JPH08183969A - Method for sensing through panel of unvaporized liquid in open rack type lng vaporizer and apparatus therefor - Google Patents
Method for sensing through panel of unvaporized liquid in open rack type lng vaporizer and apparatus thereforInfo
- Publication number
- JPH08183969A JPH08183969A JP6326770A JP32677094A JPH08183969A JP H08183969 A JPH08183969 A JP H08183969A JP 6326770 A JP6326770 A JP 6326770A JP 32677094 A JP32677094 A JP 32677094A JP H08183969 A JPH08183969 A JP H08183969A
- Authority
- JP
- Japan
- Prior art keywords
- panel
- temperature
- outlet
- liquid leakage
- detected
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
-
- 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
- F28D3/02—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 with tubular conduits
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、オープンラック式ＬＮ
Ｇ気化器或いは二重管式ＬＮＧ気化器等の海水を熱源と
するオープンラック型のＬＮＧ気化器に関するものであ
って、更に詳しくは、複数のパネルの中で何れかのパネ
ルにおいて所謂液抜けの現象が発生した際に、これを自
動的に検出して警報を出すように構成したオープンラッ
ク型ＬＮＧ気化器における液抜けパネルの検知方法及び
その装置に関する。BACKGROUND OF THE INVENTION The present invention relates to an open rack type LN.
The present invention relates to an open rack type LNG vaporizer that uses seawater as a heat source, such as a G vaporizer or a double-tube LNG vaporizer, and more specifically, a so-called liquid drainage in any one of a plurality of panels. The present invention relates to a method and an apparatus for detecting a liquid drop-out panel in an open rack type LNG vaporizer configured to automatically detect an alarm when a phenomenon occurs and issue an alarm.
【０００２】[0002]
【従来の技術】図２は二重管式ＬＮＧ気化器の例であっ
て、１はＬＮＧ送入管、２…は入口配管、３…は気化管
（伝熱管）をパネル状に配列させた気化パネル、４…は
各パネル３において気化した天然ガス（ＮＧ）を送出す
るための出口配管、５はＮＧ送出管、６は海水トラフ、
７はＮＧ送出管５に取り付けられたＮＧ温度検出セン
サ、８は異常自動検知器であって、前記ＮＧ温度検出セ
ンサ７で検出されるＮＧの温度が、一定値以下の場合、
何れかのパネルにおいて液抜け等の異常が発生している
ものと判定して警報器９を駆動する構成である。図３に
おいて、１０はＬＮＧヘッダーであって、この入側は前
記入口配管２…に結ばれている。１１はベント管、１２
はＮＧヘッダーであって、前記出口配管４…に結ばれて
いる。2. Description of the Related Art FIG. 2 shows an example of a double pipe type LNG vaporizer, wherein 1 is an LNG inlet pipe, 2 ... is an inlet pipe, 3 ... is a vaporization pipe (heat transfer pipe) arranged in a panel form. Vaporization panels, 4 ... are outlet pipes for delivering vaporized natural gas (NG) in each panel 3, 5 are NG delivery pipes, 6 is a seawater trough,
7 is an NG temperature detection sensor attached to the NG delivery pipe 5, 8 is an abnormality automatic detector, and when the NG temperature detected by the NG temperature detection sensor 7 is below a certain value,
The alarm device 9 is driven when it is determined that an abnormality such as liquid leakage has occurred in any of the panels. In FIG. 3, 10 is an LNG header, the inlet side of which is connected to the inlet pipes 2 ... 11 is a vent pipe, 12
Is an NG header and is connected to the outlet pipes 4 ...
