Heat tracing apparatus for a liquid sulphur conduit

Abstract

The utility model discloses a kind of heat tracing equipment of liquid sulphur guide pipe, it is related to pipeline heat tracing technical field, including heat conducting layer and thermal insulation layer, the heat conducting layer is connected with thermal insulation layer, electric heating wire is buried between the heat conducting layer and thermal insulation layer, the bottom of the heat conducting layer is connected with multiple magnetic suction piece, the heat conducting layer and thermal insulation layer two ends are respectively connected with first connecting block and second connecting block, connection unit is set on the first connecting block and second connecting block for splicing extension use.The heat tracing equipment in the utility model can be spliced and used, and is laid on the outer wall of guide pipe in the form of spiral winding, the heat tracing equipment is heated by electrifying electric heating wire to guide pipe, to ensure that liquid sulphur flows smoothly in guide pipe, when single heat tracing equipment is damaged, only need to disassemble single to replace, maintenance cost is low, convenient and fast replacement, and heat tracing equipment can be applicable to guide pipe of different pipe diameter, and good practicability.

Description

Technical Field

[0001] This utility model relates to the field of pipeline heat tracing technology, and in particular to a heat tracing device for a liquid sulfur conduit. Background Technology

[0002] Liquid sulfur (molten sulfur) is an important chemical raw material widely used in fertilizer production, petroleum refining, rubber vulcanization and other fields. Liquid sulfur has a high freezing point (112-119℃). When the ambient temperature is lower than this range or the local heat dissipation of the pipeline is too fast, liquid sulfur will solidify rapidly, causing pipe blockage, interruption of transportation, and even equipment damage or safety accidents.

[0003] To address the issue of liquid sulfur solidification, existing technologies primarily involve directly embedding heating elements (such as steam jackets or heating wires) into the pipe wall or outer layer, forming an integrated structure with the pipe. However, if the heating element is damaged (e.g., the heating wire breaks or the steam jacket leaks), the entire pipe needs to be replaced, resulting in high maintenance costs, long maintenance cycles, and incompatibility with existing pipes of different diameters. Modifications require redesigning the entire pipe system, leading to low flexibility. Therefore, a heating device for liquid sulfur conduits is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a heat tracing device for liquid sulfur conduits.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A heat tracing device for a liquid sulfur conduit includes a heat-conducting layer and a heat-insulating layer. The heat-conducting layer and the heat-insulating layer are connected. An electric heating wire is embedded between the heat-conducting layer and the heat-insulating layer. Multiple magnetic absorbing plates are connected to the bottom of the heat-conducting layer. A first connecting block and a second connecting block are respectively connected to both ends of the heat-conducting layer and the heat-insulating layer. The first connecting block and the second connecting block are provided with connecting units for splicing and extension.

[0006] Preferably, the connecting unit includes an insert block and a limiting block. The first connecting block has a slot corresponding to the size of the insert block. The insert block is connected to the second connecting block. The top surface of the first connecting block has a communicating groove that communicates with the slot. The limiting block is slidably connected to the communicating groove. The top of the limiting block is connected to a pull block. The bottom of the pull block is connected to two springs. The lower ends of the two springs are connected to the first connecting block. The insert block has a limiting groove corresponding to the limiting block.

[0007] Preferably, the lower end of the limiting block is wedge-shaped, and the inclined surface faces the slot opening side.

[0008] Preferably, positive magnetic strips and negative magnetic strips are connected to the two sides of the heat-conducting layer and the heat-insulating layer, respectively.

[0009] Preferably, the thermally conductive layer is made of a high thermal conductivity material, and the thermal insulation layer is made of ceramic fiber material.

[0010] Preferably, the thickness of the thermally conductive layer is 3-5 mm.

[0011] Preferably, the thickness of the thermal insulation layer is 20-30mm.

[0012] Compared with the prior art, the advantages of this utility model are: The heat tracing equipment in this invention can be spliced ​​together and laid on the outer wall of the conduit in a spiral winding manner. By energizing the heating wire, heat is generated to trace the conduit, ensuring that liquid sulfur flows smoothly inside the conduit. When a single heat tracing device is damaged, only the individual device needs to be disassembled and replaced, resulting in low maintenance costs and convenient and quick replacement. Furthermore, the heat tracing equipment is applicable to conduits of different diameters, making it highly practical. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a structural schematic diagram of the present invention from another angle.

[0015] Figure 3 This is a side sectional view of the present invention.

[0016] Figure 4 This is a schematic diagram of the structure of the heat-conducting layer and the heating wire in this utility model.

[0017] Figure 5 This is a cross-sectional view of the structure of this utility model.

[0018] Figure 6 for Figure 5 Enlarged diagram of point A in the middle.

[0019] Figure 7 This is a schematic diagram showing the state of the present invention wound around the liquid sulfur conduit.

[0020] In the diagram: 1. Heat-conducting layer, 2. Thermal insulation layer, 3. Heating wire, 4. Positive magnetic strip, 5. Negative magnetic strip, 6. Magnetic sheet, 7. First connecting block, 8. Second connecting block, 9. Slot, 10. Insertion block, 11. Connecting groove, 12. Limiting block, 13. Pull block, 14. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-6 As shown, a heat tracing device for a liquid sulfur conduit is characterized by comprising a heat-conducting layer 1 and a heat-insulating layer 2, wherein the heat-conducting layer 1 and the heat-insulating layer 2 are connected, an electric heating wire 3 is embedded between the heat-conducting layer 1 and the heat-insulating layer 2, a plurality of magnetic absorbing plates 6 are connected to the bottom of the heat-conducting layer 1, and a first connecting block 7 and a second connecting block 8 are respectively connected to both ends of the heat-conducting layer 1 and the heat-insulating layer 2, wherein the first connecting block 7 and the second connecting block 8 are provided with connecting units for splicing and extension.

