A far-infrared molecule activation-based gas pretreatment device

Abstract

The utility model discloses a kind of gas pretreatment devices based on far infrared molecule activation, mainly related to gas energy-saving emission reduction technical field. Including flat box, the box includes rectangular frame, the two sides of the frame are covered with box plate respectively, the inner wall of one or two box plates is equipped with the radiation layer with infrared emission ability, the box is equipped with the air inlet channel, the mixed flow channel and the air outlet channel in sequence The beneficial effects of the utility model are that: being installed at gas air outlet, the molecular activation of town gas passing through structure can be carried out, the combustion efficiency is improved, and energy-saving emission reduction is realized.

Description

Technical Field

[0001] This utility model relates to the field of gas energy conservation and emission reduction technology, specifically a gas pretreatment device based on far-infrared molecular activation. Background Technology

[0002] The main component of natural gas is methane (CH4). Methane molecules have a tetrahedral structure, with a carbon atom at the center and four hydrogen atoms at the four vertices. This structure makes methane molecules relatively stable, but it also affects their combustion reactivity to some extent. From a chemical bonding perspective, the carbon-hydrogen bonds (C−H) in methane molecules have specific bond energies, with a bond length of approximately 1.09 Å and a bond energy of approximately 413 kJ / mol. In traditional combustion processes, breaking these chemical bonds to achieve complete combustion requires a relatively high energy input. Furthermore, due to van der Waals forces between molecules, gas molecules tend to aggregate into clusters, making it difficult for the internal molecules to fully contact and react with oxygen. This is one of the important reasons for incomplete combustion, energy waste, and pollutant emissions.

[0003] Far-infrared molecular activation technology was developed specifically to address these issues. Far-infrared radiation is a type of electromagnetic wave with a wavelength range of 6.2-20 μm. According to the electron gas theory model in quantum mechanics, the electron potential caused by van der Waals forces is approximately 0.06-0.2 eV. The kinetic energy of far-infrared photons in this wavelength range provides sufficient energy to overcome the potential energy within this range, allowing electrons trapped in the van der Waals field to be resonantly excited and escape, thereby breaking up hydrocarbon molecular clusters. On the other hand, the infrared absorption spectrum of organic chemistry shows that the carbon-hydrogen saturated covalent bonds (C−H) in hydrocarbon molecules can resonantly absorb photons with wavelengths of 3.2-3.6 μm. By selecting specific far-infrared materials to radiate far-infrared radiation in a specific wavelength range, a series of positive effects can be achieved on gaseous molecules. On the one hand, the efficient far-infrared radiation in the 6.2-20μm band can break down gaseous molecules, making them easier to form into tiny particles and reducing the surface tension of the liquid (for liquefied petroleum gas and other liquefied fuels). This makes them easier to vaporize upon heating during combustion, allowing for more uniform mixing with oxygen and improving the completeness of combustion. On the other hand, the far-infrared radiation in the 3.2-6.2μm band can resonantly excite the bond energy of gaseous molecules. During combustion, only a small amount of thermal energy is needed to break the covalent bonds between carbon-hydrogen and carbon-carbon molecules, causing them to recombine into carbon dioxide and water vapor, releasing energy. This not only lowers the flash point of the gas and promotes vaporization, but also improves combustion efficiency and reduces exhaust gases produced by incomplete combustion, thus reducing pollution emissions.

[0004] Japanese patent application JP2002310015A, entitled "Engine Air Intake Device," describes an air-activating material made from mineral powders such as tourmaline and naturally occurring radioactive rare earth elements. The radioactive element formulation in this technology could pose a certain degree of harm to human health and the environment during manufacturing and use.

[0005] The U.S. patent application with publication number US20040056208A1, entitled "Apparatus, Device, System and Method for Employing Far-Infrared Radiation and Negative Ions", provides materials that can emit far-infrared radiation and negative ions, which can be used in internal combustion engine combustion, natural gas combustion, water purification, etc. The core materials are mainly bioceramics, as well as ceramic products sintered from oxides such as silicon dioxide and alumina. The process equipment is complex, the cost is high, and it is inconvenient to promote.