【０００３】上記従来例の気化器の場合、通常の気化器
全体の出口ガス温度は、ＮＧ温度検出センサ７で検出し
ており、この値が固定値である管理温度（通常０℃）を
下回った場合に、異常自動検知器８が何れかのパネルに
おいて、液抜け等の異常が発生していると判定する。In the case of the vaporizer of the above-mentioned conventional example, the outlet gas temperature of the general vaporizer is detected by the NG temperature detection sensor 7, and this value is lower than the control temperature (normally 0 ° C.) which is a fixed value. In this case, the abnormality automatic detector 8 determines that an abnormality such as liquid leakage has occurred in any of the panels.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記液抜けの
判定方式においては、次のような欠点がある。オープン
ラック型のＬＮＧ気化器は、熱媒である海水の均一な分
配が重要であるが、海水トラフ６への海生物付着等の不
慮の原因により不特定の気化管に対する海水散水量が減
少すると、その気化管はＬＮＧを気化できなくなり、や
がて気化管内が全長に渡って液相となる「液抜け」現象
を生じるようになる。この「液抜け」現象は、当該気化
管の変形・損傷及び気化器からの液滴の逸流を伴う装置
の異常であるが、気化管１本の「液抜け」に対し、気化
器全体の出口温度は２℃程度しか降下しないため、従来
の方法では極端な場合以外は、ほとんどこの「液抜け」
異常を自動検知することはできない。従って現状は、オ
ペレーターの定期的な目視監視により補っているのが実
情である。However, the above-mentioned liquid leakage determination method has the following drawbacks. In the open rack type LNG vaporizer, it is important to evenly distribute seawater, which is a heat medium, but if the amount of seawater sprinkling on an unspecified vaporization pipe decreases due to accidental attachment of sea life to the seawater trough 6, etc. However, the vaporization tube cannot vaporize LNG, and eventually a "liquid escape" phenomenon occurs in which the inside of the vaporization tube becomes a liquid phase over the entire length. This "liquid leakage" phenomenon is an abnormality of the device accompanied by deformation / damage of the vaporization pipe and escape of droplets from the vaporizer. Since the outlet temperature drops only about 2 ° C, the conventional method almost eliminates this "liquid leakage" except in extreme cases.
Abnormalities cannot be detected automatically. Therefore, the current situation is that the operator's regular visual monitoring is used to make up for it.
【０００５】[0005]
【課題を解決するための手段】本発明は、上記課題を解
決するのが目的であって、その構成は次のとおりであ
る。 １．各パネルの出口温度を検出すると共に、この出口温
度が、他のパネルの出口温度との間に一定温度差以上の
温度差がある場合に、当該パネルに液抜けが発生してい
るものと判定するオープンラック型ＬＮＧ気化器におけ
る液抜けパネルの検知方法。 ２．前記１において、各パネルの出口温度を直接検出す
るオープンラック型ＬＮＧ気化器における液抜けパネル
の検知方法。 ３．前記１において、各パネルの出口温度を配管の表面
温度で検出するオープンラック型ＬＮＧ気化器における
液抜けパネルの検知方法。 ４．各パネルの出口流量を検出すると共に、この出口流
量が、他のパネルの出口流量との間に一定流量以上の流
量差がある場合に、当該パネルに液抜けが発生している
ものと判定するオープンラック型ＬＮＧ気化器における
液抜けパネルの検知方法。 ５．前記１又は２又は３又は４において、比較対象パネ
ルを除く全パネルの出口平均温度、又は平均流量を判定
の基準値とするオープンラック型ＬＮＧ気化器における
液抜けパネルの検知方法。 ６．各パネルの出口配管に温度検出センサを取り付けた
こと、前記温度検出センサで検出される天然ガス温度又
は配管の表面温度が、他の出口配管に取り付けられた温
度検出センサで検出される温度との間に一定値以上の差
がある場合に、液抜けが発生しているものと判定するた
めの自動液抜け監視器を設けたこと、を特徴とするオー
プンラック型ＬＮＧ気化器における液抜けパネルの検知
装置。 ７．各パネルの出口配管に流量計を取り付けたこと、前
記流量計で検出される出口配管内を流れる天然ガスの流
量が、他の出口配管に取り付けられた流量計で検出され
る流量との間に一定値以上の差がある場合に、液抜けが
発生しているものと判定して警報信号を出力する自動液
抜け監視器を設けたこと、を特徴とするオープンラック
型ＬＮＧ気化器における液抜けパネルの検知装置。SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems, and the constitution thereof is as follows. 1. While detecting the outlet temperature of each panel, if this outlet temperature has a temperature difference of a certain temperature difference or more with the outlet temperatures of other panels, it is determined that liquid leakage has occurred in the panel. A method for detecting a liquid leakage panel in an open rack type LNG vaporizer. 2. 1. In the above 1, the method for detecting a liquid-releasing panel in an open rack type LNG vaporizer that directly detects the outlet temperature of each panel. 3. 