A liquid metal working medium filling and centrifugal device for enhancing heat transfer process

Abstract

The utility model relates to a liquid metal working fluid filling and centrifugal device for enhancing the heat transfer process. The device includes a working fluid filling device, a rotating part, a filling sample, a counterweight, an electric heating device and a heating box. The working fluid filling device is located outside the heating box and is movable, while the filling sample and the counterweight are located inside the heating box and can rotate with the main shaft. Through this device, liquid metal can be evenly filled in the narrow space of the filling sample (the filling sample can be composed of multiple monomers in a narrow space, with a space gap of 0.05 to 0.5 mm), and the rotating motion can realize the centrifugal effect, further promoting the distribution of the working fluid. This device can effectively improve the heat transfer efficiency of the filling sample.

Description

Technical Field

[0001] The utility model relates to the field of heat transfer, in particular to a liquid metal working medium filling and centrifugal device for strengthening the heat transfer process. Background Art

[0002] Heat transfer is an important field in physics and engineering, involving the process of heat transfer from one object to another or within the same object. It has a wide range of applications in industrial production, energy utilization, environmental protection, etc. In the field of heat transfer, liquid metal has attracted much attention due to its good heat transfer performance. It has the characteristics of high thermal conductivity, high melting point, and low viscosity, and is widely used in various heat transfer equipment and processes, such as the cooling system of electronic equipment, the reactor in the chemical process, the cooling system of the nuclear reactor, etc.

[0003] However, in some special cases, the heat transfer effect of liquid metal may be limited. For example, in micro-devices or microstructures, due to the small space, the traditional liquid metal filling method may not achieve effective heat transfer. In addition, some complex structural shapes may also cause uneven filling of liquid metal, thereby affecting the heat transfer efficiency. Therefore, how to effectively use liquid metal for heat transfer in a small space has become a challenge.

[0004] At present, some solutions have been proposed to improve the heat transfer effect of liquid metal. For example, the heat transfer efficiency can be improved by designing efficient heat dissipation structures, optimizing the flow mode of liquid metal, etc. However, these methods are often limited to specific application scenarios and have limited effects.

[0005] Therefore, a new type of heat transfer device is needed that can achieve uniform filling of liquid metal in a small space and effectively enhance the heat transfer effect. Such a device will help improve the heat transfer efficiency of the equipment, meet the needs of heat transfer performance in different fields, and promote the development and application of heat transfer technology. Summary of the invention

[0006] The utility model aims to realize uniform filling of liquid metal in a narrow space (gap 0.05-0.5mm) and effectively enhance the heat transfer effect, and proposes a liquid metal working medium filling and centrifugal device for enhancing the heat transfer process.

[0007] The technical solution of the utility model is achieved in this way:

[0008] A liquid metal working fluid filling and centrifugal device for enhancing the heat transfer process, comprising a working fluid filling device, a rotating part, a filling sample, a counterweight, an electric heating device, and a heating box; the working fluid filling device is arranged outside the heating box and is movable; the filling sample and the counterweight are placed in the heating box and can rotate with the main shaft.

[0009] A further solution is that the working fluid filling device is provided with a working fluid storage tank and a working fluid melting tank; the working fluid storage tank and the working fluid melting tank are respectively connected to the upper and lower ports reserved for the sample through stainless steel pipes; an interface is provided on the upper side of the working fluid storage tank to connect to the vacuum unit, and an endoscope probe port and an inert gas filling port are provided on the top of the working fluid storage tank; an interface is provided on the upper side of the working fluid melting tank to connect to the vacuum unit, and an endoscope probe port and an inert gas filling port are provided on the top of the working fluid melting tank; the movable joint between the working fluid filling device and the sample connecting pipe is arranged in the heating box to realize the mobility of the working fluid filling device.

[0010] A further solution is that the working fluid melting tank can be used in series in multiples to achieve large-scale filling of working fluid; the working fluid melting tank is heated by an electric heating jacket or an electric heating tape.

