JPH05215297A - Heating and decompressing system commonly used for gaseous phase of liquefied gas - Google Patents
Heating and decompressing system commonly used for gaseous phase of liquefied gasInfo
- Publication number
- JPH05215297A JPH05215297A JP2395792A JP2395792A JPH05215297A JP H05215297 A JPH05215297 A JP H05215297A JP 2395792 A JP2395792 A JP 2395792A JP 2395792 A JP2395792 A JP 2395792A JP H05215297 A JPH05215297 A JP H05215297A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- solenoid valve
- gas
- liquefied gas
- container
- 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
- 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
- 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
- F17C2205/0326—Valves electrically actuated
-
- 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
- F17C2205/0338—Pressure regulators
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、液化ガスの気相併用加
温減圧システムに係り、特に、気化筒の寿命を延ばし電
磁弁の故障発生を防ぐとともに供給ガスの圧力変動を抑
制するのに好適な液化ガス気相併用加温減圧システムに
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vapor phase heating and depressurizing system for liquefied gas, and more particularly, to extend the life of a vaporizing cylinder, prevent malfunction of a solenoid valve, and suppress pressure fluctuation of supply gas. The present invention relates to a suitable liquefied gas vapor phase heating and decompression system.
【０００２】[0002]
【従来の技術】例えば液化石油ガスのような液化ガスの
気相併用加温減圧方式は、液化ガス容器（以下、容器と
いう）内圧力の上昇、下降に従って、容器内の気相から
導かれた気体ガス流路、及び同容器内の液相から導かれ
たガス液体を熱媒により加温して気化させる気化筒を通
しガス化して導く流路の、いずれか一方からガスを供給
する方式である。2. Description of the Related Art A heating and depressurizing method for vapor phase combined use of liquefied gas such as liquefied petroleum gas is derived from the vapor phase in a liquefied gas container (hereinafter referred to as "container") as the pressure in the container rises and falls. A method of supplying gas from one of a gas gas flow path and a flow path that gasifies and guides a gas liquid led from a liquid phase in the container by a heating medium to vaporize it through a vaporization cylinder. is there.
【０００３】従来の液化ガス気相併用加温減圧方式で
は、容器の液相から導かれた第１の流路の気化筒の下流
に設けられた第１圧力調整器の設定圧力が、容器の気相
から導かれた第２の流路に設けられた第２圧力調整器の
設定圧力より少し高い値に設定され、気化筒の上流側流
路に設けられた背圧弁が、ガス液体供給圧力が背圧弁の
設定圧力以下になると開くようになっている。In the conventional liquefied gas vapor phase combined heating and depressurization system, the set pressure of the first pressure regulator provided downstream of the vaporization cylinder of the first flow path from the liquid phase of the container is equal to that of the container. The back pressure valve, which is set to a value slightly higher than the set pressure of the second pressure regulator provided in the second flow path introduced from the gas phase, and which is provided in the upstream flow path of the vaporization cylinder, Is designed to open when the pressure falls below the set pressure of the back pressure valve.
【０００４】容器の圧力が高いときは、背圧弁が閉止し
ているため気化筒は使われず、ガスは容器の気相から取
り出され第２圧力調整器で減圧されて供給される。容器
の気相からのガス供給が続くと、液相の蒸発潜熱により
液温が下がり、それに伴って容器の内圧も低下してく
る。こうして第１流路の圧力が背圧弁の設定値以下にな
ると、背圧弁が開き気化筒内へ液体が流入し気化され、
第１圧力調整器で減圧されてガスが供給される。When the pressure in the container is high, the vaporization cylinder is not used because the back pressure valve is closed, and the gas is taken out from the gas phase of the container and supplied after being decompressed by the second pressure regulator. When the gas supply from the gas phase of the container continues, the liquid temperature decreases due to the latent heat of vaporization of the liquid phase, and the internal pressure of the container also decreases accordingly. In this way, when the pressure in the first flow path becomes equal to or lower than the set value of the back pressure valve, the back pressure valve opens and the liquid flows into the vaporization cylinder and is vaporized,
Gas is supplied after being decompressed by the first pressure regulator.
