A flash-heat sample loading reaction device for preparing uniform nanoparticles

Abstract

The present invention discloses a flash sample loading reaction device for preparing uniform nanoparticles, which belongs to the technical field of nanoparticle preparation, and comprises an insulating heat-insulating base and a quartz box installed on the top of the insulating heat-insulating base, wherein quartz tubes are installed in a rectangular distribution between the two ends of the quartz box, one end of the quartz tubes is provided with a front atmosphere protection plug, and the other end of the quartz tubes is provided with a rear atmosphere protection plug, and a vent hole is provided at the middle position of the front atmosphere protection plug and the rear atmosphere protection plug. The present invention arranges multiple groups of quartz tubes uniformly between the two ends of the quartz box, and the multiple groups of quartz tubes are distributed in a rectangular shape, and sample loading reaction mechanisms are respectively arranged inside the multiple groups of quartz tubes, and infrared thermometers arranged on the top and side of the quartz box are used to monitor data inside different quartz tubes, so that the device can produce the same sample with different parameters in a production process, and multiple samples will not affect each other, thereby improving production efficiency.

Description

Technical Field

[0001] The invention relates to a flash-heat sample-loading reaction device, in particular to a flash-heat sample-loading reaction device for preparing uniform nanoparticles, belonging to the technical field of nanoparticle preparation. Background Art

[0002] The metal nanoparticles loaded on the carrier not only have special physical and chemical properties, but also make the material have adjustable size, shape and stability. They play an important role in the preparation of materials such as catalysis, energy conversion, chemical sensing, ceramic materials, and alloy materials. Metal nanoparticles can be prepared by traditional magnetron sputtering, solvent thermal method, laser cladding and other methods. However, it is difficult to evenly fix the metal nanoparticles on the carbon carrier using these methods, and the temperature control is difficult to achieve the expected results. Not only is it difficult to reach too high a temperature, but the long heating and cooling time will also lead to material agglomeration. When the Joule thermal shock device is started, the electric current is used to instantly convert high heat to thermally shock the sample, and the sample is quickly cooled to room temperature after the power supply is turned off. Through the rapid heating and cooling process, a variety of small and uniform metal nanoparticles can be mixed. The synthesized metal nanoparticles have a narrow size distribution and can be evenly dispersed on the carbon fiber carrier, which helps to prepare materials with better performance.

[0003] The existing sample loading reaction devices are inefficient and, more importantly, cannot achieve continuous changes in temperature gradients. Only the same parameters can be used in a single production process, and there is a lack of uniform control of the temperature field. If the sample surface is uneven and cannot fit tightly against the carbon fiber carrier, uneven heating of the sample will result, which limits the preparation of the material and the uniformity of the resulting material.

[0004] Therefore, a flash-heating sample loading reaction device for preparing uniform nanoparticles was designed to optimize the above problems. Summary of the invention

[0005] The main purpose of the present invention is to provide a flash-heat sample-loading reaction device for preparing uniform nanoparticles, wherein multiple groups of quartz tubes are evenly arranged between the two ends of a quartz box, and the multiple groups of quartz tubes are distributed in a rectangular shape, and sample-loading reaction mechanisms are respectively arranged inside the multiple groups of quartz tubes, and infrared thermometers arranged on the top and side of the quartz box are used to monitor data inside different quartz tubes, so that the device can produce the same sample under different parameters during a production process, and multiple samples will not be affected by each other, thereby improving production efficiency. A sample-loading reaction mechanism composed of a quartz sheet, a carbon cloth, a carbon felt and a clamping and positioning component is slidably arranged on the top of a supporting sliding rod, and two groups of carbon cloth and carbon felt are respectively arranged, and the two groups of carbon felt are located between the carbon cloths, and the sample is located between the two groups of carbon felts, and the carbon felt is composed of short carbon fibers and non-woven fabrics. The mutual entanglement between the two pieces of carbon felt can The sample clamped therein can be more perfectly fitted on it, and the uniform control of the temperature field can be achieved. The strip slide groove opened along the length direction of the quartz plate cooperates with the clamping and positioning mechanism composed of the convex plate, the first limit plate, the horizontal conductive voltage plate, the screw, the adjustment block, and the second limit plate. The thickness of the first limit plate is less than the height of the strip slide groove, so that in the process of squeezing and clamping the carbon cloth by moving the screw downward, the convex plate will drive the second limit plate to be lifted to a certain height, and the second limit plate will be tightly attached to the bottom of the supporting slide rod. The positions of the quartz plate and the sample are fixed at the same time, which is more convenient to use. The conductive rings on the front atmosphere protection plug and the rear atmosphere protection plug cooperate with the conductive rods and fixed rods on both sides of the quartz tube and the V-shaped conductive plate and conductive wire on the convex plate to form a conductive mechanism, so that after the sample is sent in and the quartz tube is sealed, the circuit can be automatically turned on, ensuring the safety of the equipment.

