Internal efficient exhaust duct system of filling and sealing machine

By using the U-shaped exhaust duct, nano-aerogel insulation layer and porous diffusion plate in the potting machine, the problem of excessive temperature of the exhaust duct is solved, and efficient exhaust is achieved, ensuring stable operation of the equipment and safe workshop environment.

CN120288697APending Publication Date: 2025-07-11YUNNAN ACAD OF PHARM SCI BIOMEDICINE CO LTD
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Patent Information

Application Number
CN202510527903.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2025-07-11

AI Technical Summary

Technical Problem

The existing potting machine exhaust duct design leads to excessive temperature, affecting the equipment operation and workshop environment, and posing safety hazards.

Method used

U-shaped exhaust duct, exhaust duct insulation layer and porous diffusion plate are used, combined with nano-aerogel material, and designed as an L-shaped diffusion pipeline to reduce the exhaust temperature through diversion and insulation and improve exhaust efficiency.

Benefits of technology

Significantly reduce the temperature of the exhaust duct, reduce the accumulation of heat inside the equipment, extend the service life of the equipment, maintain a clean environment and the safety of operators, improve exhaust efficiency and smooth air circulation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of medicine production, and discloses a filling and sealing machine internal efficient exhaust duct system which comprises heat dissipation equipment, a fan is fixedly installed at the upper end of the inner wall of the heat dissipation equipment, an efficient filter screen is fixedly installed at an air inlet of the fan, and an air inlet pipe is fixedly installed on the right side wall face of the efficient filter screen. The U-shaped exhaust pipeline, the exhaust pipeline heat insulation layer and the porous diffusion plate are arranged, the exhaust pipeline is changed into a U shape and extends to the position below the equipment bottom plate, and the design of the exhaust pipeline heat insulation layer and the porous diffusion plate is combined, so that the temperature of the exhaust pipeline is remarkably reduced, and the situation that normal operation is affected due to the fact that the temperature in the equipment is too high is avoided; heat accumulation in the equipment is reduced, stable operation of the equipment is kept, the service life of the equipment is prolonged, fluctuation of workshop environment temperature is reduced through effective exhaust system improvement measures, and maintenance of a clean environment for medicine production and safety of operators is facilitated.
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Description

Technical Field

[0001] The present invention relates to the technical field of pharmaceutical production, and particularly to an efficient exhaust duct system inside a filling and sealing machine. Background Art

[0002] At present, filling and sealing machines are widely used in the process of pharmaceutical production to fill liquid medicines into ampoules or other containers. During the filling process, in order to maintain the cleanliness and temperature control of the workshop environment, exhaust ducts are usually equipped inside the filling and sealing machine to discharge the hot air generated inside the equipment.

[0003] However, the existing exhaust duct design has deficiencies, resulting in too high temperature inside the exhaust duct, affecting the normal operation of the equipment and the temperature control of the workshop environment. The high-temperature exhaust duct will exacerbate the heat accumulation inside the equipment, not only affecting the service life of the equipment, but also possibly having an adverse impact on the safety of workshop operators and the production environment.

[0004] Therefore, we propose an efficient exhaust duct system inside a filling and sealing machine. Summary of the Invention

[0005] The present invention mainly solves the technical problems existing in the above-mentioned prior art and provides an efficient exhaust duct system inside a filling and sealing machine.

[0006] To achieve the above object, the present invention adopts the following technical solution. The efficient exhaust duct system inside a filling and sealing machine includes a heat dissipation device. At the upper end of the inner wall of the heat dissipation device, a fan is fixedly installed. At the air inlet of the fan, an efficient filter screen is fixedly installed. On the right side wall of the efficient filter screen, an air inlet pipe is fixedly installed, and the end of the air inlet pipe far from the efficient filter screen is fixedly connected to the air outlet of the filling and sealing machine. At the air outlet at the bottom of the fan, an L-shaped diversion pipe is fixedly installed. On the outer wall of the L-shaped diversion pipe, a diversion pipe heat insulation layer is fixedly installed. At the bottom of the L-shaped diversion pipe, a U-shaped exhaust pipe is fixedly installed. On the outer wall of the U-shaped exhaust pipe, an exhaust pipe heat insulation layer is fixedly installed. At the bottom of the U-shaped exhaust pipe, a porous diffusion plate is fixedly installed, and the upper end of the outer wall of the porous diffusion plate is fixedly connected to the lower end of the inner wall of the heat dissipation device.

