WO2015146585A1 - Differential-pressure-design heat exchanger - Google Patents

Differential-pressure-design heat exchanger Download PDF

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Publication number
WO2015146585A1
WO2015146585A1 PCT/JP2015/057125 JP2015057125W WO2015146585A1 WO 2015146585 A1 WO2015146585 A1 WO 2015146585A1 JP 2015057125 W JP2015057125 W JP 2015057125W WO 2015146585 A1 WO2015146585 A1 WO 2015146585A1
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Prior art keywords
pressure
heat exchanger
differential pressure
differential
tube
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PCT/JP2015/057125
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French (fr)
Japanese (ja)
Inventor
雅登 松澤
真吾 渡辺
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三菱重工業株式会社
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Publication of WO2015146585A1 publication Critical patent/WO2015146585A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0236—Header boxes; End plates floating elements
    • F28F9/0239—Header boxes; End plates floating elements floating header boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/12—Safety or protection arrangements; Arrangements for preventing malfunction for preventing overpressure

Definitions

  • the present invention relates to a differential pressure design type heat exchanger.
  • a shell-and-tube heat exchanger as a self-heating type heat exchanger, and an initially introduced fluid (F 0 ) is first introduced from the outside into the body (shell) and then passes through the heat transfer tube (tube). Heat is exchanged with (F 2 ) and discharged as a fuselage discharge fluid (F 1 ).
  • the fuselage discharge fluid (F 1 ) discharged outside becomes, for example, a high-temperature exothermic fluid (F 2 ) introduced into the heat transfer tube by causing an exothermic reaction in a reaction device or the like.
  • a self-heat exchanging method in which heat is exchanged between the initially introduced fluid (F 0 ) introduced from the outside into the fuselage by introducing the exothermic fluid (F 2 ) whose temperature has increased into the heat transfer tube.
  • a pressure decrease ( ⁇ p) generated by passing through the reactor is designed as a predetermined pressure (for example, 2.0 MPa), and constitutes a high-pressure differential pressure design type heat exchanger.
  • Patent Document 1 Japanese Patent Document 1
  • the proposal of the prior art can cope with the response when the pressure exceeds the design pressure outside the heat exchanger, but it can respond when the abnormal pressure difference occurs inside the heat exchanger body. There is a problem that it is not possible.
  • an object of the present invention is to provide a heat exchanger of a differential pressure design type that can cope with an abnormal pressure difference inside the heat exchanger body.
  • a first invention of the present invention for solving the above-mentioned problems is a shell-and-tube heat exchanger of differential pressure design type in which a plurality of heat transfer tubes are housed in a body, When the differential pressure (P 2 -P 1 ) or (P 1 -P 2 ) between the pressure (P 1 ) and the pressure in the heat transfer tube (P 2 ) is equal to or higher than the predetermined pressure of the differential pressure design, There is provided a differential pressure design type heat exchanger characterized in that a pressure release member for releasing the pressure is provided.
  • the pressure release member is a fracture plate, the mirror plate or cylinder of the floating head that communicates the fracture plate with the inside of the heat transfer pipe and discharges the fluid in the pipe to the outside. It is in the heat exchanger of the differential pressure design type
  • the third invention is the differential pressure design type heat exchanger according to the second invention, wherein the fracture plate is a fracture plate that fractures in one direction or a fracture plate that fractures in both directions.
  • the pressure release member uses a part of the plurality of heat transfer tubes as a heat transfer tube of the pressure release tube, and a pressure resistance of the pressure release tube is set to a predetermined design pressure or less. It is a differential pressure design type heat exchanger characterized by
  • the pressure release member when a pressure higher than a predetermined differential pressure is generated, the pressure release member is provided. Damage to the vessel can be prevented.
  • FIG. 1 is a schematic diagram of a differential pressure design type heat exchanger according to a first embodiment.
  • FIG. 2 is a schematic diagram of a main part of the differential pressure design type heat exchanger according to the first embodiment.
  • FIG. 3 is a schematic diagram of a main part of a differential pressure design type heat exchanger according to a second embodiment.
  • FIG. 4 is a schematic diagram of a main part of a differential pressure design type heat exchanger according to a third embodiment.
  • FIG. 5 is a schematic diagram of a main part of a differential pressure design type heat exchanger according to a fourth embodiment.
  • FIG. 6 is a main part schematic diagram showing an example of damage of a differential pressure design type heat exchanger.
  • FIG. 1 is a schematic diagram of a differential pressure design type heat exchanger according to a first embodiment.
  • FIG. 2 is a schematic diagram of a main part of the differential pressure design type heat exchanger according to the first embodiment.
  • a differential pressure design type heat exchanger 10 ⁇ / b> A according to this embodiment includes a plurality of heat transfer tubes (tubes) 12 in a body (shell) 11, and a differential pressure design type shell.
