Water-cooled direct-current deicing rectification power valve group

Abstract

The invention relates to the technical field of direct-current ice melting devices of power electronic systems, and provides a water-cooled direct-current ice melting rectification power valve bank which comprises a cabinet, a valve string press-fitting module, a water-cooled resistor assembly module, a capacitor module, a water inlet pipeline assembly and a water outlet pipeline assembly, and an installation space is formed in the cabinet; the valve string press-fitting module is arranged in the mounting space and located in front of the left side of the mounting space. The water-cooling resistor assembly module is arranged in the mounting space and is positioned behind the middle part of the mounting space; the capacitor module is arranged in the installation space and located behind the right side of the capacitor module. The water inlet pipeline assembly is arranged on the outer side of the cabinet and located behind the left side of the cabinet. The water outlet pipeline assembly is arranged on the outer side of the cabinet and located in the middle of the rear side of the cabinet. The valve string press-fitting module, the water-cooling resistor assembly module and the capacitor module extend in the height direction of the installation space. Compact arrangement of the valve bank structure is achieved, and meanwhile installation, maintenance and expansion are facilitated through the modular design.

Description

Technical Field

[0001] The invention relates to the technical field of direct current ice-melting devices for power electronic systems, and in particular to a water-cooled direct current ice-melting rectifier power valve group. Background Art

[0002] In order to improve the power grid system's ability to cope with extreme climates and major natural disasters, and to ensure the safe and stable operation of the power grid system in ice and snow disaster weather, DC ice melting devices have gradually entered the public's field of vision. With the widespread application of DC ice melting devices, higher requirements are also placed on their overall structural design. The commonly used structural designs on the market are currently large in size, with low compactness and poor scalability in layout methods; the wiring side of some product structural designs crosses with the pipeline, which increases the difficulty of installation and maintenance; the modular design is low, installation and maintenance are poor, and the cost is high. Summary of the invention

[0003] In view of the above problems, the present invention designs a water-cooled DC ice-melting rectifier power valve group. The present application realizes a compact arrangement of the valve group structure, and the modular design facilitates installation, maintenance and expansion.

[0004] The present invention provides a water-cooled direct current ice-melting rectifier power valve group, comprising: A cabinet, wherein an installation space is formed in the cabinet; A valve string press-fit module, the valve string press-fit module is arranged in the installation space and is located in front of the left side of the installation space; A water-cooled resistor assembly module, which is disposed in the installation space and located behind the middle of the installation space, and is electrically connected to the valve string press-fit module; A capacitor module, the capacitor module is arranged in the installation space and is located behind the right side of the capacitor module, and the capacitor module is electrically connected to the valve string press-fit module and the water-cooled resistor assembly module respectively; A water inlet pipeline assembly, the water inlet pipeline assembly is arranged outside the cabinet and located behind the left side of the cabinet, and the water inlet pipeline assembly is respectively connected to the valve string press-fit module and the water-cooled resistor assembly module; A water outlet pipeline assembly, the water outlet pipeline assembly is arranged outside the cabinet and located in the middle of the rear side of the cabinet, and the water outlet pipeline assembly is respectively connected with the valve string press-fit module and the water-cooled resistor assembly module; Wherein, the valve string press-fitting module, the water-cooled resistor assembly module and the capacitor module all extend along the height direction of the installation space.

[0005] According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the water-cooled DC ice-melting rectifier power valve group includes a wire support beam, the wire support beam is arranged in front of the capacitor module and is located on the right side of the capacitor module and the water-cooled resistor assembly module, the valve string press-assembled module also includes a resistor wire and a capacitor wire, the resistor wire and the capacitor wire are respectively routed through the wire support beam, the resistor wire is used to connect to the water-cooled resistor assembly module, and the capacitor wire is connected to the capacitor module.

[0006] According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the cabinet comprises: Base assembly; A top cover plate, the top cover plate is spaced apart and arranged above the base assembly; A plurality of frame support beams are connected between the base and the top cover plate, and the base assembly, the top cover plate and the plurality of frame support beams together enclose the installation space.