[0006] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0007] A flash sample loading reaction device for preparing uniform nanoparticles comprises an insulating heat insulation base and a quartz box installed on the top of the insulating heat insulation base, quartz tubes are installed in a rectangular distribution between the two ends of the quartz box, one end of the quartz tube is provided with a front atmosphere protection plug, the other end of the quartz tube is provided with a rear atmosphere protection plug, and a vent hole is provided at the middle position of the front atmosphere protection plug and the rear atmosphere protection plug, a telescopic cylinder is installed at one end of the insulating heat insulation base close to the rear atmosphere protection plug, a mounting plate is vertically installed at the output end of the telescopic cylinder, the rear atmosphere protection plugs pass through the inside of the mounting plate, a locking mechanism for positioning the rear atmosphere protection plugs is provided on the mounting plate, support slide rods are symmetrically installed on the inner side of the rear atmosphere protection plugs, a sample loading reaction mechanism is slidably installed on the support slide rods, a conductive mechanism is provided inside the quartz tube, infrared thermometers are vertically installed on the top and both sides of the quartz box, and the infrared thermometers correspond to the quartz tubes respectively;

[0008] The sample loading reaction mechanism includes a quartz plate, a carbon cloth, a carbon felt and a clamping and positioning assembly. The quartz plate is slidably arranged on the top of the supporting slide rod. The top of the quartz plate is provided with a carbon cloth. Two groups of carbon cloths are provided. Carbon felt is provided between the two groups of carbon cloths. Two groups of carbon felts are provided. Samples are provided between the two groups of carbon felts. The end of the quartz plate is provided with a clamping and positioning assembly for positioning the quartz plate, the carbon cloth and the carbon felt.

[0009] Preferably: the clamping and positioning assembly includes a strip slide groove, a shaped plate, a first limit plate, a horizontal conductive voltage plate, a screw, an adjustment block and a second limit plate. The strip slide groove is opened on both sides of the quartz plate along the length direction of the quartz plate, and the shaped plates are respectively arranged at both ends of the quartz plate. The first limit plate is fixed on the inner side of the shaped plate, and the first limit plate is inside the strip slide groove, and the thickness of the first limit plate is less than the height of the strip slide groove. The inside of the shaped plate is vertically slidably provided with a horizontal conductive voltage plate, the top of the shaped plate is threadedly installed with a screw, the bottom end of the screw is threadedly connected to the horizontal conductive voltage plate, the top of the screw is installed with an adjustment block, the inner bottom end of the shaped plate is fixed with a second limit plate, and the second limit plate is fitted to the bottom of the supporting slide rod.

[0010] Preferably, the top of the second limiting plate is arc-shaped, and the length of the second limiting plate is the same as the length of the end of the curved plate.

[0011] Preferably: the conductive mechanism includes a conductive ring, a fixed rod, a conductive rod, a V-shaped conductive plate and a conductive wire, the conductive ring is installed on the inner side of the front atmosphere protection plug and the rear atmosphere protection plug, the conductive rods are respectively installed at both ends of the two sides of the quartz tube, a fixed rod is fixed between the conductive rod and the inner wall of the quartz tube, the ends of the two groups of conductive rods are respectively in contact with the two groups of conductive rings, V-shaped conductive plates are obliquely arranged on different sides of the two groups of V-shaped plates, conductive wires are arranged between the V-shaped conductive plate and the horizontal conductive plate, and the two groups of V-shaped conductive plates are respectively in contact with the two groups of conductive rods.

