Controllable atmosphere Joule thermal reaction device

Abstract

The utility model discloses a controllable atmosphere Joule thermal reaction device which comprises a support and U-shaped clamps arranged on the two sides of the top face of the support, an adjusting mechanism is arranged on the surfaces of the U-shaped clamps, the distance between the two U-shaped clamps is adjusted through the adjusting mechanism, a clamping mechanism is arranged on the surfaces of the U-shaped clamps, and the clamping mechanism is arranged on the top face of the support. And the conductive resistor and the reaction material are clamped and fixed through the clamping mechanism. The utility model relates to the technical field of functional material preparation. According to the controllable atmosphere Joule thermal reaction device, the gas inlet pipe is introduced to the bottom of the conductive resistor for generating Joule heat, and the sealing box is additionally arranged outside the Joule thermal reactor, so that the aim of controlling the reaction atmosphere is achieved, the atmosphere can directly act on the conductive resistor and a material to be prepared, and the controllable atmosphere Joule thermal reaction device has the advantage of high atmosphere controllability.

Description

TECHNICAL FIELD

[0001] The utility model relates to functional material preparation technical field, concretely is a controllable atmosphere joule heat reaction device. BACKGROUND

[0002] Joule heat is a phenomenon that heat can be generated when electric current passes through a conductor, which was discovered by British scientist Joule in 1841. In recent years, researchers have continuously applied the phenomenon of joule heat to the preparation of materials, such as carbon nanometer powder, nitrogen-doped carbon material, and iron oxide film photoelectric electrode. In order to drive the synthesis and preparation of materials with the heat generated by joule heat, the materials must be in direct contact with the conductive resistance that generates joule heat. In addition, the preparation of many functional materials needs to be carried out under the protection of inert atmosphere, or the preparation of materials needs to react with reactive gas.

[0003] The existing joule heat reaction device usually only focuses on the clamping of the reaction material, and the control of the atmosphere during the reaction is poor. At present, it is urgent to construct a device that can control the atmosphere during the preparation of joule heat materials, so as to expand the application of joule heat technology in the field of functional material preparation. Therefore, in view of the above-mentioned deficiencies, the utility model makes the following improvements. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a controllable atmosphere joule heat reaction device, which solves the problems mentioned in the background art.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a controllable atmosphere joule heat reaction device, comprising a support and a U-shaped clamp arranged on the top surface of the support, the surface of the U-shaped clamp is provided with an adjusting mechanism, the spacing of the two U-shaped clamps is adjusted through the adjusting mechanism, the surface of the U-shaped clamp is provided with a clamping mechanism, and the conductive resistance and the reaction material are clamped and fixed through the clamping mechanism.

[0006] It also includes a sealed box, and the top surface of the sealed box is provided with a gas pressure gauge, the surface of the sealed box is communicated with a gas pipeline and an exhaust pipeline, the gas pipeline includes an inlet pipe, and the inside of the inlet pipe is provided with a first gas valve, one end of the inlet pipe inside the sealed box is communicated with a conical pipe, and the inside of the conical pipe is provided with a porous insulating ceramic sheet, the gas is transported into the sealed box through the inlet pipe, and the porous insulating ceramic sheet in the conical pipe uniformly disperses the gas on the reaction material.

[0007] Preferably, the exhaust pipeline includes an outlet pipe communicated with one side of the sealed box, and the inside of the outlet pipe is provided with a second gas valve.

[0008] Preferably, the adjustment mechanism includes a fixed end fixedly disposed on one side of the bracket, a threaded rod rotatably disposed inside the bracket, and a knob fixedly connected to one end of the threaded rod located outside the bracket, the other end of the threaded rod being rotatably connected to the surface of the fixed end, a slider being threadedly disposed on the surface of the threaded rod, and the bottom surface of the slider being slidably connected to the inner wall of the bracket through a limiting block.

[0009] Preferably, an insulating block is fixedly provided on the top surface of both the slider and the fixed end, and the bottom surfaces of the two U-shaped clamps are respectively fixedly connected to the top surfaces of the two insulating blocks.

[0010] Preferably, the clamping mechanism includes a clamping screw threaded into the U-shaped clamp, and a metal plate is provided at the bottom end of the clamping screw.

[0011] Preferably, the surface of the U-shaped clip is provided with wiring screws.

[0012] Preferably, a fixing block is provided on each of the two insulating blocks on opposite sides to provide stable support for the tapered tube.

[0013] Preferably, the bracket, U-shaped clamp, adjustment mechanism, and clamping mechanism are all located inside the sealed box.

