JPH0429197Y2 - - Google Patents
Info
- Publication number
- JPH0429197Y2 JPH0429197Y2 JP1988134651U JP13465188U JPH0429197Y2 JP H0429197 Y2 JPH0429197 Y2 JP H0429197Y2 JP 1988134651 U JP1988134651 U JP 1988134651U JP 13465188 U JP13465188 U JP 13465188U JP H0429197 Y2 JPH0429197 Y2 JP H0429197Y2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- flow rate
- gas
- regulator
- evaporator
- 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
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は液化ガスを気化して外部へ気化ガスす
る液化ガス供給設備に関する。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to liquefied gas supply equipment that vaporizes liquefied gas and supplies the vaporized gas to the outside.
（従来の技術）
従来、液化ガス供給設備においては、ガス消費
量の変動が大きい場合、平均ガス消費量に相当す
る処理容量の大気熱交換式蒸発器を設置し、気化
したガスを圧力調節弁により所定圧力に減圧した
後、レシーバタンクに供給し、該ガスレシーバの
出口側に配設した減圧弁により気化ガスを所定圧
力に減圧してガス消費部へ供給するシステムが採
用されている。また、この種のシステムにおいて
は、通常、ガスレシーバタンク内又はその入口側
の配管内の圧力と目標とする設定圧力とを比較
し、その差に応じて信号を出力する圧力調節器を
設け、該圧力調節器からの信号により前記圧力調
節弁の開度を制御して、ガス消費量の変動に伴う
ガスレシーバタンク内の圧力の変動を抑制するこ
とが行われている。(Prior art) Conventionally, in liquefied gas supply equipment, when there are large fluctuations in gas consumption, an atmospheric heat exchange type evaporator with a processing capacity equivalent to the average gas consumption is installed, and the vaporized gas is passed through a pressure control valve. A system is adopted in which the vaporized gas is reduced to a predetermined pressure by a gas receiver, and then supplied to a receiver tank, and the vaporized gas is reduced to a predetermined pressure by a pressure reducing valve disposed on the outlet side of the gas receiver, and then supplied to a gas consumption section. In addition, this type of system usually includes a pressure regulator that compares the pressure inside the gas receiver tank or the piping on the inlet side of the tank with a target set pressure, and outputs a signal according to the difference. The opening degree of the pressure regulating valve is controlled by a signal from the pressure regulator to suppress fluctuations in pressure within the gas receiver tank due to fluctuations in gas consumption.
（考案が解決しようとする問題点）
しかしながら、このシステムでは、ガス消費量
が平均ガス消費量を超えると、蒸発器からガスレ
シーバタンクに供給される量よりも消費量の方が
多くなるためレシーバタンク内の圧力が低下し、
それを復圧させるべく圧力調節器からの信号によ
り圧力調節弁が全開となるが、蒸発器への液化ガ
ス流量がその処理容量をオーバーしているため、
その出口ガスの温度が低下し、ガス配管材料が低
温ぜい性破壊を起こすという問題がある。これを
防止するため、蒸発器の出口ガス温度を検出する
温度検出器を設け、その検出温度が低温ぜい性破
壊を生じさせる危険温度（−10℃）に達した場合
には、温度検出器からの信号により前記圧力調節
弁を遮断させる制御方式が採用されていはるが、
この方式では、蒸発器からガスレシーバタンクへ
のガス供給が一時的に停止されるため、操業不可
能になるという問題があつた。(Problem that the invention aims to solve) However, in this system, when the gas consumption exceeds the average gas consumption, the consumption is greater than the amount supplied from the evaporator to the gas receiver tank, so the receiver The pressure inside the tank decreases,
In order to restore the pressure, the pressure control valve is fully opened by a signal from the pressure regulator, but since the flow rate of liquefied gas to the evaporator exceeds its processing capacity,
There is a problem in that the temperature of the outlet gas decreases, causing low-temperature brittle failure of the gas piping material. To prevent this, a temperature detector is installed to detect the evaporator outlet gas temperature, and if the detected temperature reaches the dangerous temperature (-10℃) that causes low-temperature brittle failure, A control method is adopted in which the pressure regulating valve is shut off by a signal from the
This method had the problem that the gas supply from the evaporator to the gas receiver tank was temporarily stopped, making it impossible to operate.
