JP2013185770A - Heat exchanger - Google Patents

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JP2013185770A
JP2013185770A JP2012052093A JP2012052093A JP2013185770A JP 2013185770 A JP2013185770 A JP 2013185770A JP 2012052093 A JP2012052093 A JP 2012052093A JP 2012052093 A JP2012052093 A JP 2012052093A JP 2013185770 A JP2013185770 A JP 2013185770A
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heat medium
temperature heat
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transfer tube
partition plate
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JP5984438B2 (en
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Hiroshi Yamana
浩史 山名
Masakazu Nakagawa
政和 中川
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Osaka Gas Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a heat exchanger having a horizontal shell-and-tube structure, where a lower temperature heating medium being a temperature rise object may flow into the heat exchanger in a vapor-liquid mixed phase state, and the lower temperature heating medium is reliably vaporized in the heat exchanger, whereby the lower temperature heating medium sent out from the heat exchanger can be reliably in a vapor phase state.SOLUTION: A heating gas advection space part that is a space in an outer barrel 3 where a heating gas w flows in an advection space 50 of a lower temperature heating medium, includes a contact area expanding means 101 for expanding a contact area between the lower temperature heating medium c in a liquid phase state and the heating gas w.

Description

水平方向に延びる外胴と、前記外胴内に配置され高温熱媒体が内部を流れる複数の伝熱管からなる伝熱管群とを備え、高温熱媒体入口より受け入れた高温熱媒体が伝熱管群内を流れる状態で、外胴と伝熱管群との間に形成された低温熱媒体移流空間に流入される低温熱媒体を加温して加温ガスとして外部に放出するシェルアンドチューブ形に構成され、低温熱媒体移流空間に流入する低温熱媒体量に対応するガス量の加温ガスが外部に放出される構成で、低温熱媒体が気液混相状態で低温熱媒体移流空間に流入することがある熱交換器に関する。   An outer cylinder extending in the horizontal direction, and a heat transfer tube group including a plurality of heat transfer tubes disposed in the outer cylinder and through which the high temperature heat medium flows, and the high temperature heat medium received from the high temperature heat medium inlet is in the heat transfer tube group. It is configured in a shell and tube type that heats the low-temperature heat medium flowing into the low-temperature heat medium advection space formed between the outer cylinder and the heat transfer tube group and discharges it as a heated gas to the outside. The configuration is such that a heating gas having a gas amount corresponding to the amount of the low temperature heat medium flowing into the low temperature heat medium advection space is discharged to the outside, and the low temperature heat medium may flow into the low temperature heat medium advection space in a gas-liquid mixed phase state. It relates to a heat exchanger.

この種の熱交換器の一例としては、特許文献１に記載の加温器１１、特許文献２に記載のガス過熱用熱交換器１１がある。これら文献に開示の熱交換器は、蒸発器（気化器）により蒸発・気化された低温熱媒体を高温熱媒体により昇温する構造を有しており、構造上の問題や設置上の問題等により、横置きシェルアンドチューブ構造とされている。
即ち、水平方向に延びる外胴と、この外胴内に配置され高温熱媒体（海水）が内部を流れる複数の伝熱管からなる伝熱管群とを備え、高温熱媒体入口より受け入れた高温熱媒体（海水）が伝熱管群内を流れる状態で、外胴と伝熱管群との間に形成された低温熱媒体移流空間に流入される低温熱媒体（天然ガス）を加温して加温ガスとして外部に放出する。
従来型シェルアンドチューブ構造の熱交換器を、本願に対応して、図６に示した。 As an example of this type of heat exchanger, there are a heater 11 described in Patent Document 1 and a gas overheat heat exchanger 11 described in Patent Document 2. The heat exchangers disclosed in these documents have a structure in which the temperature of the low-temperature heat medium evaporated and vaporized by the evaporator (vaporizer) is raised by the high-temperature heat medium. Thus, a horizontal shell and tube structure is provided.
That is, a high-temperature heat medium received from a high-temperature heat medium inlet is provided with an outer cylinder that extends in the horizontal direction and a heat transfer tube group that is arranged in the outer cylinder and that includes a plurality of heat-transfer tubes through which the high-temperature heat medium (seawater) flows. (Seawater) flows through the heat transfer tube group, warming the low temperature heat medium (natural gas) flowing into the low temperature heat medium advection space formed between the outer body and the heat transfer tube group To the outside.
A conventional shell-and-tube heat exchanger is shown in FIG. 6 corresponding to the present application.

特開平８−２６９４６８号公報JP-A-8-269468 特開２００２−３０９２７６号公報JP 2002-309276 A

上記の設備は、液化天然ガス（ＬＮＧ）から気化天然ガス（ＮＧ）及び熱量調整された都市ガスを得るための設備であるが、一般的に気液混相状態にある或はほぼ気化された状態にある昇温対象の低温熱媒体を高温熱媒体により昇温する熱交換器にあっては、熱交換器の上流の運転状態が変化する、或は、周囲環境の温度条件等の変化によって、設計条件として予定される以上の液相状態にある低温熱媒体が本願の熱交換器に対応する加温器に流入することがある。
このような状態にあっては、その冷熱負荷が大きくなり、低温熱媒体が熱交換器出口から液相のまま送出される虞がある。このような異常状態が発生すると、熱交換器を含むシステム全体の運転状態が多大に影響を受け好ましくない。 The above equipment is equipment for obtaining vaporized natural gas (NG) and calorie-adjusted city gas from liquefied natural gas (LNG), but is generally in a gas-liquid mixed phase state or almost vaporized state. In the heat exchanger that raises the temperature of the low-temperature heat medium to be heated by the high-temperature heat medium, the operating state upstream of the heat exchanger changes, or the temperature condition of the surrounding environment changes, A low-temperature heat medium in a liquid phase state more than planned as a design condition may flow into a heater corresponding to the heat exchanger of the present application.
In such a state, the cooling load is increased, and the low-temperature heat medium may be sent out in the liquid phase from the heat exchanger outlet. When such an abnormal state occurs, the operation state of the entire system including the heat exchanger is greatly affected, which is not preferable.

本発明の目的は、横置きシェルアンドチューブ構造を有する熱交換器であって、昇温対象の低温熱媒体が、気液混相状態で熱交換器内に流入することがある熱交換器において、低温熱媒体の気化を確実に行い、熱交換器から送出される低温熱媒体を確実に気相の状態とすることができる熱交換器を得ることにある。   An object of the present invention is a heat exchanger having a horizontally placed shell and tube structure, in which a low temperature heat medium to be heated may flow into the heat exchanger in a gas-liquid mixed phase state. An object of the present invention is to obtain a heat exchanger capable of surely vaporizing a low-temperature heat medium and ensuring that the low-temperature heat medium sent from the heat exchanger is in a gas phase state.

