CN113928345A - Cooling system for integrated unit under hybrid power locomotive - Google Patents
Cooling system for integrated unit under hybrid power locomotive Download PDFInfo
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- CN113928345A CN113928345A CN202111414913.4A CN202111414913A CN113928345A CN 113928345 A CN113928345 A CN 113928345A CN 202111414913 A CN202111414913 A CN 202111414913A CN 113928345 A CN113928345 A CN 113928345A
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- 238000001816 cooling Methods 0.000 title claims abstract description 151
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 317
- 238000007872 degassing Methods 0.000 claims abstract description 29
- 230000001502 supplementing effect Effects 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 238000005192 partition Methods 0.000 description 11
- 230000010354 integration Effects 0.000 description 7
- 239000006096 absorbing agent Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C7/00—Other locomotives or motor railcars characterised by the type of motive power plant used; Locomotives or motor railcars with two or more different kinds or types of motive power
- B61C7/04—Locomotives or motor railcars with two or more different kinds or types of engines, e.g. steam and IC engines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a cooling system for an integrated unit under a hybrid locomotive, which comprises a high-temperature water cooling circulation system, a low-temperature water cooling circulation system, an air cooling control integrated system, a degassing and water supplementing subsystem and a power integrated unit control system, wherein the air cooling control integrated system comprises a water radiator, and a high-temperature water flow channel and a low-temperature water flow channel are arranged in the water radiator; a high-temperature water pipeline is arranged between the high-temperature water cooling circulation system and the air cooling control integrated system; and a low-temperature water pipeline is arranged between the low-temperature water cooling circulation system and the air cooling control integrated system. The cooling system for the integrated unit under the hybrid locomotive meets the heat dissipation and control requirements of the integrated unit under the hybrid locomotive, so that all parts of the power integrated unit are kept within a normal working temperature range under all operating conditions.
Description
Technical Field
The invention relates to a heat exchange system of a hybrid locomotive, in particular to a cooling system for an integrated unit under a hybrid locomotive.
Background
In recent years, with the increasing social requirements for energy conservation and environmental protection, the industrial direction in the rail transit field is also regulated, and a locomotive using hybrid power as power traction is invented. On a non-electrified railway, the hybrid power provides an energy-saving and environment-friendly power solution for rail transit vehicles, and is a mainstream mode of rail transit traction power in a certain period in the future. The hybrid locomotive takes a diesel engine and a power battery as power, can realize three traction modes of hybrid traction, diesel engine traction and pure power battery traction, and can adopt a pure electric mode to meet the emission requirement when running under urban conditions, tunnels and other road conditions; the hybrid power mode is adopted to meet the requirement of large power under the working conditions of heavy load, acceleration, long and large ramps and the like; the power battery can be charged and stored with energy under the operating conditions of idling, braking and the like.
The hybrid power integrated unit is a key component for realizing oil-electricity hybrid driving of a hybrid power locomotive, and mainly integrates components such as a diesel engine, a hybrid box, a motor (with traction and power generation functions), a converter, a gearbox, a cooling system, an electric control system, a power battery pack (independently installed on a locomotive body and with power supply and energy storage functions) and the like for the hybrid power integrated unit installed under the locomotive. When the hybrid power integrated unit works, parts such as a diesel engine, a motor, a converter, a gearbox and the like can generate a large amount of heat, so that the working temperature of the parts of the hybrid power locomotive is increased, and the working temperature easily exceeds the normal working range of each part of the hybrid power locomotive.
Disclosure of Invention
The invention discloses a cooling system for an integrated unit under a hybrid locomotive, which is used for meeting the requirements of heat dissipation and control of the integrated unit under the hybrid locomotive, so that all parts of a power integrated unit are kept within a normal working temperature range under all operating conditions.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a cooling system for an integrated unit under a hybrid power locomotive comprises a high-temperature water cooling circulation system, a low-temperature water cooling circulation system, an air cooling control integrated system, a gas and water removal subsystem and a power integrated unit control system, wherein the air cooling control integrated system comprises a water radiator, a high-temperature water flow channel and a low-temperature water flow channel are arranged in the water radiator, and the high-temperature water flow channel and the low-temperature water flow channel are arranged in parallel from top to bottom; a high-temperature water pipeline is arranged between the high-temperature water cooling circulation system and the air cooling control integrated system, and high-temperature water in the high-temperature water pipeline exchanges heat in the high-temperature water flow channel; and a low-temperature water pipeline is arranged between the low-temperature water cooling circulation system and the air cooling control integrated system, and low-temperature water in the low-temperature water pipeline exchanges heat in the low-temperature water flow channel.
