Traction converter cooling system

Abstract

The invention relates to the technical field of cooling of traction converters of electric locomotives, in particular to a traction converter cooling system. Comprising a main pipeline which comprises a water inlet main pipeline and a water outlet main pipeline; a temperature sensor I and a pressure sensor I are mounted on the water inlet main pipeline, one end of the water inlet main pipeline is connected with the heat dissipation tower, the other end of the water inlet main pipeline is connected with a water inlet branch pipeline of the adjustable power environmental control device, and the water inlet branch pipeline is connected with a water inlet of the water cooling plate through a water inlet connector; one end of the water outlet main pipeline is connected with the heat dissipation tower, the other end of the water outlet main pipeline is connected with a water outlet branch pipeline of the adjustable power environment control device, the water outlet branch pipeline is connected with a water outlet of the water cooling plate through a water outlet connector, and the adjustable power environment control device controls starting and stopping of a fan matrix in the adjustable power environment control device according to changes of air temperature so as to achieve the purpose of reducing the temperature in the cabinet. The water outlet main pipeline is provided with a water pump, a temperature sensor II and a pressure sensor II, and a branch is provided with an expansion water tank. The method is reasonable in design and has good practical application value.

Description

TECHNICAL FIELD

[0001] The present application relates to the cooling technical field of electric locomotive traction converter, in particular to a traction converter cooling system. BACKGROUND

[0003] The existing converter has the following disadvantages: the cabinet wall is provided with holes for heat dissipation, which reduces the air temperature in the cabinet, and the dust is easy to enter the cabinet, which affects the normal work of the device and reduces the service life of the device; the heat dissipation components are arranged on the water-cooled substrate, the water-cooled substrate is internally provided with a flow channel, the cooling medium passes through the flow channel and pipeline and passes through the heat exchange device, and the heat exchange device discharges heat through the cooling fan to achieve the cooling effect; the components on the water-cooled substrate cannot discharge heat to the air through this form; the sealed cabinet uses ordinary environmental control devices to circulate the air temperature in the cabinet, which solves the problem of local high temperature in the sealed cabinet, but when the converter starts, the environmental control device is started, and when the outdoor temperature is very low, the temperature in the cabinet is very low, and the environmental control device is started when the converter starts, which causes energy waste. SUMMARY

[0004] The present application provides a traction converter cooling system, which solves the problem of component heating caused by the increase of the sealing level in the converter, and solves the problem of the environmental control device being started and stopped when the converter is started and stopped.

[0005] The present application is implemented by using the following technical scheme: A traction converter cooling system, comprising a main pipeline, wherein the main pipeline comprises a water inlet main pipeline and a water outlet main pipeline; a temperature sensor I and a pressure sensor I are installed on the water inlet main pipeline, one end of the water inlet main pipeline is connected with a heat dissipation tower, and the other end is connected with a water inlet branch pipeline of an adjustable power environmental control device; the water inlet branch pipeline is connected with a water inlet of a water-cooled plate through a water inlet joint; one end of the water outlet main pipeline is connected with the heat dissipation tower, and the other end is connected with a water outlet branch pipeline of the adjustable power environmental control device; the water outlet branch pipeline is connected with a water outlet of the water-cooled plate through a water outlet joint; a water pump, a temperature sensor II and a pressure sensor II are installed on the water outlet main pipeline, and an expansion tank is installed on a branch pipeline thereof.

[0006] Further preferably, other water-cooled components are connected between the water inlet main pipeline and the water outlet main pipeline.

[0007] Further preferably, the adjustable power environmental control device is connected with the main pipeline through the water inlet branch pipeline and the water outlet branch pipeline.

[0008] Further preferably, a radiator is installed on the adjustable power environmental control device, and a fan matrix is installed on the radiator.

[0009] Further preferably, the temperature sensor I and the pressure sensor I are connected to the water inlet main pipeline at corresponding positions, and the temperature sensor II and the pressure sensor II are connected to the water outlet main pipeline at corresponding positions.

[0010] Further preferably, the number of the fans in the fan matrix is n.

[0011] Further preferably, the n fans are controlled by n channel control switches respectively.

[0012] Further preferably, the n channel control switches are located in a control unit, and the ambient temperature parameter of the control unit is obtained from a cabinet temperature sensor located in the traction converter.

