JPH0647003Y2 - Liquefied natural gas heating device - Google Patents
Liquefied natural gas heating deviceInfo
- Publication number
- JPH0647003Y2 JPH0647003Y2 JP3864092U JP3864092U JPH0647003Y2 JP H0647003 Y2 JPH0647003 Y2 JP H0647003Y2 JP 3864092 U JP3864092 U JP 3864092U JP 3864092 U JP3864092 U JP 3864092U JP H0647003 Y2 JPH0647003 Y2 JP H0647003Y2
- Authority
- JP
- Japan
- Prior art keywords
- partition plate
- natural gas
- pipe
- liquid
- heat
- 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.)
- Expired - Lifetime
Links
- 239000003949 liquefied natural gas Substances 0.000 title claims description 15
- 238000010438 heat treatment Methods 0.000 title claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 40
- 239000003915 liquefied petroleum gas Substances 0.000 claims description 35
- 238000005192 partition Methods 0.000 claims description 35
- 239000007788 liquid Substances 0.000 claims description 30
- 238000002156 mixing Methods 0.000 claims description 26
- 239000003345 natural gas Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 238000004821 distillation Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 7
- 230000033228 biological regulation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 101150076749 C10L gene Proteins 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は液化天然ガスの増熱装置
に関し、さらに詳しくは液状の液化石油ガスをガス状の
天然ガスに混合して所定の発熱量を有する都市ガスを得
る装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquefied natural gas heat increasing apparatus, and more particularly to an apparatus for mixing liquid liquefied petroleum gas with gaseous natural gas to obtain city gas having a predetermined calorific value.
【０００２】[0002]
【従来の技術】液化天然ガスは、燃焼に際して硫黄酸化
物や窒素酸化物の発生が少ない、あるいは安定した価格
で且つ長期間安定して輸入できる等の利点があるため、
都市ガス用の原料ガスとしても年々普及してきている。
液化天然ガスの組成は、メタンを主成分とするが、同伴
する炭化水素の量と組成は、その採取ガス田により相当
異なっており、従ってその発熱量も９５００〜１１５０
０キロカロリー／ＮＭ３と変動がある。このため発熱量
が低い場合は、法令で定められた発熱量になるよう発熱
量の高い液化石油ガスを混合して増熱する方法が採用さ
れている。2. Description of the Related Art Liquefied natural gas is advantageous in that it produces less sulfur oxides and nitrogen oxides during combustion, or can be imported at a stable price for a long period of time.
It is becoming popular as a raw material gas for city gas every year.
The composition of liquefied natural gas is methane as a main component, but the amount and composition of hydrocarbons entrained vary considerably depending on the extracted gas field, and therefore the calorific value thereof is 9500 to 1150.
There is a variation of 0 kcal / NM3. For this reason, when the calorific value is low, a method is adopted in which liquefied petroleum gas having a high calorific value is mixed to increase the heat so that the calorific value is determined by law.
【０００３】従来、この液化石油ガスを天然ガスに混合
して増熱する方法には、両者の相状態によりガス−ガス
熱調法，液−ガス熱調法，液−液熱調法があり、それぞ
れ長短を有しているが、本考案は液−ガス熱調法に基づ
いている。本法は、液化天然ガスの方は、大気又は海水
等の低品位の熱源を用いて気化してガス状にして、この
ガス状天然ガス中に液状の液化石油ガスを注入して、天
然ガスの顕熱を利用して液化石油ガスを気化する方法で
ある。この方法は、液化石油ガス単独で気化する場合に
必要な高品位熱源は不要であり、熱経済上は非常に有利
である反面、液化石油ガスの注入量が多い場合は、混合
ガスの温度がその露点以下まで下がってしまい、注入し
た液化石油ガスを全量気化できないという問題を有して
いる。Conventionally, as a method for heating the liquefied petroleum gas by mixing it with natural gas, there are a gas-gas heat adjustment method, a liquid-gas heat adjustment method, and a liquid-liquid heat adjustment method depending on the phase states of both. The present invention is based on the liquid-gas heat regulation method, although each method has its advantages and disadvantages. In this method, liquefied natural gas is vaporized by using a low-grade heat source such as the atmosphere or seawater to form a gas, and liquid liquefied petroleum gas is injected into the gaseous natural gas to produce natural gas. It is a method of vaporizing liquefied petroleum gas by utilizing the sensible heat of. This method does not require a high-grade heat source required when vaporizing liquefied petroleum gas alone, and is very advantageous in terms of thermo-economics, but when the injection amount of liquefied petroleum gas is large, the temperature of the mixed gas is There is a problem in that the liquefied petroleum gas injected cannot be completely vaporized because the dew point drops below the dew point.