この問題を防止する手段としては、断続使用が
頻繁な液化ガス供給設備では、減圧弁の他の流量
調節弁を設置すると共に、レシーバタンクの復圧
を考慮して処理能力の大きな蒸発器を採用するこ
とが考えられるが、設備コストが非常に高くなる
という問題がある。 As a means to prevent this problem, in liquefied gas supply equipment that is used frequently intermittently, install a flow rate control valve in addition to the pressure reducing valve, and use an evaporator with a large processing capacity to take pressure back into the receiver tank. However, there is a problem in that the equipment cost would be extremely high.
従つて、本考案は、液化ガス供給設備に於ける
ガス消費量が蒸発器の処理容量を超える最大消費
量に達した場合でも、蒸発器の処理容量をオーバ
ーさせることなく、ガスを連続的に供給できるよ
うにすることを目的とする。 Therefore, even if the gas consumption in the liquefied gas supply equipment reaches the maximum consumption that exceeds the processing capacity of the evaporator, the present invention can continuously supply gas without exceeding the processing capacity of the evaporator. The purpose is to enable supply.
（問題点を解決するための手段）
本考案は、前記問題を解決するための手段とし
て、液化ガス貯蔵槽から送出される液化ガスを気
化させる蒸発器と、該蒸発器から供給される気化
ガスを収容し、外部への気化ガス供給手段を備え
たガスレシーバと、前記蒸発器からガスレシーバ
に至る流路に配設され、下流側の気化ガスを所定
圧力に調整する圧力調節弁と、該圧力調節弁の下
流側の流路内の圧力と設定圧力とを比較し、その
偏差に応じて前記圧力調節弁の開度を制御する信
号を出力する圧力調節器とからなる液化ガス供給
設備において、前記流路内のガス流量が最大ガス
流量未満の時の標準圧力を設定する標準圧力設定
器と、前記流路内のガス流量を検出する流量検出
器と、その検出ガス流量と予め設定された最大ガ
ス流量とを比較し、その偏差に応じて圧力信号を
出力する流量調節器と、前記標準圧力と流量調節
器の圧力信号とを比較し、低い方の圧力を前記圧
力調節器に設定圧力として出力するセレクタとを
設け、前記流量検出器の検出ガス流量が最大ガス
流量以上のとき、前記流量調節器から前記標準圧
力よりも低い圧力信号を出力させるようにしたも
のである。(Means for Solving the Problems) The present invention provides an evaporator for vaporizing liquefied gas sent out from a liquefied gas storage tank, and a vaporized gas supplied from the evaporator as a means for solving the above problems. a gas receiver that accommodates the vaporized gas and is equipped with means for supplying vaporized gas to the outside; a pressure regulating valve that is disposed in a flow path from the evaporator to the gas receiver and adjusts the vaporized gas on the downstream side to a predetermined pressure; In a liquefied gas supply equipment comprising a pressure regulator that compares the pressure in a flow path downstream of a pressure regulating valve with a set pressure, and outputs a signal to control the opening degree of the pressure regulating valve according to the deviation. , a standard pressure setting device for setting a standard pressure when the gas flow rate in the flow path is less than the maximum gas flow rate; a flow rate detector for detecting the gas flow rate in the flow path; A flow regulator that compares the maximum gas flow rate and outputs a pressure signal according to the deviation, and compares the standard pressure and the pressure signal of the flow regulator, and sets the lower pressure to the pressure regulator. A selector that outputs pressure is provided, and when the detected gas flow rate of the flow rate detector is equal to or higher than the maximum gas flow rate, the flow rate regulator outputs a pressure signal lower than the standard pressure.
