Lightweight traction control system of molten steel locomotive

Abstract

The utility model discloses a lightweight traction control system of a molten steel locomotive. The lightweight traction control system comprises a cabinet body, a traction inversion module, an auxiliary inversion module, a traction control unit, an auxiliary control unit, a water circulation cooling system and a cooling fan, the traction control system is provided with the water circulation cooling system and the cooling fan, and the heat dissipation performance of the traction control system can be improved in a water cooling heat dissipation and air cooling heat dissipation mode, so that normal use of the traction control system in a high-temperature environment is better guaranteed; in addition, modular design is adopted, position optimization design is carried out on the power modules such as the traction inversion module and the auxiliary inversion module, the size of the traction control system is reduced, a quick connector is installed and can be quickly inserted and pulled, parts can be replaced without discharging cooling liquid in a cooling loop, and the cost is reduced. Therefore, the convenient maintenance effect is achieved, and the lightweight design of the traction control system is met.

Description

Technical Field

[0001] The utility model relates to the technical field of traction control, in particular to a lightweight traction control system for a molten steel locomotive. Background Art

[0002] The molten steel locomotive is a locomotive used to transport molten steel, which can effectively improve the transportation efficiency. Among them, the molten steel locomotive is equipped with a traction control system, which is mainly used to control the output of power and electric energy that meet the traction requirements of the locomotive; the traction control system usually includes functional modules such as traction inverter module, auxiliary inverter module, traction control unit, and auxiliary control unit. The traction control unit (TCU) is used to control the IGBT of the traction inverter module to obtain torque and power control that meets the performance requirements of the technical specifications and contracts, and the auxiliary control unit (ACU) is used to control the IGBT of the auxiliary inverter module to obtain auxiliary electric energy output that meets the traction requirements of the locomotive.

[0003] The above-mentioned functional modules such as the traction inverter module, auxiliary inverter module, traction control unit, and auxiliary control unit are arranged in a cabinet, and the heat dissipation of the traction control system mainly relies on fans, exhaust fans and other devices. The overall heat dissipation is poor, which can easily affect the normal use of the traction control system in a high temperature environment. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a lightweight traction control system for a molten steel locomotive, which can solve the above technical problems.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a lightweight traction control system for a molten steel locomotive, comprising a cabinet, a traction inverter module, an auxiliary inverter module, a traction control unit and an auxiliary control unit, the traction control unit is connected to the traction inverter module, the auxiliary control unit is connected to the auxiliary inverter module, the lightweight traction control system for a molten steel locomotive also includes: a water circulation cooling system and a cooling fan, the traction inverter module, the auxiliary inverter module, the traction control unit, the auxiliary control unit, the water circulation cooling system and the cooling fan are all arranged in the cabinet.

[0008] Preferably, a transverse partition and a vertical partition are provided in the cabinet, and the transverse partition and the vertical partition are arranged in a cross shape, and the transverse partition and the vertical partition divide the interior of the cabinet into a first receiving chamber, a second receiving chamber, a third receiving chamber and a fourth receiving chamber.

[0009] Preferably, the traction inverter module and the traction control unit are arranged in the third receiving chamber, and the auxiliary inverter module and the auxiliary control unit are arranged in the fourth receiving chamber.

[0010] Preferably, the cooling fan is arranged in the first receiving chamber.

[0011] Preferably, the water circulation cooling system includes a water pump, a water tank and a heat exchanger. The water pump and the heat exchanger are arranged in a first receiving chamber, the water tank is arranged in a second receiving chamber, a cooling pipeline is provided in the cabinet, the water outlet of the water tank is connected to the water inlet of the water pump, the water outlet of the water pump is connected to the water inlet of the cooling pipeline, the water outlet of the cooling pipeline is connected to the water inlet of the heat exchanger, and the water outlet of the heat exchanger is connected to the water inlet of the water tank.

[0012] Preferably, the water pump is connected to a flow rate sensor.

