Rapid heating system for heavy oil in low-temperature state

Abstract

The utility model discloses a rapid heating system for heavy oil in a low-temperature state, which comprises a suspended platform fixedly mounted on a supporting mechanism and provided with a guide rail; the heating assembly can be lifted, and the heating assembly can be movably hung below the guide rail; the guide rail allows the heating assembly to move to the position above a designated heating area of the tank body of the oil tank truck, and the heating assembly is used for heating heavy oil in the tank body of the oil tank truck. Steam generated by a waste heat boiler of a heavy oil power station is used as a heat source, no extra steam generator or electric heating is needed, energy consumption and operation cost are effectively reduced, the walking mechanism and the lifting mechanism are in linkage design, the heating pipe can be rapidly aligned to a heating opening of the tank car, oil temperature is monitored in real time, and manual adjustment is simplified.

Description

Technical Field

[0001] This utility model belongs to the field of heavy oil transportation technology, specifically relating to a rapid heating system for heavy oil at low temperatures. Background Technology

[0002] Heavy oil, as a high-viscosity liquid fuel, is prone to a significant decrease in fluidity at low temperatures. Especially in cold seasons, its viscosity increases sharply, leading to a substantial reduction in unloading efficiency and even causing difficulties in the unloading pump's adsorption and accelerated equipment wear. To ensure smooth unloading operations, traditional processes generally employ heating devices to preheat the oil tank trucks, thereby reducing the oil's viscosity and improving its fluidity.

[0003] Existing heavy oil heating technologies mostly rely on stationary steam heating systems, which generate steam from an external heat source and deliver it to the tank truck for heat exchange. However, this approach has significant limitations in practical applications: First, heating equipment typically requires a separate steam generator, leading to increased energy consumption and operating costs. Second, traditional heaters have a rigid structural layout, making them difficult to adapt to confined spaces, especially when tank truck parking locations are limited, resulting in insufficient deployment flexibility and ease of operation. Third, the steam pipeline connection methods are limited, lacking adaptability to complex operating conditions, and are prone to heat loss and maintenance difficulties. Furthermore, existing systems lack effective protection for critical components in harsh environments such as rain and snow, further impacting equipment reliability and lifespan.

[0004] In published patent applications, for example, invention patent application publication number CN118912385A discloses an invention entitled "Controllable Self-Circulating Heavy Oil Tanker Heating and Unloading System and Method." The system includes a heavy oil storage tank connected to a heavy oil unloading pump, which is connected to the heavy oil tanker via a heavy oil unloading valve assembly. A heat transfer oil pipeline is arranged at the bottom of the heavy oil storage tank and connected to a heat transfer oil heating system. The heavy oil storage tank is connected to a suction heat exchanger, which contains a circulating hot oil pipeline connected to the heat transfer oil heating system. The suction heat exchanger is connected to a low-pressure circulating pump, which is connected to the oil usage area and the controllable heavy oil circulation system via a pipeline. The controllable heavy oil circulation system is connected to the oil inlet of the heavy oil tanker and can control the on / off state and flow rate of the circulating heavy oil. A control valve is installed on the pipeline between the low-pressure circulating pump and the oil usage area. However, this system requires an independent heat transfer oil circulation pipeline, which is complex and poses a risk of leakage, and lacks flexibility, especially when deployed in confined spaces.

[0005] For example, utility model patent application publication number CN212644963U discloses a heavy oil heating device, including a heater. The heater has a heavy oil inlet and a heavy oil outlet. The heavy oil inlet is connected to and communicates with a heavy oil input pipe, and the heavy oil outlet is connected to and communicates with a heavy oil output pipe. The heater is used to heat the heavy oil flowing through it. Both the heavy oil input pipe and the heavy oil output pipe are provided with a first tee. The remaining interfaces of the two first tee are interconnected, and a first valve is provided at the connection between the two. A blocking component is provided at the connection between the heavy oil inlet and the heavy oil outlet and the corresponding first tee. By setting the first tee, the first valve, and the blocking component, when the heater is under maintenance, the blocking component can be closed and the first valve opened, allowing the heavy oil to bypass the heater and be discharged directly to downstream equipment. This does not affect the normal production of the equipment, and the maintenance is safe and does not generate pollutants such as waste oil and wastewater. However, the device requires drawing heavy oil into the heater to heat the heavy oil, but the fluidity of heavy oil decreases significantly at low temperatures, making it difficult to meet the dynamic heating requirements of heavy oil with different viscosities.