（作用）
本考案は、蒸発器からガスレシーバタンクに至
る流路内のガス流量を検出し、その検出ガス流量
が蒸発器の最大容量に対応して予め設定された最
大ガス流量以上である場合は、圧力調節よりも流
量調節を優先させるべく、検出ガス流量と最大ガ
ス流量とを比較し、その偏差に応じて流量調節器
から出力される圧力信号を、標準圧力設定器から
の標準圧力よりも小さくして、流量調節器からの
圧力信号が設定圧力としてセレクタで選択されて
圧力調節器に入力され、圧力調節器からの信号に
より圧力調節弁をガス流量が蒸発器の最大容量以
下になるように制御する一方、それ以外の場合、
即ち、検出ガス流量が最大ガス流量設定値未満の
ときは、その偏差に応じて流量調節器から出力さ
れる圧力信号を、標準圧力設定器で設定される標
準圧力よりも大きくして、セレクタにより標準圧
力設定器からの標準圧力を選択するようにし、固
定された標準圧力と検出圧力との偏差に応じて圧
力調節器からの制御信号より圧力調節弁を制御し
て前記流路中のガス圧力が所定値になるように調
整される。(Operation) The present invention detects the gas flow rate in the flow path from the evaporator to the gas receiver tank, and when the detected gas flow rate is greater than or equal to the maximum gas flow rate preset corresponding to the maximum capacity of the evaporator. In order to give priority to flow rate adjustment over pressure adjustment, the detected gas flow rate and the maximum gas flow rate are compared, and the pressure signal output from the flow rate controller is adjusted according to the deviation from the standard pressure from the standard pressure setting device. The pressure signal from the flow rate regulator is selected as the set pressure by the selector and input to the pressure regulator, and the signal from the pressure regulator causes the pressure control valve to be activated so that the gas flow rate is less than the maximum capacity of the evaporator. otherwise,
That is, when the detected gas flow rate is less than the maximum gas flow rate set value, the pressure signal output from the flow rate controller is made larger than the standard pressure set by the standard pressure setting device according to the deviation, and the selector The standard pressure from the standard pressure setting device is selected, and the pressure regulating valve is controlled by the control signal from the pressure regulator according to the deviation between the fixed standard pressure and the detected pressure to adjust the gas pressure in the flow path. is adjusted so that it becomes a predetermined value.
（実施例）
以下、この考案の一実施例について添付の図面
を参照して説明する。(Example) An example of this invention will be described below with reference to the attached drawings.
図示の液化ガス供給設備は、基本的には、液化
ガス貯槽１と、液化ガスを大気と熱交換させて気
化する大気熱交換式蒸発器２と、気化したガスを
一時的に貯えるガスレシーバタンク３とからな
り、液化ガス貯槽１より送出された液化ガスは蒸
発器２ａまたは２ｂにより気化され、圧力調節弁
４ａ又は４ｂにより所定の圧力に調整され、連続
的に又は断続的にガスレシーバタンク３に送気さ
れ、減圧弁５ａ，５ｂにより消費圧力まで減圧し
て供給されるようにしてある。蒸発器及び調節弁
は、一系統でよいが、故障あるいは点検等に備え
てそれぞれ二系統にしてあり、一方が動作中の場
合、他方はそれぞれの前後に設けられた遮断弁６
により遮断されている。 The illustrated liquefied gas supply equipment basically includes a liquefied gas storage tank 1, an atmospheric heat exchange type evaporator 2 that vaporizes the liquefied gas by exchanging heat with the atmosphere, and a gas receiver tank that temporarily stores the vaporized gas. 3, the liquefied gas sent out from the liquefied gas storage tank 1 is vaporized by the evaporator 2a or 2b, adjusted to a predetermined pressure by the pressure regulating valve 4a or 4b, and is continuously or intermittently transferred to the gas receiver tank 3. The air is supplied after being reduced to the consumption pressure by pressure reducing valves 5a and 5b. The evaporator and control valve may be provided in one system, but in preparation for breakdowns or inspections, there are two systems each, and when one is in operation, the other is connected to the cutoff valve 6 installed before and after each.
