Lubricating oil heat exchange box, hybrid power integrated system and heat exchange and dissipation method

Abstract

The invention discloses a lubricating oil heat exchange box, a hybrid power integrated system and a heat exchange and dissipation method, the lubricating oil heat exchange box comprises a box body, a fuel oil pipeline and a lubricating oil pipeline which are mutually independent are arranged in the box body, and the fuel oil pipeline is close to the lubricating oil pipeline and exchanges heat with the lubricating oil pipeline through heat exchange; the lubricating oil pipeline provides lubricating oil to lubricate and dissipate heat of a bearing of the equipment, and then the lubricating oil returns to the lubricating oil pipeline; fuel oil provided from the outside is supplied to equipment needing fuel oil after passing through the fuel oil pipeline; wherein at least part of the top surface of the box body is concave downwards to form an arc surface, and the arc surface is used for being attached, assembled and integrated with a motor. Through the special design of the lubricating oil heat exchange box, integration with the motor can be achieved, the installation space needed by a traditional separation arrangement mode is greatly reduced, the compactness of the system is improved, and integration is facilitated.

Description

Technical Field

[0001] The invention relates to a hybrid power system, in particular to a lubricating oil heat exchange box, and a hybrid power integrated system and a heat exchange and heat dissipation method comprising the lubricating oil heat exchange box. Background Art

[0002] In modern hybrid power systems, the motor is a key power conversion component, and its performance and reliability are crucial to the performance of the entire system. However, the separate layout of the motor and the lubricant heat exchanger in the existing technology has gradually shown its limitations, especially in terms of integration, space utilization, thermal management and maintenance efficiency, and the thermal management and flow control of fuel and lubricant is a key technical field. These systems usually require effective methods to regulate and control the temperature and flow of fuel and lubricant to ensure the performance and reliability of the engine and other key components under various working conditions.

[0003] In the prior art, the heat generated by the motor needs to be dissipated. The heat loss and transfer delay in this process may cause the motor to overheat. Bearings, compressors and other components need to be fully lubricated and cooled to ensure that they can maintain normal operation during high-speed rotation. In response to these problems, some prior art has adopted integrated cooling systems, but these systems are often complex in structure, occupy a large space, and it is difficult to achieve precise thermal management. In addition, the fuel and lubricating oil system in the prior art does not fully utilize the potential of heat exchange, resulting in energy waste and reduced efficiency.

[0004] With the development of technology and the growing market demand for efficient, compact, and intelligent hybrid systems and fuel and oil cooling systems, the limitations of existing technologies have become more prominent, especially in space-constrained miniaturized equipment. In view of the above problems, it is particularly necessary to develop a lubricating oil heat exchange box that integrates efficient heat exchange and has the function of integration with the motor. Summary of the invention

[0005] In order to solve the above problems, the present invention proposes a lubricating oil heat exchange box that integrates high-efficiency heat exchange and has the function of integration with a motor, and a hybrid power integrated system including the lubricating oil heat exchange box.

[0006] Based on the first main aspect of the present invention, there is provided a lubricating oil heat exchange box with liquid cooling control and an appearance adapted to a motor, comprising a box body, wherein the interior of the box body is provided with mutually independent fuel pipelines and lubricating oil pipelines, wherein the fuel pipeline is close to the lubricating oil pipeline and exchanges heat with the lubricating oil pipeline through heat exchange; the lubricating oil pipeline provides lubricating oil to lubricate and dissipate heat for the bearings of the equipment and then returns to the lubricating oil pipeline;

[0007] The externally provided fuel is supplied to the equipment requiring the fuel through the fuel pipeline;

[0008] The top surface of the box body is at least partially concave to form an arc surface for fitting and assembling integration with the motor.

[0009] Through this structural design, the oil heat exchange box can not only realize the independent circulation of fuel and oil, but also realize efficient heat exchange through closely arranged pipelines. The fuel pipeline is set close to the surface of the motor, so that the motor can be integrated with the oil heat exchange box, reducing the space occupied and facilitating integration. In addition, it can also enable the fuel to exchange heat with the motor, reduce the motor temperature, improve the heat dissipation efficiency of the system, and further improve the overall thermal management efficiency of the system.

