JPS587126B2 - How to burn liquefied gas fuel - Google Patents
How to burn liquefied gas fuelInfo
- Publication number
- JPS587126B2 JPS587126B2 JP8387177A JP8387177A JPS587126B2 JP S587126 B2 JPS587126 B2 JP S587126B2 JP 8387177 A JP8387177 A JP 8387177A JP 8387177 A JP8387177 A JP 8387177A JP S587126 B2 JPS587126 B2 JP S587126B2
- Authority
- JP
- Japan
- Prior art keywords
- liquefied gas
- gas fuel
- compressed air
- atomizer
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000446 fuel Substances 0.000 title claims description 55
- 238000001816 cooling Methods 0.000 claims description 20
- 239000007921 spray Substances 0.000 claims description 9
- 238000009841 combustion method Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000007791 dehumidification Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 41
- 238000002485 combustion reaction Methods 0.000 description 19
- 238000002156 mixing Methods 0.000 description 10
- 230000001105 regulatory effect Effects 0.000 description 6
- 239000002828 fuel tank Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Air Supply (AREA)
- Spray-Type Burners (AREA)
- Nozzles For Spraying Of Liquid Fuel (AREA)
Description
【発明の詳細な説明】
本発明は、メタン・エタン・プロパン・天然ガス等の極
低温の液化ガス燃料を液体状のまま噴霧して燃焼させる
液化ガス燃料の燃焼方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquefied gas fuel combustion method in which extremely low temperature liquefied gas fuel such as methane, ethane, propane, natural gas, etc. is sprayed and burned in a liquid state.
極低温液化ガス燃料は海水等をり用した蒸発器．により
気化させ、ガス化にしてガスバーナで燃焼させるのが一
般的な手法である。The cryogenic liquefied gas fuel is an evaporator that uses seawater, etc. A common method is to vaporize it, gasify it, and burn it with a gas burner.
しかし、このような燃焼方法は次のような欠点があった
。However, this combustion method has the following drawbacks.
■蒸発器が故障した場合に連続して燃焼させることは不
可能である。■Continuous combustion is impossible if the evaporator breaks down.
■蒸発器の建設費、製作費、保守費が高価であり、蒸発
器の予備として別途蒸発器を準備する事は経済的に困難
である。■Construction costs, manufacturing costs, and maintenance costs for the evaporator are expensive, and it is economically difficult to prepare a separate evaporator as a spare for the evaporator.
■ガス状で輸送した場合に配管系統が膨大となる。■If transported in gaseous form, the piping system would be enormous.
等が挙げられる。etc.
これらの事より、極低温液化ガス燃料を蒸発器を用いず
液状のま〜、燃焼させる燃焼方法が考えられるが、通常
の燃焼方法では、
■極低温液化ガス燃料を燃焼装置入口迄極低温に保持し
たとしても、燃焼装置内で高温の燃焼用空気及び火炎の
熱輻射を受けて加熱され蒸気閉塞を発生し不安定燃焼を
誘起する。Based on these facts, a combustion method that burns the cryogenic liquefied gas fuel in a liquid state without using an evaporator can be considered, but in the normal combustion method: Even if it is maintained, it will be heated by the heat radiation of the high temperature combustion air and flame within the combustion device, causing steam blockage and inducing unstable combustion.
■噴霧媒体（例えば空気）中の水分が噴霧化内で凝結し
、燃料噴霧が不可能となる。■ Moisture in the atomization medium (eg air) condenses within the atomization, making fuel atomization impossible.
■燃焼量を変化させる方法として燃焼圧を低下させると
、燃料は更に気化しやすくなり蒸気閉塞を誘起し不安定
燃焼を誘起する。■If the combustion pressure is lowered as a method of changing the amount of combustion, the fuel will more easily vaporize, inducing steam blockage and unstable combustion.
等の点が問題となる。The following points are problematic.
