Modular power device for rail locomotive

Abstract

The invention relates to the technical field of power generation power devices, in particular to a modular power device for a rail locomotive, which comprises a complete machine framework, a plurality of longitudinal mounting racks are formed in the complete machine framework, and a plurality of mounting positions are formed on each layer of mounting rack; the power unit is used for generating electricity and supplying the electricity to the rail locomotive, and a bottom plate assembly is arranged below the power unit; the cooling module is used for dissipating heat of the engine unit, and the cooling module forms a cooling air duct and is used for conducting heat exchange on heat of the power unit and then discharging the heat to the outside; the air inlet module is matched with the power unit and used for guiding air into the power unit; and the control module is used for controlling the power unit and the cooling module to work. Integrated installation is carried out through a whole machine framework, so that the installation structure is more compact, the integration degree is increased, the overall size is reduced, the carrying and installation processes are quicker, overhaul and maintenance operation is more convenient, and the overall stability and reliability of the power device are improved.

Description

Technical Field

[0001] The invention relates to the technical field of power generation devices, and in particular to a modular power device for a rail locomotive. Background Art

[0002] Rail locomotives require a large amount of electricity during driving. The existing power supply system includes installed power supply cables and power modules installed on the locomotive. The power module, also known as the power pack, provides electricity to the rail locomotive by self-generating electricity. However, most power packs have some problems, such as low integration, auxiliary system layout that does not meet the overall layout requirements of railway locomotives, and industrial power units with high energy consumption and low reliability. When using traditional rail locomotives, the stability and reliability of the power pack after setting up is usually not high, and the installation, maintenance and replacement processes are complicated and consume a lot of energy. At the same time, the overall structure of the traditional power pack is large, occupies a large space, and is heavy.

[0003] It can be seen that there is room for improvement in the current power module of rail locomotives. The structure of the power module should be optimized to improve its integration for easy installation and use, maintenance and replacement, and reduce the overall size and weight of the power module. The stability and reliability of the power module can be improved during its use. Therefore, it is necessary to propose a more reasonable technical solution to solve the technical problems existing in the prior art. Summary of the invention

[0004] In order to overcome at least one of the defects mentioned above, the present invention proposes a modular power unit for a rail locomotive. By optimizing and adjusting the structure, the integration of the entire power unit is improved, the installation and use process is simpler and faster, and it is also convenient for maintenance and replacement during use, thereby improving the stability and reliability of the power unit.

[0005] In order to achieve the above-mentioned purpose, the power device disclosed in the present invention can adopt the following technical solutions:

[0006] A modular power unit for a rail vehicle, comprising:

[0007] The whole machine structure has a plurality of longitudinal mounting frames formed inside, a plurality of mounting positions formed on each layer of the mounting frames, and a flat bottom surface and side surfaces formed outside the whole machine structure;

[0008] The power unit is used to generate electricity and supply the rail locomotive. A bottom plate assembly is arranged below the power unit. A sewage discharge structure is integrated in the bottom plate assembly. The sewage discharge structure cooperates with the installation position and is located inside the whole machine structure.

[0009] A cooling module is located above the power unit and is used to dissipate heat from the engine unit. The cooling module forms a cooling air duct and is used to discharge heat from the power unit to the outside. A plurality of radiators are arranged in the cooling air duct.

[0010] An air intake module cooperates with the power unit and is used to guide air into the power unit. The air intake port of the air intake module is located on the top mounting frame;

[0011] The control module is used to control the operation of the power unit and the cooling module.

[0012] The power device disclosed above generates electricity after the power unit is in operation to provide electric energy assistance to the rail locomotive. The power unit, cooling module, air intake module and control module are all integrated in the whole machine structure, and the whole machine structure forms a device that can be transferred, installed and output as a whole, so it can be directly installed on the rail locomotive quickly and smoothly, and it can also improve efficiency during inspection and maintenance.

