JPS62141398A - Method of raising temperature of low temperature lpg and apparatus thereof - Google Patents
Method of raising temperature of low temperature lpg and apparatus thereofInfo
- Publication number
- JPS62141398A JPS62141398A JP60280539A JP28053985A JPS62141398A JP S62141398 A JPS62141398 A JP S62141398A JP 60280539 A JP60280539 A JP 60280539A JP 28053985 A JP28053985 A JP 28053985A JP S62141398 A JPS62141398 A JP S62141398A
- Authority
- JP
- Japan
- Prior art keywords
- lpg
- temperature
- heat
- low
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
- F17C7/02—Discharging liquefied gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0119—Shape cylindrical with flat end-piece
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/035—Propane butane, e.g. LPG, GPL
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/03—Treating the boil-off
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/03—Treating the boil-off
- F17C2265/032—Treating the boil-off by recovery
- F17C2265/033—Treating the boil-off by recovery with cooling
- F17C2265/034—Treating the boil-off by recovery with cooling with condensing the gas phase
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
【発明の詳細な説明】
・産業上の利用分野
本発明は、低温ＬＰＧを常温化する方法及びその装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION - Industrial Application Field The present invention relates to a method and apparatus for bringing low-temperature LPG to room temperature.
Φ従来技術とその問題点
ＬＰＧは常温で加圧するか、常圧で低温にすれば液化す
る。通常、ＬＰＧを大量に貯蔵する場合には、後者の冷
凍式貯蔵法が採られている。ΦPrior art and its problems LPG liquefies if it is pressurized at room temperature or at normal pressure and at a low temperature. Usually, when storing a large amount of LPG, the latter frozen storage method is adopted.
そこで、冷凍式貯蔵法により貯蔵されているＬＰＧを消
費する場合には、ＬＰＧ低温タンク内に貯蔵されていた
低温ＬＰＧを常温に戻す必要がある。又、ＬＰＧ低温タ
ンクは、その周囲を断熱材で断熱し、入熱を防止する手
段が講じられているが、それでも入熱により気化して蒸
発ガス（以下ｒＢＯＧＪ という）が発生する。特に、
ＬＰＧ低温タンク内に低温ＬＰＧを受は入れる際には、
大量のＢＯＧが発生する。このＢＯＧは、圧縮機を使用
して加圧し、凝縮器で凝縮させたのち、前記常温化した
ＬＰＧと共に消費側例えばＬＰＧ常温タンクへと送られ
る。Therefore, when consuming LPG stored by the frozen storage method, it is necessary to return the low-temperature LPG stored in the LPG low-temperature tank to room temperature. Furthermore, although measures are taken to prevent heat input by insulating the LPG low-temperature tank with a heat insulating material around the tank, the LPG tank still evaporates due to the heat input and generates evaporative gas (rBOGJ hereinafter). especially,
When receiving low-temperature LPG into the LPG low-temperature tank,
A large amount of BOG is generated. After this BOG is pressurized using a compressor and condensed in a condenser, it is sent to a consumption side, for example, an LPG room temperature tank, together with the room temperature LPG.
第２図は上記従来例を示したもので、０１がＬＰＧ低温
タンク、０２がＬＰＧ常温タンク、０３がＬＰＧ低温タ
ンク０１からＬＰＧ常温タンク０２に至る常温化ライン
、０４がこの常温化ライン０３内に設けられた加熱器に
して、この加熱器０４内を低温ＬＰＧが通過するときに
蒸気ライン０６で加熱された熱媒ライン０５により加熱
されて常温に戻される。Figure 2 shows the above conventional example, where 01 is an LPG low temperature tank, 02 is an LPG normal temperature tank, 03 is a normal temperature line from LPG low temperature tank 01 to LPG normal temperature tank 02, and 04 is inside this normal temperature line 03. When the low-temperature LPG passes through the heater 04, it is heated by the heat medium line 05 heated by the steam line 06 and returned to room temperature.
