A six-flow radiator for locomotives capable of improving cooling performance

Abstract

The utility model discloses a six -process locomotive radiator that can improve cooling performance, including two water rooms, water chamber one and water chamber two, the core body between water chamber, and water chamber one is provided with radiator import and export on water chamber one, is provided with three baffle in water chamber one, and water chamber one is divided into four independent sub -water chamber, is provided with two baffle in water chamber two, and water chamber two is divided into three independent sub -water chamber, and the water pipe of core body is divided into six processes, and each section water pipe is connected with the sub -water chamber of water chamber one and water chamber two, and the windward surface is front, and the leeward surface is back, and the water pipe of six processes is arranged from back to front according to the direction of water flow. The flow path of the cooling liquid is designed into six processes, which prolongs the residence time and flow distance of the cooling liquid in the radiator, increases the flow rate of the cooling liquid, strengthens the heat exchange process, and finally improves the heat dissipation effect without increasing the structure size of the radiator.

Description

Technical Field

[0001] This utility model relates to the field of locomotive radiator technology. Background Technology

[0002] With the rapid development of the national economy in recent years, railway transportation has also experienced strong growth, characterized by large capacity, high speed, and high operating density. This necessitates that the locomotives used in these locomotives possess high power, strong traction, and energy efficiency. As the power of diesel engines in diesel locomotives increases, the required heat dissipation for locomotive cooling is also increasing, necessitating a corresponding increase in the size of related cooling systems, especially radiators. Given the limitations on increasing locomotive axle load and structural space, compact and efficient radiators are required. Existing single-flow and double-flow radiators suffer from low cooling efficiency and unsatisfactory heat dissipation due to short coolant flow paths and low speeds. Summary of the Invention

[0003] The technical problem solved by this invention is to provide a locomotive radiator that enhances the heat exchange process by increasing the coolant flow rate without increasing the volume.

[0004] The present invention employs a six-flow locomotive radiator capable of improving cooling performance, comprising two water chambers and a core between them. The water chambers include Water Chamber 1 and Water Chamber 2. Water Chamber 1 has a radiator inlet and outlet, and is divided into four independent sub-chambers by three partitions. Water Chamber 2 has three partitions, dividing it into three independent sub-chambers. The core's water pipes are divided into six flows, each connecting to a sub-chamber in Water Chamber 1 and Water Chamber 2. Diversion holes are provided on the partitions. With the windward side as the front and the leeward side as the rear, the six flows of water pipes are arranged from back to front according to the direction of water flow. The pipe plate and the water pipes together constitute the radiator's core.

[0005] The water pipes are arranged sequentially along the water flow direction as follows: first water pipe, second water pipe, third water pipe, fourth water pipe, fifth water pipe, and sixth water pipe. The sixth water pipe is located on the windward side of the radiator, and they are arranged sequentially backward, with the first water pipe located at the end.

[0006] The beneficial effect of this invention is that by designing the flow path of the coolant into six flows, the residence time and flow distance of the coolant in the radiator are extended, the flow rate of the coolant is increased, the heat exchange process is enhanced, and the heat dissipation effect is improved without increasing the structural size of the radiator. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of a radiator structure for a six-process locomotive.

[0008] Figure 2 This is a schematic diagram of the internal structure of the water chamber.

[0009] Figure 3 This is a schematic diagram of the internal structure of water chamber two.

[0010] The attached diagram is labeled as follows: 1-Water chamber one, 2-Water chamber two, 3-Tube sheet, 4-Water pipe, 5-Side plate, 6-Baffle, 7-Partition plate, 8-Diverter hole. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] This utility model discloses a six-flow locomotive radiator that can improve cooling performance. The six-flow locomotive radiator includes a water chamber 1, a water chamber 2, a core, and side plates 5. The water chamber 1 is located at one end of the core, the water chamber 2 is located at the other end of the core, and the side plates 5 are located on the left and right sides of the core. The core is formed by connecting a tube plate 3 and a water pipe 4.

[0013] Water chamber 1 has a radiator inlet and outlet. Inside water chamber 1 are baffles 7 and 6, and inside water chamber 2 are baffles 7, dividing both water chambers into several independent sub-chambers. Coolant enters one sub-chamber of water chamber 1 from the radiator inlet, then flows through the first-pass water pipe 4 of the core to one sub-chamber of water chamber 2. It then flows back through the second-pass water pipe 4 of the core to water chamber 1, entering another sub-chamber of water chamber 1. The flow direction changes, and it flows back through the third-pass water pipe 4 of the core to water chamber 2, and so on. After six passes, the coolant temperature drops to the target value and flows out of the radiator. To prevent the reduced coolant flow area from causing excessive water velocity and erosion of the water pipe 4, diversion holes 8 are installed on the baffles 7 inside the water chambers to balance the internal temperature and resistance of the radiator and reduce the coolant flow rate.

[0014] The six water pipes 4 are arranged in sequence according to the flow of water, with the sixth water pipe 4 located at the forefront of the windward side and the first water pipe 4 located at the end. This type of radiator, where the water flow direction is counter-current to the wind direction, has the following advantages: Maximizing temperature difference: When flowing against the current, the contact between the high-temperature water flow and the low-temperature air always maintains a large temperature difference. The water inlet corresponds to the air outlet, and when the water temperature is highest, it comes into contact with the air that has absorbed some heat but is still relatively low. The water outlet corresponds to the air inlet, and when the water temperature is lowest, it comes into contact with the coldest air. This continuous large temperature difference can significantly improve the heat transfer efficiency.

[0015] Improved heat dissipation efficiency: Compared to co-current flow, where the water flow is in the same direction as the wind, counter-current flow allows the air to carry away more heat. Under the same conditions, this can improve the heat dissipation capacity of the radiator, reduce the water temperature faster, and improve the heat dissipation effect without increasing the size of the radiator structure.

Claims

1. A six-flow locomotive radiator capable of improving cooling performance, comprising two water chambers and a core between the water chambers, characterized in that: The water chamber includes water chamber one and water chamber two. Water chamber one is equipped with a radiator inlet and outlet. Water chamber one is equipped with three partitions, which divide water chamber one into four independent water sub-chambers. Water chamber two is equipped with two partitions, which divide water chamber two into three independent water sub-chambers. The water pipe of the core is divided into six flow paths. Each flow path connects to the water sub-chambers of water chamber one and water chamber two. With the windward side as the front and the leeward side as the rear, the six flow paths are arranged from back to front according to the direction of water flow.

2. A six-flow locomotive radiator with improved cooling performance as described in claim 1, characterized in that: The tube sheet and water pipes together constitute the core of the radiator.

3. A locomotive radiator as described in claim 1, characterized in that: Diversion holes are provided on the partition plate.

4. A locomotive radiator as described in claim 1, characterized in that: The water pipes are arranged sequentially along the water flow direction as follows: first water pipe, second water pipe, third water pipe, fourth water pipe, fifth water pipe, and sixth water pipe. The sixth water pipe is located on the windward side of the radiator, and they are arranged sequentially backward, with the first water pipe located at the end.

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