Water vapor high-temperature catalytic photolysis oxyhydrogen large-proportion energy replacement system and method

Abstract

The system comprises a steam generation system, a heat exchange system, an injection system and a photolysis chamber, heat generated at the tail of the photolysis chamber replaces energy of the steam generation system, and the steam generation system, the heat exchange system, the injection system and the photolysis chamber are connected through pipelines. According to the invention, oxyhydrogen clean combustion is used for replacing 50% of fuels such as petrifaction and the like, so that the emission of harmful substances is greatly reduced, a great contribution is made to the realization of a dual-carbon target by wide-range application, and the problems of emission and environmental protection exceeding of an existing combustion technology are solved; about 50% of original fossil energy is replaced by heat energy generated by oxyhydrogen combustion, carbon dioxide emission is directly reduced by more than 50%, nitrogen oxide is reduced by more than 60%, and the pressure of combustion on environmental pollution is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the field of energy combustion technology, and in particular to a system and method for high-proportion energy replacement of hydrogen and oxygen by high-temperature catalytic photolysis of water vapor. Background Art

[0002] Industrial boilers are commonly used thermal energy equipment in industrial production, which can convert energy into thermal energy to provide various equipment that need heating in the production process. However, traditional industrial boilers use traditional fossil energy such as coal and oil as fuel, which not only has the problem of high carbon emissions, but also aggravates air pollution. Therefore, replacing traditional energy with clean energy is one of the important contemporary energy conservation and emission reduction measures.

[0003] Clean energy alternatives include: 1. Solar water heating system: Solar water heating system is an alternative to using solar energy to heat water for industrial boilers. By installing solar collectors, solar energy is converted into thermal energy to heat water, reducing dependence on traditional energy and achieving the use of clean energy.

[0004] 2. Biomass energy: By using renewable resources such as waste, agricultural biomass and wood as fuel to replace traditional fossil fuels, it can effectively reduce carbon emissions and reduce environmental pollution. In addition, biomass energy also has the advantage of sustainable use and can effectively solve the problem of energy shortage.

[0005] 3. Hydrogen energy: Hydrogen energy is a clean energy. The only waste produced by combustion is water vapor. There is no pollutant emission and it is environmentally friendly. Industrial boilers can be transformed to use hydrogen energy for combustion to achieve clean energy substitution.

[0006] However, when hydrogen energy is used as a substitute, the applicant has found that the prior art has at least the following technical problems: 1. Existing similar photolytic metals are not resistant to high temperatures and are easily oxidized, and oxidize rapidly at around 1000 degrees; 2. Existing similar photolytic metals are not corrosion-resistant, which limits the choice of fuel types; 3. Existing technologies cannot be comprehensively utilized to replace existing fuels in large proportions, resulting in poor economic efficiency. Summary of the invention

[0007] The purpose of the present invention is to provide a system and method for replacing large proportions of energy by high-temperature catalytic photolysis of hydrogen and oxygen using water vapor, so as to solve the technical problems in the prior art that the existing fuel cannot be replaced in large proportions and the economy is poor.

[0008] To achieve the above object, the present invention provides the following technical solutions: The water vapor high-temperature catalytic photolysis of hydrogen and oxygen in large proportion energy replacement system provided by the present invention comprises a steam generation system, a heat exchange system (a heat exchange pipeline is coiled in a photolysis chamber at 950°C to heat the water vapor in the pipeline to 500°C), an injection system and a photolysis chamber, the heat generated at the tail of the photolysis chamber replaces the energy of the steam generation system, and the steam generation system, the heat exchange system, the injection system (the high-temperature water vapor with a temperature of 500°C is sucked into the pipeline by the siphon effect at a distance of 10CM from the burner mouth and uniformly injected into the photolysis chamber) and the photolysis chamber are connected by a pipeline.

[0009] Furthermore, a liquid catalyst inlet is provided at the end of the pipeline between the steam generating system and the heat exchange system, and the liquid catalyst is mixed with steam at a mass ratio of 1:100 and then enters the injection system.

[0010] Furthermore, the liquid catalyst is composed of the following components in parts by weight: 5 to 10 parts of titanium dioxide, 5 to 15 parts of aluminum powder, 2 to 6 parts of copper oxide, 70 to 85 parts of water, and 15 to 25 parts of suspension.