[0007] According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the water-cooled DC ice-melting rectifier power valve group also includes a valve string fixing bracket, and the valve string fixing bracket is connected between the top cover plate and the valve string press-fit module.

[0008] According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the base assembly includes an upper frame, a lower frame and a plurality of insulators, the lower frame and the upper frame are arranged at intervals, and the plurality of insulators are arranged around the lower frame and the upper frame.

[0009] According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the capacitor module includes multiple capacitors, a first fixed beam, a second fixed beam, a third fixed beam and a fourth fixed beam, the multiple capacitors are stacked in the height direction, the first fixed beam, the second fixed beam, the third fixed beam and the fourth fixed beam are arranged on the outer peripheral side of the multiple resistors and are connected to the multiple resistors, and the first fixed beam, the second fixed beam, the third fixed beam and the fourth fixed beam are respectively connected to the base assembly and the top cover plate at both ends along the height direction.

[0010] According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the water-cooled DC ice-melting rectifier power valve group also includes a first output bracket and a second output bracket, the first output bracket is arranged on the base assembly, the second output bracket is arranged on the top cover plate, the output copper busbar of the valve string press-fit module is fixed to the base assembly through the first output bracket, or the output copper busbar of the valve string press-fit module is fixed to the top cover plate through the second output bracket.

[0011] According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the water-cooled DC ice-melting rectifier power valve group also includes a water pipe clamp, and the water inlet pipe assembly and the water outlet pipe assembly are respectively connected to the outer wall of the cabinet through the water pipe clamp.

[0012] According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the water inlet pipeline assembly includes a main water inlet pipe, a resistor water inlet pipe and a valve string water inlet pipe, the main water inlet pipe is connected to the water-cooled resistor assembly module through the resistor water inlet pipe, and the main water inlet pipe is connected to the valve string press-fit module through the valve string water inlet pipe; And / or, the water outlet pipe assembly includes a main water outlet pipe, a resistor water outlet pipe and a valve string water outlet pipe, the main water outlet pipe is connected to the water-cooled resistor assembly module through the resistor water outlet pipe, and the main water outlet pipe is connected to the valve string press-fit module through the valve string water outlet pipe.

[0013] According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the water-cooled DC ice-melting rectifier power valve group also includes a cable groove, the cable groove is located on the outside of the cabinet and in the middle of the front side of the cabinet, and the cable groove is arranged corresponding to the cable outlet of the valve string press-fit module.

[0014] The present invention provides a water-cooled DC ice-melting rectifier power valve group, which effectively utilizes the three-dimensional space of the cabinet by arranging the valve string press-fit module at the front left side of the installation space, the water-cooled resistor assembly module at the rear middle part, and the capacitor module at the rear right side, and all extend along the height direction of the installation space, so that the entire valve group structure is more compact and the space utilization rate is improved. The valve string press-fit module, the water-cooled resistor assembly module, and the capacitor module are designed as independent units, and the modular design makes the valve group more convenient during installation, maintenance and upgrading. In addition, the water inlet pipeline assembly and the water outlet pipeline assembly are respectively arranged at the rear left side and the middle of the rear side of the outer side of the cabinet, avoiding cross interference with the internal electrical connection lines, and facilitating the connection and maintenance of external pipelines, thereby improving the safety and reliability of the system; at the same time, since the valve group adopts a vertical structure design as a whole, it can be adjusted with the adjustment of the valve string press-fit module. When the valve string press-fit module is increased or decreased, the height of the valve group can also be increased or decreased accordingly, thereby effectively improving the scalability of the valve group. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is an axial view of the water-cooled large-capacity direct current ice-melting rectifier power valve group of the present invention.

[0017] Figure 2 It is a top view of the water-cooled large-capacity DC ice-melting rectifier power valve group (with the upper cover plate hidden) of the present invention.

[0018] Figure 3 It is a front view of the water-cooled large-capacity direct current ice-melting rectifier power valve group of the present invention.

[0019] Figure 4 It is a right side view of the water-cooled large-capacity direct current ice-melting rectifier power valve group of the present invention.