[0013] Further, the bottom plate assembly is located below the power machine assembly to facilitate the maintenance of the power machine assembly. The structure of the bottom plate assembly can be constructed in various forms, and its structure is not limited to a single one. Here, an optimization is made and one of the feasible options is proposed: the bottom plate assembly includes a chassis, a receiving groove is formed on the chassis, and a drainage pipeline for discharging liquid is arranged at the receiving groove. The drainage pipeline extends to the outside of the chassis and is controlled by a discharge valve and a plug. When the above scheme is adopted, the receiving groove can be integrally formed with the chassis, and the drainage pipeline can be a pre-buried pipeline or a separately arranged pipeline; wherein the pre-buried pipeline directly extends from the edge of the receiving groove to the outside of the chassis, is opened and closed by the drainage valve, and is also blocked by a threaded plug; when a separate pipeline is adopted, the internal port of the pipeline is located in the receiving groove and is provided with a discharge valve, and the external port of the pipeline is located on the outside of the chassis and is provided with a discharge valve and a threaded plug for blocking. In some schemes, multiple groups of drainage pipelines can be set at the same time.

[0014] Furthermore, after the power unit is put into operation, it generates electric energy and transmits it to the outside to supply energy for the rail locomotive. The power unit can adopt a variety of composition schemes, and its structure is not limited to a single one. Here, it is optimized and one of the feasible options is proposed: the power unit includes a generator, and the rotor shaft of the generator is coaxially hard-connected with the output shaft of the engine; the outer side of the generator is formed with a water-cooling pipe structure, and the water-cooling pipe structure is connected to the radiator of the cooling module. When adopting the above scheme, the generator can be a permanent magnet generator, and the engine can be a diesel engine, and the direct connection between the generator and the engine reduces the loss of intermediate transmission efficiency.

[0015] Furthermore, during the operation of the power unit, a lot of heat will be generated. When the power unit is overheated, it will affect the working performance of the power unit. The temperature of the power unit needs to be adjusted and controlled to maintain it within a more appropriate range. This goal can be achieved through a variety of cooling module solutions. Therefore, the structure adopted by the cooling module has a direct impact on the heat dissipation effect of the power unit. Its structure is not limited solely. It is optimized here and one of the feasible options is proposed. Specifically: the cooling module includes a fan, which is placed in an air duct surrounded by a radiator and an end plate, and the air inlet end of the air duct is connected to the inner cavity of the whole structure, and the air outlet end of the air duct faces the outside of the whole structure; a mounting seat is provided at the lower end of the air duct, the area of ​​the mounting seat is larger than the aperture of the air duct, and a plurality of longitudinal sealing plates are arranged at intervals on the outer wall of the air duct, and the sealing plates extend and connect to the surface of the mounting seat. When the above scheme is adopted, the air duct can be vertically arranged and placed above the power unit. The heat generated by the operation of the power unit rises and is discharged outward through the air duct. At the same time, the fan generates a guided airflow in the air duct, guiding the hot air in the space where the power unit is located outward, and the external cold air is naturally sucked into the space where the power unit is located, thereby forming a circulating flow of air and promoting temperature control of the space where the power unit is located.

[0016] Furthermore, when the heat dissipation effect is promoted by the radiator, the liquid cooling structure can be used to extend into the space of the power unit to bring out more heat. The radiator can adopt a variety of schemes, and its structure is not limited to a single one. Here, it is optimized and one of the feasible options is proposed: the radiator is formed with a plurality of liquid cooling tubes, and the cooling medium in the liquid cooling tubes circulates from the power unit to absorb heat and then reaches the radiator for heat exchange. When the above scheme is adopted, the extension of the liquid cooling tube can directly exchange heat from the power unit, and the cooling medium absorbs heat and circulates to the radiator, and heat exchange is performed in the air duct to achieve cooling of the cooling medium, and can enter heat exchange recirculation.

[0017] Furthermore, the air intake module can be constructed in various forms, and its structure is not limited to a single one. Here, an optimization is made and one of the feasible options is proposed: the air intake module includes an air intake duct, a purification component is provided at the front end of the air intake duct, and the air intake duct extends to the power unit and is connected to the air inlet of the power unit. When the above scheme is adopted, the air intake module introduces air from the outside to assist the combustion of the power unit, and purifies the air through the purification component to remove dust and other impurities in the air, and also reduces the moisture in the air, and delivers dry and clean air to the power unit.

