JP2010053932A - Vaporizer for low temperature liquefied gas - Google Patents

Vaporizer for low temperature liquefied gas Download PDF

Info

Publication number
JP2010053932A
JP2010053932A JP2008218509A JP2008218509A JP2010053932A JP 2010053932 A JP2010053932 A JP 2010053932A JP 2008218509 A JP2008218509 A JP 2008218509A JP 2008218509 A JP2008218509 A JP 2008218509A JP 2010053932 A JP2010053932 A JP 2010053932A
Authority
JP
Japan
Prior art keywords
seawater
panels
trough
panel
liquefied gas
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.)
Granted
Application number
JP2008218509A
Other languages
Japanese (ja)
Other versions
JP5155066B2 (en
Inventor
Koichi Shinkai
光一 新開
Akio Tsukamoto
彰夫 塚本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP2008218509A priority Critical patent/JP5155066B2/en
Publication of JP2010053932A publication Critical patent/JP2010053932A/en
Application granted granted Critical
Publication of JP5155066B2 publication Critical patent/JP5155066B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • F28D3/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits
    • F28D3/04—Distributing arrangements
    • 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
    • F28D3/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vaporizer for low temperature liquefied gas capable of preventing deterioration of sprinkling water distributing performance from a trough to a panel, capable of dispensing with addition of an unnecessary set of the panel and the trough, and capable of taking ocean environment into consideration. <P>SOLUTION: In the troughs 20 and 25 arranged on the outside of a panel unit out of the troughs 20-25 arranged on upper both sides of the panels 1-5, overflow parts 20b and 25b for making seawater W overflow are provided on an upper position on the side opposite from the panels 1 and 5. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、液化天然ガス（ＬＮＧ）、液化石油ガス（ＬＰＧ）、液化エタン、液化エチレン、液化アンモニア等の低温液化ガスの気化器に関する。   The present invention relates to a vaporizer for low-temperature liquefied gas such as liquefied natural gas (LNG), liquefied petroleum gas (LPG), liquefied ethane, liquefied ethylene, liquefied ammonia and the like.

液化ガスの気化器には種々の形式があり、目的や用途に応じてそれぞれ使用されている。そのうちオープンラック式気化器は、他のものより構成が簡単で、経済性、気化性能の安定性及び保守管理の容易さなどから、例えば、発電用燃料や都市ガスとしての液化天然ガス（以下ＬＮＧと称する）の気化等に多用されている。   There are various types of vaporizers for liquefied gas, and they are used according to the purpose and application. Among them, the open rack type carburetor has a simpler configuration than the others, and from the viewpoint of economy, stability of vaporization performance and ease of maintenance management, for example, liquefied natural gas (hereinafter referred to as LNG) as a fuel for power generation or city gas. Is often used for vaporization.

低温液化ガスの気化器としてのオープンラック式ＬＮＧ気化器は、例えば、特許文献１の図６に記載された構成が一般的なものとして知られている。図６において、複数の伝熱管４１をカーテン状に配列してなるパネル４２と、このパネル４２の下部に連結されたＬＮＧ供給用の下部ヘッダー４３及び上部に連結された気化ガス収集用の上部ヘッダー４４とが並列して配設されている。また、パネル４２を挟むように、熱源としての海水Ｗを流下させるトラフ４９が配設されている。このトラフ４９の内、パネル４２間に配設されトラフ４９の上両側縁部からは海水Ｗが溢流され、この溢流される海水Ｗがパネル４２の各面に沿って流下するように構成されている。また、このトラフ４９の内、左右両端に配設されたトラフ４９では、パネル４２側の上側縁部からは海水Ｗが溢流され、この溢流される海水Ｗがパネル４２の面に沿って流下するように構成されるが、パネル４２とは反対側の上側縁部からはパネルが存在しないため、海水Ｗが溢流されないように構成されている。   As an open rack LNG vaporizer as a vaporizer for low-temperature liquefied gas, for example, a configuration described in FIG. 6 of Patent Document 1 is generally known. In FIG. 6, a panel 42 in which a plurality of heat transfer tubes 41 are arranged in a curtain shape, a lower header 43 for supplying LNG connected to the lower portion of the panel 42, and an upper header for collecting vaporized gas connected to the upper portion. 44 are arranged in parallel. In addition, a trough 49 for flowing down the seawater W as a heat source is disposed so as to sandwich the panel 42. Among the troughs 49, the seawater W overflows from the upper side edges of the trough 49 disposed between the panels 42, and the overflowing seawater W flows down along each surface of the panel 42. ing. Further, in the troughs 49 disposed at both left and right sides of the trough 49, the seawater W overflows from the upper edge on the panel 42 side, and the overflowing seawater W flows down along the surface of the panel 42. However, since there is no panel from the upper edge on the side opposite to the panel 42, the seawater W is configured not to overflow.

