Modularized heat dissipation lining based on 3D printing in metal atomization equipment cavity

Abstract

The invention discloses a modularized heat dissipation lining based on 3D printing in a metal atomization equipment cavity, which comprises a plurality of heat dissipation modules based on 3D printing, and every two adjacent heat dissipation modules are spliced and are detachably connected with the inner surface of the metal atomization equipment cavity. The shape of the heat dissipation module is matched with the shape of the corresponding position of the inner surface of the metal atomization equipment cavity, a conformal cooling flow channel is integrated in the heat dissipation module, and the shape and the distribution position of the conformal cooling flow channel are determined according to the thermal load distribution condition of the position, corresponding to the corresponding heat dissipation module, in the metal atomization equipment cavity. And the liquid outlet of the conformal cooling flow channel in each heat dissipation module is connected with the liquid inlet of the conformal cooling flow channel in the adjacent heat dissipation module. The heat dissipation efficiency of the cavity of the metal atomization equipment can be improved, the risk of cooling liquid leakage is greatly reduced, the time and difficulty for replacing the modular heat dissipation lining can be reduced, and the maintenance cost can be reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of heat dissipation of metal atomization equipment, and in particular relates to a modular heat dissipation lining based on 3D printing in the cavity of a metal atomization equipment. Background Art

[0002] Metal atomization equipment is a manufacturing process used to turn metal alloys into fine powders. This process involves melting the metal and breaking it down into droplets using gas or water atomization. These droplets then rapidly solidify into powder particles within a customizable size range. Common metal atomization equipment includes vacuum induction melting gas atomization, water atomization, ultrasonic vibration atomization, and plasma rotating electrode atomization.

[0003] The furnace body of traditional metal atomization equipment VIGA, namely vacuum induction melting gas atomization equipment, mainly includes a melting chamber, an atomization chamber and a powder collecting chamber; the melting chamber is used to melt the metal raw materials in a vacuum or inert gas protection environment, and the melting chamber is equipped with key components such as an induction coil and a crucible. The induction coil generates a high-frequency magnetic field to stimulate the metal raw materials in the crucible to generate eddy currents, thereby realizing rapid melting of the metal, and the crucible is used to hold the metal raw materials; the atomization chamber is used to atomize the smelted metal liquid, break it into a large number of fine droplets, and then quickly cool and solidify it into metal powder. Key components such as atomizing nozzles are installed inside the atomization chamber. Common atomizing nozzles include tightly coupled restricted annular hole nozzles, etc., which use special structural design to fully mix the high-pressure inert gas and the metal liquid in the nozzle and produce a strong shearing effect, thereby realizing the crushing and atomization of the metal liquid; the powder collecting chamber is used to collect the powder through For the metal powder formed after atomization, a powder collection device such as a cyclone separation system is usually installed inside the powder collecting chamber, which separates the metal powder from the gas and collects it through centrifugal force, gravity, etc.; the smelting chamber, atomization chamber and powder collecting chamber usually need to be equipped with a water cooling system; specifically, for the smelting chamber, during the smelting process, the metal raw materials are heated to a high temperature and melted, generating a large amount of heat. The water cooling system equipped in the smelting chamber can take away the heat in time to prevent the smelting chamber from overheating, maintain a suitable temperature, and ensure the smelting efficiency and quality; for the atomization chamber, during atomization, the high-temperature metal liquid contacts the high-pressure gas and releases a large amount of heat. The water cooling system equipped in the atomization chamber can prevent the inner wall of the atomization chamber from overheating, avoid affecting the gas dynamic parameters, maintain the atomization effect, and ensure the quality of the metal powder; for the powder collecting chamber, the water cooling system equipped in the powder collecting chamber can reduce the temperature in the chamber, prevent the powder from oxidation and agglomeration, ensure its purity, particle size and shape, and meet the use requirements.

[0004] The heat dissipation of the cavity of the traditional metal atomization equipment VIGA mainly relies on a double-layer water-cooling interlayer. Specifically, cooling water is set in the cavity between the inner and outer walls of the metal atomization equipment. However, the design of the double-layer water-cooling interlayer has the following problems in actual application:

[0005] 1) Low heat dissipation efficiency: Since the cooling channel is set in the cavity between the inner wall and the outer wall of the metal atomization equipment, and the inner wall of the metal atomization equipment has a certain thickness to ensure strength and prevent water leakage, the heat dissipation efficiency of the cavity of the metal atomization equipment is low under the barrier effect of the inner wall of the metal atomization equipment. The heat emitted by the high-temperature metal liquid and the atomization and cooling process is not easy to be taken away in time, which can easily lead to thermal deformation of the cavity of the metal atomization equipment and affect the stability of the equipment. In addition, since traditional manufacturing processes are difficult to realize the manufacture of complex conformal cooling channels, this will affect the heat load distribution and heat dissipation efficiency in the cavity of the metal atomization equipment.

