Device for synthesizing carbon nanomaterial through continuous gas-phase detonation and control method thereof

Abstract

The invention relates to the technical field of nano material preparation, in particular to a device for synthesizing a carbon nano material through continuous gas phase detonation and a control method thereof.The device for synthesizing the carbon nano material through continuous gas phase detonation comprises a gas explosion system, a gas injection system and a collection system, hydrocarbon combustible gas and oxygen explode in a detonation cavity, and the gas explosion system is connected with the gas injection system; when explosion occurs, hydrocarbon combustible gas reacts with oxygen to generate carbon nanopowder, the gas supply pump is used for supplying gas into the detonation cavity, the gas supplied into the detonation cavity by the gas supply pump does not react with the combustible gas and the oxygen, the gas entering the detonation cavity carries the carbon nanopowder to be separated from the detonation cavity, and the filter cartridge collects the carbon nanopowder. In addition, after the carbon nanopowder is prepared for the first time, the detonation tube is pumped to be in a vacuum state again through the vacuum piece, and therefore continuous preparation of the carbon nanopowder is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of nanomaterial preparation, and particularly to a continuous gas-phase detonation synthesis carbon nanomaterial device and a control method thereof. Background Art

[0002] When preparing nanomaterials, the gas-phase detonation method, as a way to prepare nanomaterials by the explosion of combustible gases, has significant advantages such as high efficiency, convenience, and environmental friendliness. However, traditional gas-phase detonation synthesis devices only support the single detonation preparation of nanomaterials. In the specific operation process, after one detonation, it is necessary to wait for the nanometer powder to naturally precipitate onto the detonation tube wall, and then rely on manual operation to open the detonation tube to collect the nanometer powder. This operation mode makes the whole preparation process lack continuity, with relatively low efficiency, and unable to fully utilize the high-efficiency and convenient advantages originally possessed by the gas-phase detonation method. In addition, industrial production often requires materials to be continuously and stably prepared and automatically collected to meet a large amount of market demand and high production rhythm. However, the characteristics of manual collection and single preparation of traditional gas-phase detonation synthesis devices greatly limit the expansion of the gas-phase detonation method in the industrial application of carbon nanomaterials, making it difficult to meet the requirements of modern industrial production and unable to achieve greater value in the industry. Summary of the Invention

[0003] The present invention provides a continuous gas-phase detonation synthesis carbon nanomaterial device and a control method thereof to solve the problem that the existing gas-phase detonation synthesis device cannot efficiently prepare nanometer powder.

[0004] The following technical solutions are adopted for the continuous gas-phase detonation synthesis carbon nanomaterial device and the control method thereof of the present invention:

[0005] A continuous gas-phase detonation synthesis carbon nanomaterial device includes a gas explosion system, a gas injection system, and a collection system.

[0006] The gas explosion system includes a detonation tube and a vacuum component; the interior of the detonation tube has a detonation chamber; the detonation chamber is used to provide a gas explosion environment; the vacuum component is used to ensure that the detonation chamber is in a vacuum state; the gas injection system is used to supply hydrocarbon combustible gas and oxygen to the detonation chamber in a vacuum state; an ignition component is provided on the detonation tube, and the ignition component is used to ignite when the hydrocarbon combustible gas and oxygen in the detonation chamber reach a preset concentration; the collection system includes a gas supply pump and a filter cartridge, the gas supply pump is used to supply gas to the detonation chamber, and the gas supplied by the gas supply pump to the detonation chamber does not react with the hydrocarbon combustible gas and the oxygen; the filter cartridge is communicated with the detonation chamber, and the gas transported by the gas supply pump to the detonation chamber can carry carbon nanotube powder into the filter cartridge together, and the filter cartridge can collect the carbon nanotube powder in the detonation chamber.

[0007] Further, the vacuum component includes a first sealing plate, a second sealing plate and a piston plate. The first sealing plate is fixedly and sealingly arranged at one end of the detonation tube. The second sealing plate is fixedly and sealingly arranged at the other end of the detonation tube. A vent hole is provided on the second sealing plate. The piston plate is slidably and sealingly arranged in the detonation chamber. A driving rod is connected to the piston plate, and the driving rod penetrates through the second sealing plate through the vent hole.