[0011] Furthermore, the catalytic mixture is added to the high-temperature water vapor and enters the 1000℃ furnace through the injection system. When it encounters the photolytic metal, it instantly decomposes hydrogen and oxygen to participate in combustion, achieving the result of replacing the original energy.

[0012] Furthermore, the photolysis chamber is made of a metal alloy, and an inorganic crystal ceramic glaze coating is also provided on the surface of the metal alloy.

[0013] Furthermore, the inorganic crystal ceramic glaze coating has strong light transmittance and high temperature resistance, the coating thickness is less than 0.1 mm, and it can withstand a high temperature of 1800 degrees, solving the problem of acid and alkali corrosion resistance.

[0014] Furthermore, the alloy is composed of 45-60 parts of tungsten alloy, 10-15 parts of chromium alloy, 10-15 parts of hafnium alloy, 10-15 parts of nickel alloy, and 10-20 parts of rhenium alloy.

[0015] Furthermore, the tungsten alloy composition is 85%W5%Ni10%Fe, the nickel alloy is X1NiCrMoCu, the rhenium alloy is W-Re15%, the chromium alloy is 50CrMoCuFe, and the hafnium alloy is Ta4HfC5.

[0016] Furthermore, high-temperature resistant rhenium alloy and hafnium alloy are added to the metal alloy in the photolysis chamber, which can solve the problem of high-temperature resistance and oxidation resistance of photolysis metal.

[0017] Furthermore, the metal alloy in the photolysis chamber generates light waves of 300 to 700 nanometers.

[0018] The present invention also provides an energy replacement method for a large-proportion energy replacement system of water vapor high-temperature catalytic photolysis of hydrogen and oxygen, the method being as follows: The steam generated by the steam generation system enters the pipeline and enters the heat exchange system to heat the mixed steam to 500°C. It is mixed with the liquid catalyst when passing through the pipeline of the liquid catalyst inlet, and the mixed steam is evenly sprayed into the 950°C photolysis chamber through the injection system. The metal alloy in the photolysis chamber generates 300-700 nanometer light waves. Under the action of strong light and catalyst, the high-temperature steam is cracked into hydrogen and oxygen. At the same time, the hydrogen and oxygen burn instantly at the tail of the photolysis chamber to release heat, replacing 50% of the fuel of the original boiler.

[0019] Based on the above technical solution, the embodiments of the present invention can at least produce the following technical effects: (1) Stability: The metal alloy in the photolysis chamber solves the problems of high temperature resistance, oxidation resistance, and acid corrosion resistance; (2) Economical: The alloy in the photolysis chamber does not crystallize, requires low maintenance for a long time, and only needs to be replaced after more than 4 years. The proportion of alternative fuels is high, which makes the promotion, application and operation costs of the patented technology low and the economic benefits high. The minimum replacement of the original energy (fuel oil, natural gas) is 48.2%, and the maximum replacement of the original energy is 59.73%, with obvious economic benefits. (3) Safety and applicability: The hydrogen-oxygen combustion process involved in the present invention does not require storage and transportation, which solves the current problems of low safety, complex operation and maintenance, and high cost of hydrogen-oxygen combustion in industrial and civilian fields, and is conducive to user acceptance and social promotion. Application tests in coal and biomass combustion scenarios have shown that the technology can be fully applied to the above application combustion scenarios to achieve ideal application energy replacement effects; (4) Environmentally friendly: The application of the present invention replaces 50% of petrochemical fuels with clean combustion of hydrogen and oxygen, greatly reducing the emission of harmful substances. Large-scale application will make a significant contribution to the realization of the "dual carbon goals" and overcome the emission and environmental protection problems of existing combustion technologies. The heat energy generated by hydrogen and oxygen combustion replaces about 50% of the original fossil energy, directly reducing carbon dioxide emissions by more than 50% and nitrogen oxides by more than 60%, greatly reducing the pressure of combustion on environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 is a system schematic diagram of an embodiment of the present invention; In the figure: 1. heat exchange system; 2. catalyst inlet; 3. injection system; 4. photolysis chamber; 5. steam generation system; 6. steam energy consumption end. DETAILED DESCRIPTION

[0022] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0023] In the description of the present application, it should be noted that some of the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application; unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0024] Example 1: Used as a substitute for coal in boilers Steam generating system is boiler The present invention provides a system and method for high-temperature catalytic photolysis of water vapor for large-proportion hydrogen and oxygen energy replacement: like Figure 1 As shown, it includes a steam generating system 5, a heat exchange system 1, an injection system 3 and a photolysis chamber 4. The heat generated at the tail of the photolysis chamber 4 replaces the energy of the steam generating system 5. The steam generating system 5, the heat exchange system 1, the injection system 3 and the photolysis chamber 4 are connected by pipelines.