[0007] Preferably, the material of the diversion pipe heat insulation layer is nano-aerogel.

[0008] Preferably, the material of the exhaust pipe heat insulation layer is nano-aerogel.

[0009] Preferably, the thermal conductivity of the diversion pipe heat insulation layer ≤.W / (m·K).

[0010] Preferably, the thermal conductivity of the exhaust pipe heat insulation layer ≤.W / (m·K).

[0011] Preferably, the thickness of the heat insulation layer of the shunt pipeline is -mm.

[0012] Preferably, the thickness of the heat insulation layer of the exhaust pipeline is -mm.

[0013] Preferably, the pore diameter of the porous diffusion plate is -mm.

[0014] Preferably, the porosity of the porous diffusion plate is %-%

[0015] The present invention provides an efficient exhaust pipeline system inside a potting machine, which has the following beneficial effects:

[0016] 1. In the efficient exhaust pipeline system inside the potting machine, by setting a U-shaped exhaust pipeline, a heat insulation layer for the exhaust pipeline and a porous diffusion plate, by changing the exhaust pipeline to a U-shaped direction and extending it under the equipment bottom plate, combined with the design of the heat insulation layer for the exhaust pipeline and the porous diffusion plate, the temperature of the exhaust pipeline is significantly reduced, avoiding the normal operation of the equipment being affected due to excessive temperature inside the equipment. After the temperature of the exhaust pipeline is reduced, the heat accumulation inside the equipment is reduced, which helps to maintain the stable operation of the equipment and extend the service life of the equipment. Through effective improvement measures for the exhaust system, the temperature fluctuation in the workshop environment is reduced, which is beneficial to maintaining the clean environment for drug production and the safety of operators.

[0017] 2. In the efficient exhaust pipeline system inside the potting machine, by setting an L-shaped shunt pipeline, the exhaust air flow is shunted, reducing the exhaust pressure of a single pipeline and improving the exhaust efficiency.

[0018] 3. In the efficient exhaust pipeline system inside the potting machine, by setting a heat insulation layer for the shunt pipeline, the heat insulation layer for the shunt pipeline further reduces the heat leakage and maintains the stability of the temperature inside the L-shaped shunt pipeline.

[0019] 4. In the efficient exhaust pipeline system inside the potting machine, by setting a heat insulation layer for the shunt pipeline and a heat insulation layer for the exhaust pipeline, the materials of the heat insulation layer for the shunt pipeline and the heat insulation layer for the exhaust pipeline are both nano-aerogel. Compared with ordinary glass fiber heat insulation materials, nano-aerogel has a lower thermal conductivity and better heat insulation performance, can effectively reduce heat transfer, and improve the heat insulation effect of the exhaust pipeline system. In addition, nano-aerogel also has excellent corrosion resistance and stability, can adapt to the complex chemical environment and temperature changes during the drug production process, and ensure the long-term stable operation of the exhaust pipeline system.

[0020] 5. In the efficient exhaust pipeline system inside the potting machine, by setting a porous diffusion plate, the pore diameter and porosity of the porous diffusion plate are reasonably designed, which can evenly distribute the exhaust air flow, reduce the impact of the air flow on the surrounding environment, and at the same time improve the exhaust efficiency, ensure the smooth air circulation in the workshop, and further maintain the cleanliness of drug production and the comfort of operators. Description of the Drawings

[0021] Figure 1 This is a schematic structural diagram of the present invention.

