JP2554900Y2 - Underwater combustion type vaporizer - Google Patents
Underwater combustion type vaporizerInfo
- Publication number
- JP2554900Y2 JP2554900Y2 JP1992025460U JP2546092U JP2554900Y2 JP 2554900 Y2 JP2554900 Y2 JP 2554900Y2 JP 1992025460 U JP1992025460 U JP 1992025460U JP 2546092 U JP2546092 U JP 2546092U JP 2554900 Y2 JP2554900 Y2 JP 2554900Y2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- pipe
- supply pipe
- header
- heat exchanger
- 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
Description
【０００１】[0001]
【産業上の利用分野】この考案は、液化天然ガス及び／
または液化石油ガスの水中燃焼式気化装置の改良に係
り、運転停止時に気化装置内の残留液を気化させて、運
転再開時の熱量変動を極力少なくなるように構成した水
中燃焼式気化装置に関する。This invention relates to liquefied natural gas and / or
In addition, the present invention relates to an improvement of an underwater combustion type vaporizer for liquefied petroleum gas, and relates to an underwater combustion type vaporizer configured to vaporize a residual liquid in the vaporizer at the time of operation stop and minimize a change in heat quantity at the time of restart of operation.
【０００２】[0002]
【従来の技術】液化天然ガスの気化装置として多用され
るオープンラック型気化装置は、例えば直径方向に一対
のフィンを突出させたフィンチューブをフィン方向に配
列して一枚のパネル状となし、その上下端部にヘッダー
タンクを設けて熱交換パネルを構成し、当該パネルを複
数連立配置して、熱交換パネルの上方に配設した散水器
より熱媒体の海水を熱交換パネル面に流下させる構造で
ある。2. Description of the Related Art An open rack type vaporizer often used as a liquefied natural gas vaporizer is, for example, a fin tube having a pair of fins projecting in a diameter direction arranged in the fin direction to form a single panel. A heat exchange panel is formed by providing a header tank at the upper and lower ends thereof, a plurality of the panels are arranged in parallel, and seawater of the heat medium flows down to the heat exchange panel surface from a sprinkler disposed above the heat exchange panel. Structure.
【０００３】通常はオープンラック型気化装置で、都市
ガス等の需要を満たすが不足する場合や緊急用として水
中燃焼式気化装置（サブマージドベーパライザー）が付
設使用されている。この水中燃焼式気化装置は、図２に
示す如く、バーナー１１及び燃焼室１４で発生させた燃
焼ガスをスパージパイプ１５から水槽１内に噴出させ、
水２を中間熱媒体として、水槽１内に水没させて配設し
た熱交換器５内を流れる液化天然ガスを加熱する構成か
らなる気化装置である。[0003] Usually, an open rack type vaporizer is provided with a submerged vaporizer (submerged vaporizer) for meeting the demand for city gas or the like but insufficient or for emergency use. As shown in FIG. 2, the underwater combustion type vaporizer blows out combustion gas generated in the burner 11 and the combustion chamber 14 from the sparge pipe 15 into the water tank 1,
This is a vaporizer configured to heat liquefied natural gas flowing through a heat exchanger 5 disposed in the water tank 1 with water 2 as an intermediate heat medium.
【０００４】熱交換器５は図示では簡略化してあるが、
ヘッダータンクと管束状のチューブ５ａから構成され、
チューブ５ａは直管を複数回Ｕターンさせたもので、下
部ヘッダー５ｃから混合液が流入し、チューブ５ａを上
昇しながら加熱されて上部ヘッダー５ｂから気化ガスと
して送出される。また、気化ガスの熱量を一定に保持す
るため、液化天然ガス（ＬＮＧ）と液化石油ガス（ＬＰ
Ｇ）とを液体状態で混合してこれを気化させているもの
もある。Although the heat exchanger 5 is simplified in the figure,
It is composed of a header tank and a tube bundle tube 5a,
The tube 5a is a straight tube having a plurality of U-turns. The mixed solution flows in from the lower header 5c, is heated while moving up the tube 5a, and is sent out as a vaporized gas from the upper header 5b. In order to keep the calorific value of the vaporized gas constant, liquefied natural gas (LNG) and liquefied petroleum gas (LP)
And G) in a liquid state to vaporize this.
