An explosion-proof heater with uniform heating

Abstract

The utility model discloses a kind of explosion-proof heaters of uniform heating, including junction box, heating pipe and heating cylinder, the upper side of the outer wall of heating cylinder is respectively provided with water inlet pipe and water outlet pipe, the inside of heating cylinder is horizontally provided with shunt plate below water inlet pipe, shunt plate is provided with multiple shunt holes, shunt plate below is provided with drainage plate, the inside of shunt plate and drainage plate is provided with uniform flow plate in the inside of heating cylinder, and shunt plate is provided with multiple uniform flow holes.The shunt plate provided by the utility model passes through evenly distributed shunt hole, and the medium flowing is initially evenly divided to different areas of the front end of heating cylinder, to avoid that local flow rate difference is too large;Drainage plate further guides medium flow, promotes mixing and reduces stagnation area;After shunting and drainage, the medium finally passes through uniform flow plate to the medium final homogenization, eliminate local flow rate difference, so that the medium enters heating area with more stable state, to effectively realize the uniform, efficient heating of medium.

Description

Technical Field

[0001] This utility model relates to an explosion-proof heater that provides uniform heating. Background Technology

[0002] An explosion-proof electric heater is a device used to heat a medium and has explosion-proof capabilities. It operates safely in environments with flammable and explosive risks, heating the medium by converting electrical energy into heat energy. Its unique structural design effectively prevents the ignition of internal explosive gas mixtures, making it widely used in industrial settings such as chemical and petroleum industries where heating and explosion-proof requirements are necessary.

[0003] However, in practical use, when the heating medium enters the heating cylinder of the explosion-proof electric heater, due to the lack of effective guiding and distribution devices, the medium often tends to concentrate its flow in localized areas, resulting in significant differences in the degree of heating of the medium at different locations within the heating cylinder. This uneven heating not only affects heating efficiency and leads to energy waste, but may also cause instability in the quality of the heated medium, failing to meet the requirements of some production processes that have high requirements for temperature uniformity. Utility Model Content

[0004] The main objective of this invention is to provide an explosion-proof heater that provides uniform heating, thereby addressing the problems mentioned in the background section.

[0005] The objective of this utility model can be achieved by adopting the following technical solution:

[0006] An explosion-proof heater with uniform heating includes a junction box, a heating tube, and a heating cylinder. An inlet pipe and an outlet pipe are respectively arranged on the upper sides of the outer wall of the heating cylinder. A flow divider plate is horizontally arranged below the inlet pipe on the inner side of the heating cylinder, and the flow divider plate has multiple flow divider holes. A flow guide plate is arranged below the flow divider plate. A flow equalization plate is arranged inside the heating cylinder on the inner side of the flow divider plate and the flow guide plate, and the flow equalization plate has multiple flow equalization holes.

[0007] Preferably, the plurality of flow splitting holes are evenly distributed on the flow splitting plate, and the plurality of flow equalizing holes are evenly distributed on the flow equalizing plate.

[0008] Preferably, the diversion plate is vertically positioned below the diversion plate.

[0009] Preferably, the drainage plate has multiple drainage holes evenly distributed on it.

[0010] Preferably, three diversion plates are provided, and the three diversion plates are evenly distributed below the diversion plate.

[0011] Preferably, the inner wall of the heating cylinder is provided with support grooves for inserting both ends of the flow divider plate.

[0012] Preferably, the heating cylinder has two guide plates spaced apart on the inner side of the flow equalization plate, and the guide plates have a plurality of guide holes evenly distributed on them.

[0013] Preferably, the guide plate has a semi-circular structure, and the two guide plates are alternately arranged on the left and right sides inside the heating cylinder.

