JPS60168995A - Preheater for liquefied gas - Google Patents

Preheater for liquefied gas

Info

Publication number
JPS60168995A
JPS60168995A JP59157526A JP15752684A JPS60168995A JP S60168995 A JPS60168995 A JP S60168995A JP 59157526 A JP59157526 A JP 59157526A JP 15752684 A JP15752684 A JP 15752684A JP S60168995 A JPS60168995 A JP S60168995A
Authority
JP
Japan
Prior art keywords
liquefied gas
temperature
preheater
lpg
low temperature
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
Application number
JP59157526A
Other languages
Japanese (ja)
Other versions
JPH0417313B2 (en
Inventor
Junichi Hosokawa
純一 細川
Yoshio Okabayashi
岡林　芳夫
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP59157526A priority Critical patent/JPS60168995A/en
Publication of JPS60168995A publication Critical patent/JPS60168995A/en
Publication of JPH0417313B2 publication Critical patent/JPH0417313B2/ja
Granted 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
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F17C7/02—Discharging liquefied gases
    • F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

PURPOSE:To obtain the preheating effect of the liquefied gas at low temperature without using a preheater by allowing a portion of the liquefied gas heated close to the boiling point to circulate and mixing said gas with the liquefied gas supplied at a low temperature. CONSTITUTION:The LPG stored in a tank 1 at low temperature is supplied by a pump 2 and heated close to the boiling point in an evaporator 6, and the temperature is raised. Said gas is sent into the evaporator 6, mixed and preheated with the LPG extracted by a circulation pump 3. Therefore, preheating effect can be obtained without installing a heat exchanger, and cost can be markedly reduced.

Description

【発明の詳細な説明】 〔発明の利用分野〕 １才 本発明Ｑ液化ガス気化設備において、低温の液化ガスを
予熱する装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a device for preheating low-temperature liquefied gas in liquefied gas vaporization equipment.

〔発明の背景〕[Background of the invention]

従来の液化ガス気化設備では、低温の液化ガスが、直接
多管式熱交（予熱器、気化器）に流入するｆコめ、伝熱
管内での加熱流体（スチーム、温水）の凍結、閉塞によ
り運転継続が困鐙となる欠点がδ５っｒこ。In conventional liquefied gas vaporization equipment, low-temperature liquefied gas flows directly into a multi-tubular heat exchanger (preheater, vaporizer), and the heating fluid (steam, hot water) in the heat exchanger tubes freezes and becomes clogged. The drawback is that it is difficult to continue operation due to the δ5r.

関連した公知技術としては特開昭５ｆｉ　−５７８９３
号公報がある。Related known technology is JP-A-5-57893.
There is a publication.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、液化ガス気化設備において、簡単かつ
信頼性の高い低温液化ガスの予熱装置を提供することに
ある。An object of the present invention is to provide a simple and reliable low-temperature liquefied gas preheating device for liquefied gas vaporization equipment.

〔発明の概要〕[Summary of the invention]

本発明は、気化器において、沸点付近まで加熱昇温され
た液化ガスの一部を循環させ、低温で供給される液化ガ
スと混合することにより、予熱効果を得るものである。The present invention obtains a preheating effect by circulating a part of the liquefied gas heated to near the boiling point in the vaporizer and mixing it with the liquefied gas supplied at a low temperature.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明の一実施例を液化石油ガス（以下ＬＰＧと
略す）気化設備の系統図により説明する。An embodiment of the present invention will be described below with reference to a system diagram of liquefied petroleum gas (hereinafter abbreviated as LPG) vaporization equipment.

低温（プロパンが主成りの場合約−４５”Ｃ）でタンク
１内に貯蔵されているＬＰＧは２のポンプにより供給さ
れ、６の気化器内で沸点付近まで加熱昇温し３の循環ポ
ンプにより抜き出されたＬＰＧと混合、予熱された状態
で６の気化器に送られる。LPG stored in tank 1 at a low temperature (approximately -45"C if propane is the main component) is supplied by pump 2, heated to near boiling point in vaporizer 6, and then pumped by circulation pump 3. It is mixed with extracted LPG and sent to vaporizer 6 in a preheated state.

さらに沸騰、蒸発により気化したＬＰＧは７の過熱器に
より過熱状態で送給される。Further, the LPG vaporized by boiling and evaporation is sent in a superheated state by the superheater 7.

本発明はこの気化過程における予熱装置Ｈに関するもの
であり、以下構成および動作を説明する。The present invention relates to a preheating device H used in this vaporization process, and its configuration and operation will be explained below.

気化器〜循環ボンプル液供給ラインを設けたことにより
、気化器内の沸点付近のＬＰＧを循環させ、低温過冷却
で供給されるＬＰＧと混合させる。By providing a circulation bottle liquid supply line from the vaporizer, LPG near the boiling point in the vaporizer is circulated and mixed with LPG supplied under low-temperature supercooling.