上記のように構成されたことによりに、ＬＮＧは、ＬＮＧマニホールド４７から下部ヘッダー４３に送られ、パネル４２の伝熱管４１内を通る過程で海水Ｗによって加熱され、この加熱により気化されて上昇し、上部ヘッダー４４から天然ガス（ＮＧ）マニホールド４８へと導かれる。
特開平１１−３２５７５６号公報 By being configured as described above, LNG is sent from the LNG manifold 47 to the lower header 43 and heated by the seawater W in the process of passing through the heat transfer pipe 41 of the panel 42, and is vaporized and raised by this heating. , From the upper header 44 to a natural gas (NG) manifold 48.
JP-A-11-325756

しかしながら、上記特許文献１の図６に記載されたオープンラック式ＬＮＧ気化器には、以下のような問題点が存在する。   However, the open rack type LNG vaporizer described in FIG. 6 of Patent Document 1 has the following problems.

１）近年、オープンラック式ＬＮＧ気化器における伝熱管の改良等によって、上記気化器は高性能化しており、所定のＬＮＧ気化量を得るためのパネル当たりの熱源としての海水量は、少なくなってきている。
２）一方、海洋生物への悪影響等の環境上の問題に配慮して、オープンラック式ＬＮＧ気化器に供給される海水の入口温度と気化器出口温度の温度落差を４〜６℃程度に規制する動きがある。したがって、この規制に準拠しようとすると、上記構成の気化器においては、むしろ許容量以上の海水が供給されることになってしまい、トラフからパネルへの散水分布性能が悪化するといった問題点があった。
３）また、場合によっては、許容量以上に供給される海水に対処するために、不必要なパネルとトラフのセットを追加しなければならないといった問題点も生じていた。 1) In recent years, due to improvements in heat transfer tubes in open rack type LNG vaporizers, the above-mentioned vaporizers have been improved in performance, and the amount of seawater as a heat source per panel for obtaining a predetermined amount of LNG vaporization has decreased. ing.
2) On the other hand, in consideration of environmental problems such as adverse effects on marine organisms, the temperature difference between the inlet temperature of seawater supplied to the open rack LNG vaporizer and the outlet temperature of the vaporizer is regulated to about 4-6 ° C. There is a movement to do. Therefore, in order to comply with this regulation, the vaporizer configured as described above has a problem in that the seawater exceeding the allowable amount is supplied, and the performance of water distribution from the trough to the panel deteriorates. It was.
3) Also, in some cases, in order to cope with seawater supplied in excess of the allowable amount, an unnecessary panel and trough set has to be added.

本発明の目的は、トラフからパネルへの散水分布性能が悪化することなく、かつ、不必要なパネルとトラフのセットを追加したりする必要もないばかりか、海洋環境にも配慮された低温液化ガスの気化器を提供することにある。   The object of the present invention is not to deteriorate the water distribution performance from the trough to the panel, and it is not necessary to add an unnecessary panel and trough set. The object is to provide a gas vaporizer.

この目的を達成するために、本発明の請求項１に記載の発明は、
複数の伝熱管をカーテン状に配列したパネルを複数有し、この複数のパネルの面同士が対向するように前記複数のパネルを並列してなるパネルユニットと、前記複数のパネルの各上部両側に配設されたトラフとを備え、このトラフの上側縁部から前記複数のパネルの各両面に沿って熱源としての海水を流下させて熱交換することで、前記複数のパネル内の低温液化ガスを気化させる低温液化ガスの気化器であって、前記複数のパネルの各上部両側に配設されたトラフの内の前記パネルユニット外に配設された２つのトラフの少なくともいずれか一方のトラフのパネルとは反対側の上方の位置に前記海水を溢流させる溢流部が設けられたことを特徴とする低温液化ガスの気化器である。 In order to achieve this object, the invention according to claim 1 of the present invention provides:
A panel unit having a plurality of panels in which a plurality of heat transfer tubes are arranged in a curtain shape, and the plurality of panels arranged in parallel so that the surfaces of the plurality of panels face each other; A low-temperature liquefied gas in the plurality of panels by exchanging heat by flowing seawater as a heat source along each side of the plurality of panels from the upper edge of the trough. A vaporizer for a low-temperature liquefied gas to be vaporized, wherein the trough panel is at least one of two troughs arranged outside the panel unit among the troughs arranged on both upper sides of the plurality of panels. The low temperature liquefied gas vaporizer is characterized in that an overflow portion for overflowing the seawater is provided at a position on the opposite side to the above.