[0013] Preferably, the lightweight traction control system for molten steel locomotive further includes a reactor, and the reactor is disposed in the second accommodating cavity.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a lightweight traction control system for a molten steel locomotive, which has the following beneficial effects: the utility model is provided with a water circulation cooling system and a cooling fan, and the heat dissipation performance of the traction control system of the utility model can be improved by the water cooling + air cooling method, thereby better ensuring the normal use of the traction control system in a high temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a structural schematic diagram of a lightweight traction control system for a molten steel locomotive.

[0017] The numbers in the figure are: 1 cabinet, 2 traction inverter module, 3 auxiliary inverter module, 4 cooling fan, 5 horizontal partition, 6 vertical partition, 7 water pump, 8 water tank, 9 heat exchanger, 10 flow rate sensor, 11 reactor, 12 transformer, 13 fuse, 14 110V to 24V power supply module, 15 grounding detection device capacitor, 16 auxiliary output contactor. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides a lightweight traction control system for a molten steel locomotive, comprising a cabinet 1, a traction inverter module 2, an auxiliary inverter module 3, a traction control unit and an auxiliary control unit, wherein the traction control unit is connected to the traction inverter module 2, and the auxiliary control unit is connected to the auxiliary inverter module 3.

[0020] In addition, the lightweight traction control system for molten steel locomotive of the utility model further includes a water circulation cooling system and a cooling fan 4. The traction inverter module 2, the auxiliary inverter module 3, the traction control unit, the auxiliary control unit, the water circulation cooling system and the cooling fan 4 are all arranged in the cabinet 1.

[0021] The power modules such as the traction inverter module 2 and the auxiliary inverter module 3 are composed of IGBT components, a composite busbar, a drive unit, etc. The traction control unit (TCU) is used to control the IGBT of the traction inverter module 2 to obtain torque and power control that meet the performance requirements of the technical specifications and contracts, and the auxiliary control unit (ACU) is used to control the IGBT of the auxiliary inverter module 3 to obtain auxiliary power output that meets the traction requirements of the locomotive. The traction inverter module, auxiliary inverter module, traction control unit, and auxiliary control unit of the utility model are all prior art, and their specific structures and working principles are not described in detail here.

[0022] Preferably, a transverse partition 5 and a vertical partition 6 are provided in the cabinet 1, and the transverse partition 5 and the vertical partition 6 are arranged in a cross shape. The transverse partition 5 and the vertical partition 6 divide the interior of the cabinet 1 into a first accommodating cavity, a second accommodating cavity, a third accommodating cavity and a fourth accommodating cavity. The above method can better utilize the internal space of the cabinet 1.

[0023] Specifically, the first receiving chamber is located above the third receiving chamber, and the first receiving chamber is adjacent to the second receiving chamber on the left and right. The traction inverter module 2 and the traction control unit are arranged in the third receiving chamber, the auxiliary inverter module 3 and the auxiliary control unit are arranged in the fourth receiving chamber, and the cooling fan 4 is arranged in the first receiving chamber.

[0024] Specifically, the water circulation cooling system includes a water pump 7, a water tank 8 and a heat exchanger 9. The water pump 7 and the heat exchanger 9 are arranged in the first receiving chamber, the water tank 8 is arranged in the second receiving chamber, and a cooling pipeline is arranged in the cabinet 1. The cooling pipeline can pass through the inner wall of the cabinet 1, and the cooling pipeline can also pass through the above-mentioned traction inverter module 2, auxiliary inverter module 3 and other functional modules. The water outlet of the water tank 8 is connected to the water inlet of the water pump 7, and the water outlet of the water pump 7 is connected to the water inlet of the cooling pipeline. The water outlet of the circuit is connected to the water inlet of the heat exchanger 9, and the water outlet of the heat exchanger 9 is connected to the water inlet of the water tank 8; it can be understood that the water pump 7 draws the cooling circulating water from the water tank 8 and transports it to the cooling pipeline to perform heat exchange with the cabinet 1, the traction inverter module 2, the auxiliary inverter module 3, etc., that is, to achieve water-cooling heat dissipation and cooling of the cabinet 1, the traction inverter module 2, the auxiliary inverter module 3, etc. The cooling circulating water after heating enters the heat exchanger 9 for cooling, and finally returns to the water tank 8.

[0025] Preferably, the water pump 7 is connected to a flow rate sensor 10 to monitor the flow rate of the cooling circulating water.

