Load-bearing cooling pipe and converter chassis suitable for converter chassis

Abstract

The present invention is a load-bearing cooling pipeline suitable for a converter chassis and a converter chassis, wherein the load-bearing cooling pipeline suitable for the converter chassis includes a pipeline body, the pipeline body is a profile structure, and two independent cavities are formed inside the profile structure, and the two cavities serve as a water inlet cavity and a water outlet cavity respectively. Both cavities extend along the length direction of the profile structure, and the two cavities are arranged side by side along the width direction of the profile structure. The pipeline body can be used to be fixed in the top frame of the converter chassis and serve as a part of the top frame. The present invention can effectively solve the problems of poor reliability, large space occupation, high weight, and single function of existing metal cooling pipeline structures.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transportation, and in particular to a load-bearing cooling pipeline suitable for a converter chassis and the converter chassis. Background Art

[0002] Existing converter products for installation under EMU vehicles are primarily constructed with a load-bearing top frame and a skin structure. The internal cooling unit uses separate metal pipes as piping to connect the various loads that require water cooling. However, existing cooling piping has the following drawbacks:

[0003] (1) The existing cooling pipe is a part of the cooling unit and is supported on the bottom of the converter chassis by a metal bracket. Its role is limited to a part of the cooling system, its function is single, and it occupies a part of the limited space of the chassis.

[0004] (2) Because it is a metal pipe, it brings a considerable weight burden to the entire undercar product.

[0005] (3) The cooling pipeline is divided into two lines, one inlet and one outlet. The two lines are connected by welding. The welding connection method of the two lines has a certain risk of leakage. If possible, try to reduce the number of welds to reduce the risk.

[0006] Therefore, the inventors, relying on their many years of experience and practice in related industries, have proposed a load-bearing cooling pipeline and a converter chassis suitable for a converter chassis to overcome the defects of the prior art. Summary of the Invention

[0007] The purpose of the present invention is to provide a load-bearing cooling pipeline and a converter chassis suitable for a converter chassis, which can effectively solve the problems of poor reliability, large space occupation, high weight and single function of the existing metal cooling pipeline structure.

[0008] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0009] The present invention provides a load-bearing cooling pipeline suitable for a converter chassis, comprising a pipeline body; the pipeline body is a profile structure, and two independent cavities are formed inside the profile structure, and the two cavities serve as a water inlet cavity and a water outlet cavity respectively; the two cavities extend along the length direction of the profile structure, and the two cavities are arranged side by side along the width direction of the profile structure; the pipeline body can be used to be fixed in the top frame of the converter chassis and serve as a part of the top frame.

[0010] In a preferred embodiment of the present invention, the profile structure is a rectangular tube body formed by integrally forming a top wall, a bottom wall and two side walls, and a partition wall is integrally formed between the top wall and the bottom wall; the partition wall extends along the length direction of the profile structure and divides the interior of the rectangular tube body into two cavities.

[0011] In a preferred embodiment of the present invention, the cross-sections of the two cavities are both rectangular.

[0012] In a preferred embodiment of the present invention, a plurality of spoiler inserts are provided in both cavities at intervals along the length direction thereof, and the spoiler inserts are perpendicular to the length direction of the profile structure.

[0013] In a preferred embodiment of the present invention, the spoiler insert is an annular insert with a through hole in the center, and the outer peripheral shape of the annular insert matches the cross-sectional shape of the cavity.

[0014] In a preferred embodiment of the present invention, the through hole is a circular hole.

[0015] In a preferred embodiment of the present invention, the cross-sectional area of the spoiler insert is smaller than the cross-sectional area of the cavity.

[0016] In a preferred embodiment of the present invention, the edge of the spoiler insert has at least one notch.