請求項２に記載の発明は、請求項１に記載の発明において、
前記溢流部から溢流れた海水を海水ポンド面近傍まで導くために、前記パネルユニット外に配設されたトラフの前記溢流部に近接して配管を設置したことを特徴とする。 The invention according to claim 2 is the invention according to claim 1,
In order to guide the seawater overflowing from the overflow part to the vicinity of the seawater pond surface, a pipe is installed in the vicinity of the overflow part of the trough disposed outside the panel unit.

請求項３に記載の発明は、請求項２に記載の発明において、
前記配管の前記溢流部に近接する側には、前記溢流部から溢流れた海水を一時滞留させる機能を有する一時滞留手段を備えたことを特徴とする。 The invention according to claim 3 is the invention according to claim 2,
Temporary retention means having a function of temporarily retaining seawater overflowing from the overflow portion is provided on a side of the pipe adjacent to the overflow portion.

以上のように、本発明に係る低温液化ガスの気化器によれば、
複数の伝熱管をカーテン状に配列したパネルを複数有し、この複数のパネルの面同士が対向するように前記複数のパネルを並列してなるパネルユニットと、前記複数のパネルの各上部両側に配設されたトラフとを備え、このトラフの上側縁部から前記複数のパネルの各両面に沿って熱源としての海水を流下させて熱交換することで、前記複数のパネル内の低温液化ガスを気化させる低温液化ガスの気化器であって、前記複数のパネルの各上部両側に配設されたトラフの内の前記パネルユニット外に配設された２つのトラフの少なくともいずれか一方のトラフのパネルとは反対側の上方の位置に前記海水を溢流させる溢流部が設けられた構成であるため、トラフの上側縁部からパネルに散水する海水量が低下するので、トラフからパネルへの散水分布性能が悪化することなく、かつ、不必要なパネルとトラフのセットを追加したりする必要もないばかりか、海洋環境にも配慮された低温液化ガスの気化器を実現することができる。 As described above, according to the low temperature liquefied gas vaporizer according to the present invention,
A panel unit having a plurality of panels in which a plurality of heat transfer tubes are arranged in a curtain shape, and the plurality of panels arranged in parallel so that the surfaces of the plurality of panels face each other; A low-temperature liquefied gas in the plurality of panels by exchanging heat by flowing seawater as a heat source along each side of the plurality of panels from the upper edge of the trough. A vaporizer for a low-temperature liquefied gas to be vaporized, wherein the trough panel is at least one of two troughs arranged outside the panel unit among the troughs arranged on both upper sides of the plurality of panels. Since the overflow part for overflowing the seawater is provided at a position on the opposite side of the trough, the amount of seawater sprayed from the upper edge of the trough to the panel is reduced. Without uniformity performance is deteriorated, and, not only there is no need to add a set of unnecessary panels and troughs, it is possible to realize a vaporizer of the low-temperature liquefied gas, which is also considered the marine environment.

以下、本発明の実施形態について、添付図面を参照しながら説明する。図１は本発明の一実施形態の低温液化ガスの気化器の概要構成を示す図面であって、（ａ）は主要構成を示す斜視図、（ｂ）は（ａ）のＡ―Ａ断面図である。   Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a diagram showing a schematic configuration of a low temperature liquefied gas vaporizer according to an embodiment of the present invention, wherein (a) is a perspective view showing the main configuration, and (b) is a cross-sectional view taken along line AA of (a). It is.

