Tank car heating device

Abstract

The utility model discloses a tank car heating device, and relates to the technical field of heating in tanks. The device comprises a fixed plate, a sealed mounting box is arranged on the inner side of the fixed plate, a motor is fixed in the mounting box, and a driving gear is mounted on a motor shaft; at least one supporting pipe is fixed on a fixing plate in the mounting box, and a driven gear meshed with the driving gear is mounted at the inner end of the supporting pipe through a bearing; a heating pipe with the inner end closed is fixed in an inner hole of the driven gear, a circulating pipe is arranged in the heating pipe, the inlet end of the circulating pipe is connected with a liquid outlet of a liquid pump after the circulating pipe penetrates out of the mounting plate, a liquid inlet of the liquid pump is located in a heating medium box with a heating mechanism, and the outlet end of the circulating pipe is directly communicated with the interior of the heating medium box. According to the heating tank, heated water can be pumped through the liquid pump and circularly flows in the heating pipe through the circulating pipe to heat liquid in the tank, the safety during heating is guaranteed, and the water in the circulating pipe can be prevented from leaking into the tank body through the design that the circulating pipe and the liquid in the tank are isolated through the heating pipe.

Description

Technical Field

[0001] This utility model relates to a tank truck heating device, specifically in the field of tank heating technology. Background Technology

[0002] Tank trucks are specialized vehicles used to transport goods such as liquids or liquefied gases. In cold weather, tank trucks transporting high-density liquid media require heating to maintain the liquid's fluidity. Currently, heating methods for tank trucks generally use electric heating, where heating rods are inserted into the tank. However, if the heating rods short-circuit, it can pose a safety hazard to the heated liquid, compromising operational safety. Furthermore, the fixed position of the heating rods during heating results in a small heating area and uneven heating of the liquid inside the tank. Summary of the Invention

[0003] The purpose of this invention is to design a tank truck heating device that can avoid safety hazards to the liquid inside the tank during the heating process.

[0004] This utility model includes a fixed plate, with a sealed mounting box inside the fixed plate. A motor is fixed inside the mounting box, and a drive gear is mounted on the motor shaft. At least one support tube is fixed on the fixed plate inside the mounting box. A driven gear that meshes with the drive gear is mounted on the inner end of the support tube via a bearing. A heating tube with a closed inner end is fixed in the inner hole of the driven gear. A circulation tube is installed inside the heating tube. After the circulation tube passes through the mounting plate, its inlet end is connected to the outlet of a liquid pump. The inlet of the liquid pump is located in a heat medium tank with a heating mechanism. The outlet end of the circulation tube is directly connected to the heat medium tank. Stirring blades are installed on the outer wall of the heating tube outside the mounting box. The heating tube is connected to the mounting box plate through a dynamic sealing structure.

[0005] Furthermore, the mounting box is equipped with at least two heating tubes, each of which is equipped with a circulation tube. The driven gears on each heating tube mesh with the driving gears, and the stirring blades on the outer wall of each heating tube face the same direction.

[0006] Furthermore, the mounting box is equipped with at least two heating tubes, each of which is equipped with a circulation tube. The driven gear on one of the heating tubes meshes with the driving gear, and the driven gears on the other heating tubes mesh with the driven gear of the previous stage in sequence. The stirring blades on the outer walls of adjacent heating tubes face opposite directions.

[0007] Furthermore, the periphery of the fixing plate protrudes from the mounting box, and a flexible sealing layer is provided on the inner wall of the protruding part, and mounting holes are provided on the periphery of the protrusion.

[0008] Furthermore, a distributor is provided between the liquid pump and the circulation pipe, and the outlet end of the liquid pump is connected to the inlet end of each circulation pipe through the distributor.

[0009] This invention can heat the liquid in the tank by drawing heated water through a liquid pump and circulating it in the heating pipe through a circulation pipe, ensuring safety during heating. Furthermore, the design of isolating the circulation pipe from the liquid in the tank through the heating pipe can prevent water in the circulation pipe from leaking into the tank.