[0008] Further, a plurality of connecting pipes are provided on the first sealing plate. Each connecting pipe can communicate the detonation chamber with the external environment. A control valve is provided on each connecting pipe, and the control valve can affect the conduction state of the connecting pipe.

[0009] Further, the gas injection system includes a mixing cylinder, a high-pressure oxygen tank and a high-pressure combustible gas tank. The mixing cylinder is communicated with any one of the connecting pipes. The high-pressure oxygen tank is communicated with the mixing cylinder. The high-pressure combustible gas tank is communicated with the mixing cylinder. The high-pressure combustible gas tank stores hydrocarbon combustible gas, and the hydrocarbon combustible gas and the oxygen can be mixed inside the mixing cylinder and then transported to the detonation tube.

[0010] Further, the collection system further includes a collection box and an exhaust gas processor. The collection box is communicated with any one of the connecting pipes. The filter cartridge is fixedly arranged inside the collection box. The exhaust gas processor is communicated with the collection box, and the gas entering the collection box can be discharged from the collection box through the exhaust gas processor.

[0011] Further, the gas supply pump is communicated with a nitrogen gas cylinder or an inert gas cylinder.

[0012] Further, the ignition component is a spark plug, and the spark plug has an ignition end, and the ignition end is arranged in the detonation chamber.

[0013] Further, the detonation tube can withstand the pressure of the explosion of hydrocarbon combustible gas in the detonation chamber.

[0014] Further, a water-cooling jacket is sleeved outside the detonation tube. The water-cooling jacket is spaced from the detonation tube. A cooling chamber is formed between the inner side wall of the water-cooling jacket and the outer side wall of the detonation tube, and a coolant is provided in the cooling chamber.

[0015] A control method for continuously gas-phase detonation synthesis of carbon nanomaterials, using the above-mentioned device for continuously gas-phase detonation synthesis of carbon nanomaterials, includes the following steps:

[0016] S1, adjusting the environment in the detonation chamber to a vacuum state;

[0017] S2, providing hydrocarbon combustible gas and oxygen to the detonation chamber in a vacuum state;

[0018] S3, igniting when the hydrocarbon combustible gas and oxygen in the detonation chamber reach a preset concentration;

[0019] S4, after an explosion occurs in the detonation chamber, supplying gas to the detonation chamber;

[0020] S5, filtering the gas discharged from the detonation chamber, so as to collect the carbon nano powder in the detonation chamber.

[0021] The beneficial effects of the present invention are as follows: A device for continuously gas-phase detonation synthesis of carbon nanomaterials and its control method according to the present invention. The device for continuously gas-phase detonation synthesis of carbon nanomaterials includes a gas explosion system, a gas injection system and a collection system. When preparing carbon nanomaterials, first, a vacuum part is used to extract the detonation chamber to a vacuum state. After the detonation chamber is extracted to a vacuum state, a gas injection system is used to provide hydrocarbon combustible gas and oxygen to the detonation chamber. When the hydrocarbon combustible gas and oxygen in the detonation chamber reach a preset concentration, an ignition part ignites the detonation chamber. The hydrocarbon combustible gas and oxygen explode in the detonation chamber. When an explosion occurs, the hydrocarbon combustible gas and oxygen react to generate carbon nano powder. Subsequently, a gas supply pump is used to supply gas to the detonation chamber. The gas supplied by the gas supply pump to the detonation chamber will not react with the combustible gas and oxygen. At this time, the gas entering the detonation chamber carries the carbon nano powder out of the detonation chamber, and the filter cartridge collects the carbon nano powder. During this process, there is no need for manual collection of the carbon nano powder in the detonation chamber, which improves the preparation efficiency of the carbon nano powder. In addition, after the first preparation of the carbon nano powder, the vacuum part extracts the detonation tube to a vacuum state again, so as to realize continuous preparation of the carbon nano powder.

