A double air duct hot air assembly

Abstract

The application discloses a double-air-duct hot air assembly, which is a tubular structure as a whole, comprises an air inlet end head and an air outlet end head, and is fixedly sealed with a sleeve pipe of multiple pipe nesting, the sleeve pipe comprises an inner core quartz pipe, a heating pipe, a quartz outer lining pipe and an outer wall quartz pipe from inside to outside; wherein the heating pipe is tightly combined with the quartz outer lining pipe; a gap is left between the heating pipe and the inner core quartz pipe and is communicated with the air inlet end head and the air outlet end head to form an inner wall air duct; a gap is left between the quartz outer lining pipe and the outer wall quartz pipe and is communicated with the air inlet end head and the air outlet end head to form an outer wall air duct. The air ducts through which air flows of the hot air assembly do not contact metal materials, and the blown hot air does not contact metal ions. The equipment has the characteristics of precise temperature control, high-temperature dry burning protection, good sealing performance, high energy efficiency, fast heating rate, non-contact of hot air flow ducts with metal ions and the like.

Description

Technical Field

[0001] This invention relates to a hot air blower, and more specifically, to a hot air device in which neither the airflow channel nor the heating module comes into contact with metal ions. 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 requirements for heating equipment that does not come into contact with metal ions for specific applications. Summary of the Invention

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

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

[0005] A dual-duct hot air assembly is disclosed, comprising a tubular structure including an air inlet and an air outlet. A multi-tube nested sleeve is fixed between the air inlet and the air outlet. From the inside out, the sleeve includes an inner quartz tube, a heating element, a quartz outer liner tube, and an outer wall quartz tube. The heating element is tightly fitted to the quartz outer liner tube. A gap is left between the heating element and the inner quartz tube, which connects to the air inlet and the air outlet to form an inner wall air duct. A gap is left between the quartz outer liner tube and the outer wall quartz tube, which connects to the air inlet and the air outlet to form an outer wall air duct.

[0006] Furthermore, the air inlet and air outlet include symmetrically arranged air inlet and air outlet components, stainless steel pressure plates and inner core quartz tube fixing brackets fitted on the air inlet and air outlet components, and also include three fixing blocks for fixing the inner core quartz tube fixing bracket, heating element and quartz outer liner tube, and outer wall quartz tube, as well as multiple sealing rings and sealing strips for component sealing; the air inlet and air outlet are tightened by a screw mechanism through the stainless steel pressure plates.

[0007] Furthermore, the air inlet component is equipped with a wind pressure switch, and the air outlet component is equipped with a temperature sensor.

[0008] Furthermore, the heating element is an externally coated quartz tube.

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

[0010] Furthermore, the fixing block, air inlet component, and air outlet component are made of high-temperature resistant plastic material.

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

[0012] The outer-coated quartz tube and three other quartz tubes are fixed by a fixing block. The air inlet and outlet components are then fixed to the fixing block using a screw mechanism and stainless steel pressure plates, forming a complete air duct that prevents air from contacting metal ions as it passes through. The outer-coated quartz tube is a single nano-superlattice electrothermal film quartz glass tube, with copper electrode wires connecting both ends to energize the electrothermal film.

[0013] Working Principle: The air inlet of this product is connected to a fan that draws in ambient temperature air. After being heated by the outer coated quartz tube, hot air is blown out from the outlet. The entire air duct is sealed, preventing the hot air from contacting metal materials; therefore, the hot air at the outlet does not carry metal ions. The air inlet is equipped with a pressure switch to control heating. When the airflow reaches a certain level, the generated air pressure activates the switch, initiating the heating element's operation. When the outlet is blocked or closed, the pressure switch deactivates. The outlet is equipped with a temperature sensor to collect temperature data. This data is controlled by a high-performance chip and electronic control program to determine the operating or protection mode to meet usage requirements. When the heating film reaches the set temperature, the program stops heating to prevent damage to the components.