[0022] Legend: 10, heat dissipation device; 11, fan; 12, high-efficiency filter; 13, L-shaped diversion pipe; 14, diversion pipe heat insulation layer; 15, U-shaped exhaust pipe; 16, exhaust pipe heat insulation layer; 17, porous diffusion plate. Specific embodiments

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained based on the provided drawings.

[0024] The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have technical substance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0025] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "inner", "outer", "side", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0027] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1: An efficient exhaust duct system inside a potting machine, as Figure 1As shown in the figure, it includes a heat dissipation device 10. At the upper end of the inner wall of the heat dissipation device 10, a fan 11 is fixedly installed. At the air inlet of the fan 11, a high-efficiency filter screen 12 is fixedly installed. On the right side wall of the high-efficiency filter screen 12, an air inlet pipe is fixedly installed, and the end of the air inlet pipe away from the high-efficiency filter screen 12 is fixedly connected to the air outlet of the potting machine. At the bottom of the fan 11 at the air outlet, an L-shaped shunt pipe 13 is fixedly installed. On the outer wall of the L-shaped shunt pipe 13, a shunt pipe heat insulation layer 14 is fixedly installed. At the bottom of the L-shaped shunt pipe 13, a U-shaped exhaust pipe 15 is fixedly installed. On the outer wall of the U-shaped exhaust pipe 15, an exhaust pipe heat insulation layer 16 is fixedly installed. At the bottom of the U-shaped exhaust pipe 15, a porous diffuser plate 17 is fixedly installed, and the upper end of the outer wall of the porous diffuser plate 17 is fixedly connected to the lower end of the inner wall of the heat dissipation device 10. The material of the shunt pipe heat insulation layer 14 is nano-aerogel, and the material of the exhaust pipe heat insulation layer 16 is nano-aerogel. The thermal conductivity of the shunt pipe heat insulation layer 14 is 0.02 W / (m·K), and the thermal conductivity of the exhaust pipe heat insulation layer 16 is 0.01 W / (m·K). The thickness of the shunt pipe heat insulation layer 14 is 20 mm, and the thickness of the exhaust pipe heat insulation layer 16 is 10 mm. The pore diameter of the porous diffuser plate 17 is 10 mm, and the porosity of the porous diffuser plate 17 is 30%. By setting the U-shaped exhaust pipe 15, the exhaust pipe heat insulation layer 16 and the porous diffuser plate 17, by changing the exhaust pipe to a U-shaped direction and extending it below the equipment bottom plate, combined with the design of the exhaust pipe heat insulation layer 16 and the porous diffuser plate 17, the temperature of the exhaust pipe is significantly reduced, avoiding the normal operation of the equipment being affected due to excessive temperature inside the equipment. After the temperature of the exhaust pipe is reduced, the heat accumulation inside the equipment is reduced, which helps to maintain the stable operation of the equipment and extend the service life of the equipment. Through effective improvement measures for the exhaust system, the temperature fluctuation of the workshop environment is reduced, which is beneficial to maintaining the clean environment for drug production and the safety of operators.