[0020] Reference numerals: 1. Top cover plate; 2. Main water outlet pipe; 3. First fixed beam; 4. Water-cooled resistor assembly module; 5. Capacitor module; 6. Base assembly; 7. Cable trough; 8. Valve string press module; 9. Water pipe support elbow; 10. Main water inlet pipe; 11. First output row bracket 1; 12. Frame support beam; 13. Water pipe clamp; 14. Resistor water inlet pipe; 15. Valve string water inlet pipe; 16. Valve string fixed bracket; 17. Resistor wire; 18. Board support beam; 19. Wire support beam; 20. Capacitor wire; 21. Second fixed beam; 22. Third capacitor fixed beam; 23. Fixed beam support elbow; 24. Fourth fixed beam; 25. Resistor water outlet pipe; 26. Valve string water outlet pipe; 27. Second output row bracket. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0024] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0026] Combine the following Figures 1 to 4 , the water-cooled DC ice-melting rectifier power valve group provided by the embodiment of the present invention is described in detail through specific embodiments and application scenarios.

[0027] Embodiments of the present invention, referring to Figures 1 to 4A water-cooled DC ice-melting rectifier power valve group includes a cabinet, a valve string press-fit module 8, a water-cooled resistor assembly module 4, a capacitor module 5, a water inlet pipeline assembly and a water outlet pipeline assembly. An installation space is formed in the cabinet; the valve string press-fit module 8 is arranged in the installation space and is located in front of the left side of the installation space; the water-cooled resistor assembly module 4 is arranged in the installation space and is located at the rear of the middle of the installation space, and the water-cooled resistor assembly module 4 is electrically connected to the valve string press-fit module 8; the capacitor module 5 is arranged in the installation space and is located at the rear of the right side of the capacitor module 5, The capacitor module 5 is electrically connected to the valve string press-fit module 8 and the water-cooled resistor assembly module 4 respectively; the water inlet pipe assembly is arranged on the outside of the cabinet and is located at the rear of the left side of the cabinet, and the water inlet pipe assembly is respectively connected to the valve string press-fit module 8 and the water-cooled resistor assembly module 4; the water outlet pipe assembly is arranged on the outside of the cabinet and is located in the middle of the rear side of the cabinet, and the water outlet pipe assembly is respectively connected to the valve string press-fit module 8 and the water-cooled resistor assembly module 4; wherein, the valve string press-fit module 8, the water-cooled resistor assembly module 4 and the capacitor module 5 all extend along the height direction of the installation space.

[0028] In the embodiment of the invention, the water-cooled DC ice-melting rectifier power valve group adopts a vertical structural design as a whole, and its appearance structure is in the form of a rectangular parallelepiped.

[0029] The cabinet serves as the carrier and protective shell of the entire valve group, providing a safe operating environment for each internal module.

[0030] The space formed inside the cabinet is used to install and arrange key components such as the valve string press-fit module 8, the water-cooled resistor assembly module 4, the capacitor module 5, etc., to ensure that they can work normally and be connected to each other.

[0031] The valve string press module 8 is arranged in the front of the left side of the installation space for easy operation and observation, while keeping a close distance with the connection outside the cabinet (such as the water inlet pipeline assembly) to reduce the pipeline length and connection complexity.

[0032] As the core part of the rectifier power valve group, the valve string press module 8 is responsible for the control and conversion of current and is a key component for realizing the DC ice melting function. Among them, the valve string press module includes a water cooling plate, a thyristor, a copper busbar, etc., which are uniformly pressed together.

[0033] In some embodiments, the water-cooled large-capacity DC ice-melting rectifier power valve group also includes a board support beam 18, which is arranged on the right side of the valve string press-fit module 8 and connected to the valve string press-fit module 8. The upper and lower ends of the board support beam 18 are respectively connected and fixed to the top plate and the bottom plate of the installation space.

[0034] The water-cooled resistor assembly module 4 is located at the rear of the middle of the installation space, and maintains an appropriate distance from the valve string press module 8 to facilitate heat dissipation and electrical connection. The water-cooled resistor assembly module 4 reduces the heat generated by the valve string press module 8 during operation by water cooling to ensure stable operation of the system. At the same time, it is electrically connected to the valve string press module 8 to jointly realize the control and regulation of current. Among them, the water-cooled resistor assembly module 4 includes a water-cooled resistor and a plurality of support beams.