【０００５】このとき容器では、外気からの吸熱によっ
て容器内液温が上昇し、それに伴って気化筒の出口圧力
も徐々に上昇する。そして容器内の圧力が背圧弁の設定
圧力より高くなれば背圧弁が閉じて、はじめの気相ガス
供給の状態に移る。以上のような状態が交互に繰り返さ
れるが、いずれの状態でも気化筒の出口圧力は背圧弁の
設定圧力以上にはならないように保持される。At this time, in the container, the temperature of the liquid in the container rises due to heat absorption from the outside air, and the outlet pressure of the vaporizing cylinder also rises accordingly. When the pressure in the container becomes higher than the set pressure of the back pressure valve, the back pressure valve closes, and the initial state of gas phase gas supply is entered. The above-mentioned states are alternately repeated, but in any state, the outlet pressure of the vaporizing cylinder is maintained so as not to exceed the set pressure of the back pressure valve.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、容器内
圧力が背圧弁の設定圧力まで降下すると、以後背圧弁
は、頻繁に開閉を繰り返すので気化筒内圧力が頻繁に変
動し、気化筒に繰り返し応力が発生することになる。ま
た、頻繁な作動によって背圧弁の寿命を縮めることにも
なる。さらに気化筒出口のガス圧力が変動を続ける。However, when the internal pressure of the container drops to the set pressure of the back pressure valve, the back pressure valve repeatedly opens and closes frequently thereafter, so that the internal pressure of the vaporizing cylinder frequently changes and the vaporizing cylinder is repeatedly stressed. Will occur. Moreover, the frequent operation also shortens the life of the back pressure valve. Furthermore, the gas pressure at the vaporization cylinder outlet continues to fluctuate.
【０００７】また、停電時に気化筒内の熱媒加熱用の熱
源が停止すると、容器液相からの液体がガス化されずに
ガス消費側へ流出する危険があるため、液流出防止装置
として熱媒温度の降下を検知して液入口側を閉止するサ
ーモバルブを設ける必要がある。Further, if the heat source for heating the heating medium in the vaporization cylinder is stopped during a power failure, there is a risk that the liquid from the liquid phase of the container will not be gasified and will flow out to the gas consuming side. It is necessary to provide a thermo-valve that detects the drop in medium temperature and closes the liquid inlet side.
【０００８】本発明の目的は、上記のような問題点を解
決するために、気化筒内の圧力変動を抑制し、気化筒及
び電磁弁の寿命を延ばすとともに、停電時の液流出をも
防止できる液化ガス気相併用加温減圧システムを提供す
ることである。In order to solve the above problems, the object of the present invention is to suppress the pressure fluctuation in the vaporizing cylinder, prolong the life of the vaporizing cylinder and the solenoid valve, and prevent the outflow of liquid at the time of power failure. It is to provide a heating / depressurizing system capable of using a liquefied gas in a vapor phase.
【０００９】[0009]
【課題を解決するための手段】本発明は上記の目的を達
成するために、液化ガス容器と、液化ガス容器の液相部
から導いた液化ガス液体を熱媒により加温して気化させ
る気化筒と、液化ガス容器の液相部から液化ガス液体を
導き、気化筒内で気化された液化ガス気体を第１圧力調
整器で減圧してガス消費側へ供給する第１の流路と、液
化ガス容器の気相部から液化ガス気体を導き第２圧力調
整器で減圧してガス消費側へ供給する第２の流路とを備
えた液化ガス気相併用加温減圧システムにおいて、第１
圧力調整器が第２圧力調整器より高い作動圧力に設定さ
れ、第１の流路の気化筒より上流側に圧力スイッチ及び
圧力スイッチの出力信号により開閉する電磁弁を設け、
電磁弁の開く圧力が閉じる圧力より低く設定され、かつ
電磁弁が非通電時に閉じる構造である液化ガス気相併用
加温減圧システムを提供する。In order to achieve the above-mentioned object, the present invention is a vaporization in which a liquefied gas container and a liquefied gas liquid introduced from a liquid phase portion of the liquefied gas container are heated and vaporized by a heating medium. A cylinder and a first flow path for guiding the liquefied gas liquid from the liquid phase part of the liquefied gas container, decompressing the liquefied gas gas vaporized in the vaporization cylinder with a first pressure regulator and supplying it to the gas consumption side, A liquefied gas vapor phase combined heating and depressurization system comprising: a second flow path for guiding a liquefied gas gas from a vapor phase portion of a liquefied gas container and decompressing it by a second pressure regulator to supply it to a gas consuming side.
