Electric heating railway viscous oil tank truck

Abstract

The invention discloses an electric heating railway viscous oil tank truck which comprises an underframe, a tank body, an oil unloading device, a bogie, a braking device, a coupler buffering device and an electric heating device. A tank body is arranged at the top of the underframe, and an oil unloading device is arranged at the bottom of the underframe and penetrates through the underframe to be communicated with the tank body; a brake device is mounted at the bottom of the chassis, and coupler buffer devices are arranged at two ends; bogies are arranged on the front and rear sides of the bottom of the chassis; an electric heating device is arranged in the bottom of the tank body; and the electric heating device is used for heating the viscous liquid in the tank body in an electric heating manner. The electric heating device is installed to heat viscous oil loaded and transported by the tank car, thermal response is fast, heat is concentrated, control is easy, energy consumption is low, and safety performance is high.

Description

Technical Field

[0001] The invention belongs to the technical field of transporting viscous oil tank cars, and in particular relates to an electrically heated railway viscous oil tank car. Background Art

[0002] In the modern energy transportation system, rail, with its high capacity, low cost, and high safety, has become a core carrier for the long-distance transport of viscous oil-based petrochemical products. Tank transport is a relatively safe method of transporting liquids. Viscous oil tankers primarily carry crude oil, heavy diesel, lubricants, and other highly viscous petrochemical products. Due to their high viscosity (crude oil viscosity is typically 50-500 mPa·s at 20°C), these cargoes are susceptible to a sharp decrease in fluidity during transportation due to temperature drops, and may even solidify and clog the unloading port. Therefore, the heating system of viscous oil tankers is a critical component to ensure transportation efficiency.

[0003] Currently, steam heating systems dominate the heating technology landscape for railway viscous oil tank cars. These systems are primarily categorized into two types: external heating jackets and internal heating pipes. External heating jackets wrap around the exterior of the tank, indirectly heating the tank walls through a network of steam pipes. Their relatively simple structure and low initial installation cost make them widely used on domestically produced G70 viscous oil tank cars. Internal heating pipes, with serpentine or calandria-shaped steam pipes laid within the tank, directly heat the oil through heat released by condensation. A typical example is the internal heating system on the Russian TE10 tank car. The core principle of both technologies is to utilize saturated steam generated by a boiler (typically at a pressure of 0.6-1.0 MPa and a temperature of 160-184°C) as a heat medium, heating the oil through heat conduction through the metal walls. However, extensive operational data indicates that the steam heating method currently used in viscous oil tank cars has several significant drawbacks. First, the heating time is long. Due to the limited heat conduction efficiency, the viscous oil heats up slowly and often takes a long time to reach a temperature suitable for oil unloading. This directly leads to a significant reduction in the turnover efficiency of the tank truck, affecting the overall timeliness of the transportation operation; secondly, the energy utilization rate is low. There is significant heat loss in the transportation and heating links of steam, and the problems of pipeline heat dissipation and tank heat loss are prominent. It is difficult to improve the energy utilization rate, which in turn pushes up the transportation cost; thirdly, the operation and maintenance are difficult. The system requires manual and continuous valve adjustment and other operations, which is labor-intensive; in addition, the equipment installation process is complex and the maintenance is difficult, which not only increases the maintenance cost, but also often causes transportation interruptions due to maintenance; at the same time, this heating method is not conducive to automatic control. Traditional steam heating lacks a precise temperature control system and fault warning mechanism. It is difficult to dynamically adjust the heating power according to changes in oil temperature. The temperature control accuracy cannot meet the requirements of modern transportation, nor can it adapt to the development trend of intelligent management.