[0022] Further, when single - shot gas - phase detonation synthesis of carbon nanomaterials is required, the vacuum component evacuates the detonation tube to a vacuum state and maintains a stable state. Subsequently, the gas injection system is used to supply hydrocarbon combustible gas and oxygen into the detonation chamber. When the hydrocarbon combustible gas and oxygen in the detonation chamber reach the preset concentration, the ignition component ignites the detonation chamber. The hydrocarbon combustible gas and oxygen explode in the detonation chamber. When the explosion occurs, the hydrocarbon combustible gas and oxygen react to form carbon nano - powder. Subsequently, an air supply pump is used to supply gas into the detonation chamber. The gas supplied by the air supply pump into the detonation chamber does not react with the combustible gas and oxygen. At this time, the gas entering the detonation chamber carries the carbon nano - powder out of the detonation chamber, and the filter cartridge collects the carbon nano - powder. During this process, there is no need for manual collection of the carbon nano - powder in the detonation chamber, thus completing the single - shot gas - phase detonation synthesis of carbon nanomaterials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following - described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 It is a structural schematic diagram of a continuous gas - phase detonation synthesis carbon nanomaterial device provided by an embodiment of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the initial state of the detonation tube and the piston plate in a continuous gas - phase detonation synthesis carbon nanomaterial device provided by an embodiment of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the inside of the detonation tube in a continuous gas - phase detonation synthesis carbon nanomaterial device provided by an embodiment of the present invention when it is in a vacuum state;

[0027] Figure 4 It is a structural schematic diagram of the inside of the detonation tube in a continuous gas - phase detonation synthesis carbon nanomaterial device provided by an embodiment of the present invention after the explosion contact;

[0028] In the figure: 110, detonation tube; 120, filter cartridge; 130, first sealing plate; 140, second sealing plate; 141, air vent hole; 150, driving rod; 160, connecting pipe; 161, control valve; 170, piston plate; 210, mixing cylinder; 220, high - pressure oxygen tank; 230, high - pressure combustible gas tank; 240, collection box; 250, waste gas processor; 260, nitrogen cylinder; 270, spark plug. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] The serial numbers assigned to the components in this article, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The "connection" and "coupling" mentioned in this application, unless otherwise specified, both include direct and indirect connection (coupling). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0031] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0032] As Figures 1 to 4 shown, a continuous gas-phase detonation synthesis carbon nanomaterial device provided by an embodiment of the present invention includes a gas explosion system, an air injection system, and a collection system.

[0033] The gas explosion system includes a detonation tube 110 and a vacuum component; a detonation cavity is provided inside the detonation tube 110, and the detonation cavity is not in communication with the external environment. The detonation cavity is used to provide a gas explosion environment. Specifically, the detonation tube 110 can withstand the pressure generated during gas explosion. The thickness of the detonation tube 110 is not less than 10 mm, the inner wall diameter is not less than 100 mm, and the aspect ratio is between 6 and 20. The detonation tube 110 is usually selected as a seamless stainless steel tube or a titanium alloy tube. The vacuum component is used to ensure that the detonation cavity is in a vacuum state. In the initial state, the inside of the detonation tube 110 is in an atmospheric pressure state. When preparing carbon nano powder, the detonation cavity is evacuated to a vacuum state.

[0034] The gas injection system is used to supply hydrocarbon combustible gas and oxygen to the detonation chamber in a vacuum state. Specifically, when the environment in the detonation chamber reaches a vacuum state, the gas injection system starts to supply hydrocarbon combustible gas and oxygen into the detonation chamber. An ignition component is provided on the detonation tube 110, and the ignition component is used to ignite when the hydrocarbon combustible gas and oxygen in the detonation chamber reach a preset concentration. Specifically, the preset concentration is a benchmark parameter set artificially. When the hydrocarbon combustible gas and oxygen reach the preset concentration in the detonation chamber, the hydrocarbon combustible gas can be ignited in the detonation tube 110 to cause an explosion phenomenon.