[0018] Furthermore, the purification component includes a variety of structural forms, and its structure is not limited to a single one. Here, an optimization is made and one of the feasible options is proposed: the purification component includes a front filter and an air filter element arranged in sequence. When the above scheme is adopted, the front filter element is used to block and filter the incoming air, and a tube curtain or corrugated shutter structure can be used to achieve the initial blocking and filtering treatment; the air filter element can be a bag filter element, which can better remove dust, moisture and other impurities in the air through further filtering treatment.

[0019] Furthermore, the structure of the purification component can be optimized and improved to fit the overall machine structure for easy installation. Its structure is not limited to a single one. Here, an optimization is made and one of the feasible options is proposed: the purification component includes an air intake box, and the front filter and the air filter element are both installed at the air intake box; and a water accumulation structure and a drainage structure are formed inside the air intake box to filter and discharge the water entering the air intake box. When the above scheme is adopted, the air intake box includes an open open end, which forms a gradually narrowing air intake scoop at the back. The air intake scoop is connected to an air intake pipeline and is connected to the air intake pipeline of the power unit through a connector.

[0020] Furthermore, the whole machine structure is used to install and set the power unit, cooling module and air intake module, and its structure is not limited to a single one. Here, an optimization is made and one of the feasible options is proposed: the whole machine structure includes a main frame and a panel arranged on the main frame, and an openable observation window or inspection door is arranged at the corresponding installation position on the panel. When the above scheme is adopted, the whole machine structure forms a mounting frame and a mounting position for installing various components. By putting various components into the mounting frame, the whole machine structure is formed, and after the outside is closed by the panel, the whole machine structure is flat, which is convenient for transportation and installation and fixation.

[0021] Furthermore, in order to facilitate subsequent maintenance: a climbing ladder and a maintenance manhole are also formed on the panel.

[0022] Compared with the prior art, some beneficial effects of the technical solution disclosed in the present invention include:

[0023] The present invention improves the installation structure and performs integrated installation through the whole machine architecture, so that the installation structure of the power unit, cooling module and intake module is more compact, the integration of the power device is increased, and the overall size of the power device is reduced, and the subsequent transportation and installation process is faster and the inspection and maintenance operations are more convenient, thereby improving the overall stability and reliability of the power device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only represent some embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 The figure is a schematic diagram of the overall structure of the power unit.

[0026] Figure 2 A top view schematic diagram of the power unit.

[0027] Figure 3 A schematic diagram of the structure of the base plate assembly.

[0028] Figure 4 This is the overall schematic diagram of the air intake module.

[0029] Figure 5 A side view of the air intake module.

[0030] Figure 6 It is the overall schematic diagram of the cooling module.

[0031] Figure 7 A side view schematic diagram of a cooling module.

[0032] In the above drawings, the meanings of the symbols are as follows:

[0033] 1. Overall structure; 101. Inspection manhole; 102. Climbing ladder; 103. Observation window; 104. Inspection door; 2. Power unit; 3. Cooling module; 301. Top plate; 302. Protective net; 303. Fan motor; 304. Fan blade; 305. First radiator; 306. End plate; 307. Sealing plate; 308. Process seat; 309. Second radiator; 310. Sealing strip; 311. Air duct; 3 12. Inspection hole cover; 4. Air intake module; 401. Air intake box; 402. Front filter; 403. Air filter element; 404. Air intake pipe; 405. Elbow connector; 406. Drain structure; 5. Bottom plate assembly; 501. Chassis; 502. First discharge valve; 503. First screw plug; 504. Second discharge valve; 505. Oil drain pipeline; 506. Second screw plug; 507. Drain port; 508. Oil drain port. DETAILED DESCRIPTION

[0034] The present embodiment is further explained below in conjunction with the accompanying drawings and specific embodiments.

[0035] In view of the many deficiencies of existing rail vehicle power modules, the following embodiments are optimized and overcome the defects in the prior art.

[0036] Example

[0037] like Figure 1 , Figure 2 As shown, this embodiment provides a modular power unit for a rail locomotive, which is used to provide rich electric energy to the rail locomotive to assist the operation of the rail locomotive. It improves the integration of the power unit, facilitates transportation, installation and maintenance, improves the convenience of use, and is more stable and reliable when configured on a rail locomotive.