  • An and tube heat exchanger in which the pressure difference (P 2 -P 1 ) or (P 1 -P 2 ) between the pressure (P 1 ) in the body 11 and the pressure (P 2 ) in the heat transfer tube 12 is A pressure release member is provided for releasing the pressure when the pressure becomes a predetermined pressure (for example, 2.0 MPa) or more (for example, 2.5 MPa) of the differential pressure design.
  • a differential pressure design type heat exchanger 10A of this embodiment is a shell and tube type heat exchanger, and an initially introduced fluid having a temperature (T 0 ) from the outside to a body (shell) 11 first.
  • F 0 is introduced, heat exchanged with the heat generation fluid F 2 at the temperature (T 2 ) passing through the heat transfer tube (tube) 12, and discharged as the body discharge fluid F 1 at the temperature (T 1 ).
  • the fuselage discharge fluid F 1 discharged to the outside becomes, for example, an exothermic fluid F 2 having a high temperature (T 2 ) introduced into the heat transfer tube 12 by causing an exothermic reaction in the reaction device 20.
  • the pressure decrease ( ⁇ p) generated by the reaction in the reaction apparatus 20 is designed as a predetermined pressure (for example, 2.0 MPa), and constitutes a high-pressure differential pressure design type heat exchanger.
  • the differential pressure design type heat exchanger 10A includes a fixed tube plate 13A and a floating tube plate 13B disposed in the body 11, and a plurality of heat transfer tubes 12 between them. (For example, 2000) are provided.
  • the body 11 is formed with an introduction portion 11a for introducing the initial introduction fluid F 0 and a discharge portion 11b for discharging the body discharge fluid F 1 .
  • the introduction head 15 for introducing the heat generation fluid F 2 on the fixed tube plate 13A side is provided with an introduction portion 15a.
  • a floating head 17 is provided in the discharge head 16 that discharges the heat transfer tube discharge fluid F 3 that has undergone heat exchange from the heat generating fluid F 2 on the floating tube plate 13B side and has become low temperature (T 3 ).
  • the floating head 17 is composed of a mirror portion 17a joined to the floating tube plate 13B on the base side, and a floating tube 17b that slides on the discharge portion 16a of the discharge head 16, and is freely movable according to the internal pressure situation. .
  • the pressure difference (P 2 -P 1 ) or (P 1 -P 2 ) between the pressure (P 1 ) in the body 11 and the pressure (P 2 ) in the heat transfer tube 12 is used.
  • a predetermined pressure for example, 2.0 MPa
  • FIG. 6 is a schematic diagram of the main part showing an example of the damage of the heat exchanger of the differential pressure design type.
  • the left side in the figure is a normal case before the problem occurs, and the right side in the figure is the differential pressure abnormality after the problem occurs. Occurs when damage occurs.
  • the fracture plate 21 when the fracture plate 21 is not provided inside, when the pressure (P 2 -P 1 )> design pressure is applied inside the heat exchanger, the floating tube plate 13B and the mirror portion Damage to the fracture portion X occurred at the joint with 17a.
  • the break plate 21 is activated when the pressure exceeds a predetermined design pressure. Therefore, the occurrence of internal damage can be avoided.
  • the floating tube plate 13B and the mirror portion 17a cannot be disassembled after being joined once by welding, even if foreign matter or the like exists in the discharge head 16 and a problem occurs in the floating, Although the opening inspection could not be performed, when a floating defect occurs, the internal reinspection can be performed by opening the broken plate 21 portion.
  • the breaking plate 21 may be a breaking plate that breaks in one direction or a breaking plate that breaks in both directions.
  • FIG. 3 is a schematic diagram of a main part of a differential pressure design type heat exchanger according to a second embodiment.
  • symbol is attached
  • fracture plates 21A and 21B that fracture in one direction are provided at two locations of the mirror portion 17a, and pressure from the body 11 side ( Two types of rupture plates that break according to the pressure in two directions, ie, when P 1 ) is high and when the pressure (P 2 ) on the heat transfer tube 12 side is high, are used.
  • the pressure can be released from the fracture plate 21A before (P 1 ⁇ P 2 )> design pressure inside the heat exchanger. Further, the pressure can be released from the fracture plate 21B before (P 2 ⁇ P 1 )> design pressure.
  • FIG. 4 is a schematic diagram of a main part of a differential pressure design type heat exchanger according to a third embodiment.
  • symbol is attached
  • the break plate 21 is installed as the mirror portion 17a.
  • the present invention is not limited to this, and the differential pressure design type heat exchanger 10C shown in FIG. Then, the fracture
  • the floating pipe 17b slides inside the discharge part 16a, it is necessary to provide in the position which does not have the sliding obstruction.
  • the breaking plate 21 may be a breaking plate that breaks in one direction or a breaking plate that breaks in both directions. Moreover, you may make it provide the fracture
  • FIG. 5 is a schematic diagram of a main part of a differential pressure design type heat exchanger according to a fourth embodiment.
  • the differential pressure design type heat exchanger 10 ⁇ / b> D of the fourth embodiment uses a pressure release pipe 22 as a pressure release member.
