Electric heating drain cylinder for railway

Abstract

The utility model discloses a railway electric heating drainage cylinder relates to railway facility maintenance technical field, including the main pipe, the main pipe one side is provided with heating assembly, the main pipe both ends are provided with the connecting component, the main pipe outside is provided with the outer sheath, the outer sheath inboard is provided with the heat preservation protective layer, the heat preservation protective layer inboard is provided with the insulating layer, the insulating layer inboard is provided with integrated heating layer, the integrated heating layer inboard is provided with the inner anticorrosive layer, the heating assembly includes heating box, heating box lower extreme with outer sheath outside fixed connection, the utility model discloses through multilayer composite structure design has realized high -efficient antifreezing and long -lasting durable, and wherein heating assembly passes through temperature sensor real -time monitoring pipe temperature and by controller adjusts integrated heating layer power, realizes temperature control and energy -conserving operation.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to an electric heating drainage cylinder for railways. Background Technology

[0002] In railway operations, systems such as bridge deck drainage and tunnel side ditch drainage are crucial; however, in the harsh winter, the water in these drainage pipes is very prone to freezing. Once frozen, the drainage system will completely fail, leading to ice accumulation, which may not only erode railway infrastructure but also pose a serious threat to traffic safety.

[0003] Currently, the common antifreeze measure is to wrap the pipe wall with heat tracing tape. However, this installation method has many drawbacks: First, the heat tracing tape does not fit tightly against the pipe wall, resulting in low heat transfer efficiency and high energy consumption. Second, the exposed heat tracing tape is easily damaged by weathering and mechanical impact, resulting in a short service life and frequent maintenance. Finally, its appearance is messy and lacks integrity and protection. Therefore, there is an urgent need for a special electric heating drainage device with high structural integration, uniform heating, safety and reliability, and easy installation and maintenance.

[0004] Based on this, an electric heating drainage cylinder for railways is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this utility model is to provide an electric heating drainage cylinder for railways to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A railway electric heating drainage cylinder includes a main pipe, and a heating component is provided on one side of the main pipe; The main pipe is equipped with connecting components at both ends; The main pipe is provided with an outer protective layer, an inner heat insulation layer, an inner insulation layer, an integrated heating layer, and an inner anti-corrosion layer. The heating assembly includes a heating box, the lower end of which is fixedly connected to the outer side of the outer protective layer. Inside the heating box, a controller and a power controller are arranged in sequence. A temperature sensor is fixedly connected to the lower end of the controller, and the lower end of the temperature sensor penetrates through the inner anti-corrosion layer. The output end of the power controller penetrates through the inner anti-corrosion layer and is fixedly connected to the integrated heating layer. The controller is electrically connected to both the temperature sensor and the power controller.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions: In one alternative: the integrated heating layer includes an insulating thermally conductive substrate, a metal electrothermal film circuit etched or deposited on the insulating thermally conductive substrate, and an insulating encapsulation layer that completely encapsulates the electrothermal film circuit.

[0008] In one alternative: the thermal insulation layer is composed of flexible rubber and plastic insulation material and is covered with a layer of waterproof aluminum foil.

[0009] In one alternative: the inner anti-corrosion layer is made of stainless steel.

[0010] In one alternative: the outer protective layer is made of galvanized carbon steel.

[0011] In one alternative, the insulating layer is made of silicone rubber.

[0012] In one alternative embodiment: the connecting assembly includes a main pipe connecting end, one end of which is fixedly connected to an adjacent main pipe end, and an outer sheath fixedly connected to the outer side of the other end of the main pipe connecting end. A connector is slidably disposed on the inner side of the outer sheath, and a water pipe connecting end is fixedly connected to the end of the connector away from the outer sheath and is fixedly connected to a corresponding water pipe through the water pipe connecting end. A plurality of sealing strips are disposed on the inner side of the outer sheath, one end of which is fixedly connected to one side of the main pipe connecting end. A plurality of sealing grooves are correspondingly opened on the side of the connector adjacent to the main pipe connecting end and are slidably connected to the sealing strips. Silicone sealing strips are disposed on the outer side of the sealing strips and the inner side of the outer sheath.

[0013] In one alternative: a fastening head is fixedly connected to the upper adjacent side of the main pipe connection end and the water pipe connection end, and they are fixed to each other by fastening bolts.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model achieves high-efficiency antifreeze and long-term durability through a multi-layer composite structure design. The heating component monitors the temperature inside the pipe in real time through a temperature sensor, and the controller adjusts the power of the integrated heating layer to achieve temperature control and energy-saving operation. The connecting component achieves initial sealing through the insertion and cooperation of the sealing strip and the sealing groove, the outer sheath provides secondary protection, and the fastening bolts tighten the fastening heads to form a triple sealing structure, ensuring that the connection is leak-proof and can compensate for installation errors. The overall structure integrates heating, heat preservation, and protection functions into one, solving the pain points of traditional heat tracing cables such as cumbersome installation, low thermal efficiency, and easy damage. It is suitable for cold and humid environments such as railway bridges and tunnels, effectively improving the reliability of drainage systems and reducing maintenance costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2This is a schematic diagram showing the overall structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the connecting component structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the heating component structure of this utility model.