【０００５】水中燃焼式気化装置は、図２に示す如く、
通常水槽１の半分程度を地下に埋設した半地下式構造で
あり、気化装置へ液化天然ガスを供給する配管７は地上
付近の高さに配置してあり、前記の液化石油ガスとの混
合器８や運転停止のための液化天然ガス及び液化石油ガ
スの遮断弁９，１０も同レベルに配置され、水槽１近く
で立ち上がりその後水槽１内に侵入する気化装置のヘッ
ダー配管６に接続される構成からなる。[0005] As shown in FIG.
Normally, it is a semi-underground structure in which about half of the water tank 1 is buried underground, and a pipe 7 for supplying liquefied natural gas to the vaporizer is arranged at a height near the ground, and a mixer with the liquefied petroleum gas is used. 8 and the shutoff valves 9 and 10 for liquefied natural gas and liquefied petroleum gas for shutting down operation are also arranged at the same level, and are connected to the header pipe 6 of the vaporizer which rises near the water tank 1 and then enters the water tank 1. Consists of
【０００６】アップフローの気化形態からなる従来の熱
交換器５は、起動時に下部ヘッダー５ｂに液化天然ガス
及び／または液化石油ガスが充填されるまでの間、気化
が容易な軽質分から選択的に蒸発するため、気化ガスに
熱量ハンチングが発生して、設定熱量を超えるガスが送
出される。また、運転停止時にも下部ヘッダー内に蒸発
し難い重質分が滞留するため、再び熱量ハンチングを増
長させる問題がある。[0006] The conventional heat exchanger 5 in the upflow vaporization mode selectively uses light components that are easily vaporized until the lower header 5b is filled with liquefied natural gas and / or liquefied petroleum gas at startup. Due to evaporation, calorific value hunting occurs in the vaporized gas, and gas exceeding the set calorific value is delivered. In addition, even when the operation is stopped, the heavy component that hardly evaporates stays in the lower header, so that there is a problem that the calorific value hunting is increased again.
【０００７】同様に、液化天然ガス及び液化石油ガスの
遮断弁を閉じて運転を停止すると、混合器から気化装置
までの間の配管内に液が残留することになる。この残留
した混合液は配管周囲の大気の熱により次第に蒸発する
が、液化石油ガスが混入した液化天然ガスは多成分で構
成されているため、その構成成分の軽質分から蒸発が始
まり、時間経過とともに残留液が重質化する。Similarly, if the shut-off valves for the liquefied natural gas and the liquefied petroleum gas are closed and the operation is stopped, the liquid will remain in the pipe from the mixer to the vaporizer. The remaining liquid mixture evaporates gradually due to the heat of the atmosphere around the pipe, but liquefied natural gas mixed with liquefied petroleum gas is composed of multiple components. The remaining liquid becomes heavier.
【０００８】次に遮断弁を開き運転を再開すると、まず
重質残留液が気化装置内に入り気化されるため、熱量が
高い重質分が気化ガスの設定熱量を変動させることにな
る。一般にガスの熱量が変動すると、火炎が大きくなっ
たり不完全燃焼を起こす恐れがあり好ましくなく、特に
都市ガスでは熱量変動がなく一定化していることが要求
される。Next, when the shut-off valve is opened and the operation is resumed, the heavy residual liquid first enters the vaporizer and is vaporized, so that the heavy component having a high calorific value fluctuates the set calorific value of the vaporized gas. In general, when the calorific value of the gas fluctuates, the flame may become large or incomplete combustion may occur, which is not preferable. In particular, city gas is required to have a constant calorific value without fluctuation.
【０００９】この考案は、水中燃焼式気化装置におい
て、起動時の熱量ハンチングの発生を防止でき、また熱
交換器としての性能を良好に保持し、運転停止時におい
てその残留液による運転再開時の熱量変動を極力少なく
なるように構成した液化天然ガス及び／または液化石油
ガスの水中燃焼式気化装置の提供を目的としている。According to the present invention, in a submerged combustion type vaporizer, it is possible to prevent the occurrence of heat hunting at the time of start-up, maintain good performance as a heat exchanger, and at the time of restarting the operation due to the residual liquid when the operation is stopped. It is an object of the present invention to provide an underwater combustion type vaporizer for liquefied natural gas and / or liquefied petroleum gas configured to minimize fluctuations in calorific value.