The pressure regulator is set to an operating pressure higher than that of the second pressure regulator, and a solenoid valve that opens and closes according to the output signal of the pressure switch and the pressure switch is provided on the upstream side of the vaporization cylinder of the first flow path,
Provided is a liquefied gas vapor phase combined heating and depressurization system having a structure in which an opening pressure of a solenoid valve is set lower than a closing pressure and the solenoid valve is closed when not energized.
【００１０】[0010]
【作用】上記の構成によれば、第１圧力調整器が第２圧
力調整器より高い圧力に設定され、気化筒入口側に設け
られた電磁弁がその上流側の圧力スイッチの出力信号に
より開閉し、電磁弁が開く圧力が閉じる圧力より低く設
定されているから、容器の圧力が高いときは電磁弁が閉
止しているため気化筒は使われず、ガスは専ら容器の気
相取り出し口から第２の流路を通り、第２圧力調整器を
通ってガス消費側へ供給される。このとき、第１圧力調
整器は開いているので気化筒内圧力はガス供給圧力と同
じになる。According to the above construction, the pressure of the first pressure regulator is set to be higher than that of the second pressure regulator, and the solenoid valve provided on the inlet side of the vaporizing cylinder is opened / closed by the output signal of the pressure switch on the upstream side thereof. However, since the solenoid valve is set to have a lower opening pressure than a closing pressure, when the pressure in the container is high, the solenoid valve is closed and the vaporizer is not used. It is supplied to the gas consuming side through the second flow path and the second pressure regulator. At this time, since the first pressure regulator is open, the vaporizing cylinder internal pressure becomes the same as the gas supply pressure.
【００１１】容器の気相取り出し口からのガス供給が続
くと、容器内の液化ガス液体の蒸発潜熱により液温が下
がり、それに伴って容器内圧力が低下する。このように
して容器内圧力が電磁弁開の設定圧力以下に下がると、
電磁弁が開いて第１の流路を通り気化筒へ液化ガス液体
が導入され、熱源により加熱された気化筒内の熱媒によ
り気化されて第１圧力調整器を通ってガス消費側へ供給
される。第１圧力調整器は第２圧力調整器よりも設定圧
力が高いから、第１圧力調整器が作動すれば第２圧力調
整器は閉止し、容器の気相取り出し口からのガス供給は
止まる。When the gas is continuously supplied from the vapor phase outlet of the container, the liquid temperature is lowered by the latent heat of vaporization of the liquefied gas liquid in the container, and the internal pressure of the container is reduced accordingly. In this way, when the pressure inside the container drops below the set pressure for opening the solenoid valve,
The solenoid valve opens and the liquefied gas liquid is introduced into the vaporization cylinder through the first flow path, and is vaporized by the heat medium in the vaporization cylinder heated by the heat source and supplied to the gas consumption side through the first pressure regulator. To be done. Since the set pressure of the first pressure regulator is higher than that of the second pressure regulator, when the first pressure regulator operates, the second pressure regulator is closed and the gas supply from the vapor phase outlet of the container is stopped.
【００１２】すると、容器内では外気からの吸熱ととも
に液温が上昇し、それに伴って気化筒圧力も徐々に上昇
する。そして容器の圧力が電磁弁閉の圧力より高くなれ
ば電磁弁が閉止して、始めの気相からのガス供給状態に
戻る。Then, in the container, the liquid temperature rises with the heat absorption from the outside air, and the vaporizing cylinder pressure gradually rises accordingly. Then, when the pressure in the container becomes higher than the pressure for closing the solenoid valve, the solenoid valve closes, and the state of gas supply from the initial gas phase is restored.
【００１３】このように、電磁弁開の圧力から電磁弁閉
の圧力(例えば開の圧力６ｋgf／cm2から閉の圧力９ｋgf
／cm2）に容器内圧力が上昇する間は電磁弁が開いたま
まであるから、従来のシステムに比べ弁の開閉頻度が著
しく減少する。Thus, the pressure from the opening of the solenoid valve to the pressure of closing the solenoid valve (for example, the opening pressure of 6 kgf / cm 2 to the closing pressure of 9 kgf).
Since the solenoid valve remains open while the pressure in the container rises to / cm 2 ), the frequency of opening and closing the valve is significantly reduced compared to the conventional system.
【００１４】また、非通電時閉止型の電磁弁を用いてい
るから、停電時に気化筒に液化ガス液体が流入するおそ
れはない。従って、特に液流入防止装置を設ける必要が
ない。Further, since the electromagnetic valve which is closed when not energized is used, there is no possibility that the liquefied gas liquid will flow into the vaporizing cylinder at the time of power failure. Therefore, it is not necessary to provide a liquid inflow prevention device.