上記目的を達成するための、
水平方向に延びる外胴と、前記外胴内に配置され高温熱媒体が内部を流れる複数の伝熱管からなる伝熱管群とを備え、高温熱媒体入口より受け入れた前記高温熱媒体が前記伝熱管群内を流れる状態で、前記外胴と前記伝熱管群との間に形成された低温熱媒体移流空間に流入される低温熱媒体を加温して加温ガスとして外部に放出するシェルアンドチューブ形に構成され、
前記低温熱媒体移流空間に流入する低温熱媒体量に対応するガス量の前記加温ガスが外部に放出される構成で、
前記低温熱媒体が気液混相状態で前記低温熱媒体移流空間に流入することがある熱交換器の特徴構成は、
前記低温熱媒体移流空間において加温ガスが流れる外胴内の空間である加温ガス移流空間部位に、液相状態にある前記低温熱媒体と前記加温ガスとの接触面積を拡大する接触面積拡大手段を備えたことにある。 To achieve the above purpose,
An outer cylinder extending in the horizontal direction; and a heat transfer tube group including a plurality of heat transfer tubes arranged in the outer cylinder and through which the high-temperature heat medium flows, wherein the high-temperature heat medium received from a high-temperature heat medium inlet is the heat transfer tube A shell-and-tube that heats a low-temperature heat medium flowing into a low-temperature heat medium advection space formed between the outer cylinder and the heat transfer tube group in a state of flowing in the group and discharges it as a heated gas to the outside. Composed in shape,
In the configuration in which the heated gas in a gas amount corresponding to the amount of the low temperature heat medium flowing into the low temperature heat medium advection space is released to the outside,
The characteristic configuration of the heat exchanger in which the low-temperature heat medium may flow into the low-temperature heat medium advection space in a gas-liquid mixed phase state,
A contact area that expands a contact area between the low-temperature heat medium and the heated gas in a liquid phase in a heated gas advection space portion that is a space in an outer trunk through which the heated gas flows in the low-temperature heat medium advection space. There is an enlargement means.

この熱交換器では、接触面積拡大手段が備えられることで、液相状態にある低温熱媒体と加温ガスとの接触機会が増大され、低温熱媒体液の気化（蒸発）を促すことができる。
結果、接触面積拡大手段を備えない従来型の熱交換器より、気化不足による液相状態にある低温熱媒体の放出が抑制され、熱交換器内において、低温熱媒体の気化を促進し、熱交換器から送出される低温熱媒体を確実に気相の状態とすることができる。 In this heat exchanger, the contact area expanding means is provided, so that the contact opportunity between the low-temperature heat medium and the heated gas in the liquid phase is increased, and the vaporization (evaporation) of the low-temperature heat medium liquid can be promoted. .
As a result, the release of the low-temperature heat medium in the liquid phase due to insufficient vaporization is suppressed from the conventional heat exchanger that does not include the contact area expansion means, and the vaporization of the low-temperature heat medium is promoted in the heat exchanger, The low-temperature heat medium delivered from the exchanger can be surely brought into a gas phase state.

この構成にあって、前記伝熱管に於ける前記高温熱媒体の移流下手側に、気相状態にある前記低温熱媒体を受け入れる第１低温熱媒体流入口を備え、
前記伝熱管に於ける前記高温熱媒体の移流上手側に、液相状態にある前記低温熱媒体を受け入れる第２低温熱媒体流入口を備え、
前記低温熱媒体移流空間を、前記伝熱管に於ける前記高温熱媒体の移流下手側から移流上手側に、前記低温熱媒体が移流する構成で、
前記第２低温熱媒体流入口の下部に、前記接触面積拡大手段を備えることが好ましい。 In this configuration, a first low-temperature heat medium inlet that receives the low-temperature heat medium in a gas phase is provided on the lower side of the transfer of the high-temperature heat medium in the heat transfer tube,
A second low-temperature heat medium inlet for receiving the low-temperature heat medium in a liquid phase on the upper side of the advection of the high-temperature heat medium in the heat transfer tube;
The low temperature heat medium advection space is configured such that the low temperature heat medium advects from the advancing lower side of the high temperature heat medium in the heat transfer tube to the upper side of the advancing.
It is preferable that the contact area expanding means is provided below the second low-temperature heat medium inlet.

このように構成しておくと、第１低温熱媒体流入口から受け入れた気相状態にある低温熱媒体は、高温熱媒体の移流下手側から移流上手側に移流するに従って昇温される。一方、第２低温熱媒体流入口から受け入れた液相状態にある低温熱媒体は、接触面積拡大手段により、液相状態にある低温熱媒体と加温ガスとの接触機会が増大され、低温熱媒体液の気化（蒸発）を促すことができる。結果、接触面積拡大手段を備えない従来型の熱交換器より、気化不足による液相状態にある低温熱媒体の放出が抑制され、熱交換器内において、低温熱媒体の気化を確実に行い、熱交換器から送出される低温熱媒体を確実に気相の状態とすることができる。   If comprised in this way, the temperature of the low-temperature heat medium in the gas phase received from the first low-temperature heat medium inlet will be raised as it moves from the lower advection side to the upper advection side of the high-temperature heat medium. On the other hand, in the low-temperature heat medium in the liquid phase received from the second low-temperature heat medium inlet, the contact area between the low-temperature heat medium in the liquid phase and the heated gas is increased by the contact area expanding means. The vaporization (evaporation) of the medium liquid can be promoted. As a result, the release of the low-temperature heat medium in the liquid phase due to insufficient vaporization is suppressed from the conventional heat exchanger that does not include the contact area expanding means, and the low-temperature heat medium is reliably vaporized in the heat exchanger, The low-temperature heat medium delivered from the heat exchanger can be reliably brought into a gas phase state.

一方、前記伝熱管に於ける前記高温熱媒体の移流下手側の上側部位に、気液混相状態にある前記低温熱媒体を受け入れる低温熱媒体流入口を備え、
前記伝熱管に於ける前記高温熱媒体の移流下手側の下側部位に、加温ガスを放出する加温ガス放出口を備えるとともに、
前記伝熱管に於ける前記高温熱媒体の移流下手側に設けられた管板から、前記伝熱管に於ける高温熱媒体の移流方向に沿って仕切り板が延設され、
前記低温熱媒体移流空間を、低温熱媒体流入口から流入した前記低温熱媒体が、前記仕切り板に沿って、その上側を伝熱管に於ける高温熱媒体の移流方向上手側に移動するとともに、仕切り板の端部と前記高温熱媒体の移流上手側に設けられた管板との間の上下方向連通路を介して下降移動し、前記仕切り板に沿って、その下側を伝熱管に於ける高温熱媒体の移流方向下手側に移動してするとともに加温ガス放出口に到達する構成で、
前記仕切り板の端部の下側に、前記接触面積拡大手段を備えた構成とすることも好ましい。 On the other hand, a low temperature heat medium inlet for receiving the low temperature heat medium in a gas-liquid mixed phase is provided in an upper portion of the heat transfer tube on the lower side of the advection of the high temperature heat medium.
A heating gas discharge port for discharging a heating gas is provided at a lower portion of the heat transfer tube in the lower side of the advection of the high-temperature heat medium, and
A partition plate extends from the tube plate provided on the lower side of the transfer of the high temperature heat medium in the heat transfer tube along the transfer direction of the high temperature heat medium in the heat transfer tube,
The low temperature heat medium flowing from the low temperature heat medium inlet through the low temperature heat medium advection space moves upward along the partition plate to the upper side of the high temperature heat medium in the heat transfer tube. It moves downward through a vertical communication path between the end of the partition plate and the tube plate provided on the upper side of the advancing flow of the high-temperature heat medium, and the lower side of the partition plate along the partition plate passes through the heat transfer tube. In the configuration that moves to the lower side of the advancing direction of the hot heat medium and reaches the heated gas discharge port,
It is also preferable that the contact area expanding means is provided below the end of the partition plate.

