insufficient for the amount of heat exchange required by the plant. If this occurs, after confirming that the system is full of liquid, stop the transport pump 9, close the valves 6 and 7.8, open the valve 16.17, and turn on the circulation pump 5. drive, valve 1
By closing 5 and circulating the heat medium in the system,
The heat exchanger is operated as a heat medium circulation type heat exchange system.
また、分離型熱交換器の系統内が熱効率の低下した状態
になっていなければ、輸送ポンプ９を停止し、弁７，８
を閉鎖し、弁２０．２１を開き、次に輸送ポンプ９を再
起動することによって、系統内から熱媒を熱媒タンク１
０へ抜き出し、系統内の熱媒を減少し、一定の水準まで
下降せしめ、輸送ポンプ９を停止し、弁６，２０．２１
を閉鎖することによって、該熱交換器を熱媒循環型熱交
換方式として使用することなく、直ちに、元の運転状態
に復帰さすことによって、ヒートパイプ型熱交換方式と
して運転することも勿論可能である。In addition, if the system of the separation type heat exchanger is not in a state where the thermal efficiency has decreased, the transport pump 9 is stopped and the valves 7 and 8 are stopped.
The heat medium is removed from the system by closing the heat medium tank 1, opening the valve 20.21 and then restarting the transfer pump 9.
0, reduce the heat medium in the system, lower it to a certain level, stop the transport pump 9, and close the valves 6, 20, 21.
Of course, it is also possible to operate the heat exchanger as a heat pipe heat exchange system by immediately returning it to its original operating state without using it as a heat medium circulation heat exchange system. be.
実施例４
実施例３で述べた熱効率の低下した状態での分離型熱交
換器を熱媒循環型熱交換方式として運転中に、該熱交換
器の運転条件が常用負荷に近い状態に回復してくれば弁
１５を開き、循環ポンプ１８を停止し、弁１６，１７を
閉鎖し、弁６，２０゜２１を開いて、輸送ポンプ９を運
転することによって、系統内から熱媒を熱媒タンク１０
へ抜き出し、系統内の熱媒を減少し、一定の水準まで下
降したことを確認すれば、輸送ポンプ９を停止し、弁６
゜２０．２１を閉鎖することによって、該熱交換器をヒ
ートパイプ型熱交換方式として運転する。Example 4 While operating the separation type heat exchanger in a state where the thermal efficiency was reduced as described in Example 3 as a heat medium circulation type heat exchange method, the operating conditions of the heat exchanger were restored to a state close to the normal load. If so, the heat medium is removed from the system by opening the valve 15, stopping the circulation pump 18, closing the valves 16 and 17, opening the valves 6 and 20, and operating the transport pump 9. tank 10
After confirming that the heat medium in the system has decreased to a certain level, the transport pump 9 is stopped and the valve 6 is removed.
By closing 20.21, the heat exchanger is operated as a heat pipe type heat exchange system.
１０一
実施例５
分離型熱交換器の運転条（４が継続した高負荷状態で、
該熱交換器をヒートパイプ型熱交換方式として運転中に
、熱負荷が急変して低負荷運転状態となり、熱効率の低
下が発生すれば、弁６，７．８を開き、輸送ポンプ９を
運転することによって、熱媒タンク１０から熱媒を系統
内へ送入する。系統内が満液状態となったことを確認後
、輸送ポンプ９を停止し、弁Ｇ、７．８を閉鎖し、弁１
．６．１７を開き、循環ポンプ５を運転し、弁１５を閉
鎖して、系統内の熱媒を循環することによって、該熱交
換器を熱媒循環型熱交換方式として運転する。101 Example 5 Operation conditions of a separate heat exchanger (4 under continuous high load condition,
When the heat exchanger is operated as a heat pipe type heat exchange system, if the heat load suddenly changes and the operation becomes a low load operation state, and a decrease in thermal efficiency occurs, the valves 6 and 7.8 are opened and the transport pump 9 is operated. By doing so, the heat medium is sent into the system from the heat medium tank 10. After confirming that the system is full of liquid, stop the transport pump 9, close valves G and 7.8, and close valve 1.
．． 6.17 is opened, the circulation pump 5 is operated, and the valve 15 is closed to circulate the heat medium in the system, thereby operating the heat exchanger as a heat medium circulation type heat exchange system.