[0006] 2) High risk of water leakage: Due to the corrosion effect of cooling water in the cavity on the welds on the cavity, there is a risk of cooling water leakage;

[0007] 3) Difficulty in maintenance: Since the cavity formed by the inner and outer walls of the metal atomization equipment is an integrated structure, even if only a part is damaged, the entire part needs to be replaced. Therefore, the maintenance cost is high and the downtime is long, resulting in difficulty in maintenance. Summary of the Invention

[0008] In view of the above-mentioned defects of the prior art, the present invention provides a modular heat dissipation lining based on 3D printing in the cavity of a metal atomization device, which can improve the heat dissipation efficiency of the cavity of the metal atomization device, greatly reduce the risk of coolant leakage, and reduce the time and difficulty of replacing the modular heat dissipation lining, and reduce maintenance costs.

[0009] The technical solution adopted by the present invention to solve its technical problem is:

[0010] A modular heat dissipation lining based on 3D printing in the cavity of a metal atomization device, comprising a plurality of heat dissipation modules based on 3D printing, wherein every two adjacent heat dissipation modules are spliced ​​and detachably connected to the inner surface of the cavity of the metal atomization device, the shape of the heat dissipation module is adapted to the shape of the corresponding position on the inner surface of the cavity of the metal atomization device, the heat dissipation module is integrated with a conformal cooling channel, the shape and distribution position of the conformal cooling channel are determined according to the heat load distribution at the position corresponding to the corresponding heat dissipation module in the cavity of the metal atomization device, the liquid outlet of the conformal cooling channel in each heat dissipation module is connected to the liquid inlet of the conformal cooling channel in the adjacent heat dissipation module, in the coolant flow direction of the modular heat dissipation lining, the liquid inlet of the conformal cooling channel in the heat dissipation module at the upstream head end is the total liquid inlet, and the liquid outlet of the conformal cooling channel in the heat dissipation module at the downstream end is the total liquid outlet, and the total liquid inlet and the total liquid outlet are both connected to an external coolant circulation system.

[0011] Furthermore, every two adjacent heat dissipation modules are spliced ​​with each other through mortise and tenon interfaces and are detachably connected by bolts at the mortise and tenon interfaces, and are detachably connected to the inner surface of the metal atomization device cavity through bolts at the mortise and tenon interfaces.

[0012] Furthermore, the liquid outlet of the conformal cooling channel in each heat dissipation module is connected to the liquid inlet of the conformal cooling channel in the adjacent heat dissipation module through a flange. The connection port of the flange is called a flange interface and is arranged in the cavity of the corresponding mortise and tenon interface.

[0013] Furthermore, the furnace body of the metal atomization equipment includes a smelting chamber, an atomizing chamber and a powder collecting chamber, and the modular heat dissipation lining includes a first modular heat dissipation lining in the smelting chamber, a second modular heat dissipation lining in the atomizing chamber and a third modular heat dissipation lining in the powder collecting chamber. The first modular heat dissipation lining is formed by splicing several first heat dissipation modules manufactured by 3D printing technology, the second modular heat dissipation lining is formed by splicing several second heat dissipation modules manufactured by 3D printing technology, and the third modular heat dissipation lining is formed by splicing several third heat dissipation modules manufactured by 3D printing technology.

[0014] Furthermore, the first modular heat dissipation lining includes a first total liquid inlet and a first total liquid outlet, the second modular heat dissipation lining includes a second total liquid inlet and a second total liquid outlet, and the third modular heat dissipation lining includes a third total liquid inlet and a third total liquid outlet. The first total liquid inlet, the first total liquid outlet, the second total liquid inlet, the second total liquid outlet, the third total liquid inlet and the third total liquid outlet are all connected to an external coolant circulation system.

[0015] Furthermore, the materials of the first heat dissipation module, the second heat dissipation module and the third heat dissipation module are selected according to the metal powder produced by the metal atomization equipment and the heat dissipation requirements of corresponding parts of the metal atomization equipment.

