JPS6138300A - Liquefied gas vaporizer - Google Patents
Liquefied gas vaporizerInfo
- Publication number
- JPS6138300A JPS6138300A JP16061584A JP16061584A JPS6138300A JP S6138300 A JPS6138300 A JP S6138300A JP 16061584 A JP16061584 A JP 16061584A JP 16061584 A JP16061584 A JP 16061584A JP S6138300 A JPS6138300 A JP S6138300A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- seawater
- flow rate
- liquefied gas
- supplied
- 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
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
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
- F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure 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
- 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
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0302—Heat exchange with the fluid by heating
- F17C2227/0309—Heat exchange with the fluid by heating using another fluid
- F17C2227/0316—Water heating
- F17C2227/0318—Water heating using seawater
-
- 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
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0367—Localisation of heat exchange
- F17C2227/0388—Localisation of heat exchange separate
- F17C2227/0393—Localisation of heat exchange separate using a vaporiser
-
- 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
- F17C2250/0439—Temperature
-
- 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
- F17C2250/0636—Flow or movement of content
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、液化天然ガスに海水の熱エネルギーを与えて
気化させる液化ガス気化装置に関し、特に海水流量を制
御する手段の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquefied gas vaporizer that vaporizes liquefied natural gas by applying thermal energy from seawater, and particularly relates to an improvement in means for controlling the flow rate of seawater.
一般に、液化ガス気化装置においては、気化ガスを燃料
として利用する負荷の要求量に応じて液化ガスを気化さ
せて、負荷側に供給するものとなっている。Generally, in a liquefied gas vaporizer, liquefied gas is vaporized according to the amount required by a load that uses the vaporized gas as fuel, and is supplied to the load side.
第３図は従来の液化ガス気化装置の構成を示す系統図で
ある。第３図において１は気化装置本体であり、液化ガ
ス供給ライン２を経て供給された液化天然ガスを、海水
供給ライン３から供給される海水の熱エネルギーにより
気化させて、気化ガスを気化ガス供給うイン４を通して
負荷（不図示）へ送出させるものとなっている。なお、
上記気化装置本体１は、液化カス気化装置を保有する基
地において、通常は複数台が稼働されている。そして負
荷要求量に応じた気化ガスを常時安定して負荷側へ送出
できるように、次の如く液化ガス供給量を制御するもの
となっている。FIG. 3 is a system diagram showing the configuration of a conventional liquefied gas vaporizer. In Fig. 3, 1 is the main body of the vaporizer, which vaporizes the liquefied natural gas supplied through the liquefied gas supply line 2 using the thermal energy of seawater supplied from the seawater supply line 3, and supplies the vaporized gas to the vaporized gas. The signal is sent to a load (not shown) through the input 4. In addition,
A plurality of the vaporizer bodies 1 are usually operated at a base that has liquefied gas vaporizers. The amount of liquefied gas supplied is controlled in the following manner so that vaporized gas corresponding to the required amount of load can always be stably delivered to the load side.
すなわち、前記気化ガス供給うイン４には気化ガスの圧
力を検出する圧力検出器５が設けられており、この圧力
検出器５により検出された圧力検出値は、圧力調節計６
にて予め設定された圧力設定値と比較され、その偏差を
示す供給液化ガス制御信号Ｓ１が上記圧力調節計６から
出力されるものとなっている。上記供給ガス制御信号ｓ
１は負荷配分器７へ送られ、気化装置本体１の数に応じ
て分配されたのち、各気化装置本体１の液化ガス流量調
節計８に設定値として供給されるものとなっている。上
記液化ガス流量調節計８には前記液化ガス供給うイン２
に設けられた液化ガス流量検出器９により検出された液
化ガス流量を示す信号Ｓ２が供給され、この信号ｓ２と
前記設定値とが等しくなるように、前記液化ガス供給ラ
イン２に設けられた液化ガス流量調節弁１ｏの開度が制
御されるものとなっている。がくして気化ガス送出ライ
ン４を通流する気化ガスの圧力は、負荷要求量が変動し
ても常に一定となるように制御されており、安定した気
化ガスの送出が行なわれるものとなっている。That is, the vaporized gas supply inlet 4 is provided with a pressure detector 5 for detecting the pressure of vaporized gas, and the pressure detected by the pressure detector 5 is sent to a pressure regulator 6.