[0006] For example, utility model patent application publication number CN220221109U discloses a heavy oil heating energy-saving system, including a heavy oil sedimentation tank, a heavy oil storage tank, a heavy oil heater, a dual filter, a preheating pump, a temperature sensor, a transfer pump, a mixing device, connecting pipelines, valves, and a control system. By using an electric three-way ball valve to switch the valve position, the flow direction of the heavy oil is changed. By setting the temperature and time values, the working process is automatically switched to complete the preheating of each pipeline in the system, realize the transfer of room temperature heavy oil in the heavy oil storage tank, reduce the number of steam coils, and save energy.

[0007] The aforementioned invention or utility model patent applications all suffer from a lack of effective protection for critical components in harsh environments such as rain and snow, which affects the reliability and service life of the equipment's structural parts.

[0008] To address the aforementioned technical problems in the existing technology, this utility model provides a rapid heating system for heavy oil at low temperatures. Utility Model Content

[0009] This utility model provides a rapid heating system for heavy oil at low temperatures, the system comprising:

[0010] A suspended platform is fixedly installed on a support mechanism, and the suspended platform is equipped with guide rails.

[0011] A height-adjustable heating element, which is movably suspended below the guide rail;

[0012] The guide rail allows the heating assembly to move above a designated heating area on the tanker truck body, the heating assembly being used to heat the heavy oil inside the tanker truck body.

[0013] Furthermore, the support mechanism includes a support column and an inclined support rod. The suspended platform is fixed to the middle of the support column, and the inclined support rod is fixedly connected to the edge of the suspended platform and the ground. The inclined support rod is used to prevent the suspended platform from tipping over.

[0014] Furthermore, a rain shelter is provided on the suspended platform, and the rain shelter is fixed to the top of the support column.

[0015] Furthermore, the suspended platform is provided with a steam heating pipe storage tank, which is used to store the heating components.

[0016] Furthermore, a pedestrian walkway platform is provided on the suspended platform.

[0017] Furthermore, the suspended platform is equipped with a heating component control system, which is used to control the movement and lifting of the heating component.

[0018] Furthermore, the heating assembly includes a traveling mechanism, a lifting mechanism, and a steam heating pipe connected in sequence. The traveling mechanism is capable of moving on the guide rail, the lifting mechanism is used to raise and lower the steam heating pipe, the steam heating pipe is connected to a hose for conveying and outputting hot steam, and the steam heating pipe is used to heat the heavy oil in the tank of the tanker truck.

[0019] Furthermore, the walking mechanism is provided with a balance bar to prevent it from derailing.

[0020] Furthermore, the lifting mechanism includes a motor assembly fixed below the traveling mechanism and a movable pulley assembly suspended below the motor. The motor assembly is used to lift the movable pulley assembly, and the movable pulley assembly is detachably connected to the steam heating pipe.

[0021] Furthermore, the steam heating tube has a spiral structure, and the spacing of the spiral structure adopts a gradually changing layout.

[0022] Compared with the prior art, the advantages of this utility model are as follows:

[0023] 1. The heavy oil rapid heating system for low-temperature conditions described in this utility model utilizes steam generated by the waste heat boiler of the flue gas of a heavy oil power plant as a heat source, eliminating the need for an additional steam generator or reliance on high-energy-consuming electric heating devices, thus significantly reducing energy consumption and operating costs. Through the structural design of bypass valves and flexible hoses, flexible control of the steam network and efficient heat transfer are achieved, avoiding the complex piping and energy waste problems of traditional independent heat transfer oil circulation systems, which aligns with the concept of green circular economy.