[0011] A further solution is that the rotating part includes a motor reducer, gears, a brake reducer, a main shaft, main bearings and fixings, an upper crossbeam, a lower crossbeam, a secondary shaft, a secondary bearing seat, and a main shaft support oil tank; the bottom of the main shaft is inserted into a smooth sphere and vertically placed in the main shaft support oil tank, and the main shaft support oil tank is filled with high-temperature resistant lubricating oil; gears are provided on the main shaft, and the motor reducer drives the main shaft to rotate through the gears; a brake reducer is provided above the main shaft gear; the main shaft passes through the upper and lower main bearings and fixings, and the upper and lower main bearings and fixings are respectively placed on the top and bottom outside of the heating box body; the upper and lower crossbeams are fixed to the main shaft by bolts; secondary bearing seats are provided at both ends of the upper and lower crossbeams, and the secondary shaft is placed in the upper and lower secondary bearing seats.

[0012] A further solution is that the filling sample and the counterweight piece are each fixed on the secondary shaft through the secondary shafts on both sides of the crossbeam; a pin hole is provided at the upper end of the secondary shaft and an internal threaded hole is provided at the top end; a counterweight end support plate and a filling sample end support plate are respectively provided above the counterweight piece and the filling sample, and the counterweight end support plate and the filling sample end support plate are fixed to the upper crossbeam by bolts; a groove is provided on the filling sample end support plate, the groove is arranged at equal angles around the circumference, and the groove width is the same as the pin width.

[0013] A further solution is that the electric heating device is arranged on the inner side of the bottom of the heating box, and the heating method can be an electric heating rod, an electric heating plate, an electric furnace, etc.

[0014] A further solution is that the five sides of the heating box except the bottom are all detachable; the bottom panel of the heating box is provided with an inert gas filling port, and the top panel is provided with an exhaust port and an online oxygen concentration monitor interface; a high-temperature resistant fan is arranged in the heating box; and a plurality of thermocouples are arranged on the inner walls around the heating box.

[0015] Beneficial effects of the utility model

[0016] 1. This device can achieve uniform filling of liquid metal in a narrow space (gap 0.05-0.5mm) and effectively enhance the heat transfer effect. Such a device will help improve the heat transfer efficiency of the equipment, meet the needs of heat transfer performance in different fields, and promote the development and application of heat transfer technology.

[0017] 2. The device first fills the gap of the sample with liquid metal by vacuum filling method, and then uses the method of rotary centrifugation to discharge the liquid metal or the gas in the gap into the channel. Subsequently, the vacuum extraction and working fluid filling process are carried out through the connecting pipeline, and then the rotary centrifugation is carried out again. Through multiple cycles, the gap of the sample is filled with working fluid to achieve the best heat transfer effect.

[0018] 3. An endoscope probe port is provided at the upper end of the working fluid melting tank of the device to observe whether the working fluid in the melting tank has completely entered the sample. This design helps to ensure the accuracy and completeness of the working fluid filling. At the same time, the endoscope can be used to provide timely feedback for the heating and melting of the next working fluid melting tank to ensure the continuous operation of the device. In addition, an endoscope probe port is also provided at the upper end of the working fluid storage tank to observe whether the working fluid is extracted from the storage tank to determine whether the sample is full of working fluid. Through endoscope observation, the operator can promptly discover and solve the problem of insufficient or uneven working fluid filling, thereby ensuring the heat transfer effect and stability of the device.

[0019] 4. The heating box of this device is equipped with an inert gas inlet and an online oxygen concentration monitor to ensure the oxygen concentration in the heating box to prevent oxidation reactions of the samples during the heating process. In addition, a high-temperature resistant fan is installed in the heating box to ensure uniform temperature distribution in the heating box, thereby eliminating the stress caused by uneven temperature during the heating process.

[0020] 5. The supporting plate at the filling sample end of the device is designed with a groove, and an internal threaded hole is set at the top of the secondary shaft to achieve the purpose of rotating the filling sample in the heating box while maintaining the oxygen-free and heated state. This design can ensure that the gas in every corner of the sample can be discharged into the channel by rotating the sample. And this design reduces the time of multiple temperature rises and falls and the experimental cost of multiple inert gas fillings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a liquid metal working medium filling and centrifugal device for enhancing heat transfer process described in the utility model;

[0022] Figure 2 This is a schematic diagram of the working medium filling device described in the utility model;

[0023] Figure 3 This is a schematic diagram of the sample end support plate described in the present utility model.