[0025] In this embodiment, a catalyst inlet 2 is further provided on the pipeline between the steam generating system 1 and the heat exchange system 2. The catalyst and steam are mixed in a mass ratio of 1:100 and then enter the heat exchange system 1 for heat exchange.

[0026] In this embodiment, the liquid catalyst is composed of the following components in parts by weight: 5-10 parts of titanium dioxide, 5-15 parts of aluminum powder, 2-6 parts of copper oxide, 70-85 parts of water, and 15-25 parts of suspension.

[0027] In this embodiment, the photolysis chamber 4 is made of a metal alloy, and an inorganic crystal ceramic glaze coating is also provided on the surface of the metal alloy.

[0028] In this embodiment, the alloy is composed of 45-60 parts of tungsten alloy, 10-15 parts of chromium alloy, 10-15 parts of hafnium alloy, 10-15 parts of nickel alloy, and 10-20 parts of rhenium alloy.

[0029] In this embodiment, the metal alloy of the photolysis chamber 4 generates light waves of 300 to 700 nanometers.

[0030] The method is as follows: The steam generated by the steam generation system 5 enters the pipeline, mixes with the liquid catalyst when passing through the pipeline of the catalyst inlet 2, and enters the heat exchange system 1. The heat exchange system 1 heats the temperature of the mixed steam to 500°C, and evenly sprays the mixed steam into the 950°C photolysis chamber 4 through the injection system 3. The metal alloy in the photolysis chamber 4 generates 300-700 nanometer light waves. Under the action of strong light and catalyst, the steam is cracked into hydrogen and oxygen. At the same time, the hydrogen and oxygen burn instantly at the tail of the photolysis chamber 4, releasing heat to enter the steam energy end 6, replacing 50% of the fuel of the original boiler.

[0031] Example 2: Biomass energy replacement in boilers Steam generating system is boiler The present invention provides a system and method for high-temperature catalytic photolysis of water vapor for large-proportion hydrogen and oxygen energy replacement: like Figure 1 As shown, it comprises a steam generating system (5), a heat exchange system (1), an injection system (3) and a photolysis chamber (4), wherein the heat generated at the tail end of the photolysis chamber (4) replaces the energy of the steam generating system, and the steam generating system (5), the heat exchange system (1), the catalyst (2), the injection system (3) and the photolysis chamber (4) are connected by pipelines.

[0032] In this embodiment, a liquid catalyst inlet 2 is further provided on the pipeline between the heat exchange system 1 and the injection system 3, and the liquid catalyst is mixed with steam in a mass ratio of 1:100 and then enters the injection system.

[0033] In this embodiment, the liquid catalyst is composed of the following components in parts by weight: 5-10 parts of titanium dioxide, 5-15 parts of aluminum powder, 2-6 parts of copper oxide, 70-85 parts of water, and 15-25 parts of suspension.

[0034] In this embodiment, the photolysis chamber 4 is made of a metal alloy, and an inorganic crystal ceramic glaze coating is also provided on the surface of the metal alloy.

[0035] In this embodiment, the alloy is composed of 45-60 parts of tungsten alloy, 10-15 parts of chromium alloy, 10-15 parts of hafnium alloy, 10-15 parts of nickel alloy, and 10-20 parts of rhenium alloy.

[0036] In this embodiment, the metal alloy of the photolysis chamber 4 generates light waves of 300 to 700 nanometers.

[0037] The method is as follows: the steam generated by the steam generation system 5 enters the heat exchange system 1 and is heated to 500°C. It is mixed with the liquid catalyst when passing through the pipeline of the catalyst inlet 2, and enters the injection system 3 to evenly spray the high-temperature mixed steam into the 950°C photolysis chamber 4. The metal alloy in the photolysis chamber 4 generates 300-700 nanometer light waves. Under the action of strong light and catalyst, the steam is cracked into hydrogen and oxygen. At the same time, the hydrogen and oxygen are instantly burned at the tail of the photolysis chamber 4, releasing heat, and enter the steam energy end 6, replacing 50% of the fuel of the original boiler.