[0023] In this embodiment, the connecting unit includes an insert block 10 and a limiting block 12. The first connecting block 7 has a slot 9 that corresponds to the size of the insert block 10. The insert block 10 is connected to the second connecting block 8. The top surface of the first connecting block 7 has a communicating groove 11 that communicates with the slot 9. The limiting block 12 is slidably connected to the communicating groove 11. The top of the limiting block 12 is connected to a pull block 13. The bottom of the pull block 13 is connected to two springs 14. The lower ends of the two springs 14 are connected to the first connecting block 7. The insert block 10 has a limiting groove that corresponds to the limiting block 12.

[0024] In this embodiment, the lower end of the limiting block 12 is wedge-shaped, and the inclined surface faces the slot opening of the slot 9.

[0025] In this embodiment, positive magnetic strips 4 and negative magnetic strips 5 are respectively connected to the two sides of the heat-conducting layer 1 and the heat insulation layer 2. When the entire heat tracing device is spirally wound on the outer wall of the conduit, the positive magnetic strips 4 and negative magnetic strips 5 will approach and attract each other, effectively reducing the gaps between the spiral windings and reducing the heat generated by the heating wire 3 from being lost through the gaps.

[0026] In this embodiment, the heat-conducting layer 1 is made of a high thermal conductivity material, and the heat insulation layer is made of ceramic fiber material. The low thermal conductivity of ceramic fiber material can significantly reduce the heat loss of the heat tracing equipment, effectively reduce the heat loss of the heating wire 3 to the surrounding environment, and improve energy utilization efficiency.

[0027] The thermally conductive layer 1 has a thickness of 3-5 mm, and the thermal insulation layer 2 has a thickness of 20-30 mm.

[0028] Working process and its principle: In use, multiple heat tracing devices can be spliced ​​together. By inserting the plug 10 of the next heat tracing device into the slot 9 of the previous heat tracing device, during the insertion process, the plug 10 will push the wedge-shaped inclined surface of the limiting block 12, causing the limiting block 12 to slide upward. When the plug 10 is fully inserted, the limiting groove on the plug 10 is aligned with the connecting groove 11. Under the action of the spring 14, the limiting block 12 slides down and inserts into the limiting groove, realizing the splicing of the two heat tracing devices end to end. Then, the spliced ​​heat tracing device is laid on the outer wall of the conduit in a spiral winding manner. The magnetic attraction of the magnetic suction plate 6 on the conduit is used to achieve adhesion. The conduit is heated by passing electricity through the heating wire to ensure that the liquid sulfur flows smoothly in the conduit.

[0029] When a single heat tracing device is damaged, only the individual device needs to be disassembled and replaced, resulting in low maintenance costs, convenient and quick replacement, and the heat tracing device can be used with conduits of different diameters.

[0030] The above description is only a preferred 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 technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A heat tracing device for a liquid sulfur conduit, characterized in that, It includes a heat-conducting layer (1) and a heat-insulating layer (2). The heat-conducting layer (1) is connected to the heat-insulating layer (2). An electric heating wire (3) is embedded between the heat-conducting layer (1) and the heat-insulating layer (2). Multiple magnetic absorbing pieces (6) are connected to the bottom of the heat-conducting layer (1). A first connecting block (7) and a second connecting block (8) are respectively connected to the two ends of the heat-conducting layer (1) and the heat-insulating layer (2). The first connecting block (7) and the second connecting block (8) are provided with connecting units for splicing and extension. The connecting unit includes a plug (10) and a limiting block (12). The first connecting block (7) has a slot (9) corresponding to the size of the plug (10). The plug (10) is connected to the second connecting block (8). The top surface of the first connecting block (7) has a connecting groove (11) that is connected to the slot (9). The limiting block (12) is slidably connected to the connecting groove (11). The top of the limiting block (12) is connected to a pull block (13). The bottom of the pull block (13) is connected to two springs (14). The lower ends of the two springs (14) are connected to the first connecting block (7). The plug (10) has a limiting groove corresponding to the limiting block (12).

2. The heat tracing device for a liquid sulfur conduit according to claim 1, characterized in that, The lower end of the limiting block (12) is wedge-shaped, and the inclined surface faces the slot (9) opening side.

3. The heat tracing device for a liquid sulfur conduit according to claim 1, characterized in that, The heat-conducting layer (1) and the heat-insulating layer (2) are respectively connected to positive magnetic strips (4) and negative magnetic strips (5) on both sides.

4. The heat tracing device for a liquid sulfur conduit according to claim 1, characterized in that, The thermally conductive layer (1) is made of a high thermal conductivity material, and the thermal insulation layer is made of ceramic fiber material.

5. The heat tracing device for a liquid sulfur conduit according to claim 1, characterized in that, The thickness of the thermally conductive layer (1) is 3-5 mm.

6. The heat tracing device for a liquid sulfur conduit according to claim 1, characterized in that, The thickness of the thermal insulation layer (2) is 20-30mm.

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