そこで本発明は、上記欠点のない極低温の液化ガス燃料
を液状のま５燃焼させる燃焼方法を提供することを目的
としてなされ、噴霧器に供給される液化ガス燃料の１部
を抽出し、同抽出した液化ガス燃料で圧縮空気を冷却す
るとともに湿分を除去した後前記噴霧器に供給し、同噴
霧器から冷却、除湿された圧縮空気を噴霧媒体として前
記液化ガス燃料を噴霧して燃焼させることを特徴として
液化ガス燃料の１部で冷却・除湿した圧縮空気を用いる
事により、極低温液化ガス燃料系統の保冷ならびに噴霧
孔内での圧縮空気中水分による凝結等が防止でき、安定
燃料が可能となった液化ガス燃料の燃焼方法を提供する
。Therefore, the present invention has been made for the purpose of providing a combustion method for burning extremely low-temperature liquefied gas fuel in a liquid state without the above-mentioned drawbacks, and in which a part of the liquefied gas fuel supplied to the atomizer is extracted, and the same is extracted. The compressed air is cooled with the liquefied gas fuel, moisture is removed, and then the compressed air is supplied to the atomizer, and the liquefied gas fuel is atomized and combusted using the cooled and dehumidified compressed air from the atomizer as the atomizing medium. By using compressed air that has been cooled and dehumidified with part of the liquefied gas fuel, it is possible to keep the cryogenic liquefied gas fuel system cool and prevent condensation due to moisture in the compressed air in the spray holes, making it possible to use stable fuel. The present invention provides a method for burning liquefied gas fuel.
さらに本発明は、噴霧器に供給される液化ガスの１部を
抽出し、同抽出した液化ガス燃料で圧縮空気を冷却する
とともに湿分を除去した後前記噴霧器に供給し、同噴霧
器内では、前記液化ガス燃料の噴射圧を一定に保ち噴霧
媒体の前記冷却・除湿後の圧縮空気の圧力を変化させて
前記噴霧器から噴霧して燃焼させることを特徴とし、極
低温液化ガス燃料の燃焼量を変化させるため当該燃料の
噴射圧力を低下させると蒸気閉塞を誘起して安定燃料が
不可能である事から、噴霧媒体の圧縮空気の圧力を変化
させて燃焼量を変化させることによりさらに安定した燃
焼を与える液化ガス燃料の燃焼方法を提供するものであ
る。Furthermore, the present invention extracts a part of the liquefied gas to be supplied to the atomizer, cools the compressed air with the extracted liquefied gas fuel and removes moisture, and then supplies it to the atomizer, and in the atomizer, the The method is characterized in that the injection pressure of the liquefied gas fuel is kept constant and the pressure of the compressed air after the cooling and dehumidification of the spray medium is varied to spray and burn it from the atomizer, thereby changing the combustion amount of the cryogenic liquefied gas fuel. If the injection pressure of the fuel is lowered in order to reduce the fuel injection pressure, vapor blockage will be induced, making it impossible to produce stable fuel. Therefore, by changing the pressure of the compressed air of the spray medium and changing the combustion amount, more stable combustion can be achieved. The present invention provides a method for burning liquefied gas fuel.
次に本発明を第１図ないし第３図に示す１実施の態様例
に基づいて具体的に説明する。Next, the present invention will be specifically explained based on an embodiment example shown in FIGS. 1 to 3.
第１図において、極低温液化ガス燃料タンク１は加圧ポ
ンプ２を介して噴霧器３と連通されている。In FIG. 1, a cryogenic liquefied gas fuel tank 1 is communicated with an atomizer 3 via a pressure pump 2. In FIG.
加圧ポンプ２と噴霧器３との途中と空気圧縮機４と連通
した冷却・除湿器５とが連通し、冷却・除湿器５とガス
バーナ６とがガス化燃料の泥賂により連通されている。A cooling/dehumidifier 5 communicating with the air compressor 4 is communicated between the pressurizing pump 2 and the sprayer 3, and the cooling/dehumidifier 5 and the gas burner 6 are communicated by means of gasified fuel.
又、冷却・除湿器５はさらに冷却空気流路により噴霧器
３と連通している。Moreover, the cooling/dehumidifier 5 further communicates with the sprayer 3 through a cooling air flow path.
