JP2002181293A - Liquefied gas supply device - Google Patents
Liquefied gas supply deviceInfo
- Publication number
- JP2002181293A JP2002181293A JP2000376503A JP2000376503A JP2002181293A JP 2002181293 A JP2002181293 A JP 2002181293A JP 2000376503 A JP2000376503 A JP 2000376503A JP 2000376503 A JP2000376503 A JP 2000376503A JP 2002181293 A JP2002181293 A JP 2002181293A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- liquefied gas
- container
- pressure
- gaseous
- 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.)
- Abandoned
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 63
- 239000003054 catalyst Substances 0.000 claims abstract description 44
- 239000000446 fuel Substances 0.000 claims abstract description 28
- 238000002485 combustion reaction Methods 0.000 claims abstract description 11
- 230000003647 oxidation Effects 0.000 claims abstract description 8
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract 2
- 238000007084 catalytic combustion reaction Methods 0.000 abstract description 8
- 238000009834 vaporization Methods 0.000 abstract description 3
- 230000008016 vaporization Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 199
- 239000012071 phase Substances 0.000 description 12
- 239000007791 liquid phase Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 241000264877 Hippospongia communis Species 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
(57)【要約】
【課題】 所定の圧力以上で気相の液化ガスを供給
することができる液化ガス供給装置を提供する。
【解決手段】 液化ガスが収容される容器３と、容器３
内の気相部に連通するガス管路５と、ガス管路５を通流
する気相の液化ガスの圧力を検知する圧力検知手段１５
と、圧力検知手段１５で検知した圧力が設定値以下のと
きに容器３内の液化ガスを加熱する加熱手段７とを有
し、加熱手段７は、酸化触媒を含む発熱部３５を有し、
発熱部３５は、容器３の外表面に設置され、燃料を触媒
燃焼することにより生じた燃焼熱で容器３内の液化ガス
を加熱する構成とする。このような構成とすれば、気相
の液化ガスの圧力が設定された圧力以下になった場合、
加熱手段７の発熱部３５の触媒燃焼によって容器３及び
容器３内の液化ガスが加熱されて気化量が増えるため、
供給される気相の液化ガスの圧力を上昇させることがで
き、所定の圧力以上で気相の液化ガスを供給することが
できる。
[PROBLEMS] To provide a liquefied gas supply device capable of supplying a gaseous liquefied gas at a predetermined pressure or higher. SOLUTION: A container 3 in which a liquefied gas is stored, and a container 3
Gas line 5 communicating with the gas phase portion in the inside, and pressure detecting means 15 for detecting the pressure of the gaseous liquefied gas flowing through the gas line 5
And a heating means 7 for heating the liquefied gas in the container 3 when the pressure detected by the pressure detection means 15 is equal to or less than a set value. The heating means 7 has a heat generating portion 35 including an oxidation catalyst,
The heat generating section 35 is provided on the outer surface of the container 3 and heats the liquefied gas in the container 3 by combustion heat generated by catalytic combustion of the fuel. With such a configuration, when the pressure of the gaseous liquefied gas falls below the set pressure,
Since the container 3 and the liquefied gas in the container 3 are heated by the catalytic combustion of the heat generating portion 35 of the heating means 7 and the amount of vaporization increases,
The pressure of the supplied gaseous liquefied gas can be increased, and the gaseous liquefied gas can be supplied at a predetermined pressure or higher.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、液化ガス供給装置
に係り、特に、気相の液化ガスを供給する液化ガス供給
装置に関する。The present invention relates to a liquefied gas supply device, and more particularly to a liquefied gas supply device for supplying a liquefied gas in a gas phase.
【０００２】[0002]
【従来の技術】従来の液化ガス供給装置は、液化ガスを
収容する容器とこの容器内の気相部に連通するガス管路
とを備えている。屋外または屋内に設置された容器に収
容された液相の液化ガスは、容器周囲の外気からの熱に
よって気化され、生じた気相の液化ガスは、気相部に連
通するガス管路を介して気相の液化ガスを使用する機器
や装置類へ供給される。2. Description of the Related Art A conventional liquefied gas supply device includes a container for containing a liquefied gas and a gas pipe communicating with a gas phase in the container. The liquid-phase liquefied gas contained in a container installed outdoors or indoors is vaporized by heat from the outside air around the container, and the generated gas-phase liquefied gas passes through a gas pipe communicating with the gas-phase part. And supplied to equipment and devices that use gaseous liquefied gas.
【０００３】[0003]
【発明が解決しようとする課題】このような従来の液化
ガス供給装置では、容器周囲の外気からの熱によって液
相の液化ガスを気化して気相の液化ガスを供給するた
め、所定の圧力以上の圧力を維持して気相の液化ガスを
供給することは難しい。In such a conventional liquefied gas supply apparatus, since a liquefied gas in the liquid phase is vaporized by the heat from the outside air around the container to supply the liquefied gas in the gas phase, a predetermined pressure is required. It is difficult to supply a gaseous liquefied gas while maintaining the above pressure.
【０００４】これに対し、ガス管路にコンプレッサなど
の昇圧機を設け、供給される気相の液化ガスを所定の圧
力以上に維持することが考えられる。ところが、気相の
液化ガスは、温度条件によっては、昇圧されると再液化
してしまう場合があるため好ましくない。On the other hand, it is conceivable to provide a pressure booster such as a compressor in a gas pipeline to maintain the supplied gaseous liquefied gas at a predetermined pressure or higher. However, the gaseous liquefied gas is not preferable because it may be reliquefied when the pressure is increased depending on the temperature conditions.