０７は低温ＬＰＧタンク０１内に発生したＢＯＧを回収
し、再液化して前記常温化ライン０３に合流させるＢＯ
Ｇ再液化ラインにして、０８はこのＢＯＧ処理ライン０
７に設けられたボイルオフガス圧縮機、０９は凝縮器、
０１０は凝縮潜熱を回収する冷却ライン、０１１は再冷
基である。07 is a BO that collects BOG generated in the low-temperature LPG tank 01, re-liquefies it, and merges it into the normal temperature line 03.
G reliquefaction line, 08 is this BOG processing line 0
7 is a boil-off gas compressor, 09 is a condenser,
010 is a cooling line for recovering latent heat of condensation, and 011 is a recooling group.
しかし乍ら、上記従来の常温化方法及びその装置におい
ては、次のような欠点がある。However, the above-mentioned conventional room temperature heating method and apparatus have the following drawbacks.
ａ、 低温ＬＰＧを常温化する熱源としては、−１−記
のように蒸気を利用したり、海水或いは電気ヒータを利
用しているため、この設備、運転、メンテナンス等に多
くの経費と手数が要る。a. As a heat source for bringing low-temperature LPG to room temperature, steam, seawater, or electric heaters are used as described in -1-, so this equipment, operation, maintenance, etc. requires a lot of expense and effort. need.
特に海水を利用する場合には、取水、排水設備に膨大な
設備費がかかる。In particular, when seawater is used, huge equipment costs are required for water intake and drainage equipment.
ｂ、 ＢＯＧの再液化のために従来は、上記のように
凝縮器を使用するため、凝縮潜熱を回収する再冷却設備
にこれも膨大な設備費と運転経費がかかる。b. Conventionally, a condenser is used to reliquefy BOG as described above, which also requires enormous equipment costs and operating costs for the recooling equipment that recovers the latent heat of condensation.
ψ本発明の目的
本発明は、簡単な設備により低温ＬＰＧの常温化とＢＯ
Ｇの再液化を図る方法及びその装置を提案するのが目的
である。ψObject of the present invention The present invention aims to bring low-temperature LPG to room temperature and BO using simple equipment.
The purpose of this paper is to propose a method and device for reliquefying G.
・本発明の構成 本発明の構成は次のとおりである。・Configuration of the present invention The configuration of the present invention is as follows.
１、 ＬＰＧ低温タンク内に貯蔵された低温ＬＰＧを
常温に戻す過程において、前記ＬＰＧ低温タンク内に発
生した蒸発ガスを圧縮してこれと前記低温ＬＰＧとを熱
交換することにより、蒸発ガスは低温ＬＰＧの顕熱で再
液化し、低温ＬＰＧは蒸発ガスの凝縮潜熱で常温化する
低温ＬＰＧの常温化方法。1. In the process of returning the low-temperature LPG stored in the LPG low-temperature tank to room temperature, the evaporated gas generated in the LPG low-temperature tank is compressed and heat exchanged with the low-temperature LPG, so that the evaporated gas becomes low-temperature. A method for bringing low-temperature LPG to room temperature by re-liquefying it using the sensible heat of LPG, and bringing the low-temperature LPG to room temperature using the latent heat of condensation of evaporated gas.
２、 槽内に仕切板をたて方向に配置することにより左
右に熱交換室を形成し、この仕切板の上下部分において
左右の熱交換室を連通ずると共に槽内に中間熱媒液を充
填し、一方の熱交換室にはＬＰＧ加熱用熱交換器を浸漬
し、他方の熱交換室にはＢＯＧ凝縮用熱交換器を浸漬し
、槽内の中間熱媒液をＢＯＧ凝縮用熱交換器を浸漬した
側からＬＰＧ加熱用熱交換器を浸漬した側へ強制循環又
は自然循環するように構成したことを特徴とする低温Ｌ
ＰＧの常温化装置。2. Heat exchange chambers are formed on the left and right sides by arranging partition plates in the vertical direction within the tank, and the left and right heat exchange chambers are communicated at the top and bottom of the partition plates, and the intermediate heat medium liquid is filled in the tank. A heat exchanger for LPG heating is immersed in one heat exchange chamber, a heat exchanger for BOG condensation is immersed in the other heat exchange chamber, and the intermediate heat medium liquid in the tank is transferred to the heat exchanger for BOG condensation. A low-temperature L characterized in that it is configured such that forced circulation or natural circulation occurs from the immersed side to the immersed side of the LPG heating heat exchanger.