７は送風機で、燃焼炉８に設けられた風箱９と連通して
いる。7 is a blower, which communicates with a wind box 9 provided in the combustion furnace 8.
１０は圧力調整弁で、加圧ポンプ２からの極低温液化ガ
ス燃料を極低温液体燃料タンク１ヘフィードバックさせ
ている。A pressure regulating valve 10 feeds back the cryogenic liquefied gas fuel from the pressurizing pump 2 to the cryogenic liquid fuel tank 1.
１１は冷却・除湿器５内に入いる空気の流量、圧力を調
整する空気圧力調整弁で、又１２は冷却・除湿器内で形
成された凝縮水の排出管である。11 is an air pressure regulating valve for adjusting the flow rate and pressure of air entering the cooling/dehumidifier 5, and 12 is a discharge pipe for condensed water formed within the cooling/dehumidifier.
次に噴霧器３について第２図に基づいて説明する。Next, the sprayer 3 will be explained based on FIG. 2.
外周に防熱材２０が配置された同心円伏の管の中心部に
極低温液化ガス燃料流路２１、その周りに冷却・圧縮空
気流路２２が形成され、管の先端には、冷却圧縮空気ノ
ズル２３と極低温液化ガス燃料ノズル２４とをもつノズ
ル金物２５、ノズル金物２５の先端には、混合ノスル２
６、混合ノズル２６と連通した噴霧ノズル２γを有する
ノズルチップ２８が取り付けられ、冷却圧縮空気ノズル
２３と極低温液化ガス燃料ノズル２４とは混合ノズル２
６で開口している。A cryogenic liquefied gas fuel channel 21 is formed in the center of a concentric tube with a heat insulating material 20 arranged on the outer periphery, a cooling/compressed air channel 22 is formed around it, and a cooling compressed air nozzle is formed at the tip of the tube. 23 and a cryogenic liquefied gas fuel nozzle 24, a nozzle metal fitting 25 has a mixing nozzle 2 at the tip.
6. A nozzle chip 28 having a spray nozzle 2γ communicating with the mixing nozzle 26 is attached, and the cooling compressed air nozzle 23 and the cryogenic liquefied gas fuel nozzle 24 are connected to the mixing nozzle 2
It opens at 6.
極低温液化ガス燃料タンク１より加圧ポンプ２にて加圧
された極低温液化ガス燃料は、圧力調整弁１０にて所定
の圧力に調整された後、一部は冷却・除湿器５に、また
残りは噴霧器３に圧送される。The cryogenic liquefied gas fuel pressurized from the cryogenic liquefied gas fuel tank 1 by the pressurizing pump 2 is adjusted to a predetermined pressure by the pressure regulating valve 10, and then a part is sent to the cooling/dehumidifier 5. The remaining amount is sent under pressure to the atomizer 3.
冷却・除湿器５に圧送された極低温液化ガス燃料は蒸発
して、気化燃料４としてガスバーナ６に圧送され燃焼炉
８内にて燃焼する。The cryogenic liquefied gas fuel fed under pressure to the cooling/dehumidifier 5 evaporates and is fed under pressure to a gas burner 6 as vaporized fuel 4, where it is burned in a combustion furnace 8.
噴霧用空気は空気圧縮機４にて加圧され、空気圧力調整
弁により所定の圧力に調整された後冷却・除湿器５にて
冷却・除湿され、低温脱湿圧縮空気として噴霧器に圧送
される。The air for spraying is pressurized by an air compressor 4, adjusted to a predetermined pressure by an air pressure regulating valve, cooled and dehumidified by a cooling/dehumidifier 5, and then sent under pressure to a sprayer as low-temperature dehumidified compressed air. .
燃焼用空気は送風機７により風箱９に圧送され燃焼炉８
内に流入する。Combustion air is forced into a wind box 9 by a blower 7 and then sent to a combustion furnace 8.
flow inside.