[0017] In a preferred embodiment of the present invention, three groups of spoiler insert assemblies are provided in the mold cavity, and each group of spoiler insert assemblies includes at least one spoiler insert; along the forward direction of the water flow, the three groups of spoiler insert assemblies are respectively located at the front end, middle part and end part of the mold cavity; and the spoiler insert located at the front end is arranged at the bottom of the mold cavity, and a gap is left between it and the top inner wall of the pipe body; the spoiler insert located in the middle is arranged at the side of the mold cavity, and a gap is left between it and the other side inner wall of the pipe body; the spoiler insert located at the end is arranged at the top of the mold cavity, and a gap is left between it and the bottom inner wall of the pipe body.

[0018] In a preferred embodiment of the present invention, the cross-section of the cavity is rectangular, the spoiler insert is a rectangular insert, and the width of the rectangular inserts at the front and end are the same as the width of the cavity, and the height of the rectangular insert in the middle is the same as the height of the cavity.

[0019] In a preferred embodiment of the present invention, an insertion hole is opened on the pipe wall of the pipe body, and the spoiler insert is inserted into the insertion hole and fixed to the pipe body by welding.

[0020] In a preferred embodiment of the present invention, both ends of the profile structure are closed ends, and a plurality of first hose interfaces that can communicate with the water inlet cavity are provided on the pipe wall of the pipe body at positions corresponding to the water inlet cavity, and a plurality of second hose interfaces that can communicate with the water outlet cavity are provided on the pipe wall of the pipe body at positions corresponding to the water outlet cavity.

[0021] The present invention also provides a converter chassis, comprising a top frame, a bottom plate and a partition connected between the top frame and the bottom plate. The converter chassis also includes the above-mentioned load-bearing cooling pipeline suitable for the converter chassis. The pipeline body is fixed in the top frame and serves as a part of the top frame.

[0022] As described above, the load-bearing cooling pipeline in the present invention cleverly adopts a profile structure and uses two cavities inside it to replace the existing water inlet pipe and water outlet pipe, so that the water inlet and outlet pipes are no longer connected by welding, but are integrated together through profiles, effectively avoiding the risk of leakage caused by welding, greatly improving reliability, and reducing overall weight. At the same time, the load-bearing cooling pipeline in the present invention can no longer be located at the bottom of the converter chassis only as a cooling component, but can be located on the top frame as part of the load-bearing structure, and take on the role of transmitting coolant between various components. It has more functions and occupies less space, making the layout inside the converter chassis more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following drawings are intended only to illustrate and explain the present invention and are not intended to limit the scope of the present invention.

[0024] Figure 1 : A three-dimensional diagram of the converter chassis provided by the present invention.

[0025] Figure 2 : A structural diagram of the pipeline body provided by the present invention when the spoiler insert is not installed.

[0026] Figure 3 : A structural diagram of the load-bearing cooling pipeline for the converter chassis provided by the present invention when the spoiler insert adopts the first structure.

[0027] Figure 4 : A structural diagram of the spoiler insert provided by the present invention when adopting the first structure.

[0028] Figure 5 : A structural diagram of the load-bearing cooling pipeline for the converter chassis provided by the present invention when the spoiler insert adopts the second structure.

[0029] Figure 6 :for Figure 5 Cross-section along the AA direction.

[0030] Figure 7 :for Figure 5 The cross-section along the BB direction. Figure 7 The direction from left to right is the direction of water flow.

[0031] Figure 8 :for Figure 5 side view.

[0032] Figure 9 :for Figure 5 Top view of .

[0033] Figure 10 :for Figure 5 Bottom view of .

[0034] Figure 11 : A structural diagram of the spoiler insert provided by the present invention when adopting the second structure.

