A high-efficiency, energy-saving explosion-proof heater

Abstract

This utility model discloses a high-efficiency and energy-saving explosion-proof heater, including an explosion-proof junction box, a heating tube, and a heating cylinder. A spiral guide plate is arranged along the length of the heating cylinder. The heating tube is located at the center of the spiral guide plate, and a stirring shaft is arranged along the length of the heating tube at its center. One end of the stirring shaft is rotatably connected to the bottom surface of the explosion-proof junction box, and the other end extends out of the tail of the heating cylinder and is connected to the output shaft of a motor. The spiral guide plate provided by this utility model extends the residence time of the medium, and, in conjunction with the stirring shaft and spiral stirring blades, enhances turbulence and mixing, improving heating uniformity. The heat-conducting column expands the heat exchange area, and the spiral distribution adapts to the medium flow direction, reducing resistance while enhancing heat transfer. Overall, by optimizing the medium flow path, enhancing heat exchange efficiency, and eliminating heating dead zones, high efficiency and energy saving are achieved.

Description

Technical Field

[0001] This utility model relates to a high-efficiency, energy-saving, explosion-proof heater. Background Technology

[0002] Explosion-proof electric heaters are special heating devices designed for environments with flammable and explosive hazards. Through their unique structural design and material selection, they effectively prevent explosions caused by electrical sparks, high temperatures, and other factors. Their working principle typically involves using an electric current passing through a resistive element to generate heat, which is then transferred to the heated medium. They are widely used in numerous industries such as chemical, petroleum, and natural gas, ensuring safe operation during production processes.

[0003] However, existing explosion-proof electric heaters face a problem in practical use: when the heating medium enters the cylinder for heating, its residence time is often short, and the contact area with the heating tube is insufficient. This results in heat not being effectively transferred from the heating tube to the medium, and a large amount of electrical energy is converted into ineffective heat energy, causing energy waste and low heating efficiency. Utility Model Content

[0004] The main objective of this invention is to provide a high-efficiency, energy-saving, explosion-proof heater to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved by adopting the following technical solution: A high-efficiency and energy-saving explosion-proof heater includes an explosion-proof junction box, a heating tube, and a heating cylinder. A spiral guide plate is arranged inside the heating cylinder along its length. The heating tube is located at the center of the spiral guide plate. A stirring shaft is arranged at the center of the heating tube along its length. One end of the stirring shaft is rotatably connected to the bottom surface of the explosion-proof junction box, and the other end of the stirring shaft extends out of the tail of the heating cylinder and is connected to the output shaft of a motor.

[0006] Preferably, the two ends of the spiral guide plate are respectively connected to the top and bottom surfaces of the inner wall of the heating cylinder.

[0007] Preferably, the stirring shaft is provided with spiral stirring blades.

[0008] Preferably, the outer wall of the heating tube is provided with multiple outwardly extending heat-conducting columns.

[0009] Preferably, the plurality of heat-conducting columns are distributed in a spiral downward shape on the outer wall of the heating tube, and each heat-conducting column is disposed between two adjacent layers of the spiral guide plate.

[0010] Preferably, the two ends of the heat-conducting column are connected to the outer wall of the heating tube and the inner wall of the heating cylinder, respectively.

[0011] Preferably, the heating cylinder is provided with an extension tube at its tail end, and the other end of the stirring shaft extends into and out of the extension tube, and the other end of the stirring shaft is rotatably connected to the extension tube.

[0012] Preferably, the bottom surface of the heating cylinder is provided with support legs.

[0013] The beneficial technical effects of this utility model are as follows: The spiral guide plate provided by this invention extends the residence time of the medium, and, in conjunction with the stirring shaft and spiral stirring blades, enhances turbulence and mixing, thereby improving heating uniformity. The heat-conducting columns expand the heat exchange area, and the spiral distribution adapts to the medium flow direction, reducing resistance while enhancing heat transfer. Overall, by optimizing the medium flow path, enhancing heat exchange efficiency, and eliminating heating dead zones, high efficiency and energy saving are achieved. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the explosion-proof heater structure according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of an explosion-proof heater according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the heating cylinder in an embodiment of the present invention; Figure 4 This is a left-side internal view of the heating cylinder according to an embodiment of the present invention. Figure 5 This is a schematic diagram showing the location distribution of the heat-conducting columns in an embodiment of this utility model.

[0015] In the diagram: 1. Explosion-proof junction box; 2. Heating tube; 3. Heating cylinder; 4. Spiral guide plate; 5. Stirring shaft; 6. Motor; 7. Spiral stirring blade; 8. Heat-conducting column; 9. Extension tube; 10. Support leg. Detailed Implementation

[0016] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0017] like Figures 1-5 As shown, the high-efficiency and energy-saving explosion-proof heater provided in this embodiment includes an explosion-proof junction box 1, a heating tube 2, and a heating cylinder 3. A spiral guide plate 4 is arranged inside the heating cylinder 3 along its length direction. The heating tube 2 is located at the center of the spiral guide plate 4. A stirring shaft 5 is arranged at the center of the heating tube 2 along its length direction. One end of the stirring shaft 5 is rotatably connected to the bottom surface of the explosion-proof junction box 1, and the other end of the stirring shaft 5 extends out of the tail of the heating cylinder 3 and is connected to the output shaft of the motor 6.

[0018] The spiral structure of the spiral guide plate 4 forces the medium to move in a spiral motion along the length of the heating cylinder 3, extending the residence time of the medium in the heating cylinder 3, ensuring full contact with the heating tube 2, and improving heat exchange efficiency. Furthermore, during the spiral flow process, the collision and friction between the medium and the spiral guide plate 4 and the outer wall of the heating tube 2 will enhance turbulence, break the medium boundary layer, accelerate the transfer of heat from the heating tube 2 to the medium, and increase the heating speed.

