Multi-branch heating pipe hot air assembly

Abstract

The application discloses a multi-branch heating pipe hot air assembly, which is mainly cylindrical, and is provided with a tapered narrowing air inlet end and an air outlet end at two ends of the main body; the main body comprises an aluminum heat dissipation cylindrical shell provided with inward fins; the cylindrical shell is inwardly and sequentially nested with an aluminum cylindrical heat transfer main body and an aluminum inner core heat dissipation cylinder with the fins of the heat transfer main body outward; a plurality of through holes are uniformly distributed on the heat transfer main body in the axial direction, and a heating pipe not in contact with the heat transfer main body is arranged in the through hole; an outer wall air duct is arranged between the cylindrical shell and the heat transfer main body and is communicated with the air inlet end and the air outlet end; the heating pipe is communicated with the air inlet end and the air outlet end to form an inner core air duct; a heat transfer main body center air duct is arranged between the heat transfer main body and the inner core heat dissipation cylinder and is communicated with the air inlet end and the air outlet end; and the heat transfer main body and the heating pipe are fixed with the air inlet end and the air outlet end through fixing members located at two ends. The equipment has the characteristics of precise temperature control, high-temperature dry burning protection, good sealing performance, high energy efficiency, fast heating rate and high heat exchange efficiency.

Description

Technical Field

[0001] This invention relates to hot air blowers, and more specifically, to a hot air device that uses a nano-superlattice electrothermal film quartz glass tube as the heating element. Background Technology

[0002] In specialized production equipment, heated air is used to dry processed parts. This hot air heating is similar to a fan, but the air is electrically heated through various materials within the airflow channel, most commonly heating wires. Currently, there are generally no restrictions on the materials used in common hot air blowers, which mostly employ metals and plastics. However, these types of hot air blowers cannot meet the needs of rapidly heating equipment for specialized applications. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a multi-heating tube hot air assembly.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A multi-heating-tube hot air assembly, the main body of which is cylindrical, with tapered air inlet and outlet ends at both ends. The cylindrical body includes an aluminum heat dissipation cylindrical shell with inwardly facing fins. An aluminum cylindrical heat transfer body and an aluminum inner core heat dissipation cylinder with outwardly facing fins are nested sequentially within the cylindrical shell. Multiple through holes are evenly distributed along the axial direction on the heat transfer body, and heating tubes that do not contact the heat transfer body are placed within these through holes. An outer wall air duct connecting the cylindrical shell and the heat transfer body to the air inlet and outlet ends is provided. The heating tubes connect to the air inlet and outlet ends to form an inner core air duct. A central air duct connecting the heat transfer body to the air inlet and outlet ends is provided between the heat transfer body and the inner core heat dissipation cylinder. The heat transfer body and heating tubes are fixed to the air inlet and outlet ends by fasteners located at both ends. The heat transfer element is in close contact with the fins of the cylindrical shell and the inner heat sink, allowing heat to be rapidly transferred from the heat transfer element to the cylindrical shell and the inner heat sink. Heat is then carried away through the outer wall air duct formed by the heat transfer element and the cylindrical shell and the inner heat sink, as well as through the central air duct of the heat transfer element. Simultaneously, the inner air ducts of the multiple heating elements also rapidly remove heat. This triple air duct design ensures high heat exchange efficiency for the hot air assembly.

[0006] Furthermore, the air inlet end and the air outlet end are fixedly connected to the cylindrical shell by a sealing ring through a flared opening; the fixing component includes a tightly fitting heating tube fixing cover and a heating tube fixing cover bottom from the outside to the inside; the heating tube fixing cover and the heating tube fixing cover bottom are provided with holes corresponding to the through holes of the heat transfer body; the end of the heating tube passes through the holes of the heating tube fixing cover bottom and the heating tube fixing cover respectively, and is sealed with the hole of the heating tube fixing cover by a double-sided sealing ring provided on the outer periphery of the heating tube end.

[0007] Furthermore, a pressure switch is provided on the air inlet end, and a temperature sensor is provided on the air outlet end.

[0008] Furthermore, the heating element is an externally coated quartz tube, and the heating film is energized through copper electrode connecting wires at both ends of the heating element. The connecting wires are led out through a sealed conduit installed in the wire outlet hole that runs through the heating element fixing cover and the cylindrical shell.

[0009] Furthermore, the sealing ring and the double-sided sealing ring are made of high-temperature resistant fluororubber material.

[0010] Furthermore, the fixing component is made of high-temperature resistant plastic. The use of this high-temperature resistant plastic fixing component, along with the double-sided sealing ring, prevents the heating element from contacting the heat transfer body, thus avoiding electrical conductivity and leakage. The heating element fixing cover, combined with the double-sided sealing ring, also isolates the air, preventing wind from blowing onto the electrodes and the heating coating.

[0011] Furthermore, the outer coated quartz tube is a nano-superlattice electrothermal film quartz glass tube.

[0012] Working Principle: The air inlet of this invention is connected to a fan to deliver room temperature air into the interior. After being heated by multiple externally coated quartz tubes, hot air is blown out from the air outlet. The entire air duct is sealed. An air pressure switch is installed at the air inlet to control heating. When the airflow reaches a certain level, the generated air pressure opens the switch, causing the heating element to start working. When the air outlet is blocked or closed, the air pressure switch disconnects. A temperature sensor at the air outlet collects the temperature data. The controller's high-performance chip and electronic control program determine the operating or protection mode to meet usage requirements. When the heating film temperature reaches the set temperature, the program stops heating to prevent damage to the components.