It is blocked by.
前記設備には、本考案に従い、ガスレシーバタ
ンク３へ送気されるガスの圧力および流量を制御
し蒸発器２ａ又は２ｂの最大容量以上に処理させ
ないようにする制御システムが設けられている。
このシステムは蒸発器２ａ又は２ｂからガスレシ
ーバタンク３に至る流路１０に配設された流量検
出器１１と、検出された流量変化を直線的な空気
圧変化として取り出し信号として出力する伝送器
１２と、最大ガス流量に対応する空気圧設定値を
設定し、その空気圧設定値と前記伝送器１２から
の空気圧信号との偏差を空気圧信号として出力す
る流量調節器１３と、流路１０中の圧力（二次圧
力）を設定しその設定圧力に対応する空気圧信号
を出力する手動設定器１５と、流量調節器１３か
らの空気圧信号と手動設定器１５からの空気圧信
号のうち低い方の信号を選定して出力するセレク
タ１４と、流路１０内の圧力を検出し、検出圧力
とセレクタから入力される設定圧力との偏差に応
じて調節弁４ａ，４ｂの弁操作器１８を制御する
信号を出力する圧力調節器（PIC）１６とから構
成されている。 According to the present invention, the equipment is equipped with a control system that controls the pressure and flow rate of the gas fed to the gas receiver tank 3 to prevent it from processing more than the maximum capacity of the evaporator 2a or 2b.
This system includes a flow rate detector 11 disposed in a flow path 10 leading from the evaporator 2a or 2b to the gas receiver tank 3, and a transmitter 12 that extracts the detected flow rate change as a linear air pressure change and outputs it as a signal. , a flow rate regulator 13 that sets an air pressure setting value corresponding to the maximum gas flow rate and outputs the deviation between the air pressure setting value and the air pressure signal from the transmitter 12 as an air pressure signal; The manual setting device 15 outputs an air pressure signal corresponding to the set pressure, and the lower one of the air pressure signal from the flow rate regulator 13 and the air pressure signal from the manual setting device 15 is selected. A selector 14 that outputs a pressure that detects the pressure in the flow path 10 and outputs a signal that controls the valve operating devices 18 of the control valves 4a and 4b according to the deviation between the detected pressure and the set pressure input from the selector. It is composed of a controller (PIC) 16.
このように構成された制御システムを備え液化
ガス供給設備を使用する場合、その動作は次のよ
うにして行われる。液化ガスを、例えば、液化ア
ルゴンガス、蒸化器の最大処理容量を700Nm3／
Ｈとし、二次圧力10Kg／cm2でガスレシーバタンク
に送気する場合、まず、流量調節器１３の設定つ
まみにより最大流量を700Nm3／Ｈに設定し、圧
力調整器１６をオート側にして、手動設定器１５
で必要な標準圧力、10Kg／cm2を設定する。この手
動設定器１５の出力信号空気圧は0.2〜1.0Kg／cm2
の範囲で調節しうるが、二次圧力を10Kg／cm2に設
定した場合、0.6Kg／cm2となる。次に、減圧弁５
ａ，５ｂを介してアルゴンガスが消費されると、
流路１０内を流れるアルゴンガス流量が流量検出
器１１で検出され、伝送器１２により流量変化が
空気圧変化として取り出され流量調節器１３に入
力される。この流量調節器１３は最大設定流量に
対応する空気圧信号と伝送器１２からの空気圧信
号との偏差量に応じて空気圧信号を出力するが、
流量が700Nm3／Ｎ以下の場合、1.0〜0.6Kg／cm2の
範囲の空気圧信号を出力し、この出力信号空気圧
と手動設定器１５による調圧出力0.6Kg／cm2がセ
レクタ１４に入力される。セレクタ１４では２つ
の入力のうち低圧側、すなわち、手動設定器１４
からの調圧出力0.6Kg／cm2を選定し、これが設定
圧力として圧力調節１６に入力される。従つて、
圧力調節１６の設定圧力は変わらず、従来のもの
と同様、手動設定器１５により設定された設定値
10Kg／cm2と検出された圧力との偏差に応じて出力
し、これに応じて調節弁４ａ，４ｂが制御され
る。 When using a liquefied gas supply facility equipped with a control system configured as described above, its operation is performed as follows. Liquefied gas, for example, liquefied argon gas, the maximum processing capacity of the evaporator is 700Nm 3 /