[0035] Description of Figure Numbers:

[0036] 100. Suitable for load-bearing cooling pipes of converter chassis;

[0037] 1. Pipeline body; 11. Top wall; 12. Bottom wall; 13. Side wall; 14. Partition wall; 15. Socket;

[0038] 2. Cavity; 21. Water inlet cavity; 22. Water outlet cavity;

[0039] 3. Spoiler insert; 31. Through hole; 32. Notch; 301. First spoiler insert; 302. Second spoiler insert; 303. Third spoiler insert;

[0040] 200, converter chassis;

[0041] 201, top shelf;

[0042] 202, bottom plate;

[0043] 203. Partition. DETAILED DESCRIPTION

[0044] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0045] like Figures 1 to 11As shown, this embodiment provides a load-bearing cooling pipe 100 suitable for a converter chassis, comprising a pipe body 1. The pipe body 1 is a profile structure having two independent cavities 2 formed therein, serving as a water inlet cavity 21 and a water outlet cavity 22, respectively. Both cavities 2 extend along the length of the profile structure and are arranged side by side along the width of the profile structure. The pipe body 1 can be fixedly mounted in the top frame 201 of the converter chassis 200 and serve as a portion of the top frame 201.

[0046] It can be understood that after the profile structure is processed and integrally formed, its inner cavity can form the above-mentioned two cavities 2, and the two cavities 2 are on the same profile; the cross-sectional shape and size of the two cavities 2 are generally the same, and the cross-sections mentioned in the text all refer to the cross-sections along the length direction of the profile structure. Most existing converter cooling water pipes are only fixed to the bottom of the converter chassis through a bracket as part of the cooling unit. The entire metal cooling pipeline has two routes, one water inlet pipe and one water outlet pipe; both are made of aluminum alloy and are fixed by welding, which poses a risk of leakage. In this embodiment, the two cavities 2 of the profile structure replace the water inlet pipe and the water outlet pipe of the existing cooling pipeline, which can directly avoid the welding connection method.

[0047] Furthermore, the existing inlet and outlet water pipes are welded together and fixed to the base plate with metal brackets, which only serve a limited purpose and take up space. Since the top frame 201, serving as the primary load-bearing structure of the converter chassis 200, is welded from square tubes of various specifications, this embodiment utilizes the hollow tubes of the top frame 201. This section of the embodiment replaces a portion of the tubes in the top frame 201 with the section structure of this embodiment. This allows the entire load-bearing cooling pipeline to function as part of the top frame 201, providing both cooling and load-bearing functions.

[0048] Therefore, the load-bearing cooling pipeline in this embodiment cleverly adopts a profile structure and uses the two internal cavities 2 to replace the existing water inlet and outlet pipes, so that the water inlet and outlet pipes are no longer connected by welding, but are integrated together through the profile, effectively avoiding the risk of leakage caused by welding, greatly improving reliability, and reducing overall weight. At the same time, the load-bearing cooling pipeline in this embodiment can no longer be located at the bottom of the converter chassis 200 solely as a cooling component, but can be located on the top frame 201 as part of the load-bearing structure and take on the role of transmitting coolant between various components. It has more functions and occupies less space, making the layout inside the converter chassis 200 more compact.

[0049] In a specific implementation, the cross-sectional shape of the profile structure can be determined as needed. Generally, in order to facilitate its installation in the top frame 201, the profile structure adopts a rectangular plate structure. Specifically, Figure 2As shown, the profile structure is a rectangular tube body integrally formed by enclosing a top wall 11, a bottom wall 12, and two side walls 13, and a partition wall 14 is integrally formed between the top wall 11 and the bottom wall 12. The partition wall 14 extends along the length direction of the profile structure and divides the interior of the rectangular tube body into two cavities 2.

[0050] For the cross-sectional shape of the cavity 2, it can be circular, rectangular or other shapes according to needs. Generally, when the profile structure adopts a rectangular plate structure, in order to make the space utilization rate in the profile structure larger, the cross-sections (i.e., the cross-sections along the length direction of the profile structure) of the two cavities 2 are preferably rectangular. As Figure 2 shown, at this time, the cross-sectional shape of the entire profile structure is in the shape of a Chinese character 'Ri', forming a 'Ri'-shaped profile; the two mouth-shaped channels of the 'Ri'-shaped profile respectively replace the inlet pipeline and the outlet pipeline of the existing cooling pipeline.