[0019] Some of the medium directly enters the central part of the heating tube 2 and is stirred by the stirring shaft 5, which can quickly diffuse the high-temperature medium in the center of the heating tube 2 to the edge of the cylinder, accelerating the diffusion of heat from the center to the edge.

[0020] In this embodiment, as Figure 1 As shown, the two ends of the spiral guide plate 4 are respectively connected to the top and bottom surfaces of the inner wall of the heating cylinder 3 to ensure structural durability while maintaining the consistency of the spiral path.

[0021] In this embodiment, as Figure 2 As shown, a spiral stirring blade 7 is provided on the stirring shaft 5. When the spiral stirring blade 7 rotates with the shaft, it will generate axial pushing and radial stirring effect on the medium, breaking the stratification formed by the temperature difference of the medium, allowing the heat to spread quickly to the entire heating cylinder 3, and improving the heating uniformity.

[0022] In this embodiment, as Figure 2 As shown, multiple outwardly extending heat-conducting columns 8 are provided on the outer wall of the heating tube 2, which increases the contact area between the heating tube 2 and the medium, thereby improving the heat transfer efficiency and reducing the overheating loss of the heating tube 2 itself without increasing the size of the heating tube 2 body.

[0023] In this embodiment, as Figure 5 As shown, multiple heat-conducting columns 8 are distributed in a spiral downward shape on the outer wall of the heating tube 2. Each heat-conducting column 8 is set between two adjacent layers of the spiral guide plate 4. The spiral downward distribution is consistent with the spiral flow direction of the medium guided by the spiral guide plate 4, which further improves the heating uniformity and reduces energy waste caused by local temperature differences.

[0024] In this embodiment, as Figure 2 As shown, the two ends of the heat-conducting column 8 are connected to the outer wall of the heating tube 2 and the inner wall of the heating cylinder 3, respectively. In addition to its heat conduction function, the heat-conducting column 8 also serves as a connection support between the heating tube 2 and the heating cylinder 3, enhancing the stability of the heating tube 2 within the heating cylinder 3, preventing poor contact or damage to the heating tube 2 due to shaking, and extending its service life.

[0025] In this embodiment, as Figure 2As shown, the heating cylinder 3 is provided with an extension tube 9 at its tail end. The other end of the stirring shaft 5 extends into and out of the extension tube 9. The other end of the stirring shaft 5 is rotatably connected to the extension tube 9. A sealing structure can be provided inside to prevent the leakage of the medium inside the heating cylinder 3, while isolating the electric sparks generated by the operation of the motor 6 and enhancing explosion-proof safety.

[0026] In this embodiment, as Figure 1 As shown, the bottom surface of the heating cylinder 3 is provided with a support leg 10. The support leg 10 raises the heating cylinder 3 to prevent the bottom surface from directly contacting the ground, while ensuring that the heating cylinder 3 is placed horizontally to avoid uneven medium flow or local overheating caused by tilting.

[0027] In summary, in this embodiment, the spiral guide plate 4 extends the residence time of the medium, and in conjunction with the stirring shaft 5 and the spiral stirring blades 7, it enhances turbulence and mixing, thereby improving heating uniformity. The heat-conducting column 8 expands the heat exchange area, and its spiral distribution adapts to the medium flow direction, reducing resistance while enhancing heat transfer. Overall, by optimizing the medium flow path, enhancing heat exchange efficiency, and eliminating heating dead zones, high efficiency and energy saving are achieved.

[0028] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A high-efficiency and energy-saving explosion-proof heater, comprising an explosion-proof junction box (1), a heating tube (2), and a heating cylinder (3), characterized in that: The heating cylinder (3) has a spiral guide plate (4) arranged inside it along its length direction. The heating tube (2) is located at the center of the spiral guide plate (4). The center of the heating tube (2) is arranged along its length direction with a stirring shaft (5). One end of the stirring shaft (5) is rotatably connected to the bottom surface of the explosion-proof junction box (1). The other end of the stirring shaft (5) extends out of the tail of the heating cylinder (3) and is connected to the output shaft of the motor (6).

2. The high-efficiency and energy-saving explosion-proof heater according to claim 1, characterized in that: The two ends of the spiral guide plate (4) are respectively connected to the top and bottom surfaces of the inner wall of the heating cylinder (3).

3. The high-efficiency, energy-saving, explosion-proof heater according to claim 1, characterized in that: Spiral stirring blades (7) are provided on the stirring shaft (5).

4. The high-efficiency and energy-saving explosion-proof heater according to claim 1, characterized in that: The outer wall of the heating tube (2) is provided with multiple outwardly extending heat-conducting columns (8).

5. The high-efficiency, energy-saving, explosion-proof heater according to claim 4, characterized in that: Multiple heat-conducting columns (8) are distributed in a spiral downward shape on the outer wall of the heating tube (2), and each heat-conducting column (8) is disposed between two adjacent layers of the spiral guide plate (4).

6. The high-efficiency and energy-saving explosion-proof heater according to claim 4, characterized in that: The two ends of the heat-conducting column (8) are respectively connected to the outer wall of the heating tube (2) and the inner wall of the heating cylinder (3).

7. The high-efficiency and energy-saving explosion-proof heater according to claim 1, characterized in that: The heating cylinder (3) is provided with an extension tube (9) at its tail end. The other end of the stirring shaft (5) extends into and out of the extension tube (9). The other end of the stirring shaft (5) is rotatably connected to the extension tube (9).

8. The high-efficiency and energy-saving explosion-proof heater according to claim 1, characterized in that: The bottom surface of the heating cylinder (3) is provided with support legs (10).

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