[0024] 2. The rapid heating system for heavy oil in low-temperature conditions described in this utility model adopts a "T"-shaped steel structure support platform, integrating a walking mechanism, a lifting mechanism, and a heater storage tank to achieve a compact equipment layout. Compared with traditional fixed heating systems, this utility model can adapt to narrow spaces, allowing oil tankers to pass directly under the platform, and quickly positioning the steam heating pipes through the coordinated control of the walking mechanism and the lifting mechanism, significantly improving space utilization and deployment flexibility.

[0025] 3. The heavy oil rapid heating system for low temperature conditions described in this utility model adds a rainproof canopy to the top of the suspended platform to provide all-weather protection for key components such as the motor and valves of the traveling mechanism, effectively avoiding equipment short circuits or corrosion caused by rain and snow erosion, and extending service life. The steam pipes are connected with pressure-resistant and high-temperature resistant flexible hoses, which, compared with traditional rigid pipes, can adapt to the movement or vibration of tank trucks, reduce the risk of pipe breakage, and improve operational safety.

[0026] 4. The rapid heating system for heavy oil in low-temperature conditions described in this utility model achieves rapid alignment of the steam heating pipe with the tank truck heating port through the linkage design of the walking mechanism and the lifting mechanism. Combined with the real-time monitoring of oil temperature by a handheld temperature gun, it simplifies the manual adjustment steps. Compared with the complex operation process that relies on multi-stage valves and sealing components, it significantly reduces the probability of misoperation. At the same time, it supports rapid start-up and shutdown and closed-loop temperature control to ensure accurate and efficient heating process. Attached Figure Description

[0027] Figure 1 This is a side cross-sectional view of the heavy oil rapid heating system for low-temperature conditions described in this utility model.

[0028] Figure 2 This is a schematic diagram of the heating component of the rapid heating system for heavy oil in low-temperature conditions described in this utility model.

[0029] In the figure: 1 - heating component, 2 - support column, 3 - suspended platform, 4 - planar bracket, 5 - inclined support rod, 6 - vertical support rod, 7 - walking mechanism, 8 - lifting mechanism, 9 - steam heating pipe, 10 - guide rail. Detailed Implementation

[0030] To better understand the above-mentioned objectives, features, and advantages of the rapid heating system for heavy oil in low-temperature conditions described in this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0031] Example

[0032] like Figures 1 to 2 As shown, the rapid heating system for heavy oil in low-temperature conditions includes: a support mechanism, an equipment platform, a heating component 1, and a steam component.

[0033] In one specific embodiment, the support mechanism includes several vertically arranged support columns 2 and diagonal support rods 5. The support columns 2 are made of round steel pipe columns with a diameter of not less than 200mm, which are vertically buried in the foundation with a burial depth of not less than 2m. The concrete foundation is a cast-in-place rectangular foundation of 1.5m×1.5m×1m. Triangular ribs are set in the height range of 0.5m to 1m from the bottom of the column to reinforce the structure. The support columns 2 are equipped with a spatial force system by adding transverse stiffening ribs and diagonal reinforcing bars to improve the bending and shear bearing capacity of the column. The support columns 2 are equipped with ladders for workers to climb up and down. One end of the diagonal support rod 5 is anchored to the concrete foundation with anchor bolts, and the other end is fixedly connected to the edge of the suspended platform 3. An anti-seismic spherical hinge support is set at the connection. The diagonal support rod 5 is used to prevent the suspended platform 3 from tilting.

[0034] In one specific embodiment, the equipment platform is fixed to the support mechanism. The equipment platform includes a suspended platform 3 and a planar support 4. The suspended platform 3 is fixed to the middle of several support columns 2, and both ends are fixed to the firewalls on both sides. The planar support 4, which is made of welded steel pipes, is fixedly connected to the top of the support columns 2. The planar support 4 and the suspended platform 3 form a spatial truss system through vertical support rods 6 evenly distributed along the corresponding edges, which effectively improves the lateral stiffness and bending bearing capacity of the planar support 4, and optimizes the load transfer path between the suspended platform 3 and the planar support 4.