[0010] In this invention, the heating pipe is rotatably connected to the mounting box and can be rotated by a motor. The stirring blades installed on the outer periphery of the heating pipe can stir the liquid in the tank during the heating process, thereby improving the heating range. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0012] Figure 2 for Figure 1 Front sectional view of the mounting box section;

[0013] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0014] Figure 4 for Figure 2 Left view of the middle gear section;

[0015] Figure 5 for Figure 1 Schematic diagram of the structure of the heating pipe;

[0016] Figure 6 for Figure 1 Schematic diagram of the structure of the intermediate heat medium box;

[0017] Figure 7 This is a diagram showing the usage state of this utility model;

[0018] The components are: 1. Fixed plate, 2. Mounting box, 3. Motor, 4. Drive gear, 5. Support pipe, 6. Bearing, 7. Driven gear, 8. Heating pipe, 9. Circulation pipe, 10. Mounting plate, 11. Distributor, 12. Liquid pump, 13. Heat medium tank, 14. Stirring blade, 15. Flexible sealing layer, 16. Mounting hole, 17. Bolt, 18. Dynamic seal, 19. Pumping pipe, 20. Heating pipe, 21. Temperature sensor, 22. Tank body. Detailed Implementation

[0019] In this embodiment, the end closest to the interior of the tank 23 is defined as the inner side, and vice versa. Figure 2 Define the up, down, front, and back directions in this embodiment.

[0020] As shown in the figure, this embodiment includes a fixed plate 1, with a mounting box 2 disposed inside the fixed plate 1. The mounting box 2 is welded and fixed to the inner end of the fixed plate 1, and its inner cavity is sealed. A motor 3 is disposed inside the mounting box 2. A drive gear 4 is mounted on the inner side of the motor 3's rotating shaft. A set of support tubes 5 is disposed above the motor 3. In this embodiment, three support tubes 5 are disposed, all of which are bolted to the inner side of the fixed plate 1. A bearing 6 is disposed at the inner end of each support tube 5 and is fixedly connected to the outer ring of the bearing 6. A driven gear 7 is disposed inside each bearing 6. The outer end of the driven gear 7 has a stepped structure and extends into the inner ring of the bearing 6, where it is fixedly connected. The driven gears 7 mesh with each other, with the foremost driven gear 7 meshing with the drive gear 4. In use, starting the motor 3 can control the rotation of each driven gear 7. Each driven gear 7 has a heating pipe 8 inside. The inner end of each heating pipe 8 is bent and closed, extending inward through the mounting box 2, and the outer end is welded to the driven gear 7, allowing it to rotate with the driven gear 7. A dynamic seal 18 is provided at the connection between the heating pipe 8 and the mounting box 2 to prevent liquid from seeping into the mounting box 2 when the heating pipe 8 rotates. The dynamic seal 18 adopts a rotary dynamic seal structure, which is existing technology and will not be described in detail here. Each heating pipe 8 has a circulation pipe 9 inside its cavity for transporting heated water or other heat medium. A mounting plate 10 is located in the middle of the fixed plate 1, and each circulation pipe 9 extends outward after passing through the mounting plate 10. During installation, each circulation pipe 9 is passed through the mounting plate 10, and then the mounting plate 10 is fixedly installed on the fixed plate 1. The separate design of the fixed plate 1 and the mounting plate 10 facilitates the installation of the circulation pipe 9.

[0021] In this embodiment, the power cord of the motor 3 is led out from the fixing plate 1 to the front side.

[0022] A heat transfer medium tank 13 is installed on the outer side of the fixed plate 1. A heating mechanism, including a heating tube 20, is installed inside the heat transfer medium tank 13 to heat the water in the heat transfer medium tank 13. A temperature sensor 21 is installed on the bottom plate of the inner cavity of the heat transfer medium tank 13 to monitor the temperature in the heat transfer medium tank 13. A liquid pump 12 is installed at the upper end of the heat transfer medium tank 13. A water suction pipe 19 is installed at the inlet of the liquid pump 12. The water suction pipe 19 passes downward through the heat transfer medium tank 13 and extends to the bottom plate of the inner cavity of the heat transfer medium tank 13 to facilitate the extraction of water from the heat transfer medium tank 13. A distributor 11 is installed above the liquid pump 12. The lower end of the distributor 11 is connected to the outlet end of the liquid pump 12, and its upper end is connected to the inlet of each circulation pipe 9. After the liquid pump 12 is started, water in the heat transfer medium tank 13 can be drawn into each circulation pipe 9 through the distributor 11. The outlet end of each circulation pipe 9 is connected to the inner cavity of the heat medium tank 13 through the liquid separator 11, which can discharge the water pumped in by the liquid pump 12 into the heat medium tank 13 to achieve the purpose of recycling.