1. In the above-mentioned 1, the method for detecting a liquid-releasing panel in an open rack type LNG vaporizer in which the outlet temperature of each panel is detected by the surface temperature of the pipe. 4. The outlet flow rate of each panel is detected, and when this outlet flow rate has a flow rate difference of a certain amount or more with the outlet flow rates of other panels, it is determined that liquid leakage has occurred in the panel. A method for detecting a liquid leakage panel in an open rack type LNG vaporizer. 5. In 1 or 2 or 3 or 4, the method for detecting a liquid dropout panel in an open rack LNG vaporizer in which the average outlet temperature or the average flow rate of all panels except the comparison target panel is used as a reference value for determination. 6. The temperature detection sensor is attached to the outlet pipe of each panel, and the natural gas temperature or the surface temperature of the pipe detected by the temperature detection sensor is the same as the temperature detected by the temperature detection sensor attached to another outlet pipe. A liquid leakage panel for an open rack type LNG vaporizer, characterized in that an automatic liquid leakage monitor is provided to determine that liquid leakage has occurred when there is a difference of a certain value or more between them. Detection device. 7. A flow meter is attached to the outlet pipe of each panel, and the flow rate of the natural gas flowing in the outlet pipe detected by the flow meter is between the flow rate detected by the flow meter attached to another outlet pipe. Liquid leakage in an open rack type LNG vaporizer, characterized in that an automatic liquid leakage monitor is provided to judge that liquid leakage has occurred and output an alarm signal when there is a difference of a certain value or more. Panel detection device.
【０００６】[0006]
【作用】各出口配管内のＮＧ温度又は流量は、夫々の温
度検出センサ又は流量検出センサにより検出され、この
値は液抜け自動監視器に入力される。自動監視器は、全
体の出口配管の温度又は流量変化を監視しており、この
中で、何れかの出口配管から検出される温度又は流量が
他の出口配管に比較して一定値以上に変化した場合、こ
の出口配管のパネル内の何れか、又はパネル全体の気化
管において液抜けが発生しているものと判定する。この
ときの判定基準は、全体の出口配管の平均値又は例えば
５〜１０枚のパネルの出口配管の平均値であってもよ
く、この基準のとり方は、特に限定しない。但し、数が
少ないと正確度が低下するので、多い方が好ましい。The NG temperature or flow rate in each outlet pipe is detected by the respective temperature detection sensor or flow rate detection sensor, and this value is input to the liquid leakage automatic monitor. The automatic monitor monitors changes in the temperature or flow rate of the entire outlet pipe, in which the temperature or flow rate detected from any of the outlet pipes changes above a certain value compared to other outlet pipes. In this case, it is determined that liquid is leaking in any of the panels of the outlet pipe or in the vaporization pipe of the entire panel. The determination criterion at this time may be the average value of all the outlet pipes or the average value of the outlet pipes of, for example, 5 to 10 panels, and the method of using this criterion is not particularly limited. However, since the accuracy decreases when the number is small, it is preferable that the number is large.
【０００７】[0007]
【実施例】図１に本発明の一実施例を示す。図１におい
て符号の１はＬＮＧ送入管、２…はＬＮＧ入口配管、３
…は気化パネル、４…は出口配管、５はＮＧ送出管、６
はトラフ、７はＮＧ温度検出センサ、８は異常自動検知
器、９は警報器、１３…は前記出口配管４…に夫々取り
付けられた液抜け検知用温度検出センサ、１４は液抜け
自動検知器、１５は液抜け警報器である。FIG. 1 shows an embodiment of the present invention. In FIG. 1, reference numeral 1 is LNG inlet pipe, 2 ... LNG inlet pipe, 3
... is a vaporization panel, 4 is an outlet pipe, 5 is an NG delivery pipe, 6
Is a trough, 7 is an NG temperature detecting sensor, 8 is an abnormal automatic detector, 9 is an alarm device, 13 ... is a temperature detecting sensor for detecting liquid leakage attached to each of the outlet pipes 4 ..., and 14 is an automatic liquid leakage detecting device. , 15 are liquid drop alarms.