【００１０】[0010]
【課題を解決するための手段】この考案は、バーナーで
発生させた燃焼ガスを水槽内に噴出させ、水槽内に水没
配設した熱交換器内を流れる液化天然ガス及び／または
液化石油ガスを加熱する水中燃焼式気化装置において、（イ）装置内の熱交換器へ当該液化ガスを供給する供給
管を少なくとも水槽の水面高さと同等以上の高さに配置
し、 （ロ）熱交換器のヘッダー配管に接続する直前で少なく
とも供給管直径高さだけ上昇配置し、 （ハ）かつ上昇配置した供給管部をバイパスする供給管
より小径のドレン管をヘッダー配管へ接続したことを特
徴とする液化天然ガスの水中燃焼式気化装置である。 According to the present invention, a combustion gas generated by a burner is jetted into a water tank, and liquefied natural gas and / or liquefied petroleum gas flowing through a heat exchanger disposed in the water tank are submerged. In the heated underwater combustion type vaporizer, (a) supply of the liquefied gas to the heat exchanger in the system
Pipes should be at least as high as the water level in the aquarium
And less immediately before connecting to the header pipe (b) heat exchanger
Both increases disposed only supply pipe diameter height, the supply pipe for bypassing the supply tube portion elevated arranged and (c)
Note that a smaller diameter drain pipe was connected to the header pipe.
This is a submerged combustion type vaporizer for liquefied natural gas.
【００１１】[0011]
【００１２】[0012]
【作用】この考案による水中燃焼式気化装置は、液化天
然ガス及び／または液化石油ガスを熱交換器の上部ヘッ
ダーから流入させ、蛇行配置させたチューブ内を下降さ
せながら加熱して下部ヘッダーから気化ガスとして送出
可能な構成からなるダウンフロー気化形態からなる熱交
換器を採用したことにより、上部ヘッダー内の混合液が
流下し易く滞留しないため、起動時並びに停止後の再起
動時における熱量ハンチングが防止あるいは軽減され
る。The submerged combustion type vaporizer according to the present invention allows liquefied natural gas and / or liquefied petroleum gas to flow from the upper header of the heat exchanger and vaporizes from the lower header by heating while lowering the meandering tubes. The adoption of a heat exchanger in the form of a down-flow vaporizer that can be sent out as a gas allows the mixed solution in the upper header to flow down and does not stay. Prevented or reduced.
【００１３】また、この考案による水中燃焼式気化装置
は、液化天然ガスと液化石油ガスを混合させる場合、上
記構成（イ）と（ロ）により混合器付近の配管内に液化
ガスを充満させることができ、良好な混合状態が得ら
れ、構成（ロ）の上昇高さを必要最小限にすることがで
きるため、残留液量を極力減らすことができる。さらに
構成（ハ）のドレン管により遮断弁閉止後の供給管内の
残留液が重力にて気化装置のヘッダー配管へ流入して残
留液が無くなり、ヘッダー配管へ流下した残留液は水槽
内の保有熱により経時的に気化される。Further, in the underwater combustion type vaporizer according to the present invention, when the liquefied natural gas and the liquefied petroleum gas are mixed, the liquefied gas is filled in the pipe near the mixer by the above configurations (a) and (b). As a result, a good mixing state can be obtained, and the height of the structure (b) can be minimized, so that the amount of residual liquid can be reduced as much as possible. Further, the residual liquid in the supply pipe after the shut-off valve is closed by the drain pipe having the configuration (c) flows into the header pipe of the vaporizer by gravity due to gravity, and the residual liquid is eliminated, and the residual liquid flowing down to the header pipe is retained heat in the water tank. Is vaporized over time.