【０００４】[0004]
【考案が解決しようとする課題】本出願人は、先に特願
平３−７３６６８号にて、上記の液−ガス熱調法の問題
点を解消した増熱装置を提案した。この装置は、低温水
で加熱する熱交換器の伝熱管内で天然ガスと液化石油ガ
スを混合すると同時に加熱することを特徴とするもので
あるが、多数の伝熱管内にそれぞれ噴霧ノズルを同心的
に挿着しなければならず、このため製作費が嵩むという
問題があること、さらには体積基準で数パーセント程度
しか混合されない液化石油ガスの均一混合の点でも問題
があることが分かった。本考案は、以上の問題点を解消
して、低温水で加熱できるとともに、注入する液化石油
ガスを常に所定比率に混合できる熱交換器と一体化し
た、さらに改良された増熱装置を提供することを課題と
する。The applicant of the present invention has previously proposed in Japanese Patent Application No. 3-73668 a heat increasing device which solves the problems of the liquid-gas heat regulation method. This device is characterized in that natural gas and liquefied petroleum gas are mixed and heated at the same time in a heat transfer tube of a heat exchanger that is heated by low-temperature water. It has been found that there is a problem in that the manufacturing cost is increased due to this, and that there is also a problem in the uniform mixing of liquefied petroleum gas, which is mixed by only a few percent by volume. The present invention solves the above problems and provides a further improved heat increasing device which can be heated with low temperature water and is integrated with a heat exchanger that can always mix liquefied petroleum gas to be injected in a predetermined ratio. This is an issue.
【０００５】[0005]
【課題を解決するための手段】本考案の要旨とするとこ
ろは、ガス状の液化天然ガスと液状の液化石油ガスを混
合して、竪型多管式熱交換器の伝熱管内を流し、管外側
を流れる低温水により加熱する液化天然ガスの増熱装置
において、前記熱交換器の上部又は下部チャンネル
（２）内に上部仕切板（３）及び下部仕切板（４）によ
って形成される液留室（１）と、前記上部仕切板と前記
下部仕切板を鉛直方向に貫通して立設され一端が天然ガ
スの入口管（１１）に対峙し他端が伝熱管（１５）に挿
入する混合管（５）と、前記混合管の上部仕切板の下面
近くに穿設されるＬＰＧの噴出孔（８）とを具備したこ
とを特徴とする液化天然ガスの増熱装置である。そして
第二の考案の要旨とするところは、前記考案の液化天然
ガスの増熱装置において、上部仕切板（３）及び下部仕
切板（４）の中間部に設けられる中間仕切板（７）と、
混合管（５）の前記中間仕切板の下面近くに穿設される
ＬＰＧの噴出孔（９）とを具備したことを特徴とする液
化天然ガスの増熱装置である。The gist of the present invention is to mix gaseous liquefied natural gas and liquid liquefied petroleum gas and let them flow in a heat transfer tube of a vertical multitubular heat exchanger. A liquid for forming a liquefied natural gas heating device heated by low-temperature water flowing outside the pipe, which is formed by an upper partition plate (3) and a lower partition plate (4) in an upper or lower channel (2) of the heat exchanger. The standing chamber (1) is vertically pierced through the upper partition plate and the lower partition plate and has one end facing the natural gas inlet pipe (11) and the other end inserted into the heat transfer pipe (15). A heating apparatus for liquefied natural gas, comprising: a mixing pipe (5); and an LPG ejection hole (8) formed near the lower surface of an upper partition plate of the mixing pipe. And the gist of the second invention is that in the liquefied natural gas heat increasing device of the above invention, an intermediate partition plate (7) provided at an intermediate portion between the upper partition plate (3) and the lower partition plate (4). ,
A heat-up device for liquefied natural gas, comprising: an LPG ejection hole (9) formed near the lower surface of the intermediate partition plate of the mixing pipe (5).