【０００８】上記実施例の場合、各出口配管４…のＮＧ
温度は液抜け検知用温度検出センサ１３…で検出され、
液抜け検知器１４は常時この温度の変化を監視してお
り、何れかにおいて、他のセンサ１３…から検知される
平均温度よりも一定値以下の温度低下があった場合、そ
の温度検出センサ１３が取り付けられている出口配管４
…に至るパネル３…内の気化管において液抜けがあるも
のと判定し、この該当パネルを特定して警報器１５から
警報を発する。In the above embodiment, the NG of each outlet pipe 4 ...
The temperature is detected by the liquid drop detection temperature detection sensor 13 ...
The liquid drop detector 14 constantly monitors this change in temperature, and if there is a temperature drop of a certain value or less than the average temperature detected by the other sensors 13 ... Outlet pipe 4 to which is attached
It is judged that there is liquid leakage in the vaporization pipes in the panel 3 leading to ..., the corresponding panel is specified, and the alarm device 15 issues an alarm.
【０００９】なお、上記実施例は、出口配管４…内のＮ
Ｇの温度を直接検出しているが、出口配管４…の表面に
温度検出センサを取り付けて間接的にＮＧ流量を検出し
ても目的を達成できる。In the above embodiment, the N in the outlet pipe 4 ...
Although the temperature of G is directly detected, the object can be achieved by indirectly detecting the NG flow rate by mounting a temperature detection sensor on the surface of the outlet pipe 4.
【００１０】また、液抜け現象が発生すると、その出口
配管４…内のＮＧ流量が増大するので、この変化を流量
計で検出し、平均値と比較して液抜けを検出することも
可能である。この場合、上記実施例の温度検出センサ１
３…の処に流量計を取り付けるものとする。但し、温度
検出センサ１３…或いは流量計の取り付け位置は、出口
配管４…の何れの処でもよいが、出口に近い位置の方
が、管理上からも好ましい。Further, when the liquid leakage phenomenon occurs, the NG flow rate in the outlet pipes 4 increases, so it is possible to detect this change with a flow meter and compare it with the average value to detect the liquid leakage. is there. In this case, the temperature detection sensor 1 of the above embodiment
A flow meter shall be installed at 3 ... However, the mounting position of the temperature detection sensor 13 ... Or the flow meter may be anywhere in the outlet pipe 4 ..., but a position closer to the outlet is preferable from the viewpoint of management.
【００１１】[0011]
【発明の効果】本発明は以上のように、パネルからの出
口配管内のＮＧ温度又は流量を検出し、これを他の平均
値と比較して液抜けの発生を監視し、かつ液抜けの発生
しているパネルを特定できるようにしたので、次の効果
を奏する。 ａ．各パネルの出口温度の相対温度又は流量差による検
知方法であるため、気化器の運転条件による影響を受け
にくく、早期に、かつ確実に不特定パネルの「液抜け」
異常を自動検知することができる。これにより、当該パ
ネル内の気化管の変形・損傷及び気化器の異常運転時間
を最小限に抑えることが可能となる。 ｂ．従来必要であるオペレーター等による現場での定期
的な目視監視が不要となる。 ｃ．異常を自動検知すると同時に「液抜け」等を生じて
いる気化管を含んでいるパネルを特定できるため、状況
確認及び対処をより迅速に行うことができる。As described above, the present invention detects the NG temperature or flow rate in the outlet pipe from the panel, compares it with another average value to monitor the occurrence of liquid leakage, and Since the generated panel can be specified, the following effects can be obtained. a. Since it is a detection method based on the relative temperature of the outlet temperature of each panel or the difference in the flow rate, it is not easily affected by the operating conditions of the carburetor, and the "liquid leakage" of the unspecified panel can be achieved quickly and reliably.