Furthermore, the air-cooled control integrated system further comprises an air-air intercooler and a cooling fan set, the water radiator and the air-air intercooler are arranged side by side from left to right, the cooling fan set adopts an air suction type cooling mode, and an air outlet of the cooling fan set is opposite to the high-temperature water cooling circulation system.
Furthermore, the two sides of the low-temperature water flow channel are respectively communicated with a low-temperature water return cavity, a low-temperature water outlet cavity and a low-temperature water inlet cavity, the low-temperature water outlet cavity and the low-temperature water inlet cavity are arranged on the same side of the low-temperature water flow channel, and the low-temperature water return cavity and the low-temperature water outlet cavity are respectively located on the two sides of the length direction of the water radiator.
Further, the cooling fan set comprises a fan motor and a cooling fan, and the fan motor is used for driving the cooling fan to rotate; and a spiral water channel is arranged outside the fan motor.
Furthermore, the low-temperature water cooling circulation system comprises a low-temperature water pump, a fan control submodule and a variable flow control submodule, the fan control submodule, the variable flow control submodule and the low-temperature water pump form a series circuit and then are connected with the water radiator in series, one end of the low-temperature water pipeline is communicated with the low-temperature water pump, and the other end of the low-temperature water pipeline is communicated with the water radiator.
Furthermore, the fan control submodule comprises a first fan motor, a second fan motor, a first fan controller and a second fan controller, and the first fan motor and the second fan motor form a series branch and then are respectively connected with the first fan controller and the second fan controller in parallel.
Furthermore, the current transformation control submodule comprises a first motor, a second motor, a first current transformer and a second current transformer, and the first motor and the second motor form a series branch and then are connected in parallel with the series branch formed by the first current transformer and the second current transformer.
Furthermore, the high-temperature water cooling circulation system comprises a diesel engine, an oil-water heat exchanger and an external water temperature control valve, wherein the external water temperature control valve and the high-temperature water flow channel in the water radiator form a parallel branch circuit, and then are connected with the high-temperature water cooling circulation system through the high-temperature water pipeline to form a series loop.
Furthermore, the degassing and water supplementing subsystem comprises an expansion water tank, and a high-temperature water cooling circulation system water supplementing pipe and a high-temperature water cooling circulation system degassing pipe are arranged between the expansion water tank and the high-temperature water cooling circulation system; and a low-temperature water cooling circulation system water supplementing pipe and an air cooling control integrated system degassing pipe are arranged between the expansion water tank and the low-temperature water cooling circulation system.
The cooling system for the integrated unit under the hybrid power locomotive has the advantages that: the high-temperature water cooling circulation system and the low-temperature water cooling circulation system are combined with each other to form a double-pump double-circulation water cooling technology, a high-temperature water flow channel and a low-temperature water flow channel parallel composite structure design, intelligent control and other technologies, the integration level is high, the structure is compact, auxiliary power consumption can be reduced, noise is reduced, and development requirements of the locomotive on miniaturization and light weight of parts are met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structural arrangement of a cooling system for an integrated unit under a hybrid locomotive disclosed by the present invention;
FIG. 2 is a schematic diagram illustrating the operation of the cooling system for an integrated unit under a hybrid vehicle according to the present disclosure;
FIG. 3 is a schematic structural diagram of an air-cooling control integrated system in a cooling system for an integrated unit under a hybrid vehicle according to the present disclosure;
FIG. 4 is a schematic view of a connection structure between a fan motor and a spiral water channel in a cooling system for an integrated unit under a hybrid vehicle according to the present disclosure;
FIG. 5 is a schematic view of a connection relationship between a water radiator, a first fan motor, a second fan motor, and an air-to-air intercooler in a cooling system for a hybrid electric vehicle lower integrated unit according to the present disclosure;
FIG. 6 is a schematic diagram of a water radiator in a cooling system for an integrated unit under a hybrid vehicle according to the present disclosure;
FIG. 7 is a partial schematic view of portion A of FIG. 6;
fig. 8 is a schematic diagram illustrating a control principle of a cooling control integrated system in a cooling system for an integrated unit under a hybrid locomotive disclosed by the invention.