When supplying air to the gas receiver tank at a secondary pressure of 10 Kg/cm 2 , first set the maximum flow rate to 700 Nm 3 /H using the setting knob of the flow regulator 13, and set the pressure regulator 16 to the auto side. , manual setting device 15
Set the required standard pressure, 10Kg/cm 2 . The output signal air pressure of this manual setting device 15 is 0.2 to 1.0Kg/cm 2
However, if the secondary pressure is set to 10Kg/cm 2 , it will be 0.6Kg/cm 2 . Next, pressure reducing valve 5
When argon gas is consumed via a and 5b,
The flow rate of argon gas flowing through the flow path 10 is detected by a flow rate detector 11 , and the change in flow rate is detected as a change in air pressure by a transmitter 12 and inputted to a flow rate regulator 13 . The flow rate regulator 13 outputs an air pressure signal according to the amount of deviation between the air pressure signal corresponding to the maximum set flow rate and the air pressure signal from the transmitter 12.
When the flow rate is 700Nm 3 /N or less, an air pressure signal in the range of 1.0 to 0.6Kg/cm 2 is output, and this output signal air pressure and the pressure regulation output 0.6Kg/cm 2 from the manual setting device 15 are input to the selector 14. Ru. The selector 14 selects the lower pressure side of the two inputs, that is, the manual setting device 14.
A pressure regulation output of 0.6 Kg/cm 2 is selected from the pressure regulator 16, and this is input to the pressure regulator 16 as the set pressure. Therefore,
The set pressure of the pressure regulator 16 does not change, and is the set value set by the manual setting device 15 like the conventional one.
An output is output depending on the deviation between 10 kg/cm 2 and the detected pressure, and the control valves 4a and 4b are controlled accordingly.
他方、流量が700Nm3／Ｈを超える場合には、
流量調節器１３の出力空気圧が0.6〜0.2Kg／cm2と
なるため、これがセレクタ１４により選定され
て、圧力調節器１６に入力される。この入力に応
じて圧力調節器の設定圧力が０Kg／cm2側へ補正さ
れ、圧力調節器１６の出力はその設定値と検出出
力（指示値）の偏差に応じて0.6〜0.2Kg／cm2に変
化し、調節弁４ａ，４ｂの開度が絞られ、流量が
700Nm3／Ｈにおさえられる。この場合、当初の
圧力設定に制御されている調節弁の開度を絞るこ
とを主目的としているため、二次圧力の設定値10
Kg／cm2に対する圧力バランスはくずれ、設定値以
下となる。 On the other hand, if the flow rate exceeds 700Nm 3 /H,
Since the output air pressure of the flow rate regulator 13 is 0.6 to 0.2 Kg/cm 2 , this is selected by the selector 14 and input to the pressure regulator 16 . According to this input, the set pressure of the pressure regulator is corrected to the 0 Kg/cm 2 side, and the output of the pressure regulator 16 is 0.6 to 0.2 Kg/cm 2 depending on the deviation between the set value and the detected output (indication value). The opening of the control valves 4a and 4b is reduced, and the flow rate is reduced.
It can be suppressed to 700Nm 3 /H. In this case, the main purpose is to reduce the opening degree of the control valve that is controlled to the initial pressure setting, so the secondary pressure setting value is 10
The pressure balance with respect to Kg/ cm2 collapses and becomes below the set value.