[0035] The capacitor module 5 is arranged at the rear of the right side of the installation space, and maintains an appropriate electrical connection distance with the valve string press module 8 and the water-cooled resistor assembly module 4. The capacitor module 5 provides the required capacitance support for the valve string press module 8, stabilizes voltage and current fluctuations, and improves the stability and efficiency of the entire system.

[0036] The water inlet pipe assembly and the water outlet pipe assembly are respectively arranged at the left rear and the middle of the rear side of the cabinet to avoid cross interference with the internal electrical connection lines, and to facilitate the connection and maintenance of the external water source. The water inlet pipe assembly and the water outlet pipe assembly provide cooling water circulation for the water-cooled resistor assembly module 4 and the valve string press module 8 to ensure that the system can effectively dissipate heat when running at high load. The water inlet pipe assembly is responsible for supplying water to the system, while the water outlet pipe assembly is responsible for discharging the used hot water out of the system.

[0037] The valve string press-fit module 8, the water-cooled resistor assembly module 4 and the capacitor module 5 all extend in the height direction of the installation space, effectively utilizing the three-dimensional space of the cabinet, making the entire valve group structure more compact and efficient. At the same time, this layout also helps to improve the heat dissipation performance of the system and the stability of the electrical connection.

[0038] The present application effectively utilizes the three-dimensional space of the cabinet by setting the valve string press-fit module 8 in the front left side of the installation space, the water-cooled resistor assembly module 4 in the middle rear, and the capacitor module 5 in the right rear, and all extend along the height direction of the installation space, making the entire valve group structure more compact and improving the space utilization rate. The valve string press-fit module 8, the water-cooled resistor assembly module 4, and the capacitor module 5 are designed as independent units, and the modular design makes the valve group more convenient during installation, maintenance and upgrading. In addition, the water inlet pipeline assembly and the water outlet pipeline assembly are respectively arranged at the left rear and the middle of the rear side of the outer side of the cabinet, avoiding cross interference with the internal electrical connection line, and facilitating the connection and maintenance of the external pipeline, thereby improving the safety and reliability of the system; at the same time, since the valve group adopts a vertical structure design as a whole, it can be adjusted with the adjustment of the valve string press-fit module 8. When the valve string press-fit module 8 is increased or decreased, the height of the valve group can also be increased or decreased accordingly, thereby effectively improving the ductility of the valve group.

[0039] Reference Figure 2 and Figure 4According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the water-cooled DC ice-melting rectifier power valve group includes a wire support beam 19, the wire support beam 19 is arranged in front of the capacitor module 5 and is located on the right side of the capacitor module 5 and the water-cooled resistor assembly module 4, the valve string press-fit module 8 also includes a resistor wire 17 and a capacitor wire 20, the resistor wire 17 and the capacitor wire 20 are respectively routed through the wire support beam 19, the resistor wire 17 is used to connect to the water-cooled resistor assembly module 4, and the capacitor wire 20 is connected to the capacitor module 5.

[0040] It is understandable that the wire support beam 19 is arranged in front of the capacitor module 5 and is located on the right side of the capacitor module 5 and the water-cooled resistor assembly module 4. The wire support beam 19 is mainly used to manage and guide the resistor wire 17 and the capacitor wire 20 to ensure that these wires can be connected from one module to another in an orderly manner, avoiding the problem of disorderly cables and improving the neatness of the system. By reasonably arranging the wiring path, the wire support beam 19 helps save internal space, making the connection between modules more compact, while also leaving enough operating space for other components. Clear wiring helps simplify future maintenance work. Technicians can more easily track and handle specific wires or cables, reducing troubleshooting time.

[0041] The resistance wire 17 is used to electrically connect the power electronic components (such as thyristors) in the valve string press module 8 with the water-cooled resistance assembly module 4 to ensure that the current can be correctly transmitted between the two, thereby realizing the functions of current regulation and power control.