[0035] In one specific embodiment, the suspended platform 3 adopts a steel structure system, with an overall horizontal projection forming a "T" shape. The suspended platform 3 includes a pedestrian walkway platform, an equipment support platform, a steam heating pipe storage tank, a heating component lifting and lowering port, and a heating component control system. The horizontally extending section of the "T" shape serves as the equipment support platform, while the longitudinally extending section is the pedestrian walkway platform. The pedestrian walkway platform uses a stainless steel diamond-shaped perforated anti-slip panel as its load-bearing base. The effective passage width of the pedestrian walkway platform is 1200mm. Both sides are equipped with a guardrail system made of ordinary steel pipes, with a total guardrail height of 1100mm. A double-layer φ48mm horizontal bar structure system is used, with a 200mm high continuous bar at the bottom. The kick guards meet the dual requirements of personnel safety and equipment protection. The steam heating pipe storage tank integrates heavy oil collection function, and the tank is equipped with an independent oil tank unit. The side wings of the pedestrian passage are arranged with lifting and lowering ports of the heating components according to process requirements. The steam components are fixedly installed on the equipment support platform. Its transmission pipeline adopts GB / T8163 standard carbon steel pipes. The middle section of the main pipeline is equipped with PN16 grade bypass pipeline and matching shut-off valve group. The steam source of the steam components is drawn from the steam generation device of the flue gas waste heat boiler of the heavy oil power plant. The reliable connection between the steam components and the steam heating pipes 9 of each heating component 1 is achieved through flexible hoses made of fluororubber with a pressure resistance of ≥1.6MPa and a temperature resistance of ≥200℃.

[0036] In one specific embodiment, the planar support 4 adopts a 50×50×4mm square tube welded mesh structure with a mesh density of 200×200mm. The rain shelter is fixed to the top of the planar support 4. The edge of the rain shelter is equipped with a telescopic guide plate. In strong winds, the telescopic guide plate will unfold to reduce lift and wind resistance. The rain shelter extends 1.5m beyond the edge of the suspended platform 3. The guide rail 10 is fixed to the bottom surface of the planar support 4. The guide rail 10 is composed of multiple V-groove guide rails connected by bolts. The V-groove guide rail is made of high-strength wear-resistant alloy steel. The groove depth of the V-groove guide rail is 20mm and the angle is 60°. The end of the V-groove guide rail is equipped with an anti-derailment limit block to prevent the heating component 1 from moving beyond its travel range.

[0037] In one specific embodiment, such as Figure 2 As shown, the heating assembly 1 includes a walking mechanism 7, a lifting mechanism 8, and a steam heating pipe 9 connected in sequence;

[0038] The traveling mechanism 7 moves on the guide rail 10. The steel wheel of the traveling mechanism 7 is embedded in the guide rail 10. The contact surface of the steel wheel is V-shaped and forms a self-centering meshing structure with the guide rail 10. The traveling mechanism 7 is equipped with a power output mechanism, which provides power to the steel wheel.

[0039] The traveling mechanism 7 is equipped with a spring preload pressure adjustment device for adjusting the contact pressure between the steel wheel and the guide rail 10 assembly, which includes a helical spring assembly and an adjustable top rod. The traveling mechanism 7 is equipped with a balance bar on its side, and a hydraulic damper is configured at the end of the balance bar to dynamically compensate for inertial sway during movement.

[0040] Lifting mechanism 8 is used to raise and lower steam heating pipe 9;

[0041] The lifting mechanism 8 consists of an electric drive module and a movable pulley module. The electric drive module is rigidly connected to the bottom of the traveling mechanism 7. The output end of the electric drive module forms a closed-loop transmission chain with the lower suspended movable pulley module through a wire rope transmission mechanism. The wire rope transmission mechanism adopts a parallel double-rope redundant structure design, with the two wire ropes arranged in parallel with a 50mm spacing. The ends of the two ropes are connected to independent anchor points, providing single-rope failure protection. The electric drive module integrates an electromagnetic power failure braking unit and a mechanically triggered travel limiter. The electromagnetic power failure braking unit can instantly trigger the braking mechanism in the event of an abnormal power outage, ensuring the movable pulley... The module maintains a locked position. The movable pulley module includes a high-precision pulley block and a quick-release hook assembly. The quick-release hook assembly is equipped with a spring-loaded wedge-shaped locking tongue, which forms an interference fit with the flange groove on the steam heating pipe 9 to achieve a mechanical interlock connection with the steam heating pipe 9. The mechanically triggered travel limiter is equipped with a bidirectional physical stop in the vertical movement direction. When the lifting displacement reaches the preset threshold, the drive power is directly cut off through the lever trigger mechanism, forming a double protection mechanism. The mechanically triggered travel limiter adopts a fully mechanical structure design to ensure that it can effectively prevent travel overrun even in the event of electrical system failure.