[0004] In summary, how to effectively improve the steam heating method used in existing viscous oil tank cars to address the problems of low thermal efficiency, slow heating speed, and high energy consumption, thereby improving transportation economics, has become a technical challenge that technical personnel in this field urgently need to solve. This not only concerns cost control for transportation companies but also is a key technical link in promoting the development of green logistics. Summary of the Invention

[0005] The purpose of the present invention is to address the above-mentioned shortcomings and provide an electrically heated railway viscous oil tank car. By installing an electric heating device, the viscous oil transported in the tank car is heated. The device has a fast thermal response, concentrated heat, is easy to control, has low energy consumption and high safety performance. To achieve the above-mentioned objectives, the present invention provides the following technical solutions: An electrically heated railway viscous oil tank car comprises an underframe, a tank body, an oil unloading device, a bogie, a braking device, a coupler buffer device and an electric heating device; the tank body is provided on the top of the underframe, and the oil unloading device is provided at the bottom, and the oil unloading device passes through the underframe and is connected to the tank body; the braking device is installed on the underframe, and coupler buffer devices are provided at both ends; bogies are provided on the front and rear sides of the bottom of the underframe; the bottom of the tank body is provided with an electric heating device; the electric heating device heats the viscous liquid in the tank body by electric heating.

[0006] Furthermore, both ends of the bottom of the tank are provided with electric heating devices; the electric heating devices include a plurality of electric heaters; and the electric heaters are arranged horizontally along the inner wall of the tank.

[0007] Furthermore, the electric heater includes a sleeve and a heating element; the sleeve is fixed to the inner wall of the tank body through a support seat; one end of the sleeve passes through the tank body and is connected to an external power connection box located outside the tank body; a heating element is provided in the sleeve.

[0008] Furthermore, a temperature sensor is provided in the sleeve; the temperature sensor is arranged on one side of the heating element to detect the temperature of the heating element.

[0009] Furthermore, the heating element is a resistance heating element or an induction heating coil.

[0010] Furthermore, a protective cover is provided on the outside of the external power connection box; the protective cover is fixed on the outer wall of the tank body.

[0011] Furthermore, the protective cover includes a cover body and a cover seat; the cover body is fixed to the outer wall of the tank body through the cover seat and wrapped around the outside of the external power connection box; the cover body is provided with a socket hole and a water leakage hole.

[0012] Furthermore, the electric heating device also includes an external control cabinet placed at the oil unloading point; the external control cabinet is provided with several groups of power cables and temperature control wires for connecting to the external power connection box of the electric heater to supply power to it; the external control cabinet is provided with a control system; the control system is used to control the electric heater to heat the viscous liquid in the tank body; the external control cabinet is provided with a meter, operation buttons, control switches and signal lights, etc.

[0013] The beneficial effects of the present invention are: The present invention discloses an electrically heated railway viscous oil tank car, comprising a chassis, a tank body, an oil unloading device, a bogie, a braking device, a coupler buffer device, and an electric heating device. The tank body is mounted on the top of the chassis, and the oil unloading device is mounted on the bottom, the oil unloading device passing through the chassis and communicating with the tank body. The chassis is mounted with a braking device and coupler buffer devices at both ends. Bogies are mounted on the front and rear sides of the bottom of the chassis. An electric heating device is mounted on the bottom of the tank body. The electric heating device electrically heats the viscous liquid within the tank body. The present invention heats the viscous oil transported by the tank car by installing an electric heating device, resulting in a fast thermal response, concentrated heat, easy control, low energy consumption, and high safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the three-dimensional structure of the electrically heated viscous oil tanker in the present invention; Figure 2 Schematic diagram of the structure of the electric heating device in the present invention; Figure 3 It is a schematic structural diagram of the protective cover in the present invention; In the accompanying drawings: 1-underframe, 2-tank body, 3-oil unloading device, 4-bogie, 5-braking device, 6-coupler buffer device, 7-electric heating device, 8-electric heater, 81-sleeve, 82-support seat, 9-protective cover, 91-cover body, 92-cover seat. DETAILED DESCRIPTION

[0015] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0016] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of the stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0017] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0018] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to encompass different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "beneath" another element or feature would subsequently be oriented "above" or "above" the other element or feature. Thus, the example term "below" may encompass both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein should be interpreted accordingly.