【０００５】本発明の課題は、所定の圧力以上で気相の
液化ガスを供給することにある。An object of the present invention is to supply a gaseous liquefied gas at a predetermined pressure or higher.
【０００６】[0006]
【課題を解決するための手段】本発明の液化ガス供給装
置は、液化ガスが収容される容器と、この容器内の気相
部に連通するガス管路と、前記容器３内または前記ガス
管路５に流入した前記気相の液化ガスの圧力または温度
を検知する検知手段と、この検知手段で検知した圧力ま
たは温度が設定値以下のときに容器内の液化ガスを加熱
する加熱手段とを有し、加熱手段は、酸化触媒を含む発
熱部を備え、この発熱部は、容器の外表面に設置され、
燃料を触媒燃焼することにより生じた燃焼熱で容器内の
液化ガスを加熱する構成とするこよにより上記課題を解
決する。According to the present invention, there is provided a liquefied gas supply device comprising: a container for containing a liquefied gas; a gas pipe communicating with a gas phase in the container; Detecting means for detecting the pressure or temperature of the gaseous liquefied gas flowing into the passage 5; and heating means for heating the liquefied gas in the container when the pressure or temperature detected by the detecting means is equal to or less than a set value. Has, the heating means includes a heat generating portion including an oxidation catalyst, the heat generating portion is installed on the outer surface of the container,
The object is achieved by heating the liquefied gas in the container with combustion heat generated by catalytic combustion of the fuel.
【０００７】このような構成とすれば、ガス管路を介し
て気相の液化ガスを利用する機器や装置類に供給される
気相の液化ガスの圧力または温度が検知手段に設定され
た値以下になったとき、加熱手段により容器及び容器内
の液相の液化ガスが加熱され、液化ガスの気化量が増え
るため、容器内の圧力を上昇させることができる。した
がって、所定の圧力以上で気相の液化ガスを供給するこ
とができる。[0007] With this configuration, the pressure or temperature of the gaseous liquefied gas supplied to the apparatus or equipment that uses the gaseous liquefied gas via the gas pipeline is set to a value set in the detecting means. When the temperature becomes below, the heating means heats the container and the liquefied gas in the liquid phase in the container, and the amount of vaporized liquefied gas increases, so that the pressure in the container can be increased. Therefore, a gaseous liquefied gas can be supplied at a predetermined pressure or higher.
【０００８】さらに、ガス管路を保温する保温手段を備
え、この保温手段は、酸化触媒を含む発熱部を有し、こ
の発熱部がガス管路の少なくとも一部を覆っている構成
とすれば、ガス管路内を通流する気相の液化ガスを保温
することができるため、ガス管路中で気相の液化ガスが
再液化し難くなるので好ましい。また、加熱手段の発熱
部及び保温手段の発熱部の少なくとも一方で触媒燃焼さ
れる燃料として容器内の気相の液化ガスを用いる構成と
すれば、発熱部での触媒燃焼のために別の燃料供給源を
必要としないので好ましい。[0008] Further, if the structure is provided with a heat retaining means for keeping the gas pipeline warm, the heat retaining means has a heat generating portion containing an oxidation catalyst, and the heat generating portion covers at least a part of the gas pipeline. Since the gaseous liquefied gas flowing through the gas pipeline can be kept warm, it is difficult to reliquefy the gaseous liquefied gas in the gas pipeline, which is preferable. In addition, if the gas-phase liquefied gas in the container is used as the fuel to be catalytically burned in at least one of the heat-generating portion of the heating means and the heat-generating portion of the heat retaining means, another fuel is used for the catalytic combustion in the heat-generating portion. This is preferred because no source is required.
【０００９】[0009]
【発明の実施の形態】以下、本発明を適用してなる液化
ガス供給装置の一実施形態について図１乃至図４を参照
して説明する。図１は、本発明を適用してなる液化ガス
供給装置の概略構成と動作を示す図である。図２は、図
１のII−II線からの矢視図である。図３は、容器用熱媒
発熱装置の概略構成を示すブロック図である。図４は、
ガス管路用熱媒発熱装置の概略構成を示すブロック図で
ある。なお、本実施形態では、マイクロガスタービンの
タービン駆動用燃料として気相の液化ガスを供給する場
合の構成を一例として説明する。マイクロガスタービン
は、従来のレシプロエンジン型の発電機などに比べ、発
電規模に対する設備の大きさがコンパクトであり、ま
た、燃焼排ガス温度が高温であるため、排熱からの熱回
収率を向上できる。このようなマイクロガスタービンで
は、通常の液化ガスの燃焼を行う機器類に比べ、高圧、
例えば０.３〜１.０ＭＰａの圧力を維持して液化ガスを
供給する必要がある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a liquefied gas supply apparatus according to the present invention will be described below with reference to FIGS. FIG. 1 is a diagram showing a schematic configuration and operation of a liquefied gas supply device to which the present invention is applied. FIG. 2 is an arrow view from the line II-II in FIG. FIG. 3 is a block diagram illustrating a schematic configuration of the heat medium heating device for a container. FIG.
It is a block diagram showing a schematic structure of a heating medium heating device for gas pipelines. In the present embodiment, a configuration in the case of supplying a gaseous liquefied gas as a turbine driving fuel for a micro gas turbine will be described as an example. Compared to conventional reciprocating engine-type generators, micro gas turbines are compact in size relative to the power generation scale, and have high combustion exhaust gas temperatures, which can improve the heat recovery rate from exhaust heat. . In such a micro gas turbine, the pressure and pressure are higher than those of equipment that burns ordinary liquefied gas.