Anomalies can be detected automatically. This makes it possible to minimize the deformation / damage of the vaporization pipe in the panel and the abnormal operation time of the vaporizer. b. The need for regular visual monitoring on site by operators, etc., which is conventionally required, becomes unnecessary. c. Since it is possible to automatically detect the abnormality and specify the panel including the vaporizing tube that is causing "liquid leakage" or the like, the situation can be checked and the action can be taken more quickly.
【図１】本発明に係るオープンラック型ＬＮＧ気化器に
おける液抜けパネルの検知装置の説明図。FIG. 1 is an explanatory diagram of a liquid leakage panel detection device in an open rack type LNG vaporizer according to the present invention.
【図２】従来のオープンラック型ＬＮＧ気化器における
液抜けパネルの検知装置の説明図。FIG. 2 is an explanatory view of a liquid leak panel detection device in a conventional open rack type LNG vaporizer.
【図３】従来の二重管式ＬＮＧ気化器の要部の説明図。FIG. 3 is an explanatory view of a main part of a conventional double-tube LNG vaporizer.
１ ＬＮＧ送入管 ２… 入口配管 ３… 気化パネル ４… 出口配管 ５ ＮＧ送出管 ６ トラフ ７ 温度検出センサ ８ 異常自動監視器 ９ 警報器 １０ ＬＮＧヘッダー １１ ベント管 １２ ＮＧヘッダー １３… 液抜け監視用温度検出センサ １４ 液抜け自動監視器 １５ 警報器 1 LNG inlet pipe 2 ... Inlet pipe 3 ... Vaporization panel 4 ... Outlet pipe 5 NG delivery pipe 6 Trough 7 Temperature detection sensor 8 Abnormal automatic monitor 9 Alarm device 10 LNG header 11 Vent pipe 12 NG header 13 ... For liquid leakage monitoring Temperature detection sensor 14 Liquid loss automatic monitor 15 Alarm device
───────────────────────────────────────────────────── フロントページの続き (72)発明者 関口 優 神奈川県平塚市宮松町15−10−718 (72)発明者 笠原 進一 神奈川県横浜市磯子区中原４−４−11− 204 (72)発明者 庄谷 仁延 兵庫県尼崎市扶桑町１番10号 住友精密工 業株式会社内 (72)発明者 秋山 優 兵庫県尼崎市扶桑町１番10号 住友精密工 業株式会社内 (72)発明者 外池 嘉朗 兵庫県尼崎市扶桑町１番10号 住友精密工 業株式会社内 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Yu Sekiguchi 15-10-718 Miyamatsu-cho, Hiratsuka-shi, Kanagawa Prefecture (72) Inventor Shin-ichi Kasahara 4-4-11-204 Nakahara, Isogo-ku, Yokohama-shi, Kanagawa (72) Invention Person Hitoshi Shoya 1-10 Fuso-cho Amagasaki-shi Hyogo Prefecture Sumitomo Precision Industries Ltd. (72) Inventor Yu Akiyama 1-10 Fuso-cho Amagasaki City Hyogo Sumitomo Precision Industries Ltd. (72) Invention Person Sotoike Yoshiro Sumitomo Precision Industry Co., Ltd. 1-10 Fusocho Amagasaki City Hyogo Prefecture
Claims (7)
この出口温度が、他のパネルの出口温度との間に一定温
度差以上の温度差がある場合に、当該パネルに液抜けが
発生しているものと判定するオープンラック型ＬＮＧ気
化器における液抜けパネルの検知方法。1. An outlet temperature of each panel is detected, and
Liquid leakage in an open rack type LNG vaporizer that determines that liquid leakage has occurred in the panel when this outlet temperature has a temperature difference of a certain temperature difference or more with the outlet temperatures of other panels. Panel detection method.
