A PEEK-printed high-temperature chamber structure with an aerogel insulation layer

Abstract

This utility model relates to the field of 3D printer technology and discloses a PEEK printing high-temperature chamber structure with an aerogel insulation layer. The structure includes a chamber body and a door installed on the chamber body. The chamber body is equipped with a heat dissipation mechanism and a connecting filter mechanism. By activating a centrifugal fan, high-temperature gas from the insulation layer can be extracted. A bubble plate separates the high-temperature gas into multiple bubbles, allowing the bubbles to have large-area contact with cooling water for heat exchange. Simultaneously, the water surface evaporates. Therefore, the air is cooled not only by contact with the cold water but also by the evaporation of water, which carries away a large amount of its own heat. This cooling method effectively lowers the temperature of the gas emitted into the air, preventing it from raising the ambient temperature. Thus, it can extract and dissipate the high-temperature gas gradually accumulating inside the insulation layer, further preventing the high-temperature gas from transferring to the outer shell of the chamber and ensuring that the chamber remains at the ambient temperature.

Description

Technical Field

[0001] This utility model belongs to the field of 3D printer technology, specifically, it relates to a PEEK printing high-temperature chamber structure with an aerogel insulation layer. Background Technology

[0002] With the development of industrial technology, digitalization and intelligentization will become its development trend. Among them, 3D printing technology, as an additive manufacturing method, has received widespread attention. With the gradual development of 3D printing technology, it has begun to be used in more and more industries. The entire process is one-time molding, with high material utilization and eliminating the mold development stage. It is particularly suitable for the customized production of irregular curved parts, saving a lot of labor and costs. There are two main technologies for 3D printing of PEEK materials: fused deposition modeling and selective laser sintering. Fused deposition modeling 3D printing technology involves melting PEEK filaments and extruding them through a nozzle to form the shape. Since the melting point of PEEK material is generally between 350°C and 380°C, the temperature of the heat treatment chamber when printing PEEK material usually needs to be above 250°C. The outer shell of the printer usually needs to be kept at a low temperature for manual operation and to prevent burns.

[0003] However, during long-term operation of the high-temperature chamber, the aerogel insulation layer faces a significant problem of heat accumulation: although the aerogel can block most of the conduction and convection heat transfer, the high temperature inside the chamber will transfer energy to the aerogel layer through thermal radiation. Although the tiny pores inside the aerogel can suppress convection, they cannot completely prevent the slow accumulation of heat flowing to the outer shell of the chamber.

[0004] In view of this, this utility model is hereby proposed. Utility Model Content

[0005] To address the significant heat accumulation problem faced by aerogel insulation layers during long-term operation in high-temperature chambers—a problem stemming from the fact that while aerogel can block most conductive and convective heat transfer, the high temperatures inside the chamber still transfer energy to the aerogel layer through thermal radiation, and although the tiny pores inside the aerogel can suppress convection, they cannot completely prevent the slow accumulation of heat flowing to the outer shell of the chamber—the basic concept of this invention is as follows: A PEEK-printed high-temperature chamber structure with an aerogel insulation layer includes a chamber body and a door installed on the chamber body. A heat dissipation mechanism and a connecting filter mechanism are installed on the chamber body. The heat dissipation mechanism includes a heat insulation layer installed inside the cabin, and a water tank is connected to the outer wall of the cabin. The high-temperature gas accumulated inside the heat insulation layer can be cooled by passing through the water tank. In the process of completing the heat exchange of the heat insulation layer, the temperature impact on the external environment can also be reduced. The connecting filter mechanism includes a top plate connected to the top of the cabin. The top plate has an installation slot that is connected to the heat insulation layer. The installation slot is used for the flow of heat insulation layer with outside air.

[0006] In a preferred embodiment of this utility model, the heat dissipation mechanism includes a heat insulation plate connected to the inner wall of the chamber, the heat insulation plate being filled with an aerogel layer, a gas-gathering hood connected to the outer wall of the chamber, a connecting pipe connected to the top of the gas-gathering hood, a centrifugal fan connected to the end of the connecting pipe away from the gas-gathering hood, the centrifugal fan being installed on the outer wall of the chamber, a gas supply pipe connected to the top output end of the centrifugal fan, and the end of the gas supply pipe away from the centrifugal fan being connected to the bottom of the water tank.