For example, it is necessary to supply a liquefied gas while maintaining a pressure of 0.3 to 1.0 MPa.
【００１０】本実施形態の液化ガス供給装置１は、図１
及び２に示すように、液化ガス、例えば液化石油ガス
（ＬＰＧ）や液化天然ガス（ＬＮＧ）などを収容して貯
蔵するための容器３、容器３内の気相部４に連通するガ
ス管路５、容器３の底部から両側部を覆うように取り付
けられた加熱手段である容器用触媒発熱装置７、ガス管
路５を覆うように取り付けられた保温手段であるガス管
路用触媒発熱装置９、容器用触媒発熱装置７及びガス管
路用触媒発熱装置９に各々燃料となる気相の液化ガスを
供給する燃料供給管路１１、１３、ガス管路５内の圧力
検知手段である圧力センサ１５なで構成されている。容
器３は、屋外に設置されており、容器３の内部に収容さ
れて液相部６となる液相の液化ガスは、容器３が外気か
ら受けた熱により気化する。このため、容器３の上部の
気相部４には、気相の液化ガスが溜まった状態になって
いる。The liquefied gas supply device 1 of the present embodiment is shown in FIG.
And 2, a container 3 for containing and storing a liquefied gas, for example, liquefied petroleum gas (LPG) or liquefied natural gas (LNG), and a gas pipe communicating with a gas phase portion 4 in the container 3. 5, a container catalyst heating device 7 as a heating means attached to cover both sides from the bottom of the container 3, and a gas pipe catalyst heating device 9 as a heat retaining means attached to cover the gas pipe 5. , Fuel supply pipes 11 and 13 for supplying a gaseous liquefied gas serving as fuel to the catalyst heating device 7 for the container and the catalyst heating device 9 for the gas pipe, and pressure sensors as pressure detecting means in the gas pipe 5. It is composed of 15 components. The container 3 is installed outdoors, and the liquid-phase liquefied gas contained in the container 3 to become the liquid phase portion 6 is vaporized by the heat received by the container 3 from the outside air. For this reason, the gaseous liquefied gas is stored in the gaseous phase part 4 in the upper part of the container 3.
【００１１】ガス管路５は、図１に示すように、容器３
からの出口部分に気相の液化ガスの通流及び遮断を制御
する第１ガス弁１７が設けられている。ガス管路５は、
ガスの流れに対して第１ガス弁１７よりも下流側で燃料
供給管路１１と分岐している。ガス管路５の燃料供給管
路１１との分岐部分よりも下流側の部分に圧力検知器１
５が設けられている。ガス管路５は、圧力センサ１５が
設けられている部分よりも下流側で２分岐し、並列に配
管されたガス管路５ａ、５ｂとなっている。ガス管路５
ａには、上流側から第２ガス弁１９、第１圧力調整器２
１、そして第３ガス弁２３が順次設けられている。ガス
管路５ｂには、上流側から第４ガス弁２５、第２圧力調
整器２７、そして第５ガス弁２９が順次設けられてい
る。[0011] As shown in FIG.
A first gas valve 17 for controlling the flow and cutoff of a gaseous liquefied gas is provided at an outlet portion from the first port. Gas line 5
It branches off from the fuel supply line 11 downstream of the first gas valve 17 with respect to the gas flow. A pressure detector 1 is provided at a portion of the gas line 5 downstream of the branch from the fuel supply line 11.
5 are provided. The gas pipeline 5 is branched into two at the downstream side of the portion where the pressure sensor 15 is provided, and has gas pipelines 5a and 5b arranged in parallel. Gas line 5
a includes the second gas valve 19 and the first pressure regulator 2 from the upstream side.
1, and a third gas valve 23 are sequentially provided. A fourth gas valve 25, a second pressure regulator 27, and a fifth gas valve 29 are sequentially provided in the gas line 5b from the upstream side.
【００１２】ガス管路５ａとガス管路５ｂは、ガス管路
５ａの第３電磁弁２３とガス管路５ｂの第５電磁弁２９
との下流側で合流して再び１本のガス管路５となる。第
１ガス弁１７、圧力センサ１５、第２ガス弁１９、第１
圧力調整器２１、第３ガス弁２３、第４ガス弁２５、第
２圧力調整器２７、そして第５ガス弁２９などはガス管
路５、５ａ、５ｂなどと共に容器３上に設置されたケー
ス３１内に収容されている。但し、ケース３１を設けて
いない構成にすることもできる。ガス管路５のガス管路
５ａとガス管路５ｂとの合流部分よりも下流側のガス管
路５の端部は、マイクロガスタービン３３内の図示して
いない燃焼器に連結されている。The gas line 5a and the gas line 5b are connected to the third solenoid valve 23 of the gas line 5a and the fifth solenoid valve 29 of the gas line 5b.
At the downstream side of the above and becomes one gas pipeline 5 again. The first gas valve 17, the pressure sensor 15, the second gas valve 19, the first
A case in which the pressure regulator 21, the third gas valve 23, the fourth gas valve 25, the second pressure regulator 27, the fifth gas valve 29, etc. are installed on the container 3 together with the gas lines 5, 5a, 5b and the like. 31. However, a configuration without the case 31 may be adopted. The end of the gas line 5 downstream of the junction of the gas line 5 a and the gas line 5 b is connected to a combustor (not shown) in the micro gas turbine 33.