【０００６】[0006]
【作用】竪型多管式熱交換器のチャンネル（２）内に設
けられる液留室（１）に導入された液状の液化石油ガス
は、混合管（５）の上部仕切板（３）の下面近くに穿孔
された噴出孔（８）から混合管（５）内に噴出される。
一方ガス状の天然ガスはチャンネルの入口管（１１）よ
り流入して、チャンネル（２）内の整流板（６）により
整流化されたのちに、各混合管（５）に均一に流入す
る。混合管（５）においては、流過する天然ガス中に噴
出した液化石油ガスが均一に分散される。そして混合管
（５）を出る混合体は、伝熱管（１５）に流入する。そ
して伝熱管（１５）においては、管外側を流れる低温水
で加熱され、さらには伝熱管（１５）の出口部に挿着さ
れるスパイラレータ（１７）によって伝熱管壁とよく接
触し、所定温度の完全混合気体となって出口管（１８）
より送出される。The liquid liquefied petroleum gas introduced into the liquid distillation chamber (1) provided in the channel (2) of the vertical multitubular heat exchanger is transferred to the upper partition plate (3) of the mixing pipe (5). It is ejected into the mixing pipe (5) from the ejection hole (8) which is formed near the lower surface.
On the other hand, gaseous natural gas flows in through the inlet pipe (11) of the channel, is rectified by the rectifying plate (6) in the channel (2), and then uniformly flows into each mixing pipe (5). In the mixing pipe (5), the liquefied petroleum gas jetted into the flowing natural gas is uniformly dispersed. The mixture exiting the mixing tube (5) then flows into the heat transfer tube (15). In the heat transfer tube (15), the heat transfer tube (15) is heated by low-temperature water flowing outside the tube, and further comes into good contact with the heat transfer tube wall by the spiral (17) inserted into the outlet of the heat transfer tube (15), so that Outlet pipe (18) which becomes a complete mixed gas of temperature
Sent by.
【０００７】液留室（１）内の液化石油ガスの噴出が、
スタートアップ時又はシャツトダン時に天然ガスの流れ
に時間差なしで追従して開始又は停止するためには、図
３に図示されるように噴出孔（８）の位置を上部仕切板
（３）の下面に接近して設け、噴出孔（８）より上部液
留空間をできるだけ少なくすることが必要である。The jet of liquefied petroleum gas in the liquid distillation chamber (1)
In order to start or stop by following the natural gas flow without a time lag at the time of start-up or shirt-done, the position of the ejection hole (8) should be close to the lower surface of the upper partition plate (3) as shown in FIG. It is necessary to make the upper liquid storage space as small as possible from the ejection hole (8).
【０００８】液留室（１）内の液化石油ガスが、低ロー
ド時でも天然ガス中に均一に分散するためには、各混合
管（５）の噴出孔（８）から液化石油ガスが均一に流出
することが必要である。従って低ロード運転が必要な場
合には、液留室（１）を中間仕切板（７）によって複数
室に仕切って、運転ロードに応じて使用する室数を適宜
調節すれば、噴出孔における液化石油ガスの流出速度を
一定以上に確保することにより、均一分散が可能にな
る。 またチャンネル内での天然ガスの偏流を防止する
には、チャンネルの入口管（１１）に対向して多孔板か
らなる整流板を設けることも、有効な手段である。液留
室（１）及び混合管（５）は、上部チャンネル内又は下
部チャンネル内いずれにも設置可能である。上部チャン
ネル内設置の場合、液留室（１）の下部仕切板（４））
と上部管板（１４）の間は，空間になっているが、これ
は管板（１４）を介して低温水の熱が液化石油ガスに伝
熱し、加熱されて沸騰するのを防止するためである。場
合によっては、この空間部に断熱材を充填することも好
ましいことである。下部チャンネル内設置の場合の場合
についても同様のことが言える。In order for the liquefied petroleum gas in the liquid distillation chamber (1) to be uniformly dispersed in the natural gas even under a low load, the liquefied petroleum gas is evenly distributed from the ejection holes (8) of each mixing pipe (5). It is necessary to spill into. Therefore, when low load operation is required, the liquid distilling chamber (1) is divided into a plurality of chambers by the intermediate partition plate (7), and the number of chambers to be used is appropriately adjusted according to the operating load, so that the liquefaction in the ejection holes is By ensuring the outflow rate of petroleum gas above a certain level, uniform dispersion is possible. Further, in order to prevent the non-uniform flow of natural gas in the channel, it is also an effective means to provide a straightening plate composed of a perforated plate facing the inlet pipe (11) of the channel. The liquid distilling chamber (1) and the mixing pipe (5) can be installed in either the upper channel or the lower channel. When installed in the upper channel, lower partition plate (4) of the liquid distillation chamber (1))
There is a space between the upper tube sheet (14) and the upper tube sheet (14) to prevent the heat of the low temperature water from being transferred to the liquefied petroleum gas through the tube sheet (14) and being heated and boiling. Is. In some cases, it is also preferable to fill this space with a heat insulating material. The same applies to the case of installation in the lower channel.