[0012] Preferably, the conductive ring, the conductive rod, the V-shaped conductive plate and the horizontal conductive plate are made of the same material, that is, copper, and the inner side of the V-shaped conductive plate is arc-shaped.

[0013] Preferably: the locking mechanism includes a mounting hole, an L-shaped slide groove and a card block, the mounting holes are arranged in a rectangular shape on the mounting plate, the rear atmosphere protection plugs pass through the inside of the mounting holes respectively, the inside of the mounting holes are provided with an L-shaped slide groove, and the outer side of the rear atmosphere protection plug is circumferentially provided with a card block that cooperates with the L-shaped slide groove.

[0014] Preferably, the outer edge of the rear atmosphere protection plug is evenly provided with anti-slip grooves in the circumferential direction, and the card blocks on the outer side of the rear atmosphere protection plug are all provided with four groups.

[0015] Preferably, an annular slide groove is provided on the inner side of the rear atmosphere protection plug, a sliding ring is rotatably installed inside the annular slide groove, and the ends of the supporting slide rods are fixed on the sliding ring.

[0016] Preferably, the inner shape of the annular chute is an arc shape, the slip ring is located inside the arc shape, and the cross-sectional diameter of the slip ring is greater than the width of the outer end of the annular chute.

[0017] Preferably, two groups of telescopic cylinders are provided, and the telescopic cylinders are symmetrically arranged on both sides of the inside of the insulating and heat-insulating base.

[0018] The beneficial effects of the present invention are:

[0019] The present invention provides a flash-heat sample loading reaction device for preparing uniform nanoparticles. Multiple groups of quartz tubes are evenly arranged between the two ends of a quartz box, and the multiple groups of quartz tubes are distributed in a rectangular shape. Sample loading reaction mechanisms are respectively arranged inside the multiple groups of quartz tubes. At the same time, infrared thermometers arranged on the top and side of the quartz box are used to monitor data inside different quartz tubes. In this way, the device can produce the same sample under different parameters in a single production process, and multiple samples will not affect each other, thereby improving production efficiency.

[0020] A sample loading reaction mechanism consisting of a quartz sheet, a carbon cloth, a carbon felt and a clamping and positioning assembly is slidably arranged on the top of a supporting slide rod, and two groups of carbon cloth and carbon felt are arranged respectively, and the two groups of carbon felt are located between the carbon cloths, and the sample is located between the two groups of carbon felts. The carbon felts are composed of short carbon fibers and non-woven fabrics. The mutual entanglement between the two pieces of carbon felts can make the sample sandwiched therein fit more perfectly on them, thereby realizing uniform control of the temperature field.

[0021] The strip-shaped slide groove opened along the length direction of the quartz plate cooperates with the clamping and positioning mechanism composed of the convex plate, the first limit plate, the horizontal conductive plate, the screw, the adjustment block, and the second limit plate. The thickness of the first limit plate is less than the height of the strip-shaped slide groove, so that in the process of squeezing and clamping the carbon cloth by moving the screw downward, the convex plate will drive the second limit plate to be lifted to a certain height, and the second limit plate will be closely attached to the bottom of the supporting slide rod, and the positions of the quartz plate and the sample are fixed at the same time, which is more convenient to use.

