Burner and nanoparticle preparation device
By designing a burner including an air nozzle, an air intake body, an atomizing assembly and a cooling block, the problems of complex burner manufacturing and high cost in the existing technology are solved, and low-cost and highly integrated nanoparticle preparation is achieved, which is suitable for the flame spray pyrolysis process of the liquid phase injection method.
Patent Information
- Application Number
- CN202423015731.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-09
AI Technical Summary
The burner manufacturing process of the existing flame spray pyrolysis method is complex, costly and has a low level of integration, making it difficult to achieve efficient nanoparticle preparation using the liquid phase injection method.
A burner including an air jet head, an air inlet body, an atomizing assembly and a cooling block was designed. A modular design was achieved through a simple assembly method. A quartz tube and capillary structure was adopted, combined with inert gas protection, to reduce costs and improve integration.
The flame spray pyrolysis process is realized, which reduces manufacturing costs, improves production efficiency, and enhances the degree of integration through modular design, making it suitable for a wide range of precursor selections.
Smart Images
Figure CN223460446U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to nanometer particle preparation technical field especially is related to a combustor and nanometer particle preparation device. BACKGROUND
[0002] According to the different precursor sample feeding mode, the flame synthesis method is usually divided into two categories: gas phase sample feeding flame synthesis method and liquid phase sample feeding flame synthesis method. In the gas phase sample feeding flame synthesis method, the metal precursor is gaseous, the method device is simple, and large-scale industrial application has been realized. But the gas phase sample feeding method can only synthesize a few elements with suitable gaseous precursors. In the liquid phase sample feeding flame synthesis method, the solid precursor is dissolved into a suitable solvent, and then sprayed into the flame through atomization, so that synthesis of most elements can be realized. According to the different flame forms, the liquid phase sample feeding method is divided into various types, among which, the flame spray pyrolysis (FSP) is one of the most representative flame synthesis methods. However, the structure for realizing the flame spray pyrolysis in the prior art is unreasonable, resulting in complex manufacturing process, high cost and low integration level of the combustor. Therefore, there is an urgent need for a new scheme to solve the above problems. SUMMARY
[0003] The utility model discloses a combustor and nanometer particle preparation device, to solve the problem of prior art, low cost, high integration level.
[0004] To achieve the above object, the utility model provides the following scheme:
[0005] The utility model provides a combustor, include: air jet head, air inlet main part, atomization subassembly and cooling block, the air jet head middle part is provided with a through -hole that penetrates top surface and bottom surface, the air jet head top surface constitutes a plurality of gas outlets, a plurality of gas outlets surround the through -hole arrangement, the bottom surface of air jet head constitutes a plurality of gas inlets, the gas inlet and gas outlet intercommunication, the air inlet main part sets up in the bottom of air jet head, the air inlet main part towards one side of air jet head constitutes annular gas inlet groove, still constitutes the gas inlet channel of intercommunication with gas inlet groove on the air inlet main part, the gas inlet groove with gas inlet intercommunication, the atomization head of atomization subassembly sets up in the through -hole, the atomization head can atomize precursor liquid and from the top of through -hole and spray, the cooling block surrounds the air jet head and sets up in the ring, the cooling block is provided with cooling channel in, the cooling block with air inlet main part can be connected and clamp the air jet head.
[0006] Preferably, the atomization assembly comprises an outer tube and an inner tube; the inner tube is nested in the outer tube, the inner tube is a capillary tube, the top of the inner tube does not protrude from the outer tube, the annular gap between the outer tube and the inner tube is used to fill high-pressure combustion-supporting gas, and the top of the outer tube is located in the through hole.
[0007] Preferably, the top surface of the jet head is further provided with a plurality of inert gas outlets, the plurality of inert gas outlets are arranged around the plurality of gas outlets, the bottom surface of the jet head is provided with a plurality of inert gas inlets, the inert gas inlets and the inert gas outlets are in communication, one side of the air inlet body towards the jet head is provided with an annular inert gas inlet groove, the air inlet body is further provided with an inert gas inlet channel in communication with the inert gas inlet groove, and the inert gas inlet groove is in communication with the inert gas inlets.
[0008] Preferably, the outer tube and the inner tube are both quartz tubes; and the jet head is pressure-cast by a plurality of steel balls.