なお、蒸発器の出力側には、従来のものと同様
に、その出口ガスの温度を検出する温度検出器１
９が配設され、圧力、流量の制御の不調及び配管
等からのガス洩れなどにより蒸発器通過量が容量
オーバーとなり、蒸発器の出力ガス温度が−10℃
を超えた場合に、温度検出器１９からの信号によ
り圧力調節弁４ａ，４ｂを完全に閉とし、ガスを
遮断するようにしてある。 Furthermore, on the output side of the evaporator, there is a temperature detector 1 that detects the temperature of the outlet gas, similar to the conventional one.
9 is installed, the amount passing through the evaporator exceeds its capacity due to malfunctions in pressure and flow control, gas leaks from piping, etc., and the output gas temperature of the evaporator drops to -10℃.
When the temperature exceeds this temperature, the pressure control valves 4a and 4b are completely closed in response to a signal from the temperature detector 19, and the gas is cut off.
（考案の効果）
前記説明から明らかなように、この考案は、蒸
発器からガスレシーバタンクに至る流路内のガス
流量を検出する流量検出器と、その検出ガス流量
と予め設定された最大ガス流量とを比較し、その
差に応じて圧力信号を出力する流量調節器、前記
標準圧力と流量調節器の圧力信号とを比較し、低
い方の圧力を前記圧力調節器に設定圧力として出
力するセレクタとを設け、ガス流量が最大設定流
量以上のときは、セレクタにより流量調節器から
出力される標準圧力よりも低い圧力信号を設定圧
力として圧力調節器に供給し、それらの偏差に応
じて流路内の圧力をフイードバツク制御する制御
系の設定圧力を補正することにより流路中のガス
圧力および最大流量を制御し、前記流体路内のガ
ス流量を前記蒸発器の最大容量以下に抑制するよ
うにしたので、蒸発器として平均ガス消費量に相
当する処理容量を有するものを用いた場合でも、
一個の圧力調節弁で、蒸発器の容量をオーバーさ
せることなく、蒸発器の出口側の配管温度が異常
に低下するのを防止でき、運転を持続させること
ができる。従つて、容量の大きい蒸発器を使用す
る必要がなく、制御システムも簡単であるため、
設備の低コスト化を図ることができるなど優れた
効果を奏する。(Effect of the invention) As is clear from the above description, this invention includes a flow rate detector that detects the gas flow rate in the flow path from the evaporator to the gas receiver tank, and a sensor that detects the detected gas flow rate and a preset maximum gas flow rate. A flow rate regulator that compares the flow rate and outputs a pressure signal according to the difference, compares the standard pressure and the pressure signal of the flow rate regulator, and outputs the lower pressure as a set pressure to the pressure regulator. When the gas flow rate exceeds the maximum set flow rate, the selector supplies a pressure signal lower than the standard pressure output from the flow rate regulator to the pressure regulator as the set pressure, and adjusts the flow rate according to the deviation. The gas pressure and maximum flow rate in the flow path are controlled by correcting the set pressure of a control system that performs feedback control of the pressure in the flow path, and the gas flow rate in the fluid path is suppressed to below the maximum capacity of the evaporator. Therefore, even if an evaporator with a processing capacity equivalent to the average gas consumption is used,
With one pressure regulating valve, the temperature of the piping on the outlet side of the evaporator can be prevented from dropping abnormally without exceeding the capacity of the evaporator, and operation can be continued. Therefore, there is no need to use a large capacity evaporator and the control system is simple.
It has excellent effects such as being able to reduce the cost of equipment.
図はこの考案の一実施例を示す液化ガス消費設
備のフローシートである。
１……液化ガス貯槽、２ａ，２ｂ……蒸発器、
３……ガスレシーバタンク、４ａ，４ｂ……圧力
調節弁、１１……流量検出器、１２……伝送器、
１３……流量調節器、１４……セレクタ、１５…
…圧力設定器、１６……圧力調節器。
The figure is a flow sheet of liquefied gas consumption equipment showing one embodiment of this invention. 1... Liquefied gas storage tank, 2a, 2b... Evaporator,
3...Gas receiver tank, 4a, 4b...Pressure control valve, 11...Flow rate detector, 12...Transmitter,
13...Flow rate regulator, 14...Selector, 15...