【００１４】[0014]
【実施例】この考案による水中燃焼式気化装置の一例を
図面に基づいて詳述する。なお、ここでは液化天然ガス
に液化石油ガスを混合する場合を例にカロリーハンチン
グを防止した構成を説明するが、さらに液化天然ガスと
液化石油ガスの混合状態を良好にする構成を説明する。
この考案による水中燃焼式気化装置は液化天然ガスと液
化石油ガスのいずれの気化にも利用できることは前述の
とおりである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of an underwater combustion type vaporizer according to the present invention will be described in detail with reference to the drawings. Here, a configuration in which caloric hunting is prevented will be described by taking as an example a case where liquefied petroleum gas is mixed with liquefied natural gas. However, a configuration that further improves the mixing state of liquefied natural gas and liquefied petroleum gas will be described.
As described above, the underwater combustion type vaporizer according to the present invention can be used for vaporization of either liquefied natural gas or liquefied petroleum gas.
【００１５】熱交換器５及びヘッダー配管６を除く水槽
１などの気化装置は前述した図２の構成例と同等であ
る。なお、図１において、３は上面板、４は排気筒、１
２は燃料供給管、１３は空気管、１６は揚水管１７を用
いた燃焼室１４の冷却器、２５は液化石油ガス供給管で
ある。熱交換器５は、直管を複数回Ｕターンさせたチュ
ーブ５ａの上端に配置した上部ヘッダー５ｂに、液化ガ
ス供給管２０からのヘッダー配管６が接続され、液化石
油ガスが混入した液化天然ガスの混合液が供給される構
成からなる。上部ヘッダー５ｂからの混合液は、チュー
ブ５ａを流下しながら加熱され、下部ヘッダー５ｃから
気化ガスとして送出される。The vaporizers such as the water tank 1 except for the heat exchanger 5 and the header pipe 6 are the same as those in the configuration example of FIG. In FIG. 1, 3 is an upper plate, 4 is an exhaust pipe, 1
2 is a fuel supply pipe, 13 is an air pipe, 16 is a cooler of the combustion chamber 14 using a pumping pipe 17, and 25 is a liquefied petroleum gas supply pipe. In the heat exchanger 5, a header pipe 6 from a liquefied gas supply pipe 20 is connected to an upper header 5b arranged at the upper end of a tube 5a in which a straight pipe is turned multiple times, and liquefied natural gas mixed with liquefied petroleum gas is connected. Is supplied. The mixed solution from the upper header 5b is heated while flowing down the tube 5a, and is sent out from the lower header 5c as a vaporized gas.
【００１６】図１に示す例では液化ガス供給管２０の基
準高さを気化装置の上面板３より高く、地面より所要高
さ（Ｈ）の位置に配設した構成である。液化ガス供給管
２０は液化天然ガス（ＬＮＧ）の遮断弁２２の下流側に
液化石油ガス（ＬＰＧ）との混合器２１が設けてあり、
熱交換器５のヘッダー配管６と混合器２１の下流側間に
は、基準高さ（Ｈ）より供給管直径高さ以上の高さ
（ｈ）だけ上昇配置させた上昇部２３を設けてある。In the example shown in FIG. 1, the reference height of the liquefied gas supply pipe 20 is higher than the upper plate 3 of the vaporizer and is arranged at a required height (H) above the ground. The liquefied gas supply pipe 20 is provided with a mixer 21 for liquefied petroleum gas (LPG) downstream of a shutoff valve 22 for liquefied natural gas (LNG),
Between the header pipe 6 of the heat exchanger 5 and the downstream side of the mixer 21, there is provided an ascending portion 23 which is arranged to be higher than the reference height (H) by a height (h) which is equal to or more than the supply pipe diameter height. .
【００１７】ヘッダー配管６に接続する直前で少なくと
も供給管直径高さだけ上昇配置したのは、同部が基準高
さ（Ｈ）のままであると、混合器２１の供給管内の下半
分に液化天然ガスが流れて、その上に液化石油ガスが落
下した状態の混合液がそのままヘッダー配管に供給さ
れ、両液体を均一に混合することができないためであ
る。また、上昇高さ（ｈ）は残留液量を極力減らすこと
ができるよう、液化天然ガスと液化石油ガスが良好な混
合状態を維持できる必要最小限にする必要がある。Immediately before connection to the header pipe 6, the arrangement is raised at least by the height of the supply pipe diameter. If the same part remains at the reference height (H), liquefaction occurs in the lower half in the supply pipe of the mixer 21. This is because a mixed liquid in a state where natural gas flows and liquefied petroleum gas falls thereon is supplied to the header pipe as it is, and the two liquids cannot be mixed uniformly. In addition, the rising height (h) needs to be minimized so that the liquefied natural gas and the liquefied petroleum gas can be maintained in a good mixed state so that the residual liquid amount can be reduced as much as possible.
