JP2002372225A - Liquefied gas vaporizing apparatus - Google Patents
Liquefied gas vaporizing apparatusInfo
- Publication number
- JP2002372225A JP2002372225A JP2001179704A JP2001179704A JP2002372225A JP 2002372225 A JP2002372225 A JP 2002372225A JP 2001179704 A JP2001179704 A JP 2001179704A JP 2001179704 A JP2001179704 A JP 2001179704A JP 2002372225 A JP2002372225 A JP 2002372225A
- Authority
- JP
- Japan
- Prior art keywords
- evaporator
- liquefied gas
- storage tank
- bulk storage
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、バルク貯槽に貯留
しているプロパンガスなどの液化ガスを気化させて、給
湯機や暖房機等のガス消費機器に供給する液化ガス気化
装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquefied gas vaporizer for vaporizing a liquefied gas such as propane gas stored in a bulk storage tank and supplying it to a gas consuming device such as a water heater or a heater. .
【０００２】[0002]
【従来の技術】この種の液化ガス気化装置として、従来
は、特開平１０−２６２９８号公報に記載されているよ
うな構成のものが使用されている。図８は、前記公報に
記載された従来の液化ガス気化装置の構成を示す説明図
である。2. Description of the Related Art As a liquefied gas vaporizer of this type, a device as described in JP-A-10-26298 has been conventionally used. FIG. 8 is an explanatory diagram showing a configuration of a conventional liquefied gas vaporizer described in the above publication.
【０００３】１は液化ガス２を収容しているバルク貯槽
で、熱交換器３を内部に配置した構成となっている。熱
交換器３は、バルク貯槽１の外部に配置している電気ヒ
ータ等の発熱手段４の発熱によって熱媒体を加熱し、加
熱した熱媒体をポンプ５によって熱交換器３に搬送し
て、バルク貯槽１内の液相の液化ガス２を加熱気化させ
ている。[0005] Reference numeral 1 denotes a bulk storage tank containing a liquefied gas 2, which has a heat exchanger 3 disposed therein. The heat exchanger 3 heats the heat medium by the heat generated by the heat generating means 4 such as an electric heater disposed outside the bulk storage tank 1, and transports the heated heat medium to the heat exchanger 3 by the pump 5. The liquid-phase liquefied gas 2 in the storage tank 1 is heated and vaporized.
【０００４】また制御部８は、バルク貯槽１に設けてい
る温度センサー６と、圧力センサー７が検知した値が所
定値以上になった時に熱交換器３への熱媒体の搬送を停
止する。すなわち、温度センサー６が検知する液化ガス
２の温度と、圧力センサー７が検知するバルク貯槽１内
の気相部の圧力が異常等によって所定値よりも高くなっ
たときには、熱交換器３への熱媒体の搬送を停止するこ
とによって安全を確保しているものである。The controller 8 stops the transfer of the heat medium to the heat exchanger 3 when the values detected by the temperature sensor 6 and the pressure sensor 7 provided in the bulk storage tank 1 are equal to or more than predetermined values. That is, when the temperature of the liquefied gas 2 detected by the temperature sensor 6 and the pressure of the gas phase in the bulk storage tank 1 detected by the pressure sensor 7 become higher than a predetermined value due to an abnormality or the like, the flow to the heat exchanger 3 is stopped. Safety is ensured by stopping the transfer of the heat medium.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、前記従
来の構成では、電力消費が大きく効率が悪いという課題
を有している。However, the conventional configuration has a problem that power consumption is large and efficiency is low.
【０００６】[0006]
【課題を解決するための手段】本発明は、液化ガスを貯
留するバルク貯槽と、前記バルク貯槽内の液相の液化ガ
ス部分から配管接続される減圧手段と、前記減圧手段を
入口側に接続して外気熱で加熱する第１蒸発器と、発熱
手段を有する液溜容器の入口側に前記第１蒸発器を接続
し、出口をガス使用機器に接続する第２蒸発器と、前記
第１蒸発器と前記第２蒸発器の運転を制御する制御装置
とを構成要件として備えた液化ガス気化装置としてい
る。According to the present invention, there is provided a bulk storage tank for storing a liquefied gas, a decompression means connected to a pipe from a liquefied gas portion of a liquid phase in the bulk storage tank, and the decompression means connected to an inlet side. A first evaporator for heating with external heat, a second evaporator for connecting the first evaporator to an inlet side of a liquid reservoir having a heating means, and an outlet for connecting to a gas-using device, A liquefied gas vaporizer includes, as constituent elements, an evaporator and a control device for controlling the operation of the second evaporator.
【０００７】バルク貯槽内の液化ガスを減圧手段で減圧
し、外気温度より低くした状態で第１蒸発器に送り、第
１蒸発器で外気熱を用いて蒸発気化させるとともに、発
熱手段を有する第２蒸発器を使用して、第１蒸発器が気
化しきれなかった液化ガスを気化させるようにして、液
化ガスの気化のために必要な電力を著しく低減でき、ま
た、外気温度が低い状況でも安定して安全に燃料ガスを
供給することができる。[0007] The liquefied gas in the bulk storage tank is decompressed by the decompression means and sent to the first evaporator in a state of being lower than the outside air temperature. By using the two evaporators, the first evaporator vaporizes the liquefied gas that could not be completely vaporized, so that the electric power required for the vaporization of the liquefied gas can be significantly reduced. Fuel gas can be supplied stably and safely.
【０００８】[0008]
【発明の実施の形態】請求項１に記載した発明は、液化
ガスを貯留するバルク貯槽と、前記バルク貯槽内の液相
の液化ガス部分から配管接続される減圧手段と、前記減
圧手段を入口側に接続して外気熱で加熱する第１蒸発器
と、発熱手段を有する液溜容器の入口側に前記第１蒸発
器を接続し、出口をガス使用機器に接続する第２蒸発器
と、前記第１蒸発器と前記第２蒸発器の運転を制御する
制御装置とを構成要件として備えた液化ガス気化装置と
している。DETAILED DESCRIPTION OF THE INVENTION The invention described in claim 1 is a bulk storage tank for storing a liquefied gas, a decompression means connected to a pipe from a liquefied gas portion of a liquid phase in the bulk storage tank, and an inlet connected to the decompression means. A first evaporator connected to the side and heated by external heat, a second evaporator connecting the first evaporator to an inlet side of a liquid storage container having a heating means, and an outlet connected to a gas-using device, A liquefied gas vaporizer includes, as constituent elements, a control device for controlling the operation of the first evaporator and the second evaporator.
