Metal heat exchange surface microwave defrosting experimental device

Abstract

The utility model discloses a metal heat exchange surface microwave defrosting experimental device, and belongs to the technical field of defrosting. The device is used for a researcher to carry out an experiment on the influence of different coatings on the microwave defrosting efficiency. A rotating table is arranged in the bottom surface of the box body, a microwave generator is arranged in the side wall of the box body, a plurality of reaction kettles are annularly and uniformly distributed and placed on the rotating table, a plurality of coating materials are respectively placed in the plurality of reaction kettles, and a plurality of communicating pipes hermetically penetrate through through holes formed in a driven table from the upper part and are hermetically connected with the reaction kettles; and thermocouples of the plurality of thermocouple thermometers are hermetically inserted into the corresponding communicating pipes. According to the utility model, a plurality of reaction kettles are arranged, various coating materials can be heated by microwaves at the same time, the rotating table is arranged, so that the coating materials rotate at a constant speed in the heating process, the purposes that each coating material is uniformly heated and is in the same environment are achieved, vacuum treatment is carried out in the reaction kettles through the vacuum pump, and the experiment precision is ensured. When the device is used for experiments, the efficiency is high, and the precision is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of defrosting, and particularly relates to a microwave defrosting experimental device for a metal heat exchange surface. Background Technique

[0002] Microwave heating is a technology that uses an external alternating electromagnetic field to excite the polarization of polar molecules inside a medium. By changing the original random distribution of molecules, microwave heating triggers a large amount of heat energy release. This heating method has many advantages, including fast, efficient, and selective heating. Compared with the traditional heat conduction method, microwave heating can achieve rapid and uniform heating effects, and does not rely on the traditional heat conduction process, so it is widely applicable in various application scenarios, such as the field of defrosting.

[0003] At present, the microwave heating technology is applied to the defrosting of air source heat pumps.

[0004] However, in the current research on the characteristics of microwave defrosting using the microwave heating principle, there is no study on the influence of different coatings on the metal heat exchange surface on the microwave defrosting efficiency. Therefore, providing a microwave defrosting experimental device for a metal heat exchange surface for researchers to use is a technical problem that needs to be solved urgently by those skilled in the art. Content of the Utility Model

[0005] The purpose of the utility model is to provide a microwave defrosting experimental device for a metal heat exchange surface, which is used for researchers to conduct experiments on the influence of different coatings on the microwave defrosting efficiency.

[0006] The technical solution adopted by the utility model is as follows:

[0007] The microwave defrosting experimental device for a metal heat exchange surface includes a plug, a box body, a rotating table, a control display screen, a driven table, a microwave generator, a plurality of reaction kettles, a plurality of connecting pipes, and a plurality of thermocouple thermometers; the rotating table is built in the bottom surface of the box body, the driven table is built in the top surface of the box body, the microwave generator is built in the side wall of the box body, and the microwave generator is connected to the power supply through the plug, and the control display screen of the microwave generator is arranged on the outer surface of the box body. The plurality of reaction kettles are annularly and evenly placed on the rotating table, and various coating materials are respectively placed in the plurality of reaction kettles. The plurality of connecting pipes are hermetically inserted through the through holes provided on the driven table from above and are hermetically connected to the reaction kettles. The thermocouples of the plurality of thermocouple thermometers are hermetically inserted into the corresponding connecting pipes, and the temperature display instruments of the thermocouple thermometers are placed on the driven table.

[0008] The utility model has the following beneficial effects compared with the prior art:

[0009] The utility model is provided with multiple reaction kettles, which can microwave-heat multiple coating materials simultaneously, and a rotating table is set to make the coating materials rotate at a constant speed during the heating process, so as to achieve the purpose of making each coating material receive uniform heat and be in the same environment. The utility model performs vacuum treatment on the reaction kettle through a vacuum pump to ensure the precision of the experiment.

[0010] Using the utility model for experiments has high efficiency and high precision. Brief Description of the Drawings

[0011] Figure 1 is a schematic structural diagram of the utility model;

[0012] Figure 2 is a schematic structural diagram of the rotating table of the utility model;

[0013] Figure 3 is a schematic connection diagram of the main pipe and the connecting pipe of the utility model;

[0014] Figure 4 is a schematic diagram of the driven table of the utility model;

[0015] Wherein: 1. Plug; 2. Power monitor; 3. Box body; 4. Rotating table; 401. Rotating table board; 402. Rotating motor; 403. Annular insertion board; 5. Control display screen; 6. Coating material; 7. Reaction kettle; 8. Lifting device; 9. Temperature display instrument; 10. Connecting pipe; 11. Thermocouple; 12. Branch pipe; 13. Main pipe; 14. Rotary joint; 15. Control valve; 16. Pipe 1; 17. Sealing window; 18. Condensing pipe; 19. Cooling water tank; 20. Pipe 2; 21. Vacuum pump; 22. Driven table. Detailed Embodiment

[0016] In order to better understand the purpose, structure and function of the utility model, the following further detailed description of the utility model is made in conjunction with the drawings.