この構成では、低温熱媒体は、気液混相状態で熱交換器内に受け入れられ、気相側が仕切り板に沿って、高温熱媒体の移流上手側に移動する。一方、液相側は仕切り板に受止められ、その上側表面に液溜りを形成する。そして、仕切り板と高温熱媒体の移流上手側に設けられた管板との間に上下方向の空間が形成されているため、この空間部位を気相側は下降し、液相側は仕切り板の端部から滴下する。ここで、仕切り板の端部部位の下側に接触面積拡大手段を設けることで、低温熱媒体の気液の接触機会を増加させることが可能となり、低温熱媒体の気化（蒸発）を促進できる。そして、気化後の気相状態の低温熱媒体は、仕切り板の下側を加温ガス放出口に向けて流れ、この加温ガス放出口から放出される。
結果、接触面積拡大手段を備えない従来型の熱交換器より、気化不足による液相状態にある低温熱媒体の放出が抑制され、熱交換器内において、低温熱媒体の気化を確実に行い、熱交換器から送出される低温熱媒体を確実に気相の状態とすることができる。 In this configuration, the low temperature heat medium is received in the heat exchanger in a gas-liquid mixed phase state, and the gas phase side moves along the partition plate to the upper side of the high temperature heat medium advection. On the other hand, the liquid phase side is received by the partition plate and forms a liquid pool on the upper surface thereof. And since a space in the vertical direction is formed between the partition plate and the tube plate provided on the upper side of the advection of the high-temperature heat medium, the gas phase side descends from this space part, and the liquid phase side is the partition plate Drip from the end of the. Here, by providing the contact area enlarging means below the end portion of the partition plate, it becomes possible to increase the gas-liquid contact opportunity of the low-temperature heat medium, and the vaporization (evaporation) of the low-temperature heat medium can be promoted. . The vaporized low-temperature heat medium after vaporization flows below the partition plate toward the heated gas discharge port, and is discharged from the heated gas discharge port.
As a result, the release of the low-temperature heat medium in the liquid phase due to insufficient vaporization is suppressed from the conventional heat exchanger that does not include the contact area expanding means, and the low-temperature heat medium is reliably vaporized in the heat exchanger, The low-temperature heat medium delivered from the heat exchanger can be reliably brought into a gas phase state.

さらに、前記伝熱管に於ける前記高温熱媒体の移流下手側の上側部位に、気液混相状態にある前記低温熱媒体を受け入れる低温熱媒体流入口を備え、
前記伝熱管に於ける前記高温熱媒体の移流下手側の下側部位に、加温ガスを放出する加温ガス放出口を備えるとともに、
前記伝熱管に於ける前記高温熱媒体の移流下手側に設けられた管板から、前記伝熱管に於ける高温熱媒体の移流方向に沿って仕切り板が延設され、
前記低温熱媒体移流空間を、低温熱媒体流入口から流入した前記低温熱媒体が、前記仕切り板に沿って、その上側を伝熱管に於ける高温熱媒体の移流方向上手側に移動するとともに、仕切り板の端部と前記高温熱媒体の移流上手側に設けられた管板との間の上下方向連通路を介して下降移動し、前記仕切り板に沿って、その下側を伝熱管に於ける高温熱媒体の移流方向下手側に移動してするとともに加温ガス放出口に到達する構成で、
前記仕切り板の端部側部位に複数の貫通孔を設け、前記複数の貫通孔の下側に、前記接触面積拡大手段を備えることが好ましい。 Furthermore, a low-temperature heat medium inlet for receiving the low-temperature heat medium in a gas-liquid mixed phase is provided at an upper portion of the heat transfer tube on the lower side of the advection of the high-temperature heat medium.
A heating gas discharge port for discharging a heating gas is provided at a lower portion of the heat transfer tube in the lower side of the advection of the high-temperature heat medium, and
A partition plate extends from the tube plate provided on the lower side of the transfer of the high temperature heat medium in the heat transfer tube along the transfer direction of the high temperature heat medium in the heat transfer tube,
The low temperature heat medium flowing from the low temperature heat medium inlet through the low temperature heat medium advection space moves upward along the partition plate to the upper side of the high temperature heat medium in the heat transfer tube. It moves downward through a vertical communication path between the end of the partition plate and the tube plate provided on the upper side of the advancing flow of the high-temperature heat medium, and the lower side of the partition plate along the partition plate passes through the heat transfer tube. In the configuration that moves to the lower side of the advancing direction of the hot heat medium and reaches the heated gas discharge port,
It is preferable that a plurality of through holes are provided in an end portion side portion of the partition plate, and the contact area expanding means is provided below the plurality of through holes.

この構成の熱交換器も先に説明した例と同じく、仕切り板を備える。そして、その端部側部位に複数の貫通孔を備えることで、液相状態の低温熱媒体を複数の貫通孔を介して、接触面積拡大手段に導くことができる。従って、先の例のように、仕切り板の端部のみからの液の滴下を発生する場合より、分散状態を上げることが可能となる。そして、高い分散状態で、接触面積拡大手段で気相側と液相側との接触機会を上げて、気化（蒸発）を促すことができる。気化後の気相状態の低温熱媒体は、仕切り板の下側を加温ガス放出口に向けて流れ、この加温ガス放出口から放出される。
従って、接触面積拡大手段を備えない従来型の熱交換器より、気化不足による液相状態にある低温熱媒体の放出が抑制され、熱交換器内において、低温熱媒体の気化を確実に行い、熱交換器から送出される低温熱媒体を確実に気相の状態とすることができる。 The heat exchanger of this configuration is also provided with a partition plate as in the example described above. And by providing a some through-hole in the edge part side site | part, the low-temperature heat medium of a liquid phase state can be guide | induced to a contact area expansion means via a some through-hole. Therefore, as in the previous example, the dispersion state can be increased as compared with the case where the liquid is dropped only from the end portion of the partition plate. Then, in a highly dispersed state, the contact area enlarging means can increase the chance of contact between the gas phase side and the liquid phase side to promote vaporization (evaporation). The vaporized low-temperature heat medium after vaporization flows under the partition plate toward the heated gas discharge port, and is discharged from the heated gas discharge port.
Therefore, the release of the low-temperature heat medium in the liquid phase due to insufficient vaporization is suppressed from the conventional heat exchanger not provided with the contact area expanding means, and the low-temperature heat medium is surely vaporized in the heat exchanger, The low-temperature heat medium delivered from the heat exchanger can be reliably brought into a gas phase state.

これまで説明してきた接触面積拡大手段としては、液相状態の低温熱媒体を受け止め液面を形成する皿状部材からなり、当該皿状部材に上下方向の貫通孔が複数設けられている構成を採用することができる。
皿状部材により低温熱媒体の液を受け止めて、液面を形成して、簡単な構成で接触面積拡大手段を実現できる。 The contact area expanding means that has been described so far includes a plate-like member that receives a liquid-phase low-temperature heat medium and forms a liquid surface, and the plate-like member is provided with a plurality of vertical through holes. Can be adopted.
By receiving the liquid of the low-temperature heat medium with the dish-like member and forming the liquid surface, the contact area expanding means can be realized with a simple configuration.

ここで、複数の前記皿状部材が複数、上下方向に積層して構成され、皿状部材間に、加温ガスの流通路が形成されていることが好ましい。
この構成では、上側に設けられた皿状部材と下側に設けられた皿状部材との間に加温ガス流通路を形成することで、多層状態で、気液接触を実現できる。 Here, it is preferable that a plurality of the plate-shaped members are stacked in the vertical direction, and a flow path for the heated gas is formed between the plate-shaped members.
In this configuration, the gas-liquid contact can be realized in a multilayer state by forming the heated gas flow passage between the dish-like member provided on the upper side and the dish-like member provided on the lower side.