この循環量と供給量の比を１：１とすると気化器に流入
する液は両者の中間温度まで昇温する。図示の例では４
の温度調節弁により、設定温度になるよう循環量を制御
する。また、９の仕切板は循環ポンプに気泡を吸込まな
いように設置しγ二ものである。If the ratio of the circulation amount to the supply amount is 1:1, the temperature of the liquid flowing into the vaporizer will rise to an intermediate temperature between the two. In the example shown, 4
The temperature control valve controls the amount of circulation to reach the set temperature. Further, the partition plate 9 is installed to prevent air bubbles from being sucked into the circulation pump.

本実施例によれば、予熱器を設け１こ場合のように飽和
温度までの予熱はできないが、特に熱交換器を設置せず
に予熱効果が得られ、大幅な価格低減が可能である。さ
らに予熱器（あるいは気化器）への低温過冷却ＬＰＧの
直接流入がないので加熱気体（温水、スチーム）の伝熱
管内での凍結、閉塞のおそれが減少し気化設備としての
信頼性も向１ユさせることができろ。According to this embodiment, although it is not possible to preheat to the saturation temperature as in this case by providing a preheater, a preheating effect can be obtained without particularly installing a heat exchanger, and the cost can be significantly reduced. Furthermore, since there is no direct flow of low-temperature supercooled LPG into the preheater (or vaporizer), the risk of freezing or clogging of the heated gas (hot water, steam) in the heat transfer tubes is reduced, which improves the reliability of the vaporization equipment. You can make me do it.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、予熱器を使用せず低温液化ガスの予熱
効果が得られる。According to the present invention, the effect of preheating low temperature liquefied gas can be obtained without using a preheater.

したがって、熱交流入前に予熱昇温されるので、熱交伝
熱管内での加熱流体凍結のｎｌ能性が低減できる。また
予熱器が不要なことから液化ガス気化設備としての簡略
化により価格低減が可能となる。Therefore, since the temperature is preheated before heat exchange is introduced, the possibility of freezing of the heated fluid within the heat exchanger tube can be reduced. In addition, since a preheater is not required, the cost can be reduced by simplifying the liquefied gas vaporization equipment.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本発明の一実施例によるＬＰＧ気化設備の系統図で
ある。 １・・ＬＰＧ貯蔵タンク　２・・・送液ポンプ３・・・
循環ポンプ　４・・・温度調節弁５・・・液面調節弁　
６・・・気化器 ７・・・過熱器　８・・流量調節弁 ９・・・仕切板The figure is a system diagram of an LPG vaporization facility according to an embodiment of the present invention. 1...LPG storage tank 2...Liquid pump 3...
Circulation pump 4...Temperature control valve 5...Liquid level control valve
6... Carburizer 7... Superheater 8... Flow rate control valve 9... Partition plate

Claims (1)

【特許請求の範囲】[Claims] １、低温液化ガス気化設備において、気化器内で沸点付
近まで加熱、昇温させた液化ガスの一部をポンプにより
抜き出し、低温の過冷却状態で供給される液化ガスと混
合することを特徴とする、液化ガスの予熱装置。1. In low-temperature liquefied gas vaporization equipment, a part of the liquefied gas that has been heated to near the boiling point in the vaporizer is extracted by a pump and mixed with the liquefied gas that is supplied in a low-temperature supercooled state. A liquefied gas preheating device.
JP59157526A 1984-07-30 1984-07-30 Preheater for liquefied gas Granted JPS60168995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59157526A JPS60168995A (en) 1984-07-30 1984-07-30 Preheater for liquefied gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59157526A JPS60168995A (en) 1984-07-30 1984-07-30 Preheater for liquefied gas

Publications (2)

Publication Number Publication Date
JPS60168995A true JPS60168995A (en) 1985-09-02
JPH0417313B2 JPH0417313B2 (en) 1992-03-25

Family

ID=15651592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59157526A Granted JPS60168995A (en) 1984-07-30 1984-07-30 Preheater for liquefied gas

Country Status (1)

Country Link
JP (1) JPS60168995A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5819542A (en) * 1995-03-16 1998-10-13 Kvaerner Maritime As Heat exchanger device
CN113154250A (en) * 2021-04-27 2021-07-23 陇东学院 LNG vaporizing device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5777798U (en) * 1980-10-29 1982-05-13

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5777798U (en) * 1980-10-29 1982-05-13

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5819542A (en) * 1995-03-16 1998-10-13 Kvaerner Maritime As Heat exchanger device
CN113154250A (en) * 2021-04-27 2021-07-23 陇东学院 LNG vaporizing device

Also Published As

Publication number Publication date
JPH0417313B2 (en) 1992-03-25

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