  • the pressure release tube 22 is set to a design pressure that breaks below the predetermined pressure (2.0 MPa).
  • the heat transfer tube of the pressure release tube 22 when there are 2000 heat transfer tubes 12 for normal heat exchange, a part (for example, 4 to 5) of them is used as the heat transfer tube of the pressure release tube 22 and the pressure resistance of the pressure release tube 22 is set to a predetermined design pressure. By making it breakable as described below, it is possible to cope with an abnormal pressure difference inside the heat exchanger.
  • the broken pressure release pipe 22 can be heat exchanged again by keeping the end of the broken pressure release pipe 22 outside the tube plates 13A and 13B.

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  • 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

This differential-pressure-design heat exchanger (10A) is a differential-pressure-design shell-and-tube heat exchanger that is made by housing a plurality of heat-transfer tubes (tubes) (12) inside a body (shell) (11), the heat exchanger comprising a breaking plate (21) which is a pressure release member that releases pressure when the pressure difference (P2-P1) or (P1-P2) between the pressure (P1) inside the body (11) and the pressure (P2) inside the heat-transfer tubes (12) becomes greater than or equal to a predetermined pressure (2.0 MPa) of the differential-pressure design (for example, the pressure difference reaches 2.5 MPa).

Description

差圧設計型の熱交換器Differential pressure design type heat exchanger
　本発明は、差圧設計型の熱交換器に関するものである。 The present invention relates to a differential pressure design type heat exchanger.
　例えば、自己発熱型の熱交換器として、シェルアンドチューブ型熱交換器があり、胴体（シェル）に先ず外部より初期導入流体（Ｆ0）を導入し、伝熱管(チューブ)を通過する発熱流体（Ｆ2）と熱交換させて、胴体排出流体（Ｆ1）として排出される。この外部に排出された胴体排出流体（Ｆ1）は、例えば反応装置等において発熱反応を生じさせることで、伝熱管内に導入する高温の発熱流体（Ｆ2）となる。この温度上昇した発熱流体（Ｆ2）を伝熱管内部に導入させることで、外部より胴体内に導入される初期導入流体（Ｆ0）を熱交換させる自己熱交換方法がある。
　ここで、反応装置を通過することで生じる圧力減少（Δｐ）分が所定圧（例えば２．０ＭＰａ）として設計されており、高圧系の差圧設計型の熱交換器を構成している。 For example, there is a shell-and-tube heat exchanger as a self-heating type heat exchanger, and an initially introduced fluid (F 0 ) is first introduced from the outside into the body (shell) and then passes through the heat transfer tube (tube). Heat is exchanged with (F 2 ) and discharged as a fuselage discharge fluid (F 1 ). The fuselage discharge fluid (F 1 ) discharged outside becomes, for example, a high-temperature exothermic fluid (F 2 ) introduced into the heat transfer tube by causing an exothermic reaction in a reaction device or the like. There is a self-heat exchanging method in which heat is exchanged between the initially introduced fluid (F 0 ) introduced from the outside into the fuselage by introducing the exothermic fluid (F 2 ) whose temperature has increased into the heat transfer tube.
Here, a pressure decrease (Δp) generated by passing through the reactor is designed as a predetermined pressure (for example, 2.0 MPa), and constitutes a high-pressure differential pressure design type heat exchanger.
　ここで、差圧設計以下の圧力の場合には、胴体に配した伝熱管の損傷は無いものの、所定設計差圧以上となった際には、伝熱管の接続部において、破断部が発生するという問題がある。 Here, in the case of the pressure below the differential pressure design, there is no damage to the heat transfer tubes arranged on the fuselage, but when the pressure exceeds the predetermined design differential pressure, a fracture occurs at the connection portion of the heat transfer tubes. There is a problem.
　そこで、従来においては、差圧異常がある場合、熱交換器の外部の流体ラインにおいて、流体の流れを制御することで対応していた（特許文献１）。 Therefore, conventionally, when there is a differential pressure abnormality, it has been dealt with by controlling the flow of fluid in the fluid line outside the heat exchanger (Patent Document 1).
特開平８－６１８７０号公報JP-A-8-61870
　しかしながら、従来技術の提案では、外部に設置するため、流体流れを制御する手段の設置には、そのための設置ラインが必要となる、という問題がある。 However, in the proposal of the prior art, since it is installed outside, there is a problem that the installation line for that purpose is necessary for the installation of the means for controlling the fluid flow.
　また、従来技術の提案では、熱交換器の外部での設計圧以上となった際の対応には対処できるものの、熱交換器本体内部における差圧異常が発生した場合には、対応することができない、という問題がある。 In addition, the proposal of the prior art can cope with the response when the pressure exceeds the design pressure outside the heat exchanger, but it can respond when the abnormal pressure difference occurs inside the heat exchanger body. There is a problem that it is not possible.