[0014] The beneficial effects of this invention are: the air ducts through which the air flows in this hot air assembly do not come into contact with metal materials, and the blown hot air does not come into contact with metal ions. This equipment features precise temperature control, high-temperature dry-burn protection, good sealing, high energy efficiency, fast heating rate, and hot air ducts that do not come into contact with metal ions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of the embodiment;

[0016] Figure 2 This is a cross-sectional view of an embodiment;

[0017] Figure 3 This is the left view of the embodiment;

[0018] Figure 4 This is an exploded view of the parts in the embodiment;

[0019] The labels in the diagram are as follows: 1-Air pressure switch, 2-Air inlet component, 3-Stainless steel pressure plate, 4-Inner core quartz tube fixing bracket, 5-Fixing block one, 6-Fixing block two, 7-Fixing block three, 8-Sealing strip, 9-Sealing ring one, 10-Sealing ring two, 11-Sealing ring three, 12-Sealing ring four, 13-Sealing ring five, 14-Outlet hole, 15-Inner core quartz tube, 16-Outer coated quartz tube, 17-Quartz outer liner tube, 18-Outer wall quartz tube, 19-Inner wall air duct, 20-Outer wall air duct, 21-Air outlet component, 22-Temperature sensor, 23-Screw, 24-Nut. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to embodiments, such as... Figures 1 to 4 As shown, a dual-duct hot air assembly is generally tubular in structure, including an air inlet and an air outlet. A multi-tube nested sleeve is fixed between the air inlet and outlet. From the inside out, the sleeve includes an inner core quartz tube 15, a heating element 16, a quartz outer liner tube 17, and an outer wall quartz tube 18. The heating element 16 is tightly fitted to the quartz outer liner tube 17. A gap is left between the heating element 16 and the inner core quartz tube 15, connecting with the air inlet and outlet to form an inner wall air duct 19. A gap is left between the quartz outer liner tube 17 and the outer wall quartz tube 18, connecting with the air inlet and outlet to form an outer wall air duct 20. The heating element 16 is an outer-coated quartz tube 16, specifically a nano-superlattice electrothermal film quartz glass tube 16.

[0021] The air inlet and outlet ends include symmetrically arranged air inlet components 2 and air outlet components 21, stainless steel pressure plates 3 and inner core quartz tube fixing brackets 4 fitted on the air inlet components 2 and air outlet components 21, and three fixing blocks 5, 6, and 7 for fixing the inner core quartz tube fixing bracket 4, heating element 16, quartz outer liner tube 17, and outer wall quartz tube 18, as well as multiple sealing rings 9, 10, 11, 12, 13 and sealing strips 8 for component sealing; the air inlet and outlet ends are tightened by a screw mechanism through the stainless steel pressure plates 3. The air inlet component 2 is equipped with a wind pressure switch 1, and the air outlet component 21 is equipped with a temperature sensor 22. The sealing rings 9, 10, 11, 12, 13 and sealing strips 8 are made of high-temperature resistant fluororubber; the fixing blocks 5, 6, and 7, the air inlet component 2 and air outlet component 21 are made of high-temperature resistant plastic.

[0022] 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 twin duct hot air assembly characterized by: The double-duct hot air assembly is a tubular structure as a whole, comprising an air inlet end and an air outlet end, and a sleeve pipe with multiple pipes nested between the air inlet end and the air outlet end, the sleeve pipe comprising, from inside to outside, an inner core quartz pipe, a heating pipe, a quartz outer lining pipe and an outer wall quartz pipe; the heating pipe is tightly attached to the quartz outer lining pipe; a gap is left between the heating pipe and the inner core quartz pipe and is communicated with the air inlet end and the air outlet end to form an inner wall air duct; a gap is left between the quartz outer lining pipe and the outer wall quartz pipe and is communicated with the air inlet end and the air outlet end to form an outer wall air duct; The air inlet end and the air outlet end comprise symmetrically arranged air inlet and outlet pieces, a stainless steel pressing sheet and an inner core quartz pipe fixing frame, and further comprise three fixing blocks for fixing the inner core quartz pipe fixing frame, the heating pipe and the quartz outer lining pipe, and a plurality of sealing rings and sealing strips for sealing the components; the air inlet end and the air outlet end are pulled tight by a screw rod mechanism through the stainless steel pressing sheet; A temperature sensor is arranged on the air outlet piece; the heating pipe is an outer-coated quartz pipe.

2. The dual duct hot air assembly of claim 1, wherein: The sealing rings and the sealing strips are made of high-temperature-resistant fluorine rubber material.

3. The dual duct hot air assembly of claim 1, wherein: The fixing blocks, the air inlet piece and the air outlet piece are made of high-temperature-resistant plastic material.

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

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