【０００９】バルク貯槽内の液化ガスを減圧手段で減圧
し、外気温度より低くした状態で第１蒸発器に送り、第
１蒸発器で外気熱を用いて蒸発気化させるとともに、発
熱手段を有する第２蒸発器を使用して、第１蒸発器が気
化しきれなかった液化ガスを気化させるようにして、液
化ガスの気化のために必要な電力を著しく低減でき、ま
た、外気温度が低い状況でも安定して安全に燃料ガスを
供給することができる。The liquefied gas in the bulk storage tank is decompressed by the decompression means and sent to the first evaporator at a temperature lower than the outside air temperature, and the first evaporator evaporates and vaporizes using the outside air heat and has a heat generation means. By using the two evaporators, the first evaporator vaporizes the liquefied gas that could not be completely vaporized, so that the electric power required for the vaporization of the liquefied gas can be significantly reduced. Fuel gas can be supplied stably and safely.
【００１０】請求項２に記載した発明は、請求項１に記
載した構成に加え、第２蒸発器は、第２蒸発器内の液相
の液化ガスの量を検知する液量検知手段と、前記液量検
知手段の検知量に応じて開閉する出口開閉弁とを備えた
構成の液化ガス気化装置としている。According to a second aspect of the present invention, in addition to the configuration of the first aspect, the second evaporator has a liquid amount detecting means for detecting an amount of a liquefied gas in a liquid phase in the second evaporator; A liquefied gas vaporizer configured to include an outlet opening / closing valve that opens and closes according to the detection amount of the liquid amount detection unit.
【００１１】液量検知手段と、液量検知手段の検出値に
応じて開閉する出口開閉弁とを備えたことによって、異
常状態によって液相の液化ガスが第２蒸発器内に溜まっ
たような場合に、出口開閉弁が回路を閉止すように作動
して、液相の液化ガスが直接にガス消費機器へ流入する
ことを防止できる。By providing the liquid amount detecting means and the outlet opening / closing valve which opens and closes according to the detection value of the liquid amount detecting means, it is possible to prevent the liquefied gas in the liquid phase from accumulating in the second evaporator due to an abnormal state. In this case, the outlet on-off valve operates so as to close the circuit, so that the liquefied gas in the liquid phase can be prevented from directly flowing into the gas consuming device.
【００１２】請求項３に記載した発明は、請求項１また
は２に記載した構成に加え、第２蒸発器は、底部にバル
ク貯槽と接続する開閉弁を有する液戻り管を備えた構成
の液化ガス気化装置としている。According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the second evaporator is provided with a liquid return pipe having an on-off valve connected to a bulk storage tank at the bottom. It is a gas vaporizer.
【００１３】第２蒸発器の底部とバルク貯槽とを接続す
る開閉弁を有する液戻り管を設けたことによって、第２
蒸発器に溜まった未気化状態の液化ガスをバルク貯槽に
戻すことができる。また、バルク貯槽内の圧力が十分に
高い場合は、バルク貯槽内の気相部の液化ガスを液戻り
管を使用して第２蒸発器から直接ガス消費機器へ供給す
ることができる。さらにバルク貯槽内の圧力が異常上昇
した時は、第１蒸発器で液化ガスを冷却して、液戻し管
からバルク貯槽に低温の液化ガスを戻すようにして、バ
ルク貯槽内を冷却して圧力を下げることができる。By providing a liquid return pipe having an on-off valve for connecting the bottom of the second evaporator and the bulk storage tank,
The liquefied gas in the unvaporized state accumulated in the evaporator can be returned to the bulk storage tank. When the pressure in the bulk storage tank is sufficiently high, the liquefied gas in the gas phase in the bulk storage tank can be directly supplied from the second evaporator to the gas consuming device using the liquid return pipe. Further, when the pressure in the bulk storage tank rises abnormally, the liquefied gas is cooled by the first evaporator, and the low-temperature liquefied gas is returned from the liquid return pipe to the bulk storage tank. Can be lowered.
【００１４】請求項４に記載した発明は、請求項１から
３のいずれか１項に記載した構成に加え、第２蒸発器は
液化ガスの圧力を検知する圧力検知手段を有し、バルク
貯槽は安全弁を備えた構成の液化ガス気化装置としてい
る。According to a fourth aspect of the present invention, in addition to the configuration of any one of the first to third aspects, the second evaporator has a pressure detecting means for detecting the pressure of the liquefied gas, and the second evaporator has a bulk storage tank. Is a liquefied gas vaporizer having a safety valve.
【００１５】第２蒸発器に設けた圧力検知手段と、バル
ク貯槽に設けた安全弁とを備えたことにより、ガス消費
機器の運転を急に停止した時に発生する圧力の急上昇
を、第２蒸発器内の圧力検知手段で検知し、液戻り管に
設けた開閉弁を開放して第２蒸発器内の圧力を低下させ
るとともに、バルク貯槽内の圧力が異常上昇した時は安
全弁で外部にガスを放出することにより、装置の破損を
防止することができる。[0015] The provision of the pressure detecting means provided in the second evaporator and the safety valve provided in the bulk storage tank enables the second evaporator to prevent a sudden rise in pressure occurring when the operation of the gas consuming equipment is suddenly stopped. The pressure in the second evaporator is reduced by opening the on-off valve provided in the liquid return pipe, and when the pressure in the bulk storage tank rises abnormally, the safety valve releases gas to the outside. The release can prevent the device from being damaged.
【００１６】請求項５に記載した発明は、請求項１から
４のいずれか１項に記載した構成に加え、第２蒸発器
は、バルク貯槽の気相部と第２蒸発器の出口側配管とを
接続する流路切換手段を有するバイパス配管を備えた構
成の液化ガス気化装置としている。According to a fifth aspect of the present invention, in addition to the configuration according to any one of the first to fourth aspects, the second evaporator includes a gas phase portion of a bulk storage tank and an outlet pipe of the second evaporator. And a liquefied gas vaporizer having a bypass pipe having a flow path switching means for connecting the liquefied gas.