[0016] Furthermore, the heat dissipation module is also integrated with a plurality of array-arranged temperature sensors, and the plurality of temperature sensors are used to monitor the temperature at the position corresponding to the corresponding heat dissipation module in the metal atomization equipment cavity, and the coolant flow rate of the total liquid inlet is adjusted according to the monitored temperature in the metal atomization equipment cavity.

[0017] Furthermore, the joints between every two adjacent heat dissipation modules are sealed with graphite-based high-temperature sealant.

[0018] Furthermore, the size of the heat dissipation module is determined by the spatial size of the metal atomization equipment cavity and the maximum molding range of the 3D printer.

[0019] Furthermore, the conformal cooling channel is wavy or spiral.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The modular heat dissipation lining based on 3D printing in the metal atomization equipment cavity of the present invention, since the heat dissipation modules of the modular heat dissipation lining are located on the inner surface of the metal atomization equipment cavity, and the conformal cooling channel is integrated in the heat dissipation module, there is no barrier effect of the inner wall of the metal atomization equipment, which can improve the heat dissipation efficiency of the metal atomization equipment cavity, and the heat in the metal atomization equipment cavity is more easily carried away in time by the coolant flowing in the conformal cooling channel, which is not easy to cause thermal deformation of the metal atomization equipment cavity, and can improve the stability of the metal atomization equipment; and since the heat dissipation module is manufactured by 3D printing technology, and the conformal cooling channel is integrated in the heat dissipation module, the shape and distribution position of the conformal cooling channel are determined according to the heat load distribution at the position corresponding to the corresponding heat dissipation module in the metal atomization equipment cavity, so that the integrated manufacturing of complex conformal cooling channels can be realized through 3D printing technology, which can optimize The heat load distribution in the cavity of the metal atomization equipment can thereby improve the heat dissipation efficiency of the cavity of the metal atomization equipment; and since the conformal cooling flow channel is integrated in the heat dissipation module, there is no risk of coolant leakage in the conformal cooling flow channel, which can solve the problem in the background technology that the welds on the cavity formed by the inner wall and the outer wall of the metal atomization equipment are corroded by the cooling water and may leak cooling water; in addition, since every two adjacent heat dissipation modules in this modular heat dissipation lining are spliced ​​and detachably connected to the inner surface of the metal atomization equipment cavity, after a heat dissipation module is damaged, there is no need to replace the entire modular heat dissipation lining, only the damaged heat dissipation module needs to be replaced, thereby effectively reducing the time and difficulty of replacing the modular heat dissipation lining, and reducing maintenance costs; in addition, the modular heat dissipation lining based on 3D printing can adapt to the customization requirements of the metal atomization equipment cavity, and can reduce the production cost and difficulty of the modular heat dissipation lining. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of one of the heat dissipation modules of the modular heat dissipation liner based on 3D printing in the present invention;

[0023] Figure 2 Schematic diagram of the three-dimensional structure of the conformal cooling channel in the heat dissipation module.

[0024] Explanation of the reference numerals in the figure: 1. heat dissipation module, 101. bolt hole, 102. mortise and tenon joint, 103. conformal cooling channel, 10301. liquid inlet, 10302. liquid outlet, 10303. flange joint, 2. temperature sensor. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention and are not intended to limit the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0028] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0029] A modular heat dissipation lining based on 3D printing in the cavity of a metal atomization device, comprising a plurality of heat dissipation modules 1 based on 3D printing, see Figure 1 , every two adjacent heat dissipation modules 1 are spliced ​​and detachably connected to the inner surface of the metal atomization device cavity, the shape of the heat dissipation module 1 is adapted to the shape of the corresponding position of the inner surface of the metal atomization device cavity, and the heat dissipation module 1 is integrated with a conformal cooling channel 103, see Figure 2 The shape and distribution position of the conformal cooling channel 103 are determined according to the heat load distribution at the position corresponding to the corresponding heat dissipation module 1 in the cavity of the metal atomization equipment. The liquid outlet 10302 of the conformal cooling channel 103 in each heat dissipation module 1 is connected to the liquid inlet 10301 of the conformal cooling channel 103 in the adjacent heat dissipation module 1. In the coolant flow direction of the modular heat dissipation liner, the liquid inlet 10301 of the conformal cooling channel 103 in the heat dissipation module 1 at the upstream head end is the total liquid inlet, and the liquid outlet 10302 of the conformal cooling channel 103 in the heat dissipation module 1 at the downstream end is the total liquid outlet. The total liquid inlet and the total liquid outlet are both connected to the external coolant circulation system.