第１実施形態に係る熱交換器の構成を示す断面図。Sectional drawing which shows the structure of the heat exchanger which concerns on 1st Embodiment. 接触面積拡大手段を構成するパンチングプレートの構成を示す説明図。Explanatory drawing which shows the structure of the punching plate which comprises a contact area expansion means. 第２実施形態に係る熱交換器の構成を示す断面図。Sectional drawing which shows the structure of the heat exchanger which concerns on 2nd Embodiment. 第３実施形態に係る熱交換器の構成を示す断面図。Sectional drawing which shows the structure of the heat exchanger which concerns on 3rd Embodiment. 接触面積拡大手段の別構成例を示す説明図。Explanatory drawing which shows another structural example of a contact area expansion means. 従来型シェルアンドチューブ構造の熱交換器の模式図。The schematic diagram of the heat exchanger of the conventional shell and tube structure.

本願に係る熱交換器１００について、以下、図面を参照して説明する。
本願にあっては、第１実施形態、第２実施形態および第３実施形態を主に説明する。
ここで、第１実施形態は、本願の熱交換器１００とは別個に低温熱媒体ｃの気液分離を行う気液分離器１を備え、第２実施形態及び第３実施形態は、熱交換器１００内に液溜り形成用の分離プレートである仕切り板２を備えている。 The heat exchanger 100 according to the present application will be described below with reference to the drawings.
In the present application, the first embodiment, the second embodiment, and the third embodiment will be mainly described.
Here, 1st Embodiment is provided with the gas-liquid separator 1 which performs the gas-liquid separation of the low-temperature heat medium c separately from the heat exchanger 100 of this application, and 2nd Embodiment and 3rd Embodiment are heat exchange. The container 100 includes a partition plate 2 that is a separation plate for forming a liquid pool.

図１、図３、図４に示すように、本願に係る熱交換器１００は、水平方向に延びる外胴３と、この外胴３内に配置され高温熱媒体が内部を流れる複数の伝熱管４からなる伝熱管群４０とを備え、高温熱媒体入口５より受け入れた高温熱媒体が伝熱管群４０内を流れる状態で、外胴３と伝熱管群４０との間に形成された低温熱媒体移流空間５０に流入される構造が採用されている。   As shown in FIGS. 1, 3, and 4, a heat exchanger 100 according to the present application includes an outer cylinder 3 that extends in the horizontal direction, and a plurality of heat transfer tubes that are arranged in the outer cylinder 3 and through which a high-temperature heat medium flows. Low-temperature heat formed between the outer body 3 and the heat transfer tube group 40 in a state where the high-temperature heat medium received from the high-temperature heat medium inlet 5 flows in the heat transfer tube group 40. A structure that flows into the medium advection space 50 is employed.

これらの図において、外胴３の左右両端側には一対の管板６が設けられており、管板６より横方向端部側に、それぞれ高温熱媒体入口５に接続される高温熱媒体室７、及び高温熱媒体出口８に接続される高温熱媒体室９が設けられている。さらに、一対の管板６間には、伝熱管群４０が設けられている。従って、高温熱媒体入口５から高温熱媒体室７に流入する高温熱媒体ｈは、伝熱管群４０内を流れ、高温熱媒体室９に流入し、高温熱媒体出口８から流出する。   In these drawings, a pair of tube plates 6 are provided on the left and right ends of the outer body 3, and the high temperature heat medium chambers connected to the high temperature heat medium inlets 5 respectively on the side ends in the lateral direction from the tube plates 6. 7 and a high-temperature heat medium chamber 9 connected to the high-temperature heat medium outlet 8 are provided. Further, a heat transfer tube group 40 is provided between the pair of tube plates 6. Accordingly, the high temperature heat medium h flowing into the high temperature heat medium chamber 7 from the high temperature heat medium inlet 5 flows through the heat transfer tube group 40, flows into the high temperature heat medium chamber 9, and flows out from the high temperature heat medium outlet 8.

前記外胴３内で、一対の管板６及び伝熱管群４０の外側に形成される空間が低温熱媒体移流空間５０として構成されている。このような低温熱媒体ｃの一例は、気液混相状態にある天然ガスとなる。
図１に示す第１実施形態では、外胴３上部に低温熱媒体入口１０及び加温ガス放出口１１を設けている。
図３に示す第２実施形態、図４に示す第３実施形態では、外胴上部３Ｕに低温熱媒体入口１０を当該低温熱媒体入口１０を設けた外胴の横方向の端部側で、外胴下部３Ｄに加温ガス放出口１１を設けている。 A space formed outside the pair of tube plates 6 and the heat transfer tube group 40 in the outer body 3 is configured as a low-temperature heat medium advection space 50. An example of such a low-temperature heat medium c is natural gas in a gas-liquid mixed phase state.
In the first embodiment shown in FIG. 1, a low-temperature heat medium inlet 10 and a heated gas discharge port 11 are provided at the upper part of the outer body 3.
In the second embodiment shown in FIG. 3 and the third embodiment shown in FIG. 4, the low-temperature heat medium inlet 10 is provided on the outer cylinder upper portion 3U on the lateral end side of the outer cylinder provided with the low-temperature heat medium inlet 10. A heated gas discharge port 11 is provided in the outer trunk lower part 3D.

上記構造から、低温熱媒体移流空間５０内を媒体が移流するに伴って、当該低温熱媒体ｃが伝熱管４内を流れる高温熱媒体ｈにより昇温、加温され、加温ガスｗとして加温ガス放出口１１から外部に放出される。   From the above structure, as the medium flows in the low-temperature heat medium advection space 50, the low-temperature heat medium c is heated and heated by the high-temperature heat medium h flowing in the heat transfer tube 4, and is heated as a heated gas w. It is discharged from the hot gas discharge port 11 to the outside.

第１実施形態、第２実施形態、第３実施形態ともに、低温熱媒体移流空間５０に流入する低温熱媒体ｃの総量と同量の加温ガスｗが外部に放出される。従って、本願において、「低温熱媒体移流空間５０に流入する低温熱媒体ｃの総量に対応するガス量」とは、実質的に低温熱媒体移流空間５０に流入する低温熱媒体ｃの総量と同量の加温ガスｗ量を意味する。
即ち、単位時間当り低温熱媒体移流空間５０に送り込まれる低温熱媒体ｃの量に対応する加温ガスｗが、当該単位時間で熱交換器１００から送り出される。 In all of the first embodiment, the second embodiment, and the third embodiment, the same amount of the heated gas w as the total amount of the low-temperature heat medium c flowing into the low-temperature heat medium advection space 50 is released to the outside. Therefore, in the present application, the “gas amount corresponding to the total amount of the low temperature heat medium advection space 50 flowing into the low temperature heat medium advection space 50” is substantially the same as the total amount of the low temperature heat medium c flowing into the low temperature heat medium advection space 50. It means the amount of warming gas w.
That is, the heated gas w corresponding to the amount of the low-temperature heat medium c fed into the low-temperature heat medium advection space 50 per unit time is sent out from the heat exchanger 100 in the unit time.

本願に係る熱交換器１００は、低温熱媒体移流空間５０に、加温ガスｗが流れる外胴内の空間である加温ガス移流空間部位に、液相状態にある低温熱媒体ｃと加温ガスｗとの接触面積を拡大する接触面積拡大手段１０１が備えられている。   In the heat exchanger 100 according to the present application, the low-temperature heat medium advection space 50 and the warm gas advection space portion, which is the space in the outer cylinder through which the warm gas w flows, are heated with the low-temperature heat medium c in the liquid phase and the warming. A contact area enlarging means 101 for enlarging the contact area with the gas w is provided.