[0013] The beneficial effects of this invention are: this equipment has the characteristics of precise temperature control, high-temperature dry burning protection, good sealing performance, high energy efficiency, fast heating rate, and high heat exchange efficiency. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of an embodiment;

[0015] Figure 2 This is the left view of the embodiment;

[0016] Figure 3 This is an exploded view of the parts in the embodiment;

[0017] The labels in the diagram are as follows: 1-Air pressure switch, 2-Air inlet end, 3-Double-sided sealing ring, 4-Screw, 5-Sealing ring, 6-Heating element fixing cover, 7-Heating element fixing cover bottom, 8-Sealed conduit, 9-Outer wall air duct, 10-Inner core air duct, 11-Heat transfer body central air duct, 12-Cylindrical shell, 13-Heat transfer body, 14-Outer coated quartz tube, 15-Inner core heat sink, 16-Temperature sensor, 17-Air outlet end. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to embodiments, such as... Figures 1 to 3 As shown, a multi-heating-tube hot air assembly is disclosed. The main body of the hot air assembly is cylindrical, with tapered air inlet end 2 and air outlet end 17 at both ends. The cylindrical main body includes an aluminum heat dissipation cylindrical shell 12 with inwardly facing fins. The air inlet end 2 and air outlet end 17 are fixedly connected to the cylindrical shell 12 via flared ends and sealing rings 5. An aluminum cylindrical heat transfer body 13 and an aluminum inner core heat dissipation cylinder 15 with outwardly facing fins are nested inwardly within the cylindrical shell 12. The heat transfer body 13 has multiple through holes evenly distributed along the axial direction, and heating tubes 14 that are not in contact with the heat transfer body 13 are disposed in the through holes. An outer wall air duct 9 is provided between the cylindrical shell 12 and the heat transfer body 13, communicating with the air inlet and outlet ends 2 and 17. The heating tubes 14 and the air inlet and outlet ends 17 are connected to the air inlet and outlet ends 17. The air inlet and outlet ends 2 and 17 are connected to form an inner core air duct 10; a central air duct 11 for the heat transfer body is provided between the heat transfer body 13 and the inner core heat dissipation cylinder 15, which is connected to the air inlet and outlet ends 2 and 17; the heat transfer body 13 and the heating tube 14 are fixed to the air inlet and outlet ends 2 and 17 by fixing members located at both ends; the fixing members are made of high temperature resistant plastic material, and the fixing members include a tightly fitting heating tube fixing cover 6 and a heating tube fixing cover bottom 7 from the outside to the inside; the heating tube fixing cover 6 and the heating tube fixing cover bottom 7 have holes corresponding to the through holes of the heat transfer body 13; the end of the heating tube 14 passes through the holes of the heating tube fixing cover bottom 7 and the heating tube fixing cover 6 respectively, and is sealed to the hole of the heating tube fixing cover 6 by a double-sided sealing ring 3 provided on the outer periphery of the end of the heating tube 14. A wind pressure switch 1 is provided on the air inlet end 2, and a temperature sensor 16 is provided on the air outlet end 17. The heating element 14 is an outer coated quartz tube 14, which is a nano-superlattice electrothermal film quartz glass tube 14. The electrothermal film is energized through copper electrode connecting wires at both ends of the heating element 14. The connecting wires are led out through the sealing wire tube 8 set in the wire outlet hole through the heating element fixing cover 6 and the cylindrical shell 12. The sealing ring 5 and the double-sided sealing ring 3 are made of high-temperature resistant fluororubber material.

[0019] The above content is only used to illustrate the technical solution of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A multi-branch heating tube hot air assembly, characterized in that: The hot air assembly body is cylindrical, and the two ends of the cylindrical body are provided with tapered narrowing air inlet ends and air outlet ends; the cylindrical body comprises an aluminum heat dissipation cylindrical shell provided with inward fins, and the cylindrical shell is inwardly nested with an aluminum cylindrical heat transfer body and an aluminum inner core heat dissipation cylinder with outward fins; the heat transfer body is uniformly provided with a plurality of through holes in the axial direction, and the through holes are provided with heating tubes which are not in contact with the heat transfer body; the cylindrical shell and the heat transfer body are provided with outer wall air ducts which are communicated with the air inlet and outlet ends; the heating tubes are communicated with the air inlet and outlet ends to form inner core air ducts; the heat transfer body and the inner core heat dissipation cylinder are provided with heat transfer body center air ducts which are communicated with the air inlet and outlet ends; the heat transfer body and the heating tubes are fixed with the air inlet and outlet ends through fixing members located at the two ends; The air inlet and outlet ends are fixedly connected with the cylindrical shell through a skimmer and a sealing ring; the fixing member comprises a tightly fitted heating tube fixing cover and a heating tube fixing cover bottom from outside to inside; the heating tube fixing cover and the heating tube fixing cover bottom are provided with holes corresponding to the through holes of the heat transfer body; the ends of the heating tubes respectively pass through the holes of the heating tube fixing cover bottom and the heating tube fixing cover, and are sealed with double-sided sealing rings provided on the outer periphery of the heating tube ends and the holes of the heating tube fixing cover; The air inlet end is provided with an air pressure switch, and the air outlet end is provided with a temperature sensor; The heating tube is an outer-coated quartz tube, and the copper electrode connecting wires at the two ends of the heating tube are connected to the electric heating film to supply power; the connecting wires are led out through the sealing wire pipe provided in the wire outlet hole of the heating tube fixing cover and the cylindrical shell.

2. The multi-branch heating tube hot air assembly according to claim 1, characterized in that: The sealing ring and the double-sided sealing ring are made of high-temperature-resistant fluorine rubber material.

3. The multi-branch heating tube hot air assembly according to claim 1, characterized in that: The fixing member is made of high-temperature-resistant plastic material.

4. The multi-tube hot air assembly of claim 1, wherein: The outer-coated quartz tube is a nano superlattice electric heating film quartz glass tube.

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