[0013] In application, first, the water pump is opened to draw the cooling liquid from the cooling tower to enter the water outlet main pipeline, and then the cooling liquid enters the water-cooled plate through the water inlet of the water-cooled plate connected by the adjustable power ring control device, and then the cooling liquid enters the water inlet main pipeline through the water outlet of the water-cooled plate and the water outlet branch pipeline, and at the same time, the cooling liquid also enters other water-cooled components and the expansion tank to dissipate heat, and then the cooling liquid flows back to the cooling tower through the water inlet main pipeline, and the temperature sensor I on the water outlet main pipeline and the temperature sensor II on the water inlet main pipeline detect the temperature of the cooling liquid when the water outlet and the water inlet respectively, so as to ensure that there is a normal temperature difference, and to ensure the normal operation of the system and the equipment. When the temperature in the cabinet rises, the real-time temperature detected by the cabinet temperature sensor reaches the set opening temperature K1℃, and the control unit is opened, when the temperature is greater than K1℃, the I channel of the control panel is closed, and the fan M1 is started, when the temperature is greater than K2℃, the II channel of the control panel is closed, and the fan M2 is started, when the temperature is less than K3℃, the II channel of the control panel is disconnected, and the fan M2 is stopped, when the temperature is greater than K3℃, the III channel of the control panel is closed, and the fan M3 is started, when the temperature is less than K3℃, the III channel of the control panel is disconnected, and the fan M3 is stopped, and the same is applied to the subsequent, that is, when the temperature rises by Kx℃, the control panel adds a closed channel, and the fan is increased, when the temperature decreases by Kx℃, the control unit reduces a fan, until the control unit is over-temperature protected when the collected temperature reaches the set limit temperature value, the converter is locked, and the converter stops running and exits.

[0014] The present application has reasonable design and good practical application value. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A traction converter cooling system operation diagram is shown.

[0016] Figure 2 A schematic diagram of an adjustable power ring control device is shown.

[0017] Figure 3 A control unit control principle diagram is shown.

[0018] In the figure, 1 - water inlet main pipeline, 2 - water outlet main pipeline, 3 - heat dissipation tower, 4 - adjustable power ring control device, 5 - expansion water tank, 6 - other water-cooled components, 7 - control unit, 8 - cabinet temperature sensor, 101 - temperature sensor I, 102 - pressure sensor I, 201 - water pump, 202 - temperature sensor II, 203 - pressure sensor II, 401 - water inlet branch pipeline, 402 - fan matrix, 403 - water inlet joint, 404 - water-cooled plate, 405 - water outlet branch pipeline, 406 - water outlet joint. DETAILED DESCRIPTION

[0019] In order to make the person skilled in the art better understand the present application, the present application is further clearly and completely explained below in combination with the drawings.

[0020] The present application provides a traction converter cooling system, as shown in Figure 1 , 2 , which comprises a main pipeline, the main pipeline comprising a water inlet main pipeline 1 and a water outlet main pipeline 2; the water inlet main pipeline 1 is provided with a temperature sensor I 101 and a pressure sensor I 102, one end of the water inlet main pipeline 1 is connected with a heat dissipation tower 3, and the other end is connected with a water inlet branch pipeline 401 of an adjustable power ring control device 4, the water inlet branch pipeline 401 is connected with a water inlet of a water-cooled plate 404 through a water inlet joint 403; one end of the water outlet main pipeline 2 is connected with the heat dissipation tower 3, and the other end is connected with a water outlet branch pipeline 405 of the adjustable power ring control device 4, the water outlet branch pipeline 405 is connected with a water outlet of the water-cooled plate 404 through a water outlet joint 406, and the water outlet main pipeline is provided with a water pump 201, a temperature sensor II 202 and a pressure sensor II 203, and a branch thereof is provided with an expansion water tank 5.

[0021] As shown in Figure 2 , the adjustable power ring control device 4 is connected with the main pipeline through the branch pipeline 401. The adjustable power ring control device 4 is provided with a radiator, and the radiator is provided with a fan matrix 402.

[0022] As shown in Figure 1 , the temperature sensor I 101 and the pressure sensor I 102 are connected on the water inlet main pipeline 1 in a corresponding manner, and the temperature sensor II 202 and the pressure sensor II 203 are connected on the water outlet main pipeline 2 in a corresponding manner.

[0023] When assembling, first connect the adjustable power ring control device 4 into the cooling system, install the fan matrix 402 in the adjustable power ring control device 4 on the radiator, connect the water inlet of the water cooling plate 404 with the water inlet joint 401, and then connect the water outlet of the water cooling plate 404 with the water outlet joint 406 through the water outlet branch pipe 405 and the water inlet main pipe 1; then synchronously install the temperature sensor I 101 and the pressure sensor I 102 on the water inlet main pipe 1, install the temperature sensor II 202 and the pressure sensor II 203 on the water outlet main pipe 2, then install the water pump 201 on the water outlet main pipe 2, install other water cooling components 6 between the water inlet main pipe 1 and the water outlet main pipe 2, and finally connect the main pipe with the radiator tower 3.