The supply liquefied gas control signal S1 is compared with a preset pressure setting value, and the supply liquefied gas control signal S1 indicating the deviation is outputted from the pressure regulator 6. The above supply gas control signal s
1 is sent to the load distributor 7, distributed according to the number of vaporizer main bodies 1, and then supplied to the liquefied gas flow rate controller 8 of each vaporizer main body 1 as a set value. The liquefied gas flow rate controller 8 includes the liquefied gas supply inlet 2.
A signal S2 indicating the liquefied gas flow rate detected by the liquefied gas flow rate detector 9 installed in the liquefied gas supply line 2 is supplied, and the liquefied gas flow rate detector 9 installed in the liquefied gas supply line 2 The opening degree of the gas flow rate control valve 1o is controlled. The pressure of the vaporized gas flowing through the vaporized gas delivery line 4 is controlled so as to remain constant even if the load requirement changes, so that stable vaporized gas delivery is achieved. .
一方、前記海水供給ライン３には海水の流量を検出する
海水流量検出器１１が設けられており、この流量検出器
１１にて検出された海水流量を示す信号Ｓ３は海水流量
調節計１２に送られ、この海水流量調節計１２において
予め設定されている海水流量設定値となるように、上記
海水供給ライン３に設けられた海水流量調節弁１３の開
度が制御されるものとなっている。なお、上記海水流量
設定値は前記気化装置本体１の凍結を防止するために、
過剰気味の一定値となっている。On the other hand, the seawater supply line 3 is provided with a seawater flow rate detector 11 that detects the flow rate of seawater, and a signal S3 indicating the seawater flow rate detected by this flow rate detector 11 is sent to a seawater flow rate controller 12. The opening degree of the seawater flow rate control valve 13 provided in the seawater supply line 3 is controlled so that the seawater flow rate setting value is set in advance in the seawater flow rate controller 12. In addition, the above seawater flow rate set value is set to prevent freezing of the vaporizer main body 1.
This is a constant value that seems excessive.
ところで、通常、液化ガス気化装置を保有する基地にお
いては、負荷としてボイラその他からなる発電設備が複
数台にわたって接続されており、大幅な負荷変動を生じ
るおそれがある。そこで、従来の液化ガス気化装置にお
いては、大幅な負荷衝動に対応できるように、気化装置
本体１の運転台数を変更すると共に、前述したように運
転中の気化装置本体１に供給される液化ガスの流量を負
荷要求量に応じて連続的に制御できるようになっている
。By the way, in bases that have liquefied gas vaporization equipment, a plurality of power generation equipment such as boilers and the like are usually connected as loads, and there is a risk that significant load fluctuations will occur. Therefore, in the conventional liquefied gas vaporizer, in order to cope with a large load impulse, the number of operating vaporizer main bodies 1 is changed, and as described above, the liquefied gas is supplied to the vaporizer main body 1 during operation. The flow rate can be continuously controlled according to the load demand.
しかるに、上記運転中の気化装置本体１に供給される海
水流量は負荷変動に関係なく常に一定であり、しかも気
化に必要な海水流量よりも過剰気味の海水流量が与えら
れるものとなっている。すなわち、海水を汲み上げる海
水ポンプは余分な稼働を行なっているのが普通であり、
大変不経済であった。However, the flow rate of seawater supplied to the vaporizer main body 1 during operation is always constant regardless of load fluctuations, and moreover, the flow rate of seawater is slightly excessive than the flow rate of seawater required for vaporization. In other words, seawater pumps that pump up seawater usually run redundantly.
It was extremely uneconomical.