[0042] The steam heating pipe 9 is connected to the hose for conveying and outputting hot steam. The steam heating pipe 9 is used to heat the heavy oil in the tank of the oil tanker. The steam heating pipe 9 has a spiral structure with a gradually changing arrangement. The ends and tails of the steam heating pipe 9 are connected to the steam assembly through hoses.

[0043] When this utility model is in operation, the heavy oil tanker is parked below the heating port of the suspended platform 3. The heating component 1 is moved to directly above the heavy oil tanker by the traveling mechanism 7 of the heating component 1. After being aligned, the steam heating pipe 9 is sent from the lifting port of the heating component to the heating port on the top of the tanker by the lifting mechanism 8. The manual valves of the steam component are opened to allow steam to circulate in the steam heating pipe 9. The temperature of the heavy oil tanker is confirmed by the temperature detection device. After the unloading conditions are met, the steam component's air inlet valve is closed, and the steam heating pipe 9 is slowly pulled out. The heavy oil tanker slowly drives out of the heating area and stops at the unloading area to connect the pump set to start unloading.

[0044] This utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims.

Claims

1. A system for rapid heating of heavy oil in a cryogenic state, characterized by, include: A suspended platform is fixedly installed on a support mechanism, and the suspended platform is equipped with guide rails. A height-adjustable heating element, which is movably suspended below the guide rail; The guide rail allows the heating assembly to move above a designated heating area on the tanker truck body, the heating assembly being used to heat the heavy oil inside the tanker truck body.

2. The system for rapid heating of heavy oil in cryogenic state according to claim 1, wherein The support mechanism includes a support column and an inclined support rod. The suspended platform is fixed to the middle of the support column, and the inclined support rod is fixedly connected to the edge of the suspended platform and the ground. The inclined support rod is used to prevent the suspended platform from tipping over.

3. The system for rapid heating of heavy oil in cryogenic state according to claim 2, wherein The suspended platform is equipped with a rain shelter, which is fixed to the top of the support column.

4. The system for rapid heating of heavy oil in cryogenic state according to claim 1, wherein The suspended platform is equipped with a steam heating pipe storage tank, which is used to store the heating components.

5. The system for rapid heating of heavy oil in cryogenic state according to claim 1, wherein The suspended platform is equipped with a pedestrian walkway platform.

6. The system for rapid heating of heavy oil in cryogenic state according to claim 1, wherein The suspended platform is equipped with a heating component control system, which is used to control the movement and lifting of the heating component.

7. The rapid heating system for heavy oil at low temperatures according to claim 1, characterized in that, The heating assembly includes a traveling mechanism, a lifting mechanism, and a steam heating pipe connected in sequence. The traveling mechanism is capable of moving on the guide rail. The lifting mechanism is used to raise and lower the steam heating pipe. The steam heating pipe is connected to a hose for conveying and outputting hot steam. The steam heating pipe is used to heat the heavy oil in the tank of the tanker truck.

8. The system for rapid heating of heavy oil in cryogenic state according to claim 7, wherein The walking mechanism is equipped with a balance bar to prevent it from derailing.

9. The system for rapid heating of heavy oil in cryogenic state according to claim 7, wherein The lifting mechanism includes a motor assembly fixed below the traveling mechanism and a movable pulley assembly suspended below the motor. The motor assembly is used to lift the movable pulley assembly, and the movable pulley assembly is detachably connected to the steam heating pipe.

10. The system for rapid heating of heavy oil in cryogenic state according to claim 7, wherein The steam heating pipe has a spiral structure, and the spacing of the spiral structure adopts a gradually changing layout.

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