図１において、１、２、３、４、５は複数の伝熱管（詳細は、図示せず）をカーテン状に配列してなるパネル、６はパネル１〜５の面同士が対向するように並列してなるパネルユニット、１１、１２、１３、１４、１５はパネル１〜５の各上部に連結された上部ヘッダ、２０、２１、２２、２３、２４、２５はパネル１〜５の各上部両側に配設されたトラフ、２０ａ、２１ａ、２４ａ、２５ａはトラフ２０、２１、２４、２５からパネル１、５の各面に沿って熱源としての海水Ｗを散水し、流下させるための上側縁部、２０ｂ、２５ｂはパネルユニット６外に配設された２つのトラフ２０、２５において、それぞれパネル１、５とは反対側の上方の位置に設置された海水Ｗを溢流させる溢流部、３０は上部マニホールド、４０、４１は溢流部２０ｂ、２５ｂにそれぞれ近接して設置した配管、４０ａ、４１ａはそれぞれ配管４０、４１の主管、４０ｂ、４１ｂは溢流部２０ｂ、２５ｂから溢流れた海水Ｗを一時滞留させる機能を有する一時滞留手段としてのそれぞれ配管４０、４１の従管である。   In FIG. 1, 1, 2, 3, 4, and 5 are panels in which a plurality of heat transfer tubes (details are not shown) are arranged in a curtain shape, and 6 is such that the surfaces of panels 1 to 5 face each other. Panel units formed in parallel, 11, 12, 13, 14, and 15 are upper headers connected to the upper portions of the panels 1 to 5, and 20, 21, 22, 23, 24, and 25 are upper portions of the panels 1 to 5, respectively. Troughs 20a, 21a, 24a and 25a arranged on both sides are upper edges for sprinkling and flowing down seawater W as a heat source along each surface of panels 1 and 5 from troughs 20, 21, 24 and 25. In the two troughs 20 and 25 disposed outside the panel unit 6, the overflow portions 20 b and 25 b overflow the seawater W installed at positions above the panels 1 and 5, respectively. 30 is upper manifold, 40 and 41 are overflow parts Pipes installed in close proximity to 0b and 25b, 40a and 41a are main pipes of pipes 40 and 41, 40b and 41b are temporary retention means having a function of temporarily retaining seawater W overflowing from overflow portions 20b and 25b, respectively. Are subordinate pipes of pipes 40 and 41, respectively.

次に、上記本発明に係る低温液化ガスの気化器の構成による動作の概要を以下に説明する。   Next, an outline of the operation of the low-temperature liquefied gas vaporizer according to the present invention will be described below.

低温液化ガスとしてのＬＮＧは、ＬＮＧマニホールド（図示せず）からパネル１〜５の各下部に連結されたＬＮＧ供給用の下部ヘッダ（図示せず）に送られる。また、各下部ヘッダからパネル１〜５に送られたＬＮＧは加熱され（詳細は、下述する）、この加熱により気化されて上昇し、上部ヘッダ１１、１２、１３、１４、１５から上部マニホールド３０に導かれ、この上部マニホールド３０を介して図示省略の送ガスラインに送られる。   LNG as a low-temperature liquefied gas is sent from an LNG manifold (not shown) to a lower header (not shown) for supplying LNG connected to each lower part of the panels 1 to 5. The LNG sent from each lower header to the panels 1 to 5 is heated (details will be described below), vaporized and raised by this heating, and from the upper headers 11, 12, 13, 14, 15 to the upper manifold. 30 and is sent to a gas supply line (not shown) via the upper manifold 30.