[0007] In a preferred embodiment of the present invention, the connecting filter mechanism includes a connecting frame that is movably snapped into the inner wall of the mounting groove, a magnetic block being connected to the bottom end of the connecting frame, a magnetic suction groove being formed on the outer wall of the top plate, and the outer wall of the magnetic block being magnetically snapped into the inner wall of the magnetic suction groove.

[0008] In a preferred embodiment of this utility model, a connecting cover is connected to the bottom of the inner wall of the water tank, an air bubble plate is connected to the top surface of the connecting cover, a cooling plate is installed on the inner wall of the water tank, and an exhaust pipe is connected to the top of the water tank.

[0009] In a preferred embodiment of the present invention, a connecting groove is provided at the bottom of the outer wall of the cabin, and the connecting groove is connected to the interior of the heat insulation layer.

[0010] In a preferred embodiment of the present invention, the top and bottom ends of the connecting frame are provided with a plurality of connecting holes, which are evenly and equidistantly distributed on the connecting frame.

[0011] In a preferred embodiment of this utility model, the outer wall of the connecting frame is fitted to the inner wall of the mounting groove.

[0012] Compared with the prior art, the present invention has the following advantages: This invention utilizes a centrifugal fan to extract high-temperature gas from the insulation layer, which is then introduced into a water tank. A bubble plate separates the high-temperature gas into multiple bubbles, allowing them to exchange heat with the cooling water over a large area. Simultaneously, the water surface evaporates. Therefore, the air is cooled not only by contact with the cold water but also by the evaporation of the water, which carries away a significant amount of its own heat. This process effectively cools the gas released into the air, preventing it from raising the surrounding environment's temperature. Consequently, it effectively extracts and dissipates the high-temperature gas gradually accumulating inside the insulation layer, further preventing the transfer of high-temperature gas to the outer shell of the cabin and ensuring that the cabin remains at ambient temperature.

[0013] This invention allows the insulation layer to communicate and flow with the external ambient air through the installation slot, while the connecting frame prevents dust from entering the insulation layer and thus affecting the subsequent heat exchange effect.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rear-side separation structure of this utility model; Figure 3 This is a schematic diagram of the heat dissipation mechanism of this utility model; Figure 4 This is a schematic diagram of the connecting filter mechanism of this utility model.

[0016] In the diagram: 1. Cabin; 2. Cabin door; 31. Heat dissipation mechanism; 311. Insulation board; 312. Aerogel layer; 313. Insulation layer; 314. Gas gathering hood; 315. Connecting pipe; 316. Centrifugal fan; 317. Gas supply pipe; 318. Water tank; 319. Connecting hood; 3110. Bubble plate; 3111. Cooling chip; 3112. Exhaust pipe; 32. Connecting filter mechanism; 321. Top plate; 322. Mounting slot; 323. Connecting frame; 324. Magnetic block; 325. Magnetic suction slot. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0018] like Figures 1 to 4As shown, a PEEK-printed high-temperature chamber structure with an aerogel insulation layer includes a chamber body 1 and a door 2 installed on the chamber body 1. A heat dissipation mechanism 31 and a connecting filter mechanism 32 are installed on the chamber body 1. The heat dissipation mechanism 31 includes an insulation layer 313 installed inside the chamber body 1. A water tank 318 is connected to the outer wall of the chamber body 1. The high-temperature gas accumulated inside the insulation layer 313 can be cooled by passing through the water tank 318. In the process of heat exchange of the insulation layer 313, the temperature impact on the external environment can also be reduced. The connecting filter mechanism 32 includes a top plate 321 connected to the top of the chamber body 1. An installation slot 322 is opened on the top plate 321. The installation slot 322 is connected to the insulation layer 313 and is used for the communication and flow between the insulation layer 313 and the external air.

[0019] Furthermore, the heat dissipation mechanism 31 includes a heat insulation plate 311 connected to the inner wall of the chamber 1, an aerogel layer 312 filled in the heat insulation plate 311, a gas-gathering hood 314 connected to the outer wall of the chamber 1, a connecting pipe 315 connected to the top of the gas-gathering hood 314, a centrifugal fan 316 connected to the end of the connecting pipe 315 away from the gas-gathering hood 314, the centrifugal fan 316 installed on the outer wall of the chamber 1, an air supply pipe 317 connected to the top output end of the centrifugal fan 316, and the end of the air supply pipe 317 away from the centrifugal fan 316 connected to the bottom end of the water tank 318.