[0006] The US patent application "Ozone and Air Ion Generator for Internal Combustion Engine Intake" (US20050126550A1) describes a technology that uses 2.8-5.0 kV AC power to generate ozone and negative ions to enhance combustion in an internal combustion engine. However, these technologies all come at the cost of consuming large amounts of electrical energy, which greatly limits their application.

[0007] Therefore, although current technology has provided reliable theoretical support for the technology of far-infrared molecular activation of gas, the corresponding equipment has not yet been implemented, and the problem of incomplete combustion of gas energy has not been widely solved. Utility Model Content

[0008] The purpose of this invention is to provide a gas pretreatment device based on far-infrared molecular activation. It is installed at the gas outlet and can activate the molecules of natural gas passing through the structure, thereby improving combustion efficiency and providing higher energy-saving efficiency and exhaust emission reduction efficiency.

[0009] To achieve the above objectives, this utility model employs the following technical solution: A gas pretreatment device based on far-infrared molecular activation includes a flat box body with a rectangular frame. The two sides of the frame are covered with box panels. One or two box panels have a radiation layer with infrared emission capability on their inner walls. The box body has an air inlet channel, a mixing channel and an air outlet channel connected in sequence.

[0010] The air intake channel and / or air outlet channel includes three parallel straight channels, and the three straight channels are connected end to end to form a serpentine shape.

[0011] The air intake channel and / or air outlet channel includes a first grille, a second grille, and a third grille. An air intake connector or an air outlet connector that is sealed to the housing is provided between the first grille and the frame. A first adapter is provided between the first grille and the second grille, and a second adapter is provided between the second grille and the third grille. The first adapter and the second adapter are respectively located at both ends of the second grille.

[0012] The housing also includes a first mixing chamber, a second mixing chamber, and a third mixing chamber. The mixing channel includes a D-channel, an E-channel, a F-channel, and a G-channel arranged in parallel between the intake channel and the exhaust channel. The D-channel and E-channel are connected to the intake channel in parallel through the first mixing chamber. The F-channel and G-channel are connected to the exhaust channel in parallel through the second mixing chamber. The ends of the D-channel, E-channel, F-channel, and G-channel that are furthest from the first mixing chamber are all connected to the third mixing chamber.

[0013] The mixing channel includes a partition plate centrally located in the center of the housing. Symmetrical flow dividers are arranged on both sides of the partition plate. One flow divider is adjacent to the third grille plate of the intake channel, forming a D-channel. The other flow divider is adjacent to the third grille plate of the exhaust channel, forming a G-channel. The partition plate and the flow dividers on both sides respectively form E-channel and F-channel. One end of the flow divider and the partition plate has a third gap with the frame, thus forming a third mixing chamber. The end of the flow divider away from the third mixing chamber has a second gap with the frame. The third grille plate has a first gap at this end. The second gap and the first gap on the same side of the partition plate form a first mixing chamber / second mixing chamber.

[0014] An electric heating plate is installed on the outside of a box panel with a radiant layer, and the heating temperature of the electric heating plate does not exceed 80 degrees Celsius.

[0015] The frame includes two long side plates and two short side plates. The air inlet and air outlet are located at both ends of the short side plate on one side. The air inlet channel, the mixing channel and the air outlet channel are arranged horizontally side by side relative to the long side.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This device uses a sealed enclosure to treat natural gas with far-infrared radiation. By extending the channel length, slowing the flow rate, and mixing the flow, it increases the activation level of the gas, ensuring that the gas molecules are uniformly and fully activated. This promotes complete combustion, reduces the amount of incomplete combustion waste such as carbon monoxide, effectively improves the combustion quality of natural gas, significantly reduces energy costs, and substantially reduces harmful gas emissions. This is of great significance for environmental protection and energy conservation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the open state of this utility model.

[0018] Figure 2 This is a top view of the internal structure of this utility model.

[0019] Figure 3 This is a schematic diagram of a flow guide plate with enhanced mixing structure.

[0020] Figure 4 This is a schematic diagram of a deflector with cutouts.