ＬＮＧを加熱するための海水Ｗは、図示省略の海水ヘッダから分岐供給管（図示せず）を経て、トラフ２０、２１、２２、２３、２４、２５に送られる。例えば、パネルユニット６外に配設されたトラフ２０とパネルユニット６内に配設されたトラフ２１に送られた海水Ｗは、トラフ２０の上側縁部２０ａ（紙面右側）とトラフ２１の上側縁部２１ａ（紙面左側）からパネル１の各面に散水され、これらの面（両面）に沿って流下する。これにより、海水Ｗとパネル１のＬＮＧとの間で熱交換され、その結果ＬＮＧが気化され上部ヘッダ１１側へ上昇する。また、トラフ２１の紙面右側の図示省略の上側縁部とトラフ２２の紙面左側の図示省略の上側縁部から海水Ｗがパネル２の各面に散水され、これらの面（両面）に沿って流下することでパネル２のＬＮＧが気化される。また、トラフ２０の溢流部２０ｂから溢流させる海水Ｗは、ＬＮＧの気化に寄与することなく、従管４０ｂに一時滞留し主管４０ａで海水ポンドＰ面近傍まで導かれ、図示省略の海水溜まりで海水ポンドＰを形成した上で、外部に流出される。このような本願発明に特徴的な構成を採用することで、許容量以上の海水Ｗが海水ヘッダから供給された場合にも、トラフからパネルへの散水分布性能を悪化させることがない。また、不必要なパネルとトラフのセットを追加したりする必要もないばかりか、海洋環境にも配慮された低温液化ガスの気化器を実現することができる。さらに、溢流部２０ｂから溢流させる海水Ｗが主管４０ａと従管４０ｂから構成される配管４０により、海水ポンドＰ面近傍まで導かれるため、海水Ｗの落下による海水ポンドＰ面を激しい叩く音が軽減されるという作用効果も奏する。   Seawater W for heating LNG is sent to troughs 20, 21, 22, 23, 24, and 25 from a seawater header (not shown) via a branch supply pipe (not shown). For example, the seawater W sent to the trough 20 arranged outside the panel unit 6 and the trough 21 arranged inside the panel unit 6 is composed of the upper edge 20 a (the right side of the paper) of the trough 20 and the upper edge of the trough 21. Water is sprayed from the portion 21a (left side of the paper) to each surface of the panel 1 and flows down along these surfaces (both surfaces). Thereby, heat exchange is performed between the seawater W and the LNG of the panel 1, and as a result, the LNG is vaporized and rises toward the upper header 11 side. Further, seawater W is sprayed on each surface of the panel 2 from an upper edge (not shown) on the right side of the trough 21 and an upper edge (not shown) on the left side of the trough 22, and flows down along these surfaces (both sides). By doing so, the LNG of the panel 2 is vaporized. The seawater W that overflows from the overflow portion 20b of the trough 20 does not contribute to the vaporization of LNG, temporarily stays in the secondary pipe 40b, is guided to the vicinity of the seawater pond P surface by the main pipe 40a, and a seawater reservoir (not shown) is shown. After forming the seawater pound P, it is discharged to the outside. By adopting such a characteristic configuration of the present invention, even when the seawater W exceeding the allowable amount is supplied from the seawater header, the sprinkling distribution performance from the trough to the panel is not deteriorated. Moreover, it is not necessary to add an unnecessary panel and trough set, and it is possible to realize a low-temperature liquefied gas vaporizer that takes into consideration the marine environment. Further, since the seawater W that overflows from the overflow portion 20b is guided to the vicinity of the seawater pond P surface by the pipe 40 composed of the main pipe 40a and the follower pipe 40b, the sound of striking the seawater pond P surface due to the fall of the seawater W There is also an effect that is reduced.

また、パネルユニット６外に配設されたトラフ２５とパネルユニット６内に配設されたトラフ２４に送られた海水Ｗは、トラフ２５の上側縁部２５ａ（紙面左側）とトラフ２４の上側縁部２４ａ（紙面右側）からパネル５の各面に散水され、これらの面（両面）に沿って流下する。これにより、海水Ｗとパネル５のＬＮＧとの間で熱交換され、その結果ＬＮＧが気化され上部ヘッダ１５側へ上昇する。また、トラフ２４の紙面左側の図示省略の上側縁部とトラフ２３の紙面右側の図示省略の上側縁部から海水Ｗがパネル４の各面に散水され、これらの面（両面）に沿って流下することでパネル４のＬＮＧが気化される。また、トラフ２５の溢流部２５ｂから溢流させる海水Ｗは、ＬＮＧの気化に寄与することなく、従管４１ｂに一時滞留し主管４１ａで海水ポンドＰ面近傍まで導かれ、図示省略の海水溜まりで海水ポンドＰを形成した上で、外部に流出される。このような本願発明に特徴的な構成になっていることで、上述の作用効果がより一層顕著になる。   Further, the seawater W sent to the trough 25 disposed outside the panel unit 6 and the trough 24 disposed inside the panel unit 6 is composed of the upper edge 25 a (left side of the paper surface) of the trough 25 and the upper edge of the trough 24. Water is sprayed from the portion 24a (right side of the sheet) to each surface of the panel 5 and flows down along these surfaces (both surfaces). As a result, heat is exchanged between the seawater W and the LNG of the panel 5, and as a result, the LNG is vaporized and rises toward the upper header 15 side. Further, seawater W is sprayed on each surface of the panel 4 from an upper edge (not shown) on the left side of the trough 24 and an upper edge (not shown) on the right side of the trough 23, and flows along these surfaces (both sides). By doing so, the LNG of the panel 4 is vaporized. Further, the seawater W that overflows from the overflow portion 25b of the trough 25 does not contribute to the vaporization of LNG, temporarily stays in the secondary pipe 41b, is guided to the vicinity of the seawater pond P surface by the main pipe 41a, and a seawater reservoir (not shown) is shown. After forming the seawater pound P, it is discharged to the outside. By having such a characteristic configuration of the present invention, the above-described operational effects become even more remarkable.