[0026] In addition, the lightweight traction control system of the molten steel locomotive of the utility model may also include related components of the traction control system in the prior art, such as the reactor 11, the transformer 12, the fuse 13, the 110V to 24V power supply module 14, the grounding detection device capacitor 15, and the auxiliary output contactor 16. Specifically, the reactor 11 and the transformer 12 are arranged in the second receiving cavity of the cabinet 1, the auxiliary output contactor 16 is arranged in the third receiving cavity, and the fuse 13, the 110V to 24V power supply module 14, and the grounding detection device capacitor 15 are arranged in the fourth receiving cavity.

[0027] Specifically, there are two traction inverter modules 2, which are arranged up and down, and two traction inverter modules (including chopper step-down branches) are used to power four traction motors (rack control mode). The power modules such as the traction inverter module 2 and the auxiliary inverter module 3 are connected to the peripheral control circuit through connectors, and are easily accessible to various external connection components (such as main circuit terminals, control connectors, quick connectors, etc.). By opening the cabinet door of the cabinet 1, each converter module can be easily disassembled and maintained.

[0028] In addition, the cooling air path of the cooling fan 4 may specifically adopt an air path structure in which air is taken in from the side of the locomotive running direction and air is discharged from the side below the cabinet.

[0029] Compared with the prior art, the utility model provides a lightweight traction control system for a molten steel locomotive, which has the following beneficial effects: the utility model is provided with a water circulation cooling system and a cooling fan, and the heat dissipation performance of the traction control system of the utility model can be improved by the water cooling + air cooling method, thereby better ensuring the normal use of the traction control system in a high temperature environment; in addition, the utility model adopts a modular design, and the size of the traction control system is reduced by optimizing the position of each power module such as the traction inverter module and the auxiliary inverter module, and is equipped with a quick connector, which can be quickly plugged in and out, and components can be replaced without discharging the coolant in the cooling circuit, thereby achieving a convenient maintenance effect and meeting the lightweight design of the traction control system.

[0030] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightweight traction control system for a molten steel locomotive, comprising a cabinet, a traction inverter module, an auxiliary inverter module, a traction control unit and an auxiliary control unit, wherein the traction control unit is connected to the traction inverter module, and the auxiliary control unit is connected to the auxiliary inverter module. It is characterized in that Also includes: The water circulation cooling system and the cooling fan, the traction inverter module, the auxiliary inverter module, the traction control unit, the auxiliary control unit, the water circulation cooling system and the cooling fan are all arranged in the cabinet.

2. The lightweight traction control system for molten steel locomotive according to claim 1, Features: A transverse partition and a vertical partition are provided in the cabinet, and the transverse partition and the vertical partition are arranged in a cross shape. The transverse partition and the vertical partition divide the interior of the cabinet into a first receiving chamber, a second receiving chamber, a third receiving chamber and a fourth receiving chamber.

3. The lightweight traction control system for molten steel locomotive according to claim 2, Features: The traction inverter module and the traction control unit are disposed in the third receiving chamber, and the auxiliary inverter module and the auxiliary control unit are disposed in the fourth receiving chamber.

4. The lightweight traction control system for molten steel locomotive according to claim 3, Features: The cooling fan is disposed in the first receiving chamber.

5. The lightweight traction control system for molten steel locomotive according to claim 4, Features: The water circulation cooling system includes a water pump, a water tank and a heat exchanger, the water pump and the heat exchanger are arranged in the first receiving cavity, the water tank is arranged in the second receiving cavity, a cooling pipeline is provided in the cabinet, the water outlet of the water tank is connected to the water inlet of the water pump, the water outlet of the water pump is connected to the water inlet of the cooling pipeline, the water outlet of the cooling pipeline is connected to the water inlet of the heat exchanger, and the water outlet of the heat exchanger is connected to the water inlet of the water tank.

6. The lightweight traction control system for molten steel locomotive according to claim 5, Features: The water pump is connected with a flow rate sensor.

7. The lightweight traction control system for molten steel locomotive according to claim 5, Features: It also includes a reactor, which is arranged in the second accommodating cavity.

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