[0020] Furthermore, a connecting cover 319 is connected to the bottom of the inner wall of the water tank 318, a bubble plate 3110 is connected to the top surface of the connecting cover 319, a cooling plate 3111 is installed on the inner wall of the water tank 318, and an exhaust pipe 3112 is connected to the top of the water tank 318.

[0021] Furthermore, a connecting groove is provided at the bottom of the outer wall of the cabin 1. This connecting groove is connected to the interior of the heat insulation layer 313, so that it can be connected to the gas gathering hood 314, allowing the centrifugal fan 316 to extract the high-temperature gas in the heat insulation layer 313.

[0022] The connecting filter mechanism 32 includes a connecting frame 323 that is movably snapped into the inner wall of the mounting groove 322. A magnetic block 324 is connected to the bottom end of the connecting frame 323. A magnetic groove 325 is opened on the outer wall of the top plate 321. The outer wall of the magnetic block 324 is magnetically snapped into the inner wall of the magnetic groove 325.

[0023] Furthermore, the top and bottom of the connecting frame 323 are provided with a number of connecting holes. These connecting holes are evenly and equidistantly distributed on the connecting frame 323. The connecting holes can be used to connect with the mounting slot 322, thereby enabling the mounting slot 322 to connect with the heat insulation layer 313.

[0024] Furthermore, the outer wall of the connecting frame 323 fits snugly against the inner wall of the mounting groove 322, thereby improving the tight fit between the connecting frame 323 and the mounting groove 322 and thus improving the installation stability of the connecting frame 323.

[0025] The implementation principle of a PEEK-printed high-temperature chamber structure with an aerogel insulation layer in this embodiment is as follows: The insulation plate 311 and the aerogel layer 312 set inside the chamber 1 can effectively block the high temperature inside the chamber 1 from spreading outward, thereby achieving a preliminary effective heat insulation effect. The insulation layer 313 set between the chamber 1 and the insulation plate 311 can form an air circulation layer between the two, thereby further blocking the heat from spreading to the outer wall of the chamber 1, thereby further improving the heat insulation effect. As heat gradually accumulates in the insulation layer 313, the centrifugal fan 316 is activated. Its bottom output end draws air from inside the air-gathering hood 314 through the connecting pipe 315. The air-gathering hood 314 is connected to a connecting hole at the bottom of the chamber 1, which in turn connects directly to the insulation layer 313. Thus, the centrifugal fan 316 extracts the hot air from inside the insulation layer 313. When the air pressure inside the insulation layer 313 decreases, air from the external environment is drawn in through the connecting frame 323 at the top of the chamber 1. This process extracts the hot air from inside the insulation layer 313, which is then transported to the water tank 318 through the air supply pipe 317. The high-temperature gas is then discharged upwards through the connecting hood 319 and separated into smaller particles by several small holes on the bubble plate 3110. Several high-temperature bubbles are used to increase the contact area between the high-temperature gas and the cooling water. At this time, the high-temperature bubbles will exchange heat with the cold water inside the water tank 318. At the same time, when the air passes through the water, it will stir the water surface, causing some of the liquid water to absorb heat and evaporate into water vapor. Through evaporation, a large amount of heat from the high-temperature gas can be absorbed. Therefore, the air is not only cooled by contact with the cold water, but also further cooled by the large amount of heat it carries away by the evaporation of water. Finally, it is discharged into the air through the exhaust pipe 3112 at the top of the water tank 318. This can cool the gas discharged into the air, thereby preventing the surrounding environment from rising due to the discharge. Therefore, the high-temperature gas gradually accumulating inside the insulation layer 313 can be extracted and dissipated, thereby further preventing the high-temperature gas from being transferred to the outer shell of the cabin 1 and ensuring that the cabin 1 is always at the ambient temperature. The cooling element 3111 can cool the cooling water inside the water tank 318, thereby ensuring that the cooling water is always kept at a low temperature, thus ensuring the cooling effect on the high-temperature gas.