【００１５】[0015]
【実施例】本発明の実施例を図１及び図２により説明す
る。液化ガス容器１の液相取り出し口２から取り出され
た液化ガスの液体は、第１の流路３を通って気化筒７へ
入り、コイル状導管８を通る間に熱源１０により加熱さ
れる気化筒内の熱媒９により加温気化され、気体となっ
て気化筒７を出て第１圧力調整器１１により減圧されて
ガス消費側１６へ供給される。Embodiments of the present invention will be described with reference to FIGS. The liquid of the liquefied gas taken out from the liquid phase take-out port 2 of the liquefied gas container 1 enters the vaporization cylinder 7 through the first flow path 3, and is vaporized by the heat source 10 while passing through the coiled conduit 8. It is heated and vaporized by the heat medium 9 in the cylinder, becomes a gas, exits the vaporization cylinder 7, is decompressed by the first pressure regulator 11, and is supplied to the gas consuming side 16.
【００１６】第１の流路３の気化筒７の上流側には圧力
スイッチ４と、圧力スイッチ４が発する信号により開閉
し非通電時閉止型の電磁弁５と、これらのバイパスに逆
止弁１２が設けられている。圧力スイッチ４の信号は制
御盤６を介して電磁弁５に伝達される。A pressure switch 4 on the upstream side of the vaporization cylinder 7 of the first flow path 3, a solenoid valve 5 which is opened and closed by a signal generated by the pressure switch 4 and is closed when not energized, and a check valve for bypassing them. 12 are provided. The signal of the pressure switch 4 is transmitted to the solenoid valve 5 via the control panel 6.
【００１７】一方、容器１の気相取り出し口１３から取
り出された液化ガスの気体は、第２の流路１４を通って
第２圧力調整器１５により減圧されてガス消費側１６へ
供給される。On the other hand, the gas of the liquefied gas taken out from the vapor-phase take-out port 13 of the container 1 passes through the second flow path 14 and is decompressed by the second pressure regulator 15 and supplied to the gas consuming side 16. ..
【００１８】第１圧力調整器１１の設定圧力は０．８ｋ
gf／cm2で、第２圧力調整器１５の設定圧力０．７ｋgf
／cm2よりも高く設定され、第１の流路３からガスが供
給されている間は第２の流路１４は閉止される。The set pressure of the first pressure regulator 11 is 0.8k.
Setting pressure of the second pressure regulator 15 is 0.7 kgf at gf / cm 2.
It is set higher than / cm 2 and the second flow passage 14 is closed while the gas is being supplied from the first flow passage 3.
【００１９】電磁弁５の作動圧力は６ｋgf／cm2で開き
９ｋgf／cm2で閉止するように設定されているから、容
器１の圧力が９ｋgf／cm2より高い間は電磁弁５は閉止
されて気化筒７は使われず、ガスは容器の気相取り出し
口１３から第２の流路１４を通ってガス消費側１６へ供
給される。The operating pressure of the solenoid valve 5 from being set so as to close at 9 kgf / cm 2 open at 6 kgf / cm 2, while the pressure in the vessel 1 is higher than 9 kgf / cm 2 electromagnetic valve 5 is closed The vaporization cylinder 7 is not used, and the gas is supplied from the vapor phase outlet 13 of the container to the gas consumption side 16 through the second flow path 14.
【００２０】この状態が続くと、容器１内の液体の温度
が徐々に下がるとともに容器内圧力が低下し、６ｋgf／
cm2以下になると電磁弁５が開いて気化筒７の使用が始
まる。こうしてガス供給は第１の流路３に移る。If this state continues, the temperature of the liquid in the container 1 is gradually lowered and the pressure in the container is lowered to 6 kgf /
When it becomes less than cm 2 , the solenoid valve 5 opens and the use of the vaporizing cylinder 7 starts. Thus, the gas supply is transferred to the first flow path 3.
【００２１】容器１内では外気からの吸熱により液温が
上昇し内圧も徐々に上昇する。そして、圧力が９ｋgf／
cm2より高くなると電磁弁１５が閉止して、気相からの
ガス供給状態に変る。In the container 1, the liquid temperature rises due to heat absorption from the outside air, and the internal pressure also rises gradually. And the pressure is 9kgf /
When it becomes higher than cm 2 , the solenoid valve 15 is closed and the state of gas supply from the gas phase is changed.