[0051] In practical applications, in order to reduce the impact of water flow on the bearing cooling pipeline and improve the bearing effect of the bearing cooling pipeline, as Figures 3 to 11 shown, a plurality of flow disturbance inserts 3 are arranged at intervals along the length direction in the two cavities 2, and the sheet body of the flow disturbance insert 3 is perpendicular to the length direction of the profile structure. The flow disturbance insert 3 can generate a flow disturbance effect on the water flow in the cavity 2, so as to reduce the wave peak of the fluid inside the cavity 2 and prevent the fluid inside the cavity 2 from impacting the inner wall of the pipeline body 1, enabling it to bear the weight of the structural member.

[0052] More specifically, the shape of the flow disturbance insert 3 can be selected according to needs, as long as it can achieve the flow disturbance effect. For example, the flow disturbance insert 3 can adopt the following two structural forms:

[0053] The first type: The flow disturbance insert 3 is an annular insert with a through hole 31 in the center, and the outer peripheral shape of the annular insert matches the cross-sectional shape of the cavity 2.

[0054] The entire annular insert is arranged in the cavity 2 and can basically cover the entire cross-section of the cavity 2. The water flow mainly flows through the through hole 31 in the center of the annular insert to achieve the flow disturbance effect, and the flow disturbance effect is good. Multiple annular inserts can be arranged at intervals along the length direction of the cavity 2 according to actual needs.

[0055] However, this structure may affect the flow velocity of the water flow. Generally, in order to improve the flow disturbance effect and reduce the impact on the water flow velocity, the through hole 31 is preferably a circular hole. For example, as Figure 3 and Figure 4 shown, when the cross-section of the cavity 2 is rectangular, the annular insert is also a rectangular insert. When the through hole 31 of the rectangular insert adopts a circular hole, the area of the through hole 31 is the largest, which can ensure the flow disturbance effect on the water flow while minimizing the impact on the flow velocity, so as to slow down the impact of the water flow on the pipe wall.

[0056] The second type: the cross-sectional area of the spoiler insert 3 (ie, the cross-sectional area of the spoiler insert 3 along the length direction of the profile structure, ie, the solid cross-sectional area of the spoiler insert 3 ) is smaller than the cross-sectional area of the cavity 2 .

[0057] In this case, the spoiler insert 3 is not a ring-shaped structure with a through hole, but only a sheet structure with a certain shape. The entire spoiler insert 3 can only cover a part of the entire cross-section of the cavity 2. The water flow can only flow through the gap between the spoiler insert 3 and the inner wall of the pipe body 1 to play a spoiler role.

[0058] To further enhance the flow-disrupting effect, the edge of the spoiler insert 3 generally includes at least one notch 32. This notch 32 can divert the water flow, providing enhanced flow disturbance and filtering, while also minimizing the impact on the flow velocity. The shape and number of notches 32 can be determined as needed. For example, in this embodiment, the spoiler insert 3 is provided with two rectangular notches.

[0059] In this structural form, in order to achieve a better filtering effect, three groups of spoiler insert assemblies are generally provided in the cavity 2, each group of spoiler insert assemblies including at least one spoiler insert 3. Along the forward direction of the water flow, the three groups of spoiler insert assemblies are respectively located at the front end, middle part and end part of the cavity 2. And the spoiler insert 3 at the front end (i.e. Figure 5 The first spoiler insert 301 is located at the bottom of the cavity 2, and a gap is left between the spoiler insert 3 (i.e. Figure 5 The second spoiler insert 302 is located on the side of the cavity 2 and has a gap with the inner wall of the other side of the pipe body 1. The spoiler insert 3 at the end (i.e. Figure 5 The third spoiler insert 303 is arranged at the top of the cavity 2 and leaves a gap between it and the bottom inner wall of the pipeline body 1.