【００１７】バルク貯槽の気相部と第２蒸発器の出口側
配管とを接続する流路切換手段を有するバイパス配管を
備えたことによって、バルク貯槽内の圧力が十分に高い
時は、バイパス配管に設けた流路切換手段をバルク貯槽
の気相部と消費機器とを直接接続するように切り換えて
運転し、また、バルク貯槽内の圧力が低くなって十分な
量の液化ガスを供給できなくなった時は、第１蒸発器と
第２蒸発器を経由するように流路を切り換えて運転する
ことにより、液化ガスを蒸発気化させるためのエネルギ
ーを大幅に低減することができる。By providing a bypass pipe having flow switching means for connecting the gas phase portion of the bulk storage tank and the outlet pipe of the second evaporator, when the pressure in the bulk storage tank is sufficiently high, the bypass pipe is provided. The operation is performed by switching the flow path switching means provided in the tank so as to directly connect the gas phase portion of the bulk storage tank and the consumer equipment, and the pressure in the bulk storage tank becomes low, so that a sufficient amount of liquefied gas cannot be supplied. In this case, by switching the flow path so as to pass through the first evaporator and the second evaporator, the energy for evaporating the liquefied gas can be significantly reduced.
【００１８】請求項６に記載した発明は、請求項１から
５のいずれか１項に記載した構成に加え、第２蒸発器
は、加熱手段との間に設けた高温で溶融する伝熱板を備
えた構成の液化ガス気化装置としている。According to a sixth aspect of the present invention, in addition to the configuration of any one of the first to fifth aspects, the second evaporator is provided with a heat transfer plate which is provided between the second evaporator and the heating means and melts at a high temperature. A liquefied gas vaporizer having a configuration including:
【００１９】加熱手段に異常が生じて温度が異常に上昇
した場合、伝熱板を溶解して第２蒸発器と加熱手段との
間に隙間を生じさせて、加熱手段の発熱が第２蒸発器に
伝達されることを防止して、安全を確保できる液化ガス
気化装置としている。When the temperature of the heating means rises abnormally due to the abnormality of the heating means, the heat transfer plate is melted to form a gap between the second evaporator and the heating means, and the heat generated by the heating means is reduced by the second evaporation. This is a liquefied gas vaporizer that can ensure safety by preventing transmission to the vessel.
【００２０】請求項７に記載した発明は、請求項１から
６のいずれか１項に記載した液化ガス気化装置と、制御
装置に運転開始と運転停止の信号を送ると共に、制御装
置から圧力異常を示す信号を受けると警報を発する遠隔
操作装置とを構成要件として備えた液化ガス気化装置と
している。According to a seventh aspect of the present invention, there is provided a liquefied gas vaporizer according to any one of the first to sixth aspects, wherein an operation start and an operation stop signal are sent to the control device, and a pressure abnormality is transmitted from the control device. A liquefied gas vaporizer is provided with a remote control device that issues an alarm when receiving a signal indicating the following.
【００２１】遠隔制御装置によって、装置の動作開始と
動作停止を指示することができ、制御装置から圧力異常
などの警報信号を受けて警報を発するようにして、使用
者に異常の発生を報知でき、安全性を確保した液化ガス
気化装置としている。The remote control device can instruct the start and stop of operation of the device, and can receive an alarm signal such as a pressure abnormality from the control device to issue an alarm, thereby notifying the user of the occurrence of the abnormality. The liquefied gas vaporizer ensures safety.
【００２２】[0022]
【実施例】（実施例１）図１は、本発明の第１の実施例
である液化ガス気化装置の構成を示すブロック図であ
る。本実施例の液化ガス気化装置は、液化ガスを貯留す
るバルク貯槽１と、配管３０によってバルク貯槽１内の
液相部に接続した減圧手段９と、減圧手段９に接続した
第１蒸発器１１および第２蒸発器１３と、前記第１蒸発
器１１と第２蒸発器１３の運転を制御する制御装置８と
を備えている。(Embodiment 1) FIG. 1 is a block diagram showing a configuration of a liquefied gas vaporizer according to a first embodiment of the present invention. The liquefied gas vaporizer of the present embodiment includes a bulk storage tank 1 for storing a liquefied gas, a decompression means 9 connected to a liquid phase portion in the bulk storage tank 1 by a pipe 30, and a first evaporator 11 connected to the decompression means 9. And a control device 8 for controlling the operation of the first evaporator 11 and the second evaporator 13.
【００２３】前記減圧手段９は、本実施例では膨張弁を
使用している。また前記第１蒸発器１１と第２蒸発器１
３とは、減圧手段９によって断熱膨張させた液化ガスを
気化させて、気相の液化ガスとするように作用するもの
である。第１蒸発器１１は、外気を送風する送風ファン
によって構成した蒸発冷却器１０を有している。また第
２蒸発器１３は、本実施例では金属筐体の底部に設けた
発熱手段４を有している。前記制御装置８は、この蒸発
冷却器１０と、発熱手段４の通電を制御している。The pressure reducing means 9 uses an expansion valve in this embodiment. The first evaporator 11 and the second evaporator 1
Reference numeral 3 indicates that the liquefied gas adiabatically expanded by the decompression means 9 is vaporized to act as a gaseous liquefied gas. The first evaporator 11 has an evaporative cooler 10 configured by a blower fan that blows outside air. Further, the second evaporator 13 has the heat generating means 4 provided at the bottom of the metal housing in this embodiment. The control device 8 controls the energization of the evaporative cooler 10 and the heating means 4.