[0017] Such as Figures 1 to 4As shown in the figure, the present utility model provides a microwave defrosting experimental device for a metal heat exchange surface, which includes a plug 1, a box body 3, a rotating table 4, a control display screen 5, a driven table 22, a microwave generator, a plurality of reaction kettles 7, a plurality of connecting pipes 10 and a plurality of thermocouple thermometers; the rotating table 4 is built in the bottom surface of the box body 3, the driven table 22 is built in the top surface of the box body 3, the microwave generator is built in the side wall of the box body 3, and the microwave generator is connected to the power supply through the plug 1, and the control display screen 5 of the microwave generator is arranged on the outer surface of the box body 3. The plurality of reaction kettles 7 are annularly and evenly placed on the rotating table 4, and various coating materials 6 are respectively placed in the plurality of reaction kettles 7. The plurality of connecting pipes 10 are hermetically inserted through the through holes provided on the driven table 22 from above and are hermetically connected to the reaction kettles 7. The thermocouples 11 of the plurality of thermocouple thermometers are hermetically inserted into the corresponding connecting pipes 10, and the temperature display instruments 9 of the thermocouple thermometers are placed on the driven table 22.

[0018] As Figure 1 shown, the microwave defrosting experimental device for the metal heat exchange surface further includes a main pipe 13, a rotary joint 14, a control valve 15, a pipe 16, a condenser 18, a cooling water tank 19, a pipe 20, a vacuum pump 21 and a plurality of branch pipes 12; the main pipe 13 is communicated with the corresponding connecting pipes 10 through the plurality of branch pipes 12, the main pipe 13 is communicated with one end of the pipe 16 through the rotary joint 14, a control valve 15 is installed on the pipe 16, the other end of the pipe 16 is communicated with one end of the condenser 18, the condenser 18 is placed in the cooling water tank 19 with cooling water, the other end of the condenser 18 is communicated with one end of the pipe 20, and the other end of the pipe 20 is connected to the vacuum pump 21.

[0019] As Figure 1 shown, the cooling water tank 19 is installed on the lifting device 8. The height thereof is adjusted by the lifting device 8 to facilitate the experiment.

[0020] The specific structure of the lifting device 8 is not limited, and those skilled in the art can select it from the prior art according to needs.

[0021] As Figure 2 shown, the rotating table 4 includes a rotating table plate 401 and a rotating motor 402; a circular installation groove is opened on the lower bottom plate of the box body 3, and a motor installation groove is opened at the center of the circular installation groove. The rotating motor 402 is installed in the motor installation groove. The rotating table plate 401 is a circular plate, the rotating table plate 401 is placed in the circular installation groove of the box body 3, and the rotating table plate 401 is fixedly connected to the output shaft of the rotating motor 402 and is driven to rotate by the rotating motor 402.

[0022] As Figure 2As shown, an annular insertion plate 403 is integrally connected to the bottom surface of the rotary table plate 401. An annular slot matching the annular insertion plate 403 is provided in the circular installation groove of the box body 3. The rotary table plate 401 realizes rotary positioning through the annular insertion plate 403 and the annular slot.

[0023] As Figure 3 , Figure 4 shown, the main body of the driven table 22 is a circular plate, and a plurality of annularly distributed through holes are provided thereon for inserting the connecting pipe 10. A circular hole is provided on the top plate of the box body 3, and a circular protrusion is provided at the lower end of the circular hole. The circular protrusion is used to support the driven table 22.

[0024] As Figure 4 shown, an annular notch matching the annular protrusion is provided at the outer edge of the lower bottom surface of the driven table 22. The driven table 22 is inserted on the box body 3 through the annular notch.

[0025] As Figure 1 shown, a power monitor 2 is connected to the wire of the plug 1.

[0026] As Figure 1 shown, a sealed window 17 is provided on the switch door of the box body 3.

[0027] Usage method:

[0028] During the experiment, weigh the coating material 6 (20 g ± 0.2 g) of the same mass with an electronic balance respectively, transfer it into the reaction kettle 7 by using a funnel, connect the experimental device, start the vacuum pump 21, evacuate for 10 min, check the airtightness of the whole experimental device, wrap the heat-insulating cotton around the reaction kettle 7, turn on the switch of the microwave generator, adjust the power to 500 W, and start heating. During the experiment, the vacuum pump 21 keeps working, and the temperature is read through the temperature display instrument 9 every 10 s. When the experiment proceeds for two minutes, turn off the microwave generator, the experiment ends, and the experimental device is disassembled. To reduce the experimental error, each group of experiments is repeated 3 times, and a set of the most stable data is taken.

