JPS58207596A - Internal pressure preserving method of liquefied gas tank when receiving liquefied gas - Google Patents

Internal pressure preserving method of liquefied gas tank when receiving liquefied gas

Info

Publication number
JPS58207596A
JPS58207596A JP8838882A JP8838882A JPS58207596A JP S58207596 A JPS58207596 A JP S58207596A JP 8838882 A JP8838882 A JP 8838882A JP 8838882 A JP8838882 A JP 8838882A JP S58207596 A JPS58207596 A JP S58207596A
Authority
JP
Japan
Prior art keywords
liquefied gas
gas tank
tank
liquefied
receiving
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
Application number
JP8838882A
Other languages
Japanese (ja)
Inventor
Tsutomu Miyashita
勉 宮下
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IHI Corp filed Critical IHI Corp
Priority to JP8838882A priority Critical patent/JPS58207596A/en
Publication of JPS58207596A publication Critical patent/JPS58207596A/en
Pending legal-status Critical Current

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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure

Abstract

PURPOSE:To hold the space in a liquefied gas tank at a predetermined pressure by spraying liquefied gas into a liquefied gas tank through a spray nozzle so as to condense the gas in the liquefied gas tank. CONSTITUTION:When liquefied gas is received into a liquefied gas tank 2, the liquefied gas is fed by a pump to the liquefied gas tank 2 side from a liquefied gas storage tank through a pipeline 3 and is sprayed into the liquefied gas tank 2 through a spray nozzle 4. Part of the gas gathered in the liquefied gas tank 2 is condensed, re-liquefied, and returned to the liquid surface, thereby the space in the liquefied gas tank 2 is held approximately at a predetermined pressure. Accordingly, no special line is required to be provided for the gas return.

Description

【発明の詳細な説明】 本発明は、液化ガス受入れ時の液化ガスタンク内圧力保
持方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for maintaining pressure inside a liquefied gas tank when receiving liquefied gas.

従来、液化ガスをタンカーの液化ガスタンクに出荷する
際や陸上の液化ガスタンクに荷揚げする際には、液化ガ
スを受入れる液化カスタンク内の圧力を所定の圧力に保
持するために、液化ガスタンク内に供給された液化ガス
の体積分のガスを戻りガスラインを用いて前記液化ガス
タンクから排出しくいた。Conventionally, when shipping liquefied gas to a liquefied gas tank on a tanker or unloading it to a liquefied gas tank on land, gas is supplied into the liquefied gas tank in order to maintain the pressure in the liquefied gas tank that receives the liquefied gas at a predetermined pressure. A volume of the liquefied gas that had been removed was discharged from the liquefied gas tank using a return gas line.

しかし、戻りガスラインを設置すると、余分な配管やｔ
ｉｔ装機器が必要となるため、設備費、運転維持費が８
価となる、等の問題があった。However, installing a return gas line requires extra piping and t.
Because IT equipment is required, equipment costs and operation and maintenance costs are 8.
There were problems such as the value of the product.

本発明は斯かる観白に鑑み、液化ガスを液化ガスタンク
に受入れる際に、戻りガスラインを段【ノずとも、液化
ガスタンク内の圧力を所定の圧力に保持し得るようにし
、余泪な配管や計装機器を省略し得るようにした液化ガ
ス受入れ時の液化カスタンク内圧力保持方法を提供する
ことを目的としてなしたもので・ある。In view of such considerations, the present invention has been developed to provide a return gas line that can maintain the pressure inside the liquefied gas tank at a predetermined pressure when receiving liquefied gas into the liquefied gas tank, and eliminates the need for unnecessary piping. The purpose of this invention is to provide a method for maintaining pressure inside a liquefied gas tank when receiving liquefied gas, which makes it possible to omit equipment and instrumentation.

以下、本発明の実施例を図面を参照しつつ説明する。Embodiments of the present invention will be described below with reference to the drawings.

図中１はタンカー、２はタンカー１に設（）られた液化
ガスタンク、３は液化ガスを液化ガスタンク２に受入れ
る管路、４は管路３の先端に取付けられ、液化ガスを液
化ガスタンク２内に噴出さぜるスプレィノズルである。In the figure, 1 is a tanker, 2 is a liquefied gas tank installed in the tanker 1, 3 is a pipe that receives liquefied gas into the liquefied gas tank 2, and 4 is a pipe that is attached to the tip of the pipe 3, and a pipe that carries the liquefied gas into the liquefied gas tank 2. It is a spray nozzle that ejects water.