　よって、熱交換器本体内部での差圧異常が発生した場合に、損傷を回避することができる差圧設計型の熱交換器の出現が切望されている。 Therefore, the appearance of a heat exchanger of a differential pressure design type capable of avoiding damage when a differential pressure abnormality occurs inside the heat exchanger body is eagerly desired.
　本発明は、前記問題に鑑み、熱交換器本体内部での差圧異常が発生した場合に、対応できる差圧設計型の熱交換器を提供することを課題とする。 In view of the above problems, an object of the present invention is to provide a heat exchanger of a differential pressure design type that can cope with an abnormal pressure difference inside the heat exchanger body.
　上述した課題を解決するための本発明の第１の発明は、胴体内に複数本の伝熱管を収めてなり、差圧設計型のシェルアンドチューブ型熱交換器であって、前記胴体内の圧力（Ｐ1）と前記伝熱管内の圧力（Ｐ2）との差圧（Ｐ2－Ｐ1）又は（Ｐ1－Ｐ2）が、差圧設計の所定圧以上になった際、圧力を解放する圧力解放部材を設けてなることを特徴とする差圧設計型の熱交換器にある。 A first invention of the present invention for solving the above-mentioned problems is a shell-and-tube heat exchanger of differential pressure design type in which a plurality of heat transfer tubes are housed in a body, When the differential pressure (P 2 -P 1 ) or (P 1 -P 2 ) between the pressure (P 1 ) and the pressure in the heat transfer tube (P 2 ) is equal to or higher than the predetermined pressure of the differential pressure design, There is provided a differential pressure design type heat exchanger characterized in that a pressure release member for releasing the pressure is provided.
　第２の発明は、第１の発明において、前記圧力解放部材が、破断板であると共に、前記破断板を、伝熱管内と連通し、外部へ管内流体を排出するフローティングヘッドの鏡部又は円筒部のいずれか一方に設けたことを特徴とする差圧設計型の熱交換器にある。 According to a second invention, in the first invention, the pressure release member is a fracture plate, the mirror plate or cylinder of the floating head that communicates the fracture plate with the inside of the heat transfer pipe and discharges the fluid in the pipe to the outside. It is in the heat exchanger of the differential pressure design type | mold characterized by providing in either one of the parts.
　第３の発明は、第２の発明において、破断板が一方向に破断する破断板又は双方向に破断する破断板であることを特徴とする差圧設計型の熱交換器にある。 The third invention is the differential pressure design type heat exchanger according to the second invention, wherein the fracture plate is a fracture plate that fractures in one direction or a fracture plate that fractures in both directions.
　第４の発明は、第１の発明において、前記圧力解放部材が、複数の伝熱管の一部を圧力解放管の伝熱管とすると共に、前記圧力解放管の耐圧を所定設計圧以下とすることを特徴とする差圧設計型の熱交換器にある。 According to a fourth invention, in the first invention, the pressure release member uses a part of the plurality of heat transfer tubes as a heat transfer tube of the pressure release tube, and a pressure resistance of the pressure release tube is set to a predetermined design pressure or less. It is a differential pressure design type heat exchanger characterized by
　本発明によれば、差圧設計型の熱交換器において、所定差圧以上の圧力が発生した場合、圧力解放部材を設けているので、この圧力解放部材が圧力を解放することで、熱交換器の損傷を防止することができる。 According to the present invention, in the heat exchanger of the differential pressure design type, when a pressure higher than a predetermined differential pressure is generated, the pressure release member is provided. Damage to the vessel can be prevented.
図１は、実施例１に係る差圧設計型の熱交換器の概略図である。1 is a schematic diagram of a differential pressure design type heat exchanger according to a first embodiment. 図２は、実施例１に係る差圧設計型の熱交換器の要部概略図である。FIG. 2 is a schematic diagram of a main part of the differential pressure design type heat exchanger according to the first embodiment. 図３は、実施例２に係る差圧設計型の熱交換器の要部概略図である。FIG. 3 is a schematic diagram of a main part of a differential pressure design type heat exchanger according to a second embodiment. 図４は、実施例３に係る差圧設計型の熱交換器の要部概略図である。FIG. 4 is a schematic diagram of a main part of a differential pressure design type heat exchanger according to a third embodiment. 図５は、実施例４に係る差圧設計型の熱交換器の要部概略図である。FIG. 5 is a schematic diagram of a main part of a differential pressure design type heat exchanger according to a fourth embodiment. 図６は、差圧設計型の熱交換器の損傷の一例を示す要部概略図である。FIG. 6 is a main part schematic diagram showing an example of damage of a differential pressure design type heat exchanger.
　以下に添付図面を参照して、本発明の好適な実施例を詳細に説明する。なお、この実施例により本発明が限定されるものではなく、また、実施例が複数ある場合には、各実施例を組み合わせて構成するものも含むものである。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, this invention is not limited by this Example, Moreover, when there exists multiple Example, what comprises combining each Example is also included.