[0019] Example 1 See attached Figures 1-3 An electrically heated railway oil tank car, such as Figure 1As shown, the vehicle comprises a chassis 1, a tank 2, an oil unloading device 3, a bogie 4, a brake device 5, a coupler buffer device 6, and an electric heating device 7. The chassis 1 is a rectangular frame structure formed by welding together a center beam, side beams, bolster beams, and end beams. It bears the entire load of the tank 2, cargo, and vehicle during operation. The tank 2 is located on the top of the chassis 1, and the oil unloading device 3 is located at the bottom. The oil unloading device 3 passes through the chassis 1 and communicates with the tank 2. The tank 2 is fixed to the chassis 1 via a saddle plate and riveted upper and lower saddles. The tank 2 is used to seal and load viscous oil to prevent leakage or volatilization during transportation. The oil unloading device 3 is used to release the viscous oil from the tank 2 and complete the transfer from the vehicle to the oil storage facility. A brake device 5 is installed on the chassis 1, with coupler buffer devices 6 at both ends. The brake device 5 is used to slow or stop the vehicle to ensure transportation safety. The coupler buffer devices 6 are used to connect multiple vehicles to form a train formation and absorb longitudinal impact forces during train starting, braking, or shunting, reducing rigid collisions between vehicles. Bogies 4 are installed on the front and rear sides of the bottom of the chassis 1. They support the vehicle's weight and transmit traction and braking forces. An electric heating device 7 is installed at the bottom of the tank 2 to electrically heat the viscous liquid within the tank 2, raising its temperature and reducing its viscosity, maintaining fluidity and preventing solidification and clogging of the pipeline during unloading. The present invention utilizes the electric heating device 7 to heat the viscous liquid being transported by the tank truck, resulting in a fast thermal response, concentrated heat, easy control, low energy consumption, and high safety performance.

[0020] Specifically, electric heating devices 7 are provided on both the left and right sides of the bottom of the tank body 2. Figure 2 As shown, the electric heating device 7 includes several electric heaters 8, each comprising a sleeve 81 and heating elements. The sleeve 81 is arranged horizontally along the inner wall of the tank body 2 and, as shown, can be arranged equidistantly along the circumference of the centerline of the tank body 2. A portion of the sleeve 81 is fixed to the inner wall of the tank body 2 via a support base 82. One end of the sleeve 81 passes through the end cap of the tank body 2, and the exit end is provided with a connection to an external power connection box located outside the tank body 2. The external power connection box is used to connect to a ground power supply for heating operation. The external power connection box is located outside the tank body 2 to facilitate daily maintenance and inspection. Multiple heating elements are arranged within the sleeve 81. The heating elements are either resistive heating elements or induction heating coils. The heating elements are connected to an internal power supply line and to an external power source via an external power connection box. The heat released by the heating elements is redistributed within the sleeve 81. After being evenly heated through the sleeve 81, the heat is then transferred to the viscous liquid in the tank body 2, ensuring the quality and performance of the viscous liquid. A temperature sensor is also provided in the sleeve 81 . The temperature sensor is arranged near the heating element to detect the temperature of the heating element so as to control the heating temperature.

[0021] Specifically, a protective cover 9 is provided on the outside of the external power connection box. The protective cover 9 includes a cover body 91 and a cover seat 92. The cover seat 92 is mounted on the outer wall of the tank 2, leaving a certain gap between the cover body 91 and the external power connection box. The cover body 91 is connected and fixed to the cover seat 92 by bolts, wrapping around the external power connection box to protect it. The cover body 91 is provided with a socket hole corresponding to the external power connection box. The bottom of the cover body 91 is also provided with a drainage hole to facilitate the leakage of rainwater and sand and dust.