[0021] The labels shown in the attached diagram: 1. Frame; 2. Box panel; 3. First grille; 4. Second grille; 5. Third grille; 6. First mixing chamber; 7. Second mixing chamber; 8. Third mixing chamber; 9. Heating plate; 10. Guide plate; 11. Transition side; 12. Partition plate; 13. Diverter plate; 14. Inlet connector; 15. Outlet connector; 16. Connecting pipe; 17. T-joint. Detailed Implementation

[0022] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application. Example

[0023] The box includes a sealed structure. The box adopts a flat rectangular box structure. The box includes a rectangular frame 1. Box panels 2 are sealed and fixed on both sides of the frame 1. The two box panels 2 together with the frame 1 form a closed rectangular flat space.

[0024] The inner layer of the panel 2 is provided with a radiation layer capable of emitting far-infrared rays. This layer contains materials that emit far-infrared rays. Specific materials can be processed using existing technologies that can stably emit infrared rays, such as metal oxides (e.g., titanium dioxide, zirconium dioxide, chromium trioxide, ferric oxide, manganese dioxide, cobalt oxide, iron tetroxide, etc. These metal oxides or mixtures thereof, when coated on a substrate surface, emit far-infrared rays of different wavelengths upon heating), carbides, ceramic materials, etc. Most radiation layers require a certain amount of heating to activate infrared radiation. However, existing technologies also offer various materials that can achieve stable infrared emission without heating. For example, the material used in the patent "A Radiation Material That Can Efficiently Emit Far-Infrared Rays Without Heating," which includes zinc oxide, titanium dioxide, cobalt oxide, silicon dioxide, calcium carbonate, lead oxide, iron tetroxide, sodium silicate, and water, achieves a far-infrared ray emission rate of over 87%.

[0025] Furthermore, since the gas processed by this pretreatment device will directly enter the combustion chamber for combustion, an electric heating plate 9 can be added to the outside of the box plate 2. The heating temperature of the electric heating plate 9 is 38-80℃ to avoid excessively high temperature causing significant expansion of natural gas.

[0026] The frame 1 includes two long side plates and two short side plates. The adjacent long and short side plates are vertically connected and integrally formed, which can be obtained by bending technology or welding. One of the short side plates is provided with an air inlet connector 14 and an air outlet connector 15 at its two ends. The air inlet connector 14 is connected to an air inlet pipe and a connecting pipe 16 through a three-way fitting 17 with a valve. The end of the air outlet connector 15 is connected to an air outlet pipe and a connecting pipe 16 through a three-way fitting 17 with a valve. The connecting pipe 16 is a straight pipe, and its two ends are respectively connected to the three-way fitting 17, thereby forming a direct through channel between the air inlet pipe and the air outlet pipe.

[0027] The connecting pipe 16 mainly has the following two functions: 1) During use, the inlet and outlet pipes can be directly connected by controlling the valve, so that the gas no longer passes through the box and the natural gas passes directly through the connecting pipe 16. In other words, infrared activation is not performed, but it exists as part of the pipeline connected in series in the natural gas line. Spot checks can be performed at the outlet and the combustion status can be compared. 2) Install a sensor away from the inside of the box. When the pressure is too high, a small amount or part of the natural gas can be released directly through the connecting pipe 16 by controlling the valve, so as to avoid overload of the processing pressure inside the box. 3) In cases where a large flow rate is required or other situations, the natural gas entering the intake pipe can be partially activated in the tank by controlling the valve, and the other part can be mixed with the activated natural gas through the connecting pipe 16 and then sent to the combustion chamber.

[0028] The chamber is equipped with: an air inlet channel, an air outlet channel, a first mixing chamber 6, a second mixing chamber 7, a third mixing chamber 8, and a mixing channel.

[0029] For clarity, the airflow channels inside the chamber are defined as follows: channel a, channel b, channel c, channel D, channel E, channel F, channel G, channel h, channel i, and channel j, arranged in parallel.

[0030] All of the above channels are aligned with the length of the box and arranged sequentially along the width of the box to form the space inside the box.

