CN210246592U - Cooling system for locomotive traction converter - Google Patents
Cooling system for locomotive traction converter Download PDFInfo
- Publication number
- CN210246592U CN210246592U CN201921703298.7U CN201921703298U CN210246592U CN 210246592 U CN210246592 U CN 210246592U CN 201921703298 U CN201921703298 U CN 201921703298U CN 210246592 U CN210246592 U CN 210246592U
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- water
- cooling
- radiator
- cooling system
- traction converter
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Abstract
The utility model relates to a cooling system for locomotive traction converter, which is characterized in that a pressure sensor, a temperature sensor, a first stop valve, a water pump, a radiator and a filter are arranged, so that cooling water in a water-cooling substrate flows back to the inner cavity of the water-cooling substrate through the first stop valve, the water pump, the radiator and the filter in sequence to realize the cooling of the traction converter; meanwhile, in order to further enhance the cooling effect of the radiator, the water channel structure in the radiator is set to be S-shaped or spiral, and the flow distribution pieces are additionally arranged, so that the heat exchange area is increased, the turbulent flow effect is enhanced, and the heat exchange efficiency of the whole cooling system is improved.
Description
Technical Field
The utility model belongs to the technical field of the locomotive refrigerated, especially, relate to a cooling system for locomotive traction converter.
Background
The traction transmission system of the locomotive and the motor train unit can generate a large amount of heat due to mechanical or electrical loss in the processes of energy conversion, power transmission and the like, and the converter is a core component of the alternating current transmission electric locomotive, so that the performance of the motor train unit is determined to a great extent. When the motor train unit operates, a large working current flows through the traction converter, large heat loss is generated, a power device generates heat, heat loss is generated, and if the temperature exceeds the limit which can be borne by an element, the danger of insulation failure, fire and the like of an electric element can be generated, so that the heat generated when the traction converter operates must be taken away by a proper cooling system, the normal operation of the traction converter can be ensured, and the safe operation of a locomotive is ensured.
Disclosure of Invention
The utility model aims at overcoming the not enough of prior art, provide a cooling system for locomotive traction converter.
The utility model discloses a realize through following technical scheme:
a cooling system for a locomotive traction converter, characterized by: this cooling system is totally closed circulation water-cooling heat dissipation cooling system, includes: the device comprises a power module (1), a filter (4), a temperature sensor (3), a pressure sensor (2), a first stop valve (5), a cooling device and a water pump (8); the cooling device consists of a radiator (7) and a fan set (6), the power module (1) consists of a semiconductor device (11) and a water-cooling substrate (12), heat-conducting silicone grease is coated between the semiconductor device (11) and the water-cooling substrate (12), the semiconductor device (11) is tightly pasted and fixed on the outer surface of the water-cooling substrate (12), and a water flow channel is arranged inside the water-cooling substrate (12); the cooling water in the water-cooling substrate (12) in the power module (1) flows back to the inner cavity of the water-cooling substrate (12) after sequentially passing through the pressure sensor (2), the temperature sensor (3), the filter (4), the first stop valve (5), the radiator (7) and the water pump (8), and exchanges heat with the power module (1) in the traction converter.
Furthermore, the cooling system also comprises an expansion water tank (9), wherein the expansion water tank (9) is connected between the water pump (8) and the radiator (7) in parallel, and part of cooling water flows to the expansion water tank (9) from the radiator (7).
Furthermore, a visual liquid level meter (10) is arranged on the expansion water tank (9).
Further, a second stop valve (13) and a third stop valve (14) are respectively installed on the inlet and outlet sides of the cooling device.
Furthermore, a water channel structure in the radiator is S-shaped, and a splitter vane is arranged in the S-shaped water channel structure.
Furthermore, a water channel structure in the radiator (7) is arranged to be spiral, and six shunting pieces are arranged in the spiral water channel structure.
The utility model has the advantages that: the utility model discloses simple structure through setting up pressure sensor, temperature sensor, stop valve, water pump, radiator, filter, realizes pulling the cooling of converter, and in order to further strengthen the cooling effect of radiator, set up the water course structure in the radiator into S type (labyrinth type) or screw-tupe simultaneously to add the flow distribution piece, increase heat transfer area, the effect of reinforcing vortex has improved whole cooling system' S heat transfer efficiency.