分離型熱交換器の低下していた熱効率が回復してくれば
、弁１５を開き、循環ポンプ１８を停止し、弁１６．１
７を閉鎖し、弁６，２０．２１を開いて、輸送ポンプ９
を運転することによって、系統内から熱媒を熱媒タンク
１０へ抜き出し、系統内の熱媒を減少し、一定の水準ま
で下降したことを確認すれば、輸送ポンプ９を停止し、
弁６，２０゜２１を閉鎖することによって、該熱交換器
をヒ−ドパイブ型熱交換方式として運転する。When the decreased thermal efficiency of the separate heat exchanger is restored, valve 15 is opened, circulation pump 18 is stopped, and valve 16.1 is closed.
7 is closed and valves 6, 20.21 are opened and the transport pump 9
By operating the system, the heat medium is extracted from the system to the heat medium tank 10, the heat medium in the system is reduced, and when it is confirmed that the amount has decreased to a certain level, the transport pump 9 is stopped,
By closing the valves 6, 20 and 21, the heat exchanger is operated as a heat pipe type heat exchange system.
以上の各実施例について、同熱交換方式間の運転変換手
段を説明したが、さらに、それぞれの実施例において、
輸送ポンプ９と循環ポンプ５を、それぞれのポンプに接
続される配管経路とそれに付属する弁を適切に配設し、
かつ切換えることによって、輸送ポンプを循環ポンプと
して、また、循環ポンプを輸送ポンプとして使用するこ
と、または、輸送と循環との両機能を有する１台のポン
プに置き換えることが可能であり、同熱交換方式の変換
手段を手動または自動で実施することが可能であり、熱
媒を予熱する予熱器２４を分離型熱交換器の熱媒の循環
の系統外に設置するのであれば、熱媒タンク１０内への
設置に限定するものではなく、系統内に送入される熱媒
は予熱されても予熱されなくてもよい。For each of the above embodiments, the operation conversion means between the same heat exchange systems has been explained, but furthermore, in each embodiment,
The transport pump 9 and the circulation pump 5 are appropriately arranged with piping routes connected to each pump and valves attached thereto,
By switching, the transport pump can be used as a circulation pump, the circulation pump can be used as a transport pump, or it can be replaced with a single pump that has both transport and circulation functions. It is possible to implement the conversion means manually or automatically, and if the preheater 24 for preheating the heat medium is installed outside the heat medium circulation system of the separate heat exchanger, the heat medium tank 10 The heating medium introduced into the system may or may not be preheated.
［発明の効果］
本発明によれば、分離型熱交換器の新設・定期検査・長
期運転休止後等の冷間状態の起動時における低負荷運転
中、または、運転中の熱効率の低下した状態において、
該熱交換器の熱交換方式をヒートバイブ型熱交換方式か
ら熱媒循環型熱交換方式に変換することにＪ：って（；
）られる熱媒循環型熱交換方式の有する低負荷運転中の
熱効率の良いという利点と、ヒートパイプ型熱交換方式
の有する常用負荷運転中の熱媒循環型熱交換方式よりも
熱効率が良く、かつ、循環ポンプによる循環手段を要し
ないという利点とを＋Ｂ−の分離型熱交換器に兼備せし
めて、変動する運転条件に対して、該熱交換器をそれぞ
れの熱交換方式のみで運転する場合よりも熱効率を向−
１−することができ、抽気エゼクタ−のような非凝縮ガ
ス排除手段を別途に要することなく、熱媒循環型熱交換
方式を採用することのみによって、大気近辺以下の圧力
の系統内の非凝縮ガスを排除ぜしめて、非凝縮ガス排除
手段を簡便化することかでト、１台のポンプに輸送ポン
プと循環ポンプとの両Ｆｐｉ能を持たせることができ、
これ等の総合的効果から、熱交換手段の経済化を計るこ
とが可能となる。[Effects of the Invention] According to the present invention, during low load operation at the time of starting up in a cold state such as when a separate heat exchanger is newly installed, periodically inspected, or after a long-term suspension of operation, or a state where thermal efficiency is reduced during operation. In,
I decided to convert the heat exchange method of the heat exchanger from a heat-vib type heat exchange system to a heat medium circulation type heat exchange system.