[0038] Specifically, Figure 1 As shown, as the power device provided in this embodiment, one of its structures includes:

[0039] The whole machine structure 1 has a plurality of longitudinal mounting frames formed inside, and a plurality of mounting positions formed on each layer of the mounting frames. The outside of the whole machine structure 1 has a flat bottom surface and side surfaces.

[0040] The whole machine structure 1 is used to install and set the power unit 2, cooling module 3 and air intake module 4. Its structure is not limited to a single one. This embodiment is optimized and adopts one of the feasible options: the whole machine structure 1 includes a main frame and a panel arranged on the main frame, and an openable observation window 103 or an inspection door 104 is arranged on the panel corresponding to the installation position. When the above scheme is adopted, the whole machine structure 1 forms a mounting frame and a mounting position for installing various components. By putting the various components into the mounting frame, the whole machine structure 1 is formed, and after the outside is closed by the panel, the whole machine structure 1 has a flat structure, which is convenient for transportation and installation and fixing.

[0041] In order to facilitate subsequent maintenance: a climbing ladder 102 and a maintenance manhole 101 are also formed on the panel.

[0042] like Figure 1 , Figure 2 , Figure 3 As shown, as the power device provided in this embodiment, the second structure thereof includes:

[0043] The power unit 2 is used to generate electricity and supply the rail locomotive. A bottom plate assembly 5 is arranged below the power unit 2. A sewage discharge structure is integrated in the bottom plate assembly 5. The sewage discharge structure cooperates with the installation position and is located inside the whole machine structure 1.

[0044] The bottom plate assembly 5 is located below the power unit 2 to facilitate maintenance of the power unit 2. The structure of the bottom plate assembly 5 can be constructed in a variety of forms, and its structure is not limited to a single form. This embodiment is optimized and adopts one of the feasible options: Figure 3As shown, the bottom plate assembly 5 includes a chassis 501, on which a receiving groove is formed, and a drainage pipeline for discharging liquid is arranged at the receiving groove, and the drainage pipeline extends to the outside of the chassis 501 and is controlled by a discharge valve and a plug. When the above scheme is adopted, the receiving groove can be integrally formed with the chassis 501, and the drainage pipeline can be a pre-buried pipeline or a separately arranged pipeline; wherein the pre-buried pipeline directly extends from the edge of the receiving groove to the outside of the chassis 501, is opened and closed by the drainage valve, and is also blocked by a threaded plug; when a separate pipeline is adopted, the internal port of the pipeline is located in the receiving groove and is provided with a discharge valve, and the external port of the pipeline is located on the outside of the chassis 501 and is provided with a discharge valve and a threaded plug for blocking. In some schemes, multiple groups of drainage pipelines can be arranged at the same time.

[0045] Preferably, the power unit 2 is installed on the locomotive frame in an integrated manner, and the oil discharge and sewage discharge systems need to be operated under the vehicle. In order to facilitate the transportation, lifting and other operations of the power unit 2, the oil discharge and sewage discharge systems are pre-buried in the bottom plate assembly 5, and the bottom plate assembly 5 cooperates with the rail locomotive through two flange joints to facilitate the connection of the pipeline under the vehicle. When there is dirty oil and sewage on the chassis 501 of the bottom plate assembly 5, open the first discharge valve 502, loosen the first screw plug 503, and the sewage flows out of the vehicle body from the sewage outlet 507 through the pre-buried pipeline, which is simple and quick to operate. When the engine oil of the power unit needs to be replaced, remove the second screw plug 506 at the end of the oil drain pipeline, lead the engine oil into the receiving groove using a container or a pipeline, open the second discharge valve 504, and the waste oil enters the oil drain pipeline 505 from the oil drain port 508 in the receiving groove and is discharged from the oil drain pipeline 505. After the oil is completely drained, close the second discharge valve 504, restore the second screw plug 506 at the end of the pipe, and complete the oil draining work.

[0046] After the power unit 2 is put into operation, it generates electric energy and transmits it to the outside to provide energy for the rail locomotive. The power unit 2 can adopt a variety of composition schemes, and its structure is not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the power unit 2 includes a generator, and the rotor shaft of the generator is coaxially hard-connected with the output shaft of the engine; a water-cooling pipe structure is formed on the outside of the generator, and the water-cooling pipe structure is connected to the radiator of the cooling module 3. When the above scheme is adopted, the generator can adopt a permanent magnet generator, and the engine can adopt a diesel engine, and the direct connection between the generator and the engine reduces the loss of intermediate transmission efficiency.