[0024] In the figure, 1-spindle support oil tank support frame, 2-motor reducer, 3-spindle support oil tank, 4-gear, 5-brake reducer, 6-1 main bearing and lower fixing parts, 6-2 main bearing and upper fixing parts, 7-spindle, 8-electric heating device, 9-heating box, 10-heating box bracket, 11-filling sample, 12-stainless steel pipe, 13-working fluid storage tank, 14-vacuum unit interface, 15-endoscope probe port and inert gas filling port, 16-secondary shaft, 17-upper crossbeam, 18-lower crossbeam, 19-secondary bearing, 20-counterweight end support plate, 21-filling sample end support plate, 22-heating box inert gas inlet, 23-online oxygen concentration monitor interface, 24-exhaust port, 25-working fluid melting tank, 26-high temperature resistant fan, 27-counterweight, 28-groove. DETAILED DESCRIPTION

[0025] An embodiment of a liquid metal working medium filling and centrifugal device for enhancing heat transfer process, such as Figure 1 , Figure 2 As shown, the liquid metal working fluid filling and centrifugal device for enhancing the heat transfer process includes a working fluid filling device, a rotating part, a filling sample 11, a counterweight 27, an electric heating device 8, and a heating box 9; the working fluid filling device is arranged outside the heating box 9 and is movable; the filling sample 11 and the counterweight 27 are placed in the heating box 9 and can rotate with the main shaft 7.

[0026] In this embodiment, Figure 1 , Figure 2 As shown, the working fluid filling device is provided with a working fluid storage tank 13 and a working fluid melting tank 25; the working fluid storage tank 13 and the working fluid melting tank 25 are respectively connected to the upper and lower ports reserved for the filling sample 11 through a stainless steel pipe 12; an interface 14 is provided on the upper side of the working fluid storage tank 13 to connect with the vacuum unit, and an endoscope probe port and an inert gas filling port 15 are provided on the top of the working fluid storage tank 13; an interface 14 is provided on the upper side of the working fluid melting tank 25 to connect with the vacuum unit, and an endoscope probe port and an inert gas filling port 14 are provided on the top of the working fluid melting tank 25; the movable joint of the connecting pipe between the working fluid filling device and the filling sample 11 is arranged in the heating box 9 to realize the mobility of the working fluid filling device.

[0027] In this embodiment, Figure 1 , Figure 2 As shown, the working fluid melting tank 25 can be used in series to realize the filling of large-scale working mass; the working fluid melting tank 25 is heated by an electric heating jacket or an electric heating tape.

[0028] In this embodiment, Figure 1As shown, the rotating part includes a motor reducer 2, a gear 4, a brake reducer 5, a main shaft 7, a main bearing and an upper fixing part 6-2, a main bearing and a lower fixing part 6-1, an upper crossbeam 17, a lower crossbeam 18, a secondary shaft 16, a secondary bearing seat 19, and a main shaft support oil tank 3; the bottom of the main shaft 7 is inserted into a smooth sphere and vertically placed in the main shaft support oil tank 3, and the main shaft support oil tank 3 is filled with high-temperature resistant lubricating oil; a gear 4 is provided on the main shaft, and the motor reducer 2 drives the main shaft 7 to rotate through the gear; a brake reducer 5 is provided above the gear 4 of the main shaft 7; the main shaft 7 passes through the upper and lower main bearings and fixing parts, and the upper and lower main bearings and fixing parts are respectively placed on the top and bottom outer sides of the heating box 9; the upper and lower crossbeams are fixed to the main shaft 7 by bolts; secondary bearing seats 19 are provided at both ends of the upper and lower crossbeams, and the secondary shaft 16 is placed in the upper and lower secondary bearing seats.

[0029] In this embodiment, Figure 1 , Figure 3 As shown, the scheme is further that the filling sample 11 and the counterweight 27 are respectively passed through the secondary shaft 16 on both sides of the beam and fixed on the secondary shaft 16; the upper end of the secondary shaft 16 is provided with a pin hole and the top end is provided with an internal threaded hole; the counterweight end support plate 20 and the filling sample end support plate 21 are respectively arranged above the counterweight 27 and the filling sample 11, and the counterweight end support plate 20 and the filling sample end support plate 21 are fixed to the upper beam 17 by bolts; the filling sample end support plate 21 is provided with a groove 28, the groove 28 is arranged at equal angles on the circumference, and the width of the groove 28 is the same as the width of the pin.

[0030] In this embodiment, Figure 1 As shown, the electric heating device 8 is arranged on the inner side of the bottom of the heating box 9, and the heating method can be an electric heating rod, an electric heating plate, an electric furnace, etc.