以下、実施形態毎に説明する。
〔第１実施形態〕
図１に、この実施形態を示した。
この実施形態は、本願に係る熱交換器１００の上流側に低温熱媒体ｃの気液分離器１を備えた例である。
図からも判明するように、この例では、伝熱管４に於ける高温熱媒体ｈの移流下手側に、気相状態にある低温熱媒体ｃを受け入れる第１低温熱媒体流入口１０ａを備え、伝熱管４に於ける高温熱媒体ｈの移流上手側に、液相状態にある低温熱媒体ｃを受け入れる第２低温熱媒体流入口１０ｂを備えて構成されている。そして、低温熱媒体出口１１は、伝熱管４の最上流側の管板６付近に設けられている。従って、低温熱媒体移流空間５０を、伝熱管４に於ける高温熱媒体ｈの移流下手側から移流上手側に、気相状態にある低温熱媒体ｃ（加温ガスｗ）が移流する。 Hereinafter, each embodiment will be described.
[First Embodiment]
FIG. 1 shows this embodiment.
This embodiment is an example in which the gas-liquid separator 1 of the low-temperature heat medium c is provided on the upstream side of the heat exchanger 100 according to the present application.
As can be seen from the figure, in this example, the first low temperature heat medium inlet 10a for receiving the low temperature heat medium c in the gas phase is provided on the lower side of the advection of the high temperature heat medium h in the heat transfer tube 4, A second low-temperature heat medium inlet 10b that receives the low-temperature heat medium c in the liquid phase is provided on the upper side of the transfer of the high-temperature heat medium h in the heat transfer tube 4. The low-temperature heat medium outlet 11 is provided in the vicinity of the tube plate 6 on the most upstream side of the heat transfer tube 4. Therefore, the low-temperature heat medium c (heated gas w) in the gas phase is transferred from the lower transfer side of the high-temperature heat medium h in the heat transfer tube 4 to the upper transfer side in the heat transfer tube 4.

さらに、先に説明した第２低温熱媒体流入口１０ｂの下部（この部位が本願にいう加温ガス移流空間部位に相当する）に、接触面積拡大手段１０１が備えられている。   Furthermore, a contact area enlarging means 101 is provided below the second low-temperature heat medium inlet 10b described above (this portion corresponds to the heated gas advection space portion referred to in the present application).

図２に、接触面積拡大手段１０１の具体的構成を示した。
接触面積拡大手段１０１は、液相状態の低温熱媒体ｃを受け止め液面を形成する皿状部材１２からなり、当該皿状部材に上下方向の貫通孔１３が複数設けられている。この貫通孔１３の穿孔方向は皿状部材の下方から上方に向かう方向とされており、穿孔に伴って上方に向かってばりが形成されるようになっている。従って、この皿状部材１２の上面に第２低温熱媒体流入口１０ｂから流入する液相状態にある低温熱媒体ｃの液面が形成される。
さらに、図から判明するように、複数の皿状部材１２が上下方向に積層されている。そして、上下に位置する皿状部材１２間で、貫通孔１３の水平方向での位置を互いに異ならせるように構成している。従って、これら貫通孔１３を通過する液相状態にある低温熱媒体ｃの液面を下側の皿状部材１２上に形成できる。また、これら上下の皿状部材１２間に、加温ガスｗの流通路が形成されている。 FIG. 2 shows a specific configuration of the contact area enlarging means 101.
The contact area enlarging means 101 is composed of a dish-like member 12 that receives the low-temperature heat medium c in a liquid phase and forms a liquid surface, and a plurality of vertical through holes 13 are provided in the dish-like member. The perforation direction of the through-hole 13 is a direction from the lower side to the upper side of the dish-like member, and a flash is formed upward with the perforation. Accordingly, a liquid surface of the low-temperature heat medium c in a liquid phase flowing from the second low-temperature heat medium inlet 10b is formed on the upper surface of the dish-like member 12.
Further, as can be seen from the figure, a plurality of dish-like members 12 are stacked in the vertical direction. And it is comprised so that the position in the horizontal direction of the through-hole 13 may differ between the plate-shaped members 12 located up and down. Accordingly, the liquid surface of the low-temperature heat medium c in a liquid phase state passing through the through holes 13 can be formed on the lower dish-like member 12. In addition, a flow path for the heated gas w is formed between the upper and lower dish-shaped members 12.

〔第２実施形態〕
図３に、この実施形態を示した。
この実施形態は、熱交換器１００内に気液分離部１０２を備えた例であり、熱交換器１００の上下方向中間位置で、低温熱媒体流入口１０の下部、加温ガス放出口１１の上部に気液分離部１０２として働く、仕切り板２を備えている。 [Second Embodiment]
FIG. 3 shows this embodiment.
This embodiment is an example in which a gas-liquid separation unit 102 is provided in the heat exchanger 100, and at the intermediate position in the vertical direction of the heat exchanger 100, the lower part of the low-temperature heat medium inlet 10 and the heated gas discharge port 11. A partition plate 2 that functions as a gas-liquid separator 102 is provided at the top.

即ち、この例の熱交換器１００は、伝熱管４に於ける高温熱媒体ｈの移流下手側の上側部位に、気液混相状態にある低温熱媒体ｃを受け入れる低温熱媒体流入口１０を備え、伝熱管４に於ける高温熱媒体ｈの移流下手側の下側部位に、加温ガスｗを放出する加温ガス放出口１１を備えるとともに、伝熱管４に於ける高温熱媒体ｈの移流下手側に設けられた管板６から、伝熱管４に於ける高温熱媒体ｈの移流方向に沿って仕切り板２が延設されている。   That is, the heat exchanger 100 of this example includes the low-temperature heat medium inlet 10 that receives the low-temperature heat medium c in the gas-liquid mixed phase at the upper part of the heat transfer tube 4 on the lower side of the advection of the high-temperature heat medium h. The heat transfer tube 4 is provided with a heated gas discharge port 11 for discharging the heated gas w at the lower portion of the lower side of the transfer of the high temperature heat medium h in the heat transfer tube 4, and the advection of the high temperature heat medium h in the heat transfer tube 4. A partition plate 2 extends from a tube plate 6 provided on the lower side along the direction of advancing the high-temperature heat medium h in the heat transfer tube 4.

そして、低温熱媒体移流空間５０を、低温熱媒体流入口１０から流入した低温熱媒体ｃが、仕切り板２に沿って、その上側を伝熱管４に於ける高温熱媒体ｈの移流方向上手側に移動するとともに、仕切り板２の端部と高温熱媒体ｈの移流上手側に設けられた管板６との間の上下方向連通路１０３を介して下降移動し、仕切り板２に沿って、その下側を伝熱管４に於ける高温熱媒体ｈの移流方向下手側に移動して加温ガス放出口１１に到達する。   Then, the low-temperature heat medium c flowing from the low-temperature heat medium inlet 10 through the low-temperature heat medium advection space 50 along the partition plate 2 is on the upper side in the direction of the high-temperature heat medium h in the heat transfer tube 4. Along the vertical communication path 103 between the end portion of the partition plate 2 and the tube plate 6 provided on the upper side of the advancing of the high-temperature heat medium h, and along the partition plate 2, The lower side moves to the lower side of the heat transfer tube 4 in the direction of transfer of the high-temperature heat medium h and reaches the heated gas discharge port 11.