そこで本発明は、海水ポンプの余分な稼働を防止でき、
経済的で省エネルギー化をはかり得る液化ガス気化装置
を提供することを目的とする。Therefore, the present invention can prevent redundant operation of the seawater pump,
The purpose of the present invention is to provide a liquefied gas vaporization device that is economical and can save energy.
本発明は上記問題点を解決し目的を達成するために次の
ような手段を講じたことを特徴としている。すなわち、
液化天然ガスに海水の熱エネルギーを与えて気化させる
気化装置本体から送出される気化ガスの圧力を圧力検出
器により検出し、この圧力検出器により検出された圧力
検出値と予め設定された圧力設定値とを圧力調節計にて
比較し、その偏差を示す出力信号に応じて前記圧力検出
値が常に圧力設定値となるように前記本体に供給される
液化ガス流量を制御すると共に、前記圧力調節計の出力
信号に遅れ要素を加えた信号を関数演算器に与え、この
関数演算器から出力される単調増加する信号に応じて、
前記本体に供給される海水流量を制御するようにしたこ
とを特徴としている。The present invention is characterized by taking the following measures in order to solve the above problems and achieve the objects. That is,
A pressure detector detects the pressure of the vaporized gas sent from the vaporizer main body, which applies thermal energy of seawater to liquefied natural gas to vaporize it, and the pressure detected by this pressure sensor and the preset pressure setting are The flow rate of the liquefied gas supplied to the main body is controlled so that the detected pressure value always becomes the pressure set value, and the pressure is adjusted according to an output signal indicating the deviation. A signal obtained by adding a delay element to the output signal of the meter is given to a functional calculator, and according to the monotonically increasing signal output from this functional calculator,
It is characterized in that the flow rate of seawater supplied to the main body is controlled.
また本発明は、前記関数演算器の出力信号と前記本体に
供給される海水温度を検出する海水温度検出器の出力信
号とにより前記本体に供給される液化ガスを気化するた
めに必要な加熱量を乗算器にて演算し、この乗算器の出
力信号に応じて前記本体に供給される海水流量を制御す
るようにしたことを特徴としている。Further, the present invention provides an amount of heating necessary to vaporize the liquefied gas supplied to the main body based on an output signal of the functional calculator and an output signal of a seawater temperature detector that detects the temperature of seawater supplied to the main body. is calculated by a multiplier, and the flow rate of seawater supplied to the main body is controlled according to the output signal of the multiplier.
上記の如く構成したことにより、気化装置本体に供給さ
れる液化ガス流量に応じて海水流量を制御できるので、
海水を汲み上げる海水ポンプの余分な稼働を抑制するこ
とができる。With the above configuration, the seawater flow rate can be controlled according to the liquefied gas flow rate supplied to the vaporizer main body.
It is possible to suppress unnecessary operation of the seawater pump that pumps up seawater.
第１図は本発明の第１の実施例の構成を示す系統図であ
る。なお第３図と同一部分には同一符号を付し、詳しい
説明は省略する。圧力調節計６から出力され負荷配分器
７にて各気化装置本体１毎に分配された供給液化ガス制
御信号８１′は、液化ガス流量検出器８に供給されると
共に、遅れ要素２１を加えたのち関数演算器２２に供給
されるものとなっている。上記関数演算器２２は入力信
号に対し出力信号が単調増加するように設定されている
。そして、上記関数演算器２２の出力信号Ｓ４は海水流
量調節計１２に設定値として送られるものとなっている
。なお前記遅れ要素２１を供給液化ガス制御信号＄１′
に加える理由は、上記出力信号Ｓ４が振動し海水ポンプ
に悪影響を与えるのを阻止するためである。前記海水流
量調節計１２には海水流量検出器１１から海水流量を示
す信号Ｓ３が供給されており、この信号Ｓ３と前・配設
定値とが等しくなるように、海水流量調節弁１”３の開
度を制御するものとなっている。FIG. 1 is a system diagram showing the configuration of a first embodiment of the present invention. Note that the same parts as in FIG. 3 are given the same reference numerals, and detailed explanations will be omitted. A supply liquefied gas control signal 81' outputted from the pressure regulator 6 and distributed to each vaporizer main body 1 by the load distributor 7 is supplied to the liquefied gas flow rate detector 8, and a delay element 21 is added to the supply liquefied gas control signal 81'. It is later supplied to the function calculator 22. The function calculator 22 is set so that the output signal increases monotonically with respect to the input signal. The output signal S4 of the function calculator 22 is sent to the seawater flow rate controller 12 as a set value. Note that the delay element 21 is supplied with the liquefied gas control signal $1'
The reason for adding this is to prevent the output signal S4 from vibrating and adversely affecting the seawater pump. A signal S3 indicating the seawater flow rate is supplied from the seawater flow rate detector 11 to the seawater flow rate controller 12, and the seawater flow rate control valve 1''3 is adjusted so that this signal S3 and the preset value are equal. It controls the opening degree.