) has the advantage that the heat medium circulation type heat exchange method has good thermal efficiency during low load operation, and the heat pipe type heat exchange method has the advantage that it has better thermal efficiency than the heat medium circulation type heat exchange method during normal load operation, and By combining the advantages of not requiring a circulation means using a circulation pump with the +B- separation type heat exchanger, it is possible to handle fluctuating operating conditions better than when the heat exchanger is operated using only each heat exchange method. also improves thermal efficiency.
1- It is possible to eliminate non-condensable gas in a system with a pressure below near atmospheric pressure by simply adopting a heating medium circulation type heat exchange method without requiring a separate non-condensable gas removal means such as a bleed ejector. By eliminating the gas and simplifying the non-condensable gas elimination means, one pump can have both FPI functions as a transport pump and a circulation pump.
From these comprehensive effects, it becomes possible to make the heat exchange means economical.
さらに、分離型熱交換器の系統内へ送入する熱＝１９＝
媒を、系統外において、該熱交換器の運転状態に適合し
た温度に予熱器にて予熱することによって、予熱されず
に送入される場合に発生する該熱交換器の熱効率の一時
的低下を低減または防止し、熱効率の一時的低下に伴な
って発生する非定常状態によって、関連するプラントに
与える不具合な影響をも低減または防止することが可能
となる。Furthermore, by preheating the heat = 19= medium to be sent into the system of the separate heat exchanger outside the system to a temperature suitable for the operating condition of the heat exchanger, it is possible to prevent the heat from being preheated. It reduces or prevents the temporary decrease in the thermal efficiency of the heat exchanger that occurs when the heat exchanger is heated, and also prevents the unsteady state that occurs due to the temporary decrease in thermal efficiency from affecting related plants. It becomes possible to reduce or prevent this.
図は本発明の分離型熱交換器の７０−を示す図である。
尚、図中の主要部の符号は次の通りである。
１・・・吸熱部、２・・・放熱部、３・・・連絡管、４
・・・バイパス管路、５・・・循環ポンプ、６，７．８
・・・弁、９・・・輸送ポンプ、１０・・・熱媒タンク
、１１・・・放出弁、１２・・・気液分離器、１３・・
・大気放出管、１４・・・降液管、１５゜１６．１７・
・・弁、１８．１９・・・矢印、２０．２１・・・弁、
２２・・・温度検知器、２３・・・連成計、２４・・・
予熱器。The figure is a diagram showing 70- of the separation type heat exchanger of the present invention. Incidentally, the symbols of the main parts in the figure are as follows. 1... Heat absorption part, 2... Heat radiation part, 3... Communication pipe, 4
...Bypass pipe line, 5...Circulation pump, 6,7.8
... Valve, 9... Transport pump, 10... Heat medium tank, 11... Release valve, 12... Gas-liquid separator, 13...
・Atmospheric discharge pipe, 14...Downfall pipe, 15゜16.17・
...Valve, 18.19...Arrow, 20.21...Valve,
22...Temperature detector, 23...Compound meter, 24...
Preheater.
Claims (12)
結して熱媒を循環する連絡管とよりなる分離型の熱交換
器において、該熱交換器の運転条件に対応して、熱交換
方式を液相の熱媒を循環ポンプで循環する熱媒循環型熱
交換方式、または、気相と液相との熱媒を自然循環する
ヒートパイプ型熱交換方式に変換する装置を有すること
を特徴とする熱交換器。(1) In a separate heat exchanger consisting of a heat-absorbing cross-exchange device, a heat-radiating cross-exchange device, and a communication pipe that connects both devices and circulates a heat medium, depending on the operating conditions of the heat exchanger, It has a device that converts the heat exchange method to a heat medium circulation type heat exchange method in which a liquid phase heat medium is circulated by a circulation pump, or a heat pipe type heat exchange method in which a gas phase and liquid phase heat medium are naturally circulated. A heat exchanger characterized by:
換方式に変換する装置が、吸熱々交換装置に接続されて
いる熱媒の輸送配管経路、輸送ポンプ、熱媒タンクと、
放熱々交換装置に接続されている大気放出口、温度検知
器、連成計、気液分離器、と連絡管に接続されているバ
イパス管路付循環ポンプ、降液管であることを特徴とす
る前記特許請求の範囲第１項に記載の熱交換器。(2) A device for converting to a heat medium circulation type heat exchange system or a heat pipe type heat exchange system is connected to a heat transfer exchange device, which includes a heat medium transport piping route, a transport pump, and a heat medium tank;
It is characterized by an atmospheric discharge port, a temperature sensor, a compound gauge, a gas-liquid separator, which are connected to a heat exchanger, a circulation pump with a bypass pipe, and a downcomer pipe, which are connected to a communication pipe. A heat exchanger according to claim 1.