【００１７】さらに、液化ガス供給管２０には上昇部２
３をバイパスしてヘッダー配管６に供給管より小径のド
レン管２４を接続してある。Further, the liquefied gas supply pipe 20 has a rising portion 2
3, a drain pipe 24 having a smaller diameter than the supply pipe is connected to the header pipe 6.
【００１８】以上の構成において、液化天然ガス（ＬＮ
Ｇ）及び液化石油ガス（ＬＰＧ）の遮断弁２２，２６を
閉じて運転を停止した場合、供給管２０の上昇部２３は
必要最小限の高さであるため残留液量が少なく、かつド
レン管２４を設けたことにより、停止後の残留液が気化
装置のヘッダー配管へ重力により自然流下して供給管２
０及び上昇部２３内には残留液が無くなる。また、ヘッ
ダー配管６へ流下した残留液は、熱交換器５の上部ヘッ
ダー５ｂに入り、直ちにチューブ５ａを流下するため、
水槽１内の保有熱により経時的に加熱されて気化され、
下部ヘッダー５ｃから気化ガスとして送出される。すな
わち、熱交換器５において、ダウンフローの気化形態を
とるために上部ヘッダー５ｂ内に混合液が滞留すること
がない。In the above configuration, liquefied natural gas (LN
G) and liquefied petroleum gas (LPG), when the shut-off valves 22 and 26 are closed to stop the operation, the rising portion 23 of the supply pipe 20 has a minimum necessary height, so that the residual liquid amount is small and the drain pipe 24, the residual liquid after the stop naturally flows down by gravity to the header pipe of the vaporizer, and the supply pipe 2
0 and the residual liquid are eliminated in the rising portion 23. Further, the residual liquid flowing down to the header pipe 6 enters the upper header 5b of the heat exchanger 5 and immediately flows down the tube 5a.
It is heated and vaporized over time by the retained heat in the water tank 1,
It is sent out as a vaporized gas from the lower header 5c. That is, in the heat exchanger 5, the mixed solution does not stay in the upper header 5b due to the downflow vaporization mode.
【００１９】[0019]
【考案の効果】この考案による水中燃焼式気化装置は、
実施例に明らかなように運転停止後の供給管内及び熱交
換器のヘッダー内の残留液がほとんどないため、運転再
開時に気化ガスの熱量変動がなくなる。さらに、液化ガ
ス供給管を所定の高さに配置しかつ供給管直径高さ程度
の上昇部を設けた構成を付加することにより、運転時の
液化天然ガスと液化石油ガスとの混合状態を一定に保持
することができる。[Effect of the invention] The underwater combustion type vaporizer according to the invention is:
As is clear from the embodiment, since there is almost no residual liquid in the supply pipe after the operation is stopped and in the header of the heat exchanger, the calorific value of the vaporized gas does not fluctuate when the operation is restarted. Further, by adding a configuration in which the liquefied gas supply pipe is arranged at a predetermined height and provided with an ascending portion about the height of the supply pipe diameter, the mixing state of liquefied natural gas and liquefied petroleum gas during operation is kept constant. Can be held.
【図１】この考案による水中燃焼式気化装置の構成を示
す水槽の縦断説明図である。FIG. 1 is a longitudinal sectional view of a water tank showing a configuration of an underwater combustion type vaporizer according to the present invention.
【図２】従来の水中燃焼式気化装置の構成を示す水槽の
縦断説明図である。FIG. 2 is a vertical sectional view of a water tank showing a configuration of a conventional underwater combustion type vaporizer.