[0031] Based on function, the intake channel consists of channels a, b, and c; the mixing channel consists of channels D, E, F, and G; and the exhaust channel consists of channels h, i, and j. The channels are described in detail below: 1) Intake channel: Channel a, channel b, and channel c are connected in a staggered manner to form an S-shaped channel. One end of channel a is sealed and connected to the intake connector 14. Both ends of channel b are connected to channel a and channel c respectively. The downstream end of channel c is connected to the first mixing chamber 6, that is, the mixing channel is connected through the first mixing chamber 6.

[0032] 2) Exhaust channel: The h channel, i channel and j channel are connected in sequence with their first and last positions staggered to form an S-shaped channel. One end of the j channel is sealed and connected to the air inlet connector 14. The two ends of the i channel are connected to the h channel and the j channel respectively. The upstream end of the i channel is connected to the second mixing chamber 7, that is, the second mixing chamber 7 is connected to the mixing channel.

[0033] 3) Mixing chamber: The third mixing chamber 8 is located on the side with the air inlet connector 14. The third mixing chamber 8 is only connected to the D channel, E channel, F channel and G channel. The first mixing chamber 6 and the second mixing chamber 7 are adjacent to each other and located on the side of the box away from the third mixing chamber 8. The first mixing chamber 6 is connected to the c channel, D channel and E channel, and the second mixing chamber 7 is connected to the F channel, G channel and h channel.

[0034] 4) Mixing Channels: Channels D and E are connected to the intake channel via the first mixing chamber 6, enabling the gas from the intake channel to be split into two parallel streams. Simultaneously, channels F and G are connected to the outlet channel via the second mixing chamber 7, allowing the gas to mix and converge into the single S-shaped outlet channel. Furthermore, the gas flowing in the mixing channels can freely mix and stagnate within the third mixing chamber 8, achieving buffering and free mixing during flow.

[0035] In terms of specific structural composition, the above channels are separated by grid strips fixed inside the box. The two sides of the grid strips are sealed and fixed to the inner wall of the box panel 2. Therefore, the structure of the above channels is described as follows.

[0036] 1) Intake and exhaust channels. These are symmetrically arranged within the housing, each in an S-shape, extending the channel length within a limited space and allowing for longer gas travel time. Structurally, they are formed by a first grille plate 3, a second grille plate 4, and a third grille plate 5, which, together with the housing body, enclose the intake and exhaust channels. All three grille plates are parallel to the long side panels. Because the intake and exhaust channels are symmetrical, the first grille plate 3, the second grille plate 4, and the third grille plate 5 are symmetrically arranged relative to the housing body.

[0037] The first grille plate 3, the second grille plate 4 and the third grille plate 5 are arranged side by side at equal intervals. The second grille plate 4 is located between the third grille plate 5 and the first grille plate 3. The first grille plate 3 is located near the frame 1 (long side plate). The air inlet connector 14 is located between one first grille plate 3 and the frame 1. The air outlet connector 15 is located between another first grille plate 3 and the frame 1.

[0038] One end of the first grille plate 3 is connected to the frame 1 which is provided with an air inlet connector 14 and an air outlet connector 15, forming a connection with the air inlet connector 14 or the air outlet connector 15.

[0039] The other end of the first grille plate 3 is provided with a first adapter interface between it and the frame 1. The second grille plate 4 is sealed to the frame 1 at one end near the first adapter interface, and the other end of the second grille plate 4 is provided with a second adapter interface between it and the frame 1. The third grille plate 5 is sealed to the frame 1 at one end adjacent to the second adapter interface, and the third grille plate 5 has a first gap at one end away from the air intake connector 14.

[0040] 2) The mixing channel is structurally composed of a flow divider 13 and a partition plate 12.

[0041] The partition plate 12 is fixed in the center of the box, and the diversion plate 13 consists of two pieces and is symmetrically arranged on both sides of the partition plate 12.

[0042] The splitter plate 13, the partition plate 12, and the third grille plate 5 are arranged equidistantly side by side. The splitter plate 13 and the third grille plate 5 of the intake channel form a D channel; the two sides of the partition plate 12 form an E channel and an F channel with the splitter plate 13, respectively; the splitter plate 13 and the third grille plate 5 of the exhaust channel form a G channel.