【００１３】容器用触媒発熱装置７は、図３に示すよう
に、酸化触媒を担持した担体などからなる発熱部３５、
発熱部３５にガス燃料を噴出する噴出ノズル３７、発熱
部３５に着火する着火部３９、噴出ノズル３７から噴出
されるガス燃料の温度を検知する温度センサ４１、圧力
センサ１５からのガス管路５内の気相の液化ガスの圧力
に応じて噴出ノズル３７からのガス燃料の噴出や停止や
着火部３９による発熱部３５への着火、さらにし、温度
センサ４１で検知した噴出ノズル３７から噴出されるガ
ス燃料の温度に応じて発熱部３５の燃焼状態つまり温度
などを制御する制御部４３、そして電源４５などで構成
されている。発熱部３５は、酸化触媒を担持させた担
体、例えば白金微粒子を担持させたガラス繊維などで構
成されている。なお、触媒燃焼の燃焼に用いられる触媒
として、例示した白金やパラジウムなどの貴金属の他
に、コバルト、鉄、マンガンなどの第１周期遷移金属な
ど様々な金属や金属化合物、また複合酸化物などを利用
できる。さらに、担体には、例示したガラス繊維の他、
熱耐性を有する材料からなる繊維、ペレット、ハニカ
ム、網状などの様々な材質及び形状の物が利用できる。As shown in FIG. 3, the catalyst heating device 7 for the container includes a heating section 35 made of a carrier or the like carrying an oxidation catalyst.
An ejection nozzle 37 for ejecting gaseous fuel to the heat generating portion 35, an ignition portion 39 for igniting the heat generating portion 35, a temperature sensor 41 for detecting the temperature of the gas fuel ejected from the ejection nozzle 37, and a gas line 5 from the pressure sensor 15. In accordance with the pressure of the gaseous liquefied gas inside, the gas fuel is ejected or stopped from the ejection nozzle 37, the ignition unit 39 ignites the heat generating unit 35, and the fuel is ejected from the ejection nozzle 37 detected by the temperature sensor 41. The control unit 43 controls the combustion state, that is, the temperature, of the heat generating unit 35 according to the temperature of the gaseous fuel. The heat generating portion 35 is made of a carrier supporting an oxidation catalyst, for example, a glass fiber supporting platinum fine particles. In addition, as a catalyst used for the combustion of catalytic combustion, in addition to the noble metals such as platinum and palladium exemplified above, various metals and metal compounds such as first-phase transition metals such as cobalt, iron and manganese, and composite oxides are also used. Available. Further, in addition to the glass fiber exemplified in the carrier,
Various materials and shapes such as fibers, pellets, honeycombs, and nets made of a material having heat resistance can be used.
【００１４】このような発熱部３５が、図１に示すよう
に、容器３の底部から両側部を覆うように容器３に取り
付けられており、噴出ノズル３７、着火部３９、温度セ
ンサ４１、制御部４３、そして電源４５などを有する容
器用触媒発熱装置７の本体部分７ａは容器３の底部に取
り付けられている。なお、容器用触媒発熱装置７の制御
部４３と、圧力センサ１５、容器用触媒発熱装置７の噴
出ノズル３７、着火部３９、温度センサ４１、電源４５
などは電気的に接続されている。また、容器用触媒発熱
装置７は、ガス燃料として燃料供給管路１１を介して供
給される気相の液化ガスを用いている。燃料供給管路１
１には、気相の液化ガスの容器用触媒発熱装置７への供
給と遮断を制御する燃料供給制御弁４７が設けられてい
る。As shown in FIG. 1, such a heat generating portion 35 is attached to the container 3 so as to cover both sides from the bottom of the container 3, and a jet nozzle 37, an ignition portion 39, a temperature sensor 41, The main body 7 a of the container catalyst heating device 7 having the portion 43 and the power supply 45 is attached to the bottom of the container 3. The control unit 43 of the container catalyst heating device 7, the pressure sensor 15, the ejection nozzle 37, the ignition unit 39, the temperature sensor 41, and the power supply 45 of the container catalyst heating device 7 are provided.
Are electrically connected. The container catalyst heating device 7 uses a gaseous liquefied gas supplied via a fuel supply pipe 11 as a gas fuel. Fuel supply line 1
1 is provided with a fuel supply control valve 47 for controlling the supply and cutoff of the gaseous liquefied gas to the container catalyst heating device 7.
【００１５】ガス管路用触媒発熱装置９も容器用触媒発
熱装置７とほぼ同じ構成であるが、図４に示すように、
制御部４３は、圧力センサではなく、外気温度センサ４
６に電気的に接続されている点で異なっている。そし
て、ガス管路用触媒発熱装置９の発熱部３５は、図１に
示すように、ガス管路５のケース３１とマイクロガスタ
ービン３３との間の部分を覆うように取り付けられてお
り、噴出ノズル３７、着火部３９、温度センサ４１、制
御部４３、そして電源４５などを有するガス管路用触媒
発熱装置９の本体部分９ａは、容器３上に設置されたケ
ース３１のガス管路５が挿通されている外側面に取り付
けられている。また、ガス管路用触媒発熱装置９は、ガ
ス燃料として燃料供給管路１３を介して供給される気相
の液化ガスを用いている。燃料供給管路１３は、燃料供
給管路１１の燃料供給制御弁４７よりも上流側の部分で
燃料供給管路１１から分岐しており、燃料供給管路１３
には、気相の液化ガスのガス管路用触媒発熱装置９への
供給と遮断を制御する燃料供給制御弁４９が設けられて
いる。The catalyst heating device 9 for the gas pipeline has substantially the same configuration as the catalyst heating device 7 for the container, but as shown in FIG.