[0047] Preferably, in order to reduce noise, the engine is equipped with a muffler.

[0048] Preferably, the generator in this embodiment is a permanent magnet generator, and the motor is a diesel generator. The engine is a bearingless maintenance-free flywheel motor. When the engine is directly connected to the generator, a torsional damper is not required, which reduces the loss of transmission efficiency. This greatly reduces the maintenance of components and improves the reliability of the unit. The structure of the power unit 2 is more compact and the light weight is conducive to the installation of the unit and the weight control of the diesel engine power unit.

[0049] Preferably, the power output of the power unit 2 adopts high-voltage direct current output, and its control system includes GCU 4, RCU 6, etc. Its output power is VDC 650VDC~950VDC, with wide voltage control to meet the locomotive traction requirements.

[0050] The diesel power unit 2 starts with a redundant design. In conjunction with the vehicle power battery, the power battery can be used to supply power to the main generator and start the diesel engine. At the same time, a battery pack is also configured in the diesel engine power unit. When the power battery is out of power or fails, the diesel engine is started by the starter motor installed on the diesel engine, realizing two starting modes of the unit. The transmission unit starts the diesel engine only through the starter motor.

[0051] like Figure 6 , Figure 7 As shown, as the power device provided in this embodiment, the third structure thereof includes:

[0052] The cooling module 3 is located above the power unit 2 and is used to dissipate heat from the engine unit. The cooling module 3 forms a cooling air duct 311 and is used to discharge heat from the generator to the outside. A plurality of radiators are arranged in the cooling air duct 311.

[0053] During the operation of the power unit 2, a lot of heat will be generated. When the power unit 2 is overheated, it will affect the working performance of the power unit 2. It is necessary to adjust and control the temperature of the power unit 2 to maintain it within a more suitable range. This purpose can be achieved through a variety of cooling module 3 schemes. Therefore, the structure adopted by the cooling module 3 has a direct impact on the heat dissipation effect of the power unit 2. Its structure is not limited to the only one. This embodiment is optimized and one of the feasible options is adopted. Specifically: the cooling module 3 includes a fan, which is placed in an air duct 311 surrounded by a radiator and an end plate 306, and the air inlet end of the air duct 311 is connected to the inner cavity of the whole machine structure, and the air outlet end of the air duct 311 faces the outside of the whole machine structure; the lower end of the air duct 311 is provided with a mounting seat, the area of ​​the mounting seat is larger than the aperture of the air duct 311, and the outer wall of the air duct 311 is spaced apart with a plurality of longitudinal sealing plates 307, and the sealing plates 307 extend and connect to the surface of the mounting seat. When the above scheme is adopted, the air duct 311 can be vertically arranged and placed above the power unit 2. The heat generated by the operation of the power unit 2 rises and is discharged outward through the air duct 311. At the same time, the fan generates a guided airflow in the air duct 311 to guide the hot air in the space where the power unit 2 is located outward, and the external cold air is naturally sucked into the space where the power unit 2 is located, thereby forming a circulating flow of air and promoting the temperature control of the space where the power unit 2 is located.

[0054] Preferably, a top plate 301 is disposed above the air duct 311 , an air duct opening 311 is opened on the top plate 301 , and a protective net 302 is disposed at the air duct opening 311 .

[0055] Preferably, in this embodiment, the sealing plate 307 divides the outside of the air duct 311 into a plurality of independent spaces. When the outside air enters the independent space formed by the sealing strip 310, the partition plate, and the sealing plate 307 through the porous mesh of the side wall, it passes through the radiator 1 and the radiator 2 respectively, and after the water-air and air-air heat exchange at the radiator, it enters the air duct 311 for heat exchange. When the fan motor 303 or the motor drives the fan blade 304 to rotate, the exchanged hot air is blown into the atmosphere through the protective net 302, completing the process of heat exchange of the cooling system. The fan can be frequency-controlled according to the different water temperature of the diesel engine, the air temperature after the intercooler, the main generator winding and the controller temperature by controlling the speed, effectively reducing the consumption of auxiliary power. When the fan motor 303 is used to drive the fan blade 304, the cooling outside air of the fan motor 303 enters the inside of the fan motor 303 through the air duct 311 for cooling, ensuring the reliability of the operation of the fan motor 303. When the fan motor 303 or the motor is maintained and repaired, the operation can be entered through the inspection hole cover 312, and the operation is convenient and fast. A process seat 308 is arranged on both sides of the cooling device, and the radiator 1 and the radiator 2 are assembled by rotating the fetal membrane, which is safe and reliable.