In the figure: 11. a diesel engine; 111. a high-temperature water pump of a diesel engine; 112. a diesel engine control unit; 12. a water temperature control valve is arranged outside; 13. an oil-water heat exchanger; 14. a high temperature water line; 21. a low-temperature water pump; 22. a fan control submodule; 221. a first fan motor; 222. a second fan motor; 223. a first fan controller; 224. a second fan controller; 23. a variable flow control submodule; 231. a first motor; 232. a second motor; 233. a first converter; 234. a second converter; 24. a low temperature water line; 31. a water radiator; 311. a separating transverse plate; 3111. a high temperature water flow channel; 3112. a low temperature water flow channel; 3113. a cooling air flow passage; 312. a first partition plate; 3121. a high-temperature water inlet cavity; 3122. a low-temperature water return cavity; 313. a second partition plate; 3131. a high-temperature water outlet cavity; 3132. a low-temperature water outlet cavity; 3133. a low-temperature water inlet cavity; 314. a third partition plate; 32. an air-air intercooler; 33. a cooling fan set; 331. a fan motor; 332. a cooling fan; 333. a motor housing; 3331. a water inlet; 3332. a water outlet; 334. an air duct; 335. a spiral water channel; 34. a cooling frame; 35. a charge air line; 41. an expansion tank; 42. a water replenishing pipe of a high-temperature water cooling circulation system; 43. a high-temperature water cooling circulation system degassing pipe; 44. a low-temperature water cooling circulation system water replenishing pipe; 451. a high-temperature side degassing pipe of the water radiator; 452. a low-temperature side degassing pipe of the water radiator; 5. an integrated unit frame; 6. a power integration unit control box; 7. a mixing box; 8. a gearbox; 81. a transmission control unit; 9. a dust screen; 101. a shock absorber; 102. a stopper; 20. a low temperature water temperature sensor; 30. and a power battery pack.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 8 of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
With reference to fig. 1 and 2, a cooling system for an integrated unit under a hybrid power vehicle includes a high-temperature water cooling circulation system, a low-temperature water cooling circulation system, an air cooling control integrated system, a degassing and water replenishing subsystem, an integrated unit frame 5, and a power integrated unit control system.
The integrated unit frame 5 is set to be U-shaped, the high-temperature water cooling circulation system, the low-temperature water cooling circulation system, the air cooling control integrated system and the degassing and water supplementing subsystem are all installed inside the integrated unit frame 5, the air cooling control integrated system is arranged on the opening side of the integrated unit frame 5, and the integrated unit frame 5 is hoisted under a frame of the hybrid power locomotive.
Referring to fig. 1 and 2, the high-temperature water cooling circulation system includes a diesel engine 11, an external water temperature control valve 12, an oil-water heat exchanger 13, and a high-temperature water pipeline 14, in which the diesel engine 11 includes a diesel engine high-temperature water pump 111 and a diesel engine control unit 112, and the diesel engine high-temperature water pump 111 and the diesel engine control unit 112 are integrally disposed. A mixing box 7 and a gearbox 8 are arranged between the diesel engine 11 and the oil-water heat exchanger 13, the diesel engine 11 is connected with the input end of the mixing box 7, the output end of the mixing box 7 is connected with the input end of the gearbox 8, and the oil-water heat exchanger 13 is arranged on the side wall of the gearbox 8. When the diesel engine 11 works, the high-temperature water pump 111 of the diesel engine drives high-temperature water to firstly enter the diesel engine 11 to cool the diesel engine 11, and then enters the oil-water heat exchanger 13 through the high-temperature water pipeline 14 to cool the gearbox oil of the gearbox 8, and the cycle is repeated.