The control unit 43 is not a pressure sensor but an outside air temperature sensor 4.
6 in that it is electrically connected. As shown in FIG. 1, the heat generating portion 35 of the gas line catalyst heat generating device 9 is attached so as to cover a portion of the gas line 5 between the case 31 and the micro gas turbine 33. The main body portion 9a of the gas line catalyst heating device 9 having the nozzle 37, the ignition portion 39, the temperature sensor 41, the control portion 43, the power supply 45, and the like is formed by the gas line 5 of the case 31 installed on the container 3. It is attached to the outer surface that is inserted. Further, the gas line catalyst heating device 9 uses a gaseous liquefied gas supplied through a fuel supply line 13 as a gas fuel. The fuel supply line 13 is branched from the fuel supply line 11 at a portion of the fuel supply line 11 upstream of the fuel supply control valve 47.
Is provided with a fuel supply control valve 49 for controlling the supply and cutoff of the gaseous liquefied gas to the gas line catalyst heating device 9.
【００１６】このような構成の液化ガス供給装置１の動
作と本発明の特徴部について説明する。すなわち、容器
３内の気相の液化ガスが、ガス管路５を介してマイクロ
ガスタービン３３に供給されるとき、圧力センサ１５で
検知した気相の液化ガスの圧力が設定値以下の場合に
は、容器用触媒発熱装置７は、発熱部３５に噴出ノズル
３７から気相の液化ガスを供給すると共に、着火部３９
により発熱部３５に着火する。酸化触媒におよる触媒燃
焼を行う発熱部３５では、気相の液化ガスのみを燃焼さ
せた場合に比べて、燃焼の持続時間が長く、さらに、低
温で燃焼が行われる。このように、容器用触媒発熱装置
７により容器３及び容器３内の液化ガスが加熱され、液
相の液化ガスが気化する。容器３内の温度が上昇するた
め、容器３内の飽和蒸気圧が上昇し、気化した気相の液
化ガスにより容器３内の気相の液化ガスの圧力が上昇す
る。The operation of the liquefied gas supply device 1 having such a configuration and the features of the present invention will be described. That is, when the gaseous liquefied gas in the container 3 is supplied to the micro gas turbine 33 via the gas line 5, when the pressure of the gaseous liquefied gas detected by the pressure sensor 15 is equal to or less than the set value, The catalyst heating device 7 for the container supplies a gaseous liquefied gas from the ejection nozzle 37 to the heating portion 35 and the ignition portion 39
As a result, the heating section 35 is ignited. In the heat generating section 35 that performs catalytic combustion on the oxidation catalyst, the duration of the combustion is longer than that in the case where only the gaseous liquefied gas is burned, and the combustion is performed at a low temperature. As described above, the container 3 and the liquefied gas in the container 3 are heated by the container catalyst heating device 7, and the liquefied gas in the liquid phase is vaporized. Since the temperature in the container 3 increases, the saturated vapor pressure in the container 3 increases, and the pressure of the gaseous liquefied gas in the container 3 increases due to the vaporized gaseous liquefied gas.
【００１７】一方、圧力センサ１５で検知した気相の液
化ガスの圧力が設定された圧力よりも高くなった場合に
は、容器用触媒発熱装置７は、発熱部３５への噴射ノズ
ル３７からの気相の液化ガスの供給を遮断する。これに
より、発熱部３５での燃焼は気相の液化ガスが燃え尽き
た時点で終わり、容器３の加熱は行われなくなり、容器
３内の気相の液化ガスの圧力上昇が抑えられる。なお、
圧力センサ１５の設定圧力は、マイクロガスタービン３
３が要求する圧力よりも高く設定されており、容器３内
の圧力は、容器用触媒発熱装置７により、マイクロガス
タービン３３が要求する圧力よりも高く保持される。こ
のマイクロガスタービン３３が要求する圧力よりも高い
圧力の気相の液化ガスは、ガス管路５の分岐されて並列
に配管された部分、すなわちガス管路５ａ、５ｂに設け
られた第１及び第２圧力調整器２１、２７で、マイクロ
ガスタービン３３が要求する圧力に調整され、マイクロ
ガスタービン３３に供給される。On the other hand, when the pressure of the gaseous liquefied gas detected by the pressure sensor 15 becomes higher than the set pressure, the catalyst heating device 7 for the container starts the injection from the injection nozzle 37 to the heating portion 35. The supply of gaseous liquefied gas is shut off. As a result, the combustion in the heat generating portion 35 ends when the gaseous liquefied gas has burned out, and the heating of the container 3 is not performed, so that the pressure rise of the gaseous liquefied gas in the container 3 is suppressed. In addition,
The set pressure of the pressure sensor 15 is the micro gas turbine 3
The pressure inside the container 3 is set higher than the pressure required by the micro gas turbine 33 by the container catalyst heating device 7. The gaseous liquefied gas having a pressure higher than the pressure required by the micro gas turbine 33 is supplied to the first and second portions provided in the branched and parallel pipes of the gas pipe 5, ie, the gas pipes 5a and 5b. The pressure is adjusted to the pressure required by the micro gas turbine 33 by the second pressure regulators 21 and 27 and supplied to the micro gas turbine 33.
