JP2018173258A - Premixed combustion device - Google Patents

Premixed combustion device Download PDF

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Publication number
JP2018173258A
JP2018173258A JP2017082387A JP2017082387A JP2018173258A JP 2018173258 A JP2018173258 A JP 2018173258A JP 2017082387 A JP2017082387 A JP 2017082387A JP 2017082387 A JP2017082387 A JP 2017082387A JP 2018173258 A JP2018173258 A JP 2018173258A
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Japan
Prior art keywords
hydrogen gas
combustion
liquid fuel
premixed
mixer
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JP2017082387A
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Japanese (ja)
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正志 小池
Masashi Koike
正志 小池
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Sima E & W Co Ltd
Sima E&w
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Sima E & W Co Ltd
Sima E&w
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Priority to JP2017082387A priority Critical patent/JP2018173258A/en
Publication of JP2018173258A publication Critical patent/JP2018173258A/en
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Abstract

PROBLEM TO BE SOLVED: To freely adjust a mixture ratio of hydrogen gas in liquid fuel, to enable combustion, and increase the mixture ratio of the hydrogen gas to make combustion efficiency of the liquid fuel approach 100%, thereby attaining clean combustion.SOLUTION: A premixed combustion device of the claim 1 is characterized in that a premixed burner is configured to mix liquid fuel and hydrogen gas and combust them; between a combustion nozzle for combusting premixed fuel and a liquid fuel feeding pump, provided is a mixer having a connection pipe provided continuously to the combustion nozzle and configured to supply hydrogen gas; and combustion can be performed with a ratio of gas-liquid mixture freely adjusted without generating cavitation of a pump.SELECTED DRAWING: Figure 1

Description

本発明は、液体燃料と水素ガスの混合燃焼方法における、予混合燃焼装置に関するものである。The present invention relates to a premixed combustion apparatus in a mixed combustion method of liquid fuel and hydrogen gas.

近年、石油資源の枯渇化から、水素ガスを利用したクリーンエネルギー利用の研究開発が行われている。しかし、液体燃料に水素ガスを添加して燃焼装置で燃焼する場合、気液混合するにあたり、気液混合ミキサー、ポンプ等を使用する為に水素ガスの混合比率が５％〜８％と限度がある。In recent years, research and development on the use of clean energy using hydrogen gas has been carried out due to the depletion of petroleum resources. However, when hydrogen gas is added to liquid fuel and combusted in a combustion device, the mixing ratio of hydrogen gas is limited to 5% to 8% in order to use a gas-liquid mixing mixer, pump, etc. is there.

予混合燃焼装置について、特開２０１７−００２３４６号公報や特開２０１５−０４５０３２号公報のように水素、酸素混合燃焼装置が提案されている。As for the premixed combustion apparatus, hydrogen and oxygen mixed combustion apparatuses have been proposed as disclosed in Japanese Patent Application Laid-Open No. 2017-002346 and Japanese Patent Application Laid-Open No. 2015-045032.

しかし、液体燃料に水素ガスを添加して混合燃焼した場合、液体燃料に占める水素ガスの混合割合が安定して混合出来るのは気液混合ミキサー等を使用する為に５％前後であるため、気液混合燃料としては未解決な部分があった。However, when hydrogen gas is added to liquid fuel and mixed and burned, the mixing ratio of hydrogen gas in the liquid fuel can be stably mixed because it is around 5% because a gas-liquid mixing mixer is used. There was an unsolved part as a gas-liquid mixed fuel.

本発明は、液体燃料に水素ガスの混合比率を自由に調整して、燃焼出来るようにし、水素ガスの混合比率を高め、液体燃料の燃焼効率を１００％に近付けクリーンな燃焼をすることが課題である。It is an object of the present invention to freely adjust the mixing ratio of hydrogen gas to liquid fuel so that it can be burned, increase the mixing ratio of hydrogen gas, and bring the combustion efficiency of liquid fuel close to 100% for clean combustion It is.

本発明は上記のような点に鑑みたもので、上記の課題を解決するために、請求項１のように、液体燃料と水素ガスを混合して燃焼する予混合バーナーにあって、前記予混合燃料を燃焼する燃焼ノズルと液体燃料送給ポンプの間に燃焼ノズルに連接した水素ガスを供給する接続管を有する混合器を設け、ポンプのキャビテーションを発生することなく気液混合の比率を自由に調整して、燃焼出来るようにしたことを特徴とする予混合燃焼装置を提供することにある。In order to solve the above-described problems, the present invention provides a premix burner for mixing and burning liquid fuel and hydrogen gas as described in claim 1, and A mixer with a connecting pipe that supplies hydrogen gas connected to the combustion nozzle is installed between the combustion nozzle that burns the mixed fuel and the liquid fuel feed pump, and the ratio of gas-liquid mixing can be freely set without generating pump cavitation. An object of the present invention is to provide a premixed combustion apparatus characterized in that combustion can be performed by adjusting to the above.

本発明は水素ガスを液体燃料に気液混合し、燃焼装置で燃焼する場合、気液混合するにあたり、気液混合ミキサー等を使用しない為に水素ガスの必要量を予混合燃焼装置に供給することができ、液体燃料のクリーンな燃焼ができる。In the present invention, when hydrogen gas is gas-liquid mixed with liquid fuel and combusted in the combustion device, the required amount of hydrogen gas is supplied to the premixing combustion device in order to avoid gas-liquid mixing mixer etc. And clean combustion of liquid fuel.