する両用のポンプであることを特徴とする前記特許請求
の範囲第１項または第２項に記載の熱交換器。(3) The heat exchanger according to claim 1 or 2, wherein the transport pump and the circulation pump are dual-purpose pumps having the functions of both pumps.
換方式に変換する装置が、分離型の熱交換器の熱媒の循
環系統外に配設されて、吸熱々交換装置に接続されてい
る熱媒を予熱する予熱器を有することを特徴とする前記
特許請求の範囲第１項または第３項に記載の熱交換器。(4) A device for converting to a heat medium circulation type heat exchange system or a heat pipe type heat exchange system is installed outside the heat medium circulation system of the separate heat exchanger and is connected to the heat exchanger. 4. The heat exchanger according to claim 1, further comprising a preheater for preheating a heating medium.
結して熱媒を循環する連絡管とよりなる分離型の熱交換
器において、該熱交換器の運転条件に対応して、熱交換
方式を液相の熱媒を循環ポンプで循環する熱媒循環型熱
交換方式、または、気相と液相との熱媒を自然循環する
ヒートパイプ型熱交換方式に変換することを特徴とする
熱交換器の運転方法。(5) In a separate heat exchanger consisting of a heat exchanger, a heat radiation exchanger, and a communication pipe that connects the two devices and circulates a heat medium, depending on the operating conditions of the heat exchanger, It is characterized by converting the heat exchange method to a heat medium circulation type heat exchange method in which a liquid phase heat medium is circulated by a circulation pump, or a heat pipe type heat exchange method in which a heat medium in a gas phase and a liquid phase is naturally circulated. How to operate a heat exchanger.
ない状態から、系統内に滞留する非凝縮ガスを系統内を
液相の熱媒で満液することによって系統外に排除し、該
熱交換器を熱媒循環型熱交換方式で運転した後、熱媒の
一部分を系統外に抜き出し、該熱交換器をヒートパイプ
型熱交換方式で運転することを特徴とする前記特許請求
の範囲第５項に記載の熱交換器の運転方法。(6) Since there is no heat medium built into the system of a separate heat exchanger, the non-condensable gas remaining in the system is removed from the system by filling the system with liquid phase heat medium. The above-mentioned patent is characterized in that after the heat exchanger is operated in a heat medium circulation type heat exchange system, a part of the heat medium is extracted from the system, and the heat exchanger is operated in a heat pipe type heat exchange system. A method of operating a heat exchanger according to claim 5.
内蔵され、長期に休止されている冷間状態から、系統内
に滞留する非凝縮ガスを系統内を液相の熱媒で満液する
ことによって系統外に排除し、該熱交換器を熱媒循環型
熱交換方式で運転した後、熱媒の一部分を系統外に抜き
出し、該熱交換器をヒートパイプ型熱交換方式で運転す
ることを特徴とする前記特許請求の範囲第５項に記載の
熱交換器の運転方法。(7) A heat medium is built into the system of a separate heat exchanger at a certain level, and from a cold state that has been stopped for a long time, the non-condensable gas that remains in the system is transferred to the liquid phase heat in the system. After the heat exchanger is operated in a heat medium circulation type heat exchange system, a part of the heat medium is extracted outside the system, and the heat exchanger is operated in a heat pipe type heat exchange system. 6. The method of operating a heat exchanger according to claim 5, characterized in that the heat exchanger is operated in accordance with the method described in claim 5.
期に休止されている冷間状態から該熱交換器を熱媒循環
型熱交換方式で運転した後、熱媒の一部分を系統外に抜
き出し、該熱交換器をヒートパイプ型熱交換方式で運転
することを特徴とする前記特許請求の範囲第５項に記載
の熱交換器の運転方法。(8) After the system of a separate heat exchanger is filled with heat medium and the heat exchanger is operated in a heat medium circulation type heat exchange system from a cold state that has been stopped for a long time, the heat medium is 6. The method of operating a heat exchanger according to claim 5, wherein a portion of the heat exchanger is extracted from the system and the heat exchanger is operated in a heat pipe type heat exchange system.