[0022] Through the conductive rings on the front atmosphere protection plug and the rear atmosphere protection plug, the conductive rods and fixed rods on both sides of the quartz tube, and the V-shaped conductive plate and conductive wire on the convex plate, the circuit can be automatically turned on after the sample is sent in and the quartz tube is sealed, ensuring the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front cross-sectional view of a preferred embodiment of a flash-heat sample loading reaction device for preparing uniform nanoparticles of the present invention;

[0024] Figure 2Internal cross-sectional view of the quartz tube in a preferred embodiment of a flash heat sample-loading reaction device for preparing uniform nanoparticles according to the present invention;

[0025] Figure 3 Side installation structure diagram of the second atmosphere protection plug in a preferred embodiment of a flash heat sample-loading reaction device for preparing uniform nanoparticles according to the present invention;

[0026] Figure 4 Sample-loading reaction mechanism diagram in a preferred embodiment of a flash heat sample-loading reaction device for preparing uniform nanoparticles according to the present invention;

[0027] Figure 5 Clamping and positioning component diagram in a preferred embodiment of a flash heat sample-loading reaction device for preparing uniform nanoparticles according to the present invention;

[0028] Figure 6 Front atmosphere protection plug diagram in a preferred embodiment of a flash heat sample-loading reaction device for preparing uniform nanoparticles according to the present invention;

[0029] Figure 7 Rear atmosphere protection plug cross-sectional view in a preferred embodiment of a flash heat sample-loading reaction device for preparing uniform nanoparticles according to the present invention;

[0030] Figure 8 Locking mechanism diagram in a preferred embodiment of a flash heat sample-loading reaction device for preparing uniform nanoparticles according to the present invention.

[0031] In the figure: 1. Insulating and heat-insulating base; 2. Quartz box; 3. Quartz tube; 4. Front atmosphere protection plug; 5. Rear atmosphere protection plug; 6. Telescopic cylinder; 7. Mounting plate;

[0032] 8. Locking mechanism; 801. Mounting hole; 802. L-shaped sliding groove; 803. Block;

[0033] 9. Support sliding rod; 901. Ring-shaped sliding groove; 902. Sliding ring;

[0034] 10. Sample-loading reaction mechanism; 1001. Quartz sheet; 1002. Carbon cloth; 1003. Carbon felt;

[0035] 1004. Clamping and positioning component; 10041. Strip-shaped sliding groove; 10042. U-shaped plate; 10043. First limiting plate; 10044. Horizontal conductive pressing plate; 10045. Screw; 10046. Adjusting block; 10047. Second limiting plate;

[0036] 11. Conductive mechanism; 1101. Conductive ring; 1102. Fixed rod; 1103. Conductive rod; 1104. V-shaped conductive plate; 1105. Conductive wire;

[0037] 12. Infrared thermometer; 13. Ventilation hole. DETAILED DESCRIPTION

[0038] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0039] like Figure 1-Figure 8 As shown, this embodiment provides a flash sample loading reaction device for preparing uniform nanoparticles, comprising an insulating and heat-insulating base 1 and a quartz box 2 installed on the top of the insulating and heat-insulating base 1, quartz tubes 3 are installed in a rectangular distribution between the two ends of the quartz box 2, one end of the quartz tubes 3 is provided with a front atmosphere protection plug 4, and the other end of the quartz tubes 3 is provided with a rear atmosphere protection plug 5, and a vent hole 13 is opened at the middle position of the front atmosphere protection plug 4 and the rear atmosphere protection plug 5, and the insulating and heat-insulating base 1 is close to the end of the rear atmosphere protection plug 5. A telescopic cylinder 6 is installed, and a mounting plate 7 is vertically installed at the output end of the telescopic cylinder 6. The rear atmosphere protection plugs 5 all pass through the inside of the mounting plate 7. The mounting plate 7 is provided with a locking mechanism 8 for positioning the rear atmosphere protection plugs 5. Support slide rods 9 are symmetrically installed on the inner side of the rear atmosphere protection plugs 5. A sample loading reaction mechanism 10 is slidably installed on the support slide rods 9. A conductive mechanism 11 is provided inside the quartz tube 3. Infrared thermometers 12 are vertically installed on the top and both sides of the quartz box 2, and the infrared thermometers 12 correspond to the quartz tubes 3 respectively.