[0009] Preferably, the jet head is provided with an annular flange on the peripheral side, the cooling block is sleeved outside the jet head and cooperates with the air inlet body to press and fix the annular flange, and the cooling block and the air inlet body are detachably connected.
[0010] Preferably, the cooling block and the air inlet body are both square in shape, and the jet head is circular in shape.
[0011] Preferably, the cooling block and the air inlet body are both made of metal.
[0012] The utility model further provides a kind of nano-particle preparation device, including particle collection device and the burner as described above, and the particle collection device is used to collect the nano-particle generated by the burner.
[0013] Preferably, the particle collection device comprises a suction pipe, a filter membrane and a suction pump, one end of the suction pipe is aligned with the burner, the other end is detachably provided with the filter membrane, and the suction pump is arranged on the side of the filter membrane away from the suction pipe.
[0014] Compared with the prior art, the utility model has the following technical effects:
[0015] The burner provided by the utility model can realize flame spray pyrolysis process, and clamping the jet head can be realized by connecting the cooling block and the air inlet body, the whole assembly process is simple and easy to implement, the manufacturing efficiency is improved, the cost is reduced, the integration degree of the burner is high, and modular design is realized. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings described below only represent some of the embodiments of the present application, and not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0017] Figure 1 The structural schematic diagram of the burner provided by the present application is shown in the figure.
[0018] Figure 2 The structural schematic diagram of the burner provided by the present application is shown in the figure. Figure 1 The view in another direction.
[0019] Figure 3 The structural schematic diagram of the burner provided by the present application is shown in the figure. Figure 1 The sectional view of the burner provided by the present application is shown in the figure.
[0020] Figure 4 The structural schematic diagram of the burner provided by the present application is shown in the figure.
[0021] Figure 5 The view in another direction.
[0022] Figure 6 The structural schematic diagram of the burner provided by the present application is shown in the figure.
[0023] Figure 7 The structural schematic diagram of the burner provided by the present application is shown in the figure.
[0024] Figure 8 The structural schematic diagram of the burner provided by the present application is shown in the figure.
[0025] In the figure: 1-cooling block; 2-gas inlet body; 3-jet head; 4-atomization assembly; 5-atomization head; 6-cooling channel inlet and outlet; 7-gas inlet channel; 8-inert gas inlet channel; 9-inert gas inlet groove; 10-gas inlet groove; 11-cooling channel; 12-outer pipe; 13-inner pipe; 14-positioning column; 15-annular flange; 16-through hole; 17-filter membrane; 18-exhaust pipe; 19-exhaust pump. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only represent some of the embodiments of the present application, and not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0027] In order to make the above objects, features and advantages of the present application more obvious, the present application will be further described in detail below with reference to the drawings and specific embodiments.
[0028] The embodiments of the present application will be described below with reference to the drawings. Figures 1 to 8
[0029] The present application provides a burner, comprising: a jet head 3, an air inlet main body 2, an atomization assembly 4 and a cooling block 1; the jet head 3 is provided with a through hole 16 penetrating through the top surface and the bottom surface in the middle part; the top surface of the jet head 3 is structured with a plurality of gas outlets, and the plurality of gas outlets are arranged around the through hole 16; the bottom surface of the jet head 3 is structured with a plurality of gas inlets, and the gas inlets and the gas outlets are communicated; the air inlet main body 2 is arranged at the bottom of the jet head 3, and the side of the air inlet main body 2 facing the jet head 3 is structured with an annular gas inlet groove 10, and the air inlet main body 2 is further structured with a gas inlet channel 7 communicated with the gas inlet groove 10; the gas inlet groove 10 is communicated with the gas inlets; the atomization head 5 of the atomization assembly 4 is arranged in the through hole 16, and the atomization head 5 can atomize the precursor liquid and spray it out from the top of the through hole 16; the cooling block 1 is annular and arranged around the jet head 3, and the cooling block 1 is provided with a cooling channel 11; the cooling block 1 and the air inlet main body 2 are detachably connected and clamp the jet head 3.
[0030] The burner provided by the present application can realize the flame spray pyrolysis process, can directly spray and burn the solution, and has a very wide selection range for the precursor, can use cheap metal salts and various organic solvents, and the solvent can be selected from ethanol, methanol, toluene and the like.