このように構成された本実施例においては、気化装置本
体１に供給される液化ガス流量に応じて海水流量が制御
されることになる。したがって、従来よりも海水流量の
少ない運転が可能となり、海水ポンプの余分な稼働を抑
制することができるので、経済的となり、省エネルギー
化がはかれる。In this embodiment configured in this way, the seawater flow rate is controlled according to the liquefied gas flow rate supplied to the vaporizer main body 1. Therefore, it is possible to operate with a smaller seawater flow rate than before, and unnecessary operation of the seawater pump can be suppressed, resulting in economical and energy saving.
次に本発明の第２の実施例を説明する。第２図は本発明
の第２の実施例の構成を示す系統図であり、第１図と同
一部分には同一符号を付しである。Next, a second embodiment of the present invention will be described. FIG. 2 is a system diagram showing the configuration of a second embodiment of the present invention, and the same parts as in FIG. 1 are given the same reference numerals.
本実施例においては、関数演算器２２の出力信号＄４が
乗算器２３の一方の入力として供給され、上記乗算器２
３の他方の入力としては、海水流量供給ライン３に設け
られた海水温度を検出する海水温度検出器２４の検出信
号Ｓ５が供給されるものとなっている。そして上記乗算
器２３において、気化装置本体１に供給される液化ガス
を気化するために必要な加熱量が演算されたのち、演算
結果を示す信号Ｓ６が設定値として海水流量調節計１２
に供給され、前記第１の実施例と同様にして海水流量が
制御されるものとなっている。In this embodiment, the output signal $4 of the functional operator 22 is supplied as one input of the multiplier 23, and the multiplier 2
3, a detection signal S5 from a seawater temperature detector 24 provided in the seawater flow rate supply line 3 for detecting seawater temperature is supplied. Then, in the multiplier 23, the amount of heating necessary to vaporize the liquefied gas supplied to the vaporizer main body 1 is calculated, and then a signal S6 indicating the calculation result is sent to the seawater flow rate controller 12 as a set value.
The flow rate of seawater is controlled in the same manner as in the first embodiment.
このように本実施例においては、気化装置本体１に供給
される液化ガス流量と海水の温度とに応じて海水流量が
制御されることになる。したがって、前記第１の実施例
よりも精度の高い海水流量制御が可能であり、より一層
の省エネルギー化をはかり得る。As described above, in this embodiment, the flow rate of seawater is controlled according to the flow rate of liquefied gas supplied to the vaporizer main body 1 and the temperature of seawater. Therefore, it is possible to control the seawater flow rate with higher accuracy than in the first embodiment, and further energy savings can be achieved.