[0060] The number of the spoiler inserts 3 included in each spoiler insert assembly can be determined according to the actual water flow rate. For example, in this embodiment, Figure 5As shown, each set of spoiler insert assemblies includes a spoiler insert 3. It can be understood that the profile structure is fixed in the top frame 201 when in use, and its length direction is arranged in the horizontal direction. Therefore, the three sets of spoiler insert assemblies are respectively distributed at the lower, middle and upper parts of the pipeline body 1 along the forward direction of the fluid, which can achieve a better chopping effect. Specifically, the first spoiler insert 301 is inserted into the cavity 2 from the bottom up, which can filter out the first wave crest of the water flow from the root; the third spoiler insert 303 is inserted into the cavity 2 from the top down, which can filter out the last wave of shock wave crest of the water flow; the second spoiler insert 302 can filter out a wave crest to ensure the stability of the fluid inside the cavity 2. At the same time, the notch 32 on the spoiler insert 3 is used to minimize the impact on the flow rate of the fluid in the cavity 2 while playing a chopping role.

[0061] In addition, the specific shape of the spoiler insert 3 in the second structure can be determined according to the cross-sectional shape of the cavity 2. For example, in this embodiment, when the cross-sectional shape of the cavity 2 is rectangular, Figure 5 As shown, the spoiler insert 3 is a rectangular insert, and the width of the rectangular inserts at the front and end are the same as the width of the cavity 2, and the height of the rectangular insert in the middle is the same as the height of the cavity 2 to ensure the spoiler effect.

[0062] Of the two aforementioned structures of the flow-disrupting insert 3, the first structure provides a greater flow-disrupting effect than the second, but the first structure has a greater impact on the water flow velocity than the second. Generally, the first structure is preferred for structures with low water flow velocity requirements, while the second structure is preferred for structures with high water flow velocity requirements. Of course, the specific form of the flow-disrupting insert 3 depends on actual needs; this embodiment is merely an example.

[0063] Furthermore, in order to facilitate the installation and fixation of the spoiler insert 3, the spoiler insert 3 can be connected to the inside of the pipe body 1 by plug welding. Specifically, a socket 15 is opened on the pipe wall of the pipe body 1, and the spoiler insert 3 is inserted into the socket 15 and fixed to the pipe body 1 by welding.

[0064] The shape and position of the jack 15 are determined according to the shape and position of the actual spoiler insert 3. For example, Figure 7 and Figure 10As shown, when the spoiler insert 3 adopts the second structure described above and adopts a rectangular insert, a rectangular insertion hole 15 is opened on the bottom wall 12 of the pipe body 1, and the first spoiler insert 301 is inserted into the insertion hole 15 from bottom to top, and one of the edges of the first spoiler insert 301 is welded to the bottom wall 12. For another example, when the spoiler insert 3 adopts the first structure described above and adopts a rectangular insert, a rectangular insertion hole 15 is opened on the corresponding wall surface of the pipe body 1, and the rectangular insert is inserted into the insertion hole 15, and one of the edges of the rectangular insert is welded to the wall surface; it can be understood that in this case, there will be a small gap between the other three edges of the rectangular insert and the inner wall of the pipe body 1, but this does not affect the spoiler effect; when in use, a small portion of the water flow will flow through the gap, and the majority of the water flow will flow through the through hole 31, still having a good spoiler effect. The spoiler insert 3 is fixed by plug welding, which is a simple process, and when welding, only a portion of the spoiler insert 3 (such as one of the edges) needs to be welded, and there is no risk of leakage.