[0031] The cooling block 1 and the air inlet main body 2 are connected to clamp the jet head 3, the whole assembly process is simple and easy to implement, the manufacturing efficiency is improved, the cost is reduced, the integration degree of the burner is high, and the modular design is realized.
[0032] In some embodiments, the atomization assembly 4 comprises an outer tube 12 and an inner tube 13; the inner tube 13 is nested in the outer tube 12, the inner tube 13 is a capillary tube, the top opening of the inner tube 13 does not protrude from the outer tube 12, the annular gap between the outer tube 12 and the inner tube 13 is used to fill high-pressure combustion-supporting gas, and the top of the outer tube 12 is located in the through hole 16.
[0033] The atomizing assembly 4 in the embodiment is a two-fluid atomizer, wherein the high-pressure combustion-supporting gas in the annular gap between the outer tube 12 and the inner tube 13 can atomize the precursor liquid sprayed out of the inner tube 13 when the high-pressure combustion-supporting gas is sprayed out from the top. Since the inner tube 13 is a capillary tube, the inner diameter of the capillary tube is usually about 0.4 mm, and it is difficult to process a capillary tube from stainless steel. Therefore, in some examples, the outer tube 12 and the inner tube 13 are both quartz tubes. Compared with stainless steel, quartz is easier to process, thereby improving the structural precision of the atomizing assembly 4. The utility model does not improve the principle of the two-fluid atomizer, and therefore, the atomizing principle of the two-fluid atomizer is not described in detail in the specification.
[0034] The combustion-supporting gas is preferably oxygen.
[0035] In some examples, the top surface of the jet head 3 is further provided with a plurality of inert gas outlets arranged around the plurality of combustion gas outlets, the bottom surface of the jet head 3 is provided with a plurality of inert gas inlets, and the inert gas inlets and the inert gas outlets are in communication; the side of the air inlet body 2 facing the jet head 3 is provided with an annular inert gas inlet groove 9, and the air inlet body 2 is further provided with an inert gas inlet channel 8 in communication with the inert gas inlet groove 9; the inert gas inlet groove 9 is in communication with the inert gas inlets.
[0036] In the embodiment, the inert gas is sprayed to form a gas cover to avoid flame overflow, thereby achieving safe production of nanoparticles.
[0037] In some examples, the jet head 3 is pressure-cast from a plurality of steel balls.
[0038] In the embodiment, the inert gas inlets and outlets and the combustion gas inlets and outlets are formed between adjacent steel balls, and the channels for communicating the inert gas inlets and outlets and the combustion gas inlets and outlets are also formed between the steel balls. The jet head 3 in the embodiment can uniformly mix the combustion gas and make the combustion gas uniformly sprayed around the through holes 16.
[0039] In some examples, the cooling block 1 and the air inlet body 2 can be connected by bolts. Specifically, a through hole is provided on the cooling block 1, a threaded hole is provided at the corresponding position of the air inlet body 2, the shank of the bolt is then screwed into the threaded hole after passing through the through hole, and the nut of the bolt presses the cooling block 1 tightly against the air inlet body 2. Of course, other connection methods such as buckling can also be used for detachable connection.
[0040] In some examples, the jet head 3 is provided with an annular flange 15 on the peripheral side, the cooling block 1 is sleeved outside the jet head 3 and is pressed and fixed tightly with the annular flange 15 in cooperation with the air inlet body 2, and the cooling block 1 and the air inlet body 2 are detachably connected.
[0041] The embodiment realizes the pressing of the jet head 3.
[0042] In some embodiments, the middle part of the air inlet body 2 is provided with a through channel penetrating the top surface and the bottom surface, which is formed in a positioning column 14, the top of the positioning column 14 is inserted into the through hole of the air jet head 3 and is flush with the top surface of the air jet head 3, the shape of the positioning column 14 is matched with the shape of the through hole to play a positioning role on the air jet head 3, and in addition, the annular gas inlet groove 10 is arranged around the positioning column 14.
[0043] In some embodiments, the cooling block 1 and the air inlet body 2 are square as a whole, and the air jet head 3 is circular as a whole.
[0044] This embodiment realizes the purpose that the overall structure of the burner is square, and makes the shape regular.