[0019] Figure label annotations: 1. Main pipe; 2. Main pipe connection end; 3. Water pipe connection end; 4. Fastening head; 5. Fastening bolt; 6. Outer sheath; 7. Sealing strip; 8. Sealing groove; 9. Connector; 10. Thermal insulation layer; 11. Insulation layer; 12. Integrated heating layer; 13. Inner anti-corrosion layer; 14. Heating box; 15. Controller; 16. Power controller; 17. Temperature sensor; 18. Outer sheath. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] In one embodiment, such as Figures 1-4 As shown, a railway electric heating drainage cylinder includes a main pipe 1, and a heating component is provided on one side of the main pipe 1; The main pipe 1 is provided with connecting components at both ends; The main pipe 1 is provided with an outer protective layer 18 on the outside, an insulation protective layer 10 is provided on the inside of the outer protective layer 18, an insulation layer 11 is provided on the inside of the insulation protective layer 10, an integrated heating layer 12 is provided on the inside of the insulation layer 11, and an inner anti-corrosion layer 13 is provided on the inside of the integrated heating layer 12. The heating assembly includes a heating box 14. The lower end of the heating box 14 is fixedly connected to the outside of the outer protective layer 18. A controller 15 and a power controller 16 are arranged sequentially inside the heating box 14. A temperature sensor 17 is fixedly connected to the lower end of the controller 15. The lower end of the temperature sensor 17 is inserted through the inner side of the inner anti-corrosion layer 13. The output end of the power controller 16 is inserted through the inner anti-corrosion layer 13 and fixedly connected to the integrated heating layer 12. The controller 15 is electrically connected to the temperature sensor 17 and the power controller 16 respectively. In this embodiment, when the drainage temperature decreases, the temperature sensor 17 monitors the internal temperature of the main pipe 1 and transmits the signal to the controller 15. The controller 15 automatically starts and stops the integrated heating layer 12 according to the set temperature. The heat generated by the integrated heating layer 12 is transferred to the water flow through the inner anti-corrosion layer 13. The heating efficiency is adjusted by the power controller 16. The heat insulation layer 10 reduces heat loss, and the outer protective layer 18 provides mechanical protection, achieving efficient antifreeze.

[0022] In one embodiment, such as Figure 4As shown, the integrated heating layer 12 includes an insulating thermally conductive substrate, a metal electrothermal film circuit etched or laid on the insulating thermally conductive substrate, and an insulating encapsulation layer that completely encapsulates the electrothermal film circuit. When the integrated heating layer 12 is working, current passes through the metal electrothermal film circuit to generate heat energy. The insulating thermally conductive substrate evenly transfers the heat to the inner anti-corrosion layer 13. The insulating encapsulation layer prevents short circuits and isolates moisture, ensuring safe and efficient heating.

[0023] In one embodiment, such as Figure 4 As shown, the thermal insulation protective layer 10 is composed of flexible rubber and plastic thermal insulation material and covered with a layer of waterproof aluminum foil. The thermal insulation protective layer 10 uses the flexible rubber and plastic thermal insulation material to block heat from being conducted outward, and the waterproof aluminum foil on the surface reflects heat radiation and prevents water vapor from entering. The dual function improves the thermal insulation efficiency.

[0024] In one embodiment, such as Figure 4 As shown, the inner anti-corrosion layer 13 is made of stainless steel. The inner anti-corrosion layer 13 is in direct contact with the water flow. The stainless steel material resists corrosive components in the water, avoids rust and water pollution, and extends the service life of the main pipe 1.

[0025] In one embodiment, such as Figure 4 As shown, the outer protective layer 18 is made of galvanized carbon steel. As the outermost layer of protection, the galvanized carbon steel material has high strength and excellent weather resistance, protecting the internal structure from mechanical impact and environmental corrosion.

[0026] In one embodiment, such as Figure 4 As shown, the insulating layer 11 is made of silicone rubber. The insulating layer 11 uses silicone rubber to fill the gaps between the structural layers. Its elastic properties buffer the stress of thermal expansion and contraction, while blocking the risk of leakage of electrical components.

[0027] In one embodiment, such as Figure 3 As shown, the connecting assembly includes a main pipe connecting end 2, one end of which is fixedly connected to one end of an adjacent main pipe 1. An outer sheath 6 is fixedly connected to the outer side of the other end of the main pipe connecting end 2. A connector 9 is slidably disposed on the inner side of the outer sheath 6. A water pipe connecting end 3 is fixedly connected to the end of the connector 9 away from the outer sheath 6 and is fixedly connected to a corresponding water pipe through the water pipe connecting end 3. Several sealing strips 7 are disposed on the inner side of the outer sheath 6. One end of the sealing strip 7 is fixedly connected to one side of the main pipe connecting end 2. Several sealing grooves 8 are correspondingly opened on the side of the connector 9 adjacent to the main pipe connecting end 2 and are slidably connected to the sealing strips 7. Silicone sealing strips are disposed on the outer side of the sealing strips 7 and the inner side of the outer sheath 6. During installation, the connector 9 slides inward along the outer sheath 6, the sealing strips 7 are embedded in the sealing grooves 8 to form a first seal, and the silicone sealing strips are compressed and filled to form a second seal, achieving bidirectional waterproofing at the connection.