【００２４】前記第１蒸発器１１と第２蒸発器１２を通
って気化した液化ガスは、配管３１によってガス使用機
器１４に供給されている。、以上のように構成された液
化ガス気化装置について、以下その動作、作用を説明す
る。バルク貯槽１内に貯留されている液化ガス２は、減
圧手段９で減圧されて断熱膨張し、外気温度より低くな
って第１蒸発器１１に送られる。第１蒸発器１１は蒸発
冷却器１０を有しており、制御装置８の指示によって蒸
発冷却器１０が運転されている。このため、蒸発冷却器
１０が送風する外気が第１蒸発器１１に接触している。
このため、第１蒸発器１１内では、液化ガスが気化され
る。The liquefied gas vaporized through the first evaporator 11 and the second evaporator 12 is supplied to a gas-using device 14 via a pipe 31. The operation and operation of the liquefied gas vaporizer configured as described above will be described below. The liquefied gas 2 stored in the bulk storage tank 1 is decompressed by the decompression means 9 and adiabatically expanded, and is sent to the first evaporator 11 at a temperature lower than the outside air temperature. The first evaporator 11 has an evaporative cooler 10, and the evaporative cooler 10 is operated according to an instruction from the control device 8. Therefore, the outside air blown by the evaporative cooler 10 is in contact with the first evaporator 11.
Therefore, the liquefied gas is vaporized in the first evaporator 11.
【００２５】前記第１蒸発器１１から気化した液化ガス
と、未気化状態の液化ガスは、第２蒸発器１３に入る。
第１蒸発器１１で未気化状態の液化ガスが生ずる場合
は、外気温度が著しく低い時またはガス消費機器１４で
の液化ガスの消費量が著しく多い時である。The liquefied gas vaporized from the first evaporator 11 and the liquefied gas in a non-vaporized state enter the second evaporator 13.
The case where the liquefied gas in the non-vaporized state is generated in the first evaporator 11 is when the outside air temperature is extremely low or when the consumption of the liquefied gas in the gas consuming device 14 is extremely large.
【００２６】第２蒸発器１３では、ヒータ等によって構
成した発熱手段４を筐体の外部に設けている。この発熱
手段４も、前記制御装置８の指示によって通電されてい
る。従って、第２蒸発器１３に入った未気化状態の液化
ガスを含む液化ガスは、十分気化される。In the second evaporator 13, the heating means 4 constituted by a heater or the like is provided outside the housing. The heat generating means 4 is also energized according to an instruction from the control device 8. Therefore, the liquefied gas including the unvaporized liquefied gas that has entered the second evaporator 13 is sufficiently vaporized.
【００２７】第２蒸発器１３から出た気化した液化ガス
は、配管３１を通ってガス消費機器１４に送られる。The vaporized liquefied gas from the second evaporator 13 is sent to a gas consuming device 14 through a pipe 31.
【００２８】このようにして、ガス消費機器１４は、外
気温度が低温となっていても、十分な気相の液化ガスの
供給を受けることができるものである。In this manner, the gas consuming device 14 can receive a sufficient supply of gaseous liquefied gas even when the outside air temperature is low.
【００２９】以上のように本実施例においては、先ず外
気を熱源とする第１蒸発器１１で、液化ガスを蒸発気化
させて、第１蒸発器１１で気化されなかった液相の液化
ガスを第２蒸発器１３で電気ヒータなどで構成した発熱
手段４を使用して気化するようにしている。このため、
液化ガスの気化に必要とする電力等のエネルギーは、著
しく低減できるものである。また、外気温度が低い状態
であっても、第２蒸発器１３に備えている発熱手段４を
使用することによって、安定した液化ガスの気化を行う
ことができるものである。As described above, in this embodiment, first, the liquefied gas is evaporated and vaporized by the first evaporator 11 using the outside air as a heat source, and the liquefied gas that has not been vaporized by the first evaporator 11 is removed. The second evaporator 13 is vaporized by using the heating means 4 composed of an electric heater or the like. For this reason,
Energy such as electric power required for vaporizing the liquefied gas can be significantly reduced. In addition, even when the outside air temperature is low, the liquefied gas can be stably vaporized by using the heating means 4 provided in the second evaporator 13.
【００３０】なお本実施例では、発熱手段４としてヒー
タを使用しているが、ガスあるいは石油等の燃料を燃焼
させた燃焼熱を用いる構成としても支障はないものであ
る。In this embodiment, a heater is used as the heat generating means 4. However, there is no problem in using a combustion heat obtained by burning a fuel such as gas or petroleum.
【００３１】（実施例２）続いて本発明の第２の実施例
について説明する。図２は、本発明の第２の実施例であ
る液化ガス気化装置の構成を示すブロック図である。(Embodiment 2) Next, a second embodiment of the present invention will be described. FIG. 2 is a block diagram showing a configuration of a liquefied gas vaporizer according to a second embodiment of the present invention.
【００３２】本実施例では、第２蒸発器１３に、第２蒸
発器１３を構成する液溜容器１２内の液量を検知する液
面センサーなどによって構成した液量検知手段１５と、
第２蒸発器１３の出口に設けた出口開閉弁１６とを有し
ている。前記液量検知手段１５の液量の情報は制御装置
８に伝達されており、制御装置８はこの液量が基準値を
維持するように、出口開閉弁１６の開閉度を制御してい
る。In the present embodiment, the second evaporator 13 includes a liquid amount detecting means 15 including a liquid level sensor for detecting the liquid amount in the liquid reservoir 12 constituting the second evaporator 13, and the like.
An outlet opening / closing valve 16 provided at the outlet of the second evaporator 13 is provided. The information on the liquid amount of the liquid amount detecting means 15 is transmitted to the control device 8, and the control device 8 controls the opening / closing degree of the outlet opening / closing valve 16 so that the liquid amount maintains the reference value.
【００３３】以上のように構成された燃料供給装置につ
いて、以下その動作、作用を説明する。外気の温度が極
めて低い、あるいはガス諸費機器１４が極めて大量にガ
スを使用している等によって、第２蒸発器１３による液
化ガスの気化量が不足する場合には、第２蒸発器１３内
に未気化状態の液相の液化ガスが溜まる。The operation and operation of the fuel supply device configured as described above will be described below. If the amount of the liquefied gas vaporized by the second evaporator 13 is insufficient due to the extremely low temperature of the outside air or the extremely large amount of gas used by the gas expense equipment 14, the second evaporator 13 A liquefied gas in a liquid phase in an unvaporized state accumulates.