[0030] Example 2: The high-efficiency exhaust pipe system inside the potting machine, as Figure 1As shown in the figure, it includes a heat dissipation device 10. At the upper end of the inner wall of the heat dissipation device 10, a fan 11 is fixedly installed. At the air inlet of the fan 11, a high-efficiency filter net 12 is fixedly installed. On the right side wall of the high-efficiency filter net 12, an air inlet pipe is fixedly installed, and the end of the air inlet pipe far away from the high-efficiency filter net 12 is fixedly connected to the air outlet of the potting machine. At the air outlet at the bottom of the fan 11, an L-shaped shunt pipe 13 is fixedly installed. On the outer wall of the L-shaped shunt pipe 13, a shunt pipe heat insulation layer 14 is fixedly installed. At the bottom of the L-shaped shunt pipe 13, a U-shaped exhaust pipe 15 is fixedly installed. On the outer wall of the U-shaped exhaust pipe 15, an exhaust pipe heat insulation layer 16 is fixedly installed. At the bottom of the U-shaped exhaust pipe 15, a porous diffusion plate 17 is fixedly installed, and the upper end of the outer wall of the porous diffusion plate 17 is fixedly connected to the lower end of the inner wall of the heat dissipation device 10. The material of the shunt pipe heat insulation layer 14 is nano-aerogel, and the material of the exhaust pipe heat insulation layer 16 is nano-aerogel. The thermal conductivity of the shunt pipe heat insulation layer 14 is 0.01 W / (m·K), and the thermal conductivity of the exhaust pipe heat insulation layer 16 is 0.02 W / (m·K). The thickness of the shunt pipe heat insulation layer 14 is 10 mm, and the thickness of the exhaust pipe heat insulation layer 16 is 20 mm. The pore diameter of the porous diffusion plate 17 is 5 mm, and the porosity of the porous diffusion plate 17 is 50%. By setting the L-shaped shunt pipe 13, the exhaust air flow is shunted, reducing the exhaust pressure of a single pipe and improving the exhaust efficiency.

[0031] Embodiment 3: The high-efficiency exhaust pipe system inside the potting machine, as Figure 1 shown in the figure, it includes a heat dissipation device 10. At the upper end of the inner wall of the heat dissipation device 10, a fan 11 is fixedly installed. At the air inlet of the fan 11, a high-efficiency filter net 12 is fixedly installed. On the right side wall of the high-efficiency filter net 12, an air inlet pipe is fixedly installed, and the end of the air inlet pipe far away from the high-efficiency filter net 12 is fixedly connected to the air outlet of the potting machine. At the air outlet at the bottom of the fan 11, an L-shaped shunt pipe 13 is fixedly installed. On the outer wall of the L-shaped shunt pipe 13, a shunt pipe heat insulation layer 14 is fixedly installed. At the bottom of the L-shaped shunt pipe 13, a U-shaped exhaust pipe 15 is fixedly installed. On the outer wall of the U-shaped exhaust pipe 15, an exhaust pipe heat insulation layer 16 is fixedly installed. At the bottom of the U-shaped exhaust pipe 15, a porous diffusion plate 17 is fixedly installed, and the upper end of the outer wall of the porous diffusion plate 17 is fixedly connected to the lower end of the inner wall of the heat dissipation device 10. The material of the shunt pipe heat insulation layer 14 is nano-aerogel, and the material of the exhaust pipe heat insulation layer 16 is nano-aerogel. The thermal conductivity of the shunt pipe heat insulation layer 14 is 0.02 W / (m·K), and the thermal conductivity of the exhaust pipe heat insulation layer 16 is 0.02 W / (m·K). The thickness of the shunt pipe heat insulation layer 14 is 15 mm, and the thickness of the exhaust pipe heat insulation layer 16 is 15 mm. The pore diameter of the porous diffusion plate 17 is 8 mm, and the porosity of the porous diffusion plate 17 is 40%. By setting the shunt pipe heat insulation layer 14, the shunt pipe heat insulation layer 14 further reduces the heat leakage and maintains the temperature stability inside the L-shaped shunt pipe 13.