[0014] The beneficial technical effects of this utility model are as follows:

[0015] The flow divider, flow guide, and flow equalization plate provided by this invention work synergistically to significantly improve the uniformity of medium flow and heating efficiency. The flow divider, through evenly distributed flow orifices, initially distributes the incoming medium to different areas at the front end of the heating cylinder, avoiding excessive local velocity differences. The flow guide further guides the medium flow, promoting mixing and reducing stagnant zones. Finally, the medium, after being divided and guided, is homogenized by the flow equalization plate, eliminating local velocity differences and allowing the medium to enter the heating zone in a more stable state. This effectively achieves uniform and efficient heating of the medium, while reducing energy loss and the risk of local overheating, ensuring the stability and safety of the heating process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the flow divider, flow guide plate, flow equalization plate, and flow deflector according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the heating cylinder and its internal structure according to an embodiment of the present invention;

[0018] Figure 3 This is a front view of the heating cylinder and its interior, according to an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the heating cylinder structure according to an embodiment of the present invention;

[0020] Figure 5 This is a cross-sectional view of an explosion-proof electric heater according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the explosion-proof electric heater structure according to an embodiment of the present invention.

[0022] In the diagram: 1. Junction box; 2. Heating tube; 3. Heating cylinder; 4. Inlet pipe; 5. Outlet pipe; 6. Diverter plate; 7. Diverter hole; 8. Drain plate; 9. Flow equalization plate; 10. Flow equalization hole; 11. Drain hole; 12. Support groove; 13. Guide plate; 14. Guide hole. Detailed Implementation

[0023] 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.

[0024] like Figures 1-6 As shown, the explosion-proof heater with uniform heating provided in this embodiment includes a junction box 1, a heating tube 2, and a heating cylinder 3. A water inlet pipe 4 and a water outlet pipe 5 are respectively provided on the upper two sides of the outer wall of the heating cylinder 3. A flow divider plate 6 is horizontally provided on the inner side of the heating cylinder 3 below the water inlet pipe 4. A plurality of flow divider holes 7 are provided on the flow divider plate 6. A flow guide plate 8 is provided below the flow divider plate 6. A flow equalization plate 9 is provided on the inner side of the flow divider plate 6 and the flow guide plate 8 inside the heating cylinder 3. A plurality of flow equalization holes 10 are provided on the flow equalization plate 9.

[0025] The flow divider 6 and the flow guide 8 evenly distribute the medium in the front part, and the flow equalization plate 9 further equalizes the flow velocity to ensure that the medium enters the heating area in the rear part evenly, thereby achieving uniform distribution of the medium, reducing stagnation and achieving efficient heating.

[0026] The flow divider 6 prevents the medium from directly impacting the heating tube 2, thus extending the service life of the heating tube 2.

[0027] In this embodiment, as Figure 1 As shown, multiple flow dividers 7 are evenly distributed on the flow divider plate 6. The even distribution of the flow dividers 7 ensures the initial uniform flow of the medium and reduces the stagnant zone. Multiple flow equalization holes 10 are evenly distributed on the flow equalization plate 9. The even distribution of the flow equalization holes 10 reduces local flow velocity differences and improves heating uniformity.

[0028] In this embodiment, as Figure 1 As shown, the flow guide plate 8 is vertically set below the flow divider plate 6. Through vertical guidance, the medium can more evenly cover the bottom and edge areas of the heating cylinder 3, reducing the phenomenon of excessively fast or slow local flow rates.

[0029] In this embodiment, as Figure 1 As shown, multiple drainage holes 11 are evenly distributed on the drainage plate 8, which can promote the turbulence and mixing of the medium, break the laminar flow state, make the medium fully mixed, and prevent temperature stratification.

[0030] In this embodiment, as Figure 1 As shown, there are three diversion plates 8, which are evenly distributed below the diversion plate 6 to enhance the diversion effect.

[0031] In this embodiment, as Figure 4 As shown, the inner wall of the heating cylinder 3 is provided with support grooves 12 for inserting both ends of the flow divider 6.