[0010] The top surface of the lubricating oil heat exchange box is concave to form a smooth arc surface, which is used for assembly and integration with the motor; the fuel pipeline inside the lubricating oil heat exchange box is designed to be close to the inner surface of the arc surface of the lubricating oil heat exchange box. The arc surface of the lubricating oil heat exchange box is in contact with the motor, and the heat generated during the operation of the motor is more effectively transferred to the fuel, which not only realizes integration with the motor, but also provides an effective heat exchange path for the motor, thereby improving the heat dissipation efficiency and service life of the motor.

[0011] The fuel pipeline and lubricating oil pipeline inside the lubricating oil heat exchange box are designed as independent pipelines. By physically isolating the fuel and lubricating oil, oil mixing caused by pipeline leakage or oil mixing is avoided, ensuring that all internal components of the engine are always in a pure working environment.

[0012] As a further preferred solution, the fuel pipeline is arranged close to the arc surface to dissipate heat for the motor more effectively. Preferably, the lubricating oil pipeline is arranged close to and below the fuel pipeline.

[0013] As a further preferred embodiment, the top of the box body has two ends that are not recessed, one end is provided with a fuel inlet for external fuel to enter the fuel pipeline or a fuel outlet for the fuel to be transported to the equipment and a lubricating oil inlet for the lubricating oil to return to the lubricating oil pipeline, and the other end is provided with the fuel outlet or the fuel inlet and a lubricating oil outlet for providing the lubricating oil to the bearings of the equipment for lubrication and heat dissipation.

[0014] As a further preferred solution, the arc surface shape matches the surface shape of the motor and / or the outer surface other than the top surface of the box body is provided with heat dissipation fins. Preferably, the heat dissipation channel formed between the heat dissipation fins is opened according to the flow direction of the external air fluid. The design of the heat dissipation fins further enhances the heat dissipation performance, so that the lubricating oil heat exchange box can maintain a stable operating temperature under a higher load. This design of the heat dissipation fins allows air to flow more smoothly through the heat dissipation channel, reduces the resistance of air flow, makes the air flow faster, enhances the heat dissipation effect, ensures that the lubricating oil heat exchange box can effectively dissipate heat under various working conditions, and maintains the stable operation of the system.

[0015] As a further preferred solution, the box body is made of heat-conducting material, and / or the fuel pipeline and lubricating oil pipeline are made of copper. By selecting materials with excellent heat conductivity, the lubricating oil heat exchange box can perform heat exchange more quickly and effectively.

[0016] According to a second main aspect of the present invention, a hybrid power integrated system is provided, comprising at least:

[0017] an integrated space;

[0018] A hybrid power system is arranged in the integrated space, the hybrid power system having at least a gas turbine engine, an output motor driven by the engine to generate and output electrical energy, and a lubricating oil heat exchange box;

[0019] The lubricating oil heat exchange box is used for assembly and integration with the output motor, and the lubricating oil heat exchange box is the aforementioned lubricating oil heat exchange box.

[0020] The system is a hybrid integrated system with compact structure, high thermal management efficiency, precise control and easy maintenance. The system achieves miniaturization and integration and improves the overall performance and stability of the system through integrated space layout and precise oil circulation.

[0021] Among them, at least one air inlet and at least one fan for discharging gas inside the integrated space are arranged on the integrated space to form gas flow inside the integrated space. Preferably, the fan is an exhaust fan, and / or the air inlet and the fan are staggered.

[0022] In one embodiment, the interior of the integrated space is divided into a cold zone and a hot zone by a heat insulation layer;

[0023] Arranging high temperature equipment in the hot zone, the high temperature equipment at least including a combustion chamber of the gas turbine engine, the fuel after passing through the fuel pipeline being provided to the combustion chamber for use by the combustion gas;

[0024] Arrange low-temperature equipment in the cold zone, wherein the low-temperature equipment at least includes the output motor and a lubricating oil heat exchange box;

[0025] Preferably, the cold zone is provided with the air inlet and the fan;

[0026] In another preferred embodiment, the fuel provided from outside is passed through a fuel filter by a fuel pump and then enters the fuel pipeline, and the fuel pump and / or the fuel filter are arranged in the cold zone of the integrated space;

[0027] And / or one or all of an oil-gas separator, an oil pump and an oil filter are connected in series on the line through which the lubricating oil heat exchange box transports lubricating oil to the bearing, and any one or more of the oil-gas separator, the oil pump and the oil filter are arranged in the cold zone of the integrated space.