[0042] The capacitor wire 20 is responsible for connecting the valve string press-fit module 8 with the capacitor module 5, so that the capacitor can play its role of energy storage and voltage smoothing to ensure the stability of the output DC current. Through the effective connection with the capacitor module 5, the capacitor wire 20 can help reduce harmonic interference in the system and improve the quality of power.

[0043] Reference Figure 1 According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the cabinet includes a base assembly 6, a top cover plate 1 and a plurality of frame support beams 12, the top cover plate 1 is arranged above the base assembly 6 at intervals; the plurality of frame support beams 12 are connected between the base and the top cover plate 1, and the base assembly 6, the top cover plate 1 and the plurality of frame support beams 12 jointly enclose an installation space.

[0044] It is understandable that the base assembly 6 is located at the bottom of the entire cabinet, bearing the weight of all internal modules to ensure that the entire device is stably placed on the ground. Typically, the base assembly 6 will include high-voltage insulators or other insulating materials to achieve electrical isolation, prevent current leakage, and ensure the safety of operators.

[0045] The top cover plate 1 is arranged above the base assembly 6 at intervals and connected to the base assembly 6 through the frame support beam 12. The top cover plate 1 forms a space together with other components.

[0046] The top cover plate 1 works together with the base assembly 6 and the frame support beam 12 to enhance the overall structural strength of the cabinet, ensuring that it will not be deformed or damaged during transportation and use. Multiple frame support beams 12 connect the base assembly 6 and the top cover plate 1 to form a solid frame structure, providing the necessary mechanical strength and support for the entire cabinet, ensuring that each module can be stably installed and work normally.

[0047] The installation space formed by the base assembly 6, the top cover plate 1 and the plurality of frame support beams 12 provides an orderly installation environment for all internal modules, so that each functional module can operate under optimal conditions.

[0048] Reference Figure 3 According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the water-cooled DC ice-melting rectifier power valve group also includes a valve string fixing bracket 16, and the valve string fixing bracket 16 is connected between the top cover plate 1 and the valve string press-fit module 8.

[0049] It is understandable that the main function of the valve string fixing bracket 16 is to fix and support the valve string press-fit module 8, ensure the stability of the position of the valve string in the cabinet, and prevent displacement due to vibration and other reasons during the operation of the equipment. At the same time, the number of valve string fixing brackets 16 can be increased or decreased according to the increase or decrease in the number of valve string press-fit modules 8 in the installation space, which facilitates the expansion and adjustment of the water-cooled DC ice-melting rectifier power valve group.

[0050] Reference Figure 1 According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the base assembly 6 includes an upper frame, a lower frame and a plurality of insulators, the lower frame and the upper frame are arranged at intervals, and the plurality of insulators are arranged around the lower frame and the upper frame.

[0051] It is understood that the upper frame is located above the base assembly 6 and is spaced apart from the lower frame by an insulator. As a part of the base assembly 6, the upper frame provides additional mechanical support and enhances the overall rigidity of the base. Together with the lower frame, it forms a stable platform for carrying and fixing the internal modules.

[0052] The lower frame is located at the bottom of the base assembly 6 and directly contacts the ground or other supporting surfaces. The lower frame is the foundation of the entire cabinet, bearing the weight of all internal modules to ensure that the equipment can be placed firmly on the ground.

[0053] A plurality of insulators are arranged between the lower frame and the upper frame to isolate the two. The main function of the insulator is to provide electrical isolation to prevent the risk of short circuit between the high voltage part and the ground. This ensures that the base assembly 6 can maintain a safe working state even in a high voltage environment. The insulator not only plays the role of electrical isolation, but also provides the necessary mechanical support to maintain a fixed distance between the upper frame and the lower frame, ensuring the structural stability of the base assembly 6.

[0054] The role of the accessory features in the scheme is explained separately: According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the capacitor module 5 includes multiple capacitors, a first fixed beam 3, a second fixed beam 21, a third fixed beam and a fourth fixed beam 24, and the multiple capacitors are stacked in the height direction. The first fixed beam 3, the second fixed beam 21, the third fixed beam and the fourth fixed beam 24 are arranged on the outer peripheral side of the multiple resistors and are connected to the multiple resistors. The first fixed beam 3, the second fixed beam 21, the third fixed beam and the fourth fixed beam 24 are respectively connected to the base assembly 6 and the top cover plate 1 at both ends along the height direction.