[0056] When the heat dissipation effect is promoted by the radiator, the liquid cooling structure can be used to extend into the space of the power unit 2 to bring out more heat. The radiator can adopt a variety of schemes, and its structure is not limited to the only one. This embodiment is optimized and adopts one of the feasible options: a plurality of liquid cooling pipes are formed on the radiator, and the cooling medium in the liquid cooling pipes circulates from the power unit 2 to absorb heat and then reaches the radiator for heat exchange. When the above scheme is adopted, the extension of the liquid cooling pipe can directly exchange heat from the power unit 2, and the cooling medium absorbs heat and circulates to the radiator, and heat exchange is performed in the air duct 311 to achieve cooling of the cooling medium, and can enter the heat exchange recirculation.

[0057] like Figure 4 , Figure 5 As shown, as the power device provided in this embodiment, the fourth structure thereof includes:

[0058] The air intake module 4 cooperates with the power unit 2 and is used to guide air into the power unit 2. The air intake port of the air intake module 4 is located on the top-level mounting frame.

[0059] The air intake module 4 can be constructed in various forms, and its structure is not limited to a single one. This embodiment optimizes and adopts one of the feasible options: the air intake module 4 includes an air intake duct 404, a purification component is provided at the front end of the air intake duct 404, and the air intake duct 404 extends to the power unit 2 and is connected to the air inlet of the power unit 2. When the above scheme is adopted, the air intake module 4 introduces air from the outside to provide combustion support for the power unit 2, and purifies the air through the purification component to remove dust and other impurities in the air, and also reduces the moisture in the air, and sends dry and clean air to the power unit 2.

[0060] Preferably, the air intake pipe 404 can be connected to the power unit 2 through a bend connector 405 .

[0061] The purification component includes a variety of structural forms, and its structure is not limited to a single one. This embodiment optimizes and adopts one of the feasible options: the purification component includes a front filter 402 and an air filter element 403 arranged in sequence. When the above scheme is adopted, the front filter element 402 is used to block and filter the incoming air, and a tube curtain or corrugated shutter structure can be used to achieve the initial blocking and filtering treatment; the air filter element 403 can be a bag filter element, which can better remove dust, moisture and other impurities in the air through further filtering treatment.

[0062] The structure of the purification component can also be optimized and improved to fit the whole machine structure 1 for easy installation. Its structure is not limited to the only one. This embodiment optimizes and adopts one of the feasible options: the purification component includes an air intake box 401, and the front filter 402 and the air filter element 403 are both installed at the air intake box 401; and a water accumulation structure and a drainage structure 406 are formed inside the air intake box 401 to filter and discharge the water entering the air intake box 401. When the above scheme is adopted, the air intake box 401 includes an open open end, and a gradually narrowing air intake scoop is formed at the back. The air intake scoop is connected to the air intake pipeline and is connected to the air intake pipeline of the power unit 2 through a connector.

[0063] Preferably, the drainage structure 406 includes a drainage pipe.

[0064] The power device provided in this embodiment includes the following structure:

[0065] The control module is used to control the operation of the power unit 2 and the cooling module 3.

[0066] Preferably, the control module in this embodiment includes a control host, and the control also includes a human-computer interaction screen, and the human-computer interaction screen is communicatively connected with the control host.

[0067] The power device disclosed in this embodiment generates electricity after the power unit 2 is in operation to provide electric energy assistance to the rail vehicle. The power unit 2, cooling module 3, air intake module 4 and control module are all integrated in the whole machine architecture 1, and the whole machine architecture 1 forms a device that can be transferred, installed and output as a whole, so it can be directly installed on the rail vehicle quickly and smoothly, and it can also improve efficiency during inspection and maintenance.