極低温液化ガス燃料流路２１は冷却圧縮空気流露２２で
取巻かれており、極低温液化ガス燃料は低温脱湿圧縮空
気により保冷される。The cryogenic liquefied gas fuel passage 21 is surrounded by a cooling compressed air stream 22, and the cryogenic liquefied gas fuel is kept cool by the low-temperature dehumidified compressed air.
極低温液化ガス燃料は極低温燃料ノズル２４を西って混
合ノズル２６に圧送される。The cryogenic liquefied gas fuel is pumped west through the cryogenic fuel nozzle 24 to the mixing nozzle 26 .
又、低温脱湿圧縮空気（噴霧用圧縮空気）は冷却圧縮空
気ノズル２３により混合ノズル２６へ流入する。Further, the low-temperature dehumidified compressed air (compressed air for spraying) flows into the mixing nozzle 26 through the cooled compressed air nozzle 23 .
混合ノズル２６での圧力は低温脱湿圧縮空気の圧力を変
える事により可変であり、極低温液化ガス燃料の流量は
混合ノズル２６での圧力（低温脱湿圧縮空気の圧力と同
意）と極低温液化ガス燃料の圧力の差を調整する事によ
り可変である。The pressure at the mixing nozzle 26 is variable by changing the pressure of the low-temperature dehumidified compressed air, and the flow rate of the cryogenic liquefied gas fuel is the same as the pressure at the mixing nozzle 26 (same as the pressure of the low-temperature dehumidified compressed air) and the cryogenic temperature. It is variable by adjusting the pressure difference of liquefied gas fuel.
混合ノズル２６に流入した低温脱湿圧縮空気と極低温液
化ガス燃科は噴霧ノズル２７を西って燃焼炉８に噴出さ
れる。The low-temperature dehumidified compressed air and cryogenic liquefied gas fuel that have flowed into the mixing nozzle 26 are jetted westward through the spray nozzle 27 into the combustion furnace 8 .
本装置によれば、第３図に示す如く、噴霧空気圧が増大
するほど燃料噴射量は減少する。According to this device, as shown in FIG. 3, the fuel injection amount decreases as the spray air pressure increases.
したがって、極低温液化ガス燃料の圧力を一定とし、冷
却圧縮空気の圧力を変化させることにより燃焼量を容易
に変化させることが出来るので、極低温液化ガス燃料の
燃焼量は燃焼圧を一定にして噴霧用空気圧を変化させる
事により可変である事から、極低温液化ガス燃料の圧力
低下による蒸気閉塞が防止され、高温の燃焼用空気並び
に火炎の熱輻射により加熱されやすい極低温液化ガス燃
料を低温の噴霧用空気で取巻いた事から、当該燃料の温
度上昇による蒸気閉塞が防止でき、又除湿した圧縮空気
を用いる事から、混合ノズル部での水分の凝結による閉
塞が防止できるとの結果が得られ安定燃焼が可能となる
。Therefore, the combustion amount of cryogenic liquefied gas fuel can be easily changed by keeping the pressure of cryogenic liquefied gas fuel constant and changing the pressure of the cooling compressed air. Since it is variable by changing the atomizing air pressure, it prevents vapor blockage due to a pressure drop in the cryogenic liquefied gas fuel, and reduces the cryogenic liquefied gas fuel, which is easily heated by high-temperature combustion air and flame heat radiation, to a low temperature. The results showed that by surrounding the fuel with atomizing air, it was possible to prevent vapor blockage due to a rise in the temperature of the fuel, and by using dehumidified compressed air, it was possible to prevent blockage due to moisture condensation at the mixing nozzle. This enables stable combustion.