[0055] It can be understood that the multiple capacitors in the capacitor module 5 are stacked in the height direction, and the fixed beams are arranged around the outer peripheral sides of the multiple capacitors, providing a solid support structure for the capacitors, preventing the capacitors from being displaced or damaged due to vibration or external force during operation.

[0056] The fixed beam not only supports the capacitor, but also connects to the base assembly 6 and the top cover plate 1 at both ends along the height direction to form a complete structural frame, thereby enhancing the rigidity and stability of the entire capacitor module 5 and ensuring its long-term stable operation in a complex working environment.

[0057] Reference Figure 1 and Figure 2 According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the water-cooled DC ice-melting rectifier power valve group also includes a first output bracket and a second output bracket, the first output bracket is arranged on the base assembly 6, the second output bracket is arranged on the top cover plate 1, and the output copper bar of the valve string press-fit module 8 is fixed to the base assembly 6 through the first output bracket, or the output copper bar of the valve string press-fit module 8 is fixed to the top cover plate 1 through the second output bracket.

[0058] It is understandable that the main function of the output bracket is to fix and support the output copper bar of the valve string press module 8. The output copper bar is an important channel for current output in the rectifier power valve group, and they need to be firmly fixed in an appropriate position to ensure that the current can be transmitted stably and reliably. The output bracket effectively prevents the output copper bar from being displaced or deformed due to vibration or external force during operation by providing a solid support point.

[0059] Through the precise positioning and layout of the output bracket, the output bracket can ensure that the electrical connection between the output copper bar and other electrical components (such as capacitors, resistors, etc.) in the rectifier power valve group is tighter and more reliable. The design of the output bracket makes the installation process of the output copper bar of the valve string press module 8 easier. Through the standardized connection interface and fixed installation position, the fixing and connection of the output copper bar can be completed quickly.

[0060] Reference Figure 1 and Figure 3 According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the water-cooled DC ice-melting rectifier power valve group also includes a water pipe clamp 13, and the water inlet pipe assembly and the water outlet pipe assembly are respectively connected to the outer wall of the cabinet through the water pipe clamp 13.

[0061] It is understandable that the water pipe clamp 13 provides reliable mechanical fixation for the water inlet pipe assembly and the water outlet pipe assembly, ensuring that they are accurately and stably positioned on the outer wall of the cabinet. Even if vibration or impact occurs during transportation or operation, the water pipe will not be displaced or fall off. By evenly distributing the weight of the water pipe, the water pipe clamp 13 reduces the single-point stress and avoids structural deformation or damage caused by local overload, thereby extending the service life of the water pipe.

[0062] Reference Figure 2 According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the water inlet pipeline assembly includes a main water inlet pipe 10, a resistor water inlet pipe 14 and a valve string water inlet pipe 15. The main water inlet pipe 10 is connected to the water-cooled resistor assembly module 4 through the resistor water inlet pipe 14, and the main water inlet pipe 10 is connected to the valve string press-fit module 8 through the valve string water inlet pipe 15. The water outlet pipeline assembly includes a main water outlet pipe 2, a resistor water outlet pipe 25 and a valve string water outlet pipe 26. The main water outlet pipe 2 is connected to the water-cooled resistor assembly module 4 through the resistor water outlet pipe 25, and the main water outlet pipe 2 is connected to the valve string press-fit module 8 through the valve string water outlet pipe 26.

[0063] It can be understood that the main water inlet pipe 10 is the starting point of the entire water inlet pipeline system, located on the outer wall of the cabinet (left rear), and serves as the main inlet for the coolant to enter the system. The main water inlet pipe 10 is responsible for introducing the coolant from the external cooling source into the system and distributing it to subsequent branch pipes. A valve or flow regulating device can be provided to control the flow and pressure of the coolant entering the system to ensure a stable water supply.

[0064] The resistor water inlet pipe 14 is branched from the main water inlet pipe 10 and is directly connected to the water-cooled resistor assembly module 4, specifically providing coolant to the water-cooled resistor assembly module 4 to ensure that the module can obtain sufficient cooling support and maintain its operating temperature within a safe range. The water supply and pressure can be independently adjusted according to the actual needs of the water-cooled resistor assembly module 4 to optimize the cooling effect.