[0028] For efficient thermal management, the integrated space is divided into a cold zone and a hot zone by an insulation layer. Low-temperature equipment is arranged in the cold zone, and high-temperature equipment is arranged in the hot zone, which effectively prevents unexpected heat transfer. High-temperature equipment in the hot zone, such as the combustion chamber and high-temperature exhaust port, is isolated in a specific area by the insulation layer, while low-temperature equipment in the cold zone can effectively control heat interference because it is isolated from high-temperature equipment, avoiding performance degradation and equipment loss caused by overheating, and is effectively protected, ensuring the working stability of equipment in different temperature zones in the system.

[0029] As a further preferred solution, the equipment in the cold zone and the hot zone of the integrated space are sealed and connected via pipelines or rotating shafts of the thermal insulation layer.

[0030] Based on the third main aspect of the present invention, a heat exchange and heat dissipation method for a hybrid power system is provided:

[0031] The hybrid power system at least comprises a gas turbine engine, an output driven by the engine to generate electric power, and the aforementioned lubricating oil heat exchange tank; the method comprises the following steps:

[0032] The fuel in the fuel pipeline provided to the lubricating oil heat exchange box from the outside is used for heat exchange and heat dissipation of the motor attached to the lubricating oil heat exchange box;

[0033] At the same time, the lubricating oil passing through the lubricating oil pipeline exchanges heat with the fuel in the fuel pipeline and cools down, and the fuel is provided to the bearing for lubrication and heat dissipation, and the fuel is heated and provided to the combustion chamber;

[0034] Preferably, the hybrid power system is arranged in the aforementioned integrated space, and the heat exchange and heat dissipation method further dissipates heat from the hybrid power system through the gas flow formed by the air inlet of the integrated space and the fan.

[0035] Advantages and beneficial effects of the present invention:

[0036] The present invention proposes a lubricating oil heat exchange box that integrates efficient heat exchange and has the function of integration with the motor, and a hybrid power integrated system including the lubricating oil heat exchange box. This system can not only achieve effective management of fuel and lubricating oil, but also improve the efficient operation of the engine, reduce maintenance costs, enhance the environmental protection of the system and the comfort of users, and fully meet the needs of modern industry for high-performance power systems. The integrated design also helps to simplify the maintenance and overhaul process, reduce maintenance costs, and provide an implementation basis for intelligent control, realizing real-time monitoring and automatic adjustment of motor temperature and lubrication status, thereby improving the reliability and performance of the entire system.

[0037] The present invention integrates the lubricating oil heat exchange box with the motor, greatly reducing the installation space required by the traditional separate layout and improving the compactness of the system. This is not only suitable for small-sized equipment with limited space, but also provides greater design freedom for complex power system layout, which is further conducive to the integration of the power system. The integrated design of the lubricating oil heat exchange box and the motor allows the heat generated by the motor to be quickly transferred to the lubricating oil heat exchange box, accelerating the heat dissipation of the motor and making full use of energy through heat exchange to avoid waste.

[0038] The system also has the following characteristics: the present invention arranges the hybrid power system in an integrated space, so that after the entire integrated system is independently installed, it can be applied as a whole to different application scenarios, such as aircraft (for example, drones, manned aircraft, airships, helicopters, etc.), ships, special vehicles (for example, ambulances, fire trucks, police cars, engineering rescue vehicles, military supervision vehicles, etc.) and other equipment, which is conducive to rapid installation and overall maintenance. In addition, by coordinating the air intake and exhaust of the integrated space, the integrated heat dissipation of the hybrid power system can be optimized, and there is no need to configure an air cooling device for each device, which is more conducive to miniaturization and integration, and is also more conducive to intelligent control of thermal management.

[0039] With innovative integrated design, efficient heat exchange and heat dissipation technology, independent piping system and advanced intelligent control strategy, this system can not only realize the effective management of fuel and lubricating oil, but also improve the efficient operation of the engine, simplify the maintenance and overhaul process, reduce maintenance costs, enhance the environmental protection of the system and the comfort of users, and fully meet the needs of modern industry for high-performance power systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 Schematic diagram of the hybrid integrated system.

