A dual-flow radiator unit for a railway locomotive

Abstract

The utility model discloses a double -flow channel radiator single section for railway locomotive, including core body and frame, the core body is provided with the radiator pipe in, its characterized in that: the both ends of frame are detachably connected with the butt -joint parts, and a plurality of frames are connected through the butt -joint parts and the radiator pipe in the core body is communicated in proper order, the butt -joint part includes the connecting box of detachable connection in the frame end, be provided with the connecting seat on the connecting box, and the connecting seat of single frame both ends is perpendicular to the frame length direction staggered setting, be provided with the water inlet and the water outlet joint of mutual adaptation on the connecting seat, and the water outlet joint on the connecting seat of adjacent two groups frame is inserted with the water inlet through the frame of pressing down and makes sealed cooperation, be provided with through -hole on the upper and lower ends of connecting seat, and the through -hole is fixedly connected through the threaded fastener between the adjacent two groups connecting seat. The utility model discloses the connecting seat design of frame both ends staggered, realized the extension assembly of single section length.

Description

Technical Field

[0001] This utility model relates to the field of railway locomotive heat dissipation technology, specifically to a single section of a dual-channel radiator for railway locomotives. Background Technology

[0002] During operation, railway locomotives generate a large amount of heat from their diesel engines or power electronics equipment, which needs to be cooled by radiators to ensure safe operation. Traditional railway locomotive radiators typically employ an integral welded structure or a piping structure with rigid flange connections.

[0003] However, traditional radiators often use several single sections stacked on top of each other to form a single structure, but the length of each section is usually fixed and not standardized. Due to the varying cooling requirements of different locomotive models, radiators of different lengths are often needed. Current technology cannot flexibly adjust the length of each section, requiring custom-made molds for specific specifications, resulting in long production cycles and high manufacturing costs. When a section of the radiator experiences leakage or blockage, the entire section often needs to be disassembled and replaced, undoubtedly increasing the maintenance cost of the cooling system. To solve these problems, a spliced ​​structure would place extremely high demands on the sealing of the joints. However, existing radiators, after assembly, typically require the introduction of cooling medium (water or oil) and pressurization before leak detection at the joints (i.e., "wet testing"). This leakage of cooling medium from the sections causes environmental pollution, making cleaning of mobile locomotives relatively inconvenient.

[0004] Therefore, developing a radiator section that can be modularly assembled and extended in length and has a self-testing function for sealing is an urgent need in the current railway locomotive supporting field. Utility Model Content

[0005] The purpose of this invention is to provide a single section of a dual-flow radiator for railway locomotives, in order to solve the problems mentioned in the background art, such as the inability to flexibly customize the length of the radiator, high maintenance costs, and environmental pollution caused by wet testing after assembly.

[0006] The technical solution adopted by this utility model to solve the above problems is: a single section of a dual-channel radiator for railway locomotives, including a core and a frame, wherein a heat dissipation pipe is provided in the core, characterized in that: the two ends of the frame are detachably connected to docking components, and several frames are connected end to end through the docking components and the heat dissipation pipes in the core are connected in sequence.

[0007] The docking component includes a connecting box that is detachably connected to the end of the frame. The connecting box is provided with a connecting seat. The connecting seats at both ends of a single frame are staggered back and forth perpendicular to the length direction of the frame.

[0008] The connecting seat is equipped with a matching inlet and outlet connector. By pressing down the frame, the outlet connector on the connecting seat of the two adjacent sets of frames is inserted and sealed with the inlet.

[0009] The upper and lower ends of the connector are provided with through holes, and adjacent sets of connectors are fixedly connected by threaded fasteners passing through the through holes.

[0010] Preferably, the connecting end face of the connecting seat is provided with an oval sealing ring, the edges of the sealing rings on two adjacent sets of connecting seats are interlocked, and after the two sets of connecting seats are connected, the sealing rings are squeezed and adhered, forming a sealing cavity on the outside of the water outlet and the water inlet.

[0011] Preferably, after two adjacent sets of frames are connected end to end, a detection component for detecting the sealing performance of the water outlet connector and the water inlet is provided on the outer end face of the connector located on the fluid inflow side.