予混合燃料を燃焼する燃焼ノズルと液体燃料送給ポンプの間に燃焼ノズルに連接した水素ガスを供給する接続管を有する混合器を設け、ポンプのキャビテーションを起さず供給できるようにしたことを特徴としている。A mixer having a connecting pipe for supplying hydrogen gas connected to the combustion nozzle is provided between the combustion nozzle for burning the premixed fuel and the liquid fuel feed pump so that the pump can be supplied without causing cavitation of the pump. It is a feature.

図１は、本発明の実施例を示すもので、液体燃料は液体燃料タンク（３）より流量計（４）ポンプ（５）電磁バルブ（６）を通り混合器（２）に連接している。FIG. 1 shows an embodiment of the present invention. Liquid fuel is connected from a liquid fuel tank (3) to a mixer (2) through a flow meter (4), a pump (5) and an electromagnetic valve (6). .

又、水素ガスは水素ガス発生装置（７）より流量計（８）加圧ポンプ（９）電磁バルブ（１０）逆止弁（１１）を通り混合器（２）に連接している。混合器（２）で液体燃料と水素ガスを予混合し、バーナーノズル（１）より噴霧し点火プラグ（１３）により点火する。The hydrogen gas is connected to the mixer (2) from the hydrogen gas generator (7) through the flow meter (8), the pressure pump (9), the electromagnetic valve (10) and the check valve (11). Liquid fuel and hydrogen gas are premixed in the mixer (2), sprayed from the burner nozzle (1), and ignited by the spark plug (13).

本発明は、液体燃料利用分野における、乾燥設備、農業用温室の加温、温水ボイラー、蒸気ボイラー等の燃焼用に広く利用できる。INDUSTRIAL APPLICABILITY The present invention can be widely used for drying equipment, heating of agricultural greenhouses, combustion of hot water boilers, steam boilers and the like in the field of liquid fuel utilization.

特開２０１７−００２３４６号公報JP 2017-002346 A 特開２０１５−０４５０３２号公報Japanese Patent Laying-Open No. 2015-045032

本発明のフローシート図Flow sheet diagram of the present invention 本発明のノズルの詳細図Detailed view of the nozzle of the present invention

１．バーナーノズル
２．混合器
３．液体燃料タンク
４．流量計
５．ポンプ
６．電磁バルブ
７．水素ガス発生装置
８．流量計
９．加圧ポンプ
１０．電磁バルブ
１１．逆止弁
１２．スリット
１３．点火プラグ1. 1. Burner nozzle 2. Mixer 3. Liquid fuel tank 4. Flow meter Pump 6. 6. Solenoid valve Hydrogen gas generator 8. 8. Flow meter Pressurizing pump 10. Electromagnetic valve 11. Check valve 12. Slit 13. Spark plug

Claims (4)

液体燃料と水素ガスを混合して燃焼する予混合バーナーにあって、前記予混合燃料を燃焼する燃焼ノズルと液体燃料送給ポンプの間に燃焼ノズルに連接した水素ガスを供給する接続管を有する混合器を設け、ポンプのキャビテーションを発生することなく気液混合の比率を自由に調整して、燃焼出来るようにしたことを特徴とする予混合燃焼装置。  A premix burner for mixing and burning liquid fuel and hydrogen gas, and having a connecting pipe for supplying hydrogen gas connected to the combustion nozzle between the combustion nozzle for burning the premixed fuel and the liquid fuel feed pump A premixed combustion apparatus provided with a mixer and capable of combustion by freely adjusting the ratio of gas-liquid mixing without generating pump cavitation. 液体燃料と水素ガスを混合して燃焼する予混合バーナーにあって、予混合燃料を燃焼する燃焼ノズルに連接した水素ガスを供給する接続管を有した混合器の流路内に旋回流を起こす螺旋状のスリットを備えた混合器を設けることを特徴とする請求項１に記載の予混合燃焼装置。  A premix burner that mixes and burns liquid fuel and hydrogen gas, and causes a swirl flow in the flow path of the mixer having a connecting pipe that supplies hydrogen gas connected to a combustion nozzle that burns the premixed fuel. The premixed combustion apparatus according to claim 1, further comprising a mixer having a spiral slit. 液体燃料と水素ガスを混合して燃焼する予混合バーナーにあって、水素ガスの供給圧力を液体燃料の供給圧力と同圧にするために水素ガスの供給ラインに加圧ポンプを設けることを特徴とする請求項１に記載の予混合燃焼装置。  A premix burner for mixing and burning liquid fuel and hydrogen gas, wherein a pressure pump is provided in the hydrogen gas supply line to make the hydrogen gas supply pressure the same as the liquid fuel supply pressure. The premixed combustion apparatus according to claim 1. 液体燃料と水素ガスを混合して燃焼する予混合バーナーにあって、水素ガスの供給ラインに逆止弁を設けることを特徴とする請求項１に記載の予混合燃焼装置  2. The premixed combustion apparatus according to claim 1, wherein the premixed burner is a premix burner for mixing and burning liquid fuel and hydrogen gas, wherein a check valve is provided in the hydrogen gas supply line.
JP2017082387A 2017-03-31 2017-03-31 Premixed combustion device Pending JP2018173258A (en)

Priority Applications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022173025A (en) * 2021-05-07 2022-11-17 Ｓｉｍａ Ｅ＆Ｗ株式会社 Premixed combustion device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022173025A (en) * 2021-05-07 2022-11-17 Ｓｉｍａ Ｅ＆Ｗ株式会社 Premixed combustion device

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