[0041] Figure 2 Schematic diagram of the lubricating oil heat exchange box.

[0042] Figure 3 for Figure 2 A cross-sectional view of .

[0043] Figure 4 for Figure 2 Front view of .

[0044] Figure 5 for Figure 4 Cross-sectional view of AA.

[0045] Figure 6 for Figure 4 Top view from direction B.

[0046] The markings in the accompanying drawings are: 1-lubricating oil heat exchange box, 2-motor, 3-fuel tank, 4-fan, 5-combustion chamber, 6-air inlet, 7-first bearing cavity, 8-second bearing cavity, 9-lubricating oil pump, 10-lubricating oil filter, 11-oil-gas separator, 12-inlet assembly, 13-fuel pipeline, 14-lubricating oil pipeline, 15-fuel pump, 16-fuel filter, 17-hot zone, 18-cold zone, 19-thermal insulation layer, 20-integrated space, 21-arc surface, 22-heat dissipation fins, 23-base, 24-assembly screw holes, 25-lubricating oil inlet, 26-fuel inlet, 27-fuel outlet, 28-lubricating oil outlet. DETAILED DESCRIPTION

[0047] The preferred embodiments of the present invention will be described in detail below so that the purpose, features and advantages of the present invention can be more clearly understood. It should be understood that the following embodiments are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0048] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0049] References throughout the specification to "one embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0050] like Figure 2 This is a schematic diagram of the appearance of the lubricating oil heat exchange box 1 of the present invention, which is adapted to the motor. Figure 2-Figure 6As shown, the lubricating oil heat exchange box 1 includes a box body, and the interior of the box body is provided with a fuel pipeline 13 and a lubricating oil pipeline 14 which are independent of each other. The fuel pipeline 13 is close to the lubricating oil pipeline 14, and exchanges heat with the lubricating oil pipeline 14 through heat exchange. The lubricating oil pipeline 14 provides lubricating oil to lubricate and dissipate heat for bearings of equipment (such as motors, engines, etc.) and then returns to the lubricating oil pipeline 14. The fuel provided from the outside passes through the fuel pipeline 13 and is supplied to equipment requiring fuel (such as gas turbine engine combustion needs). The "external" here refers to, for example, a fuel tank that provides fuel at room temperature.

[0051] That is, the lubricating oil heat exchange box 1 realizes heat exchange between the fuel and lubricating oil passing through it through the above-mentioned arrangement of the internal fuel pipeline 13 and the lubricating oil pipeline 14 .

[0052] Among them, the top surface of the box body is at least partially concave to form an arc surface 21, which is used for fitting and assembling integration with the motor 2. In this way, the fuel and lubricating oil heat exchange box serves as a support and is integrated with the motor, which reduces the space occupied and is beneficial for integration in occasions such as hybrid power systems that have both a fuel and lubricating oil heat exchange box and a generator.

[0053] Preferably, the arc surface 21 is smooth, which is more conducive to fitting with the motor 2, thereby being more conducive to stability support and fitting heat exchange.

[0054] In addition, the bottom of the box is supported by a base 23, and the base 23 is hollow to form an assembly screw hole 24 for support and fixation.

[0055] It can also be seen from the figure that the top of the box body has two ends that are not recessed, one end of which is provided with a fuel inlet 26 for external fuel from, for example, a fuel tank to enter the fuel pipeline 13, and a lubricating oil inlet 25 for the lubricating oil to return to the lubricating oil pipeline 14, and the other end is provided with a fuel outlet 27 for conveying the fuel from the fuel pipeline 13 to the equipment requiring fuel, such as a gas turbine engine, and a lubricating oil outlet 28 for providing the lubricating oil to the bearings of the equipment, such as an electric motor, for lubrication and heat dissipation.

[0056] Of course, the fuel inlet, the lubricating oil outlet, or one or more of the fuel outlet and the lubricating oil inlet can be arranged in any combination at any end of the top surface of the box body. For example, the fuel inlet 26 and the lubricating oil outlet 28 can be arranged at one end, and the fuel outlet 27 and the lubricating oil inlet 26 can be arranged at the other end. The specific design can be based on the needs of on-site pipeline layout.