【００１８】マイクロガスタービン３３が要求する圧力
に調整された気相の液化ガスは、ガス管路５を通流して
マイクロガスタービン３３に供給されるが、ガス管路５
の長さによっては、ガス管路５を通流している間に気相
の液化ガスの温度が低下し、気相の液化ガスが再液化し
てしまう場合がある。このため、外気温度センサ４６で
検知した外気温度が設定値以下の場合には、ガス管路用
触媒発熱装置９は、発熱部３５に噴出ノズル３７から気
相の液化ガスを供給すると共に、着火部３９により発熱
部３５に着火する。一方、外気温度センサ４６で検知し
た外気温度が設定された温度よりも高くなった場合に
は、容器用触媒発熱装置７は、発熱部３５への噴射ノズ
ル３７からの気相の液化ガスの供給を遮断する。これに
より、外気温度が所定の温度より低い場合には、ガス管
路用触媒発熱装置９によってガス管路５が加熱され、ガ
ス管路５内の温度がガス管路５内を通流する気相の液化
ガスが再液化しない温度に保持される。なお、外気温度
センサ４６の設定温度は、マイクロガスタービン３３が
要求する圧力よりも高い液化ガスの飽和蒸気圧になるよ
うな温度に設定されている。The gaseous liquefied gas adjusted to the pressure required by the micro gas turbine 33 flows through the gas line 5 and is supplied to the micro gas turbine 33.
Depending on the length, the temperature of the gaseous liquefied gas may decrease while flowing through the gas pipeline 5, and the gaseous liquefied gas may be reliquefied. Therefore, when the outside air temperature detected by the outside air temperature sensor 46 is equal to or lower than the set value, the gas line catalyst heating device 9 supplies the heating portion 35 with the gaseous liquefied gas from the ejection nozzle 37 and ignites. The heat generation part 35 is ignited by the part 39. On the other hand, when the outside air temperature detected by the outside air temperature sensor 46 becomes higher than the set temperature, the container catalyst heating device 7 supplies the gaseous liquefied gas from the injection nozzle 37 to the heating portion 35. Cut off. Thereby, when the outside air temperature is lower than the predetermined temperature, the gas pipeline 5 is heated by the catalyst heating device 9 for the gas pipeline, and the temperature in the gas pipeline 5 is reduced by the air flowing through the gas pipeline 5. The temperature at which the liquefied gas of the phase does not reliquefy is maintained. The set temperature of the outside air temperature sensor 46 is set to a temperature at which the saturated vapor pressure of the liquefied gas becomes higher than the pressure required by the micro gas turbine 33.
【００１９】このように、本実施形態の液化ガス蒸発装
置１では、圧力センサ１５によりガス管路５を通流する
気相の液化ガスの圧力が設定値以下であることを検知し
た場合、容器用触媒発熱装置７が発熱部３５で触媒燃焼
を行い、この発熱部３５の燃焼熱により容器３及び容器
３内の液化ガスを加熱する。これにより液化ガスの飽和
蒸気圧が上昇すると共に液相の液化ガスの気化量が増え
ることにより、ガス管路５を通流する気相の液化ガスの
圧力を上昇させることができる。したがって、所定の圧
力以上で気相の液化ガスを供給することができる。As described above, in the liquefied gas evaporator 1 of this embodiment, when the pressure sensor 15 detects that the pressure of the gaseous liquefied gas flowing through the gas line 5 is equal to or lower than the set value, The catalyst heat generating device 7 performs catalytic combustion in the heat generating portion 35, and heats the container 3 and the liquefied gas in the container 3 by the combustion heat of the heat generating portion 35. As a result, the saturated vapor pressure of the liquefied gas increases and the amount of vaporization of the liquefied gas in the liquid phase increases, so that the pressure of the gaseous liquefied gas flowing through the gas pipeline 5 can be increased. Therefore, a gaseous liquefied gas can be supplied at a predetermined pressure or higher.
【００２０】さらに、ガス管路５を通流する気相の液化
ガスの圧力が設定値よりも高い場合、容器用触媒発熱装
置７が発熱部３５による容器３の加熱を停止して気化量
を減らすことにより、ガス管路５を通流する気相の液化
ガスの圧力の上昇を抑え、所定の圧力範囲内の気相の液
化ガスを供給することもできる。加えて、本実施形態の
液化ガス蒸発装置１では、ガス管路５の第４及び第５ガ
ス弁２３、２９、つまりケース３１よりも下流側の部分
は、ガス管路用触媒発熱装置９の発熱部３５で覆われて
いる。このため、ガス管路５内の温度は、気相の液化ガ
スが再液化しない温度に保温される。したがって、例え
ば容器３とマイクロガスタービン３３の設置位置が離れ
ているなど、ガス管路５内を通流している間にの気相の
液化ガスの温度が低下する可能性がある場合でも、ガス
管路５内の気相の液化ガスの温度低下を防ぐことがで
き、再液化を防ぐことができる。ただし、ガス管路５内
を通流している間にの気相の液化ガスの温度が低下する
可能性がない場合には、ガス管路用触媒発熱装置９を設
けなくてもよい。Further, when the pressure of the gaseous liquefied gas flowing through the gas line 5 is higher than the set value, the catalyst heating device 7 for the container stops the heating of the container 3 by the heating portion 35 to reduce the amount of vaporization. By reducing the pressure, the rise of the pressure of the gaseous liquefied gas flowing through the gas pipeline 5 can be suppressed, and the gaseous liquefied gas within a predetermined pressure range can be supplied. In addition, in the liquefied gas evaporator 1 of the present embodiment, the fourth and fifth gas valves 23 and 29 of the gas line 5, that is, the portion downstream of the case 31 is the gas line catalyst heating device 9. It is covered with the heat generating part 35. For this reason, the temperature in the gas pipeline 5 is maintained at a temperature at which the gaseous liquefied gas does not reliquefy. Therefore, even when the temperature of the gaseous liquefied gas during the flow through the gas pipeline 5 is likely to decrease, for example, when the installation position of the micro gas turbine 33 is separated from the container 3, The temperature of the gaseous liquefied gas in the pipe 5 can be prevented from lowering, and re-liquefaction can be prevented. However, when there is no possibility that the temperature of the gaseous liquefied gas is reduced while flowing through the gas pipeline 5, the catalyst heating device 9 for the gas pipeline may not be provided.