[0035] The collection system includes a gas supply pump and a filter cartridge 120. The gas supply pump is used to supply gas to the detonation chamber. The gas supplied by the gas supply pump to the detonation chamber does not react with the hydrocarbon combustible gas and oxygen. Further, the gas supplied by the gas supply pump to the detonation chamber does not react with the carbon nanometer powder. After the hydrocarbon combustible gas and oxygen explode in the detonation tube 110, the hydrocarbon combustible gas and oxygen can generate carbon nanometer powder. At this time, the gas supply pump supplies gas to the detonation chamber. The filter cartridge 120 is communicated with the detonation chamber. The gas transported by the gas supply pump to the detonation chamber can carry the carbon nanometer powder into the filter cartridge 120 together. The filter cartridge 120 can collect the carbon nanometer powder in the detonation chamber. Specifically, when the gas supply pump supplies gas to the detonation tube 110, the gas entering the detonation chamber gradually enters the filter cartridge 120 through the connection between the detonation tube 110 and the filter cartridge 120. The gas carries the carbon nanometer powder to the inside of the filter cartridge 120 during the flow process. The carbon nanometer powder entering the inside of the filter cartridge 120 is intercepted by the side wall of the filter cartridge 120, and the gas entering the inside of the filter cartridge 120 gradually separates from the filter cartridge 120, thereby realizing the collection of the carbon nanometer powder.

[0036] For a continuous gas-phase detonation synthesis carbon nanomaterial device of the present invention, when preparing carbon nanomaterials, first use a vacuum component to extract the detonation chamber to a vacuum state. After the detonation chamber is extracted to a vacuum state, use the gas injection system to supply hydrocarbon combustible gas and oxygen to the detonation chamber. When the hydrocarbon combustible gas and oxygen in the detonation chamber reach a preset concentration, the ignition component ignites the detonation chamber. The hydrocarbon combustible gas and oxygen explode in the detonation chamber. When an explosion occurs, the hydrocarbon combustible gas and oxygen react to generate carbon nanometer powder. Subsequently, use the gas supply pump to supply gas to the detonation chamber. The gas supplied by the gas supply pump to the detonation chamber does not react with the combustible gas and oxygen. At this time, the gas entering the detonation chamber carries the carbon nanometer powder and separates from the detonation chamber, and the filter cartridge 120 collects the carbon nanometer powder. During this process, there is no need for manual collection of the carbon nanometer powder in the detonation chamber, which improves the preparation efficiency of the carbon nanometer powder. In addition, after the first preparation of the carbon nanometer powder, the vacuum component extracts the detonation tube 110 to a vacuum state again, thereby realizing the continuous preparation of the carbon nanometer powder.

[0037] Further, when single - time gas - phase detonation synthesis of carbon nanomaterials is required, the vacuum component evacuates the detonation tube 110 to a vacuum state and maintains a stable state. Subsequently, the gas injection system is used to supply hydrocarbon combustible gas and oxygen into the detonation chamber. When the hydrocarbon combustible gas and oxygen in the detonation chamber reach a preset concentration, the ignition component ignites the detonation chamber. The hydrocarbon combustible gas and oxygen explode in the detonation chamber. When the explosion occurs, the hydrocarbon combustible gas and oxygen react to generate carbon nano - powder. Subsequently, the air supply pump is used to supply gas into the detonation chamber. The gas supplied by the air supply pump into the detonation chamber does not react with the combustible gas and oxygen. At this time, the gas entering the detonation chamber carries the carbon nano - powder and exits the detonation chamber. The filter cylinder 120 collects the carbon nano - powder. During this process, there is no need for manual collection of the carbon nano - powder in the detonation chamber, thus completing the single - time gas - phase detonation synthesis of carbon nanomaterials.

[0038] In one embodiment, the vacuum component includes a first sealing plate 130, a second sealing plate 140, and a piston plate 170. The first sealing plate 130 is fixedly and sealingly arranged at one end of the detonation tube 110. The second sealing plate 140 is fixedly and sealingly arranged at the other end of the detonation tube 110. A vent hole 141 is arranged on the second sealing plate 140. The piston plate 170 is slidably and sealingly arranged in the detonation chamber. In the initial state, the piston plate 170 is in a state of abutting against the first sealing plate 130. A driving rod 150 is connected to the piston plate 170. The driving rod 150 passes through the second sealing plate 140 through the vent hole 141. When carbon nano - powder needs to be prepared, the piston plate 170 is made to approach the second sealing plate 140 by pulling the driving rod 150. During the process of the piston plate 170 moving away from the first sealing plate 130, the detonation chamber between the first sealing plate 130 and the piston plate 170 gradually becomes a vacuum state. At this time, the hydrocarbon combustible gas and oxygen can be transported into the vacuum - state detonation chamber.

