TW202130946A - Boiler combustion system - Google Patents

Abstract

A boiler combustion system is provided to overcome the problem of low combustion efficiency caused by incomplete combustion of fuel. The boiler combustion system includes a furnace having a combustion space, a fuel supply unit and a hydrogen-oxygen mixing unit. The fuel supply unit and the hydrogen-oxygen mixing unit intercommunicate with the combustion space. The hydrogen-oxygen mixing unit is used to mix hydrogen and oxygen in a volume ratio of 2 : 1 to produce a hydrogen-oxygen mixed gas.

Description

Boiler combustion system

The invention relates to a boiler combustion system, in particular to a boiler combustion system using dual fuels.

Boiler is a kind of energy equipment that provides heat source. In principle, it uses water and thermal coal in the boiler to burn and heat the heating material, so that the heating material absorbs heat and can be used directly or indirectly for various operations. For example, the system can turn the water in the boiler into water vapor, and the water vapor will generate pressure in the enclosed space in the boiler. When the pressure is higher, the temperature will increase, and it can push the steam turbine to link the generator to generate electricity. In other words, products such as heat and pressure produced by the boiler can be used as energy sources for various operations. Generally speaking, oil is used as the fuel for boiler combustion. However, fuel oil is prone to incomplete combustion, which results in low boiler combustion efficiency.

In view of this, the conventional boiler combustion system does still have to be improved.

In order to solve the above-mentioned problems, the purpose of the present invention is to provide a boiler combustion system that can improve boiler combustion efficiency.

The directionality described in the full text of the present invention or its similar terms, such as "front", "rear", "left", "right", "up (top)", "down (bottom)", "inner", "outer" , "Side", etc., mainly refer to the directions of the attached drawings, and the terms of directionality or similar terms are only used to assist in the description and understanding of the embodiments of the present invention, and are not intended to limit the present invention.

The elements and components described in the full text of the present invention use the quantifiers "one" or "one" for convenience and to provide the general meaning of the scope of the present invention; in the present invention, it should be construed as including one or at least one, and single The concept of also includes the plural, unless it clearly implies other meanings.

The boiler combustion system of the present invention includes: a combustion furnace having a combustion space; a fuel supply unit connected to the combustion space; and a oxyhydrogen gas mixing unit connected to the combustion space, and the oxyhydrogen gas mixing unit is used to Hydrogen and oxygen are mixed at a volume ratio of 2:1 to form a hydrogen-oxygen mixed gas.

According to this, the boiler combustion system of the present invention uses the hydrogen and oxygen gas mixing unit to form hydrogen and oxygen into a specific ratio of hydrogen and oxygen mixed gas for auxiliary combustion, which can make the fuel easier to vaporize and reduce exhaust heat. In turn, it achieves the effect of improving the combustion efficiency of the boiler. In addition, by combining the hydrogen-oxygen mixed gas with the fuel to carry out the combustion reaction, the fuel can be completely burned and the fuel combustion efficiency can be improved, thereby reducing the amount of fuel used while maintaining the same combustion efficiency. It can reduce carbon emissions when fuel is burned, save energy consumption, reduce the generation of greenhouse effect and improve air quality.

Wherein, the combustion space has an atomization module, and the fuel supply unit is connected to the atomization module of the combustion space. In this way, the fuel can be atomized, which has the effect of improving the combustion efficiency of the fuel.

Wherein, it further includes an electrolysis water unit connected to the hydrogen and oxygen gas mixing unit, and the electrolysis water unit is used to electrolyze water to form hydrogen and oxygen. In this way, water can be used as the source of hydrogen and oxygen to form pure hydrogen and pure oxygen, which has the effect of accurately controlling the ratio of hydrogen and oxygen.

Wherein, the electrolyzed water unit supplies hydrogen and oxygen to the hydrogen and oxygen gas mixing unit through a flow adjustment module. In this way, it has the effect of accurately controlling the ratio of hydrogen and oxygen.

Wherein, the hydrogen and oxygen gas mixing unit is used for mixing hydrogen and air to form a hydrogen and oxygen mixed gas with a volume ratio of hydrogen and oxygen of 2:1. In this way, the system has a cost-saving effect.