（発明の効果〕
以上詳述したように本発明は、液化天然ガスに海水の熱
エネルギーを与えて気化させる気化装置本体から送出さ
れる気化ガスの圧力を圧力検出器により検出し、この圧
力検出器により検出された圧力検出値と予め設定された
圧力設定値とを圧力調節計にて比較し、その偏差を示す
出力信号に応じて前記圧力検出値が常に圧力設定値とな
るように前記本体に供給される液化ガス流量を制御する
と共に、前記圧力調節計の出力信号に理れ要素を加えた
信号を関数演算器に与え、この関数演算器から出力され
る単調増加する信号に応じて前記本体に供給される海水
流量を制御するようにしている。(Effects of the Invention) As detailed above, the present invention uses a pressure detector to detect the pressure of vaporized gas sent from the main body of the vaporizer that vaporizes liquefied natural gas by applying thermal energy of seawater. A pressure regulator compares the pressure detection value detected by the device with a preset pressure setting value, and adjusts the main body so that the pressure detection value always becomes the pressure setting value according to an output signal indicating the deviation. In addition to controlling the flow rate of the liquefied gas supplied to the pressure controller, a signal obtained by adding an error factor to the output signal of the pressure regulator is given to a function calculator, and the control unit controls the flow rate of the liquefied gas according to the monotonically increasing signal output from the function calculator. The flow rate of seawater supplied to the main body is controlled.
また本発明は、上記関数演算器の出力信号と、上記本体
に供給される海水温度を検出する海水温度検出器の出力
信号とにより上記本体にて液化ガスを気化するために必
要な加熱量を乗算器にて演算し、この乗算器の出力信号
に応じて前記本体に供給される海水流量を制御するよう
にしている。Further, the present invention calculates the amount of heating required to vaporize the liquefied gas in the main body based on the output signal of the functional calculator and the output signal of a seawater temperature detector that detects the temperature of seawater supplied to the main body. The calculation is performed by a multiplier, and the flow rate of seawater supplied to the main body is controlled according to the output signal of the multiplier.
したがって本発明によれば、海水ポンプの余分な稼働を
防止でき、経済的で省エネルギー化をはかり得る液化ガ
ス気化装置を提供できる。Therefore, according to the present invention, it is possible to provide an economical and energy-saving liquefied gas vaporization device that can prevent redundant operation of the seawater pump.
第１図は本発明の第１の実施例の構成を示す系統図、第
２図は本発明の第２の実施例の構成を示す系統図、第３
図は従来例の構成を示す系統図である。
１・・・気化装置本体、２・・・液化ガス供給ライン、
３・・・海水供給ライン、４・・・気化ガス供給ライン
、５・・・圧力検出器、６・・・圧力調節計、７・・・
負荷配分器、８・・・液化ガス流量調節計、９・・・液
化ガス流量検出器、１０・・・液化ガス流ｌ１１節弁、
１１・・・海水流量検出器、１２・・・海水流量調節計
、１３・・・海水流量調節弁、２１・・・遅れ要素、２
２・・・関数演算器、２３・・・乗算器、２４・・・海
水温度検出器。FIG. 1 is a system diagram showing the configuration of the first embodiment of the present invention, FIG. 2 is a system diagram showing the configuration of the second embodiment of the present invention, and FIG.
The figure is a system diagram showing the configuration of a conventional example. 1... Vaporizer main body, 2... Liquefied gas supply line,
3... Seawater supply line, 4... Vaporized gas supply line, 5... Pressure detector, 6... Pressure controller, 7...
Load distributor, 8... Liquefied gas flow rate controller, 9... Liquefied gas flow rate detector, 10... Liquefied gas flow l11 control valve,
DESCRIPTION OF SYMBOLS 11...Seawater flow rate detector, 12...Seawater flow rate controller, 13...Seawater flow rate control valve, 21...Delay element, 2
2... Function calculator, 23... Multiplier, 24... Seawater temperature detector.