[0045] In some embodiments, the cooling block 1 and the air inlet body 2 are both metal materials.
[0046] The utility model also provides a kind of nano particle preparation device, including particle collection device and the burner as described above, particle collection device is used to collect the nano particle generated by burner.
[0047] Specifically, as shown in Figure 8 Particle collection device includes suction pipe 18, filter membrane 17 and suction pump 19, one end of suction pipe 18 is aligned with burner, and the other end is detachably provided with filter membrane 17, and suction pump 19 is arranged on the side of filter membrane 17 away from suction pipe 18.
[0048] In this embodiment, suction pump 19 draws the gas near the one end of suction pipe 18 close to burner to the other end, and in the process of gas flow, gas carries particles and hits on filter membrane 17, filter membrane 17 can adsorb nano particles, after working for a certain time, filter membrane 17 is detached, and nano particles on filter membrane 17 can be collected.
[0049] In some embodiments, the filter membrane is glass filter paper.
[0050] As mentioned above, in the initial stage, the gas sprayed from the top surface of the air jet head 3 is ignited by ignition gun.
[0051] The principle and implementation mode of the specific examples are described in the utility model, and the above embodiment is only used to help understand the method and core idea of the utility model; meanwhile, for general technical personnel in the field, according to the idea of the utility model, the specific implementation mode and application range will be changed. As described above, the content of the specification should not be understood as the limitation of the utility model.
Claims
1. A burner characterized by: The burner comprises: a jet head, which is provided with a through hole penetrating through the top surface and the bottom surface; the top surface of the jet head is configured with a plurality of gas outlets, which are arranged around the through hole; the bottom surface of the jet head is configured with a plurality of gas inlets, which are in communication with the gas outlets; an air inlet body, which is arranged at the bottom of the jet head and is configured with an annular gas inlet groove on the side facing the jet head; the air inlet body is further configured with a gas inlet channel in communication with the gas inlet groove; the gas inlet groove is in communication with the gas inlets; an atomization assembly, which is arranged in the through hole of the jet head and can atomize the precursor liquid and spray it out of the top of the through hole; a cooling block, which is annular and arranged around the jet head; the cooling block is provided with a cooling channel; the cooling block and the air inlet body are detachably connected and clamp the jet head.
2. The burner of claim 1, wherein: The atomization assembly comprises an outer tube and an inner tube; the inner tube is nested in the outer tube; the inner tube is a capillary tube; the top opening of the inner tube does not protrude from the outer tube; the annular gap between the outer tube and the inner tube is used to fill high-pressure combustion-supporting gas; the top of the outer tube is located in the through hole.
3. The burner of claim 1, wherein: The top surface of the jet head is further configured with a plurality of inert gas outlets, which are arranged around the gas outlets; the bottom surface of the jet head is configured with a plurality of inert gas inlets, which are in communication with the inert gas outlets; the side of the air inlet body facing the jet head is configured with an annular inert gas inlet groove; the air inlet body is further configured with an inert gas inlet channel in communication with the inert gas inlet groove; the inert gas inlet groove is in communication with the inert gas inlets.
4. The burner of claim 2, wherein: Both the outer tube and the inner tube are quartz tubes; the jet head is pressure-cast by a plurality of steel balls.
5. The burner of claim 1, wherein: The jet head is provided with an annular flange on the lateral side; the cooling block is sleeved on the outside of the jet head and cooperates with the air inlet body to press and fix the annular flange; the cooling block and the air inlet body are detachably connected.
6. The burner of claim 5, wherein: The cooling block and the air inlet body are square as a whole, and the jet head is circular as a whole.
7. The burner of claim 1, wherein: Both the cooling block and the air inlet body are made of metal.
8. A nanoparticle production apparatus characterized by: The burner comprises a particle collection device and any one of the burners according to claims 1-7, which is used to collect the nanoparticles generated by the burner.
9. The nanoparticle preparation apparatus of claim 8, wherein: The particle collection device comprises an air suction pipe, a filter membrane and an air suction pump; one end of the air suction pipe is aligned with the burner, and the other end is detachably provided with the filter membrane; the side of the filter membrane facing away from the air suction pipe is provided with the air suction pump.
10. The nanoparticle preparation apparatus of claim 9, wherein: The filter membrane is a glass filter paper.