[0040] The sample loading reaction mechanism 10 includes a quartz plate 1001, a carbon cloth 1002, a carbon felt 1003 and a clamping and positioning assembly 1004. The quartz plate 1001 is slidably set on the top of the supporting slide rod 9. The carbon cloth 1002 is set on the top of the quartz plate 1001. There are two groups of carbon cloth 1002. Carbon felt 1003 is set between the two groups of carbon cloth 1002. There are two groups of carbon felt 1003. Samples are set between the two groups of carbon felt 1003. The end of the quartz plate 1001 is provided with a clamping and positioning assembly 1004 for positioning the quartz plate 1001, the carbon cloth 1002 and the carbon felt 1003.

[0041] General working principle: When the device is in use, according to the preparation requirements, the telescopic cylinder 6 can be started, and at the same time, the rear atmosphere protection plug 5 is opened, and the sample-loading reaction mechanism 10 is taken out at the same time. It is also possible to release the locking mechanism 8 between the rear atmosphere protection plug 5 and the mounting plate 7 and take out individual sample-loading reaction mechanisms 10 separately. Then, first lay a layer of carbon cloth 1002 on the top of the quartz wafer 1001, lay a layer of carbon felt 1003 on the top of the carbon cloth 1002, then place the sample on the top of the carbon felt 1003, and after the placement is completed, also lay a layer of carbon felt 1003 on the top of the sample. The entanglement between the two layers of carbon felt 1003 can make the sample sandwiched between them fit more perfectly on it. After that, lay a layer of carbon cloth 1002 on the top of the carbon felt 1003. Finally, use the clamping and positioning component 1004 to position the positions of the quartz wafer 1001, carbon cloth 1002 and carbon felt 1003. After the sample is prepared, insert the sample into the interior of the quartz tube 3, and seal the quartz tube 3 through the rear atmosphere protection plug 5. After the quartz tube 3 is sealed, except for the ventilation hole 13 for introducing the protective atmosphere, the entire interior of the quartz box 2 is in a sealed state. During use, the interior of the quartz tube 3 is always in the required atmosphere environment and does not contact the external atmosphere. At the same time, the sample-loading reaction mechanism 10 is electrically connected to an external power supply device through the conductive mechanism 11, and different electrical parameters can be provided by the power supply device, so that the sample in the sample-loading reaction mechanism 10 reacts under different conditions.

[0042] In this embodiment, the clamping and positioning component 1004 includes a strip-shaped sliding groove 10041, a U-shaped plate 10042, a first limiting plate 10043, a horizontal conductive pressing plate 10044, a screw 10045, an adjusting block 10046 and a second limiting plate 10047. The strip-shaped sliding groove 10041 is opened on both sides of the quartz wafer 1001 along the length direction of the quartz wafer 1001. The U-shaped plates 10042 are respectively arranged at both ends of the quartz wafer 1001. The first limiting plates 10043 are fixed to the inner sides of the U-shaped plates 10042. The first limiting plates 10043 are inside the strip-shaped sliding groove 10041, and the thickness of the first limiting plate 10043 is less than the height of the strip-shaped sliding groove 10041. The horizontal conductive pressing plates 10044 are vertically slidably arranged inside the U-shaped plates 10042. The screws 10045 are threadedly installed on the tops of the U-shaped plates 10042. The bottom ends of the screws 10045 are threadedly connected to the horizontal conductive pressing plates 10044. The top ends of the screws 10045 are respectively provided with adjusting blocks 10046. The second limiting plates 10047 are fixed to the inner bottom ends of the U-shaped plates 10042, and the second limiting plates 10047 are respectively attached to the bottoms of the support sliding rods 9.

[0043] Local working principle: After the sample is placed and the position of the quartz plate 1001 is adjusted, the shaped plate 10042 is moved to the two ends of the carbon cloth 1002 respectively, and then the screw 10045 is rotated to control the horizontal conductive plate 10044 to move downward, and the carbon cloth 1002 and the carbon felt 1003 are squeezed and fixed. During the squeezing process, the shaped plate 10042 will rise to a certain extent, and the shaped plate 10042 will drive the second limit plate 10047 to move upward, and fit tightly with the bottom of the supporting slide rod 9, thereby fixing the position of the quartz plate 1001.