[0031] In this embodiment, Figure 1 As shown, the heating box is detachable on five sides except the bottom; the bottom panel of the heating box is provided with an inert gas filling port 22, and the top panel is provided with an exhaust port 24 and an online oxygen concentration monitor interface 23; a high temperature resistant fan 26 is provided in the heating box 9; and a plurality of thermocouples are provided on the inner walls around the heating box 9.

[0032] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes made by technicians in this technical field within the essential scope of the present invention also belong to the protection scope of the present invention.

Claims

1. A liquid metal working medium filling and centrifugal device for enhancing heat transfer process, characterized in that: The device includes a working fluid filling device, a rotating part, a filling sample, a counterweight, an electric heating device, and a heating box; the working fluid filling device is arranged outside the heating box and is movable; the filling sample and the counterweight are placed in the heating box and rotate with the rotating part.

2. The liquid metal working medium filling and centrifugal device for enhancing heat transfer process according to claim 1, characterized in that: The working fluid filling device is provided with a working fluid storage tank and a working fluid melting tank; the working fluid storage tank and the working fluid melting tank are respectively connected to the upper and lower ports reserved for the sample through stainless steel pipes; the upper end side of the working fluid storage tank is provided with an interface to connect the vacuum unit, and the top of the working fluid storage tank is provided with an endoscope probe port and an inert gas filling port; the upper end side of the working fluid melting tank is provided with an interface to connect the vacuum unit, and the top of the working fluid melting tank is provided with an endoscope probe port and an inert gas filling port; the movable joint between the working fluid filling device and the sample connecting pipe is arranged in the heating box to realize the mobility of the working fluid filling device.

3. The liquid metal medium filling and centrifugal device for enhancing heat transfer process according to claim 2, characterized in that: The working fluid melting tank can be used in series to realize the filling of large-scale working mass; the working fluid melting tank is heated by an electric heating jacket or an electric heating tape.

4. The liquid metal working medium filling and centrifugal device for enhancing heat transfer process according to claim 1, characterized in that: The rotating part includes a motor reducer, gears, a brake reducer, a main shaft, a main bearing and fixings, an upper crossbeam, a lower crossbeam, a secondary shaft, a secondary bearing seat, and a main shaft support oil tank; the bottom of the main shaft is inserted into a smooth sphere and vertically placed in the main shaft support oil tank, and the main shaft support oil tank is filled with high-temperature resistant lubricating oil; gears are provided on the main shaft, and the motor reducer drives the main shaft to rotate through the gears; a brake reducer is provided above the main shaft gear; the main shaft passes through the upper and lower main bearings and fixings, and the upper and lower main bearings and fixings are respectively placed on the top and bottom outside of the heating box body; the upper and lower crossbeams are fixed to the main shaft by bolts; secondary bearing seats are provided at both ends of the upper and lower crossbeams, and the secondary shaft is placed in the upper and lower secondary bearing seats.

5. A liquid metal working medium filling and centrifugal device for enhancing heat transfer process according to claim 1 or 4, characterized in that: The filling sample and the counterweight piece are each passed through the secondary shafts on both sides of the crossbeam and fixed on the secondary shaft; a pin hole is provided at the upper end of the secondary shaft and an internal threaded hole is provided at the top end; a counterweight end support plate and a filling sample end support plate are respectively arranged above the counterweight piece and the filling sample, and the counterweight end support plate and the filling sample end support plate are fixed to the upper crossbeam by bolts; a groove is provided on the filling sample end support plate, the groove is arranged at equal angles on the circumference, and the groove width is the same as the pin width.

6. The liquid metal medium filling and centrifugal device for enhancing heat transfer process according to claim 1, characterized in that: The electric heating device is arranged on the inner side of the bottom of the heating box, and the heating method can be an electric heating rod, an electric heating plate, or an electric furnace.

7. The liquid metal working medium filling and centrifugal device for enhancing heat transfer process according to claim 1, characterized in that: The five sides of the heating box except the bottom are all detachable; the bottom panel of the heating box is provided with an inert gas filling port, and the top panel is provided with an exhaust port and an online oxygen concentration monitor interface; a high-temperature resistant fan is arranged in the heating box; and a plurality of thermocouples are arranged on the inner walls around the heating box.

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