In order to make the above and other objectives, features and advantages of the present invention more comprehensible, the following describes the preferred embodiments of the present invention in conjunction with the accompanying drawings in detail as follows:

Please refer to Figure 1, which is an embodiment of the boiler combustion system of the present invention, which includes a combustion furnace 1, a fuel supply unit 2 and a hydrogen and oxygen gas mixing unit 3, the fuel supply unit 2 and the hydrogen oxygen The gas mixing unit 3 is connected to the combustion furnace 1 so that the oxyhydrogen gas mixing unit 3 can supply a mixed gas of oxyhydrogen into the combustion furnace 1 for combustion reaction with the fuel supplied by the fuel supply unit 2.

In detail, the combustion furnace 1 may be a conventional boiler and has a combustion space S, and the combustion space S can be used to supply fuels such as oil for combustion reaction. For example, the combustion space S may have an ignition device such as an igniter, In this way, a combustion reaction is initiated on the fuel oil to heat the heating materials such as water and hot coal in the boiler, and products such as heat energy or pressure are generated for use as an energy source. In this embodiment, the combustion furnace 1 can be supplied with working liquid such as water from a storage tank W to be heated in the combustion furnace 1 to generate water vapor, heat or pressure. In addition, the combustion furnace 1 can be supplied with fuel oil. The fuel is equalized so that the combustion furnace 1 can undergo a combustion reaction to heat the above-mentioned working fluid. The combustion furnace 1 may additionally have an atomization module 11, and the atomization module 11 may be located in the combustion space S to atomize the fuel input into the combustion space S to improve the combustion efficiency of the fuel. The atomization module 11 may be, for example, a high-pressure pump or a steam mixing device to atomize the fuel, which is not limited in the present invention.

The fuel supply unit 2 can be, for example, a fuel tank. The fuel tank can be connected to the combustion furnace 1 through a fuel delivery pipe 21 so that fuel can be input to the combustion furnace 1. Preferably, the fuel delivery pipeline 21 can be connected to the combustion furnace 1. The atomization module 11 of the combustion furnace 1 thereby atomizes the fuel input into the combustion furnace 1 so that the fuel can be dispersed in the combustion space S in the form of oil mist, thereby improving the combustion efficiency of the fuel.

The oxyhydrogen gas mixing unit 3 mixes hydrogen and oxygen to form a oxyhydrogen mixed gas to supply the oxyhydrogen mixed gas to the combustion furnace 1. In detail, the specific heat of hydrogen is low, so it can quickly reach the required high temperature. In addition, the flame temperature generated when hydrogen is combusted is higher, and the theoretical air-fuel ratio is low, which makes the fuel easier to vaporize. During the combustion reaction, the fuel can be burned more completely. Oxygen itself is non-flammable and can be used as a good combustion promoter. Therefore, by mixing the hydrogen and oxygen to form the hydrogen-oxygen mixed gas, the hydrogen can be The oxygen-mixed gas is supplied to the combustion furnace 1 to assist in the combustion of the fuel oil, which has the effect of helping the fuel to be completely combusted. In this embodiment, Taguchi’s experiment shows that when hydrogen and oxygen are mixed at a volume ratio of 2:1 to form the hydrogen-oxygen mixture, and the fuel is combusted and reacted, it has the best combustion efficiency. In addition, the oxyhydrogen gas mixing unit 3 can be connected to the combustion space S of the combustion furnace 1 through a gas pipeline 31 to supply the oxyhydrogen mixed gas to the combustion space S of the combustion furnace 1 for combustion reaction. Thereby, the hydrogen-oxygen mixed gas and the fuel oil forming the oil mist can be fully mixed in the combustion space S and undergo a combustion reaction together, which has the effect of improving the combustion efficiency of the combustion furnace 1.

The hydrogen and oxygen in the oxyhydrogen gas mixing unit 3 can be separately produced by electrolyzing an aqueous solution. For example, the hydrogen and oxygen can be produced by an electrolysis water unit 4, and the water electrolysis unit 4 can be It is used to electrolyze water to form hydrogen and oxygen, and supply them to the oxyhydrogen gas mixing unit 3. In detail, the electrolysis water unit 4 can pass direct current into the positive and negative terminals in the water, thereby making the positive electrode Generate oxygen, generate hydrogen at the negative electrode, and use water as the source of hydrogen and oxygen to form pure hydrogen and pure oxygen, which has the function of accurately controlling the ratio of hydrogen and oxygen. For example, a 380, 415, or 440 volt power source can be used to convert a transformer to direct current and electrolyze water into high-purity hydrogen and oxygen, thereby providing the hydrogen and oxygen required by the oxyhydrogen gas mixing unit 3 to be mixed. In addition, the electrolyzed water unit 4 can supply hydrogen and oxygen to the oxyhydrogen gas mixing unit 3 through a flow adjustment module 41. The flow adjustment module 41 can be, for example, a proportional control valve or a flow meter to reduce the hydrogen The volume ratio to oxygen is 2; the flow rate of 1 is supplied to the oxyhydrogen gas mixing unit 3 to mix to form the oxyhydrogen mixed gas, which has the effect of accurately controlling the ratio of hydrogen and oxygen.