[0039] In one embodiment, a bracket and a traction cylinder are arranged in the external environment. The bracket is arranged vertically. One end of the traction cylinder is fixedly connected to the bracket. The traction cylinder is parallel to the axial direction of the driving rod 150. The other end of the traction cylinder is fixedly connected to the driving rod 150. When the length of the traction cylinder changes, through the transmission of the driving rod 150, the piston plate 170 moves in the detonation chamber.

[0040] In one embodiment, a plurality of connecting pipes 160 are provided on the first plugging plate 130. Each connecting pipe 160 can connect the detonation chamber with the external environment. Further, the axial direction of the connecting pipe 160 is arranged parallel to the axial direction of the detonation pipe 110. A control valve 161 is provided on each connecting pipe 160. The control valve 161 can affect the conduction state of the connecting pipe 160. In the initial state, the control valve 161 on each connecting pipe 160 is in a state of plugging the connecting pipe 160, and the control valve 161 on each connecting pipe 160 can be independently controlled. Further, the control valve 161 is a solenoid valve. A control board is provided on the detonation pipe 110, and the control board can control any one of the control valves 161.

[0041] In one embodiment, the gas injection system includes a mixing cylinder 210, a high-pressure oxygen tank 220, and a high-pressure flammable gas tank 230. The mixing cylinder 210 has a first intake pipe, a second intake pipe, and a first exhaust pipe. The first exhaust pipe on the mixing cylinder 210 is connected to any one of the connecting pipes 160. Oxygen is stored in the high-pressure oxygen tank 220. The high-pressure oxygen tank 220 has a first air outlet, and the first air outlet of the high-pressure oxygen tank 220 is connected to the first intake pipe, so that the oxygen stored inside the high-pressure oxygen tank 220 can be transported into the mixing cylinder 210. Hydrocarbon combustible gas is stored in the high-pressure flammable gas tank 230. The high-pressure flammable gas tank 230 has a second air outlet, and the second air outlet of the high-pressure flammable gas tank 230 is connected to the second intake pipe, so that the hydrocarbon combustible gas stored inside the high-pressure flammable gas tank 230 can be transported into the mixing cylinder 210. After the hydrocarbon combustible gas and oxygen are mixed inside the mixing cylinder 210, the mixed gas of the hydrocarbon combustible gas and oxygen inside the mixing cylinder 210 is transported into the detonation chamber through the first exhaust pipe and a connecting pipe 160. By preliminarily mixing the hydrocarbon combustible gas and oxygen, it is ensured that the hydrocarbon combustible gas and oxygen can explode smoothly when entering the detonation chamber.

[0042] In one embodiment, the collection system further includes a collection tank 240 and an exhaust gas processor 250. The collection tank 240 is connected to any one of the connecting pipes 160. The filter cartridge 120 is fixedly arranged inside the collection tank 240. Specifically, the inside of the collection tank 240 is hollow. There is an air guide pipe on the collection tank 240. One end of the air guide pipe is connected to the inside of the collection tank 240, and the other end of the air guide pipe is connected to any one of the connecting pipes 160. The filter cartridge 120 has an opening, and a plurality of filter holes are arranged on the side wall of the filter cartridge 120. The openings of the filter holes are connected to one end of the air guide pipe extending into the inside of the collection tank 240. There is a second exhaust pipe on the collection tank 240. The exhaust gas processor 250 is connected to the second exhaust pipe. The gas passing through the filter holes can enter the exhaust gas processor 250 through the second exhaust pipe, and the gas entering the collection tank 240 can be discharged from the collection tank 240 through the exhaust gas processor 250. Further, the exhaust gas processor 250 is generally a three-way catalyst or activated carbon, etc.