PG room temperature device.
上記のように、低温ＬＰＧの冷熱を利用してＢＯＧの再
冷を行ない、一方ＢＯＧの凝縮潜熱で低温ＬＰＧを加熱
して常温化をすることにより、低温ＬＰＧの加熱設備及
びこのコスト並びにＢＯＧの再冷用設備及びこのコスト
の低減化を図ることができる。As mentioned above, by using the cold energy of low-temperature LPG to re-cool the BOG, and on the other hand heating the low-temperature LPG with the latent heat of condensation of the BOG to bring it to room temperature, it is possible to reduce the cost of low-temperature LPG heating equipment and its cost, as well as the cost of BOG. Re-cooling equipment and its cost can be reduced.
なお、上記熱交換を行なう常温化装置において、中間熱
媒を槽内に大量に充填し、この熱媒を羽根車を利用して
強制循環させると、熱媒の循環量は大量となる。この結
果、羽根車の運転動力は小さくてよく、然も加熱、冷却
側の流量（熱量）変動に拘らず安定した運転が行なえる
。又、通常ＬＰＧヒータのように単に０１以上に昇温す
れば良い場合と異なり、信頼性を要求されるオンライン
ポンプを直列に接続して、ポンプのＮＰＳＨ［実際の圧
力−（蒸気圧＋配管抵抗）］を確保するため温度上限を
安定させなければならない場合に有用となる。In addition, in the normal temperature device that performs heat exchange, if a large amount of intermediate heating medium is filled in the tank and this heating medium is forcedly circulated using an impeller, the amount of circulation of the heating medium becomes large. As a result, the operating power of the impeller may be small, and stable operation can be performed regardless of fluctuations in flow rate (heat amount) on the heating and cooling sides. Also, unlike ordinary LPG heaters where it is only necessary to raise the temperature to 01 or higher, online pumps that require reliability are connected in series, and the pump's NPSH [actual pressure - (vapor pressure + piping resistance)] )] is useful when the upper temperature limit must be stabilized.
・実施例 第１図に本発明の一実施例を詳記する。·Example FIG. 1 details an embodiment of the present invention.
１はＬＰＧ低温タンク、２はＬＰＧ常温タンク、３はＬ
ＰＧ低温タンク１からＬＰＧ常温タンク２に至る常温化
ライン、４はＬＰＧ低温タンク１内に発生したＢＯＧを
回収して再液化するＢＯＧ再液化ラインにして、この再
液化ライン４は前記常温化ライン３に合流している。５
はＢＯＧ再液化ライン４に設けたボイルオフガス圧縮機
、６は熱交換槽にして、この熱交換槽６内には中間熱媒
が充填しであると共に、中央に仕切板７がたて方向に装
入してあり、左熱交換室８と右熱交換室９に分かれてい
る。なお、左右の熱交換室８．９は仕切板７の上下にお
いて連通し、仕切板７の上部に配置されたモータ駆動の
羽根車（水車）１０により右熱交換室９内の熱媒が仕切
壁７の」二部から左熱交換室８内に入り、左熱交換室８
内の熱媒は仕切板７の下部を通って右熱交換室９内に入
る強制循環が行なわれる。1 is LPG low temperature tank, 2 is LPG room temperature tank, 3 is L
A room temperature line 4 runs from the PG cold tank 1 to the LPG room temperature tank 2, and 4 is a BOG reliquefaction line that collects and reliquefies BOG generated in the LPG cold tank 1, and this reliquefaction line 4 is the room temperature line. It merges into 3. 5
6 is a boil-off gas compressor installed in the BOG reliquefaction line 4, and 6 is a heat exchange tank, which is filled with an intermediate heating medium and has a partition plate 7 in the center vertically. It is divided into a left heat exchange chamber 8 and a right heat exchange chamber 9. The left and right heat exchange chambers 8.9 communicate with each other at the top and bottom of the partition plate 7, and the heat medium in the right heat exchange chamber 9 is partitioned by a motor-driven impeller (water wheel) 10 arranged at the top of the partition plate 7. Enter the left heat exchange chamber 8 from the second part of the wall 7, and enter the left heat exchange chamber 8.