In addition, as in other embodiments, it is possible to chemically react magnesium with water to generate hydrogen, and air to provide the oxygen, thereby mixing the hydrogen and air to form the hydrogen-oxygen mixed gas, which is cost-saving effect. Among them, the air stably contains about 20% oxygen. Therefore, the volume of hydrogen and air supplied to the oxyhydrogen gas mixing unit 3 can also be adjusted to form the ratio of hydrogen and oxygen in the oxyhydrogen gas mixing unit 3 for mixing. The formation of the hydrogen-oxygen mixed gas is understood by those skilled in the art, and will not be repeated here.

When the boiler combustion system of the present invention is in operation, the fuel can be input to the combustion space S of the combustion furnace 1, and the oxyhydrogen gas mixing unit 3 forms the oxyhydrogen mixed gas to be supplied to the combustion space S, thereby , The hydrogen-oxygen mixed gas and fuel oil can be combusted together to heat the working liquid of the combustion furnace 1 to produce products that can be used directly or indirectly as energy.

In summary, the boiler combustion system of the present invention uses the hydrogen and oxygen gas mixing unit to form hydrogen and oxygen into a specific ratio of hydrogen and oxygen mixed gas for auxiliary combustion, which can make the fuel easier to gasify and reduce exhaust gas. Heat loss, thereby achieving the effect of improving the combustion efficiency of the boiler. In addition, by combining the hydrogen-oxygen mixed gas with the fuel to carry out the combustion reaction, the fuel can be completely burned and the fuel combustion efficiency can be improved, thereby reducing the amount of fuel used while maintaining the same combustion efficiency. It can reduce carbon emissions when fuel is burned, save energy consumption, reduce the generation of greenhouse effect and improve air quality.

Although the present invention has been disclosed using the above-mentioned preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with the art without departing from the spirit and scope of the present invention may make various changes and modifications relative to the above-mentioned embodiments. The technical scope of the invention is protected. Therefore, the scope of protection of the invention shall be subject to the scope of the attached patent application.

1: Burning furnace 11: Atomization module 2: Fuel supply unit 21: oil pipeline 3: Hydrogen and oxygen gas mixing unit 31: Gas pipeline 4: Electrolyzed water unit 41: Flow adjustment module W: liquid storage tank S: burning space

[Figure 1] Architecture diagram of an embodiment of the present invention.

1: Burning furnace

11: Atomization module

2: Fuel supply unit

21: oil pipeline

3: Hydrogen and oxygen gas mixing unit

31: Gas pipeline

4: Electrolyzed water unit

41: Flow adjustment module

W: liquid storage tank

S: burning space

Claims (5)

A boiler combustion system, including: A combustion furnace with a combustion space; A fuel supply unit connected to the combustion space; and A oxyhydrogen gas mixing unit is connected to the combustion space, and the oxyhydrogen gas mixing unit is used to mix hydrogen and oxygen at a volume ratio of 2:1 to form a hydrogen-oxygen mixed gas. Such as the boiler combustion system of claim 1, wherein the combustion space has an atomization module, and the fuel supply unit is connected to the atomization module of the combustion space. For example, the boiler combustion system of claim 1 or 2 further includes an electrolyzed water unit connected to the hydrogen and oxygen gas mixing unit, and the electrolyzed water unit is used to electrolyze water to form hydrogen and oxygen. Such as the boiler combustion system of claim 3, wherein the electrolyzed water unit supplies hydrogen and oxygen to the oxyhydrogen gas mixing unit through a flow adjustment module. Such as the boiler combustion system of claim 1 or 2, wherein the hydrogen and oxygen gas mixing unit is used to mix hydrogen and air to form a hydrogen and oxygen mixed gas with a volume ratio of hydrogen and oxygen of 2:1.

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