[0029] During the experiment, start the rotary motor 402 to drive the rotary table plate 401 and the reaction kettle 7 thereon to rotate, so as to heat it evenly. During the rotation of the reaction kettle 7, the connecting pipe 10 and the driven table 22 are driven to rotate.

[0030] It can be understood that the present utility model is described by means of some embodiments. Those skilled in the art will be aware that, without departing from the spirit and scope of the present utility model, various changes or equivalent substitutions can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the present utility model.

Claims

1. A microwave defrosting experimental device for metal heat exchange surfaces, characterized in that: The invention comprises a plug (1), a box (3), a rotating table (4), a control display screen (5), a driven table (22), a microwave generator, a plurality of reaction kettles (7), a plurality of connecting pipes (10) and a plurality of thermocouple thermometers; the rotating table (4) is built into the bottom surface of the box (3), the driven table (22) is built into the top surface of the box (3), the microwave generator is built into the side wall of the box (3), and the microwave generator is connected to a power source through the plug (1), and a control display screen (5) of the microwave generator is arranged on the outer surface of the box (3); the plurality of reaction kettles (7) are evenly distributed in an annular shape on the rotating table (4), a plurality of coating materials (6) are respectively placed in the plurality of reaction kettles (7), the plurality of connecting pipes (10) are sealed from above and pass through through holes provided on the driven table (22) to be sealed and connected to the reaction kettles (7), the thermocouples (11) of the plurality of thermocouple thermometers are sealed and inserted into the corresponding connecting pipes (10), and the temperature display (9) of the thermocouple thermometers is placed on the driven table (22).

2. The metal heat exchange surface microwave defrosting experimental device according to claim 1 is characterized in that: The metal heat exchange surface microwave defrosting experimental device also includes a main pipe (13), a rotary joint (14), a control valve (15), a pipe one (16), a condenser (18), a cooling water tank (19), a pipe two (20), a vacuum pump (21) and a plurality of branch pipes (12); the main pipe (13) is connected to the corresponding connecting pipes (10) through the plurality of branch pipes (12); the main pipe (13) is connected to one end of the pipe one (16) through the rotary joint (14); a control valve (15) is installed on the pipe one (16); the other end of the pipe one (16) is connected to one end of the condenser (18); the condenser (18) is placed in a cooling water tank (19) with cooling water; the other end of the condenser (18) is connected to one end of the pipe two (20); the other end of the pipe two (20) is connected to the vacuum pump (21).

3. The metal heat exchange surface microwave defrosting experimental device according to claim 2 is characterized in that: The cooling water tank (19) is installed on the lifting device (8).

4. The metal heat exchange surface microwave defrosting experimental device according to claim 1 is characterized in that: The rotating table (4) comprises a rotating table plate (401) and a rotating motor (402); a circular mounting groove is provided on the lower bottom plate of the box body (3), and a motor mounting groove is provided at the center of the circular mounting groove, and a rotating motor (402) is installed in the motor mounting groove; the rotating table plate (401) is a circular plate, and the rotating table plate (401) is placed in the circular mounting groove of the box body (3); the rotating table plate (401) is fixedly connected to the output shaft of the rotating motor (402), and is driven to rotate by the rotating motor (402).

5. The metal heat exchange surface microwave defrosting experimental device according to claim 4 is characterized in that: The bottom surface of the rotating table (401) is integrally connected with an annular plug plate (403), and an annular slot matching the annular plug plate (403) is provided in the circular installation groove of the box body (3), and the rotating table (401) is rotated and positioned by the annular plug plate (403) and the annular slot.

6. The metal heat exchange surface microwave defrosting experimental device according to claim 1 is characterized by: The main body of the driven platform (22) is a circular plate, on which a plurality of evenly distributed through holes are provided for inserting the connecting pipe (10); a circular hole is provided on the top plate of the box body (3), and a circle of annular protrusions is provided at the lower end of the circular hole, and the annular protrusions are used to support the driven platform (22).

7. The metal heat exchange surface microwave defrosting experimental device according to claim 6, characterized in that: An annular notch matching the annular protrusion is provided on the outer edge of the lower bottom surface of the driven platform (22), and the driven platform (22) is plugged into the box body (3) through the annular notch.

8. The metal heat exchange surface microwave defrosting experimental device according to claim 1 is characterized by: An electric power monitor (2) is connected to the wire of the plug (1).

9. The metal heat exchange surface microwave defrosting experimental device according to claim 1, characterized in that: A sealing window (17) is provided on the switch door of the box body (3).

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