[0030] Since each heat dissipation module 1 of the modular heat dissipation lining is located on the inner surface of the metal atomization equipment cavity, and the conformal cooling channel 103 is integrated in the heat dissipation module 1, there is no barrier effect of the inner wall of the metal atomization equipment, which can improve the heat dissipation efficiency of the metal atomization equipment cavity, and the heat in the metal atomization equipment cavity is more easily carried away in time by the coolant flowing in the conformal cooling channel 103, which is not easy to cause thermal deformation of the metal atomization equipment cavity, and can improve the stability of the metal atomization equipment; and since the heat dissipation module 1 is manufactured by 3D printing technology, and the conformal cooling channel 103 is integrated in the heat dissipation module 1, the shape and distribution position of the conformal cooling channel 103 are determined according to the heat load distribution at the position corresponding to the corresponding heat dissipation module 1 in the metal atomization equipment cavity, so that the integrated manufacturing of complex conformal cooling channel 103 can be realized through 3D printing technology, which can optimize the metal atomization equipment cavity The heat load distribution can be improved, thereby improving the heat dissipation efficiency of the metal atomization equipment cavity; and since the conformal cooling channel 103 is integrated in the heat dissipation module 1, the conformal cooling channel 103 does not have the risk of cooling liquid leakage, which can solve the problem of the weld on the cavity formed by the inner wall and the outer wall of the traditional metal atomization equipment in the background technology being corroded by cooling water and possibly leaking cooling water; in addition, since every two adjacent heat dissipation modules 1 in the modular heat dissipation lining are spliced ​​and detachably connected to the inner surface of the metal atomization equipment cavity, after a heat dissipation module 1 is damaged, there is no need to replace the modular heat dissipation lining as a whole, only the damaged heat dissipation module 1 needs to be replaced, thereby effectively reducing the time and difficulty of replacing the modular heat dissipation lining, and reducing maintenance costs; in addition, the modular heat dissipation lining based on 3D printing can adapt to the customization requirements of the metal atomization equipment cavity, and can reduce the production cost and difficulty of the modular heat dissipation lining.

[0031] The cross-sectional area of ​​the liquid inlet 10301 of each heat dissipation module 1 is larger than the cross-sectional area of ​​the liquid outlet 10302 , which can reduce the pressure loss at the liquid inlet 10301 and increase the flow rate at the liquid outlet 10302 .

[0032] The coolant in the conformal cooling channel 103 is preferably cooling water.

[0033] In one embodiment,

[0034] Each two adjacent heat dissipation modules 1 are spliced ​​together through a mortise and tenon joint 102 and are detachably connected by bolts at the mortise and tenon joint 102. They are also detachably connected to the inner surface of the metal atomization device cavity by bolts at the mortise and tenon joint 102. Each heat dissipation module 1 has a plurality of bolt holes 101 distributed at the mortise and tenon joint 102, and bolts are disposed in the bolt holes 101.

[0035] The liquid outlet 10302 of the conformal cooling channel 103 within each heat dissipation module 1 is connected to the liquid inlet 10301 of the conformal cooling channel 103 within the adjacent heat dissipation module 1 via a flange. The flange connection is called a flange interface 10303 and is located in the cavity of the corresponding mortise and tenon interface 102. This ensures both ease of installation and a tight seal between adjacent heat dissipation modules 1. The main liquid inlet and outlet of the modular heat dissipation liner are connected to the external coolant circulation system via flanges.

[0036] In one embodiment,

[0037] The furnace body of the metal atomization equipment includes a smelting chamber, an atomizing chamber and a powder collecting chamber. The modular heat dissipation lining includes a first modular heat dissipation lining in the smelting chamber, a second modular heat dissipation lining in the atomizing chamber and a third modular heat dissipation lining in the powder collecting chamber. The first modular heat dissipation lining is formed by splicing several first heat dissipation modules manufactured by 3D printing technology, the second modular heat dissipation lining is formed by splicing several second heat dissipation modules manufactured by 3D printing technology, and the third modular heat dissipation lining is formed by splicing several third heat dissipation modules manufactured by 3D printing technology.