[0024] When working, first open the water pump 201 to draw the cooling liquid from the radiator tower 3 into the water outlet main pipe 2, and then along the water outlet main pipe 2, the cooling liquid enters the water cooling plate 404 through the water inlet branch pipe 401 and the water inlet joint 403, the water cooling plate 404 cools the internal devices of the adjustable power ring control device 4, and then the cooling liquid enters the water inlet main pipe 1 through the water outlet joint 406 and the water outlet branch pipe 405 after the water cooling plate 404, at the same time, the cooling liquid also enters other water cooling components 6 and the expansion tank 5 along the water outlet main pipe 2 to be cooled, and then flows back to the radiator tower 3 through the water inlet main pipe 1 after cooling is completed, the temperature sensor I 101 on the water outlet main pipe 2 and the temperature sensor II 202 on the water inlet main pipe 1 detect the temperature of the cooling liquid when the water outlet and the water inlet respectively, to ensure that there is a normal temperature difference, to ensure the normal operation of the system and the equipment.

[0025] When the temperature in the cabinet rises, the cabinet temperature sensor 8 detects the real-time temperature reaching the set opening temperature K1℃, and the control unit 7 is opened, when the temperature is greater than K1℃, the I channel of the control board is closed, and the fan M1 is started, when the temperature is greater than K2℃, the II channel of the control board is closed, and the fan M2 is started, when the temperature is less than K3℃, the II channel of the control board is disconnected, and the fan M2 is stopped, when the temperature is greater than K3℃, the III channel of the control board is closed, and the fan M3 is started, when the temperature is less than K3℃, the III channel of the control board is disconnected, and the fan M3 is stopped, and the same is true for each time the temperature rises Kx℃, the control board adds a closed channel, and the fan increases one, when the temperature decreases Kx℃, the control unit reduces one fan rotation, until the control unit over-temperature protection when the collected temperature reaches the set limit temperature value, the converter is locked, the converter stops running and exits.

[0026] The above description is merely one specific implementation of the application, and thus the technical solutions described in the foregoing embodiments can be modified or equivalent replacements can be made to some or all of the technical features thereof, without departing from the scope of the technical solutions described in the foregoing embodiments. Such modifications or replacements should be encompassed by the protection scope of the claims.

Claims

1. A traction converter cooling system, characterized by: The main pipe includes a water inlet main pipe (1) and a water outlet main pipe (2); The water inlet main pipe (1) is provided with a temperature sensor I (101) and a pressure sensor I (102), and one end of the water inlet main pipe (1) is connected with the heat dissipation tower (3), and the other end is connected with the adjustable power ring control device (4) water inlet branch pipe (401), the water inlet branch pipe (401) is connected with the water inlet of the water cooling plate (404) through the water inlet joint (403); One end of the water outlet main pipe (2) is connected with the heat dissipation tower (3), and the other end is connected with the water outlet branch pipe (405) of the adjustable power ring control device (4), the water outlet branch pipe (405) is connected with the water outlet of the water cooling plate (404) through the water outlet joint (406), the water outlet main pipe is provided with a water pump (201), a temperature sensor II (202) and a pressure sensor II (203), and a branch pipe is provided with an expansion water tank (5).

2. A traction converter cooling system according to claim 1, characterized in that: The water inlet main pipe (1) and the water outlet main pipe (2) are connected with other water cooling components (6).

3. A traction converter cooling system according to claim 1, characterized in that: The adjustable power ring control device (4) is connected with the main pipe through the water inlet branch pipe (401) and the water outlet branch pipe (405).

4. A traction converter cooling system according to claim 1, characterized in that: The adjustable power ring control device (4) is provided with a radiator, and the radiator is provided with a fan matrix (402).

5. A traction converter cooling system according to claim 1, characterized in that: The temperature sensor I (101) and the pressure sensor I (102) are connected on the water inlet main pipe (1) in a corresponding manner, and the temperature sensor II (202) and the pressure sensor II (203) are connected on the water outlet main pipe (2) in a corresponding manner.

6. A traction converter cooling system according to claim 4, characterized in that: The number of fans of the fan matrix (402) is n.

7. A traction converter cooling system according to claim 6, characterized in that: The n fans are respectively controlled by n channel control switches.

8. A traction converter cooling system according to claim 7, characterized in that: The n channel control switches are located in the control unit (7), and the environmental temperature parameter of the control unit (7) comes from the cabinet temperature sensor (8) located in the traction converter.

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