[0065] The valve string water inlet pipe 15 is also branched from the main water inlet pipe 10 and is directly connected to the valve string press-fit module 8 to provide cooling liquid for the valve string press-fit module 8, helping to manage the heat generated by the thyristor and other heating components in the module to ensure its normal operation. The water supply and pressure can also be independently adjusted according to the needs of the valve string press-fit module 8 to ensure the best cooling effect.

[0066] The main water outlet pipe 2 is the end point of the entire water outlet pipe system. It is located on the outer wall of the cabinet (the middle of the rear side) and serves as the total outlet of the coolant discharge system. The main water outlet pipe 2 is responsible for collecting the coolant flowing out of each module and discharging it back to the external cooling system. A pressure relief valve or other safety device can be equipped to prevent excessive internal pressure in the system to ensure safe operation.

[0067] The resistor water outlet pipe 25 is branched from the main water outlet pipe 2 and directly connected to the water-cooled resistor assembly module 4, specifically collecting the coolant flowing out of the water-cooled resistor assembly module 4 to ensure that the heat in the module is effectively taken away. The water discharge volume and pressure can be independently adjusted according to actual needs to optimize the cooling cycle.

[0068] The valve string water outlet pipe 26 is branched from the main water outlet pipe 2 and directly connected to the valve string press module 8, which is responsible for collecting the coolant flowing out of the valve string press module 8 to ensure that the heat in the module is effectively dissipated. The water discharge volume and pressure can also be independently adjusted according to actual needs to ensure the best cooling effect.

[0069] By rationally designing the water inlet and outlet pipe components, it is ensured that each heating module can obtain sufficient coolant supply and effective heat discharge, thereby improving the cooling efficiency of the entire system.

[0070] In some embodiments, a pressure relief valve is provided at the top of the water inlet pipe assembly and the water outlet pipe assembly, and an equipotential connection point is provided at each of the upper and lower sides.

[0071] In some embodiments, the resistor water inlet pipe 14, the valve string water inlet pipe 15, the resistor water outlet pipe 25 and the valve string water outlet pipe 26 are connected to the water-cooled resistor assembly module 4 and the valve string press-fit module 8 through a water nozzle and are fixed by a water pipe support bend 9.

[0072] Reference Figure 2 and Figure 4 According to a water-cooled DC ice-melting rectifier power valve group provided by the present invention, the water-cooled DC ice-melting rectifier power valve group also includes a cable groove 7, the cable groove 7 is located on the outside of the cabinet and in the middle of the front side of the cabinet, and the cable groove 7 is arranged corresponding to the cable outlet of the valve string press-fit module 8.

[0073] It can be understood that the cable trough 7 provides a centralized routing channel for the wires and cables led out from the valve string press module 8, ensuring that these cables can enter and exit the cabinet in an orderly manner, avoiding the problem of disorderly cables. By rationally planning the layout in the cable trough 7, different types of cables such as power lines, control lines and signal lines can be arranged separately, reducing electromagnetic interference between each other and improving the power quality and stability of the system.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A water-cooled DC ice-melting rectifier power valve group, characterized in that: include: A cabinet, wherein an installation space is formed in the cabinet; A valve string press-fit module, the valve string press-fit module is arranged in the installation space and is located in front of the left side of the installation space; A water-cooled resistor assembly module, which is disposed in the installation space and located behind the middle of the installation space, and is electrically connected to the valve string press-fit module; A capacitor module, the capacitor module is arranged in the installation space and is located behind the right side of the capacitor module, and the capacitor module is electrically connected to the valve string press-fit module and the water-cooled resistor assembly module respectively; A water inlet pipeline assembly, the water inlet pipeline assembly is arranged outside the cabinet and located behind the left side of the cabinet, and the water inlet pipeline assembly is respectively connected to the valve string press-fit module and the water-cooled resistor assembly module; A water outlet pipeline assembly, the water outlet pipeline assembly is arranged outside the cabinet and located in the middle of the rear side of the cabinet, and the water outlet pipeline assembly is respectively connected with the valve string press-fit module and the water-cooled resistor assembly module; Wherein, the valve string press-fitting module, the water-cooled resistor assembly module and the capacitor module all extend along the height direction of the installation space.