Referring to fig. 1 and 2, the air cooling control integrated system includes a water radiator 31, an air-air intercooler 32, a cooling fan set 33, a cooling frame 34, and a pressurized air pipeline 35, the external water temperature control valve 12 is disposed between the oil-water heat exchanger 13 and the diesel engine 11, and the external water temperature control valve 12 controls whether high-temperature water flows through the water radiator 31 according to a set opening temperature, so as to dissipate heat to the atmosphere. When the diesel engine 11 works, the supercharger of the diesel engine 11 drives high-temperature pressurized air to enter the air-air intercooler 32 for cooling, the cooled low-temperature pressurized air enters a cylinder of the diesel engine through the pressurized air pipeline 35 and is mixed with diesel oil to burn and apply work to form tail gas, and the tail gas is discharged into the atmosphere after being processed.
The cooling frame 34 is a rectangular frame with openings at the front and rear sides, the water radiator 31 and the air-air intercooler 32 are arranged in the cooling frame 34 in parallel at the left and right sides, the two groups of cooling fan groups 33 are arranged, and the two groups of cooling fan groups 33 simultaneously ventilate and radiate the water radiator 31 and the air-air intercooler 32. The cooling fan set 33 adopts an air suction type cooling mode, and an air outlet of the cooling fan set 33 is over against the diesel engine 11, the hybrid box 7 and the gearbox 8.
Each cooling fan set 33 comprises a fan motor 331 and a cooling fan 332, and the fan motor 331 can provide a power source for the cooling fan 332 to drive the cooling fan 332 to rotate; the cooling fan 332 is covered with an air duct 334, the air duct 334 is a cylinder with openings on two sides, the air duct 334 and the cooling frame 34 are welded together, and the air duct 334 plays a role in guiding air in the air cooling control integrated system.
The dustproof net 9 is installed on the air inlet side of the water radiator 31 and the air-air intercooler 32, cooling air passes through the dustproof net 9 under the driving of the cooling fan 332 and then respectively enters the air-air intercooler 32 and the water radiator 31, and then is blown to the diesel engine 11, the mixing box 7 and the gearbox 8 through the air duct in the cooling frame 34, the air duct 334, the cooling fan 332 and the fan motor 331 in sequence, and the heat dissipation requirements of the mixing box 7 and the gearbox 8 can be met in the pure electric mode; in the internal combustion mode and the hybrid mode, the high-temperature water cooling subsystem can be assisted to dissipate heat of the diesel engine 11, the hybrid box 7 and the gearbox 8.
Referring to fig. 1 and 3, two vibration absorbers 101 are respectively installed on the left side and the right side of the cooling frame 34, the two vibration absorbers 101 located on the same side of the cooling frame 34 are arranged side by side, a stopper 102 is fixedly installed on the outer side of each vibration absorber 101, and the stopper 102 can limit the maximum displacement of the vibration absorber 101 to avoid damaging the vibration absorbers 101.
Referring to fig. 3 and 4, the fan motor 331 includes a motor core and a motor housing 333, the motor housing 333 covers the motor core, a spiral water channel 335 is disposed inside the motor housing 333, the spiral water channel 335 is disposed around a circumferential direction of the motor housing 333, a water inlet 3331 and a water outlet 3332 are disposed on the motor housing 333, the water inlet 3331 is disposed on a side close to a front end of the motor housing 333, the water outlet 3332 is disposed on a side close to a rear end of the motor housing 333, the water inlet 3331 and the water outlet 3332 are respectively communicated with the spiral water channel 335, and when the low-temperature water cooling circulation system operates, the low-temperature water flows into the spiral water channel 335 to cool the fan motor 331.
Referring to fig. 5 and 6, the water heat sink 31 includes a core body of the water heat sink 31, a partition horizontal plate 311 is fixedly disposed inside the core body of the water heat sink 31, the partition horizontal plate 311 is an aluminum alloy plate, and the aluminum alloy plate partitions the inside of the core body of the water heat sink 31 into a high-temperature water flow channel 3111 and a low-temperature water flow channel 3112 which are disposed side by side up and down. The upper and lower sides of the partition horizontal plate 311 are further provided with cooling air flow passages 3113, respectively, and the high temperature water flow passages 3111 and the low temperature water flow passages 3112 are arranged at equal intervals in a staggered manner with the cooling air flow passages 3113.