The heat medium inside passes through the lower part of the partition plate 7 and enters the right heat exchange chamber 9 for forced circulation.
１１は前記常温化ライン３内のＬＰＧ加熱用熱交換器に
して、この熱交換器１１は左熱交換室８内に浸漬されて
いる。Reference numeral 11 denotes a heat exchanger for heating LPG in the normal temperature line 3, and this heat exchanger 11 is immersed in the left heat exchange chamber 8.
１２は前記ＢＯＧ再液化ライン４内のＢＯＧ凝縮用熱交
換器にして、この熱交換器１２は前記右熱交換室９内に
浸漬されている。１３は補助的な中間熱媒加熱用蒸気ヒ
ータを示す。12 is a BOG condensing heat exchanger in the BOG reliquefaction line 4, and this heat exchanger 12 is immersed in the right heat exchange chamber 9. 13 indicates an auxiliary steam heater for heating the intermediate heating medium.
実施例は以上の如き構成から成り、次にその運転例を説
明する。The embodiment has the above configuration, and an example of its operation will be explained next.
ＬＰＧ低温タンク１内に貯蔵された低温ＬＰＧは、ポン
プ３ａにより吸い上げられてＬＰＧ常温化ライン３内に
入り、ＬＰＧ加熱用熱交換器１１に至る。一方、ＬＰＧ
低温タンク１内に発生したＢＯＧは、ＢＯＧ再液化ライ
ン４にて回収され、ボイルオフガス圧縮器５で圧縮され
、ＢＯＧ凝縮用熱交換器１２内に至る。The low-temperature LPG stored in the LPG low-temperature tank 1 is sucked up by the pump 3a, enters the LPG normal temperature line 3, and reaches the LPG heating heat exchanger 11. On the other hand, LPG
The BOG generated in the low-temperature tank 1 is recovered in the BOG reliquefaction line 4, compressed in the boil-off gas compressor 5, and delivered to the BOG condensing heat exchanger 12.
熱交換槽６内においては、羽根車１０の運転により中間
熱媒が強制循環しており、右熱交換室９においてＢＯＧ
の凝縮潜熱が放出され、この熱を吸収した中間熱媒は左
熱交換室８に循環し、熱交換器１１において熱を放出し
低温ＬＰＧを加温して常温化する。この結果、低温ＬＰ
ＧはＢＯＧの凝縮潜熱で加熱され、一方ＢＯＧ側は低温
ＬＰＧの冷熱で冷却される。この熱バランスにより常温
化されたＬＰＧは常温化ライン３から常温タンク２内に
送られ、再液化されたＢＯＧは前記常温化ライン３に合
流したのち常温タンク２内に送られる。蒸気ヒータ１３
は低温ＬＰＧ側の冷熱が多く、ＢＯＧ側の凝縮潜熱が不
足し、槽６内の中間熱媒の温度が低下した場合に補助的
に運転される。In the heat exchange tank 6, the intermediate heat medium is forcedly circulated by the operation of the impeller 10, and in the right heat exchange chamber 9, the BOG
The latent heat of condensation is released, and the intermediate heat medium that has absorbed this heat is circulated to the left heat exchange chamber 8, where it releases heat in the heat exchanger 11 and warms the low-temperature LPG to normal temperature. As a result, low temperature LP
G is heated by the latent heat of condensation of BOG, while the BOG side is cooled by the cold heat of low-temperature LPG. The LPG brought to room temperature by this heat balance is sent from the room temperature line 3 to the room temperature tank 2, and the reliquefied BOG joins the room temperature line 3 and then sent into the room temperature tank 2. Steam heater 13
is operated as an auxiliary operation when the temperature of the intermediate heating medium in the tank 6 decreases due to a large amount of cold heat on the low-temperature LPG side and insufficient latent heat of condensation on the BOG side.