[0038] Among them, the first modular heat dissipation lining includes a first total liquid inlet and a first total liquid outlet, the second modular heat dissipation lining includes a second total liquid inlet and a second total liquid outlet, and the third modular heat dissipation lining includes a third total liquid inlet and a third total liquid outlet. The first total liquid inlet, the first total liquid outlet, the second total liquid inlet, the second total liquid outlet, the third total liquid inlet and the third total liquid outlet are all connected to the external coolant circulation system.

[0039] The materials of the first, second, and third heat dissipation modules are selected based on the metal powder produced by the metal atomization equipment and the heat dissipation requirements of the corresponding parts of the metal atomization equipment. Metal or non-metal materials that balance thermal conductivity and high-temperature resistance can be selected, and stainless steel can be selected as the metal. Preferably, the first, second, and third heat dissipation modules are made of different materials.

[0040] In one embodiment, the heat dissipation module 1 also integrates a plurality of array-arranged temperature sensors 2, and the plurality of temperature sensors 2 are used together to monitor the temperature at the position corresponding to the corresponding heat dissipation module 1 in the cavity of the metal atomization equipment, and the coolant flow rate at the total liquid inlet is adjusted according to the monitored temperature in the cavity of the metal atomization equipment.

[0041] In one embodiment, the joints between every two adjacent heat dissipation modules 1 are sealed with graphite-based high-temperature sealant, which ensures the sealing of the connection between the two adjacent heat dissipation modules 1 and allows for thermal expansion compensation.

[0042] In one embodiment, the size of the heat dissipation module 1 is determined by the spatial size of the metal atomization device cavity and the maximum molding range of the 3D printer.

[0043] In one embodiment, the conformal cooling channel 103 is wavy or spiral.

[0044] In one embodiment, one side of the heat dissipation module 1 close to the inner surface of the metal atomization device cavity is smooth, which facilitates maintenance and cleaning.

[0045] In one embodiment, the inner surface of the conformal cooling channel 103 in the heat dissipation module 1 is subjected to anti-corrosion treatment, such as micro-arc oxidation treatment, to form a ceramic layer on the inner surface of the conformal cooling channel 103, and the ceramic layer can prevent the cooling water from corroding the conformal cooling channel 103.

[0046] The modular heat dissipation lining of the present invention can break through the limitations of the printing size of 3D printers. At the same time, it adopts the design of topologically optimized conformal cooling channel 103, which significantly improves the heat dissipation efficiency and equipment reliability of the metal atomization equipment cavity, and is suitable for the preparation scenarios of high-end metal powders such as titanium alloys and high-temperature alloys. Specific embodiments

[0048] Preparation of heat dissipation modules 1: Use LPBF technology to print multiple heat dissipation modules 1 made of stainless steel and polish them separately;

[0049] Assembly process: Each heat dissipation module 1 is embedded in the guide groove on the inner surface of the metal atomization equipment cavity in the order of numbering, and each two adjacent heat dissipation modules 1 are positioned with mortise and tenon joints and then locked with bolts. Graphite-based high-temperature sealant is applied to the joints between each two adjacent heat dissipation modules 1. The graphite-based high-temperature sealant has a temperature tolerance of greater than or equal to 1600°C. Each heat dissipation module 1 is spliced ​​together to form a modular heat dissipation lining.

[0050] Connection of the external coolant circulation system: The total liquid inlet and total liquid outlet of the modular heat dissipation liner are connected to the external coolant circulation system through flanges, wherein the pressure of the cooling water in the external coolant circulation system is maintained at 0.5-1.2MPa.

[0051] Compared with the traditional external water-cooling jacket in the background technology, the modular heat dissipation lining in the present invention can reduce the temperature of the hot spot area of ​​the metal atomization equipment cavity by 80-120°C, and can reduce the oxygen content of the produced metal powder by 15%. Moreover, the replacement cost of the modular heat dissipation lining is reduced by 70%, and the maintenance time is shortened to within 4 hours. In addition, the modular heat dissipation lining suitable for the size of the metal atomization equipment cavity can be 3D printed.