[0057] like Figure 3-Figure 6As shown, the fuel pipeline 13 and the lubricating oil pipeline 14 inside the lubricating oil heat exchange box 1 are fitted and staggered with each other, and the fuel pipeline 13 and the lubricating oil pipeline 14 inside the lubricating oil heat exchange box 1 are independent of each other and are coiled and staggered, and the fuel pipeline 13 is arranged close to the arc surface 21, and the lubricating oil pipeline 14 is fitted below the fuel pipeline 13: in this way, since the fuel pipeline 13 is arranged close to the arc surface 21, the normal temperature fuel can exchange heat with the motor 2, which is beneficial to the heat dissipation of the motor 2.

[0058] In addition, in order to increase the heat dissipation of the lubricating oil heat exchange box 1 and the heat dissipation of the contact area with the external air, heat dissipation fins 22 are arranged on the surface of the lubricating oil heat exchange box 1 on all sides, and preferably, the heat dissipation fins 22 are opened in the same direction according to the flow direction of the external air fluid.

[0059] In addition, the box body is made of heat-conducting material, which further improves the heat dissipation and heat exchange performance.

[0060] In addition, the fuel pipeline 13 and the lubricating oil pipeline 14 are made of copper to improve the heat exchange performance.

[0061] like Figure 1 As shown, the present embodiment further provides a hybrid power integrated system, comprising at least one integrated space 20, wherein the integrated space is, for example, a box structure, i.e., having four walls and a top wall and a bottom wall, and the hybrid power system is arranged in the integrated space 20. The hybrid power system of the present embodiment comprises at least a gas turbine engine, an output motor driven by the engine to generate and output electrical energy, and a lubricating oil heat exchange box 1, wherein the lubricating oil heat exchange box 1 is used for assembly and integration with the output motor, wherein the output motor here is the aforementioned motor 2.

[0062] The gas turbine engine is connected to the output motor via a shaft. In one example, specifically:

[0063] The gas turbine engine comprises:

[0064] A compressor assembly, the compressor assembly comprising: an initiator motor, an air inlet integrated cover, and a compressor, wherein the compressor is connected to the initiator motor and the air inlet integrated cover respectively;

[0065] A combustion chamber assembly, the combustion chamber assembly comprising: a diffuser, a guide vane and a combustion chamber connected in sequence, wherein a compressor is connected to the diffuser;

[0066] The gas turbine assembly comprises: a gas turbine, which is rotatably connected to the compressor, and the air entering from the compressor assembly enters the combustion chamber and drives the gas turbine to rotate after combustion, and the rotational force of the gas turbine is transmitted to the compressor through the shaft system;

[0067] An exhaust damper assembly, the exhaust damper assembly is respectively connected to the combustion chamber and the hot gas outlet, and is adjacent to the heat insulation layer, and is used to discharge the hot gas remaining from the combustion;

[0068] The power turbine, the high-temperature and high-pressure combustion gas generated by the rotation of the gas turbine drives the power turbine to rotate to output mechanical work to the output motor. The power turbine and the gas turbine can be connected by a direct shaft or through a coupling, a gearbox, etc.

[0069] The output motor is a high-speed motor with a rotation speed greater than or equal to 20,000 r / min.

[0070] At least one air inlet 6 and at least one fan 4 for discharging gas from the integrated space 20 are provided on the integrated space 20. The air inlet 6 cooperates with the fan 4 to form a gas flow inside the integrated space 20, thereby dissipating the heat in the integrated space and dissipating heat to various devices in the integrated space. At this time, the flow channel of the heat dissipation teeth provided in the aforementioned lubricating oil heat exchange box 1 is opened along the direction of the gas flow formed by the air inlet and the fan, which is beneficial to the heat dissipation of the lubricating oil heat exchange box 1.

[0071] Preferably, the fan 4 is an exhaust fan, which is beneficial for exhausting the gas inside the integrated space 20, thereby facilitating ventilation or heat dissipation.

[0072] In one example, the air inlet 6 and the fan 4 are staggered, that is, the air inlet and the air outlet are not arranged in relative positions, but staggered by a certain position, which can increase the gas flow distance and is beneficial to heat exchange or heat dissipation.