[0044] In this embodiment, the top of the second limiting plate 10047 is arc-shaped, and the length of the second limiting plate 10047 is the same as the length of the end of the curved plate 10042.

[0045] Partial working principle: The arc-shaped design of the top of the second limiting plate 10047 can increase the contact area with the supporting slide rod 9 and ensure the installation stability of the quartz plate 1001.

[0046] In this embodiment, the conductive mechanism 11 includes a conductive ring 1101, a fixed rod 1102, a conductive rod 1103, a V-shaped conductive plate 1104 and a conductive wire 1105. The conductive ring 1101 is installed on the inner side of the front atmosphere protection plug 4 and the rear atmosphere protection plug 5. The conductive rods 1103 are respectively installed at both ends of the two sides of the quartz tube 3. The fixed rods 1102 are fixed between the conductive rods 1103 and the inner wall of the quartz tube 3. The ends of the two groups of conductive rods 1103 are respectively in contact with the two groups of conductive rings 1101. V-shaped conductive plates 1104 are obliquely arranged on different sides of the two groups of V-shaped plates 10042. Conductive wires 1105 are arranged between the V-shaped conductive plates 1104 and the horizontal conductive plates 10044. The two groups of V-shaped conductive plates 1104 are respectively in contact with the two groups of conductive rods 1103.

[0047] Local working principle: During the process of inserting the sample loading reaction mechanism 10, the V-shaped conductive plates 1104 on the sides of the two sets of V-shaped plates 10042 will first contact the conductive rod 1103 and move along the length direction of the conductive rod 1103. At this time, the circuit is not conductive. After the rear atmosphere protection plug 5 is completely installed, the two sets of conductive rods 1103 will contact the conductive rings 1101 on the rear atmosphere protection plug 5 and the front atmosphere protection plug 4 respectively. At this time, the circuit is in a conductive state, which can ensure the safety of the equipment during use.

[0048] In this embodiment, the conductive ring 1101 , the conductive rod 1103 , the V-shaped conductive plate 1104 and the horizontal conductive plate 10044 are made of the same material, namely, copper. The inner side of the V-shaped conductive plate 1104 is arc-shaped.

[0049] Partial working principle: The use of red copper makes the device have good conductivity, and the arc-shaped setting on the inner side of the V-shaped conductive plate 1104 can reduce the friction between it and the conductive rod 1103.

[0050] In this embodiment, the locking mechanism 8 includes a mounting hole 801, an L-shaped groove 802 and a block 803. The mounting holes 801 are arranged in a rectangular shape on the mounting plate 7. The rear atmosphere protection plugs 5 pass through the inside of the mounting holes 801 respectively. The inside of the mounting holes 801 is provided with an L-shaped groove 802, and the outer side of the rear atmosphere protection plug 5 is circumferentially provided with a block 803 that cooperates with the L-shaped groove 802.

[0051] Partial working principle: When installing a single rear atmosphere protection plug 5, align the block 803 on the outside of the rear atmosphere protection plug 5 with the L-shaped slide groove 802 and then insert it. After the insertion is completed, rotate the rear atmosphere protection plug 5 to complete the installation of the rear atmosphere protection plug 5. When the rear atmosphere protection plug 5 needs to be disassembled, first rotate the rear atmosphere protection plug 5 to align the block 803 with the outer end of the L-shaped slide groove 802, and then it can be pulled out horizontally.

[0052] In this embodiment, the outer edge of the rear atmosphere protection plug 5 is evenly provided with anti-slip grooves in the circumferential direction, and the clamping blocks 803 on the outer side of the rear atmosphere protection plug 5 are all provided with four groups.

[0053] Partial working principle: the anti-slip grooves on the outer side of the rear atmosphere protection plug 5 can facilitate the rotation control of the rear atmosphere protection plug 5, and the arrangement of multiple groups of clamping blocks 803 ensures the positioning stability of the rear atmosphere protection plug 5.

[0054] In this embodiment, an annular slide groove 901 is provided on the inner side of the rear atmosphere protection plug 5 , a slip ring 902 is rotatably installed inside the annular slide groove 901 , and the ends of the supporting slide rods 9 are fixed on the slip ring 902 .