[0012] Preferably, the detection component includes a detection tube, a detection cover, and an opening / closing valve. The two ends of the detection tube are respectively connected to the sealing cavity and the detection cover. The opening / closing valve is used to control the connection and disconnection between the detection tube and the sealing cavity. A piston is slidably disposed inside the detection cover. A return spring is connected to the lower end of the piston. An air extraction hole is provided at the bottom of the detection cover. Air is extracted through the air extraction hole to generate negative pressure in the detection tube and the sealing cavity. Under the action of negative pressure, the piston slides downward and compresses the return spring.

[0013] Preferably, the detection tube is a flexible universal tube.

[0014] Preferably, a protective net is detachably connected to the air inlet side of the frame, and the periphery of the protective net is magnetically attracted to the frame by magnetic strips.

[0015] Preferably, the outer wall of the connecting box is provided with a lifting ring for easy handling.

[0016] Compared with the prior art, this utility model has the following advantages and effects:

[0017] This invention breaks down the radiator into standardized single-section modules. Through a staggered connecting seat design at both ends of the frame, the length of each section can be extended for assembly. For assembling locomotive radiators with different power and length requirements, there is no need to create new molds; configuration can be completed simply by increasing or decreasing the number of sections, thereby shortening the production cycle and reducing costs.

[0018] Meanwhile, this invention incorporates a dual-seal design and a detection component for assessing the sealing performance of the seals. This allows for verification of the seal solely by evacuating air, without introducing water or oil. Compared to traditional detection methods, it eliminates the need to introduce cooling medium (water or oil) and pressurize the connection to check for leaks, thus preventing the cooling medium from flowing and maintaining a relatively clean and tidy environment at the locomotive site. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a single section of the radiator in Embodiment 1 of this utility model.

[0020] Figure 2 This is a schematic diagram of the connection structure of the two sets of frame connecting seats in Embodiment 1 of this utility model.

[0021] Figure 3 This is a schematic diagram of the detection component in Embodiment 2 of this utility model.

[0022] Figure 4 This is a cross-sectional view of the connecting seat at the detection component in Embodiment 2 of this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the detection cover in Embodiment 2 of this utility model.

[0024] Figure 6 This is a schematic diagram of the structure of a single section of the radiator in Embodiment 3 of this utility model.

[0025] Attached Figures: Core 1, Frame 2, Heat Dissipation Pipe 3, Connecting Box 4, Connecting Seat 5, Inlet 51, Outlet Connector 52, Through Hole 53, Sealing Ring 6, Sealing Cavity 7, Detection Component 8, Detection Tube 81, Detection Cover 82, Opening / Closing Valve 83, Piston 84, Return Spring 85, Air Extraction Hole 86, Protective Net 9, Lifting Ring 10. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0027] Example 1:

[0028] See Figure 1 and Figure 2 In this embodiment, a single section of a dual-flow radiator for railway locomotives is disclosed. Specifically, it is used for heat dissipation and cooling of the locomotive's internal combustion engine, power electronic cabinet, or auxiliary system. Specifically, it includes a core 1 and a frame 2. A heat dissipation pipe 3 is provided inside the core 1. The frame 2 is characterized in that: docking components are detachably connected to both ends of the frame 2, and several frames 2 are connected end to end through the docking components, and the heat dissipation pipes 3 inside the core 1 are connected in sequence.

[0029] The docking component includes a connecting box 4 detachably connected to the end of the frame 2. The connecting box 4 is provided with a connecting seat 5. The connecting seats 5 at both ends of a single frame 2 are staggered and perpendicular to the length direction of the frame 2. For the same frame 2, the connecting seat 5 at one end (such as the left end) is positioned forward, and the connecting seat 5 at the other end (such as the right end) is positioned backward (perpendicular to the length direction). This allows the front connecting seat 5 of the subsequent heat sink to naturally cover the rear connecting seat 5 of the previous heat sink during splicing, forming a stepped or overlapping connection without spatial interference.