[0073] In one example, the interior of the integrated space is divided into a cold zone 18 and a hot zone 17 by a heat insulation layer 19. In the hot zone 17, high-temperature equipment that generates high temperature is arranged, and the high-temperature equipment at least includes the combustion chamber 5 of the gas turbine engine, and the fuel after passing through the fuel pipeline 13 is provided to the combustion chamber 5 for use by the combustion gas; in the cold zone 18, low-temperature equipment that relatively does not generate high temperature is arranged, and the low-temperature equipment at least includes the output motor 2 and the lubricating oil heat exchange box 1. In this way, the low-temperature equipment is separated from the high-temperature equipment, and the low-temperature equipment such as the motor is further prevented from being affected by the high temperature generated by the high-temperature equipment.

[0074] Of course, the pipelines or shaft connections between the equipment in the cold zone and the equipment in the hot zone are all set through the insulation layer 19 and are sealed accordingly to avoid air circulation between the hot zone and the cold zone.

[0075] Preferably, the air inlet 6 and the fan 4 are both provided in the cold zone and the hot zone, so that the hot air inside the corresponding hot zone or cold zone can be discharged through the respective air inlets and fans, and the equipment in the corresponding area can be cooled.

[0076] like Figure 1 As shown, one end of the fuel pipeline 13 is connected to the fuel tank 3 arranged outside the integrated space 20 through a pipeline, and a fuel pump 15 and a fuel filter 16 are arranged in series on the pipeline; the other end of the fuel pipeline 13 is connected to the combustion chamber 5 located in the hot zone 17 of the integrated space 20 for combustion. In one example, the fuel pump 15 and the fuel filter 16 are also arranged in the cold zone 18.

[0077] like Figure 1 As shown, the lubricating oil pipeline 14 forms a circulation loop between the fuel tank 3 and the bearing cavity for setting the bearing. In the circulation loop, the lubricating oil heat exchange box 1 delivers lubricating oil to the bearing cavity (including the first bearing cavity 7 and the second bearing cavity 8), and one or all of the oil-gas separator 11, the lubricating oil pump 9 and the lubricating oil filter 10 are connected in series on the line. In one example, the bearing cavity and the oil-gas separator 11, the lubricating oil pump 9 and the lubricating oil filter 10 are also arranged in the cold zone 18. The integrated space operation of the hybrid power system provided in this embodiment includes the following steps:

[0078] The lubricating oil is sucked from the lubricating oil heat exchange tank 1 by the action of the lubricating oil pump 9, and the lubricating oil exchanges heat with the fuel pipeline 13 through the lubricating oil pipeline 14, and flows through the oil-gas separator 11 to remove gas from the oil-gas mixture;

[0079] The lubricating oil then flows through the lubricating oil filter 10, and the filtered lubricating oil is transported to the first bearing cavity 7 and the second bearing cavity 8 through pipelines for lubrication and heat dissipation, and then, under the action of the lubricating oil pump 9, flows back to the lubricating oil pipeline 14 inside the lubricating oil heat exchange box 1 through the circulation pipeline to exchange heat with the fuel pipeline 13, completing the lubrication and cooling cycle; and

[0080] The fuel is sucked from the fuel tank 3 by the fuel pump 15 ; the fuel flows through the fuel filter 16 for filtration, and then enters the fuel pipeline 13 in the lubricating oil heat exchange box 1 to exchange heat with the lubricating oil pipeline 14 , and the fuel heated by heat exchange is delivered to the combustion chamber 5 .

[0081] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A lubricating oil heat exchange box, characterized in that: Including box; The box body is provided with a fuel pipeline (13) and a lubricating oil pipeline (14) which are independent of each other; The fuel pipeline (13) is close to the lubricating oil pipeline (14) and exchanges heat with the lubricating oil pipeline (14) through heat exchange; the lubricating oil pipeline (14) provides lubricating oil to lubricate and dissipate heat for the bearings of the equipment and then returns to the lubricating oil pipeline (14); The fuel provided from outside is supplied to the equipment requiring the fuel through the fuel pipeline (13); The top surface of the box body is at least partially concave to form an arc surface (21) for fitting and assembling with the motor (2).

2. The lubricating oil heat exchange box according to claim 1, characterized in that: The fuel pipeline (13) is arranged close to the arc surface (21) so as to dissipate heat for the motor (2). Preferably, the lubricating oil pipeline (14) is arranged close to and below the fuel pipeline (13).