【０００９】[0009]
【実施例】以下図面に基づいて、本考案の実施例につい
て説明する。図１は、液留室を上部チャンネル内に設け
た場合の制御系統を含めた装置の構成図、図２は、液留
室を下部チヤンネル内に設けた場合の増熱装置の組立
図、図３は、図１における液留室内の混合管の拡大図で
ある。図において、３はチャンネル（２）内に水平に液
密的に装着される液留室（１）の上部仕切板であり、４
は上部仕切板の下方に適宜間隔を有してチャンネル
（２）内に水平に液密的に装着される下部仕切板であ
る。７は上部仕切板（３）と下部仕切板（４）の中間位
置に液留室（１）を二室に区分して設けられる中間仕切
板である。５は各仕切板を鉛直方向に貫通して立設さ
れ、一端が伝熱管（１５）に挿入する混合管であり、該
混合管（５）の上部仕切板（３）及び中間仕切板（７）
の下面近くには、それぞれ噴出孔（８，９）が水平に穿
設されている。噴出孔の孔径は小径程好ましいが、実際
には１〜３ミリ程度が好適である。６はチャンネル内に
入口管（１１）に対向して設けられる天然ガス用の整流
板であり、１０〜２０ミリ口径の穿孔が、板全体に均一
に多数穿孔される。１５はシェル（１６）の上下端に固
着される管板（１４，１４）に両端がそれぞれ嵌着され
る伝熱管であり、出口部にはリボン状の熱伝達を促進す
るスパイラレータ（１７）が挿着されている。２１は低
温水供給設備である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of an apparatus including a control system when a liquid distillation chamber is provided in an upper channel, and FIG. 2 is an assembly diagram of a heat increasing device when a liquid distillation chamber is provided in a lower channel, 3 is an enlarged view of the mixing pipe in the liquid distillation chamber in FIG. In the figure, 3 is an upper partition plate of the liquid distilling chamber (1) horizontally and liquid-tightly mounted in the channel (2), and 4
Is a lower partition plate which is horizontally and liquid-tightly mounted in the channel (2) with an appropriate space below the upper partition plate. Reference numeral 7 denotes an intermediate partition plate which is provided at an intermediate position between the upper partition plate (3) and the lower partition plate (4) to divide the liquid distilling chamber (1) into two chambers. Reference numeral 5 denotes a mixing pipe which is erected vertically through each partition plate and one end of which is inserted into the heat transfer pipe (15). The upper partition plate (3) and the intermediate partition plate (7) of the mixing pipe (5). )
The ejection holes (8, 9) are horizontally formed near the lower surface of the. The smaller the diameter of the ejection hole is, the more preferable it is, but actually, the diameter is preferably about 1 to 3 mm. Reference numeral 6 denotes a straightening plate for natural gas provided inside the channel so as to face the inlet pipe (11), and a large number of holes having a diameter of 10 to 20 mm are uniformly formed on the entire plate. Reference numeral 15 is a heat transfer tube having both ends fitted to tube plates (14, 14) fixed to the upper and lower ends of the shell (16), and a spiral (17) for promoting heat transfer in a ribbon shape at the outlet. Has been inserted. Reference numeral 21 is a low temperature water supply facility.
【００１０】次に以上の構成からなる実施例の作用につ
いて説明する。原料の液化天然ガスは、図示はされない
空温式気化器において、大気の自然対流伝熱により加熱
されて気化して大気温度より１０度Ｃ程度低いガス状天
然ガスＮＧになり、本増熱装置のＮＧ入口管（１１）に
供給される。一方液化石油ガスＬＰＧは、図示はされな
い貯蔵設備から、大気温度の液状で熱量調節計（１２）
の調節弁（１２Ａ）を介してＬＰＧ入口管（１３）に供
給される。ガス状で入口管（１１）からチャンネル
（２）部に導入された天然ガスは、整流板（６）の作用
で均一流速になって、各混合管（５）に均等に流入す
る。一方入口管（１３）から液留室（１）中に導入され
た液状の液化石油ガスは、混合管（５）の噴出孔（８，
９）から微粒子状になって天然ガス中に分散される。混
合管（５）を出る混合体は、各伝熱管（１５）に流入す
る。混合体は、伝熱管（１５）内を流過する間に、管外
側を流れる低温水により加熱されてＬＰＧの蒸発潜熱も
供給され、さらにスパイラレータ（１７）によって伝熱
が促進され、所定温度の完全気体になって出口管（１
８）から装置外に送出される。この際、シェル（１６）
側に供給される低温水の流量は、増熱装置を出る天然ガ
スの温度を温度調節計（１９）で検出して所定温度にな
るよう調節弁（１９Ａ）で制御される。Next, the operation of the embodiment having the above configuration will be described. The liquefied natural gas as a raw material is heated by natural convection heat transfer of the atmosphere in an air temperature type vaporizer (not shown) to be vaporized to become gaseous natural gas NG which is lower than the atmospheric temperature by about 10 ° C. NG inlet pipe (11). On the other hand, the liquefied petroleum gas LPG is stored in a storage facility (not shown) and is a liquid at ambient temperature and is a calorimeter (12).