[0014] Beneficial effects

[0015] This invention provides a controllable atmosphere Joule heating apparatus. Compared with the prior art, it has the following advantages:

[0016] (1) The controllable atmosphere Joule heating reaction device achieves the purpose of controlling the reaction atmosphere by introducing an air inlet pipe at the bottom of the conductive resistor that generates Joule heat and installing a sealed box outside the Joule heating reactor. The atmosphere can directly act on the conductive resistor and the material to be prepared, and has the advantage of strong atmosphere controllability.

[0017] (2) The controllable atmosphere Joule heating reaction device, through the setting of clamping mechanism and adjustment mechanism, can automatically adjust according to the conductive resistance and the size of the reaction material, and realize the stable clamping of conductive resistance and reaction material, laying the foundation for subsequent control of reaction atmosphere. Attached Figure Description

[0018] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0019] Fig. 2 This is a schematic diagram of the structure of the porous insulating ceramic sheet of this utility model.

[0020] In the diagram: 1. Support; 12. Insulating block; 13. Slider; 14. Fixed end; 15. Threaded rod; 16. Knob; 2. U-shaped clamp; 21. Clamping screw; 22. Wiring screw; 23. Metal plate; 31. Wire; 32. Switch; 33. Power supply; 41. Sealed box; 42. Pressure gauge; 51. Inlet pipe; 52. First gas valve; 53. Fixing block; 54. Porous insulating ceramic sheet; 61. Outlet pipe; 62. Second gas valve; 7. Reaction material; 8. Conductive resistor. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figs. 1-2 As shown, this utility model provides a technical solution, with specific improvements as follows:

[0024] A controllable atmosphere Joule heating reaction device includes a support 1 and U-shaped clamps 2 disposed on both sides of the top surface of the support 1. The surface of the U-shaped clamps 2 is provided with an adjustment mechanism to adjust the distance between the two U-shaped clamps 2. The U-shaped clamps 2 are provided with a clamping mechanism inside to clamp and fix a conductive resistor 8 and a reaction material 7. The conductive resistor 8 can be graphite felt or graphite paper, etc.

[0025] It also includes a sealed box 41, and a pressure gauge 42 is provided on the top surface of the sealed box 41 to monitor the pressure inside the sealed box 41. The surface of the sealed box 41 is connected to a gas supply pipe and an exhaust pipe. The gas supply pipe includes an inlet pipe 51, and a first gas valve 52 is provided inside the inlet pipe 51. One end of the inlet pipe 51 located inside the sealed box 41 is connected to a tapered pipe, and a porous insulating ceramic sheet 54 is provided inside the tapered pipe. Gas is supplied to the inside of the sealed box 41 through the inlet pipe 51, and the gas is evenly dispersed on the reaction material 7 by the porous insulating ceramic sheet 54 inside the tapered pipe. The exhaust pipe includes an outlet pipe 61 connected to one side of the sealed box 41, and a second gas valve 62 is provided inside the outlet pipe 61.

[0026] The bracket 1, U-shaped clamp 2, adjustment mechanism and clamping mechanism are all located inside the sealed box 41;

[0027] When the reactant 7 is a titanium dioxide thin film, graphite felt is used as the conductive resistor 8. Before turning on the power supply 33 and the switch 32, argon gas is introduced into the sealed box 41 through the gas inlet pipe 51 for 20 minutes. The argon gas is transported to the conductive resistor 8 and the reactant 7 through the conical tube and the porous insulating ceramic sheet 54. While maintaining the gas flow, the power supply 33 and the switch 32 are turned on and a DC voltage of 100 volts is provided. After the current is maintained for 1 minute, the power supply 33 and the switch 32 are turned off. After the system cools down, a titanium dioxide thin film rich in oxygen vacancies can be obtained.

[0028] Example 2

[0029] Based on Example 1, please refer to Figs. 1-2 As shown, the specific improvements are as follows:

[0030] The adjustment mechanism includes a fixed end 14 fixedly disposed on one side of the bracket 1. A threaded rod 15 is rotatably disposed inside the bracket 1, and a knob 16 is fixedly connected to one end of the threaded rod 15 located outside the bracket 1. The other end of the threaded rod 15 is rotatably connected to the surface of the fixed end 14. A slider 13 is threadedly disposed on the surface of the threaded rod 15, and the bottom surface of the slider 13 is slidably connected to the inner wall of the bracket 1 through a limiting block. An insulating block 12 is fixedly disposed on the top surface of both the slider 13 and the fixed end 14. The bottom surfaces of the two U-shaped clips 2 are respectively fixedly connected to the top surfaces of the two insulating blocks 12.