また、トラフ２２の紙面右側の図示省略の上側縁部とトラフ２３の紙面左側の図示省略の上側縁部から海水Ｗがパネル３の各面に散水され、これらの面（両面）に沿って流下することでパネル３のＬＮＧが気化される。   Further, seawater W is sprayed on each surface of the panel 3 from an upper edge (not shown) on the right side of the trough 22 and an upper edge (not shown) on the left side of the trough 23, and flows along these surfaces (both sides). By doing so, the LNG of the panel 3 is vaporized.

なお、本実施形態においては、トラフ２０、２５の両方にそれぞれ溢流部２０ｂ、２５ｂを設置した例について説明したが、必ずしもこれに限定されるものではなく、海水量に応じてトラフ２０、２５の少なくともいずれか一方のトラフのパネルとは反対側の上方の位置に海水Ｗを溢流させる溢流部が設けられていればよい。   In addition, in this embodiment, although the example which installed the overflow parts 20b and 25b in each of the troughs 20 and 25 was demonstrated, it is not necessarily limited to this, The troughs 20 and 25 are according to the amount of seawater. It is sufficient that an overflow portion for overflowing the seawater W is provided at a position on the opposite side of at least one of the trough panels.

また、本実施形態においては、主管４０ａと従管４０ｂから構成される配管４０及び主管４１ａと従管４１ｂから構成される配管４１の例について説明したが、必ずしもこれに限定されるものではなく、溢流部から溢流れた海水Ｗを集める機能を有した開口部を一端に備えた配管をパネルユニット６外に配設されたトラフの溢流部に近接して設置し、集めた海水Ｗを海水ポンドＰ面近傍まで導くようにしてありさえすればよい。   Moreover, in this embodiment, although the example of the piping 40 comprised from the main pipe 40a and the subordinate pipe 40b and the piping 41 comprised from the main pipe 41a and the subordinate pipe 41b was demonstrated, it is not necessarily limited to this, A pipe provided with an opening at one end having a function of collecting the seawater W overflowing from the overflow portion is installed in the vicinity of the overflow portion of the trough disposed outside the panel unit 6, and the collected seawater W is collected. It only needs to be guided to the vicinity of the seawater pound P surface.

また、本実施形態においては、低温液化ガスとしてＬＮＧを例に説明したが、必ずしもこれに限定されるものではなく、ＬＰＧ、液化エタン、液化エチレン、液化アンモニア等の低温液化ガスを用いることも可能である。   In the present embodiment, LNG has been described as an example of the low-temperature liquefied gas. However, the present invention is not necessarily limited thereto, and low-temperature liquefied gas such as LPG, liquefied ethane, liquefied ethylene, and liquefied ammonia can be used. It is.

本発明の一実施形態の低温液化ガスの気化器の概要構成を示す図面であって、（ａ）は主要構成を示す斜視図、（ｂ）は（ａ）のＡ―Ａ断面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is drawing which shows schematic structure of the vaporizer of the low temperature liquefied gas of one Embodiment of this invention, Comprising: (a) is a perspective view which shows main structures, (b) is AA sectional drawing of (a).