[0028] In one embodiment, such as Figure 3 As shown, a fastening head 4 is fixedly connected to each of the upper adjacent sides of the main pipe connection end 2 and the water pipe connection end 3, and they are fixed to each other by fastening bolts 5. When the fastening bolts 5 are tightened, the fastening heads 4 on both sides are pulled together, so that the main pipe connection end 2 and the water pipe connection end 3 press the sealing strip 7, further strengthening the sealing effect and locking the connection structure.

[0029] The above embodiments disclose an electric heating drainage cylinder for railways. When the electric heating drainage cylinder is working, the temperature sensor 17 monitors the temperature of the inner anti-corrosion layer 13 in real time and feeds it back to the controller 15. When the temperature is lower than the set value, the controller 15 activates the integrated heating layer 12. Its metal electric heating film circuit conducts heat evenly to the inner anti-corrosion layer 13 through the insulating thermally conductive substrate to heat the water flow. The heat preservation and protection layer 10 effectively suppresses heat loss, the insulation layer 11 provides electrical insulation and stress buffering, and the outer protective layer 18 withstands external mechanical impact. The connecting components achieve initial sealing through the insertion and cooperation of the sealing strip 7 and the sealing groove 8. The outer protective sleeve 6 provides axial positioning. Finally, the fastening bolt 5 presses the fastening head 4 to complete the triple sealing connection, ensuring that the entire system can continuously and smoothly drain water in cold environments.

[0030] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A railway electric heating drainage cylinder, comprising a main pipe (1), wherein a heating component is provided on one side of the main pipe (1); The main tube (1) is provided with connecting components at both ends; Its features are, The main tube (1) is provided with an outer protective layer (18) on the outside, an insulation protective layer (10) is provided on the inside of the outer protective layer (18), an insulation layer (11) is provided on the inside of the insulation protective layer (10), an integrated heating layer (12) is provided on the inside of the insulation layer (11), and an inner anti-corrosion layer (13) is provided on the inside of the integrated heating layer (12). The heating component includes a heating box (14). The lower end of the heating box (14) is fixedly connected to the outside of the outer protective layer (18). A controller (15) and a power controller (16) are arranged sequentially inside the heating box (14). A temperature sensor (17) is fixedly connected to the lower end of the controller (15). The lower end of the temperature sensor (17) is inserted through the inner side of the inner anti-corrosion layer (13). The output end of the power controller (16) is inserted through the inner anti-corrosion layer (13) and fixedly connected to the integrated heating layer (12). The controller (15) is electrically connected to the temperature sensor (17) and the power controller (16) respectively.

2. The electric heating drainage cylinder for railways according to claim 1, characterized in that, The integrated heating layer (12) includes an insulating thermally conductive substrate, a metal electrothermal film circuit etched or laid on the insulating thermally conductive substrate, and an insulating encapsulation layer that completely encapsulates the electrothermal film circuit.

3. The electric heating drainage cylinder for railways according to claim 1, characterized in that, The thermal insulation protective layer (10) is composed of flexible rubber and plastic thermal insulation material and is covered with a layer of waterproof aluminum foil.

4. The electric heating drainage cylinder for railways according to claim 1, characterized in that, The inner anti-corrosion layer (13) is made of stainless steel.

5. A railway electric heating drainage cylinder according to claim 1, characterized in that, The outer protective layer (18) is made of galvanized carbon steel.

6. The electric heating drainage cylinder for railways according to claim 1, characterized in that, The insulating layer (11) is made of silicone rubber.

7. A railway electric heating drainage cylinder according to claim 1, characterized in that, The connecting assembly includes a main pipe connecting end (2), one end of which is fixedly connected to one end of an adjacent main pipe (1), and an outer sheath (6) is fixedly connected to the outer side of the other end of the main pipe connecting end (2). A connector (9) is slidably provided on the inner side of the outer sheath (6). A water pipe connecting end (3) is fixedly connected to the end of the connector (9) away from the outer sheath (6) and is fixedly connected to the corresponding water pipe through the water pipe connecting end (3). Several sealing strips (7) are provided on the inner side of the outer sheath (6). One end of the sealing strip (7) is fixedly connected to one side of the main pipe connecting end (2). Several sealing grooves (8) are correspondingly opened on the side of the connector (9) adjacent to the main pipe connecting end (2) and are slidably connected to the sealing strips (7). Silicone sealing strips are provided on the outer side of the sealing strips (7) and the inner side of the outer sheath (6).

8. A railway electric heating drainage cylinder according to claim 7, characterized in that, The main pipe connection end (2) and the water pipe connection end (3) are both fixedly connected to a fastening head (4) on the adjacent side of the upper end and are fixed to each other by fastening bolts (5).

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