[0032] The flow divider plate 6 and the flow guide plate 8 are fixed on the flow equalization plate 9. The flow equalization plate 9 is fixedly connected to the heating tube 2. The end of the heating tube 2 is set in the junction box 1.

[0033] During assembly, the assembled junction box 1 and heating tube 2 are inserted into the heating cylinder 3, and finally sealed and fixed using a flange. During insertion, the flow divider 6 is aligned with the support groove 12 to provide more support for the flow divider 6 and prevent deformation due to long-term impact from the medium.

[0034] In this embodiment, as Figure 1 As shown, inside the heating cylinder 3, two guide plates 13 are spaced apart on the inner side of the flow equalization plate 9. Multiple guide holes 14 are evenly distributed on the guide plates 13. By changing the flow direction of the medium or increasing local disturbance, turbulence and mixing are promoted, breaking the laminar flow state and making the medium temperature distribution more uniform.

[0035] In this embodiment, as Figure 1 As shown, the guide plate 13 has a semi-circular structure. The two guide plates 13 are alternately arranged inside the heating cylinder 3 to guide the medium to different areas of the heating cylinder 3 and achieve uniform heating.

[0036] In summary, in this embodiment, the flow divider 6, flow guide 8, and flow equalization plate 9 work synergistically to significantly improve the uniformity of medium flow and heating efficiency. The flow divider 6, through its uniformly distributed flow divider holes 7, initially distributes the incoming medium evenly to different areas at the front end of the heating cylinder 3, avoiding excessive local velocity differences. The flow guide 8 further guides the medium flow, promoting mixing and reducing stagnant areas. Finally, the medium, after being divided and guided, undergoes final homogenization through the flow equalization plate 9, eliminating local velocity differences and allowing the medium to enter the heating area in a more stable state. This effectively achieves uniform and efficient heating of the medium, while reducing energy loss and the risk of local overheating, ensuring the stability and safety of the heating process.

[0037] 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. An explosion-proof heater with uniform heating, comprising a junction box (1), a heating tube (2), and a heating cylinder (3), characterized in that: Water inlet pipe (4) and water outlet pipe (5) are respectively provided on the upper two sides of the outer wall of the heating cylinder (3). A flow divider plate (6) is horizontally provided below the water inlet pipe (4) on the inner side of the heating cylinder (3). Multiple flow divider holes (7) are provided on the flow divider plate (6). A flow guide plate (8) is provided below the flow divider plate (6). A flow equalization plate (9) is provided inside the heating cylinder (3) on the inner side of the flow divider plate (6) and the flow guide plate (8). Multiple flow equalization holes (10) are provided on the flow equalization plate (9).

2. The explosion-proof heater with uniform heating according to claim 1, characterized in that: The multiple flow divider holes (7) are evenly distributed on the flow divider plate (6), and the multiple flow equalizer holes (10) are evenly distributed on the flow equalizer plate (9).

3. The explosion-proof heater with uniform heating according to claim 1, characterized in that: The diversion plate (8) is vertically positioned below the diversion plate (6).

4. The explosion-proof heater with uniform heating according to claim 1, characterized in that: The drainage plate (8) has multiple drainage holes (11) evenly distributed on it.

5. The explosion-proof heater with uniform heating according to claim 1, characterized in that: There are three diversion plates (8), which are evenly distributed below the diversion plate (6).

6. The explosion-proof heater with uniform heating according to claim 1, characterized in that: The inner wall of the heating cylinder (3) is provided with support grooves (12) for inserting both ends of the flow divider (6).

7. The explosion-proof heater with uniform heating according to claim 1, characterized in that: Inside the heating cylinder (3), there are two guide plates (13) spaced apart on the inner side of the flow equalization plate (9), and multiple guide holes (14) are evenly distributed on the guide plates (13).

8. The explosion-proof heater with uniform heating according to claim 7, characterized in that: The guide plate (13) has a semi-circular structure, and the two guide plates (13) are alternately arranged on the left and right sides inside the heating cylinder (3).

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