　図１は、実施例１に係る差圧設計型の熱交換器の概略図である。図２は、実施例１に係る差圧設計型の熱交換器の要部概略図である。
　図１に示すように、本実施例に係る差圧設計型の熱交換器１０Ａは、胴体（シェル）１１内に複数本の伝熱管（チューブ）１２を収めてなり、差圧設計型のシェルアンドチューブ型熱交換器であって、胴体１１内の圧力（Ｐ1）と伝熱管１２内の圧力（Ｐ2）との差圧（Ｐ2－Ｐ1）又は（Ｐ1－Ｐ2）が、差圧設計の所定圧（例えば２．０ＭＰａ）以上（例えば２．５ＭＰａ）になった際、圧力を解放する圧力解放部材を設けてなるものである。 1 is a schematic diagram of a differential pressure design type heat exchanger according to a first embodiment. FIG. 2 is a schematic diagram of a main part of the differential pressure design type heat exchanger according to the first embodiment.
As shown in FIG. 1, a differential pressure design type heat exchanger 10 </ b> A according to this embodiment includes a plurality of heat transfer tubes (tubes) 12 in a body (shell) 11, and a differential pressure design type shell. An and tube heat exchanger, in which the pressure difference (P 2 -P 1 ) or (P 1 -P 2 ) between the pressure (P 1 ) in the body 11 and the pressure (P 2 ) in the heat transfer tube 12 is A pressure release member is provided for releasing the pressure when the pressure becomes a predetermined pressure (for example, 2.0 MPa) or more (for example, 2.5 MPa) of the differential pressure design.
　本実施例の差圧設計型の熱交換器１０Ａは、図１に示すように、シェルアンドチューブ型熱交換器であり、胴体（シェル）１１に先ず外部より温度（Ｔ0）の初期導入流体Ｆ0を導入し、伝熱管(チューブ)１２を通過する温度（Ｔ2）の発熱流体Ｆ2と熱交換させて、温度（Ｔ1）の胴体排出流体Ｆ1として排出される。この外部に排出された胴体排出流体Ｆ1は、例えば反応装置２０において発熱反応を生じさせることで、伝熱管１２内に導入する高温の温度（Ｔ2）の発熱流体Ｆ2となる。この温度上昇した発熱流体Ｆ2を、伝熱管１２内部に導入させることで、外部より胴体内に導入される温度（Ｔ0）の初期の導入流体Ｆ0を熱交換させる自己熱交換を行っている。ここで、反応装置２０での反応により生じる圧力減少（Δｐ）分が所定圧（例えば２．０ＭＰａ）として設計されており、高圧系の差圧設計型の熱交換器を構成している。 As shown in FIG. 1, a differential pressure design type heat exchanger 10A of this embodiment is a shell and tube type heat exchanger, and an initially introduced fluid having a temperature (T 0 ) from the outside to a body (shell) 11 first. F 0 is introduced, heat exchanged with the heat generation fluid F 2 at the temperature (T 2 ) passing through the heat transfer tube (tube) 12, and discharged as the body discharge fluid F 1 at the temperature (T 1 ). The fuselage discharge fluid F 1 discharged to the outside becomes, for example, an exothermic fluid F 2 having a high temperature (T 2 ) introduced into the heat transfer tube 12 by causing an exothermic reaction in the reaction device 20. By introducing the heat-generating fluid F 2 whose temperature has been increased into the heat transfer tube 12, self heat exchange is performed to exchange heat with the initial introduced fluid F 0 at the temperature (T 0 ) introduced from the outside into the fuselage. Yes. Here, the pressure decrease (Δp) generated by the reaction in the reaction apparatus 20 is designed as a predetermined pressure (for example, 2.0 MPa), and constitutes a high-pressure differential pressure design type heat exchanger.
　また、差圧設計型の熱交換器１０Ａは、図１に示すように、胴体１１内には固定管板１３Ａと遊動管板１３Ｂとが配設され、両者の間に伝熱管１２が複数本（例えば２０００本）設けられている。胴体１１には初期の導入流体Ｆ0を導入する導入部１１ａと、胴体排出流体Ｆ1を排出する排出部１１ｂとが形成されている。
　また、固定管板１３Ａ側の発熱流体Ｆ2を導入する導入ヘッド１５には導入部１５ａが設けられている。 In addition, as shown in FIG. 1, the differential pressure design type heat exchanger 10A includes a fixed tube plate 13A and a floating tube plate 13B disposed in the body 11, and a plurality of heat transfer tubes 12 between them. (For example, 2000) are provided. The body 11 is formed with an introduction portion 11a for introducing the initial introduction fluid F 0 and a discharge portion 11b for discharging the body discharge fluid F 1 .
The introduction head 15 for introducing the heat generation fluid F 2 on the fixed tube plate 13A side is provided with an introduction portion 15a.