[0068] The above are the implementation methods listed in this embodiment, but this embodiment is not limited to the above optional implementation methods. Those skilled in the art can arbitrarily combine the above methods to obtain other various implementation methods. Anyone can derive other various implementation methods under the inspiration of this embodiment. The above specific implementation methods should not be understood as limiting the protection scope of this embodiment. The protection scope of this embodiment should be based on the definition in the claims.

Claims

1. A modular power unit for a railway locomotive, characterized in that: include: The whole machine structure (1) has a plurality of longitudinal mounting frames formed inside, a plurality of mounting positions formed on each layer of the mounting frames, and a flat bottom surface and side surfaces formed outside the whole machine structure (1); A power unit (2) is used to generate electricity and supply it to a rail vehicle. A base plate assembly (5) is arranged below the power unit (2). A sewage discharge structure is integrated in the base plate assembly (5). The sewage discharge structure cooperates with the installation position and is located inside the whole machine structure (1). A cooling module (3) is located above the power unit (2) and is used to dissipate heat from the engine unit. The cooling module (3) forms a cooling air duct (311) and is used to discharge heat from the power unit (2) to the outside. A plurality of radiators are arranged in the cooling air duct (311); An air intake module (4) cooperates with the power unit (2) and is used to guide air into the power unit (2), and an air intake port of the air intake module (4) is located on a mounting frame at the top layer; The control module is used to control the operation of the power unit (2) and the cooling module (3).

2. The modular power unit for a railway locomotive according to claim 1, characterized in that: The base plate assembly (5) comprises a base plate (501), a receiving groove is formed on the base plate (501), a drainage pipeline for discharging liquid is arranged at the receiving groove, the drainage pipeline extends to the outside of the base plate (501) and is controlled to be on and off by a discharge valve and a plug.

3. The modular power unit for a railway locomotive according to claim 2, characterized in that: The power unit (2) comprises a generator, the rotor shaft of the generator is coaxially rigidly connected to the output shaft of the engine; a water cooling pipe structure is formed on the outer side of the generator, and the water cooling pipe structure is connected to the radiator of the cooling module (3).

4. The modular power unit for a railway locomotive according to claim 1, characterized in that: The cooling module (3) comprises a fan, which is placed in an air duct (311) surrounded by a radiator and an end plate (306), and the air inlet end of the air duct (311) is connected to the inner cavity of the whole structure, and the air outlet end of the air duct (311) faces the outside of the whole structure; a mounting seat is arranged at the lower end of the air duct (311), the area of ​​the mounting seat is larger than the aperture of the air duct (311), and a plurality of longitudinal sealing plates (307) are arranged at intervals on the outer side wall of the air duct (311), and the sealing plates (307) extend and connect to the surface of the mounting seat.

5. The modular power unit for a railway locomotive according to claim 1 or 4, characterized in that: A plurality of liquid cooling tubes are formed on the radiator, and the cooling medium in the liquid cooling tubes circulates and absorbs heat from the power unit (2) and then reaches the radiator for heat exchange.

6. The modular power unit for a railway locomotive according to claim 1, characterized in that: The air intake module (4) comprises an air intake duct (404), a purification component is arranged at the front end of the air intake duct (404), and the air intake duct (404) extends to the power unit (2) and is connected to the air inlet of the power unit (2).

7. The modular power unit for a railway locomotive according to claim 6, characterized in that: The purification component comprises a front filter element (402) and an air filter element (403) which are arranged in sequence.

8. The modular power unit for a railway locomotive according to claim 7, characterized in that: The purification component includes an air intake box (401), and the front filter element (402) and the air filter element (403) are both installed on the air intake box (401); and a water accumulation structure and a drainage structure (406) are formed inside the air intake box (401) to filter and discharge the moisture entering the air intake box (401).

9. The modular power unit for a railway locomotive according to claim 1, characterized in that: The whole machine structure (1) comprises a main frame and a panel arranged on the main frame, and an openable observation window (103) or an inspection door (104) is arranged at a corresponding installation position on the panel.

10. The modular power unit for a railway locomotive according to claim 9, characterized in that: The panel is also provided with a climbing ladder (102) and a maintenance manhole (101) for maintenance.

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