[0032] Example 4: An efficient exhaust duct system inside a potting machine, as Figure 1 shown, includes a heat dissipation device 10. At the upper end of the inner wall of the heat dissipation device 10, a fan 11 is fixedly installed. At the air inlet of the fan 11, an efficient filter net 12 is fixedly installed. On the right side wall surface of the efficient filter net 12, an air inlet pipe is fixedly installed, and the end of the air inlet pipe away from the efficient filter net 12 is fixedly connected to the exhaust port of the potting machine. At the bottom of the fan 11 at the air outlet, an L-shaped shunt pipe 13 is fixedly installed. On the outer wall of the L-shaped shunt pipe 13, a shunt pipe heat insulation layer 14 is fixedly installed. At the bottom of the L-shaped shunt pipe 13, a U-shaped exhaust pipe 15 is fixedly installed. On the outer wall of the U-shaped exhaust pipe 15, an exhaust pipe heat insulation layer 16 is fixedly installed. At the bottom of the U-shaped exhaust pipe 15, a porous diffusion plate 17 is fixedly installed, and the upper end of the outer wall of the porous diffusion plate 17 is fixedly connected to the lower end of the inner wall of the heat dissipation device 10. The material of the shunt pipe heat insulation layer 14 is nano-aerogel, and the material of the exhaust pipe heat insulation layer 16 is nano-aerogel. The thermal conductivity of the shunt pipe heat insulation layer 14 is 0.01 W / (m·K), and the thermal conductivity of the exhaust pipe heat insulation layer 16 is 0.01 W / (m·K). The thickness of the shunt pipe heat insulation layer 14 is 10 mm, and the thickness of the exhaust pipe heat insulation layer 16 is 10 mm. The aperture of the porous diffusion plate 17 is 5 mm, and the porosity of the porous diffusion plate 17 is 50%. By setting the shunt pipe heat insulation layer 14 and the exhaust pipe heat insulation layer 16, and the materials of both the shunt pipe heat insulation layer 14 and the exhaust pipe heat insulation layer 16 are nano-aerogel. Compared with ordinary glass fiber heat insulation materials, nano-aerogel has lower thermal conductivity and better heat insulation performance, can effectively reduce heat transfer, and improve the heat insulation effect of the exhaust duct system. In addition, nano-aerogel also has excellent corrosion resistance and stability, can adapt to the complex chemical environment and temperature changes during the drug production process, and ensure the long-term stable operation of the exhaust duct system.

[0033] Example 5: An efficient exhaust duct system inside a potting machine, as Figure 1As shown in the figure, it includes a heat dissipation device 10. At the upper end of the inner wall of the heat dissipation device 10, a fan 11 is fixedly installed. At the air inlet of the fan 11, a high-efficiency filter net 12 is fixedly installed. On the right side wall surface of the high-efficiency filter net 12, an air inlet pipe is fixedly installed, and the end of the air inlet pipe away from the high-efficiency filter net 12 is fixedly connected to the air outlet of the potting machine. At the bottom of the fan 11 at the air outlet, an L-shaped shunt pipe 13 is fixedly installed. On the outer wall of the L-shaped shunt pipe 13, a shunt pipe heat insulation layer 14 is fixedly installed. At the bottom of the L-shaped shunt pipe 13, a U-shaped exhaust pipe 15 is fixedly installed. On the outer wall of the U-shaped exhaust pipe 15, an exhaust pipe heat insulation layer 16 is fixedly installed. At the bottom of the U-shaped exhaust pipe 15, a porous diffuser plate 17 is fixedly installed, and the upper end of the outer wall of the porous diffuser plate 17 is fixedly connected to the lower end of the inner wall of the heat dissipation device 10. The material of the shunt pipe heat insulation layer 14 is nano-aerogel, and the material of the exhaust pipe heat insulation layer 16 is nano-aerogel. The thermal conductivity of the shunt pipe heat insulation layer 14 is 0.02 W / (m·K), and the thermal conductivity of the exhaust pipe heat insulation layer 16 is 0.01 W / (m·K). The thickness of the shunt pipe heat insulation layer 14 is 20 mm, and the thickness of the exhaust pipe heat insulation layer 16 is 10 mm. The pore diameter of the porous diffuser plate 17 is 8 mm, and the porosity of the porous diffuser plate 17 is 40%. By setting the porous diffuser plate 17, the pore diameter and porosity of the porous diffuser plate 17 are reasonably designed, which can evenly distribute the exhaust air flow, reduce the impact of the air flow on the surrounding environment, improve the exhaust efficiency at the same time, ensure the smooth air circulation in the workshop, and further maintain the cleanliness of drug production and the comfort of operators.