It is supplied to the LPG inlet pipe (13) via the control valve (12A). The natural gas introduced into the channel (2) from the inlet pipe (11) in a gaseous state has a uniform flow velocity by the action of the straightening plate (6), and uniformly flows into each mixing pipe (5). On the other hand, the liquid liquefied petroleum gas introduced into the liquid distilling chamber (1) through the inlet pipe (13) is discharged from the jet holes (8, 8) of the mixing pipe (5).
From 9), it becomes fine particles and is dispersed in natural gas. The mixture exiting the mixing tubes (5) flows into each heat transfer tube (15). While passing through the heat transfer tube (15), the mixture is heated by the low temperature water flowing outside the tube and is also supplied with the latent heat of vaporization of LPG, and further the heat transfer is accelerated by the spiral (17) to a predetermined temperature. It becomes a complete gas of the outlet pipe (1
8) is sent out of the device. At this time, the shell (16)
The flow rate of the low-temperature water supplied to the side is controlled by the control valve (19A) so that the temperature of the natural gas exiting the heat-increasing device is detected by the temperature controller (19) and reaches a predetermined temperature.
【００１１】また低ロード運転が必要な場合には、液留
室へのＬＰＧの入口管（１３）を分岐して設けられる弁
２０Ａ，２０Ｂのいずれかを閉塞すれば、一方の液留室
の噴出孔からのみ流出するので（噴出孔数が減少する）
ＬＰＧの流量が少なくなっても、各噴出孔から均一に流
出する。When low load operation is required, if either of the valves 20A and 20B provided by branching the LPG inlet pipe (13) to the liquid distilling chamber is closed, one of the liquid distilling chambers will be closed. Because it flows out only from the ejection holes (the number of ejection holes decreases)
Even if the flow rate of LPG becomes small, it will flow out uniformly from each ejection hole.
【００１２】[0012]
【考案の効果】以上の構成と作用を有する本考案の装置
によれば、次のような効果が得られる。 （１）液化石油ガスは、各混合管に設けられる噴出孔か
ら均一に天然ガス中に混合されるので、常に安定した熱
量の都市ガスを供給することができる。 （２）混合管の噴出孔は液留室の上部仕切板下面近くに
設けられるので、運転開始時あるいは停止時における液
化石油ガスの供給あるいは停止の時間差遅れがなくな
り、混合体の熱量の変動を防止できる。 （３）從来の液−ガス熱調法と異なり、熱量調節範囲が
広くなるとともに、海水、低温排水等の低品位の熱源で
充分なので、熱経済的である。According to the device of the present invention having the above-mentioned configuration and operation, the following effects can be obtained. (1) Since the liquefied petroleum gas is uniformly mixed with the natural gas through the ejection holes provided in each mixing pipe, it is possible to always supply a stable amount of city gas. (2) Since the jetting holes of the mixing pipe are provided near the lower surface of the upper partition plate of the liquid distilling chamber, there is no delay in the supply or stop of liquefied petroleum gas at the start or stop of the operation, and the fluctuation of the heat quantity of the mixture is suppressed. It can be prevented. (3) Unlike the conventional liquid-gas heat regulation method, the heat quantity control range is wide, and a low-grade heat source such as seawater or low-temperature drainage is sufficient, which is thermoeconomic.
【図１】液留室を上部チャンネル内に設けた場合の制御
系統を含めた装置構成図FIG. 1 is a device configuration diagram including a control system when a liquid storage chamber is provided in an upper channel
【図２】液留室を下部チャンネル内に設けた場合の装置
組立図。FIG. 2 is an assembly view of an apparatus when a liquid storage chamber is provided in a lower channel.