With reference to fig. 6 and 7, two sides of the high-temperature water flow passage 3111 are respectively communicated with a high-temperature water inlet cavity 3121 and a high-temperature water outlet cavity 3131; the two sides of the low-temperature water flow channel 3112 are respectively communicated with a low-temperature water return cavity 3122, a low-temperature water outlet cavity 3132 and a low-temperature water inlet cavity 3133, the low-temperature water outlet cavity 3132 and the low-temperature water inlet cavity 3133 are arranged on the same side of the low-temperature water flow channel 3112, the high-temperature water inlet cavity 3121 and the low-temperature water return cavity 3122 are located on the same side of the core body of the water radiator 31, the high-temperature water inlet cavity 3121 and the low-temperature water return cavity 3122 are separated by a first partition plate 312, the low-temperature water inlet cavity 3133 is located between the high-temperature water outlet cavity 3131 and the low-temperature water outlet cavity 3132, and the low-temperature water inlet cavity 3133 and the high-temperature water outlet cavity 3131 are separated by a second partition plate 313.
Referring to fig. 6 and 7, a third partition plate 314 is disposed between the low temperature water inlet cavity 3133 and the low temperature water outlet cavity, the third partition plate 314 is parallel to the aluminum alloy plate, wherein the low temperature water inlet cavity 3133 is communicated with the low temperature water pipe 24, and the low temperature water outlet cavity 3132 is communicated with the outside; the low-temperature cooling water enters the low-temperature water flow passage through the low-temperature water inlet cavity 3133 of the water radiator 31 for primary heat exchange, the cooled cooling water enters the low-temperature water flow passage again through the low-temperature water return cavity 3122 for secondary heat exchange, and the cooled cooling water flows out through the low-temperature water outlet cavity 3132.
The diesel engine high temperature water pump 111 drives high temperature water to cool the water jacket of the cylinder of the diesel engine 11 and then enters the external water temperature control valve 12, when the temperature of the high temperature water is higher than the opening temperature of the external water temperature control valve 12, the high temperature water enters the high temperature water flow channel 3111 of the water radiator 31 through the high temperature water inlet cavity 3121 through the high temperature water pipeline 14, exchanges heat with the cooling air flow channel 3113 inside the high temperature water flow channel 3111, and then flows out through the high temperature water outlet cavity 3131. The low-temperature cooling water enters a part of the low-temperature water flow passage 3112 through the low-temperature water inlet cavity 3133 of the water radiator 31 to perform a first heat exchange with the cooling air flow passage 3113, the cooled cooling water enters another part of the low-temperature water flow passage 3112 again through the low-temperature water return cavity 3122 to perform a second heat exchange, and the cooled cooling water flows out through the low-temperature water outlet cavity 3132. The water radiator 31 is made of all aluminum alloy, adopts a parallel composite structure, can ventilate and radiate low-temperature water and high-temperature water at the same time, and has a compact structure.
With reference to fig. 2 and 8, the low-temperature water cooling circulation system includes a low-temperature water pump 21, a fan control submodule 22, an inverter control submodule 23, and a low-temperature water pipe 24, wherein the fan control submodule 22 and the inverter control submodule 23 respectively form series-parallel-serial branches, and then the series-parallel-serial branches are connected with the low-temperature water pump 21 and the low-temperature water passage 3112 of the water radiator 31 through the low-temperature water pipe 24 to form a series-connected loop. By adopting the loop arrangement mode, the design of the low-temperature water pump 21 with small flow and small lift can be met, so that the power consumption and the overall dimension of the low-temperature water pump 21 are reduced.
With reference to fig. 2 and 8, the fan control sub-module 22 includes a first fan motor 221, a second fan motor 222, a first fan controller 223, and a second fan controller 224, the first fan motor 221 and the second fan motor 222 form a serial branch and then are respectively connected in parallel with the first fan controller 223 and the second fan controller 224, the first fan controller 223 and the second fan controller 224 are powered by the direct current of the power battery pack 30 equipped on the vehicle body, and rectify the direct current into the alternating current to supply the alternating current to the first fan motor 221 and the second fan motor 222. The conversion control submodule 23 includes a first motor 231, a second motor 232, a first converter 233, and a second converter 234, and the first motor 231 and the second motor 232 form a series branch and then are connected in parallel with a series branch formed by the first converter 233 and the second converter 234.