[0065] Furthermore, in order to facilitate the installation of the load-bearing cooling pipe in this embodiment on the top frame 201 and to facilitate the connection of various loads requiring water cooling, both ends of the profile structure are closed. A plurality of first hose interfaces (not shown in the figure) capable of communicating with the water inlet cavity 21 are provided on the pipe wall of the pipe body 1 at positions corresponding to the water inlet cavity 21, and a plurality of second hose interfaces (not shown in the figure) capable of communicating with the water outlet cavity 22 are provided on the pipe wall of the pipe body 1 at positions corresponding to the water outlet cavity 22.

[0066] During actual installation, after the load-bearing cooling pipeline is installed on the top frame 201, the corresponding first hose interface is used to connect it to the water pump provided in the converter chassis 200 through the corresponding hose, and the water pump is connected to the radiator; then the corresponding first hose interface is used to connect to the water-cooled plate of the corresponding product to be cooled through the corresponding hose to cool the corresponding product; the water-cooled plate is connected to the corresponding second hose interface through the corresponding hose to flow the heated coolant from the water-cooled plate back to the water outlet cavity 22; then the corresponding second hose interface is used to connect to the radiator through the corresponding hose to dissipate heat from the coolant. The specific water cooling process is the existing technology. In this embodiment, the first hose interface and the second hose interface are used in conjunction with the corresponding hose to connect the water inlet cavity 21 and the water outlet cavity 22 of the load-bearing cooling pipeline to the corresponding water pump, radiator and various loads that need to be cooled, which is simple and convenient.

[0067] Furthermore, this embodiment also provides a converter chassis 200, including a top frame 201, a bottom plate 202 and a partition 203 connected between the top frame 201 and the bottom plate 202, and also includes the above-mentioned load-bearing cooling pipeline 100 suitable for the converter chassis, and the pipeline body 1 is fixed in the top frame 201 and serves as a part of the top frame 201.

[0068] Generally, the pipeline body 1 can be directly welded and fixed in the top frame 201. The load-bearing cooling pipeline replaces part of the square tube profile in the original top frame 201, which not only increases the strength and rigidity of the converter chassis 200, but also greatly saves the space occupied by the cooling pipeline, reduces the weight, and makes the structure more compact.

[0069] In summary, the load-bearing cooling pipe 100 and the converter chassis 200 in this embodiment are suitable for the converter chassis. The original cooling unit pipe is replaced by a load-bearing cooling pipe with a profile structure. The inlet and outlet water pipes of the cooling unit are integrated through the profile method, thereby replacing the existing inlet and outlet water pipe welding connection method, avoiding the risk of leakage, and improving reliability. Moreover, the load-bearing cooling pipeline can be fixed in the top frame 201 as part of the top frame 201, and integrated with the load-bearing beam in the top frame 201, saving a lot of space. The original cooling unit pipeline structure can be eliminated and replaced by the load-bearing cooling pipeline, thereby saving costs and reducing the weight of the entire traction product. The entire load-bearing cooling pipeline can not only appropriately utilize its own metal material properties to withstand stress (for example, the load-bearing cooling pipeline can be made of aluminum alloy, which can bear weight while being lightweight), but can also be used as a cooling pipeline to transmit coolant. It has more functions and can reasonably utilize the structure of the converter chassis 200, making the internal layout of the converter chassis 200 more compact and lighter, providing a strong guarantee for the optimization of the entire traction product. In addition, by setting the spoiler insert 3 inside the cavity 2, the impact of water flow on the inner wall of the pipeline body 1 is reduced, ensuring the load-bearing effect of the load-bearing cooling pipeline.

[0070] The above is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the present invention should fall within the scope of protection of the present invention.