Drawings
FIG. 1 is a cooling system for a locomotive traction converter.
Fig. 2 shows a radiator with an S-shaped channel structure.
Fig. 3 shows a radiator with a spiral channel structure.
The reference numerals in the figures denote:
1. a power module; 2. A pressure sensor; 3. A temperature sensor; 4. a filter; 5. a first shut-off valve; 6. a fan unit; 7. a heat sink; 8. a water pump; 9. an expansion tank; 10. a visual liquid level meter; 11. A semiconductor device; 12. water-cooling the substrate; 13. a second stop valve; 14. a third stop valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, a cooling system for a locomotive traction converter is a fully enclosed circulating water cooling system, and includes: the device comprises a power module 1, a filter 4, a temperature sensor 3, a pressure sensor 2, a first stop valve 5, a cooling device and a water pump 8; the cooling device consists of a radiator 7 and a fan unit 6, the power module consists of a semiconductor device 11 and a water-cooling substrate 12, heat-conducting silicone grease is coated between the semiconductor device 11 and the water-cooling substrate 12, the semiconductor device 11 is tightly attached and fixed on the outer surface of the water-cooling substrate 12, and a water flow channel is arranged inside the water-cooling substrate 12; the cooling water in the water-cooled substrate 12 in the power module 1 sequentially passes through the pressure sensor 2, the temperature sensor 3, the filter 4, the first stop valve 5, the radiator 7 and the water pump 8 and then flows back to the inner cavity of the water-cooled substrate 12, and exchanges heat with the power module 1 in the traction converter.
Still include expansion tank 9, expansion tank 9 parallel connection is between water pump 8 and radiator 7, its effect is the change of the coolant liquid volume that the compensation temperature change arouses, be convenient for adjust the pressure of water pump import, if the inside air pressure of expansion tank is greater than or is less than certain specified value, can exchange with ambient air through the two-way valve on the expansion tank, if the expansion tank is too full because of the cooling liquid volume inflation, the overflow valve on the accessible expansion tank discharge liquid, install visual liquid level gauge 10 on expansion tank 9 and can conveniently monitor the change of system's water yield.
Locomotive consist cooling system principle: a water flow channel is arranged in the water-cooling substrate 12, when the semiconductor device 11 works, heat generated due to heat loss is firstly transmitted to the water-cooling substrate 12, the water-cooling substrate 12 transmits the heat to cooling water in an inner cavity, the cooling water in the water-cooling substrate 12 forcibly circulates the cooling water in the inner cavity of the water-cooling substrate 12 to the radiator 7 through the cooling water pump 8, part of the cooling water flows to the expansion water tank 9 from the radiator 7, and the rest of the cooling water flows back to the inner cavity of the water-cooling substrate 12 from the radiator 7 to exchange heat with the power module 1 in the traction converter; and the circulation is repeated in sequence, the cooling module absorbs the heat of the power module 1 into cooling water, and the heat of the cooling water of the radiator 7 is taken away by the fan unit 6, so that the circulation is balanced.
And a second stop valve 13 and a third stop valve 14 are respectively arranged on the inlet side and the outlet side of the cooling device, so that a water path is conveniently closed during maintenance, the loss of cooling liquid is reduced as much as possible, and a corrugated pipe is arranged on a cooling system pipeline and used for compensating the size difference during assembly.
The radiator of the traction converter is a component in an external cooling device, the radiator forcibly exchanges heat through a fan, the radiator and the cooling fan set form the external cooling device, namely, the cooling fan set drives external environment air to flow on the cooling air side of the radiator, and the air absorbs heat brought by cooling water of the converter when passing through the radiator and then is dissipated into the environment. At present, the cooling channels of most radiators are linear channels, and the structure is easy to process, but the problems of large water requirement in internal circulation and uneven flow distribution of various flow channels exist.
As shown in fig. 2, in order to further enhance the cooling effect of the radiator, the water channel structure in the radiator is set to be an S-shaped (labyrinth-shaped) water channel structure from a conventional linear water channel, so that the water inflow is saved, the flow disturbance is increased by changing the direction of the flow channel, the convective heat transfer coefficient is increased, the condition that the fluid in each flow channel is not uniformly distributed does not exist, and the heat dissipation effect is improved to a certain extent.