Claims (2)
させる気化装置本体と、この本体から送出される気化ガ
スの圧力を検出する圧力検出器と、この圧力検出器によ
り検出された圧力検出値と予め設定された圧力設定値と
を比較しその偏差を出力する圧力調節計と、この圧力調
節計の出力信号に応じて前記圧力検出値が常に圧力設定
値となるように前記本体に供給される液化ガスの流量を
制御する液化ガス流量制御手段と、前記圧力調節計の出
力信号に遅れ要素を加えた信号を入力し単調増加する信
号を出力する関数演算器と、この関数演算器の出力信号
に応じて前記本体に供給される海水流量を制御する海水
流量制御手段とを具備したことを特徴とする液化ガス気
化装置。(1) A vaporizer body that vaporizes liquefied natural gas by applying thermal energy from seawater, a pressure detector that detects the pressure of the vaporized gas sent from this body, and a pressure detection value detected by this pressure detector. and a pressure regulator that compares the detected pressure value with a preset pressure value and outputs the deviation, and a pressure regulator that supplies the detected pressure value to the main body according to the output signal of the pressure regulator so that it always becomes the pressure set value. liquefied gas flow rate control means for controlling the flow rate of the liquefied gas; a function calculator that inputs a signal obtained by adding a delay element to the output signal of the pressure regulator and outputs a monotonically increasing signal; and an output of the function calculator. A liquefied gas vaporization device comprising: seawater flow rate control means for controlling the flow rate of seawater supplied to the main body in accordance with a signal.
させる気化装置本体と、この本体から送出される気化ガ
スの圧力を検出する圧力検出器と、この圧力検出器によ
り検出された圧力検出値と予め設定された圧力設定値と
を比較しその偏差を出力する圧力調節計と、この圧力調
節計の出力信号に応じて前記圧力検出値が常に圧力設定
値となるように前記本体に供給される液化ガスの流量を
制御する液化ガス流量制御手段と、前記圧力調節計の出
力信号に遅れ要素を加えた信号を入力し単調増加する信
号を出力する関数演算器と、前記本体に供給される海水
温度を検出する海水温度検出器と、この海水温度検出器
の出力信号と前記関数演算器の出力信号とを入力し前記
本体に供給される液化ガスを気化するために必要な加熱
量を演算する乗算器と、この乗算器の出力信号に応じて
前記本体に供給される海水流量を制御する海水流量制御
手段とを具備したことを特徴とする液化ガス気化装置。(2) A vaporizer body that vaporizes liquefied natural gas by applying thermal energy from seawater, a pressure detector that detects the pressure of the vaporized gas sent from this body, and a pressure detection value detected by this pressure detector. and a pressure regulator that compares the detected pressure value with a preset pressure value and outputs the deviation, and a pressure regulator that supplies the detected pressure value to the main body according to the output signal of the pressure regulator so that it always becomes the pressure set value. liquefied gas flow rate control means for controlling the flow rate of liquefied gas; a function calculator that inputs a signal obtained by adding a delay element to the output signal of the pressure regulator and outputs a monotonically increasing signal; A seawater temperature detector that detects the seawater temperature, and the output signal of this seawater temperature detector and the output signal of the function calculator are inputted to calculate the amount of heating required to vaporize the liquefied gas supplied to the main body. 1. A liquefied gas vaporization device comprising: a multiplier for controlling the amount of seawater; and a seawater flow rate control means for controlling the flow rate of seawater supplied to the main body in accordance with an output signal of the multiplier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16061584A JPS6138300A (en) | 1984-07-31 | 1984-07-31 | Liquefied gas vaporizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16061584A JPS6138300A (en) | 1984-07-31 | 1984-07-31 | Liquefied gas vaporizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6138300A true JPS6138300A (en) | 1986-02-24 |
Family
ID=15718759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16061584A Pending JPS6138300A (en) | 1984-07-31 | 1984-07-31 | Liquefied gas vaporizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6138300A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63176898A (en) * | 1987-01-13 | 1988-07-21 | Ishikawajima Harima Heavy Ind Co Ltd | Device for vaporing liquefied natural gas |
