JPS5829359Y2 - Concentration prevention device in liquefied natural gas vaporizer - Google Patents
Concentration prevention device in liquefied natural gas vaporizerInfo
- Publication number
- JPS5829359Y2 JPS5829359Y2 JP571680U JP571680U JPS5829359Y2 JP S5829359 Y2 JPS5829359 Y2 JP S5829359Y2 JP 571680 U JP571680 U JP 571680U JP 571680 U JP571680 U JP 571680U JP S5829359 Y2 JPS5829359 Y2 JP S5829359Y2
- Authority
- JP
- Japan
- Prior art keywords
- natural gas
- liquefied natural
- vaporizer
- prevention device
- pipe
- 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
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Description
【考案の詳細な説明】
本考案は、液化天然ガスの気化器における濃縮防止装置
に関するものである。[Detailed Description of the Invention] The present invention relates to a concentration prevention device in a liquefied natural gas vaporizer.
液化天然ガス（ＬＮＧ）をガス化するための気化器及び
この気化器に至るＬＮＧの人品管、継手部分などは、待
機中においても急速起動による気冷が原因のボライング
の発生に備えて常時冷却を行っている。The vaporizer for gasifying liquefied natural gas (LNG), as well as the LNG pipes and joints leading to the vaporizer, are constantly maintained, even during standby, in preparation for the occurrence of bolling caused by air cooling caused by rapid startup. Cooling is in progress.
この冷却方法を説明すると、第１図に示すように、気化
器１に至る人間管２内に負荷制御弁３をバイパスするバ
イパス路４を設け、このバイパス路４内に流量制御弁５
を取り付け、気化器１の運転を停止している間は、負荷
制御弁３を閉じ、流量Ｔ５Ｉ御弁５を気化器１側り人品
管２′内に取り付けたＬＮＧ配管の温度検出器６により
自動制御して、常時少量の冷却用ＬＮＧな人品管２゜２
′及び気化器１内に導入する方法である。To explain this cooling method, as shown in FIG.
is installed, and while the operation of the vaporizer 1 is stopped, the load control valve 3 is closed, and the flow rate T5I control valve 5 is installed in the temperature sensor 6 of the LNG pipe installed in the personnel pipe 2' on the side of the vaporizer 1. A small amount of LNG for cooling is automatically controlled by
' and a method of introducing it into the vaporizer 1.
上記従来の方法の欠点は、冷却用に導入したＬＮＧは人
品管２，２′或いは気化器１からの自然人熱により少量
づつ蒸発して、ＬＮＧがＣＨ４ｔ Ｃ２ｔＣ３など多成
分の場合には、低沸点成分が先に選択的に蒸発し、高沸
点成分が残留する。The disadvantage of the above conventional method is that the LNG introduced for cooling evaporates little by little due to natural human heat from the air pipes 2, 2' or the vaporizer 1, and when the LNG contains multiple components such as CH4t, C2tC3, etc. The boiling point components are selectively evaporated first and the high boiling point components remain.
このため待機から再起動に入ると、この残留成分が先ず
気化して起動後の一定時間は高熱量のガスが発生し、供
給ガスの熱量変動をもたらす。Therefore, when restarting from standby, this residual component first vaporizes, and gas with a high calorific value is generated for a certain period of time after startup, resulting in fluctuations in the calorific value of the supplied gas.
勿論、この起動時の熱量変動は熱量調整装置により調整
しているが、熱義凋整の外乱となっている。Of course, this fluctuation in the amount of heat at startup is adjusted by the amount of heat adjustment device, but it is a disturbance to the thermal regulation.
本考案は斯かる点に鑑みて提案されるもので、人品管２
，２′及び気化器１内での低温の液化天然ガスの濃縮化
を防ぎ、起動時における熱量変動０防止を図るもので、
その実施例を詳記すると以下のとおりである。This invention is proposed in view of these points, and is
, 2' and the vaporizer 1 from condensation, and prevents zero fluctuation in heat amount at startup.
The details of the examples are as follows.
第２図において、１はオープンラップ式ペーパーライザ
（気化器）、２はこのペーパーライザ１に至ろ人品管、
３は人間管２内に取り付けた負荷制御弁、４は負荷制御
弁３をバイパスするバイパス路、５はバイパス路４内に
摩り付けた冷却用液化天然ガスの流量制御弁、６はペー
パーライザ１側の入間管２内に増り付けた配管の温度検
知器、７は温度検知器６で検出した温度により流量制御
弁５の開度な自動調整して、常時冷却に必要な液化天然
ガスを導入するための匍脚器、８は人品管２′の末端に
確り付けた液化天然ガス循環ラインにして、この循環ラ
イン８内には循環流量制御弁９が取り付けてあり、この
循環流量制御弁９は人品管２′内の液面又は液検知器１
０にて検出した液面又は液検出によりその開度が自動調
整されて循環ライン８内を循環する液化天然ガスの量を
調整し、同時にペーパーライザ１か循環ライン８内への
気化ガスの逆流を防止している。In Fig. 2, 1 is an open-wrap paper riser (vaporizer), 2 is a personnel pipe leading to this paper riser 1,
3 is a load control valve installed in the human pipe 2; 4 is a bypass path that bypasses the load control valve 3; 5 is a cooling liquefied natural gas flow rate control valve fitted in the bypass path 4; 6 is a paper riser 1 A piping temperature sensor 7 added to the side Iruma pipe 2 automatically adjusts the opening of the flow rate control valve 5 according to the temperature detected by the temperature sensor 6 to constantly supply liquefied natural gas necessary for cooling. A liquefied natural gas circulation line 8 is fixed to the end of the gas pipe 2', and a circulation flow control valve 9 is installed in the circulation line 8 to control the circulation flow rate. The valve 9 detects the liquid level in the personnel pipe 2' or the liquid detector 1.