[0031] The clamping mechanism includes a clamping screw 21 threaded into the U-shaped clamp 2, and a metal plate 23 is provided at the bottom end of the clamping screw 21. A wiring screw 22 is provided on the surface of the U-shaped clamp 2. It also includes a wire 31, a switch 32, and a power supply 33. The wire 31, switch 32, and power supply 33 together with the conductive resistor 8 clamped by the clamping screw 21 and the metal plate 23 form a current loop. The power supply 33 can be a DC power supply, an AC power supply, or a capacitor. A fixing block 53 is provided on each of the two insulating blocks 12 on opposite sides. The fixing block 53 can be extended and adjusted to provide stable support for the tapered tube. The U-shaped clamp 2, the clamping screw 21, and the metal plate 23 are all made of metal materials with low resistivity, such as stainless steel.

[0032] The operator rotates the threaded rod 15 by turning the knob 16, causing the threaded rod 15 to rotate on the surface of the fixed end 14. At this time, the slider 13 will drive the insulating block 12 on its top surface to move along the surface of the bracket 1, thereby adjusting the distance between the two U-shaped clamps 2 according to the size of the conductive resistor 8 and the reactive material 7. After adjustment, the conductive resistor 8 and the reactive material 7 are placed on the bottom surface of the metal plate 23 in sequence, and the clamping screw 21 is turned, so that the clamping screw 21 controls the metal plate 23 to move down, thereby achieving clamping and fixing of the conductive resistor 8 and the reactive material 7.

[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A controllable atmosphere joule heating reaction apparatus, characterized by: The utility model provides a kind of electric resistance reaction device, including support (1) and the U-shaped clamp (2) being arranged on the top surface of support (1), the surface of the U-shaped clamp (2) is provided with adjusting mechanism, the interval of two U-shaped clamps (2) is adjusted by adjusting mechanism, the surface of the U-shaped clamp (2) is provided with clamping mechanism, and electric resistance (8) and reaction material (7) are clamped and fixed by clamping mechanism. Further comprising a sealed box (41), and the top surface of the sealed box (41) is provided with a barometer (42), the surface of the sealed box (41) is communicated with a gas pipeline and an exhaust pipeline, the gas pipeline comprises an inlet pipe (51), and the inside of the inlet pipe (51) is provided with a first gas valve (52), the inlet pipe (51) is communicated with a conical pipe at one end inside the sealed box (41), and the inside of the conical pipe is provided with a porous insulating ceramic sheet (54), the gas is transported into the sealed box (41) through the inlet pipe (51), and the gas is uniformly dispersed on the reaction material (7) by the porous insulating ceramic sheet (54) inside the conical pipe.

2. A controllable atmosphere joule heating reaction apparatus according to claim 1, wherein: The exhaust pipeline comprises an outlet pipe (61) communicated with one side of the sealed box (41), and the inside of the outlet pipe (61) is provided with a second gas valve (62).

3. A controllable atmosphere joule heating reaction apparatus according to claim 1, wherein: The adjusting mechanism comprises a fixed end (14) fixedly arranged on one side of the support (1), a threaded rod (15) rotatably arranged inside the support (1), and a knob (16) fixedly connected to one end of the threaded rod (15) outside the support (1), the other end of the threaded rod (15) is rotatably connected to the surface of the fixed end (14), the surface of the threaded rod (15) is screwedly provided with a sliding block (13), and the bottom surface of the sliding block (13) is slidably connected to the inner wall of the support (1) through a limiting block.

4. A controllable atmosphere joule heating reaction apparatus according to claim 3, wherein: The top surface of the sliding block (13) and the fixed end (14) is fixedly provided with an insulating block (12), and the bottom surface of the two U-shaped clamps (2) is fixedly connected to the top surface of the two insulating blocks (12).

5. A controllable atmosphere joule heating reaction apparatus as defined in claim 1, wherein: The clamping mechanism comprises a compression screw (21) screwedly connected to the inside of the U-shaped clamp (2), and the bottom end of the compression screw (21) is provided with a metal flat plate (23).

6. A controllable atmosphere joule heating reaction apparatus according to claim 5, wherein: The surface of the U-shaped clamp (2) is provided with a wiring screw (22).

7. A controllable atmosphere joule heating reaction apparatus as claimed in claim 4, wherein: The opposite sides of the two insulating blocks (12) are provided with a fixed block (53), and the conical pipe is stably supported by the fixed block (53).

8. A controllable atmosphere joule heating reaction apparatus as defined in claim 1, wherein: The support (1), the U-shaped clamp (2), the adjusting mechanism and the clamping mechanism are arranged inside the sealed box (41).

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