[0043] One end of the partition plate 12 is fixedly connected to the short side away from the air inlet. The diverter plate 13 and the end of the partition plate 12 near the air inlet connector 14 have a third gap with the frame 1, thus forming a third mixing chamber 8. The third mixing chamber 8 connects the same end of the D, E, F, and G channels, realizing buffering and mixing of multiple air channels, further reducing the speed, and increasing the residence time of the gas in the box.

[0044] The end of the flow divider away from the intake connector has a second gap with the frame. The adjacent second gap and the first gap form a first mixing chamber / second mixing chamber. The first mixing chamber and the second mixing chamber are separated on both sides by a partition plate. The first mixing chamber connects the two channels (DE) in parallel to the intake channel, and the second mixing chamber connects the two channels (FG) in parallel to the outlet channel, respectively realizing the diversion and convergence of airflows during connection. The diversion slows down the flow rate and prolongs the residence time.

[0045] Based on this device, after the gas is connected to the inlet connector, it flows through the inlet connector → channel a → first adapter → channel b → second adapter → channel c → first mixing chamber → channel D and channel E for diversion → channel F and channel G for mixing → channel h → channel i → channel j → outlet connector. This completes the flow within the chamber, extending the channel length in the inlet channel, reducing the flow velocity through diversion and mixing in the middle section, and integrating in the outlet channel. This achieves thorough molecular activation (preheating) of the natural gas, significantly improving combustion efficiency, promoting complete combustion, and resulting in energy saving and emission reduction.

[0046] Based on the above structure, if an auxiliary heating plate 9 is added, to improve the uniformity of heat distribution and further enhance fluid turbulence, slits are provided at equal intervals on the flow divider plate 13. These slits are located on the side closest to the heating plate 9, and parallel guide plates 10 are provided on both sides of each slit. The guide plates 10 are inclined towards adjacent channels along the flow direction, and the flow dividers 13 on adjacent slits are inclined in opposite directions. This creates opposing flow paths between two adjacent slits, allowing the airflow near the heat source to mix more effectively between the two channels. This promotes uniform gas processing, increases the contact time and area between the gas and infrared rays, improves heat transfer efficiency, and helps to heat and activate the gas more quickly.

[0047] The guide plate 10 is relatively short, and the protrusions on both sides of the diverter plate 13 are not obvious. A wedge-shaped transition side 11 is provided between the diverter plate 13 and the side of the cut to avoid forming dead angles and not affect the flow.

[0048] By controlling the valves at both ends of the connecting pipe with tee fittings, we tested the combustion efficiency of activated natural gas and untreated natural gas passing directly through the connecting pipe. This indicator is a core metric for measuring natural gas utilization efficiency. To accurately determine the effect of far-infrared molecular activation technology on improving natural gas combustion efficiency, a rigorous comparative experimental method is typically employed. During the experiment, all combustion conditions are kept consistent, including key parameters such as combustion chamber structure, temperature, pressure, and air supply. Combustion tests are conducted on unactivated natural gas and natural gas treated with far-infrared molecular activation technology. During the test, various high-precision instruments are used to accurately measure key parameters. A calorimeter accurately measures the total heat released during combustion, and a gas flow meter accurately measures the volume of natural gas consumed. Simultaneously, based on the chemical reaction equation, the heat that should be released for complete combustion of natural gas is theoretically calculated, and this is used as a benchmark to calculate the actual combustion efficiency. Extensive experimental data and in-depth analysis show that the combustion efficiency of natural gas treated with far-infrared molecular activation technology can typically be improved by 7%-25%. This significant improvement means that, while meeting the same energy demand, the amount of natural gas used can be significantly reduced, effectively lowering energy costs. In addition, reducing natural gas consumption can also reduce the negative environmental impact of energy production and transportation, resulting in significant economic and environmental benefits.

[0049] In summary, this device, through its simplified internal grid structure and far-infrared radiation activation treatment of molecules, allows them to directly enter the combustion chamber, promoting complete combustion. The content of incomplete combustion products, such as carbon monoxide, produced by activated natural gas is reduced by 30%-80% compared to unactivated natural gas. This effectively improves the combustion quality of natural gas and significantly reduces harmful gas emissions, which is of vital importance for environmental protection and air quality improvement.