【００３４】本実施例では、この液相の液化ガスの量を
液量検知手段１５で検知しており、この液相の液化ガス
の量が一定の値を超えて増加したときには、出口開閉弁
１６を閉止するようにして液相の液化ガスがガス消費機
器１４に送られることを防止している。すなわち、安全
を確保した液化ガス気化装置としているものである。In the present embodiment, the amount of the liquefied gas in the liquid phase is detected by the liquid amount detecting means 15, and when the amount of the liquefied gas in the liquid phase increases beyond a certain value, the outlet opening / closing valve is opened. The liquid phase liquefied gas is prevented from being sent to the gas consuming device 14 by closing 16. That is, it is a liquefied gas vaporizer that ensures safety.
【００３５】以上のように本実施例においては、外気の
異常低温状態やガス消費機器１４での異常に大量なガス
の使用状態が発生した場合でも、液量検知手段１５で異
常を検知して制御装置８で出口開閉弁１６を閉止するこ
とにより安全を確保できる液化ガス気化装置とできるも
のである。As described above, in the present embodiment, even when an abnormally low temperature of the outside air or an abnormally large amount of gas usage in the gas consuming device 14 occurs, the liquid amount detecting means 15 detects the abnormality. By closing the outlet on-off valve 16 by the control device 8, a liquefied gas vaporizer that can ensure safety can be provided.
【００３６】（実施例３）続いて本発明の第３の実施例
について説明する。図３は、本実施例の液化ガス気化装
置の構成を示すブロック図である。(Embodiment 3) Next, a third embodiment of the present invention will be described. FIG. 3 is a block diagram showing the configuration of the liquefied gas vaporizer of the present embodiment.
【００３７】本実施例では、第２蒸発器１３を構成する
液溜容器１２の低部と、バルク貯槽１とを接続する液戻
り管１７を使用している。液戻り管１７には、制御装置
８が開閉制御する開閉弁１８を配置している。In the present embodiment, a liquid return pipe 17 for connecting the lower part of the liquid storage container 12 constituting the second evaporator 13 and the bulk storage tank 1 is used. An on-off valve 18 controlled by the control device 8 to open and close is disposed in the liquid return pipe 17.
【００３８】以上のように構成された燃料供給装置につ
いて、以下その動作、作用を説明する。The operation and operation of the fuel supply device configured as described above will be described below.
【００３９】第２蒸発器１３の液溜容器１２に溜まった
未気化状態の液相の液化ガスは、開閉弁１８を開放する
ことにより、液戻り管１７を通してバルク貯槽１に戻る
ものである。The liquefied gas in the non-vaporized state stored in the liquid storage container 12 of the second evaporator 13 returns to the bulk storage tank 1 through the liquid return pipe 17 by opening the on-off valve 18.
【００４０】また、バルク貯槽１内の圧力が十分に高い
場合は、開閉弁１８を開放すると、バルク貯槽１内の気
相部の液化ガスが液戻り管１７から直接第２蒸発器１３
に供給される。このため、ガス消費機器１４に素早く気
相の液化ガスを供給できる。When the pressure in the bulk storage tank 1 is sufficiently high, when the on-off valve 18 is opened, the liquefied gas in the gas phase in the bulk storage tank 1 flows directly from the liquid return pipe 17 to the second evaporator 13.
Supplied to For this reason, the gaseous liquefied gas can be supplied to the gas consuming device 14 quickly.
【００４１】また、バルク貯槽１内の圧力が異常上昇し
た時は、液戻り管１７の開閉弁１８を開放して、第１蒸
発器１１で高温の液化ガスを冷却して、低温とした液化
ガスをバルク貯槽１に戻すようにして、バルク貯槽１内
を冷却して圧力を下げることができる。When the pressure in the bulk storage tank 1 rises abnormally, the open / close valve 18 of the liquid return pipe 17 is opened, and the first evaporator 11 cools the high-temperature liquefied gas to reduce the liquefied gas to a low temperature. By returning the gas to the bulk storage tank 1, the pressure inside the bulk storage tank 1 can be reduced by cooling.
【００４２】以上のように本実施例においては、液戻り
管１７と開閉弁１８を設けることにより、液溜容器１２
から液をバルク貯槽１にもどすことができ、液溜容器１
２が液で満たされて破損することを防止できる。またバ
ルク貯槽１内液化ガスが十分な気化熱量を保有している
時などは、バルク貯槽１内の気相から第１蒸発器１１を
介さずに直接第２蒸発器１３からガス消費機器１４へ気
化した液化ガスを供給することができる。さらに第１蒸
発器１１を冷却器として動作させて液化ガス２を循環さ
せることができるので、異常圧力上昇時の圧力を低減す
ることができる。また、第１蒸発器１１に霜が付着して
蒸発能力が著しく低下した場合は、第２蒸発器１３の発
熱手段４で加熱して霜を溶かすことができる。As described above, in the present embodiment, the provision of the liquid return pipe 17 and the open /
The liquid can be returned to the bulk storage tank 1 from the
2 can be prevented from being filled with liquid and damaged. Also, when the liquefied gas in the bulk storage tank 1 has a sufficient amount of heat of vaporization, for example, the gaseous phase in the bulk storage tank 1 is directly sent from the second evaporator 13 to the gas consuming device 14 without passing through the first evaporator 11. A vaporized liquefied gas can be supplied. Further, since the liquefied gas 2 can be circulated by operating the first evaporator 11 as a cooler, the pressure at the time of abnormal pressure rise can be reduced. Further, when frost adheres to the first evaporator 11 and the evaporation ability is significantly reduced, the frost can be melted by heating with the heating means 4 of the second evaporator 13.
【００４３】（実施例４）続いて本発明の第４の実施例
について説明する。図４は、本実施例の構成を示すブロ
ック図である。本実施例では、第２蒸発器１３に圧力検
知手段１９を設けており、バルク貯槽１に安全弁２０を
設けている。(Embodiment 4) Next, a fourth embodiment of the present invention will be described. FIG. 4 is a block diagram illustrating the configuration of the present embodiment. In this embodiment, the second evaporator 13 is provided with the pressure detecting means 19, and the bulk storage tank 1 is provided with the safety valve 20.