The opening degree is automatically adjusted based on the liquid level detected at 0 or liquid detection to adjust the amount of liquefied natural gas circulating in the circulation line 8, and at the same time, the vaporized gas flows back into the paper riser 1 or the circulation line 8. is prevented.
図中１１は発生ガス送出ラインである。In the figure, 11 is a generated gas delivery line.
本考案は以上のように、人品管２′ノ末端に循環ライン
８を取り付けたので、Ｍ２管２からバイパス路４及び循
環流量制御弁５を介して人品管２′及びペーパーライザ
１に至った液化天然ガスは、例えその一部が自然人熱に
より気化蒸発しても、残留成分は循環ライン８を介して
回収され、次々に新らしい液化天然ガスが導入されるの
で、入間管２．２′及びペーパーライザ１内において冷
却用の液化天然ガスの濃縮化が進行することはない。As described above, in the present invention, the circulation line 8 is attached to the end of the material pipe 2', so that it is connected to the material pipe 2' and the paper riser 1 from the M2 pipe 2 via the bypass path 4 and the circulation flow rate control valve 5. Even if a part of the liquefied natural gas is vaporized by natural human heat, the remaining components are recovered through the circulation line 8, and new liquefied natural gas is introduced one after another, so that the liquefied natural gas is transferred to the Iruma pipe 2. 2' and within the paper riser 1, the condensation of the liquefied natural gas for cooling does not proceed.
したがって、待機中から再起動に入っても、この起動時
に発生ガスの熱量変動が発生する心配はなく、液化天然
ガスの気化装置に実施すると熱量管理がしやすい効果が
ある。Therefore, even if restart is started from standby, there is no concern that the heat value of the generated gas will fluctuate during the restart, and when implemented in a liquefied natural gas vaporizer, the heat value can be easily managed.
第１図は従来の気化器冷却装置の実施例図、第２図は本
考案に係る冷却装置の実施例図である。
１・・・・・気化器（オープンラップ式ペーパーライザ
）、２，２′・・・・・・入間管、３・・・・・・流量
制御弁、４・・・・・・バイパス路、５・・・・・循環
流量制御弁、６・・・・・・温度検知器、７・・・・・
・毒１脚器、８・・−・・液化天然ガス循環ライン、９
・・・・・・循環流量制御弁、１０・・・・、・・液面
又は液検出器、１１・・・・・・発生ガス送出ライン。FIG. 1 is an embodiment of a conventional vaporizer cooling device, and FIG. 2 is an embodiment of a cooling device according to the present invention. 1... Vaporizer (open wrap paper riser), 2, 2'... Iruma pipe, 3... Flow rate control valve, 4... Bypass path, 5... Circulation flow control valve, 6... Temperature detector, 7...
・Poison monopod, 8...Liquefied natural gas circulation line, 9
... Circulation flow control valve, 10 ..., liquid level or liquid detector, 11 ... generated gas delivery line.
Claims (1)
を接続して待機中に導入した冷却用液化天然ガスが濃縮
しないように構成して成る液化天然ガスの気化器におけ
る濃縮防止装置。A condensation prevention device for a liquefied natural gas vaporizer, which is configured to connect a liquefied natural gas circulation line to the end of a personnel pipe to the vaporizer to prevent liquefied natural gas for cooling introduced during standby from condensing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP571680U JPS5829359Y2 (en) | 1980-01-21 | 1980-01-21 | Concentration prevention device in liquefied natural gas vaporizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP571680U JPS5829359Y2 (en) | 1980-01-21 | 1980-01-21 | Concentration prevention device in liquefied natural gas vaporizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56108098U JPS56108098U (en) | 1981-08-21 |
| JPS5829359Y2 true JPS5829359Y2 (en) | 1983-06-27 |
Family
ID=29602381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP571680U Expired JPS5829359Y2 (en) | 1980-01-21 | 1980-01-21 | Concentration prevention device in liquefied natural gas vaporizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5829359Y2 (en) |
-
1980
- 1980-01-21 JP JP571680U patent/JPS5829359Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56108098U (en) | 1981-08-21 |
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