　また、遊動管板１３Ｂ側の発熱流体Ｆ2から熱交換されて低温（Ｔ3）となった伝熱管排出流体Ｆ3を排出する排出ヘッド１６内には、遊動ヘッド１７が設けられている。
　この遊動ヘッド１７は遊動管板１３Ｂと基部側で接合された鏡部１７ａと排出ヘッド１６の排出部１６ａと摺動する遊動管１７ｂとから構成され、内部の圧力状況に応じて遊動自在としている。 In addition, a floating head 17 is provided in the discharge head 16 that discharges the heat transfer tube discharge fluid F 3 that has undergone heat exchange from the heat generating fluid F 2 on the floating tube plate 13B side and has become low temperature (T 3 ).
The floating head 17 is composed of a mirror portion 17a joined to the floating tube plate 13B on the base side, and a floating tube 17b that slides on the discharge portion 16a of the discharge head 16, and is freely movable according to the internal pressure situation. .
　そして、本実施例では、圧力解放部材として胴体１１内の圧力（Ｐ1）と伝熱管１２内の圧力（Ｐ2）との差圧（Ｐ2－Ｐ1）又は（Ｐ1－Ｐ2）が、差圧設計の所定圧（例えば２．０ＭＰａ）以上の例えば２．５ＭＰａになった際、圧力を解放する破断板２１を、遊動ヘッド１７の鏡部１７ａに設けている。
　そして、所定圧以上の圧力が発生した場合、破断板２１が破断することで、熱交換器の損傷を防止している。 In this embodiment, as a pressure release member, the pressure difference (P 2 -P 1 ) or (P 1 -P 2 ) between the pressure (P 1 ) in the body 11 and the pressure (P 2 ) in the heat transfer tube 12 is used. However, when the pressure becomes a predetermined pressure (for example, 2.0 MPa) or higher, for example, 2.5 MPa, a breaker plate 21 that releases the pressure is provided in the mirror portion 17 a of the floating head 17.
And when the pressure more than predetermined pressure generate | occur | produces, the failure | damage of a heat exchanger is prevented because the fracture | rupture board 21 fractures | ruptures.
　図６は、差圧設計型の熱交換器の損傷の一例を示す要部概略図であり、図中左側は問題発生前の通常の場合であり、図中右側は問題発生後の差圧異常が発生して損傷が発生した場合である。
　図６に示すように、内部に破断板２１を設けていない場合には、熱交換器の内部において、圧力（Ｐ2－Ｐ1）＞設計圧がかかった場合、遊動管板１３Ｂと鏡部１７ａとの継ぎ部において破断部Ｘの損傷が発生した。 FIG. 6 is a schematic diagram of the main part showing an example of the damage of the heat exchanger of the differential pressure design type. The left side in the figure is a normal case before the problem occurs, and the right side in the figure is the differential pressure abnormality after the problem occurs. Occurs when damage occurs.
As shown in FIG. 6, when the fracture plate 21 is not provided inside, when the pressure (P 2 -P 1 )> design pressure is applied inside the heat exchanger, the floating tube plate 13B and the mirror portion Damage to the fracture portion X occurred at the joint with 17a.
　これに対し、本実施例のように、差圧設計型の熱交換器１０Ａの内部の鏡部１７ａに破断板２１を設けることで、所定設計圧以上となった際に、破断板２１が作動するので、内部の損傷の発生を回避することができる。 On the other hand, by providing the break plate 21 in the mirror portion 17a inside the differential pressure design type heat exchanger 10A as in this embodiment, the break plate 21 is activated when the pressure exceeds a predetermined design pressure. Therefore, the occurrence of internal damage can be avoided.
　また、従来は、遊動管板１３Ｂと鏡部１７ａとは一度溶接による接合をした後は、分解できないので、排出ヘッド１６内に仮に異物等が存在して、遊動に不具合が発生した場合でも、開放点検できなかったが、遊動不具合が発生した場合、破断板２１部分を開放することで、内部の再点検を実施することができる。 Further, conventionally, since the floating tube plate 13B and the mirror portion 17a cannot be disassembled after being joined once by welding, even if foreign matter or the like exists in the discharge head 16 and a problem occurs in the floating, Although the opening inspection could not be performed, when a floating defect occurs, the internal reinspection can be performed by opening the broken plate 21 portion.
　また、破断板２１としては、一方向に破断する破断板であっても、双方向に破断する破断板であってもよい。 Also, the breaking plate 21 may be a breaking plate that breaks in one direction or a breaking plate that breaks in both directions.
　次に、本発明の実施例２に係る差圧設計型の熱交換器について、図３を参照して説明する。図３は、実施例２に係る差圧設計型の熱交換器の要部概略図である。なお、実施例１と同様の部材については、同一符号を付してその説明は省略する。 Next, a differential pressure design type heat exchanger according to Embodiment 2 of the present invention will be described with reference to FIG. FIG. 3 is a schematic diagram of a main part of a differential pressure design type heat exchanger according to a second embodiment. In addition, about the member similar to Example 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.