| US6598408B1 (en) | 2002-03-29 | 2003-07-29 | El Paso Corporation | Method and apparatus for transporting LNG |
| US6688114B2 (en) | 2002-03-29 | 2004-02-10 | El Paso Corporation | LNG carrier |
| US7219502B2 (en) | 2003-08-12 | 2007-05-22 | Excelerate Energy Limited Partnership | Shipboard regasification for LNG carriers with alternate propulsion plants |
| US7293600B2 (en) | 2002-02-27 | 2007-11-13 | Excelerate Energy Limited Parnership | Apparatus for the regasification of LNG onboard a carrier |
| JP2012031980A (en) * | 2010-08-03 | 2012-02-16 | Jfe Engineering Corp | Lng vaporizing device, method for operating the same |
| US9919774B2 (en) | 2010-05-20 | 2018-03-20 | Excelerate Energy Limited Partnership | Systems and methods for treatment of LNG cargo tanks |
-
1984
- 1984-07-31 JP JP16061584A patent/JPS6138300A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63176898A (en) * | 1987-01-13 | 1988-07-21 | Ishikawajima Harima Heavy Ind Co Ltd | Device for vaporing liquefied natural gas |
| JPH0462000B2 (en) * | 1987-01-13 | 1992-10-02 | Ishikawajima Harima Heavy Ind | |
| US7293600B2 (en) | 2002-02-27 | 2007-11-13 | Excelerate Energy Limited Parnership | Apparatus for the regasification of LNG onboard a carrier |
| US6598408B1 (en) | 2002-03-29 | 2003-07-29 | El Paso Corporation | Method and apparatus for transporting LNG |
| US6688114B2 (en) | 2002-03-29 | 2004-02-10 | El Paso Corporation | LNG carrier |
| US7219502B2 (en) | 2003-08-12 | 2007-05-22 | Excelerate Energy Limited Partnership | Shipboard regasification for LNG carriers with alternate propulsion plants |
| US7484371B2 (en) | 2003-08-12 | 2009-02-03 | Excelerate Energy Limited Partnership | Shipboard regasification for LNG carriers with alternate propulsion plants |
| US9919774B2 (en) | 2010-05-20 | 2018-03-20 | Excelerate Energy Limited Partnership | Systems and methods for treatment of LNG cargo tanks |
| JP2012031980A (en) * | 2010-08-03 | 2012-02-16 | Jfe Engineering Corp | Lng vaporizing device, method for operating the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8951019B2 (en) | Multiple gas turbine forwarding system | |
| US9709261B2 (en) | Condensate flow rate control device and condensate flow rate control method for power plant | |
| DK2815168T3 (en) | A device for the supply of gas | |
| JP2006233796A (en) | Lng utilizing power generation plant and its operation method | |
| JPS6138300A (en) | Liquefied gas vaporizer | |
| JP5260157B2 (en) | Natural gas calorie adjustment system and calorie adjustment method | |
| JP3517260B2 (en) | Fuel cell power generator and control method for fuel cell power generator | |
| JP2015055367A (en) | Boiler system | |
| JP2000161084A (en) | Fuel heating device | |
| JP3768335B2 (en) | Fuel supply control apparatus and method | |
| JP2572771Y2 (en) | Operation control device for gas vaporization equipment | |
| US11713718B2 (en) | Dual valve fluid metering system | |
| WO2016052205A1 (en) | Gas turbine equipment, control device therefor, and method for controlling gas turbine equipment | |
| JPH0574758B2 (en) | ||
| JP2003269702A (en) | Deaerator level controller | |
| JPS5845411A (en) | Combustion control system | |
| JPH0462000B2 (en) | ||
| JPH0214598B2 (en) | ||
| JPH0467212A (en) | Turbine steam pressure controller | |
| JPS59109918A (en) | Flow rate controller | |
| JPH0231100A (en) | Lng flow control device | |
| JPS63238304A (en) | Feedwater-heater water-level controller | |
| JPH04321112A (en) | Discharging pressure controller | |
| JPH08261444A (en) | Fuel controller for mixed-fuel firing boiler of heavy oil and emulsion | |
| JPS62203906A (en) | Lng cold thermal power generation control device |