[0034] The working principle of the present invention: When heat is generated inside the potting machine, the heat dissipation device 10 starts, and the fan 11 starts to work. It inhales the air filtered by the high-efficiency filter net 12 through the air inlet pipe and extracts the hot air from the air outlet of the potting machine. After being compressed by the fan 11, the hot air enters the L-shaped shunt pipe 13. Since the shunt pipe heat insulation layer 14 is fixedly installed on the outer wall of the L-shaped shunt pipe 13, it can effectively reduce the heat transfer to the outside world and maintain the stability of the temperature inside the pipe. Subsequently, the hot air enters the U-shaped exhaust pipe 15. Similarly, since the exhaust pipe heat insulation layer 16 is fixedly installed on the outer wall of the U-shaped exhaust pipe 15, the heat leakage is further reduced. Finally, the hot air is evenly diffused under the equipment bottom plate through the porous diffuser plate 17, and quickly cools down after mixing with the cold air on the ground. The design of the porous diffuser plate 17 not only increases the uniformity of the exhaust air, but also improves the exhaust efficiency through the optimization of its porosity and pore diameter, and at the same time avoids the occurrence of local overheating. Through the optimized design and material selection of the entire exhaust pipe system, an efficient and stable exhaust effect is achieved, providing a strong guarantee for the normal operation of the potting machine.

[0035] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An efficient exhaust duct system inside a potting machine, including a heat dissipation device (10), characterized in that: At the upper end of the inner wall of the heat dissipation device (10), a blower (11) is fixedly installed. At the air inlet of the blower (11), a high-efficiency filter screen (12) is fixedly installed. On the right side wall surface of the high-efficiency filter screen (12), an air inlet pipe is fixedly installed, and the end of the air inlet pipe away from the high-efficiency filter screen (12) is fixedly connected to the air outlet of the potting machine. At the air outlet at the bottom of the blower (11), an L-shaped flow distribution pipe (13) is fixedly installed. On the outer wall of the L-shaped flow distribution pipe (13), a flow distribution pipe heat insulation layer (14) is fixedly installed. At the bottom of the L-shaped flow distribution pipe (13), a U-shaped exhaust pipe (15) is fixedly installed. On the outer wall of the U-shaped exhaust pipe (15), an exhaust pipe heat insulation layer (16) is fixedly installed. At the bottom of the U-shaped exhaust pipe (15), a porous diffusion plate (17) is fixedly installed, and the upper end of the outer wall of the porous diffusion plate (17) is fixedly connected to the lower end of the inner wall of the heat dissipation device (10).

2. The internal high-efficiency exhaust duct system of the potting machine according to claim 1, characterized in that: The material of the flow distribution pipe heat insulation layer (14) is nano-aerogel.

3. The high-efficiency exhaust duct system inside the potting machine according to claim 1, characterized in that: The material of the exhaust pipe heat insulation layer (16) is nano-aerogel.

4. The internal high-efficiency exhaust duct system of the potting machine according to claim 1, characterized in that: The thermal conductivity of the flow distribution pipe heat insulation layer (14) is ≤ 0.02 W / (m·K).

5. The internal high-efficiency exhaust duct system of the potting machine according to claim 1, wherein: The thermal conductivity of the exhaust pipe heat insulation layer (16) is ≤ 0.02 W / (m·K).

6. The high-efficiency exhaust air duct system inside the potting machine according to claim 1, characterized in that: The thickness of the flow distribution pipe heat insulation layer (14) is 10 - 20 mm.

7. The internal high-efficiency exhaust duct system of the potting machine according to claim 1, characterized in that: The thickness of the exhaust pipe heat insulation layer (16) is 10 - 20 mm.

8. The high-efficiency exhaust duct system inside the potting machine according to claim 1, characterized in that: The pore diameter of the porous diffusion plate (17) is 5 - 10 mm.

9. The high-efficiency exhaust duct system inside the potting machine according to claim 1, wherein: The porosity of the porous diffusion plate (17) is 30% - 50%.