【００４４】以上のように構成された燃料供給装置につ
いて、以下その動作、作用を説明する。ガス消費機器１
４が、例えば運転を急停止した時には、第２蒸発器内１
３内では圧力が急上昇する。圧力検知手段１９が検知す
る圧力情報から、制御装置８が異常状態の発生を認識す
ると、液戻り管１７に設けた開閉弁１８を開放して第２
蒸発器１３内の圧力を低下させる。また、バルク貯槽１
内の圧力が異常上昇した時は、安全弁２０で外部にガス
を放出させている。The operation and operation of the fuel supply device configured as described above will be described below. Gas consuming equipment 1
For example, when the operation is suddenly stopped, the inside of the second evaporator 1
Within 3 the pressure rises sharply. When the control device 8 recognizes the occurrence of the abnormal state from the pressure information detected by the pressure detecting means 19, the opening / closing valve 18 provided in the liquid return pipe 17 is opened and the second
The pressure in the evaporator 13 is reduced. Also, bulk storage tank 1
When the internal pressure rises abnormally, the safety valve 20 releases the gas to the outside.
【００４５】以上のように本実施例においては、圧力検
知手段１９と安全弁２０とを設けたことにより、第２蒸
発器１３内の圧力上昇を検知して圧力を低下させるとと
もに、バルク貯槽１内の圧力が破壊圧に近づいたときに
は、ガスを外部に放出することにより装置の破損および
爆発を未然に防止することができ、安全を確保した液化
ガス気化装置を実現するものである。As described above, in the present embodiment, the provision of the pressure detecting means 19 and the safety valve 20 detects the pressure rise in the second evaporator 13 to lower the pressure, and at the same time reduces the pressure in the bulk storage tank 1. When the pressure approaches the destruction pressure, the gas is released to the outside to prevent damage and explosion of the device before it occurs, thereby realizing a liquefied gas vaporizer that ensures safety.
【００４６】（実施例５）続いて本発明の第５の実施例
について説明する。図５は本実施例の構成を示すブロッ
ク図である。本実施例では、バルク貯槽１の気相部と第
２蒸発器１３の出口側配管とを接続するバイパス配管２
１を設けている。このバイパス配管２１には、流路切換
手段２２を設けている。(Embodiment 5) Next, a fifth embodiment of the present invention will be described. FIG. 5 is a block diagram showing the configuration of the present embodiment. In the present embodiment, a bypass pipe 2 connecting the gas phase part of the bulk storage tank 1 and the outlet pipe of the second evaporator 13 is used.
1 is provided. The bypass pipe 21 is provided with a flow path switching means 22.
【００４７】以上のように構成された燃料供給装置につ
いて、以下その動作、作用を説明する。バルク貯槽１内
の圧力が十分に高い時は、制御装置８で流路切換手段２
２をバイパス配管２１側に切り換える。この状態では、
バルク貯槽１の気相部とガス消費機器１４とは直接接続
されている。すなわち、減圧手段９，第１蒸発器１１、
第２蒸発器１３を使用しない状態で、バルク貯槽１から
気相の液化ガスを直接ガス消費機器１４に供給するもの
である。して運転し、一方、バルク貯槽１内の圧力が低
くなって十分な量の燃料ガスを消費機器１４に供給でき
なくなった時に、第１蒸発器１１と第２蒸発器１３を経
由して液化ガスを蒸発気化させて消費機器１４に供給す
ることとなる。The operation and operation of the fuel supply device configured as described above will be described below. When the pressure in the bulk storage tank 1 is sufficiently high, the controller 8 controls the flow path switching means 2
2 is switched to the bypass pipe 21 side. In this state,
The gas phase part of the bulk storage tank 1 and the gas consuming equipment 14 are directly connected. That is, the pressure reducing means 9, the first evaporator 11,
In the state where the second evaporator 13 is not used, the gaseous liquefied gas is directly supplied from the bulk storage tank 1 to the gas consuming device 14. On the other hand, when the pressure in the bulk storage tank 1 becomes low and a sufficient amount of fuel gas cannot be supplied to the consumer equipment 14, the liquefaction is performed via the first and second evaporators 11 and 13. The gas is vaporized and supplied to the consumer equipment 14.
【００４８】以上のように本実施例においては、バイパ
ス配管２１と、制御装置８で切り換える流路切換手段２
２とを設けることにより、バルク貯槽１から気相と液相
を切り換えてとりだせるので、液化ガスの蒸発気化が必
要な時だけ蒸発器で蒸発させて消費機器１４に供給する
ことができ、液化ガスを蒸発気化させるためのエネルギ
ーを大幅に低減することができる。As described above, in the present embodiment, the bypass pipe 21 and the flow path switching means 2 switched by the control device 8 are used.
2, the gaseous phase and the liquid phase can be switched and taken out from the bulk storage tank 1, so that the liquefied gas can be vaporized by the evaporator and supplied to the consumer equipment 14 only when it is necessary to vaporize the liquefied gas. Energy for evaporating gas can be significantly reduced.
【００４９】（実施例６）図６は、本発明の第６の実施
例の燃料供給装置の構成図である。図６において、実施
例１〜５の構成と異なるところは、第２蒸発器１３の液
溜容器１２と発熱手段４との間にはんだのような高温で
溶融する伝熱板２３を設けた点である。(Embodiment 6) FIG. 6 is a configuration diagram of a fuel supply apparatus according to a sixth embodiment of the present invention. 6 is different from the first to fifth embodiments in that a heat transfer plate 23 that melts at a high temperature such as solder is provided between the liquid reservoir 12 of the second evaporator 13 and the heat generating means 4. It is.
【００５０】以上のように構成された燃料供給装置につ
いて、以下その動作、作用を説明する。The operation and operation of the fuel supply device configured as described above will be described below.
【００５１】発熱手段４または制御装置８などに異常が
生じて発熱手段４の温度が異常に上昇し高温になった場
合、伝熱板２３も高温になり溶融点を越えると溶解して
液溜容器１２と発熱手段４との間に隙間が生じ発熱手段
４の熱を液溜容器１２側に伝えなくなることとなる。When an abnormality occurs in the heating means 4 or the control device 8 and the temperature of the heating means 4 rises abnormally and rises to a high temperature, the heat transfer plate 23 also rises to a high temperature. A gap is created between the container 12 and the heat generating means 4, and the heat of the heat generating means 4 is not transmitted to the liquid storage container 12 side.