【００２２】第２図の電磁弁作動及び容器、気化筒内圧
力の経時変化を示す線図に示すように、容器１内圧力が
６ｋgf／cm2から９ｋgf／cm2に上昇する間は電磁弁１５
が開いているので、電磁弁１５の開閉頻度は、第４図の
線図に示す背圧弁２１を用いた従来のシステムに比べ大
幅に減少する。The solenoid valve actuation and the container of FIG. 2, as shown in the diagram showing the time course of vaporization cylinder pressure, while the container 1 in the pressure is increased from 6 kgf / cm 2 to 9 kgf / cm 2 solenoid valve 15
Since the valve is open, the opening / closing frequency of the solenoid valve 15 is significantly reduced as compared with the conventional system using the back pressure valve 21 shown in the diagram of FIG.
【００２３】また、電磁弁１５は非通電時閉止する構造
であるから停電時には閉止し、気化筒７に液体が流入し
て加温気化されずに液体の状態でガス消費側１６に流れ
るようなおそれはない。このような電磁弁１５を用いる
ことにより、第３図に示す従来システムのようなサーモ
バルブ２２による液流入防止装置を設ける必要はない。Further, since the solenoid valve 15 has a structure which is closed when it is not energized, it is closed when there is a power failure, so that the liquid flows into the vaporizing cylinder 7 and is not vaporized by heating but flows to the gas consuming side 16 in a liquid state. That's not it. By using such an electromagnetic valve 15, it is not necessary to provide a liquid inflow prevention device by the thermo valve 22 unlike the conventional system shown in FIG.
【００２４】[0024]
【発明の効果】本発明によれば、液化ガス容器内圧の所
定の圧力変動範囲において開く電磁弁を、容器の液相取
り出し口から気化器に至る液体流路に設けたから、電磁
弁の開閉頻度が減少し、気化筒内の圧力変動も緩慢とな
り、気化筒及び電磁弁の故障発生を抑制し寿命を延ばす
ことができる。According to the present invention, since the electromagnetic valve that opens in a predetermined pressure fluctuation range of the internal pressure of the liquefied gas container is provided in the liquid flow path from the liquid phase outlet of the container to the vaporizer, the frequency of opening and closing the electromagnetic valve is increased. Is reduced, pressure fluctuations in the vaporization cylinder are slowed down, occurrence of failures in the vaporization cylinder and the solenoid valve can be suppressed, and the life can be extended.
【００２５】また、電磁弁は非通電時閉止する構造であ
るから、停電時には液体流路が閉止され、液体がガス消
費側へ流れる危険を防止することができる。Further, since the solenoid valve has a structure which is closed when not energized, it is possible to prevent the risk that the liquid flow path is closed at the time of power failure and the liquid flows to the gas consuming side.
【図１】本発明の液化ガス気相併用加温減圧システムの
実施例の全体構成図である。FIG. 1 is an overall configuration diagram of an embodiment of a liquefied gas vapor phase combined heating and depressurizing system of the present invention.
【図２】本発明の実施例の電磁弁作動、容器内圧力およ
び気化筒内圧力の経時変化を示す線図である。FIG. 2 is a diagram showing changes over time in solenoid valve operation, container internal pressure, and vaporization cylinder internal pressure according to an embodiment of the present invention.
【図３】従来の液化ガス気相併用加温減圧システムの全
体構成図である。FIG. 3 is an overall configuration diagram of a conventional liquefied gas vapor phase combined heating and decompression system.
【図４】図３の従来のシステムの背圧弁作動、容器内圧
力および気化筒内圧力の経時変化を示す線図である。FIG. 4 is a diagram showing changes over time in back pressure valve operation, container pressure, and vaporization cylinder pressure in the conventional system of FIG.