[0030] The connecting seat 5 is provided with a water inlet 51 and a water outlet 52 that are compatible with each other. By pressing down the frame 2, the water outlet 52 on the connecting seat 5 of the adjacent two sets of frames 2 is inserted and sealed with the water inlet 51. The upper and lower ends of the connecting seat 5 are provided with through holes 53. The adjacent two sets of connecting seats 5 are fixedly connected by threaded fasteners passing through the through holes 53.

[0031] Specifically, in this embodiment, frame 2 adopts a modular splicing structure design, eliminating the need for traditional custom length customization. During splicing, the connecting seat 5 is equipped with a water inlet 51 (concave hole) and a water outlet connector 52 (a protruding tube with an O-ring groove). During installation, simply press the next frame section 2 downwards, and the water outlet connector 52 will be vertically inserted into the water inlet 51, completing the flow channel connection. It is then locked in place by threaded fasteners passing through the through hole 53. In this way, the manufacturer can produce standard length (e.g., 500mm) single sections. If the locomotive requires a 2-meter-long radiator, only 4 sections need to be assembled on-site. If 2.5 meters is required, 5 sections are assembled.

[0032] This invention breaks down the radiator into standardized single-section modules. Through the staggered connecting seats 5 at both ends of the frame 2, extended assembly of the single-section length is achieved. For assembling locomotive radiators with different power and length requirements, there is no need to create new molds; configuration can be completed simply by increasing or decreasing the number of single sections, thereby shortening the production cycle and reducing costs.

[0033] Example 2:

[0034] To address the environmental pollution and inconvenient cleanup caused by the introduction of cooling medium for detection, as mentioned in the background art, this embodiment designs a dry-state detection system. See [link to relevant documentation]. Figures 3 to 5The connecting end face of the connecting seat 5 is provided with an oval sealing ring 6. The edges of the sealing rings 6 on two adjacent sets of connecting seats 5 interlock. After the two sets of connecting seats 5 are connected, the sealing rings 6 are pressed together and a sealing cavity 7 is formed on the outside of the water outlet connector 52 and the water inlet 51, thus forming two seals. The first seal is located between the inner water inlet 51 and the water outlet connector 52 (usually a conventional O-ring, not shown in the figure); the second seal is located on the outer oval sealing ring 6. When the connecting seat 5 is locked, a closed sealing cavity 7 is formed between the two seals.

[0035] Furthermore, after the two adjacent sets of frames 2 are connected end to end, a detection component 8 for detecting the sealing performance between the water outlet connector 52 and the water inlet 51 is provided on the outer end face of the connecting seat 5 on the fluid inflow side. The detection component 8 includes a detection tube 81, a detection cover 82, and an opening / closing valve 83. The two ends of the detection tube 81 are respectively connected to the sealing cavity 7 and the detection cover 82. The opening / closing valve 83 is used to control the connection and disconnection between the detection tube 81 and the sealing cavity 7. A piston 84 is slidably disposed inside the detection cover 82. A return spring 85 is connected to the lower end of the piston 84. An air extraction hole 86 is provided at the bottom of the detection cover 82. Air is extracted through the air extraction hole 86 to generate negative pressure in the detection tube 81 and the sealing cavity 7. Under the action of negative pressure, the piston 84 slides downward and compresses the return spring 85. In this embodiment, the detection tube 81 can be a flexible universal tube, which makes it convenient to pull it out from the connection of the two sets of single-section modules for observation.

[0036] The pollution-free self-inspection operation is as follows: First, complete the mechanical splicing between the individual sections. At this time, no water or oil is injected into the radiator. Open the opening and closing valve 83 (a ball valve can be used), and connect the air extraction port 86 through a portable air extraction tool to perform air extraction. The air in the sealed cavity 7 is extracted, the air pressure decreases, and atmospheric pressure pushes the piston 84 downward and compresses the return spring 85. In this embodiment, the air extraction port 86 adopts a one-way valve (one-way conduction structure design), and gas flows only when air is extracted. Moreover, the detection component 8 is generally already evacuated to a low pressure when the opening and closing valve 83 is closed at the factory. During subsequent on-site installation, the air extraction operation can be skipped, and only the opening and closing valve 83 needs to be opened.