[0043] In one embodiment, the air supply pump is connected to a nitrogen gas cylinder 260 or an inert gas cylinder. Specifically, nitrogen gas is stored in the nitrogen gas cylinder 260, and inert gas is stored in the inert gas cylinder. The air supply pump can be started after the explosion action is completed inside the detonation tube 110. The air supply pump transports nitrogen gas or inert gas into the detonation chamber. When the nitrogen gas or inert gas enters the detonation chamber, the carbon nano powder in the detonation chamber is transported into the filter cartridge 120.

[0044] In one embodiment, the ignition component is a spark plug 270. The spark plug 270 has an ignition end, and the ignition end is arranged in the detonation chamber. When the hydrocarbon combustible gas and oxygen in the detonation chamber reach a preset concentration, the spark plug 270 ignites, causing the hydrocarbon combustible gas and oxygen to explode in the detonation chamber. When the hydrocarbon combustible gas and oxygen explode, carbon nano powder is generated.

[0045] In one embodiment, a water cooling jacket is sleeved outside the detonation tube 110. There is a gap between the water cooling jacket and the detonation tube 110. A cooling cavity is formed between the inner side wall of the water cooling jacket and the outer side wall of the detonation tube 110. There is coolant in the cooling cavity. Further, there is a water supply pipe and a drain pipe on the water cooling jacket. The water supply pipe is used to supply coolant to the cooling cavity, and the drain pipe is used to pump out the coolant in the cooling cavity. Under the combined action of the water supply pipe and the drain pipe, the coolant in the cooling cavity is in a flowing state, thereby ensuring that the coolant efficiently cools the detonation tube 110.

[0046] A control method for continuously synthesizing carbon nano materials by gas-phase detonation uses a device for continuously synthesizing carbon nano materials by gas-phase detonation, and specifically includes the following steps:

[0047] S1, adjust the environment inside the detonation chamber to a vacuum state. The vacuum detonation chamber can ensure that there are no gas impurities inside the detonation chamber and ensure that the detonation action can be smoothly completed inside the detonation chamber.

[0048] S2. Provide hydrocarbon combustible gas and oxygen into the detonation chamber in a vacuum state. When the hydrocarbon combustible gas explodes, it can generate carbon nano powder. By providing hydrocarbon combustible gas and oxygen into the detonation chamber, it is ensured that the hydrocarbon combustible gas can smoothly explode in the detonation chamber.

[0049] S3. Ignite when the concentrations of the hydrocarbon combustible gas and oxygen in the detonation chamber reach a preset concentration. When the concentrations of the hydrocarbon combustible gas and oxygen do not reach the preset concentration, an explosion may not occur when the hydrocarbon combustible gas in the detonation chamber is ignited. When the concentrations of the hydrocarbon combustible gas and oxygen in the detonation chamber reach the preset concentration and are ignited, the hydrocarbon combustible gas and oxygen can explode in the detonation chamber.

[0050] S4. After an explosion occurs in the detonation chamber, supply gas into the detonation chamber. At this time, the gas supplied into the detonation chamber does not react with the carbon nano powder, and the gas entering the detonation chamber can carry the carbon nano powder and flow.

[0051] S5. Filter the gas discharged from the detonation chamber, thereby collecting the carbon nano powder in the detonation chamber. After an explosion occurs in the detonation chamber, supply gas into the detonation chamber. During the flowing process, the gas carries the carbon nano powder into the interior of the filter cylinder 120. The carbon nano powder entering the interior of the filter cylinder 120 is intercepted by the side wall of the filter cylinder 120, and the gas entering the interior of the filter cylinder 120 gradually separates from the filter cylinder 120, thereby realizing the collection of the carbon nano powder.