[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A modular heat dissipation lining based on 3D printing in the cavity of a metal atomization device, characterized by: The invention comprises a plurality of heat dissipation modules (1) based on 3D printing, wherein each two adjacent heat dissipation modules (1) are spliced ​​and detachably connected to the inner surface of the metal atomization device cavity, the shape of the heat dissipation module (1) is adapted to the shape of the corresponding position of the inner surface of the metal atomization device cavity, and the heat dissipation module (1) is integrated with a conformal cooling channel (103), the shape and distribution position of the conformal cooling channel (103) are determined according to the heat load distribution at the position corresponding to the corresponding heat dissipation module (1) in the metal atomization device cavity, and each heat dissipation module (1) is connected to the heat dissipation module (1) and the heat dissipation module (1) is connected to the heat dissipation module (1). ) is connected to the liquid inlet (10301) of the conformal cooling channel (103) in the adjacent heat dissipation module (1); in the coolant flow direction of the modular heat dissipation liner, the liquid inlet (10301) of the conformal cooling channel (103) in the heat dissipation module (1) at the upstream head end is the total liquid inlet, and the liquid outlet (10302) of the conformal cooling channel (103) in the heat dissipation module (1) at the downstream end is the total liquid outlet, and the total liquid inlet and the total liquid outlet are both connected to the external coolant circulation system.

2. The modular heat dissipation lining based on 3D printing in the cavity of a metal atomization device according to claim 1, characterized in that: Every two adjacent heat dissipation modules (1) are spliced ​​together via mortise and tenon joints (102) and are detachably connected via bolts at the mortise and tenon joints (102), and are detachably connected to the inner surface of the metal atomization device cavity via bolts at the mortise and tenon joints (102).

3. The modular heat dissipation lining based on 3D printing in the cavity of a metal atomization device according to claim 2, characterized in that: The liquid outlet (10302) of the conformal cooling channel (103) in each heat dissipation module (1) is connected to the liquid inlet (10301) of the conformal cooling channel (103) in the adjacent heat dissipation module (1) via a flange, and the connection port of the flange is called a flange interface (10303) and is arranged in the cavity of the corresponding mortise and tenon interface (102).

4. The modular heat dissipation lining based on 3D printing in the cavity of a metal atomization device according to claim 1, characterized in that: The furnace body of the metal atomization equipment includes a smelting chamber, an atomizing chamber and a powder collecting chamber. The modular heat dissipation lining includes a first modular heat dissipation lining in the smelting chamber, a second modular heat dissipation lining in the atomizing chamber and a third modular heat dissipation lining in the powder collecting chamber. The first modular heat dissipation lining is formed by splicing several first heat dissipation modules manufactured by 3D printing technology, the second modular heat dissipation lining is formed by splicing several second heat dissipation modules manufactured by 3D printing technology, and the third modular heat dissipation lining is formed by splicing several third heat dissipation modules manufactured by 3D printing technology.

5. The modular heat dissipation lining based on 3D printing in the cavity of a metal atomization device according to claim 4, characterized in that: The first modular heat dissipation lining includes a first total liquid inlet and a first total liquid outlet, the second modular heat dissipation lining includes a second total liquid inlet and a second total liquid outlet, and the third modular heat dissipation lining includes a third total liquid inlet and a third total liquid outlet. The first total liquid inlet, the first total liquid outlet, the second total liquid inlet, the second total liquid outlet, the third total liquid inlet and the third total liquid outlet are all connected to an external coolant circulation system.

6. The modular heat dissipation lining based on 3D printing in the cavity of a metal atomization device according to claim 4, characterized in that: The materials of the first heat dissipation module, the second heat dissipation module and the third heat dissipation module are selected according to the metal powder produced by the metal atomization equipment and the heat dissipation requirements of corresponding parts of the metal atomization equipment.

7. The modular heat dissipation lining based on 3D printing in the cavity of a metal atomization device according to claim 1, characterized in that: The heat dissipation module (1) is further integrated with a plurality of array-arranged temperature sensors (2), and the plurality of temperature sensors (2) are used in conjunction with each other to monitor the temperature at positions corresponding to the corresponding heat dissipation modules (1) in the metal atomization device cavity, and the coolant flow rate at the total liquid inlet is adjusted according to the monitored temperature in the metal atomization device cavity.

8. The modular heat dissipation lining based on 3D printing in the cavity of a metal atomization device according to claim 1, characterized in that: The joints between any two adjacent heat dissipation modules (1) are sealed using graphite-based high-temperature sealant.

9. The modular heat dissipation lining based on 3D printing in the cavity of a metal atomization device according to claim 1, characterized in that: The size of the heat dissipation module (1) is determined by the spatial size of the metal atomization equipment cavity and the maximum molding range of the 3D printer.

10. The modular heat dissipation lining based on 3D printing in the cavity of a metal atomization device according to claim 1, characterized in that: The conformal cooling channel (103) is wavy or spiral.

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