[0023] In this embodiment, the periphery of the fixing plate 1 protrudes from the sealing box 2, and a flexible sealing layer 15 is provided on the inner side of its periphery. When the fixing plate 1 is installed on the tank body 22, leakage of liquid inside the tank can be prevented. The protruding periphery of the fixing plate 1 is provided with mounting holes 16, and matching bolts 17 are installed in the mounting holes 16 for connecting the fixing plate 1 and the tank body 22.

[0024] Each heating pipe 8 has a stirring blade 14 on its outer wall. The stirring blade 14 rotates with the heating pipe 8 to stir the liquid in the tank, causing the liquid to flow and providing a heating range. In this embodiment, since the driven gears 7 mesh with each other and the adjacent heating pipes 8 rotate in opposite directions, the stirring blades 14 on the outer walls of adjacent heating pipes 8 face opposite directions, improving the stirring effect on the liquid in the tank. If each driven gear 7 is meshed with the driving wheel 4, the orientation of the stirring blades 14 needs to be adjusted according to the rotation of the heating pipes 8.

[0025] In this embodiment, a protective cover or other structure can be installed on the outside of the fixing plate 1 to protect the pipelines on the outside of the fixing plate 1.

[0026] In this embodiment, the heating pipe 8 and the installation box 2 are first installed into the tank 22. The bolts 17 are tightened to fix the fixing plate 1 to the tank 22. After installation, the liquid to be heated is put into the tank 22. Then, the heating pipe 20 is started to heat the water in the heat medium tank 13. After the temperature sensor 21 determines that the water in the heat medium tank 13 has reached a suitable temperature, the liquid pump 12 is started to pump the water into the circulation pipe 9 to heat the liquid in the tank. During the heating process, the motor 3 is started. The meshing of the drive gear 4 and the driven gear 7 causes each heating pipe 8 to rotate. The stirring blades 14 stir the liquid in the tank and continuously heat the liquid in the tank.

Claims

1. A tank truck heating device, characterized in that: It includes a fixed plate, with a sealed mounting box inside the fixed plate. A motor is fixed inside the mounting box, and a drive gear is mounted on the motor shaft. At least one support tube is fixed on the fixed plate inside the mounting box. The inner end of the support tube is fitted with a driven gear that meshes with the drive gear through a bearing. A heating tube with a closed inner end is fixed inside the driven gear. A circulation tube is installed inside the heating tube. After the circulation tube passes through the mounting plate, its inlet end is connected to the outlet of the liquid pump. The inlet of the liquid pump is located in a heat medium tank with a heating mechanism. The outlet end of the circulation tube is directly connected to the heat medium tank. Stirring blades are installed on the outer wall of the heating tube outside the mounting box. The heating tube is connected to the mounting box plate through a dynamic sealing structure.

2. The tank truck heating device according to claim 1, characterized in that: The mounting box is equipped with at least two heating tubes, each of which has a circulation tube. The driven gears on each heating tube mesh with the driving gear, and the stirring blades on the outer wall of each heating tube face the same direction.

3. The tank truck heating device according to claim 1, characterized in that: The mounting box is equipped with at least two heating tubes, each of which has a circulation tube. The driven gear on one heating tube meshes with the driving gear, and the driven gears on the other heating tubes mesh with the driven gear of the previous stage in sequence. The stirring blades on the outer walls of adjacent heating tubes face opposite directions.

4. The tank truck heating device according to claim 1, 2, or 3, characterized in that: The fixing plate protrudes from the mounting box, and a flexible sealing layer is provided on the inner wall of the protruding part. Mounting holes are provided on the periphery of the protrusion.

5. The tank truck heating device according to claim 1, 2, or 3, characterized in that: A distributor is installed between the liquid pump and the circulation pipe, and the outlet end of the liquid pump is connected to the inlet end of each circulation pipe through the distributor.

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