・本発明の効果 本発明の効果は次のとおりである。・Effects of the present invention The effects of the present invention are as follows.
ａ、 低温ＬＰＧの冷熱を利用してＢＯＧの再冷を行な
い、ＢＯＧの凝縮潜熱を利用して低温ＬＰＧの常温化を
行なうので、従来必要であった低温ＬＰＧの加熱設備或
いはＢＯＧの再冷却設備は不要となる。a. Since the cold energy of low-temperature LPG is used to re-cool the BOG, and the latent heat of condensation of the BOG is used to bring the low-temperature LPG to room temperature, the conventionally required low-temperature LPG heating equipment or BOG re-cooling equipment is not required. becomes unnecessary.
この結果、低温ＬＰＧの常温化及びＢＯＧの再液化に要
する設備費、運転コスト、メンテナンス費等を削減でき
る。As a result, equipment costs, operating costs, maintenance costs, etc. required for bringing low-temperature LPG to room temperature and reliquefying BOG can be reduced.
ｂ、 熱交換槽内に中間熱媒を充填すると共にこの中間
熱媒を羽根車により大量に強制循環させて熱移動を大量
に行なうようにした。b. The heat exchange tank is filled with an intermediate heating medium, and a large amount of this intermediate heating medium is forcedly circulated by an impeller to transfer a large amount of heat.
この結果、低温ＬＰＧ或いはＢＯＧの量が急激に変化し
た場合でも、この変化熱量に対して鈍感となり、熱交換
流体の負荷変動速度の許容範囲が非常に大きくなる。As a result, even if the amount of low-temperature LPG or BOG changes rapidly, the system becomes insensitive to this change in the amount of heat, and the allowable range of the rate of load fluctuation of the heat exchange fluid becomes very large.
Ｃ３前記すの効果により、ステップ状の急激なロード変
動があった場合においてもＬＰＧ、 ＢＯＧの出湯の
範囲を保障することができる。Due to the effect of C3, the hot water supply range for LPG and BOG can be guaranteed even when there is a sudden step-like load change.
第１図は本発明に係る常温化装置の実施例図、第２図は
従来の常温化装置の説明図である。
１・・・・・・ＬＰＧ低温タンク、２・・・・・・常温
タンク、３・・・・・・常温化ライン、
４・・・・・・ＢＯＧ再液化ライン、
６・・・・・・熱交換槽、 ７・・・・・・仕
切板、１０・・・羽根車、
１１・・・ＬＰＧ加熱用熱交換器、
１２・・・ＢＯＧ凝縮用熱交換器。FIG. 1 is an embodiment of the room temperature device according to the present invention, and FIG. 2 is an explanatory diagram of a conventional room temperature device. 1...LPG low temperature tank, 2...Normal temperature tank, 3...Normal temperature line, 4...BOG reliquefaction line, 6... - Heat exchange tank, 7... Partition plate, 10... Impeller, 11... LPG heating heat exchanger, 12... BOG condensing heat exchanger.