本願の特徴構成である接触面積拡大手段１０１は、仕切り板２の端部２ｅの下側に設けられている。
この例に於ける接触面積拡大手段１０１も、先に第１実施形態で説明した皿状部材１２から構成されている。即ち、接触面積拡大手段は、液相状態の低温熱媒体ｃを受け止め液面を形成する皿状部材１２からなり、当該皿状部材１２に上下方向の貫通孔１３が複数設けられている。この貫通孔１３の穿孔方向は皿状部材１２の下方から上方に向かう方向とされており、穿孔に伴って上方に向かってばりが形成されるようになっている。従って、この皿状部材１２の上面に低温熱媒体流入口１０から流入する液相状態にある低温熱媒体の液面が形成される。
さらに、図から判明するように、複数の皿状部材１２が上下方向に積層されている。そして、上下に位置する皿状部材１２間で、貫通孔１３の水平方向での位置を互いに異ならせるように構成している。従って、これら貫通孔１３を通過する液相状態にある低温熱媒体ｃの液面を下側の皿状部材１２上に形成できる。また、これら上下の皿状部材１２間に、加温ガスｗの流通路が形成されている。 The contact area enlarging means 101, which is a characteristic configuration of the present application, is provided below the end 2 e of the partition plate 2.
The contact area expanding means 101 in this example is also composed of the dish-like member 12 described in the first embodiment. That is, the contact area expanding means is composed of a dish-like member 12 that receives the low-temperature heat medium c in the liquid phase and forms a liquid surface, and the dish-like member 12 is provided with a plurality of vertical through holes 13. The through-hole 13 is drilled in the direction from the bottom to the top of the dish-shaped member 12, and a flash is formed upward with the drilling. Therefore, a liquid surface of the low-temperature heat medium in a liquid phase flowing from the low-temperature heat medium inlet 10 is formed on the upper surface of the dish-like member 12.
Further, as can be seen from the figure, a plurality of dish-like members 12 are stacked in the vertical direction. And it is comprised so that the position in the horizontal direction of the through-hole 13 may differ between the plate-shaped members 12 located up and down. Accordingly, the liquid surface of the low-temperature heat medium c in a liquid phase state passing through the through holes 13 can be formed on the lower dish-like member 12. In addition, a flow path for the heated gas w is formed between the upper and lower dish-shaped members 12.

〔第３実施形態〕
図４に、この実施形態を示した。
この実施形態も、熱交換器１００内に気液分離部１０２を備えた例であり、熱交換器１００の上下方向中間位置で、低温熱媒体流入口１０の下部、加温ガス放出口１１の上部に気液分離部１０２として働く、仕切り板２を備えている。
即ち、伝熱管４に於ける高温熱媒体ｈの移流下手側の上側部位に、気液混相状態にある低温熱媒体ｃを受け入れる低温熱媒体流入口１０を備え、伝熱管４に於ける高温熱媒体ｈの移流下手側の下側部位に、加温ガスｗを放出する加温ガス放出口１１を備えるとともに、伝熱管４に於ける高温熱媒体ｈの移流下手側に設けられた管板６から、伝熱管４に於ける高温熱媒体ｈの移流方向に沿って仕切り板２が延設されている。 [Third Embodiment]
FIG. 4 shows this embodiment.
This embodiment is also an example in which the gas-liquid separator 102 is provided in the heat exchanger 100, and at the intermediate position in the vertical direction of the heat exchanger 100, the lower part of the low-temperature heat medium inlet 10 and the heated gas discharge port 11. A partition plate 2 that functions as a gas-liquid separator 102 is provided at the top.
That is, a low-temperature heat medium inlet 10 for receiving a low-temperature heat medium c in a gas-liquid mixed phase is provided at an upper portion of the heat transfer tube 4 on the lower side of the advancing of the high-temperature heat medium h. A tube 6 provided on the lower side of the advancing lower side of the medium h is provided with a heated gas discharge port 11 for discharging the heated gas w and provided on the lower side of the advancing hot medium h in the heat transfer tube 4. Therefore, the partition plate 2 is extended along the direction of the flow of the high-temperature heat medium h in the heat transfer tube 4.

従って、低温熱媒体移流空間５０を、低温熱媒体流入口１０から流入した低温熱媒体ｃが、仕切り板２に沿って、その上側を伝熱管４に於ける高温熱媒体ｈの移流方向上手側に移動するとともに、仕切り板２の端部２ｅと高温熱媒体ｈの移流上手側に設けられた管板６との間の上下方向連通路１０３を介して下降移動し、仕切り板２に沿って、その下側を伝熱管４に於ける高温熱媒体ｈの移流方向下手側に移動して加温ガス放出口１１に到達する。   Accordingly, the low-temperature heat medium c flowing from the low-temperature heat medium inlet 10 through the low-temperature heat medium advection space 50 along the partition plate 2 is on the upper side in the direction in which the high-temperature heat medium h in the heat transfer tube 4 is transferred. And move downward along the vertical communication path 103 between the end portion 2e of the partition plate 2 and the tube plate 6 provided on the upper side of the advancing of the high-temperature heat medium h, along the partition plate 2 The lower side of the heat transfer tube 4 moves to the lower side in the direction of transfer of the high-temperature heat medium h and reaches the heated gas discharge port 11.

この例にあっては、図４からも判明するように仕切り板２の端部２ｅ近傍部位に、当該仕切り板２を貫通する複数の仕切り板貫通孔２ｐが設けられている。従って、仕切り板２上では、低温熱媒体の液面が形成されるものの、この仕切り板貫通孔２ｐから低温熱媒体液が滴下する。   In this example, a plurality of partition plate through-holes 2p penetrating the partition plate 2 are provided in the vicinity of the end 2e of the partition plate 2 as can be seen from FIG. Therefore, although the liquid surface of the low-temperature heat medium is formed on the partition plate 2, the low-temperature heat medium liquid is dripped from the partition plate through hole 2p.

本願の特徴構成である接触面積拡大手段は、仕切り板２の端部側部位に設けられた複数の貫通孔２ｐの下側に、設けられている。
この例に於ける接触面積拡大手段も、先に第１実施形態で説明した皿状部材１２から構成されている。即ち、 接触面積拡大手段は、液相状態の低温熱媒体ｃを受け止め液面を形成する皿状部材１２からなり、当該皿状部材１２に上下方向の貫通孔１３が複数設けられている。この貫通孔１３の穿孔方向は皿状部材１２の下方から上方に向かう方向とされており、穿孔に伴って上方に向かってばりが形成されるようになっている。従って、この皿状部材１２の上面に低温熱媒体流入口１０から流入する液相状態にある低温熱媒体ｃの液面が形成される。
さらに、図から判明するように、複数の皿状部材１２が上下方向に積層されている。そして、上下に位置する皿状部材１２間で、貫通孔１３の水平方向での位置を互いに異ならせるように構成している。従って、これら貫通孔１３を通過する液相状態にある低温熱媒体ｃの液面を下側の皿状部材１２上に形成できる。また、これら上下の皿状部材１２間に、加温ガスｗの流通路が形成されている。 The contact area enlarging means, which is a characteristic configuration of the present application, is provided on the lower side of the plurality of through holes 2p provided in the end side portion of the partition plate 2.
The contact area expanding means in this example is also composed of the dish-shaped member 12 described in the first embodiment. That is, the contact area enlarging means is composed of a dish-like member 12 that receives the low-temperature heat medium c in the liquid phase and forms a liquid surface, and the dish-like member 12 is provided with a plurality of vertical through holes 13. The through-hole 13 is drilled in the direction from the bottom to the top of the dish-shaped member 12, and a flash is formed upward with the drilling. Accordingly, a liquid surface of the low-temperature heat medium c in a liquid phase state flowing from the low-temperature heat medium inlet 10 is formed on the upper surface of the dish-like member 12.
Further, as can be seen from the figure, a plurality of dish-like members 12 are stacked in the vertical direction. And it is comprised so that the position in the horizontal direction of the through-hole 13 may differ between the plate-shaped members 12 located up and down. Accordingly, the liquid surface of the low-temperature heat medium c in a liquid phase state passing through the through holes 13 can be formed on the lower dish-like member 12. In addition, a flow path for the heated gas w is formed between the upper and lower dish-shaped members 12.