符号の説明Explanation of symbols

１、２、３、４、５：パネル
６：パネルユニット
１１、１２、１３、１４、１５：上部ヘッダ
２０、２１、２２、２３、２４、２５：トラフ
２０ａ、２１ａ、２４ａ、２５ａ：上側縁部
２０ｂ、２５ｂ：溢流部
３０：上部マニホールド
４０、４１：配管
４０ａ、４１ａ：主管
４０ｂ、４１ｂ：従管 1, 2, 3, 4, 5: Panel 6: Panel unit 11, 12, 13, 14, 15: Upper header 20, 21, 22, 23, 24, 25: Trough 20a, 21a, 24a, 25a: Upper edge Part 20b, 25b: Overflow part 30: Upper manifold 40, 41: Pipe 40a, 41a: Main pipe 40b, 41b: Sub pipe

Claims (3)

複数の伝熱管をカーテン状に配列したパネルを複数有し、この複数のパネルの面同士が対向するように前記複数のパネルを並列してなるパネルユニットと、前記複数のパネルの各上部両側に配設されたトラフとを備え、このトラフの上側縁部から前記複数のパネルの各両面に沿って熱源としての海水を流下させて熱交換することで、前記複数のパネル内の低温液化ガスを気化させる低温液化ガスの気化器であって、前記複数のパネルの各上部両側に配設されたトラフの内の前記パネルユニット外に配設された２つのトラフの少なくともいずれか一方のトラフのパネルとは反対側の上方の位置に前記海水を溢流させる溢流部が設けられたことを特徴とする低温液化ガスの気化器。   There are a plurality of panels in which a plurality of heat transfer tubes are arranged in a curtain shape, and a panel unit in which the plurality of panels are arranged in parallel so that the surfaces of the plurality of panels face each other, and on each upper side of each of the plurality of panels A low-temperature liquefied gas in the plurality of panels by exchanging heat by flowing seawater as a heat source along each side of the plurality of panels from the upper edge of the trough. A vaporizer for a low-temperature liquefied gas to be vaporized, wherein the trough panel is at least one of two troughs arranged outside the panel unit among the troughs arranged on both upper sides of the plurality of panels. A vaporizer for low-temperature liquefied gas, characterized in that an overflow portion for overflowing the seawater is provided at a position on the opposite side to the above. 前記溢流部から溢流れた海水を海水ポンド面近傍まで導くために、前記パネルユニット外に配設されたトラフの前記溢流部に近接して配管を設置したことを特徴とする請求項１に記載の低温液化ガスの気化器。   2. A pipe is installed close to the overflow portion of the trough disposed outside the panel unit in order to guide the seawater overflowing from the overflow portion to the vicinity of the seawater pond surface. A low temperature liquefied gas vaporizer as described in 1. 前記配管の前記溢流部に近接する側には、前記溢流部から溢流れた海水を一時滞留させる機能を有する一時滞留手段を備えたことを特徴とする請求項２に記載の低温液化ガスの気化器。   The low-temperature liquefied gas according to claim 2, further comprising temporary retention means having a function of temporarily retaining seawater overflowing from the overflow portion on a side of the pipe adjacent to the overflow portion. Vaporizer.
JP2008218509A 2008-08-27 2008-08-27 Low temperature liquefied gas vaporizer Active JP5155066B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008218509A JP5155066B2 (en) 2008-08-27 2008-08-27 Low temperature liquefied gas vaporizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008218509A JP5155066B2 (en) 2008-08-27 2008-08-27 Low temperature liquefied gas vaporizer

Publications (2)

Publication Number Publication Date
JP2010053932A true JP2010053932A (en) 2010-03-11
JP5155066B2 JP5155066B2 (en) 2013-02-27

Family

ID=42070086

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008218509A Active JP5155066B2 (en) 2008-08-27 2008-08-27 Low temperature liquefied gas vaporizer

Country Status (1)

Country Link
JP (1) JP5155066B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017020547A (en) * 2015-07-08 2017-01-26 株式会社神戸製鋼所 Vaporizer
JP2017075633A (en) * 2015-10-14 2017-04-20 株式会社神戸製鋼所 Gas vaporizer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110319345A (en) * 2019-07-12 2019-10-11 哈尔滨理工大学 A kind of LNG gasification device of Hybrid Heating