内蔵され、該熱交換器を系統内の気体部の圧力が大気圧
近辺以下で、ヒートパイプ型熱交換方式で運転されてい
る状態から系統内に滞留する非凝縮ガスを系統内を気相
または／および液相の熱媒で充満することによって系統
外に排除し、続いて系統内を液相の熱媒で満液し、該熱
交換器を熱媒循環型熱交換方式で運転した後、熱媒の一
部分を系統外に抜き出し、該熱交換器をヒートパイプ型
熱交換方式で運転することを特徴とする前記特許請求の
範囲第５項に記載の熱交換器の運転方法。(9) A heat medium is built-in at a certain level in the system of a separate heat exchanger, and the heat exchanger is operated using a heat pipe type heat exchange method when the pressure of the gas part in the system is below atmospheric pressure. The non-condensable gas remaining in the system is removed from the system by filling the system with a gas-phase and/or liquid-phase heating medium, and then the system is filled with a liquid-phase heating medium. After the heat exchanger is operated in a heat medium circulation type heat exchange system, a part of the heat medium is extracted from the system, and the heat exchanger is operated in a heat pipe type heat exchange system. A method for operating a heat exchanger according to claim 5.
て予熱された熱媒を輸送ポンプで系統内に送入すること
を特徴とする前記特許請求の範囲第５項乃至第９項に記
載の熱交換器の運転方法。(10) Claims 5 to 9 above characterized in that the heat medium preheated by a preheater located outside the system of the separate heat exchanger is sent into the system by a transport pump. How to operate the heat exchanger described.
または、循環ポンプを輸送ポンプとして、それぞれのポ
ンプを両用途に使用することを特徴とする前記特許請求
の範囲第５項乃至第１０項に記載の熱交換器の運転方法
。(11) The heat medium transport pump is used as a heat medium circulation pump,
Alternatively, the method for operating a heat exchanger according to any one of claims 5 to 10, characterized in that the circulation pump is used as a transport pump and each pump is used for both purposes.
循環ポンプとして使用することを特徴とする前記特許請
求の範囲第５項乃至第１０項に記載の熱交換器の運転方
法。(12) The method of operating a heat exchanger according to any one of claims 5 to 10, characterized in that one pump is used as a heat medium transport pump or a heat medium circulation pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25292385A JPS62112991A (en) | 1985-11-13 | 1985-11-13 | Heat exchanger and operation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25292385A JPS62112991A (en) | 1985-11-13 | 1985-11-13 | Heat exchanger and operation thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62112991A true JPS62112991A (en) | 1987-05-23 |
Family
ID=17244048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25292385A Pending JPS62112991A (en) | 1985-11-13 | 1985-11-13 | Heat exchanger and operation thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62112991A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011099511A (en) * | 2009-11-05 | 2011-05-19 | Takasago Thermal Eng Co Ltd | Hydrogen storage alloy tank system |
| JP2013113498A (en) * | 2011-11-29 | 2013-06-10 | Hitachi Appliances Inc | Air conditioner |
| WO2019123881A1 (en) * | 2017-12-22 | 2019-06-27 | 株式会社デンソー | Device temperature adjusting apparatus |
| JP2019113301A (en) * | 2017-12-22 | 2019-07-11 | 株式会社デンソー | Machine temperature adjusting device |
| JP2020106205A (en) * | 2018-12-27 | 2020-07-09 | 川崎重工業株式会社 | Heat transport system and transport machine |
-
1985
- 1985-11-13 JP JP25292385A patent/JPS62112991A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011099511A (en) * | 2009-11-05 | 2011-05-19 | Takasago Thermal Eng Co Ltd | Hydrogen storage alloy tank system |
| JP2013113498A (en) * | 2011-11-29 | 2013-06-10 | Hitachi Appliances Inc | Air conditioner |
| WO2019123881A1 (en) * | 2017-12-22 | 2019-06-27 | 株式会社デンソー | Device temperature adjusting apparatus |
| JP2019113301A (en) * | 2017-12-22 | 2019-07-11 | 株式会社デンソー | Machine temperature adjusting device |
| JP2020106205A (en) * | 2018-12-27 | 2020-07-09 | 川崎重工業株式会社 | Heat transport system and transport machine |
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