Claims

1. A load-bearing cooling pipeline suitable for a converter chassis, characterized in that: Including the pipeline body; The pipe body is a profile structure, and two independent cavities are formed inside the profile structure, which serve as a water inlet cavity and a water outlet cavity respectively; the two cavities extend along the length direction of the profile structure, and the two cavities are arranged side by side along the width direction of the profile structure; the pipe body can be used to be fixed in the top frame of the converter chassis and serve as a part of the top frame; Both ends of the profile structure are closed ends. A plurality of first hose interfaces that can communicate with the water inlet cavity are provided on the pipe wall of the pipe body at positions corresponding to the water inlet cavity, and a plurality of second hose interfaces that can communicate with the water outlet cavity are provided on the pipe wall of the pipe body at positions corresponding to the water outlet cavity. After the load-bearing cooling pipe is installed on the top frame, the corresponding first hose interface is used to connect to the water pump provided in the converter chassis through the corresponding hose, and the water pump is connected to the radiator. Then, the corresponding first hose interface is used to connect to the water cooling plate of the corresponding product to be cooled through the corresponding hose to cool the corresponding product. The water cooling plate is connected to the corresponding second hose interface through the corresponding hose so that the heated coolant flows from the water cooling plate back to the water outlet cavity. Then, the corresponding second hose interface is used to connect to the radiator through the corresponding hose to dissipate heat from the coolant. A plurality of spoiler inserts are provided in each of the two cavities and are arranged at intervals along their length direction, and the sheet body of the spoiler insert is perpendicular to the length direction of the profile structure.

2. The load-bearing cooling pipeline suitable for a converter chassis according to claim 1, characterized in that: The profile structure is a rectangular tube body formed by integrally forming a top wall, a bottom wall and two side walls, and a partition wall is integrally formed between the top wall and the bottom wall; the partition wall extends along the length direction of the profile structure and divides the interior of the rectangular tube body into two cavities.

3. The load-bearing cooling pipeline suitable for a converter chassis according to claim 1, characterized in that: The cross sections of the two cavities are both rectangular.

4. The load-bearing cooling pipeline suitable for a converter chassis according to claim 1, characterized in that: The spoiler insert is an annular insert with a through hole in the center, and the outer peripheral shape of the annular insert matches the cross-sectional shape of the cavity.

5. The load-bearing cooling pipeline suitable for a converter chassis according to claim 4, characterized in that: The through hole is a circular hole.

6. The load-bearing cooling pipeline suitable for a converter chassis according to claim 1, characterized in that: The cross-sectional area of the spoiler insert is smaller than the cross-sectional area of the cavity.

7. The load-bearing cooling pipeline suitable for a converter chassis according to claim 6, characterized in that: The edge of the spoiler insert has at least one notch.

8. The load-bearing cooling pipeline suitable for a converter chassis according to claim 6, characterized in that: There are three groups of spoiler insert assemblies in the mold cavity, and each group of spoiler insert assemblies includes at least one spoiler insert; along the forward direction of the water flow, the three groups of spoiler insert assemblies are respectively located at the front end, middle part and end part of the mold cavity; and the spoiler insert located at the front end is arranged at the bottom of the mold cavity, and a gap is left between it and the top inner wall of the pipe body; the spoiler insert located in the middle is arranged at the side of the mold cavity, and a gap is left between it and the other side inner wall of the pipe body; the spoiler insert located at the end is arranged at the top of the mold cavity, and a gap is left between it and the bottom inner wall of the pipe body.

9. The load-bearing cooling pipeline suitable for a converter chassis according to claim 8, characterized in that: The cross-section of the cavity is rectangular, the spoiler insert is a rectangular insert, and the width of the rectangular inserts at the front and end are the same as the width of the cavity, and the height of the rectangular insert in the middle is the same as the height of the cavity.

10. The load-bearing cooling pipeline suitable for a converter chassis according to claim 1, characterized in that: An insertion hole is opened on the pipe wall of the pipeline body, and the spoiler plug is inserted into the insertion hole and fixed to the pipeline body by welding.

11. A converter chassis, comprising a top frame, a bottom plate and a partition connected between the top frame and the bottom plate, characterized in that: The converter chassis further comprises a load-bearing cooling pipeline applicable to the converter chassis as described in any one of claims 1 to 10, wherein the pipeline body is fixed in the top frame and serves as a part of the top frame.

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