〔別実施形態〕
以下、本願の別実施形態に関して説明する。
（１）上述の実施形態では、高温熱媒体が、概略水平方向で、右から左に流れる形態を示したが、右から左に流れる他、左から右に流れてもよい。
（２）上述の第３実施形態において、接触面積拡大手段は、仕切り板２ｅの端部から液滴の落下地点を考慮して、適宜延設して構成することもできる。
（３）上記の実施形態では、接触面積拡大手段が複数の皿状部材から構成される例を示したが、このような接触面積拡大手段は、液相状態にある低温熱媒体が液面を形成し、その液面において気相状態にある低温熱媒体と熱交換できればよい。
このような構成の別実施形態としては、図５（ａ）（ｂ）に示すように、伝熱管群の間に、液相状態の低温熱媒体を受け止め、液面を形成する樋状部材３０からなり、当該樋
状部材３０に上下方向の貫通孔３１が複数設けられている構成を採用できる。
ここで、図５（ａ）に示す例は、断面視、下側に凸の円弧状部材を採用し、その円弧内に低温熱媒体の液を貯留し、当該樋状部材３０の上に液面を形成するものである。図５（ｂ）に示す例は、断面視、中央の棒状部材３５に対して、放射状に放射板３６を分散させて設け、棒状部材３５と上方に延びる放射板３６で低温熱媒体の液を貯留し、当該樋状部材３０の上に液面を形成するものである。 [Another embodiment]
Hereinafter, another embodiment of the present application will be described.
(1) In the above-described embodiment, the form in which the high-temperature heat medium flows from the right to the left in the substantially horizontal direction is shown, but it may flow from the left to the right instead of flowing from the right to the left.
(2) In the above-described third embodiment, the contact area enlarging means can be appropriately extended from the end of the partition plate 2e in consideration of the droplet drop point.
(3) In the above embodiment, an example in which the contact area enlarging means is composed of a plurality of dish-shaped members has been shown. However, in such a contact area enlarging means, the low-temperature heat medium in a liquid phase state has a liquid surface. It is only necessary to form and exchange heat with a low-temperature heat medium in a gas phase on the liquid surface.
As another embodiment of such a configuration, as shown in FIGS. 5 (a) and 5 (b), a bowl-shaped member 30 that receives a low-temperature heat medium in a liquid phase state and forms a liquid surface between heat transfer tube groups. It is possible to adopt a configuration in which a plurality of through holes 31 in the vertical direction are provided in the bowl-shaped member 30.
Here, the example shown in FIG. 5A employs an arc-shaped member that protrudes downward in a cross-sectional view, stores the liquid of the low-temperature heat medium in the arc, and the liquid is placed on the bowl-shaped member 30. A surface is formed. In the example shown in FIG. 5B, a radial plate 36 is provided in a radial manner with respect to the central rod-shaped member 35 in a sectional view, and the liquid of the low-temperature heat medium is provided by the rod-shaped member 35 and the radial plate 36 extending upward. The liquid level is stored on the bowl-shaped member 30.

図５（ｃ）は、外胴３内をその上下方向に沿った断面で示した図であり、上記樋状部材３０の分散配置状態を示したものである。この図からも判明するように、外筒３の筒軸方向視で、複数の前記樋状部材３０が上下及び左右方向に分散配置されることで、適宜、液相状態にある低温熱媒体を受止め、その気化を促進することができる。   FIG. 5C is a view showing the inside of the outer body 3 in a cross section along the vertical direction, and shows a dispersed arrangement state of the hook-shaped members 30. As can be seen from this figure, the plurality of eaves-shaped members 30 are distributed in the vertical and horizontal directions when the outer cylinder 3 is viewed in the axial direction of the cylinder, so that a low-temperature heat medium in a liquid phase can be appropriately disposed. Accept and promote its vaporization.

横置きシェルアンドチューブ構造を有する熱交換器であって、昇温対象の低温熱媒体が、気液混相状態で熱交換器内に流入するある熱交換器において、熱交換器内において、低温熱媒体の気化を確実に行い、熱交換器から送出される低温熱媒体を確実に気相の状態とすることができる熱交換器を得ることができた。   A heat exchanger having a horizontal shell and tube structure, in which a low-temperature heat medium to be heated flows into the heat exchanger in a gas-liquid mixed phase state. It was possible to obtain a heat exchanger capable of reliably vaporizing the medium and ensuring that the low-temperature heat medium sent from the heat exchanger is in a gas phase state.

２ 仕切り板
２ｐ 仕切り板貫通孔
３ 外筒
４ 伝熱管
１０ 低温熱媒体流入口
１１ 加温ガス放出口
１２ 皿状部材
１３ 貫通孔
３０ 樋状部材
４０ 伝熱管群
５０ 低温熱媒体移流空間
１０１ 接触面積拡大手段
１０２ 気液分離部
１０３ 上下方向連通路 2 Partition plate 2p Partition plate through hole 3 Outer cylinder 4 Heat transfer tube 10 Low temperature heat medium inflow port 11 Heated gas discharge port 12 Dish-shaped member 13 Through hole 30 Haze member 40 Heat transfer tube group 50 Low temperature heat medium advection space 101 Contact area Enlarging means 102 Gas-liquid separator 103 Vertical communication path

Claims (6)