【００２１】さらに、本実施形態は、従来の容器の外面
に容器用触媒発熱装置７を設置したものであり、専用の
容器などを準備する必要がない。また、本実施形態は、
容器３のような、円筒状の容器を横向きに設置したよう
な大容量の容器に限らず、様々な容器、例えば設置面積
などに対する制限が少ない小型のシリンダ型容器にも適
用できる。加えて、本実施形態では、容器用触媒発熱装
置７とガス管路用触媒発熱装置９は、発熱部３５での触
媒燃焼の燃料として容器３内の気相の液化ガスを用いる
ため、別に容器用触媒発熱装置７とガス管路用触媒発熱
装置９の燃焼用のエネルギー源を用意する必要がない。Further, in this embodiment, the catalyst heating device 7 for the container is installed on the outer surface of the conventional container, and there is no need to prepare a dedicated container or the like. In addition, the present embodiment
The present invention can be applied not only to a large-capacity container in which a cylindrical container such as the container 3 is installed in a horizontal direction, but also to various containers, for example, a small-sized cylinder-type container in which there is little restriction on an installation area. In addition, in this embodiment, the catalyst heating device 7 for the container and the catalyst heating device 9 for the gas pipeline use the gaseous liquefied gas in the container 3 as the fuel for the catalytic combustion in the heating section 35. It is not necessary to prepare an energy source for combustion of the catalyst heat generating device 7 and the gas line catalyst heat generating device 9.
【００２２】また、本実施形態では、圧力センサ１５を
ガス管路５に設けているが、圧力検知手段は、ガス管路
５内を通流する気相の液化ガスの圧力を反映する箇所、
例えば容器３の気相部４などの圧力を検知する構成とす
ることもできる。さらに、本実施形態では、検知手段と
して圧力センサ１５を設けているが、圧力センサ１５な
どに代えて、容器３内やガス管路５内に流入する気相の
液化ガスの温度を検知する温度センサなどの検知手段を
設け、この温度検知手段で検知した温度が設定値以下の
ときに、容器３を加熱する構成にすることもできる。こ
のとき、液化ガスの種類によって温度と圧力の関係が決
まる。Further, in the present embodiment, the pressure sensor 15 is provided in the gas line 5, but the pressure detecting means reflects the pressure of the gaseous liquefied gas flowing through the gas line 5,
For example, it is also possible to adopt a configuration in which the pressure of the gas phase part 4 of the container 3 is detected. Further, in the present embodiment, the pressure sensor 15 is provided as the detecting means. However, instead of the pressure sensor 15 or the like, a temperature for detecting the temperature of the gaseous liquefied gas flowing into the container 3 or the gas pipe 5 is used. It is also possible to provide a detecting means such as a sensor and heat the container 3 when the temperature detected by the temperature detecting means is equal to or lower than a set value. At this time, the relationship between temperature and pressure is determined by the type of liquefied gas.
【００２３】また、ガス管路用触媒発熱装置９では、外
気温度センサに代えて、ガス管路５の温度を検知する温
度検知手段を用いることもできる。また、本発明は、本
実施形態の構成のに限らず、様々な構成の液化ガス供給
装置に適用することができ、さらに、マイクロガスター
ビンに限らず、所定の圧以上の気相の液化ガスを利用す
る機器や装置類に気相の液化ガスを供給する様々な構成
の液化ガス供給装置に適用することができる。Further, in the gas line catalyst heating device 9, a temperature detecting means for detecting the temperature of the gas line 5 can be used instead of the outside air temperature sensor. In addition, the present invention is not limited to the configuration of the present embodiment, and can be applied to liquefied gas supply devices of various configurations. The present invention can be applied to various types of liquefied gas supply devices that supply a gaseous liquefied gas to equipment and devices that use liquefied gas.
【００２４】[0024]
【発明の効果】本発明によれば、所定の圧力以上で気相
の液化ガスを供給することができる。According to the present invention, it is possible to supply a gaseous liquefied gas at a predetermined pressure or higher.
【図１】本発明を適用してなる液化ガス供給装置の一実
施形態の概略構成と動作を示す図である。FIG. 1 is a diagram showing a schematic configuration and operation of an embodiment of a liquefied gas supply device to which the present invention is applied.
【図２】図１のII−II線からの矢視図である。FIG. 2 is a view from the line II-II in FIG.
【図３】容器用熱媒発熱装置の概略構成を示すブロック
図である。FIG. 3 is a block diagram illustrating a schematic configuration of a heat medium heating device for a container.