第１図は本発明の１実施例の態様例を示すブロツク線図
、第２図は第１図中の噴霧器３の正面断面図、第３図は
噴霧空気圧と燃料の噴射量との関係を示すグラフである
。
１・・・・・・極低混液化ガス燃料タンク、２・・・・
・・加圧ポンプ、３・・・・・・噴霧器、４・・・・・
・空気圧縮機、５・・・・・・冷却除湿器、６・・・・
・・ガスバーナ、７・・・・・・送風機８・・・・・・
焼却炉、９・・・・・・風箱、１０・・・・・・圧力調
整弁，１１・・・・・・空気圧力調整弁、１２・・・・
・・排出管、２０・・・・・・防熱材、２１・・・・・
・極低温液化ガス燃料流路、２２・・・・・・冷却圧縮
空気流路、２３・／・冷却圧縮空気ノズル、２４・・・
・・・極低温液化ガス燃科ノズル、２５・・・・・・ノ
ズル金物、２６・・・・・・混合ノズル、２７・・・・
・・噴霧ノズル、２８・・・・・・ノズルチップ。Fig. 1 is a block diagram showing an example of an embodiment of the present invention, Fig. 2 is a front sectional view of the atomizer 3 in Fig. 1, and Fig. 3 shows the relationship between the atomizing air pressure and the fuel injection amount. This is a graph showing. 1... Extremely low mixed liquefaction gas fuel tank, 2...
...Pressure pump, 3...Sprayer, 4...
・Air compressor, 5... Cooling dehumidifier, 6...
...Gas burner, 7...Blower 8...
Incinerator, 9... wind box, 10... pressure regulating valve, 11... air pressure regulating valve, 12...
...Exhaust pipe, 20...Heat insulation material, 21...
- Cryogenic liquefied gas fuel channel, 22... Cooling compressed air channel, 23... Cooling compressed air nozzle, 24...
... Cryogenic liquefied gas combustion nozzle, 25... Nozzle hardware, 26... Mixing nozzle, 27...
...Spray nozzle, 28...Nozzle tip.
Claims (1)
同抽出した液化ガス燃料で圧縮空気を冷却するとともに
湿分を除去した後前記噴霧器に供給し、同噴霧器から冷
却、除湿された圧縮空気を噴霧媒体として前記液化ガス
燃料を噴霧して燃焼させることを特徴とする液化ガス燃
料の燃焼方法。 ２ 噴霧器に供給される液化ガス燃料の１部を抽出し、
同抽出した液化ガス燃料で圧縮空気を冷却するとともに
湿分を除去した後前記噴霧器に供給し、同噴霧器内では
、前記液化ガス燃料の噴射圧を一定に保ち、噴霧媒体の
前記冷却・除湿後の圧縮空気の圧力を変化きせて前記噴
霧器から噴霧して燃焼させることを特徴とする液化ガス
燃料の燃焼方法。[Claims] 1. Extracting a part of the liquefied gas fuel supplied to the atomizer,
After cooling the compressed air with the extracted liquefied gas fuel and removing moisture, the compressed air is supplied to the atomizer, and the liquefied gas fuel is atomized and combusted using the cooled and dehumidified compressed air from the atomizer as an atomizing medium. A liquefied gas fuel combustion method characterized by: 2 extracting a portion of the liquefied gas fuel supplied to the atomizer;
The extracted liquefied gas fuel is used to cool the compressed air and remove moisture before supplying it to the atomizer, where the injection pressure of the liquefied gas fuel is kept constant and after the cooling and dehumidification of the spray medium. A method for burning liquefied gas fuel, characterized in that the pressure of compressed air is varied and the fuel is sprayed from the atomizer and combusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8387177A JPS587126B2 (en) | 1977-07-13 | 1977-07-13 | How to burn liquefied gas fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8387177A JPS587126B2 (en) | 1977-07-13 | 1977-07-13 | How to burn liquefied gas fuel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5419225A JPS5419225A (en) | 1979-02-13 |
| JPS587126B2 true JPS587126B2 (en) | 1983-02-08 |
Family
ID=13814715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8387177A Expired JPS587126B2 (en) | 1977-07-13 | 1977-07-13 | How to burn liquefied gas fuel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS587126B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60154839A (en) * | 1984-01-24 | 1985-08-14 | Nissan Motor Co Ltd | Production of nut |
| KR101059019B1 (en) | 2009-09-07 | 2011-08-23 | 여은석 | Dehumidification unit of the combustion device |
-
1977
- 1977-07-13 JP JP8387177A patent/JPS587126B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5419225A (en) | 1979-02-13 |
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