[0055] Partial working principle: During the rotation of the rear atmosphere protection plug 5 , the slip ring 902 will rotate under the gravity of the supporting slide rod 9 to ensure the stability of the sample loading reaction mechanism 10 on the supporting slide rod 9 .

[0056] In this embodiment, the inner shape of the annular groove 901 is an arc shape, the slip ring 902 is located inside the arc shape, and the cross-sectional diameter of the slip ring 902 is greater than the width of the outer end of the annular groove 901 .

[0057] Partial working principle: prevent the slip ring 902 from falling out of the annular groove 901 during use.

[0058] In this embodiment, two groups of telescopic cylinders 6 are provided, and the telescopic cylinders 6 are symmetrically arranged on both sides of the insulating and heat-insulating base 1 .

[0059] Partial working principle: The translation of the mounting plate 7 is controlled simultaneously by two sets of telescopic cylinders 6, thereby ensuring the stability of the translation.

[0060] The above description is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the scope disclosed by the present invention, which belong to the protection scope of the present invention.

Claims

1. A flash-heat sample loading reaction device for preparing uniform nanoparticles, comprising an insulating and heat-insulating base (1) and a quartz box (2) mounted on top of the insulating and heat-insulating base (1), characterized in that: A quartz tube (3) is installed in a rectangular arrangement between the two ends of the quartz box (2), one end of each quartz tube (3) is provided with a front atmosphere protection plug (4), and the other end of each quartz tube (3) is provided with a rear atmosphere protection plug (5), and a vent hole (13) is provided at a middle position between the front atmosphere protection plug (4) and the rear atmosphere protection plug (5), and a telescopic cylinder (6) is installed at one end of the insulating and heat-insulating base (1) close to the rear atmosphere protection plug (5), and a mounting plate (7) is vertically installed at the output end of the telescopic cylinder (6), and the rear atmosphere protection plug (5) is provided with a rear atmosphere protection plug (5). The protective plugs (5) all pass through the inside of the mounting plate (7), a locking mechanism (8) for positioning the rear atmosphere protective plugs (5) is provided on the mounting plate (7), support slide rods (9) are symmetrically installed on the inner side of the rear atmosphere protective plugs (5), and a sample loading reaction mechanism (10) is slidably installed on the support slide rods (9), a conductive mechanism (11) is provided inside the quartz tube (3), and infrared thermometers (12) are vertically installed on the top and both sides of the quartz box (2), and the infrared thermometers (12) correspond to the quartz tubes (3) respectively; The sample loading reaction mechanism (10) comprises a quartz plate (1001), a carbon cloth (1002), a carbon felt (1003) and a clamping and positioning assembly (1004); the quartz plate (1001) is slidably arranged on the top of the supporting slide rod (9); the carbon cloth (1002) is arranged on the top of the quartz plate (1001); two groups of carbon cloth (1002) are arranged; a carbon felt (1003) is arranged between the two groups of carbon cloth (1002); two groups of carbon felt (1003) are arranged; a sample is arranged between the two groups of carbon felt (1003); and a clamping and positioning assembly (1004) for positioning the quartz plate (1001), the carbon cloth (1002) and the carbon felt (1003) is arranged at the end of the quartz plate (1001); The clamping and positioning assembly (1004) includes a strip-shaped sliding groove (10041), a U-shaped plate (10042), a first limiting plate (10043), a horizontal conductive pressing plate (10044), a screw (10045), an adjusting block (10046) and a second limiting plate (10047). The strip-shaped sliding groove (10041) is opened on both sides of the quartz sheet (1001) along the length direction of the quartz sheet (1001). The U-shaped plates (10042) are respectively arranged at both ends of the quartz sheet (1001). The first limiting plates (10043) are fixed to the inner sides of the U-shaped plates (10042). The first limiting plates (10043) are inside the strip-shaped sliding groove (10041), and the thickness of the first limiting plate (10043) is less than the height of the strip-shaped sliding groove (10041). The horizontal conductive pressing plates (10044) are vertically slidably arranged inside the U-shaped plates (10042). The screws (10045) are threadedly installed at the tops of the U-shaped plates (10042). The bottom ends of the screws (10045) are threadedly connected to the horizontal conductive pressing plates (10044). The adjusting blocks (10046) are installed at the top ends of the screws (10045). The second limiting plates (10047) are fixed to the inner bottom ends of the U-shaped plates (10042), and the second limiting plates (10047) are respectively attached to the bottoms of the support sliding rods (9).