１ 水槽 ２ 水 ３ 上面板 ４ 排気筒 ５ 熱交換器 ５ａ チューブ ５ｂ 上部ヘッダー ５ｃ 下部ヘッダー ６ ヘッダー配管 ７ 配管 ８ 混合器 ９，１０ 遮断弁 １１ バーナー １２ 燃料供給管 １３ 空気管 １４ 燃焼室 １５ スパージパイプ １６ 冷却器 １７ 揚水管 ２０ 液化ガス供給管 ２１ 混合器 ２２，２６ 遮断弁 ２３ 上昇部 ２４ ドレン管 DESCRIPTION OF SYMBOLS 1 Water tank 2 Water 3 Top plate 4 Exhaust pipe 5 Heat exchanger 5a Tube 5b Upper header 5c Lower header 6 Header piping 7 Piping 8 Mixer 9,10 Shutoff valve 11 Burner 12 Fuel supply pipe 13 Air pipe 14 Combustion chamber 15 Sparge pipe 16 Cooler 17 Pumping pipe 20 Liquefied gas supply pipe 21 Mixer 22, 26 Shut-off valve 23 Up section 24 Drain pipe
───────────────────────────────────────────────────── フロントページの続き (72)考案者 佐原 一彌 兵庫県尼崎市扶桑町１番10号 住友精密 工業株式会社内 (56)参考文献 特開 平２−57799（ＪＰ，Ａ) 実公 昭62−30637（ＪＰ，Ｙ２) ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Kazuya Sahara 1-10 Fuso-cho, Amagasaki-shi, Hyogo Sumitomo Precision Industries, Ltd. (56) References JP-A-2-57799 (JP, A) 62-30637 (JP, Y2)
Claims (1)
に噴出させ、水槽内に水没配設した熱交換器内を流れる
液化天然ガス及び／または液化石油ガスを加熱する水中
燃焼式気化装置において、装置内の熱交換器へ当該液化
ガスを供給する供給管を少なくとも水槽の水面高さと同
等以上の高さに配置し、熱交換器のヘッダー配管に接続
する直前で少なくとも供給管直径高さだけ上昇配置し、
かつ上昇配置した供給管部をバイパスする供給管より小
径のドレン管をヘッダー配管へ接続したことを特徴とす
る液化天然ガスの水中燃焼式気化装置。An underwater combustion type vaporizer for injecting combustion gas generated by a burner into a water tank and heating liquefied natural gas and / or liquefied petroleum gas flowing in a heat exchanger disposed in the water tank. Liquefaction to the heat exchanger in the equipment
Make sure that the gas supply pipe is at least as high as the water level in the tank.
Above the same height and connected to the header pipe of the heat exchanger
Immediately before, it is arranged to rise at least by the height of the supply pipe diameter,
And smaller than the supply pipe that bypasses the supply pipe section
An underwater combustion type vaporizer for liquefied natural gas, characterized in that a drain pipe having a diameter is connected to a header pipe .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992025460U JP2554900Y2 (en) | 1992-03-25 | 1992-03-25 | Underwater combustion type vaporizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992025460U JP2554900Y2 (en) | 1992-03-25 | 1992-03-25 | Underwater combustion type vaporizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0577700U JPH0577700U (en) | 1993-10-22 |
| JP2554900Y2 true JP2554900Y2 (en) | 1997-11-19 |
Family
ID=12166647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992025460U Expired - Lifetime JP2554900Y2 (en) | 1992-03-25 | 1992-03-25 | Underwater combustion type vaporizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2554900Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4510478B2 (en) * | 2004-01-29 | 2010-07-21 | 株式会社石井鐵工所 | Emergency propane / air gas production equipment |
| JP6161922B2 (en) * | 2013-03-12 | 2017-07-12 | 住友精密工業株式会社 | Underwater combustion type vaporizer |
| JP6393028B2 (en) * | 2013-09-10 | 2018-09-19 | 住友精密工業株式会社 | Underwater combustion type vaporizer |
| JP6616615B2 (en) * | 2015-07-28 | 2019-12-04 | 住友精密工業株式会社 | Underwater combustion type vaporizer, underwater combustion type vaporizer operation method, and underwater combustion type vaporizer design method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6230637U (en) * | 1985-08-09 | 1987-02-24 | ||
| JP2594522B2 (en) * | 1988-08-23 | 1997-03-26 | カグラインベスト株式会社 | Liquefied gas evaporator |
-
1992
- 1992-03-25 JP JP1992025460U patent/JP2554900Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0577700U (en) | 1993-10-22 |
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