[0052] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for synthesizing carbon nanomaterials by continuous gas phase detonation, characterized in that: include: A gas explosion system, the gas explosion system comprising a detonation tube and a vacuum member; The detonation tube has a detonation chamber inside; The detonation chamber is used to provide a gas explosion environment; the vacuum member is used to ensure that the detonation chamber is in a vacuum state; A gas injection system, the gas injection system is used to provide hydrocarbon combustible gas and oxygen into the detonation chamber in a vacuum state; an ignition element is provided on the detonation tube, the ignition element is used to ignite when the hydrocarbon combustible gas and oxygen in the detonation chamber reach a preset concentration; A collection system, the collection system includes an air supply pump and a filter cartridge, the air supply pump is used to supply air to the detonation chamber, the gas supplied by the air supply pump to the detonation chamber does not react with the hydrocarbon combustible gas and the oxygen; the filter cartridge is connected to the detonation chamber, the gas transported by the air supply pump to the detonation chamber can carry carbon nano powder into the filter cartridge, and the filter cartridge can collect the carbon nano powder in the detonation chamber.

2. The continuous gas phase detonation carbon nanomaterial synthesis device according to claim 1, characterized in that: The vacuum component includes a first sealing plate, a second sealing plate and a piston plate, the first sealing plate is fixedly and sealingly arranged at one end of the detonation tube, the second sealing plate is fixedly and sealingly arranged at the other end of the detonation tube, and the second sealing plate is provided with an air leakage hole; the piston plate is slidingly and sealingly arranged in the detonation chamber; a driving rod is connected to the piston plate, and the driving rod passes through the second sealing plate through the air leakage hole.

3. The continuous gas phase detonation carbon nanomaterial synthesis device according to claim 2, characterized in that: A plurality of connecting pipes are arranged on the first blocking plate, each of which can connect the detonation chamber with the external environment, and each of which is provided with a control valve, which can affect the conduction state of the connecting pipe.

4. The continuous gas phase detonation carbon nanomaterial synthesis device according to claim 3, characterized in that: The gas injection system includes a mixing cylinder, a high-pressure oxygen tank and a high-pressure combustible gas tank. The mixing cylinder is connected to any one of the connecting pipes, the high-pressure oxygen tank is connected to the mixing cylinder, and the high-pressure combustible gas tank is connected to the mixing cylinder. The high-pressure combustible gas tank stores hydrocarbon combustible gas. The hydrocarbon combustible gas and the oxygen can be mixed inside the mixing cylinder and then transported to the detonation tube.

5. The continuous gas phase detonation carbon nanomaterial synthesis device according to claim 3, characterized in that: The collection system also includes a collection box and an exhaust gas processor. The collection box is connected to any one of the connecting pipes. The filter cartridge is fixedly arranged inside the collection box. The exhaust gas processor is connected to the collection box. The gas entering the collection box can be discharged from the collection box through the exhaust gas processor.

6. The continuous gas phase detonation carbon nanomaterial synthesis device according to claim 1, characterized in that: The air supply pump is connected to a nitrogen bottle or an inert gas bottle.

7. The continuous gas phase detonation carbon nanomaterial synthesis device according to claim 1, characterized in that: The ignition component is a spark plug having an ignition end, and the ignition end is arranged in the detonation chamber.

8. The continuous gas phase detonation carbon nanomaterial synthesis device according to claim 1, characterized in that: The detonation tube can withstand the pressure of the hydrocarbon combustible gas exploding in the detonation chamber.

9. The continuous gas phase detonation carbon nanomaterial synthesis device according to claim 1, characterized in that: A water cooling jacket is provided on the outer side of the detonation tube, the water cooling jacket is spaced apart from the detonation tube, a cooling chamber is formed between the inner side wall of the water cooling jacket and the outer side wall of the detonation tube, and a coolant is contained in the cooling chamber.

10. A method for controlling the continuous gas phase detonation synthesis of carbon nanomaterials, using the continuous gas phase detonation synthesis of carbon nanomaterials device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, adjusting the environment in the detonation chamber to a vacuum state; S2, providing hydrocarbon combustible gas and oxygen into the detonation chamber in a vacuum state; S3, igniting when the hydrocarbon combustible gas and oxygen in the detonation chamber reach a preset concentration; S4, supplying gas into the detonation chamber after an explosion occurs in the detonation chamber; S5, filtering the gas discharged from the detonation chamber, so as to collect the carbon nano powder in the detonation chamber.

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