[0050] The specific application of this preheating device is as follows: A certain cooperative company uses natural gas as its primary fuel throughout its plant. Currently, all of the plant's heat source equipment has undergone far-infrared molecular activation technology upgrades. Before the upgrade, the plant's 4-ton gas-fired boiler had low combustion efficiency, resulting in significant energy waste and increased production costs. Furthermore, incomplete combustion led to pollutant emissions that put pressure on the environment.

[0051] During the modification process, far-infrared molecular activation technology was applied, including the installation of a quantum cascade resonance device, a gradient composite radiator, and a dynamic combustion field control system. The quantum cascade resonance device can precisely excite specific vibrational modes of gas molecules, enhancing their activity and making them more readily react with oxygen. The gradient composite radiator promotes gas-air mixing and improves combustion efficiency through efficient far-infrared radiation. The dynamic combustion field control system monitors various parameters during the combustion process in real time and precisely controls combustion according to actual conditions, ensuring the air-fuel ratio is always at its optimal state.

[0052] After the upgrade, significant energy savings were achieved, with an energy efficiency rate of 15%. This means that the plant can save a substantial amount of gas costs annually under normal production conditions. Far-infrared molecular activation technology played a crucial role in this process. The combustion reaction became more vigorous and complete, reducing losses from incomplete combustion. Highly efficient far-infrared radiation promoted uniform mixing of gas and air, providing favorable conditions for complete combustion, further optimizing the combustion process and improving energy efficiency.

Claims

1. A gas pretreatment device based on far-infrared molecular activation, characterized in that, The device includes a flat enclosure with a rectangular frame. The two open sides of the frame are covered with panels. One or two panels have an infrared-emitting radiating layer on their inner walls. The enclosure contains a sequentially connected air intake channel, a mixing channel, and an air exhaust channel. Each air intake and / or exhaust channel includes a first grille, a second grille, and a third grille. An air intake or exhaust connector, sealingly connected to the enclosure, is located between the first grille and the frame. A first adapter is located between the first and second grilles, and a second adapter is located between the second and third grilles. The first and second adapters are respectively located at opposite ends of the second grille. The mixing channel includes a partition plate centrally located in the center of the housing. Symmetrical flow dividers are arranged on both sides of the partition plate. One flow divider is adjacent to the third grille plate of the intake channel, forming a D-channel. The other flow divider is adjacent to the third grille plate of the exhaust channel, forming a G-channel. The partition plate and the flow dividers on both sides respectively form E-channel and F-channel. One end of the flow divider and the partition plate has a third gap with the frame, thus forming a third mixing chamber. The end of the flow divider away from the third mixing chamber has a second gap with the frame. The third grille plate has a first gap at this end. The second gap and the first gap on the same side of the partition plate form a first mixing chamber / second mixing chamber.

2. The gas pretreatment device based on far-infrared molecular activation according to claim 1, characterized in that, The air intake channel and / or air outlet channel includes three parallel straight channels, and the three straight channels are connected end to end to form a serpentine shape.

3. The gas pretreatment device based on far-infrared molecular activation according to claim 1, characterized in that, The housing also includes a first mixing chamber, a second mixing chamber, and a third mixing chamber. The mixing channel includes a D-channel, an E-channel, a F-channel, and a G-channel arranged in parallel between the intake channel and the exhaust channel. The D-channel and E-channel are connected to the intake channel in parallel through the first mixing chamber. The F-channel and G-channel are connected to the exhaust channel in parallel through the second mixing chamber. The ends of the D-channel, E-channel, F-channel, and G-channel that are furthest from the first mixing chamber are all connected to the third mixing chamber.

4. The gas pretreatment device based on far-infrared molecular activation according to claim 1, characterized in that, An electric heating plate is installed on the outside of a box panel with a radiant layer, and the heating temperature of the electric heating plate does not exceed 80 degrees Celsius.

5. The gas pretreatment device based on far-infrared molecular activation according to claim 1, characterized in that, The frame includes two long side plates and two short side plates. The air inlet and air outlet are located at both ends of the short side plate on one side. The air inlet channel, the mixing channel and the air outlet channel are arranged horizontally side by side relative to the long side.

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