[0038] The application of the present invention replaces 50% of petrochemical fuels with hydrogen-oxygen clean combustion, greatly reducing the emission of harmful substances. Large-scale application will make a significant contribution to the realization of the "dual carbon goals" and overcome the problems of emissions and environmental protection exceeding the existing combustion technology; the minimum replacement of the original energy (fuel oil, natural gas) is 48.2%, and the maximum replacement of the original energy is 59.73%, with obvious economic benefits; the heat energy generated by hydrogen-oxygen combustion replaces about 50% of the original fossil energy, directly reducing carbon dioxide emissions by more than 50%, reducing nitrogen oxides by more than 60%, and greatly reducing the pressure of combustion on environmental pollution.

[0039] Example 3: The boiler can be replaced by other steam generating devices In this embodiment, the liquid catalyst is composed of the following components in parts by weight: 5 to 10 parts of titanium dioxide, 5 to 15 parts of aluminum powder, 2 to 6 parts of copper oxide, and 70 to 85 parts of water.

[0040] The structures, functions and connection forms disclosed in this article can be implemented in other ways. For example, the embodiments described above are only exemplary, for example, multiple components can be combined or integrated into another component; in addition, each functional component in each embodiment of this article can be integrated into one functional component, or each functional component can exist physically separately, or two or more functional components can be integrated into one functional component.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A water vapor high temperature catalytic photolysis hydrogen and oxygen large proportion energy replacement system, characterized in that: The invention comprises a steam generating system (5), a heat exchange system (1), an injection system (3) and a photolysis chamber (4), wherein the heat generated at the tail of the photolysis chamber (4) replaces the energy of the steam generating system, and the steam generating system (5), the heat exchange system (1), the catalyst inlet (2), the injection system (3) and the photolysis chamber (4) are connected by pipelines.

2. The high-temperature catalytic photolysis of water vapor for hydrogen and oxygen in large proportion energy replacement system according to claim 1, characterized in that: A catalyst inlet (2) is also provided on the pipeline between the heat exchange system (1) and the injection system (3). The catalyst and steam are mixed at a mass ratio of 1:100 and then enter the injection system (3) for heat exchange.

3. The water vapor high temperature catalytic photolysis hydrogen and oxygen large proportion energy replacement system according to claim 2 is characterized in that: The catalyst is composed of the following components in parts by weight: 5-10 parts of titanium dioxide, 5-15 parts of aluminum powder, 2-6 parts of copper oxide, 70-85 parts of water, and 15-25 parts of suspension.

4. The high-temperature catalytic photolysis of water vapor for hydrogen and oxygen in large proportion energy replacement system according to claim 1, characterized in that: The photolysis chamber (4) is made of a metal alloy, and an inorganic crystal ceramic glaze coating is also provided on the surface of the metal alloy.

5. The high-temperature catalytic photolysis of water vapor for hydrogen and oxygen in large proportion energy replacement system according to claim 4, characterized in that: The alloy consists of 45 to 60 parts of tungsten alloy, 10 to 15 parts of chromium alloy, 10 to 15 parts of hafnium alloy, 10 to 15 parts of nickel alloy and 10 to 20 parts of rhenium alloy.

6. The high-temperature catalytic photolysis of water vapor for hydrogen and oxygen in large proportion energy replacement system according to claim 4, characterized in that: The metal alloy of the photolysis chamber (4) generates light waves of 300 to 700 nanometers.

7. The energy replacement method of the water vapor high temperature catalytic photolysis hydrogen and oxygen large proportion energy replacement system according to any one of claims 1 to 6, characterized in that: The method is as follows: The steam generated by the steam generation system (5) enters the heat exchange system (2) and is heated to 500°C. The steam is mixed with the liquid catalyst when passing through the pipeline of the liquid catalyst inlet (2). The steam enters the injection system (3) and is uniformly injected into the photolysis chamber (4) at 950°C. The metal alloy in the photolysis chamber (4) generates 300-700 nanometer light waves. Under the action of strong light and catalyst, the steam is cracked into hydrogen and oxygen. At the same time, the hydrogen and oxygen are burned instantaneously at the tail of the photolysis chamber (4), releasing heat and replacing 50% of the fuel of the original boiler.

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