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5757998A (en) * 1980-09-20 1982-04-07 Sumitomo Precision Prod Co Ltd Water spinkler for open rack type evaporator
JPH07332879A (en) * 1994-06-06 1995-12-22 Tokyo Gas Co Ltd Double ktube open rack type vaporizer
JPH08110181A (en) * 1994-10-12 1996-04-30 Sumitomo Precision Prod Co Ltd Thermal insulation structure of open rack type vaporizer
JPH10103896A (en) * 1996-09-30 1998-04-24 Tokyo Electric Power Co Inc:The Water sprinkler for open rack evaporator
JPH11270996A (en) * 1998-03-23 1999-10-05 Kobe Steel Ltd Lng vaporizer
JP2006177427A (en) * 2004-12-22 2006-07-06 Sumitomo Precision Prod Co Ltd Open rack type carburetor
JP2007078049A (en) * 2005-09-13 2007-03-29 Kobe Steel Ltd Heating tube for lng vaporizer and lng vaporizer using the heating tube
JP2010509546A (en) * 2006-11-04 2010-03-25 エイェルマン、ディルク Apparatus and method for reheating seawater used to vaporize liquefied natural gas

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5757998A (en) * 1980-09-20 1982-04-07 Sumitomo Precision Prod Co Ltd Water spinkler for open rack type evaporator
JPH07332879A (en) * 1994-06-06 1995-12-22 Tokyo Gas Co Ltd Double ktube open rack type vaporizer
JPH08110181A (en) * 1994-10-12 1996-04-30 Sumitomo Precision Prod Co Ltd Thermal insulation structure of open rack type vaporizer
JPH10103896A (en) * 1996-09-30 1998-04-24 Tokyo Electric Power Co Inc:The Water sprinkler for open rack evaporator
JPH11270996A (en) * 1998-03-23 1999-10-05 Kobe Steel Ltd Lng vaporizer
JP2006177427A (en) * 2004-12-22 2006-07-06 Sumitomo Precision Prod Co Ltd Open rack type carburetor
JP2007078049A (en) * 2005-09-13 2007-03-29 Kobe Steel Ltd Heating tube for lng vaporizer and lng vaporizer using the heating tube
JP2010509546A (en) * 2006-11-04 2010-03-25 エイェルマン、ディルク Apparatus and method for reheating seawater used to vaporize liquefied natural gas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017020547A (en) * 2015-07-08 2017-01-26 株式会社神戸製鋼所 Vaporizer
JP2017075633A (en) * 2015-10-14 2017-04-20 株式会社神戸製鋼所 Gas vaporizer
CN107014222A (en) * 2015-10-14 2017-08-04 株式会社神户制钢所 Gas evaporators

Also Published As

Publication number Publication date
JP5155066B2 (en) 2013-02-27

Similar Documents

Publication Publication Date Title
WO2014167779A1 (en) Vaporization device for low-temperature liquefied gas
JP2009052724A (en) Heating or vaporizing device for low temperature fluid, and method for operation thereof
JP2009209995A (en) Liquefied natural gas vaporizer and liquefied natural gas vaporization system
JP2010038330A (en) Hot water bath type vaporizer
JP5155066B2 (en) Low temperature liquefied gas vaporizer
JP2017150784A (en) Sprinkler system
JP6053389B2 (en) Ship equipped with liquefied gas vaporizer and liquefied gas vaporizer
JP2020148448A5 (en)
JP6420220B2 (en) Gas vaporizer and operation method thereof
JP2010038363A (en) Spray mechanism of open-rack evaporator
JP6420223B2 (en) Gas vaporizer
FI127390B (en) Arrangement of the heat recovery surfaces of the recovery boiler
JP2014194328A (en) Evaporative humidifier
JP2018040531A (en) Heat exchanger
JP5304916B1 (en) Electrolyzer and temperature-controlled water supply machine
JP5925105B2 (en) Saturator and natural gas reforming system having the same
JP5295345B2 (en) Low temperature liquefied gas vaporization system
CN201373238Y (en) Carbon dioxide vaporizer
JP6602577B2 (en) Vaporizer
JP6741820B1 (en) How to replace the vaporizer
KR101516291B1 (en) Curtain type open rack vaporizer
CN104024776B (en) For the method and apparatus reducing the impact of the motion in core shell-type exchangers
JPH11325756A (en) Sprinkling device for open rack type heat-exchanger
WO2022201480A1 (en) Device and method for vaporization of liquefied natural gas
CN206930186U (en) A kind of seawater compartment system of open-frame type gasifier

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20110204

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20110413

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20110413

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120820

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120828

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20121024

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20121204

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20121206

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20151214

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 5155066

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150