2. The water-cooled DC ice-melting rectifier power valve group according to claim 1 is characterized in that: The water-cooled DC ice-melting rectifier power valve group includes a wire support beam, which is arranged in front of the capacitor module and on the right side of the capacitor module and the water-cooled resistor assembly module. The valve string press-assembled module also includes a resistor wire and a capacitor wire, and the resistor wire and the capacitor wire are respectively routed through the wire support beam. The resistor wire is used to connect to the water-cooled resistor assembly module, and the capacitor wire is connected to the capacitor module.

3. The water-cooled DC ice-melting rectifier power valve group according to claim 1 is characterized in that: The cabinet comprises: Base assembly; A top cover plate, the top cover plate is spaced apart and arranged above the base assembly; A plurality of frame support beams are connected between the base and the top cover plate, and the base assembly, the top cover plate and the plurality of frame support beams together enclose the installation space.

4. The water-cooled DC ice-melting rectifier power valve group according to claim 3 is characterized in that: The water-cooled DC ice-melting rectifier power valve group also includes a valve string fixing bracket, and the valve string fixing bracket is connected between the top cover plate and the valve string press-fit module.

5. The water-cooled DC ice-melting rectifier power valve group according to claim 3 is characterized in that: The base assembly comprises an upper frame, a lower frame and a plurality of insulators. The lower frame and the upper frame are arranged at intervals, and the plurality of insulators are arranged between the lower frame and the upper frame.

6. The water-cooled DC ice-melting rectifier power valve group according to claim 3 is characterized in that: The capacitor module includes multiple capacitors, a first fixed beam, a second fixed beam, a third fixed beam and a fourth fixed beam. The multiple capacitors are stacked in the height direction. The first fixed beam, the second fixed beam, the third fixed beam and the fourth fixed beam are arranged on the outer peripheral side of the multiple resistors and are connected to the multiple resistors. The first fixed beam, the second fixed beam, the third fixed beam and the fourth fixed beam are respectively connected to the base assembly and the top cover plate at both ends along the height direction.

7. The water-cooled DC ice-melting rectifier power valve group according to claim 3 is characterized in that: The water-cooled DC ice-melting rectifier power valve group also includes a first output bracket and a second output bracket, the first output bracket is arranged on the base assembly, and the second output bracket is arranged on the top cover plate, and the output copper busbar of the valve string press-fit module is fixed to the base assembly through the first output bracket, or the output copper busbar of the valve string press-fit module is fixed to the top cover plate through the second output bracket.

8. The water-cooled DC ice-melting rectifier power valve group according to any one of claims 1 to 7, characterized in that: The water-cooled DC ice-melting rectifier power valve group also includes a water pipe clamp, and the water inlet pipeline assembly and the water outlet pipeline assembly are respectively connected to the outer side wall of the cabinet through the water pipe clamp.

9. The water-cooled DC ice-melting rectifier power valve group according to claim 8, characterized in that: The water inlet pipeline assembly includes a main water inlet pipe, a resistor water inlet pipe and a valve string water inlet pipe, the main water inlet pipe is connected to the water-cooled resistor assembly module through the resistor water inlet pipe, and the main water inlet pipe is connected to the valve string press-fit module through the valve string water inlet pipe; And / or, the water outlet pipe assembly includes a main water outlet pipe, a resistor water outlet pipe and a valve string water outlet pipe, the main water outlet pipe is connected to the water-cooled resistor assembly module through the resistor water outlet pipe, and the main water outlet pipe is connected to the valve string press-fit module through the valve string water outlet pipe.

10. The water-cooled DC ice-melting rectifier power valve group according to claim 1, characterized in that: The water-cooled DC ice-melting rectifier power valve group also includes a cable trough, which is located on the outside of the cabinet and in the middle of the front side of the cabinet. The cable trough is arranged corresponding to the cable outlet of the valve string press-fit module.

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