[0026] The mounting slot 322 and connecting frame 323 on the top plate 321 allow the insulation layer 313 to communicate and flow with the external ambient air, thereby achieving heat exchange and completing the insulation effect. At the same time, the connecting frame 323 can filter impurities and dust in the air, preventing a large amount of dust and impurities from entering the insulation layer 313 and affecting subsequent heat exchange. When it is necessary to disassemble, replace or clean the connecting frame 323, the pull rod on the outer wall of the connecting frame 323 can be pulled directly to disengage the outer wall of the connecting frame 323 from the inner wall of the mounting slot 322. At the same time, the magnetic block 324 disengages from the magnetic attraction limit between it and the magnetic attraction groove 325 until the connecting frame 323 is completely pulled out of the inner wall of the mounting slot 322 to complete the disassembly. The magnetic block 324 and the magnetic attraction groove 325 can limit and fix the connecting frame 323.

Claims

1. A PEEK-printed high-temperature chamber structure with an aerogel insulation layer, comprising a chamber body (1) and a door (2) disposed on the chamber body (1), characterized in that, The cabin (1) is equipped with a heat dissipation mechanism (31) and a connecting filter mechanism (32). The heat dissipation mechanism (31) includes a heat insulation layer (313) installed inside the cabin (1). A water tank (318) is connected to the outer wall of the cabin (1). The high-temperature gas accumulated inside the heat insulation layer (313) can be cooled by the water tank (318). In the process of completing the heat exchange of the heat insulation layer (313), the temperature impact on the external environment can also be reduced. The connecting filter mechanism (32) includes a top plate (321) connected to the top of the cabin (1). The top plate (321) has an installation slot (322) which is connected to the heat insulation layer (313). The installation slot (322) is used for the communication flow between the heat insulation layer (313) and the outside air.

2. The PEEK-printed high-temperature chamber structure with an aerogel insulation layer according to claim 1, characterized in that, The heat dissipation mechanism (31) includes a heat insulation plate (311) connected to the inner wall of the cabin (1), the heat insulation plate (311) is filled with an aerogel layer (312), the outer wall of the cabin (1) is connected to a gas gathering hood (314), the top of the gas gathering hood (314) is connected to a connecting pipe (315), the end of the connecting pipe (315) away from the gas gathering hood (314) is connected to a centrifugal fan (316), the centrifugal fan (316) is installed on the outer wall of the cabin (1), the top output end of the centrifugal fan (316) is connected to an air supply pipe (317), the end of the air supply pipe (317) away from the centrifugal fan (316) is connected to the bottom end of the water tank (318).

3. The PEEK-printed high-temperature chamber structure with an aerogel insulation layer according to claim 1, characterized in that, The connecting filter mechanism (32) includes a connecting frame (323) that is movably snapped into the inner wall of the mounting slot (322). A magnetic block (324) is connected to the bottom end of the connecting frame (323). A magnetic suction groove (325) is opened on the outer wall of the top plate (321). The outer wall of the magnetic block (324) is magnetically snapped into the inner wall of the magnetic suction groove (325).

4. The PEEK-printed high-temperature chamber structure with an aerogel insulation layer according to claim 1, characterized in that, The bottom of the inner wall of the water tank (318) is connected to a connecting cover (319), the top surface of the connecting cover (319) is connected to a bubble plate (3110), the inner wall of the water tank (318) is equipped with a cooling plate (3111), and the top of the water tank (318) is connected to an exhaust pipe (3112).

5. The PEEK-printed high-temperature chamber structure with an aerogel insulation layer according to claim 2, characterized in that, The bottom of the outer wall of the cabin (1) is provided with a connecting groove, which is connected to the interior of the heat insulation layer (313).

6. The PEEK-printed high-temperature chamber structure with an aerogel insulation layer according to claim 3, characterized in that, The top and bottom of the connecting frame (323) are provided with a number of connecting holes, which are evenly and equidistantly distributed on the connecting frame (323).

7. The PEEK-printed high-temperature chamber structure with an aerogel insulation layer according to claim 3, characterized in that, The outer wall of the connecting frame (323) fits snugly against the inner wall of the mounting groove (322).

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