【図３】図１における液留室内の混合管の拡大図。FIG. 3 is an enlarged view of a mixing pipe in the liquid distillation chamber in FIG.
１：液留室、２：チャンネル、３：上部仕切板、４：下
部仕切板、５：混合管、６：整流板、７：中間仕切板、
８：噴出孔、９：噴出孔、１１：ＮＧ入口管、１２：熱
量調節計、１３：ＬＰＧ入口管、１４：管板、１５：伝
熱管、１６：シェル、１７：スパイラレータ、１８：Ｎ
Ｇ出口管、１９：温度調節計、２０：弁、２１：低温水
供給設備、ＮＧ：ガス状天然ガス、ＬＰＧ：液化石油ガ
ス、ＨＷ：低温水。1: Liquid distillation chamber, 2: Channel, 3: Upper partition plate, 4: Lower partition plate, 5: Mixing pipe, 6: Rectifying plate, 7: Intermediate partition plate,
8: Jet hole, 9: Jet hole, 11: NG inlet tube, 12: Heat quantity controller, 13: LPG inlet tube, 14: Tube plate, 15: Heat transfer tube, 16: Shell, 17: Spiralator, 18: N
G outlet pipe, 19: temperature controller, 20: valve, 21: low temperature water supply equipment, NG: gaseous natural gas, LPG: liquefied petroleum gas, HW: low temperature water.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 6958−4Ｈ Ｃ１０Ｌ 3/00 Ａ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location 6958-4H C10L 3/00 A
Claims (2)
スを混合して、竪型多管式熱交換器の伝熱管内を流し、
管外側を流れる低温水により加熱する液化天然ガスの増
熱装置において、前記熱交換器の上部又は下部チャンネ
ル（２）内に上部仕切板（３）及び下部仕切板（４）に
よって形成される液留室（１）と、前記上部仕切板と前
記下部仕切板を鉛直方向に貫通して立設され一端が天然
ガスの入口管（１１）に対峙し他端が伝熱管（１５）に
挿入する混合管（５）と、前記混合管の上部仕切板の下
面近くに穿設されるＬＰＧの噴出孔（８）とを具備した
ことを特徴とする液化天然ガスの増熱装置。1. A liquefied natural gas in a gaseous state and a liquefied petroleum gas in a liquid state are mixed and flowed in a heat transfer pipe of a vertical multitubular heat exchanger,
A liquid for forming a liquefied natural gas heating device heated by low-temperature water flowing outside the pipe, which is formed by an upper partition plate (3) and a lower partition plate (4) in an upper or lower channel (2) of the heat exchanger. The standing chamber (1) is vertically pierced through the upper partition plate and the lower partition plate and has one end facing the natural gas inlet pipe (11) and the other end inserted into the heat transfer pipe (15). A heating apparatus for liquefied natural gas, comprising: a mixing pipe (5); and an LPG ejection hole (8) formed near the lower surface of an upper partition plate of the mixing pipe.
おいて、上部仕切板（３）及び下部仕切板（４）の中間
部に設けられる中間仕切板（７）と、混合管（５）の前
記中間仕切板の下面近くに穿設されるＬＰＧの噴出孔
（８）とを具備したことを特徴とする液化天然ガスの増
熱装置。2. The liquefied natural gas heat increasing apparatus according to claim 1, wherein an intermediate partition plate (7) provided at an intermediate portion between the upper partition plate (3) and the lower partition plate (4), and a mixing pipe (5). ) The LPG injection hole (8) provided near the lower surface of the intermediate partition plate in (1) above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3864092U JPH0647003Y2 (en) | 1992-05-13 | 1992-05-13 | Liquefied natural gas heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3864092U JPH0647003Y2 (en) | 1992-05-13 | 1992-05-13 | Liquefied natural gas heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0620445U JPH0620445U (en) | 1994-03-18 |
| JPH0647003Y2 true JPH0647003Y2 (en) | 1994-11-30 |
Family
ID=12530845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3864092U Expired - Lifetime JPH0647003Y2 (en) | 1992-05-13 | 1992-05-13 | Liquefied natural gas heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0647003Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002162185A (en) * | 2000-11-21 | 2002-06-07 | Mitsubishi Kakoki Kaisha Ltd | Heat exchanging device |
-
1992
- 1992-05-13 JP JP3864092U patent/JPH0647003Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002162185A (en) * | 2000-11-21 | 2002-06-07 | Mitsubishi Kakoki Kaisha Ltd | Heat exchanging device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0620445U (en) | 1994-03-18 |
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| EXPY | Cancellation because of completion of term |