を直接検出するオープンラック型ＬＮＧ気化器における
液抜けパネルの検知方法。2. The method for detecting a liquid dropout panel in an open rack type LNG vaporizer according to claim 1, which directly detects the outlet temperature of each panel.
を配管の表面温度で検出するオープンラック型ＬＮＧ気
化器における液抜けパネルの検知方法。3. The method according to claim 1, wherein the outlet temperature of each panel is detected by the surface temperature of the pipe.
この出口流量が、他のパネルの出口流量との間に一定流
量以上の流量差がある場合に、当該パネルに液抜けが発
生しているものと判定するオープンラック型ＬＮＧ気化
器における液抜けパネルの検知方法。4. The outlet flow rate of each panel is detected, and
A liquid drainage panel in an open rack type LNG vaporizer that determines that liquid drainage has occurred in the panel when there is a difference in flow rate between the outlet flow rate of another panel and the outlet flow rate of another panel by a certain amount or more. Detection method.
比較対象パネルを除く全パネルの出口平均温度、又は平
均流量を判定の基準値とするオープンラック型ＬＮＧ気
化器における液抜けパネルの検知方法。5. The method according to claim 1, 2 or 3 or 4,
A method for detecting a liquid leakage panel in an open rack type LNG vaporizer, which uses the average outlet temperature or the average flow rate of all panels except the comparison target panel as a reference value for determination.
取り付けたこと、 前記温度検出センサで検出される天然ガス温度又は配管
の表面温度が、他の出口配管に取り付けられた温度検出
センサで検出される温度との間に一定値以上の差がある
場合に、液抜けが発生しているものと判定するための自
動液抜け監視器を設けたこと、 を特徴とするオープンラック型ＬＮＧ気化器における液
抜けパネルの検知装置。6. A temperature detection sensor is attached to an outlet pipe of each panel, and a natural gas temperature detected by the temperature detection sensor or a surface temperature of the pipe is detected by a temperature detection sensor attached to another outlet pipe. An open rack type LNG vaporizer characterized in that an automatic liquid leakage monitor is provided to determine that liquid leakage has occurred when there is a difference of a certain value or more from the temperature Detector for liquid leakage panel in.
たこと、 前記流量計で検出される出口配管内を流れる天然ガスの
流量が、他の出口配管に取り付けられた流量計で検出さ
れる流量との間に一定値以上の差がある場合に、液抜け
が発生しているものと判定して警報信号を出力する自動
液抜け監視器を設けたこと、 を特徴とするオープンラック型ＬＮＧ気化器における液
抜けパネルの検知装置。7. A flow meter is attached to the outlet pipe of each panel, and the flow rate of the natural gas flowing through the outlet pipe detected by the flow meter is detected by a flow meter attached to another outlet pipe. An open rack type LNG, which is equipped with an automatic liquid leakage monitor that outputs an alarm signal when it judges that liquid leakage has occurred when there is a difference of a certain value or more from the flow rate. A device for detecting liquid leakage panels in a vaporizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32677094A JP3928886B2 (en) | 1994-12-28 | 1994-12-28 | Method and apparatus for detecting liquid leakage panel in open rack type LNG vaporizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32677094A JP3928886B2 (en) | 1994-12-28 | 1994-12-28 | Method and apparatus for detecting liquid leakage panel in open rack type LNG vaporizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08183969A true JPH08183969A (en) | 1996-07-16 |
| JP3928886B2 JP3928886B2 (en) | 2007-06-13 |
Family
ID=18191506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32677094A Expired - Fee Related JP3928886B2 (en) | 1994-12-28 | 1994-12-28 | Method and apparatus for detecting liquid leakage panel in open rack type LNG vaporizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3928886B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105331410A (en) * | 2015-12-07 | 2016-02-17 | 赵丽杰 | Overall process method for preparing gas from liquid light dydrocarbon |
-
1994
- 1994-12-28 JP JP32677094A patent/JP3928886B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105331410A (en) * | 2015-12-07 | 2016-02-17 | 赵丽杰 | Overall process method for preparing gas from liquid light dydrocarbon |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3928886B2 (en) | 2007-06-13 |
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