2. A flash-heat sample loading reaction device for preparing uniform nanoparticles according to claim 1, characterized in that: The top of the second limiting plate (10047) is arc-shaped, and the length of the second limiting plate (10047) is the same as the length of the end of the U-shaped plate (10042).

3. A flash-heat sample loading reaction device for preparing uniform nanoparticles according to claim 2, characterized in that: The conductive mechanism (11) includes a conductive ring (1101), a fixed rod (1102), a conductive rod (1103), a V-shaped conductive plate (1104) and a conductive wire (1105). The conductive ring (1101) is installed inside the front atmosphere protection plug (4) and the rear atmosphere protection plug (5). The conductive rods (1103) are respectively installed at both ends on both sides of the quartz tube (3). The fixed rods (1102) are fixed between the conductive rods (1103) and the inner wall of the quartz tube (3). The end parts of the two groups of conductive rods (1103) are respectively in contact with the two groups of conductive rings (1101). The V-shaped conductive plates (1104) are obliquely arranged on different sides of the two groups of U-shaped plates (10042). The conductive wires (1105) are arranged between the V-shaped conductive plates (1104) and the horizontal conductive pressing plates (10044). The two groups of V-shaped conductive plates (1104) are respectively in contact with the two groups of conductive rods (1103).

4. A flash-heat sample loading reaction device for preparing uniform nanoparticles according to claim 3, characterized in that: The conductive ring (1101), the conductive rod (1103), the V-shaped conductive plate (1104) and the horizontal conductive pressing plate (10044) are made of the same material, which is copper material. The inner side of the V-shaped conductive plate (1104) is arc-shaped.

5. A flash-heat sample loading reaction device for preparing uniform nanoparticles according to claim 1, characterized in that: The locking mechanism (8) comprises a mounting hole (801), an L-shaped slide groove (802) and a clamping block (803); the mounting holes (801) are arranged in a rectangular shape on the mounting plate (7); the rear atmosphere protection plugs (5) respectively pass through the inside of the mounting holes (801); the inside of the mounting holes (801) is provided with an L-shaped slide groove (802); and the outer side of the rear atmosphere protection plug (5) is provided with a clamping block (803) that cooperates with the L-shaped slide groove (802) along the circumferential direction.

6. A flash-heat sample loading reaction device for preparing uniform nanoparticles according to claim 5, characterized in that: The outer edge of the rear atmosphere protection plug (5) is evenly provided with anti-slip grooves in the circumferential direction, and four groups of clamping blocks (803) are provided on the outer side of the rear atmosphere protection plug (5).

7. A flash-heat sample loading reaction device for preparing uniform nanoparticles according to claim 6, characterized in that: An annular slide groove (901) is provided on the inner side of the rear atmosphere protection plug (5), a slip ring (902) is rotatably installed inside the annular slide groove (901), and the end of the supporting slide rod (9) is fixed on the slip ring (902).

8. A flash-heat sample loading reaction device for preparing uniform nanoparticles according to claim 7, characterized in that: The inner shape of the annular slide groove (901) is an arc shape, the slip ring (902) is located inside the arc shape, and the cross-sectional diameter of the slip ring (902) is greater than the width of the outer end of the annular slide groove (901).

9. A flash-heat sample loading reaction device for preparing uniform nanoparticles according to claim 1, characterized in that: Two groups of telescopic cylinders (6) are provided, and the telescopic cylinders (6) are symmetrically arranged on both sides inside the insulating and heat-insulating base (1).

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