With reference to fig. 2 and 8, the low temperature water pipeline 24 is further provided with a low temperature water temperature sensor 20, the low temperature water temperature sensor 20 is installed on the water inlet side of the second motor 232, and the low temperature water temperature sensor 20 can collect a low temperature water temperature signal in real time.
Referring to fig. 2, the power integration unit control system includes a power integration unit control box 6, the power integration unit control box 6 extracts a high temperature water temperature signal and a temperature signal of pressurized air from a diesel engine control unit 112 through a CAN bus in real time, a transmission control unit 81 is provided on a transmission 8, and the power integration unit control box 6 extracts a transmission oil temperature signal from the transmission control unit 81 through the CAN bus. Under different operating environments and operating conditions of the hybrid locomotive, the first fan controller 223 and the second fan controller 224 respectively control the rotating speeds of the first fan motor 221 and the second fan motor 222 according to a high-temperature water temperature signal, a low-temperature water temperature signal, a pressurized air temperature signal and a transmission oil temperature signal which are acquired in real time according to control logic, the rotating speed of the cooling fan 332 can be dynamically adjusted, the auxiliary power consumption can be reduced, the noise is reduced, the adaptability of the locomotive to the environment is improved, and the requirements of energy conservation and environmental protection of the locomotive are met.
Referring to fig. 2, the degassing and water supplementing subsystem includes an expansion water tank 41, a high-temperature water cooling circulation system water supplementing pipe 42 and a high-temperature water cooling circulation system degassing pipe 43 are arranged between the expansion water tank 41 and the high-temperature water cooling circulation system, a low-temperature water cooling circulation system water supplementing pipe 44 and a wind cooling control integrated system degassing pipe are arranged between the expansion water tank 41 and the low-temperature water cooling circulation system, the wind cooling control integrated system degassing pipe includes a water radiator high-temperature side degassing pipe 451 and a water radiator low-temperature side degassing pipe 452, and functions of automatic exhaust, automatic water supplementing, pressure stabilization in the subsystem and the like of the system are achieved.
Referring to fig. 2, the bottom wall of the expansion tank 41 is provided with two water outlets, one end of the low-temperature water supply pipe of the low-temperature water subsystem is arranged through the water outlets and communicated with the inside of the expansion tank 41, and the other end is communicated with the low-temperature water pipeline 24; one end of the high-temperature water cooling circulation system water replenishing pipe 42 penetrates through the water outlet and is communicated with the interior of the expansion water tank 41, and the other end of the high-temperature water cooling circulation system water replenishing pipe is communicated with the high-temperature water pipeline 14. A degassing port is formed in the side wall of the expansion water tank 41 close to the top wall, one end of a degassing pipe 43 of the high-temperature water cooling circulation system penetrates through the degassing port and is communicated with the inside of the expansion water tank 41, and the other end of the degassing pipe is communicated with the diesel engine 11; one end of the high-temperature side degassing pipe of the water radiator 31 penetrates through the degassing port and is communicated with the inside of the expansion water tank 41, the other end of the high-temperature side degassing pipe of the water radiator 31 is communicated with the high-temperature cavity water outlet cavity of the water radiator 31, one end of the low-temperature side degassing pipe of the water radiator 31 penetrates through the degassing port and is communicated with the inside of the expansion water tank 41, and the other end of the low-temperature side degassing pipe of the water radiator 31 is communicated with the low-temperature water return cavity 3122 of the water radiator 31.
The implementation principle of the application is as follows: the high-temperature water cooling circulation system and the low-temperature water cooling circulation system are combined with each other to form a double-pump double-circulation water cooling technology, a fan motor 331 water cooling permanent magnet design, a water radiator 31 parallel composite structure design, a fan intelligent control technology and the like, the integration level is high, the structure is compact, auxiliary power consumption can be reduced, noise is reduced, and the development requirements of the locomotive on miniaturization and light weight of parts are met.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The cooling system for the integrated unit under the hybrid power locomotive is characterized by comprising a high-temperature water cooling circulation system, a low-temperature water cooling circulation system, an air cooling control integrated system, a degassing and water supplementing subsystem and a power integrated unit control system, wherein the air cooling control integrated system comprises a water radiator (31), a high-temperature water flow channel (3111) and a low-temperature water flow channel (3112) are arranged in the water radiator (31), and the high-temperature water flow channel (3111) and the low-temperature water flow channel (3112) are arranged side by side from top to bottom; a high-temperature water pipeline (14) is arranged between the high-temperature water cooling circulation system and the air cooling control integrated system, and high-temperature water in the high-temperature water pipeline (14) exchanges heat in a high-temperature water flow channel (3111); a low-temperature water pipeline (24) is arranged between the low-temperature water cooling circulation system and the air cooling control integrated system, and low-temperature water in the low-temperature water pipeline (24) exchanges heat in a low-temperature water flow channel (3112).