【００５２】以上のように本実施例においては、高温で
溶融する伝熱板２３を液溜容器１２と発熱手段４との間
にもうけたことにより、温度異常時に伝熱板２３を溶解
して隙間を設けて液溜容器１２に熱を伝えなくすること
により、異常時においても第２蒸発器１３の液溜容器１
２の破損および爆発を防止することができる。As described above, in this embodiment, the heat transfer plate 23, which melts at a high temperature, is provided between the liquid reservoir 12 and the heating means 4, so that the heat transfer plate 23 is melted when the temperature is abnormal. By providing a gap to prevent heat from being transmitted to the liquid storage container 12, the liquid storage container 1 of the second evaporator 13 can be operated even in an abnormal state.
2 can be prevented from being damaged and exploded.
【００５３】（実施例７）図７は、本発明の第７の実施
例の燃料供給装置の構成図である。図７において、実施
例１〜６の構成と異なるところは、制御装置８から圧力
異常などの警報信号を受けて警報を発するとともに制御
装置８に運転開始と運転停止の信号を送り機器の発停を
行う遠隔操作装置２４を備えた点である。(Embodiment 7) FIG. 7 is a configuration diagram of a fuel supply apparatus according to a seventh embodiment of the present invention. In FIG. 7, the difference from the configurations of Embodiments 1 to 6 is that an alarm signal such as a pressure abnormality is received from the control device 8 and an alarm is issued, and an operation start and operation stop signal is sent to the control device 8 to start and stop the equipment. Is provided with a remote control device 24 for performing the following.
【００５４】以上のように構成された燃料供給装置につ
いて、以下その動作、作用を説明する。The operation and operation of the fuel supply device configured as described above will be described below.
【００５５】燃料供給装置を屋外に消費機器１４を室内
に設置して使用する場合、遠隔操作装置２４を消費機器
１４の近くに設置することにより、消費機器１４を使用
するときまたは停止するときに屋外の燃料供給装置まで
いって操作する必要がなく使用勝手が良い。さらに、燃
料供給装置に、温度または圧力異常が発生した場合には
燃料供給装置に設けた温度または圧力センサーの出力値
を制御装置８を介して遠隔操作装置２４におくり表示す
ることで室内において運転の状況を確認することができ
るとともに、出力値が任意の値を超えた場合に警報を発
することにより未然に事故をぼうしする事ができる。When the fuel supply device is used outdoors with the consumer equipment 14 installed indoors, the remote control device 24 is installed near the consumer equipment 14 so that when the consumer equipment 14 is used or stopped. It is not necessary to go to the outdoor fuel supply device and operate it, which is convenient. Further, when a temperature or pressure abnormality occurs in the fuel supply device, the output value of the temperature or pressure sensor provided in the fuel supply device is sent to the remote control device 24 via the control device 8 and displayed, thereby operating indoors. Can be confirmed, and if an output value exceeds an arbitrary value, an alarm can be issued to prevent an accident.
【００５６】以上のように本実施例においては、遠隔操
作装置２４を設けたことにより、室内に設置した遠隔操
作装置２４で屋外に設置した燃料供給装置を運転停止す
ることができるとともに、燃料供給装置の異常を室内の
使用者に迅速に伝えることができる。As described above, in the present embodiment, the provision of the remote control device 24 allows the remote control device 24 installed indoors to stop the operation of the fuel supply device installed outdoors, An abnormality in the device can be promptly transmitted to a user in the room.
【００５７】[0057]
【発明の効果】以上のように、請求項１〜７に記載の発
明によれば、外気を熱源とする第1蒸発器と電気ヒータ
ーなどの発熱手段を有する第２蒸発器を設けているた
め、少ないエネルギーで経済的に液化ガスを蒸発気化さ
せるとともに、安定した能力で安全に燃料ガスを消費機
器に供給することができる。As described above, according to the first to seventh aspects of the present invention, the first evaporator using external air as a heat source and the second evaporator having heating means such as an electric heater are provided. In addition, the liquefied gas can be economically evaporated and vaporized with little energy, and the fuel gas can be safely supplied to the consumer equipment with a stable capacity.
【図１】本発明の実施例１における燃料供給装置の構成
図FIG. 1 is a configuration diagram of a fuel supply device according to a first embodiment of the present invention.
【図２】本発明の実施例２における燃料供給装置の構成
図FIG. 2 is a configuration diagram of a fuel supply device according to a second embodiment of the present invention.
【図３】本発明の実施例３における燃料供給装置の構成
図FIG. 3 is a configuration diagram of a fuel supply device according to a third embodiment of the present invention.
【図４】本発明の実施例４における燃料供給装置の構成
図FIG. 4 is a configuration diagram of a fuel supply device according to a fourth embodiment of the present invention.
【図５】本発明の実施例５における燃料供給装置の構成
図FIG. 5 is a configuration diagram of a fuel supply device according to a fifth embodiment of the present invention.
【図６】本発明の実施例６における燃料供給装置の構成
図FIG. 6 is a configuration diagram of a fuel supply device according to a sixth embodiment of the present invention.
【図７】本発明の実施例７における燃料供給装置の構成
図FIG. 7 is a configuration diagram of a fuel supply device according to a seventh embodiment of the present invention.
【図８】従来のの燃料供給装置の構成図FIG. 8 is a configuration diagram of a conventional fuel supply device.