【図４】ガス管路用熱媒発熱装置の概略構成を示すブロ
ック図である。FIG. 4 is a block diagram showing a schematic configuration of a heat medium heating device for a gas pipeline.
１ 液化ガス蒸発装置 ３ 容器 ４ 気相部 ５ ガス管路 ６ 液相部 ７ 容器用触媒発熱装置 ９ ガス管路用触媒発熱装置 ３５ 発熱部 DESCRIPTION OF SYMBOLS 1 Liquefied gas evaporator 3 Container 4 Gas phase part 5 Gas pipeline 6 Liquid phase part 7 Container catalyst heating unit 9 Gas pipeline catalyst heating unit 35 Heating unit
Claims (3)
の気相部に連通するガス管路と、前記容器内または前記
ガス管路に流入した前記気相の液化ガスの圧力または温
度を検知する検知手段と、該検知手段で検知した圧力ま
たは温度が設定値以下のときに前記容器内の液化ガスを
加熱する加熱手段とを有し、前記加熱手段は、酸化触媒
を含む発熱部を備え、該発熱部は、前記容器の外表面に
設置され、燃料を触媒燃焼することにより生じた燃焼熱
で前記容器内の液化ガスを加熱してなる液化ガス蒸発装
置。1. A container accommodating a liquefied gas, a gas line communicating with a gas phase portion in the container, and a pressure or temperature of the gaseous liquefied gas flowing into the container or into the gas line. And a heating means for heating the liquefied gas in the container when the pressure or temperature detected by the detection means is equal to or less than a set value, wherein the heating means includes a heating unit including an oxidation catalyst. A liquefied gas evaporator, wherein the heat generating portion is provided on an outer surface of the container, and heats a liquefied gas in the container with combustion heat generated by catalytically burning fuel.
え、該保温手段は、酸化触媒を含む発熱部を有し、該発
熱部が前記ガス管路の少なくとも一部を覆っていること
を特徴とする請求項１に記載の液化ガス供給装置。2. A heat retaining means for keeping the gas pipeline warm, the heat retaining means having a heat generating portion including an oxidation catalyst, and wherein the heat generating portion covers at least a part of the gas pipeline. The liquefied gas supply device according to claim 1, wherein:
の発熱部の少なくとも一方で触媒燃焼される燃料として
前記容器内の気相の液化ガスを用いてなることを特徴と
する請求項１または２に記載の液化ガス供給装置。3. A gas-phase liquefied gas in the container is used as a fuel to be catalytically burned in at least one of the heat generating portion of the heating means and the heat generating portion of the heat retaining means. 3. The liquefied gas supply device according to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000376503A JP2002181293A (en) | 2000-12-11 | 2000-12-11 | Liquefied gas supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000376503A JP2002181293A (en) | 2000-12-11 | 2000-12-11 | Liquefied gas supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002181293A true JP2002181293A (en) | 2002-06-26 |
Family
ID=18845351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000376503A Abandoned JP2002181293A (en) | 2000-12-11 | 2000-12-11 | Liquefied gas supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002181293A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110139762A1 (en) * | 2009-12-10 | 2011-06-16 | Pearl Point Holdings Ltd. | Above-ground storage tanks with internal heat source |
| CN102182913A (en) * | 2011-02-25 | 2011-09-14 | 聚灿光电科技(苏州)有限公司 | Heater |
| US20110311928A1 (en) * | 2010-06-16 | 2011-12-22 | Algas-Sdi International Llc | Heater for liquefied petroleum gas storage tank |
| JP2013520365A (en) * | 2010-02-24 | 2013-06-06 | 三星重工業株式会社 | Floating LNG filling station |
| US10018305B2 (en) | 2013-01-25 | 2018-07-10 | Algas-Sdi International Llc | Heater with replaceable cartridge |
-
2000
- 2000-12-11 JP JP2000376503A patent/JP2002181293A/en not_active Abandoned
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110139762A1 (en) * | 2009-12-10 | 2011-06-16 | Pearl Point Holdings Ltd. | Above-ground storage tanks with internal heat source |
| US20150247097A1 (en) * | 2009-12-10 | 2015-09-03 | Envirovault Corporation | Above-ground storage tanks with internal heat source and methods and systems for processing produced fluids |
| JP2013520365A (en) * | 2010-02-24 | 2013-06-06 | 三星重工業株式会社 | Floating LNG filling station |
| US20110311928A1 (en) * | 2010-06-16 | 2011-12-22 | Algas-Sdi International Llc | Heater for liquefied petroleum gas storage tank |
| WO2011159887A1 (en) * | 2010-06-16 | 2011-12-22 | Algas-Sdi International Llc | Heater for liquefied petroleum gas storage tank |
| US8951041B2 (en) | 2010-06-16 | 2015-02-10 | Algas-Sdi International Llc | Heater for liquefied petroleum gas storage tank |
| US20150260394A1 (en) * | 2010-06-16 | 2015-09-17 | Algas-Sdi International Llc | Heater for liquefied petroleum gas storage tank |
| US9523498B2 (en) * | 2010-06-16 | 2016-12-20 | Algas-Sdi International Llc | Heater for liquefied petroleum gas storage tank |
| CN102182913A (en) * | 2011-02-25 | 2011-09-14 | 聚灿光电科技(苏州)有限公司 | Heater |
| US10018305B2 (en) | 2013-01-25 | 2018-07-10 | Algas-Sdi International Llc | Heater with replaceable cartridge |
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