　図３に示すように、本実施例の差圧設計型の熱交換器１０Ｂでは一方向に破断する破断板２１Ａ、２１Ｂを鏡部１７ａの２か所に設けると共に、胴体１１側からの圧力（Ｐ1）が高い場合と、伝熱管１２側の圧力（Ｐ2）が高い場合との二方向の圧力に応じて破断する２種類の破断板としている。 As shown in FIG. 3, in the differential pressure design type heat exchanger 10B of the present embodiment, fracture plates 21A and 21B that fracture in one direction are provided at two locations of the mirror portion 17a, and pressure from the body 11 side ( Two types of rupture plates that break according to the pressure in two directions, ie, when P 1 ) is high and when the pressure (P 2 ) on the heat transfer tube 12 side is high, are used.
　すなわち、熱交換器の内部において、（Ｐ1－Ｐ2）＞設計圧となる前に、破断板２１Ａから圧を逃がすことができる。また、（Ｐ2－Ｐ1）＞設計圧となる前に、破断板２１Ｂから圧を逃がすことができる。 That is, the pressure can be released from the fracture plate 21A before (P 1 −P 2 )> design pressure inside the heat exchanger. Further, the pressure can be released from the fracture plate 21B before (P 2 −P 1 )> design pressure.
　これにより、いずれかの圧力が設計圧以上となった場合において、対応できる。
　特に、熱交換器の設置時や検査時において、通常は片圧をかけない差圧設計型の熱交換器に片圧をかけて、所定圧以上となる場合に、損傷を回避することができる。 Thereby, it is possible to cope with a case where any pressure becomes higher than the design pressure.
In particular, at the time of installation or inspection of a heat exchanger, damage can be avoided when a pressure is applied to a heat exchanger of a differential pressure design type that normally does not apply a single pressure and the pressure exceeds a predetermined pressure. .
　次に、本発明の実施例３に係る差圧設計型の熱交換器について、図４を参照して説明する。図４は、実施例３に係る差圧設計型の熱交換器の要部概略図である。なお、実施例１と同様の部材については、同一符号を付してその説明は省略する。 Next, a differential pressure design type heat exchanger according to Embodiment 3 of the present invention will be described with reference to FIG. FIG. 4 is a schematic diagram of a main part of a differential pressure design type heat exchanger according to a third embodiment. In addition, about the member similar to Example 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.
　実施例１の差圧設計型の熱交換器１０Ａでは、破断板２１の設置を鏡部１７ａとしたが、本発明はこれに限定されず、図４に示す差圧設計型の熱交換器１０Ｃでは、遊動管１７ｂに破断板２１を設置するようにしている。
　なお、遊動管１７ｂは排出部１６ａの内側で摺動するので、その摺動阻害がない位置に設ける必要がある。 In the differential pressure design type heat exchanger 10A of the first embodiment, the break plate 21 is installed as the mirror portion 17a. However, the present invention is not limited to this, and the differential pressure design type heat exchanger 10C shown in FIG. Then, the fracture | rupture board 21 is installed in the floating pipe 17b.
In addition, since the floating pipe 17b slides inside the discharge part 16a, it is necessary to provide in the position which does not have the sliding obstruction.
　また、破断板２１としては、一方向に破断する破断板であっても、双方向に破断する破断板であってもよい。また、実施例２のように２方向の破断板２１Ａ、２１Ｂを設けるようにしてもよい。 Also, the breaking plate 21 may be a breaking plate that breaks in one direction or a breaking plate that breaks in both directions. Moreover, you may make it provide the fracture | rupture board 21A, 21B of 2 directions like Example 2. FIG.
　次に、本発明の実施例４に係る差圧設計型の熱交換器について、図５を参照して説明する。図５は、実施例４に係る差圧設計型の熱交換器の要部概略図である。なお、実施例１と同様の部材については、同一符号を付してその説明は省略する。
　実施例４の差圧設計型の熱交換器１０Ｄは、図５に示すように、圧力解放部材として圧力解放管２２を用いている。そして、通常の熱交換するための伝熱管１２を所定設計圧（２．１ＭＰａ）とする場合に、圧力解放管２２は、この所定圧以下（２．０ＭＰａ）で破断するような設計圧としている。 Next, a differential pressure design type heat exchanger according to Embodiment 4 of the present invention will be described with reference to FIG. FIG. 5 is a schematic diagram of a main part of a differential pressure design type heat exchanger according to a fourth embodiment. In addition, about the member similar to Example 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.
As shown in FIG. 5, the differential pressure design type heat exchanger 10 </ b> D of the fourth embodiment uses a pressure release pipe 22 as a pressure release member. When the heat transfer tube 12 for normal heat exchange is set to a predetermined design pressure (2.1 MPa), the pressure release tube 22 is set to a design pressure that breaks below the predetermined pressure (2.0 MPa). .