液化ガスを液化ガスタンク２に受入れる場合は、図示し
てない液化ガス貯蔵タンクから、ポンノ′にｊ、−）（
液化カスが管路３を通′り液化ガスタフタ２側へ送られ
、スプレィノズル４から液化カスタンク２内に噴出され
る。この噴出によ）Ｃ１すでに液化ガスタンク２にたま
っているカスの一部は、凝縮されて再液化し、波向に戻
るため、液化ガスタンク２．の空間部は略所定のＬＬ力
を保持される。従ってガス戻りのための特別のラインを
設ける必要はない。When receiving liquefied gas into the liquefied gas tank 2, from the liquefied gas storage tank (not shown) to the ponno', j, -) (
The liquefied scum is sent to the liquefied gas taffeta 2 side through the pipe line 3, and is sprayed into the liquefied scum tank 2 from the spray nozzle 4. Due to this ejection, some of the debris that has already accumulated in the liquefied gas tank 2 is condensed and re-liquefied, and returns to the wave direction. A substantially predetermined LL force is maintained in the space. Therefore, there is no need to provide a special line for gas return.

なお、本発明の実施例では、液化ガスをタンカーの液化
ガスタンクに受入れる場合について説明し、だが、陸上
の液化ガスタンクに受入れる場合に使用することも可能
であること、液化ガスとしては、ＬＰＧ、ＬＮＧ等種々
のものに適用し得ること、その他、本発明の要旨を逸脱
しない範囲内で種々変更を加え得ること等は勿論（・あ
る。In the embodiments of the present invention, the case where liquefied gas is received into the liquefied gas tank of a tanker is explained, but it is also possible to use it when receiving it into the liquefied gas tank on land. It goes without saying that the present invention can be applied to various things, and that various changes can be made without departing from the gist of the present invention.

本発明の液化ガス受入れ時の液化ガスタンク内圧力保持
方法によれば、戻りガス専用の配管ヤ）６１装機器が不
要となるため、設備費、運転維持費が安価となるという
優れた効果を奏し得る。According to the method of maintaining the pressure inside a liquefied gas tank when receiving liquefied gas according to the present invention, there is no need for piping or equipment dedicated to return gas, which has the excellent effect of reducing equipment costs and operation and maintenance costs. obtain.

【図面の簡単な説明】 図は本発明の説明図である。 図中１はタンカー、２は液化ガスタンク、３は管路、４
はスプレィノズルを示す、。 特　　許　　出　　願　　人 石川島播磨重−［業株式会社 −〇BRIEF DESCRIPTION OF THE DRAWINGS The figure is an explanatory diagram of the present invention. In the diagram, 1 is a tanker, 2 is a liquefied gas tank, 3 is a pipeline, and 4
indicates a spray nozzle. Patent application Hitoshi Kawajima Harima Heavy Industries Ltd.

Claims (1)

【特許請求の範囲】[Claims] ｌ）　液化ガスをスプレィノズルから液化ガスタンク内
に噴出させることにより、液化ガスタンク内のガスを凝
縮させて再液化し、液化ガスタンク内空間部を所定の圧
力に保持することを特徴とする液化ガス受入れ時の液化
ガスタンク内圧力保持方法。l) Liquefied gas reception characterized by condensing and re-liquefying the gas in the liquefied gas tank by jetting the liquefied gas into the liquefied gas tank from a spray nozzle, and maintaining the internal space of the liquefied gas tank at a predetermined pressure. How to maintain pressure inside a liquefied gas tank.
JP8838882A 1982-05-25 1982-05-25 Internal pressure preserving method of liquefied gas tank when receiving liquefied gas Pending JPS58207596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8838882A JPS58207596A (en) 1982-05-25 1982-05-25 Internal pressure preserving method of liquefied gas tank when receiving liquefied gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8838882A JPS58207596A (en) 1982-05-25 1982-05-25 Internal pressure preserving method of liquefied gas tank when receiving liquefied gas

Publications (1)

Publication Number Publication Date
JPS58207596A true JPS58207596A (en) 1983-12-03

Family

ID=13941404

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8838882A Pending JPS58207596A (en) 1982-05-25 1982-05-25 Internal pressure preserving method of liquefied gas tank when receiving liquefied gas

Country Status (1)

Country Link
JP (1) JPS58207596A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012114851A1 (en) * 2011-02-25 2012-08-30 三菱重工業株式会社 Liquefied natural gas storage / transport ship and method of suppressing excess gas generation for said liquefied natural gas storage / transport ship
WO2017037809A1 (en) * 2015-08-28 2017-03-09 日本郵船株式会社 Lng fuel-receiving system for use in ship, ship equipped with same, and lng fuel-receiving method for use in ship

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012114851A1 (en) * 2011-02-25 2012-08-30 三菱重工業株式会社 Liquefied natural gas storage / transport ship and method of suppressing excess gas generation for said liquefied natural gas storage / transport ship
JP2012177419A (en) * 2011-02-25 2012-09-13 Mitsubishi Heavy Ind Ltd Liquefied natural gas storage/transport ship and method of suppressing excess gas generation for the liquefied natural gas storage/transport ship
WO2017037809A1 (en) * 2015-08-28 2017-03-09 日本郵船株式会社 Lng fuel-receiving system for use in ship, ship equipped with same, and lng fuel-receiving method for use in ship
JPWO2017037809A1 (en) * 2015-08-28 2018-02-15 日本郵船株式会社 LNG fuel receiving system for ship, ship equipped with the same, and LNG fuel receiving method for ship

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