[0022] Specifically, the electric heating device 7 also includes an external control cabinet installed at the oil unloading point. The control cabinet is equipped with several sets of power cables and temperature control wires of predetermined lengths. When the vehicle arrives at the oil unloading point, the power cables and temperature control wires in the control cabinet are connected to the electric heater's external power terminal box and energized, and the electric heater 8 heats the viscous liquid in the tank 2. The external control cabinet is equipped with a control system that controls the electric heater 8 to heat the viscous liquid in the tank 2. The control system includes a power module, a heater control digital display module, a temperature control module, and a leakage protection module. It automatically adjusts the heating of the electric heating device 7 according to the set temperature to prevent overheating from affecting the performance of the medium. It also automatically cuts off the power supply and issues an alarm in the event of excessive temperature, short circuit, or leakage, thus implementing automated monitoring and management to ensure the safe operation of the equipment, with high energy conservation, safety, and environmental benefits. The electrical components in the external control cabinet include meters, operating buttons, control switches, signal lights, etc.

[0023] All technical features in this embodiment can be freely combined according to actual needs. The above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention. The technology, shape, and structural parts not described in detail in the present invention are all well-known technologies.

[0024] The above embodiments are preferred implementation schemes of the present invention. In addition, other implementation schemes are also included. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. An electrically heated railway oil tank car, characterized by: The invention comprises a chassis (1), a tank body (2), an oil unloading device (3), a bogie (4), a braking device (5), a coupler buffer device (6) and an electric heating device (7); the tank body (2) is provided on the top of the chassis (1), and the oil unloading device (3) is provided on the bottom, and the oil unloading device (3) passes through the chassis (1) and is communicated with the tank body (2); the braking device (5) is installed on the bottom of the chassis (1), and the coupler buffer devices (6) are provided at both ends; the bogies (4) are provided on the front and rear sides of the bottom of the chassis (1); the electric heating device (7) is provided at the bottom of the tank body (2); the electric heating device (7) heats the viscous liquid in the tank body (2) by electric heating.

2. The electrically heated railway viscous oil tank car according to claim 1, characterized in that: Both ends of the bottom of the tank body (2) are provided with electric heating devices (7); the electric heating devices (7) include a plurality of electric heaters (8); and the electric heaters (8) are arranged horizontally along the inner wall of the tank body (2).

3. The electrically heated railway viscous oil tank car according to claim 2, characterized in that: The electric heater (8) comprises a sleeve (81) and a heating element; the sleeve (81) is fixed to the inner wall of the tank body (2) via a support base (82); one end of the sleeve (81) passes through the tank body (2) and is connected to an external power connection box located outside the tank body (2); and the heating element is provided in the sleeve (81).

4. The electrically heated railway viscous oil tank car according to claim 3, characterized in that: A temperature sensor is provided in the sleeve (81); the temperature sensor is provided on one side of the heating element and is used to detect the temperature of the heating element.

5. The electrically heated railway viscous oil tank car according to claim 4, characterized in that: The heating element is a resistance heating element or an induction heating coil.

6. The electrically heated railway viscous oil tank car according to claim 3, characterized in that: A protective cover (9) is provided on the outside of the external power connection box; the protective cover (9) is fixed on the outer wall of the tank body (2).

7. The electrically heated railway viscous oil tank car according to claim 6, characterized in that: The protective cover (9) comprises a cover body (91) and a cover seat (92); the cover body (91) is fixed to the outer wall of the tank body (2) via the cover seat (92) and wrapped around the outside of the external power connection box; the cover body (91) is provided with a socket hole and a water leakage hole.

8. The electrically heated railway viscous oil tank car according to claim 2, characterized in that: The electric heating device (7) further comprises an external control cabinet placed at the oil unloading point; the external control cabinet is provided with a plurality of power cables and temperature control wires for connecting to an external power supply junction box of the electric heater to supply power thereto; the external control cabinet is provided with a control system; the control system is used to control the electric heater (8) to heat the viscous liquid in the tank body (2); the external control cabinet is also provided with a meter, an operating button, a control switch, a signal light, etc.

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