3. The lubricating oil heat exchange box according to claim 1 or 2, characterized in that: The top of the box body has two ends that are not recessed, one end of which is provided with a fuel inlet (26) for external fuel to enter the fuel pipeline (13) or a fuel outlet (27) for the fuel to be transported to the equipment, and a lubricating oil inlet (25) for the lubricating oil to return to the lubricating oil pipeline (14), and the other end is provided with the fuel outlet (27) or the fuel inlet (26) and a lubricating oil outlet (28) for providing the lubricating oil to the bearings of the equipment for lubrication and heat dissipation.

4. The lubricating oil heat exchange box according to any one of claims 1 to 3, characterized in that: The shape of the arc surface (21) matches the surface shape of the motor (2) and / or the outer surface other than the top surface of the box body is provided with heat dissipation fins (22). Preferably, the heat dissipation channels formed between the heat dissipation fins (22) are opened in the flow direction of the external air fluid.

5. The lubricating oil heat exchange box according to claim 1, characterized in that: The box body is made of heat-conducting material, and / or the fuel pipeline (13) and the lubricating oil pipeline (14) are made of copper.

6. A hybrid power integrated system, characterized in that: At least: An integrated space (20), A hybrid power system is arranged in the integrated space (20), the hybrid power system having at least a gas turbine engine, an output motor driven by the engine to generate and output electrical energy, and a lubricating oil heat exchange box (1), The lubricating oil heat exchange box (1) is used for being assembled and integrated with the output motor, and the lubricating oil heat exchange box (1) is the lubricating oil heat exchange box according to any one of claims 1 to 5.

7. The hybrid power integrated system according to claim 6, characterized in that: in, At least one air inlet (6) and at least one fan (4) for exhausting the internal gas of the integrated space (20) are arranged on the integrated space (20) to form a gas flow inside the integrated space (20). Preferably, the fan (4) is an exhaust fan, and / or the air inlet (6) and the fan (4) are arranged in an offset manner.

8. The hybrid power system according to claim 6 or 7, characterized in that: in, The interior of the integrated space is divided into a cold zone (18) and a hot zone (17) by a heat insulation layer (19); A high temperature device is arranged in the hot zone (17), the high temperature device at least comprising a combustion chamber (5) of the gas turbine engine, and the fuel after passing through the fuel pipeline (13) is provided to the combustion chamber (5) for use by the combustion gas; A low-temperature device is arranged in the cold zone (18), wherein the low-temperature device at least comprises the output motor (2) and a lubricating oil heat exchange box (1); Preferably, the cold zone and / or the hot space is provided with the air inlet (6) and the fan (4); In another preferred embodiment, the fuel provided from outside is passed through a fuel filter (16) by a fuel pump (15) and then enters the fuel pipeline (13), and the fuel pump (15) and / or the fuel filter (16) are arranged in the cold zone (18) of the integrated space (20); and / or An oil-gas separator (11), an oil pump (9) and an oil filter (10) are connected in series on a line for conveying oil from the oil heat exchange box (1) to the bearing, or one or all of them; any one or more of the oil-gas separator (11), the oil pump (9) and the oil filter (10) are arranged in the cold zone (18) of the integrated space (20).

9. The hybrid power integrated system according to claim 8, characterized in that: The equipment in the cold zone (18) and the hot zone (17) of the integrated space (20) are sealed and connected via pipelines or rotating shafts of the thermal insulation layer (19).

10. A heat exchange and heat dissipation method for a hybrid power system, characterized in that: The hybrid power comprises at least a gas turbine engine, an output driven by the engine to generate electricity and output electrical energy, and a lubricating oil heat exchange tank as claimed in any one of claims 1 to 5; The fuel in the fuel pipeline (13) provided to the lubricating oil heat exchange box (1) from the outside is used for heat exchange and heat dissipation of the motor (2) attached to the lubricating oil heat exchange box (1); at the same time, the lubricating oil passing through the lubricating oil pipeline (14) exchanges heat with the fuel in the fuel pipeline (13) and cools down, and is used for lubrication and heat dissipation of the bearing, and the fuel is heated and provided to the combustion chamber (5); Preferably, the hybrid power system is arranged in the integrated space (20) described in any one of claims 6-7, and the heat exchange and heat dissipation method also dissipates heat for the hybrid power system through the gas flow formed by the air inlet (6) of the integrated space (20) and the fan (4).

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