Claims (1)
に戻す過程において、前記ＬＰＧ低温タンク内に発生し
た蒸発ガスを圧縮してこれと前記低温ＬＰＧとを熱交換
することにより、蒸発ガスは低温ＬＰＧの冷熱で再液化
し、低温ＬＰＧは蒸発ガスの凝縮潜熱で常温化する低温
ＬＰＧの常温化方法。 ２、槽内に仕切板をたて方向に配置することにより左右
に熱交換室を形成し、この仕切板の上下部分において左
右の熱交換室を連通すると共に槽内に中間熱媒液を充填
し、一方の熱交換室には低温ＬＰＧ加熱用熱交換器を浸
漬し、他方の熱交換室にはＢＯＧ凝縮用熱交換器を浸漬
し、槽内の中間熱媒液をＢＯＧ凝縮用熱交換器を浸漬し
た側からＬＰＧ加熱用熱交換器を浸漬した側へ強制循環
又は自然循環するように構成したことを特徴とする低温
ＬＰＧの常温化装置。[Claims] 1. In the process of returning the low-temperature LPG stored in the LPG low-temperature tank to room temperature, the evaporated gas generated in the LPG low-temperature tank is compressed and heat exchanged with the low-temperature LPG. In this method, the evaporated gas is reliquefied by the cold heat of the low-temperature LPG, and the low-temperature LPG is brought to room temperature by the latent heat of condensation of the evaporated gas. 2. By arranging partition plates vertically in the tank, heat exchange chambers are formed on the left and right sides, and the left and right heat exchange chambers are communicated through the upper and lower parts of the partition plates, and the tank is filled with an intermediate heat medium liquid. A heat exchanger for heating low-temperature LPG is immersed in one heat exchange chamber, a heat exchanger for BOG condensation is immersed in the other heat exchange chamber, and the intermediate heat medium liquid in the tank is used for heat exchange for BOG condensation. 1. A low-temperature LPG normalization device characterized in that the device is configured to perform forced circulation or natural circulation from the side where the container is immersed to the side where the LPG heating heat exchanger is immersed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60280539A JPS62141398A (en) | 1985-12-13 | 1985-12-13 | Method of raising temperature of low temperature lpg and apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60280539A JPS62141398A (en) | 1985-12-13 | 1985-12-13 | Method of raising temperature of low temperature lpg and apparatus thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62141398A true JPS62141398A (en) | 1987-06-24 |
Family
ID=17626487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60280539A Pending JPS62141398A (en) | 1985-12-13 | 1985-12-13 | Method of raising temperature of low temperature lpg and apparatus thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62141398A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6598408B1 (en) | 2002-03-29 | 2003-07-29 | El Paso Corporation | Method and apparatus for transporting LNG |
| US6688114B2 (en) | 2002-03-29 | 2004-02-10 | El Paso Corporation | LNG carrier |
| US7219502B2 (en) | 2003-08-12 | 2007-05-22 | Excelerate Energy Limited Partnership | Shipboard regasification for LNG carriers with alternate propulsion plants |
| US7293600B2 (en) | 2002-02-27 | 2007-11-13 | Excelerate Energy Limited Parnership | Apparatus for the regasification of LNG onboard a carrier |
| US9919774B2 (en) | 2010-05-20 | 2018-03-20 | Excelerate Energy Limited Partnership | Systems and methods for treatment of LNG cargo tanks |
| KR20230096182A (en) * | 2021-12-22 | 2023-06-30 | 주식회사 한국가스기술공사 | Liquid hydrogen fueling system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55145897A (en) * | 1979-04-26 | 1980-11-13 | Chiyoda Chem Eng & Constr Co Ltd | Liquefaction of evaporated gas in tank |
-
1985
- 1985-12-13 JP JP60280539A patent/JPS62141398A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55145897A (en) * | 1979-04-26 | 1980-11-13 | Chiyoda Chem Eng & Constr Co Ltd | Liquefaction of evaporated gas in tank |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7293600B2 (en) | 2002-02-27 | 2007-11-13 | Excelerate Energy Limited Parnership | Apparatus for the regasification of LNG onboard a carrier |
| US6598408B1 (en) | 2002-03-29 | 2003-07-29 | El Paso Corporation | Method and apparatus for transporting LNG |
| US6688114B2 (en) | 2002-03-29 | 2004-02-10 | El Paso Corporation | LNG carrier |
| US7219502B2 (en) | 2003-08-12 | 2007-05-22 | Excelerate Energy Limited Partnership | Shipboard regasification for LNG carriers with alternate propulsion plants |
| US7484371B2 (en) | 2003-08-12 | 2009-02-03 | Excelerate Energy Limited Partnership | Shipboard regasification for LNG carriers with alternate propulsion plants |
| US9919774B2 (en) | 2010-05-20 | 2018-03-20 | Excelerate Energy Limited Partnership | Systems and methods for treatment of LNG cargo tanks |
| KR20230096182A (en) * | 2021-12-22 | 2023-06-30 | 주식회사 한국가스기술공사 | Liquid hydrogen fueling system |
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