[0037] In this embodiment, part of the detection component 8 can be made of transparent material, such as the detection tube 81 and the detection cover 82. The sealing performance between the inlet 51 and the outlet connector 52 can be visually judged based on whether the cooling medium flows into the detection component 8 (used to test the first seal). When the cooling medium does not flow in (indicating the first seal is reliable), if the piston 84 remains in the compressed position for a long time, it indicates that the sealing cavity 7 is not leaking and the external sealing ring 6 is intact (otherwise, outside air would be drawn into the sealing cavity 7). If the piston 84 rebounds upward under the spring force, it indicates that the sealing ring 6 is leaking (used to test the second seal).

[0038] Compared with traditional testing methods, this testing method does not require the introduction of cooling medium (water or oil) and pressurization to detect leaks at the connection points, thus avoiding the situation of cooling medium flowing out and keeping the locomotive site environment relatively clean and tidy.

[0039] Example 3:

[0040] See Figure 6 Considering the harsh operating environment of locomotives, the radiator surface (air intake side) is prone to accumulating fibrous material. In this embodiment, a protective net 9 (which can be made of galvanized steel wire mesh, stamped mesh, etc., preventing debris intrusion while minimizing the impact on ventilation) is installed on the air intake side of frame 2, and is magnetically attached to frame 2 via magnetic strips. During cleaning, no tools are needed to tighten the screws; the protective net 9 can be removed directly by hand, facilitating daily cleaning. Furthermore, a lifting ring 10 is provided on the connecting box 4, facilitating the hoisting and handling of individual modules.

[0041] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A single section of a dual-channel radiator for railway locomotives, comprising a core and a frame, wherein a heat dissipation pipe is disposed within the core, characterized in that: The two ends of the frame are detachably connected to docking components, and several frames are connected end to end through the docking components, and the heat dissipation pipes in the core are connected in sequence. The docking component includes a connecting box that is detachably connected to the end of the frame. The connecting box is provided with a connecting seat. The connecting seats at both ends of a single frame are staggered back and forth perpendicular to the length direction of the frame. The connecting seat is equipped with a matching inlet and outlet connector. By pressing down the frame, the outlet connector on the connecting seat of the two adjacent sets of frames is inserted and sealed with the inlet. The upper and lower ends of the connector are provided with through holes, and adjacent sets of connectors are fixedly connected by threaded fasteners passing through the through holes.

2. A single section of a dual-flow radiator for railway locomotives according to claim 1, characterized in that: The connecting end face of the connector is provided with an oval sealing ring. The edges of the sealing rings on two adjacent sets of connectors fit together. After the two sets of connectors are connected, the sealing rings are squeezed and adhered, forming a sealing cavity on the outside of the water outlet and the water inlet.

3. A single section of a dual-flow radiator for railway locomotives according to claim 2, characterized in that: After the two adjacent sets of frames are connected end to end, a detection component for detecting the sealing performance of the water outlet connector and the water inlet is provided on the outer end face of the connector on the fluid inflow side.

4. A single section of a dual-flow radiator for railway locomotives according to claim 3, characterized in that: The detection component includes a detection tube, a detection cover, and an opening / closing valve. The two ends of the detection tube are connected to the sealing cavity and the detection cover, respectively. The opening / closing valve is used to control the connection and disconnection between the detection tube and the sealing cavity. A piston is slidably disposed inside the detection cover. A return spring is connected to the lower end of the piston. An air extraction hole is provided at the bottom of the detection cover. Air is extracted through the air extraction hole to generate negative pressure in the detection tube and the sealing cavity. Under the action of negative pressure, the piston slides downward and compresses the return spring.

5. A single section of a dual-flow radiator for railway locomotives according to claim 4, characterized in that: The detection tube is a flexible universal tube.

6. A single section of a dual-flow radiator for railway locomotives according to claim 1, characterized in that: The air inlet side of the frame is detachably connected to a protective net, and the periphery of the protective net is magnetically attracted to the frame by magnetic strips.

7. A single section of a dual-flow radiator for railway locomotives according to claim 1, characterized in that: The outer wall of the connecting box is equipped with a lifting ring for easy handling.

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