2. The cooling system for the hybrid power vehicle lower integrated unit as claimed in claim 1, wherein the air cooling control integrated system further comprises an air-air intercooler (32) and a cooling fan set (33), the water radiator (31) and the air-air intercooler (32) are arranged side by side from left to right, the cooling fan set (33) adopts an air suction type cooling mode, and an air outlet of the cooling fan set (33) faces the high-temperature water cooling circulation system.
3. The cooling system for an integrated unit under a hybrid vehicle according to claim 2, wherein the low-temperature water flow passage (3112) is connected to a low-temperature water return chamber (3122), a low-temperature water outlet chamber (3132) and a low-temperature water inlet chamber (3133) at two sides thereof, the low-temperature water outlet chamber (3132) and the low-temperature water inlet chamber (3133) are disposed at the same side of the low-temperature water flow passage (3112), and the low-temperature water return chamber (3122) and the low-temperature water outlet chamber (3132) are disposed at two sides of the water radiator (31) in the length direction thereof.
4. The cooling system for the integrated unit under the hybrid locomotive according to claim 2, wherein the cooling fan set (33) comprises a fan motor (331) and a cooling fan (332), the fan motor (331) is used for driving the cooling fan (332) to rotate; the fan motor (331) is externally provided with a spiral water channel (335).
5. The cooling system for the integrated unit under the hybrid locomotive according to claim 2, wherein the low-temperature water cooling circulation system comprises a low-temperature water pump (21), a fan control submodule (22) and a variable flow control submodule (23), the fan control submodule (22), the variable flow control submodule (23) and the low-temperature water pump (21) form a series loop and then are connected with a water radiator (31) in series, and one end of the low-temperature water pipeline (24) is communicated with the low-temperature water pump (21) while the other end is communicated with the water radiator (31).
6. The cooling system for the integrated unit under the hybrid locomotive according to claim 5, wherein the fan control submodule (22) comprises a first fan motor (221), a second fan motor (222), a first fan controller (223) and a second fan controller (224), and the first fan motor (221) and the second fan motor (222) form a serial branch and are then respectively connected with the first fan controller (223) and the second fan controller (224) in parallel.
7. The cooling system for the hybrid power locomotive under-vehicle integrated unit as claimed in claim 5, wherein said conversion control submodule (23) comprises a first electric machine (231), a second electric machine (232), a first converter (233) and a second converter (234), said first electric machine (231) and said second electric machine (232) are connected in parallel with a series branch formed by said first converter (233) and said second converter (234).
8. The cooling system for the hybrid power vehicle-under integrated unit as claimed in claim 1, wherein the high temperature water cooling circulation system comprises a diesel engine (11), an oil-water heat exchanger (13) and an external water temperature control valve (12), and after the external water temperature control valve (12) and a high temperature water flow passage (3111) of a water radiator (31) form a parallel branch, the parallel branch is connected with the high temperature water cooling circulation system through a high temperature water pipeline (61) to form a series loop.
9. The cooling system for the integrated unit under the hybrid locomotive according to claim 1, wherein the degassing and water replenishing subsystem comprises an expansion water tank (41), and a high-temperature water cooling circulation system water replenishing pipe (42) and a high-temperature water cooling circulation system degassing pipe (43) are arranged between the expansion water tank (41) and the high-temperature water cooling circulation system; and a low-temperature water cooling circulation system water supplementing pipe (44) and an air cooling control integrated system degassing pipe are arranged between the expansion water tank (41) and the low-temperature water cooling circulation system.
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| CN114475671A (en) * | 2022-02-24 | 2022-05-13 | 中车大连机车研究所有限公司 | Hybrid power integrated system of motor train unit |
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