１ バルク貯槽 ２ 液化ガス ４ 発熱手段 ８ 制御装置 ９ 減圧手段 １０ 蒸発冷却器 １１ 第１蒸発器 １２ 液溜容器 １３ 第２蒸発器 １４ 消費機器 １５ 液量検知手段 １６ 出口開閉弁 １７ 液戻り管 １８ 開閉弁 １９ 圧力検知手段 ２０ 安全弁 ２１ バイパス配管 ２２ 流路切換弁 ２３ 伝熱板 ２４ 遠隔操作装置 DESCRIPTION OF SYMBOLS 1 Bulk storage tank 2 Liquefied gas 4 Heat generation means 8 Control device 9 Decompression means 10 Evaporative cooler 11 First evaporator 12 Liquid storage container 13 Second evaporator 14 Consumer equipment 15 Liquid amount detection means 16 Outlet opening / closing valve 17 Liquid return pipe 18 On-off valve 19 Pressure detection means 20 Safety valve 21 Bypass pipe 22 Flow path switching valve 23 Heat transfer plate 24 Remote control device
───────────────────────────────────────────────────── フロントページの続き (72)発明者 日下 貴晶 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 Ｆターム(参考） 3E072 AA03 CA03 DB01 3K068 AA02 AB19 AB23 BB02 CA01 CC00 DA16 GA02 GA03 HA05 JA01 JA02 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Takaaki Kusaka 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F-term (reference) 3E072 AA03 CA03 DB01 3K068 AA02 AB19 AB23 BB02 CA01 CC00 DA16 GA02 GA03 HA05 JA01 JA02
Claims (7)
バルク貯槽内の液相の液化ガス部分から配管接続される
減圧手段と、前記減圧手段を入口側に接続して外気熱で
加熱する第１蒸発器と、発熱手段を有する液溜容器の入
口側に前記第１蒸発器を接続し、出口をガス使用機器に
接続する第２蒸発器と、前記第１蒸発器と前記第２蒸発
器の運転を制御する制御装置とを備えた液化ガス気化装
置。1. A bulk storage tank for storing a liquefied gas, a decompression means connected to a pipe from a liquefied gas portion of a liquid phase in the bulk storage tank, and a decompression means connected to an inlet side for heating by external heat. (1) an evaporator, a second evaporator connecting the first evaporator to an inlet side of a liquid storage container having a heat generating means, and an outlet connected to a gas-using device; the first evaporator and the second evaporator Liquefied gas vaporizer comprising: a control device for controlling the operation of the liquefied gas.
化ガスの量を検知する液量検知手段と、前記液量検知手
段の検知量に応じて開閉する出口開閉弁とを備えた請求
項１に記載した液化ガス気化装置。2. The liquid evaporator according to claim 1, wherein the second evaporator has a liquid amount detecting means for detecting an amount of a liquefied gas in a liquid phase in the second evaporator; The liquefied gas vaporizer according to claim 1, further comprising:
する開閉弁を有する液戻り管を備えた請求項１または２
に記載した液化ガス気化装置。3. The liquid evaporator according to claim 1, wherein the second evaporator is provided with a liquid return pipe having an on-off valve connected to the bulk storage tank at the bottom.
Liquefied gas vaporizer described in 1.
圧力検知手段を有し、バルク貯槽は安全弁を備えた請求
項１から３のいずれか１項に記載した液化ガス気化装
置。4. The liquefied gas vaporizer according to claim 1, wherein the second evaporator has pressure detecting means for detecting the pressure of the liquefied gas, and the bulk storage tank has a safety valve.
２蒸発器の出口側配管とを接続する流路切換手段を有す
るバイパス配管を備えた請求項１から４のいずれか１項
に記載した液化ガス気化装置。5. The second evaporator according to claim 1, further comprising a bypass pipe having flow path switching means for connecting a gas phase portion of the bulk storage tank and an outlet pipe of the second evaporator. The liquefied gas vaporizer described in the paragraph.
高温で溶融する伝熱板を備えた請求項１から５のいずれ
か１項に記載した液化ガス気化装置。6. The liquefied gas vaporizer according to claim 1, wherein the second evaporator includes a heat transfer plate that is provided between the second evaporator and the heating unit and melts at a high temperature.
た液化ガス気化装置と、制御装置に運転開始と運転停止
の信号を送ると共に、制御装置から圧力異常を示す信号
を受けると警報を発する遠隔操作装置とを備えた液化ガ
ス気化装置。7. A liquefied gas vaporizer according to any one of claims 1 to 6, and an operation start and operation stop signal sent to the control device, and an alarm when a signal indicating an abnormal pressure is received from the control device. Liquefied gas vaporizer comprising a remote control device for emitting gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001179704A JP4273680B2 (en) | 2001-06-14 | 2001-06-14 | Liquefied gas vaporizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001179704A JP4273680B2 (en) | 2001-06-14 | 2001-06-14 | Liquefied gas vaporizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002372225A true JP2002372225A (en) | 2002-12-26 |
| JP4273680B2 JP4273680B2 (en) | 2009-06-03 |
Family
ID=19020234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001179704A Expired - Fee Related JP4273680B2 (en) | 2001-06-14 | 2001-06-14 | Liquefied gas vaporizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4273680B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007516398A (en) * | 2003-12-18 | 2007-06-21 | ワルトシラ フィンランド オサケユキチュア | Marine vessel gas supply apparatus and method for providing gas in a marine vessel gas supply apparatus |
| JP2009543998A (en) * | 2006-07-18 | 2009-12-10 | エアバス フランス | Heat exhaust device |
| JP2021032144A (en) * | 2019-08-23 | 2021-03-01 | いすゞ自動車株式会社 | Fuel supply device of natural gas engine |
-
2001
- 2001-06-14 JP JP2001179704A patent/JP4273680B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007516398A (en) * | 2003-12-18 | 2007-06-21 | ワルトシラ フィンランド オサケユキチュア | Marine vessel gas supply apparatus and method for providing gas in a marine vessel gas supply apparatus |
| KR101155786B1 (en) * | 2003-12-18 | 2012-06-12 | 바르실라 핀랜드 오이 | Gas supply arrangement of a marine vessel and method of controlling gas pressure in a gas supply arrangement of a marine vessel |
| JP2009543998A (en) * | 2006-07-18 | 2009-12-10 | エアバス フランス | Heat exhaust device |
| US9310145B2 (en) | 2006-07-18 | 2016-04-12 | Airbus Operations S.A.S. | Heat flow device |
| JP2021032144A (en) * | 2019-08-23 | 2021-03-01 | いすゞ自動車株式会社 | Fuel supply device of natural gas engine |
| JP7234862B2 (en) | 2019-08-23 | 2023-03-08 | いすゞ自動車株式会社 | natural gas engine fuel supply |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4273680B2 (en) | 2009-06-03 |
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