Meanwhile, in order to further improve the heat exchange efficiency of the radiator, the flow distribution fins are arranged in the S-shaped water channel structure, so that the heat exchange area is increased, the turbulent flow is enhanced, the cross section area through which water can flow is reduced, the flow velocity is increased, and the heat exchange coefficient of the water and the wall surface is improved.
As shown in fig. 3, alternatively, the water channel structure in the radiator is arranged in a spiral shape, so that the incoming flow is perpendicular to the heating surface, directly impacts the hot surface, and then flows out of the cold plate along the spiral water channel, and six shunting pieces are arranged in the spiral water channel structure.
Claims (6)
1. A cooling system for a locomotive traction converter, characterized by: this cooling system is totally closed circulation water-cooling heat dissipation cooling system, includes: the device comprises a power module (1), a filter (4), a temperature sensor (3), a pressure sensor (2), a first stop valve (5), a cooling device and a water pump (8); the cooling device consists of a radiator (7) and a fan set (6), the power module (1) consists of a semiconductor device (11) and a water-cooling substrate (12), heat-conducting silicone grease is coated between the semiconductor device (11) and the water-cooling substrate (12), the semiconductor device (11) is tightly pasted and fixed on the outer surface of the water-cooling substrate (12), and a water flow channel is arranged inside the water-cooling substrate (12); the cooling water in the water-cooling substrate (12) in the power module (1) flows back to the inner cavity of the water-cooling substrate (12) after sequentially passing through the pressure sensor (2), the temperature sensor (3), the filter (4), the first stop valve (5), the radiator (7) and the water pump (8), and exchanges heat with the power module (1) in the traction converter.
2. The cooling system for a locomotive traction converter according to claim 1, wherein: the radiator is characterized by further comprising an expansion water tank (9), wherein the expansion water tank (9) is connected between the water pump (8) and the radiator (7) in parallel, and part of cooling water flows to the expansion water tank (9) from the radiator (7).
3. A cooling system for a locomotive traction converter according to claim 2, wherein: the expansion water tank (9) is provided with a visual liquid level meter (10).
4. The cooling system for a locomotive traction converter according to claim 1, wherein: a second stop valve (13) and a third stop valve (14) are respectively arranged on the inlet side and the outlet side of the cooling device.
5. The cooling system for a locomotive traction converter according to claim 1, wherein: the water channel structure in the radiator is S-shaped, and the flow distribution sheets are arranged in the S-shaped water channel structure.
6. The cooling system for a locomotive traction converter according to claim 1, wherein: the water channel structure in the radiator (7) is arranged to be spiral, and six shunting pieces are arranged in the spiral water channel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921703298.7U CN210246592U (en) | 2019-10-12 | 2019-10-12 | Cooling system for locomotive traction converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921703298.7U CN210246592U (en) | 2019-10-12 | 2019-10-12 | Cooling system for locomotive traction converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210246592U true CN210246592U (en) | 2020-04-03 |
Family
ID=69966485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921703298.7U Expired - Fee Related CN210246592U (en) | 2019-10-12 | 2019-10-12 | Cooling system for locomotive traction converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210246592U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113437035A (en) * | 2021-05-27 | 2021-09-24 | 天津电气科学研究院有限公司 | High-efficient two-sided crimping type water-cooling radiator |
| CN113700836A (en) * | 2020-05-20 | 2021-11-26 | 上海圣克赛斯液压股份有限公司 | Cooling device and offshore wind driven generator comprising same |
-
2019
- 2019-10-12 CN CN201921703298.7U patent/CN210246592U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700836A (en) * | 2020-05-20 | 2021-11-26 | 上海圣克赛斯液压股份有限公司 | Cooling device and offshore wind driven generator comprising same |
| CN113437035A (en) * | 2021-05-27 | 2021-09-24 | 天津电气科学研究院有限公司 | High-efficient two-sided crimping type water-cooling radiator |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200403 Termination date: 20211012 |