１ 液化ガス容器 ２ 液相取り出し口 ３ 第１の流路 ４ 圧力スイッチ ５ 電磁弁 ６ 制御盤 ７ 気化筒 ８ コイル状導管 ９ 熱媒 １０ 熱源 １１ 第１圧力調整器 １２ 逆止弁 １３ 気相取り出し口 １４ 第２の流路 １５ 第２圧力調整器 １６ ガス消費側 ２１ 背圧弁 ２２ サーモバルブ 1 Liquefied gas container 2 Liquid phase outlet 3 First flow path 4 Pressure switch 5 Solenoid valve 6 Control panel 7 Vaporization cylinder 8 Coiled conduit 9 Heat medium 10 Heat source 11 First pressure regulator 12 Check valve 13 Gas phase extraction Port 14 Second flow path 15 Second pressure regulator 16 Gas consumption side 21 Back pressure valve 22 Thermo valve
Claims (1)
部から導いた液化ガス液体を熱媒により加温して気化さ
せる気化筒と、前記液化ガス容器の液相部から前記液体
を導き前記気化筒内で気化された液化ガス気体を第１圧
力調整器で減圧してガス消費側へ供給する第１の流路
と、前記液化ガス容器の気相部から液化ガス気体を導き
第２圧力調整器で減圧して前記ガス消費側へ供給する第
２の流路とを備えた液化ガス気相併用加温減圧システム
において、前記第１圧力調整器が前記第２圧力調整器よ
り高い作動圧力に設定され、前記第１の流路の前記気化
筒より上流側に圧力スイッチ及び該圧力スイッチの出力
信号により開閉する電磁弁を設け、該電磁弁の開く圧力
が閉じる圧力より低く設定され、かつ該電磁弁が非通電
時に閉じる構造としたことを特徴とする液化ガス気相併
用加温減圧システム。1. A liquefied gas container, a vaporization cylinder that heats and vaporizes a liquefied gas liquid introduced from a liquid phase portion of the liquefied gas container by a heating medium, and a liquid from the liquid phase portion of the liquefied gas container. A first flow path for guiding the liquefied gas gas vaporized in the vaporization cylinder by the first pressure regulator to supply it to the gas consuming side, and for guiding the liquefied gas gas from the gas phase portion of the liquefied gas container. In a liquefied gas vapor phase combined warming depressurization system including a second flow path that is depressurized by two pressure regulators and supplied to the gas consuming side, the first pressure regulator is higher than the second pressure regulator. A pressure switch and a solenoid valve that opens and closes according to an output signal of the pressure switch are provided on the upstream side of the vaporization cylinder in the first flow path, and the opening pressure of the solenoid valve is set to be lower than the closing pressure. In addition, the solenoid valve has a structure that closes when it is not energized. A heating and decompression system for combined use with a liquefied gas and a vapor phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2395792A JPH05215297A (en) | 1992-02-10 | 1992-02-10 | Heating and decompressing system commonly used for gaseous phase of liquefied gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2395792A JPH05215297A (en) | 1992-02-10 | 1992-02-10 | Heating and decompressing system commonly used for gaseous phase of liquefied gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05215297A true JPH05215297A (en) | 1993-08-24 |
Family
ID=12125032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2395792A Pending JPH05215297A (en) | 1992-02-10 | 1992-02-10 | Heating and decompressing system commonly used for gaseous phase of liquefied gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05215297A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030064232A (en) * | 2002-01-23 | 2003-07-31 | 이토고키 가부시키가이샤 | Vaporizer |
| JP2009002396A (en) * | 2007-06-20 | 2009-01-08 | Kagla Vaportech Corp | Lp gas supply system |
| CN102182914A (en) * | 2011-04-02 | 2011-09-14 | 天津华迈燃气装备股份有限公司 | Single-coiled dual-use electric heating natural gas gasifying heat exchanger |
| CN102200218A (en) * | 2011-04-02 | 2011-09-28 | 天津华迈燃气装备股份有限公司 | Double-coil-tube type electric-heating natural gas gasification heat exchanger |
| CN103542521A (en) * | 2013-10-30 | 2014-01-29 | 天津市化工设计院 | Double-coil type oil bath gaseous natural gas reheater |
-
1992
- 1992-02-10 JP JP2395792A patent/JPH05215297A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030064232A (en) * | 2002-01-23 | 2003-07-31 | 이토고키 가부시키가이샤 | Vaporizer |
| JP2009002396A (en) * | 2007-06-20 | 2009-01-08 | Kagla Vaportech Corp | Lp gas supply system |
| CN102182914A (en) * | 2011-04-02 | 2011-09-14 | 天津华迈燃气装备股份有限公司 | Single-coiled dual-use electric heating natural gas gasifying heat exchanger |
| CN102200218A (en) * | 2011-04-02 | 2011-09-28 | 天津华迈燃气装备股份有限公司 | Double-coil-tube type electric-heating natural gas gasification heat exchanger |
| CN103542521A (en) * | 2013-10-30 | 2014-01-29 | 天津市化工设计院 | Double-coil type oil bath gaseous natural gas reheater |
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