　通常の熱交換用の伝熱管１２は例えば２０００本ある場合、その一部（例えば４～５本）について、圧力解放管２２の伝熱管とすると共に、この圧力解放管２２の耐圧を所定設計圧以下とすることとして、破断可能とすることで、熱交換器内部での差圧異常に対応することができる。なお、破断した圧力解放管２２は、管板１３Ａ，１３Ｂの外部において、破断した圧力解放管２２の端部を目止めすることで、再度熱交換することができる。 For example, when there are 2000 heat transfer tubes 12 for normal heat exchange, a part (for example, 4 to 5) of them is used as the heat transfer tube of the pressure release tube 22 and the pressure resistance of the pressure release tube 22 is set to a predetermined design pressure. By making it breakable as described below, it is possible to cope with an abnormal pressure difference inside the heat exchanger. The broken pressure release pipe 22 can be heat exchanged again by keeping the end of the broken pressure release pipe 22 outside the tube plates 13A and 13B.
　１０Ａ～１０Ｄ　差圧設計型の熱交換器
　１１　胴体
　１２　伝熱管
　１３Ａ　固定管板
　１３Ｂ　遊動管板
　１５　導入ヘッド
　１５ａ　導入部
　１６　排出ヘッド
　１６ａ　排出部
　１７　遊動ヘッド
　１７ａ　鏡部
　１７ｂ　遊動管
　２０　反応装置
　２１、２１Ａ、２１Ｂ　破断板
　２２　圧力解放管　 10A to 10D differential pressure design type heat exchanger 11 body 12 heat transfer tube 13A fixed tube plate 13B idle tube plate 15 introduction head 15a introduction portion 16 discharge head 16a discharge portion 17 idle head 17a mirror portion 17b idle tube 20 reaction device 21, 21A, 21B Breaking plate 22 Pressure release pipe

Claims (4)

  1. 　胴体内に複数本の伝熱管を収めてなり、差圧設計型のシェルアンドチューブ型熱交換器であって、
    　前記胴体内の圧力（Ｐ1）と前記伝熱管内の圧力（Ｐ2）との差圧（Ｐ2－Ｐ1）又は（Ｐ1－Ｐ2）が、差圧設計の所定圧以上になった際、圧力を解放する圧力解放部材を設けてなることを特徴とする差圧設計型の熱交換器。     A shell-and-tube heat exchanger with a differential pressure design type that houses multiple heat transfer tubes in the fuselage,
    The differential pressure (P 2 -P 1 ) or (P 1 -P 2 ) between the pressure in the fuselage (P 1 ) and the pressure in the heat transfer tube (P 2 ) is equal to or higher than the predetermined pressure of the differential pressure design. A differential pressure design type heat exchanger, characterized in that a pressure release member for releasing the pressure is provided.
  2. 　請求項１において、
    　前記圧力解放部材が、破断板であると共に、
    　前記破断板を、伝熱管内と連通し、外部へ管内流体を排出するフローティングヘッドの鏡部又は円筒部のいずれか一方に設けたことを特徴とする差圧設計型の熱交換器。     In claim 1,
    The pressure release member is a fracture plate;
    A differential pressure design type heat exchanger characterized in that the fracture plate is provided in either the mirror part or the cylindrical part of a floating head which communicates with the inside of the heat transfer pipe and discharges the fluid in the pipe to the outside.
  3. 　請求項２において、
    　破断板が一方向に破断する破断板又は双方向に破断する破断板であることを特徴とする差圧設計型の熱交換器。     In claim 2,
    A differential pressure design type heat exchanger, wherein the fracture plate is a fracture plate that fractures in one direction or a fracture plate that fractures in both directions.
  4. 　請求項１において、
    　前記圧力解放部材が、複数の伝熱管の一部を圧力解放管の伝熱管とすると共に、前記圧力解放管の耐圧を所定設計圧以下とすることを特徴とする差圧設計型の熱交換器。     In claim 1,
    The pressure release member is a differential pressure design type heat exchanger characterized in that a part of the plurality of heat transfer tubes serves as a heat transfer tube of the pressure release tube, and the pressure release pressure of the pressure release tube is equal to or lower than a predetermined design pressure. .
PCT/JP2015/057125 2014-03-27 2015-03-11 Differential-pressure-design heat exchanger WO2015146585A1 (en)

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JP2017156025A (en) * 2016-03-02 2017-09-07 東京電力ホールディングス株式会社 Heat exchange system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167968A (en) * 1977-12-30 1979-09-18 Babcock-Brown Boveri Reaktor Gmbh Pressure vessel
US5113928A (en) * 1989-07-10 1992-05-19 Thermal Transfer Products, Ltd. Heat exchanger with fluid pressure relief means
JP2002525552A (en) * 1998-09-24 2002-08-13 サーク アビエイション リミテッド Heat exchanger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167968A (en) * 1977-12-30 1979-09-18 Babcock-Brown Boveri Reaktor Gmbh Pressure vessel
US5113928A (en) * 1989-07-10 1992-05-19 Thermal Transfer Products, Ltd. Heat exchanger with fluid pressure relief means
JP2002525552A (en) * 1998-09-24 2002-08-13 サーク アビエイション リミテッド Heat exchanger

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