水平方向に延びる外胴と、前記外胴内に配置され高温熱媒体が内部を流れる複数の伝熱管からなる伝熱管群とを備え、高温熱媒体入口より受け入れた前記高温熱媒体が前記伝熱管群内を流れる状態で、前記外胴と前記伝熱管群との間に形成された低温熱媒体移流空間に流入される低温熱媒体を加温して加温ガスとして外部に放出するシェルアンドチューブ形に構成され、
前記低温熱媒体移流空間に流入する低温熱媒体量に対応するガス量の前記加温ガスが外部に放出される構成で、
前記低温熱媒体が気液混相状態で前記低温熱媒体移流空間に流入することがある熱交換器であって、
前記低温熱媒体移流空間において加温ガスが流れる外胴内の空間である加温ガス移流空間部位に、液相状態にある前記低温熱媒体と前記加温ガスとの接触面積を拡大する接触面積拡大手段を備えた熱交換器。 An outer cylinder extending in the horizontal direction; and a heat transfer tube group including a plurality of heat transfer tubes arranged in the outer cylinder and through which the high-temperature heat medium flows, wherein the high-temperature heat medium received from a high-temperature heat medium inlet is the heat transfer tube A shell-and-tube that heats a low-temperature heat medium flowing into a low-temperature heat medium advection space formed between the outer cylinder and the heat transfer tube group in a state of flowing in the group and discharges it as a heated gas to the outside. Composed in shape,
In the configuration in which the heated gas in a gas amount corresponding to the amount of the low temperature heat medium flowing into the low temperature heat medium advection space is released to the outside,
The heat exchanger in which the low temperature heat medium may flow into the low temperature heat medium advection space in a gas-liquid mixed phase state,
A contact area that expands a contact area between the low-temperature heat medium and the heated gas in a liquid phase in a heated gas advection space portion that is a space in an outer trunk through which the heated gas flows in the low-temperature heat medium advection space. Heat exchanger with expansion means. 前記伝熱管に於ける前記高温熱媒体の移流下手側に、気相状態にある前記低温熱媒体を受け入れる第１低温熱媒体流入口を備え、
前記伝熱管に於ける前記高温熱媒体の移流上手側に、液相状態にある前記低温熱媒体を受け入れる第２低温熱媒体流入口を備え、
前記低温熱媒体移流空間を、前記伝熱管に於ける前記高温熱媒体の移流下手側から移流上手側に、前記低温熱媒体が移流する構成で、
前記第２低温熱媒体流入口の下部に、前記接触面積拡大手段を備えた請求項１記載の熱交換器。 A first low-temperature heat medium inlet configured to receive the low-temperature heat medium in a gas phase on the downstream side of the transfer of the high-temperature heat medium in the heat transfer tube;
A second low-temperature heat medium inlet for receiving the low-temperature heat medium in a liquid phase on the upper side of the advection of the high-temperature heat medium in the heat transfer tube;
The low temperature heat medium advection space is configured such that the low temperature heat medium advects from the advancing lower side of the high temperature heat medium in the heat transfer tube to the upper side of the advancing.
The heat exchanger according to claim 1, wherein the contact area expanding means is provided below the second low-temperature heat medium inlet. 前記伝熱管に於ける前記高温熱媒体の移流下手側の上側部位に、気液混相状態にある前記低温熱媒体を受け入れる低温熱媒体流入口を備え、
前記伝熱管に於ける前記高温熱媒体の移流下手側の下側部位に、加温ガスを放出する加温ガス放出口を備えるとともに、
前記伝熱管に於ける前記高温熱媒体の移流下手側に設けられた管板から、前記伝熱管に於ける高温熱媒体の移流方向に沿って仕切り板が延設され、
前記低温熱媒体移流空間を、低温熱媒体流入口から流入した前記低温熱媒体が、前記仕切り板に沿って、その上側を伝熱管に於ける高温熱媒体の移流方向上手側に移動するとともに、仕切り板の端部と前記高温熱媒体の移流上手側に設けられた管板との間の上下方向連通路を介して下降移動し、前記仕切り板に沿って、その下側を伝熱管に於ける高温熱媒体の移流方向下手側に移動してするとともに加温ガス放出口に到達する構成で、
前記仕切り板の端部の下側に、前記接触面積拡大手段を備えた請求項１記載の熱交換器。 A low-temperature heat medium inlet for receiving the low-temperature heat medium in a gas-liquid mixed phase in an upper portion of the heat transfer tube on the lower side of the advection of the high-temperature heat medium;
A heating gas discharge port for discharging a heating gas is provided at a lower portion of the heat transfer tube in the lower side of the advection of the high-temperature heat medium, and
A partition plate extends from the tube plate provided on the lower side of the transfer of the high temperature heat medium in the heat transfer tube along the transfer direction of the high temperature heat medium in the heat transfer tube,
The low temperature heat medium flowing from the low temperature heat medium inlet through the low temperature heat medium advection space moves upward along the partition plate to the upper side of the high temperature heat medium in the heat transfer tube. It moves downward through a vertical communication path between the end of the partition plate and the tube plate provided on the upper side of the advancing flow of the high-temperature heat medium, and the lower side of the partition plate along the partition plate passes through the heat transfer tube. In the configuration that moves to the lower side of the advancing direction of the hot heat medium and reaches the heated gas discharge port,
The heat exchanger according to claim 1, wherein the contact area expanding means is provided below the end of the partition plate. 前記伝熱管に於ける前記高温熱媒体の移流下手側の上側部位に、気液混相状態にある前記低温熱媒体を受け入れる低温熱媒体流入口を備え、
前記伝熱管に於ける前記高温熱媒体の移流下手側の下側部位に、加温ガスを放出する加温ガス放出口を備えるとともに、
前記伝熱管に於ける前記高温熱媒体の移流下手側に設けられた管板から、前記伝熱管に於ける高温熱媒体の移流方向に沿って仕切り板が延設され、
前記低温熱媒体移流空間を、低温熱媒体流入口から流入した前記低温熱媒体が、前記仕切り板に沿って、その上側を伝熱管に於ける高温熱媒体の移流方向上手側に移動するとともに、仕切り板の端部と前記高温熱媒体の移流上手側に設けられた管板との間の上下方向連通路を介して下降移動し、前記仕切り板に沿って、その下側を伝熱管に於ける高温熱媒体の移流方向下手側に移動してするとともに加温ガス放出口に到達する構成で、
前記仕切り板の端部側部位に複数の貫通孔を設け、前記複数の貫通孔の下側に、前記接触面積拡大手段を備えた請求項１記載の熱交換器。 A low-temperature heat medium inlet for receiving the low-temperature heat medium in a gas-liquid mixed phase in an upper portion of the heat transfer tube on the lower side of the advection of the high-temperature heat medium;
A heating gas discharge port for discharging a heating gas is provided at a lower portion of the heat transfer tube in the lower side of the advection of the high-temperature heat medium, and
A partition plate extends from the tube plate provided on the lower side of the transfer of the high temperature heat medium in the heat transfer tube along the transfer direction of the high temperature heat medium in the heat transfer tube,
The low temperature heat medium flowing from the low temperature heat medium inlet through the low temperature heat medium advection space moves upward along the partition plate to the upper side of the high temperature heat medium in the heat transfer tube. It moves downward through a vertical communication path between the end of the partition plate and the tube plate provided on the upper side of the advancing flow of the high-temperature heat medium, and the lower side of the partition plate along the partition plate passes through the heat transfer tube. In the configuration that moves to the lower side of the advancing direction of the hot heat medium and reaches the heated gas discharge port,
2. The heat exchanger according to claim 1, wherein a plurality of through holes are provided in an end portion side portion of the partition plate, and the contact area expanding means is provided below the plurality of through holes. 前記接触面積拡大手段が、液相状態の低温熱媒体を受け止め液面を形成する皿状部材からなり、当該皿状部材に上下方向の貫通孔が複数設けられている請求項１〜４の何れか一項記載の熱交換器。   The contact area enlarging means comprises a dish-like member that receives a liquid-phase low-temperature heat medium and forms a liquid surface, and the dish-like member is provided with a plurality of vertical through holes. A heat exchanger according to claim 1. 複数の前記皿状部材が複数、上下方向に積層して構成され、皿状部材間に、加温ガスの流通路が形成されている請求項５記載の熱交換器。   The heat exchanger according to claim 5, wherein a plurality of the dish-shaped members are stacked in the vertical direction, and a flow path for the heated gas is formed between the dish-shaped members.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5630585A (en) * 1979-08-22 1981-03-27 Chiyoda Chem Eng & Constr Co Ltd Lng evaporation apparatus
JPS60160391U (en) * 1984-03-29 1985-10-24 北芝電機株式会社 Multi-tube cylindrical heat exchanger
JP2010060058A (en) * 2008-09-04 2010-03-18 Central Res Inst Of Electric Power Ind Liquefied gas vaporizer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5630585A (en) * 1979-08-22 1981-03-27 Chiyoda Chem Eng & Constr Co Ltd Lng evaporation apparatus
JPS60160391U (en) * 1984-03-29 1985-10-24 北芝電機株式会社 Multi-tube cylindrical heat exchanger
JP2010060058A (en) * 2008-09-04 2010-03-18 Central Res Inst Of Electric Power Ind Liquefied gas vaporizer

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