...Pressure setting device, 16...Pressure regulator.
Claims (1)
させる蒸発器と、該蒸発器から供給される気化ガ
スを収容し、外部への気化ガス供給手段を備えた
ガスレシーバと、前記蒸発器からガスレシーバに
至る流路に配設され、下流側の気化ガスを所定圧
力に調整する圧力調節弁と、該圧力調節弁の下流
側の流路内の圧力と設定圧力とを比較し、その偏
差に応じて前記圧力調節弁の開度を制御する信号
を出力する圧力調節器とからなる液化ガス供給設
備において、前記流路内のガス流量が最大ガス流
量未満の時の標準圧力を設定する標準圧力設定器
と、前記流路内のガス流量を検出する流量検出器
と、その検出ガス流量と予め設定された最大ガス
流量とを比較し、その偏差に応じて圧力信号を出
力する流量調節器と、前記標準圧力と流量調節器
の圧力信号とを比較し、低い方の圧力を前記圧力
調節器に設定圧力として出力するセレクタとを設
け、前記流量検出器の検出ガス流量が最大ガス流
量以上のとき、前記流量調節器から前記標準圧力
よりも低い圧力信号を出力させるようにしたこと
を特徴とする液化ガス供給設備。 an evaporator that vaporizes liquefied gas sent out from a liquefied gas storage tank; a gas receiver that accommodates vaporized gas supplied from the evaporator and is equipped with means for supplying vaporized gas to the outside; and a gas receiver from the evaporator. A pressure regulating valve is installed in the flow path leading to the downstream side and adjusts the downstream vaporized gas to a predetermined pressure, and the pressure in the flow path downstream of the pressure regulating valve is compared with the set pressure, and the pressure is adjusted according to the deviation. and a pressure regulator that outputs a signal to control the opening degree of the pressure regulating valve, the standard pressure setting sets a standard pressure when the gas flow rate in the flow path is less than the maximum gas flow rate. a flow rate detector that detects the gas flow rate in the flow path; a flow rate regulator that compares the detected gas flow rate with a preset maximum gas flow rate and outputs a pressure signal according to the deviation; a selector that compares the standard pressure and a pressure signal from a flow rate regulator and outputs the lower pressure to the pressure regulator as a set pressure, and when the detected gas flow rate of the flow rate detector is equal to or higher than the maximum gas flow rate; , A liquefied gas supply facility, characterized in that the flow rate regulator outputs a pressure signal lower than the standard pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988134651U JPH0429197Y2 (en) | 1988-10-13 | 1988-10-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988134651U JPH0429197Y2 (en) | 1988-10-13 | 1988-10-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0169999U JPH0169999U (en) | 1989-05-10 |
| JPH0429197Y2 true JPH0429197Y2 (en) | 1992-07-15 |
Family
ID=31393604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988134651U Expired JPH0429197Y2 (en) | 1988-10-13 | 1988-10-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0429197Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009108913A (en) * | 2007-10-30 | 2009-05-21 | Tokyo Gas Co Ltd | Liquefied fuel gas supply device |
| JP2009115178A (en) * | 2007-11-06 | 2009-05-28 | Chugoku Electric Power Co Inc:The | Liquefied natural gas satellite facility |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5464075A (en) * | 1977-11-01 | 1979-05-23 | Babcock Hitachi Kk | Evaporator for liquefied gas |
| JPS5670197A (en) * | 1979-11-14 | 1981-06-11 | Hitachi Ltd | Liquid level controller for evaporator |
-
1988
- 1988-10-13 JP JP1988134651U patent/JPH0429197Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0169999U (en) | 1989-05-10 |
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