A high pressure tank for a hybrid locomotive

Abstract

The application discloses a high-voltage box and a hybrid locomotive, and relates to the technical field of high-voltage boxes, and particularly relates to a high-voltage box and a hybrid locomotive. The high-voltage box comprises a box body, a high-voltage grounding device, a vacuum circuit breaker, a lightning arrester and a voltage transformer, the high-voltage grounding device, the vacuum circuit breaker and the high-voltage part of the voltage transformer are all installed in the box body, the low-voltage parts of the high-voltage grounding device, the vacuum circuit breaker and the voltage transformer are all installed below the bottom of the box body; the high-voltage box further comprises a filtering component and a supporting assembly; an air exchange part is arranged on the side wall of the box body, the supporting assembly is installed on the box body close to the air exchange part, a cavity is formed between the supporting assembly and the air exchange part, and the filtering component is placed in the cavity. The high-voltage box provided by the application adopts high-low voltage partition design, effectively avoids electromagnetic interference, is convenient for maintenance, reduces the width of the box body, provides installation space for dismounting and mounting of the filtering component by cooperation of the supporting assembly and the box body, and avoids influence of moisture or dust on the equipment in the box body.

Description

Technical Field

[0001] This invention relates to the field of high-voltage electrical control for locomotives, and in particular to a high-voltage box and a hybrid locomotive. Background Technology

[0002] Currently, most urban rail shunting locomotives use internal combustion engines and batteries for power supply. Their high-voltage boxes are generally enclosed structures. For shunting locomotives operating on a single traction mode, a malfunction can directly render the vehicle inoperable. During operation, the high-voltage equipment in the high-voltage box is susceptible to environmental factors such as wind, sand, rain, and fog, leading to potential power outages. Batteries are also significantly affected by temperature rise during static charging, resulting in unstable charging efficiency. Furthermore, air trapped in a closed electric field environment for extended periods has a high probability of ionization, which can easily damage the high-voltage equipment.

[0003] Therefore, how to improve the reliability of high-voltage boxes is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a high-voltage box and hybrid locomotive that can meet the safe and environmentally friendly shunting needs in urban areas.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A high-voltage box includes a box body, a high-voltage grounding device, a vacuum circuit breaker, a surge arrester, and a voltage transformer. The high-voltage sections of the high-voltage grounding device, the vacuum circuit breaker, and the voltage transformer are all installed inside the box body, while the low-voltage sections of the high-voltage grounding device, the vacuum circuit breaker, and the voltage transformer are all installed below the bottom of the box body. The high-voltage grounding device is installed at the bottom of the vacuum circuit breaker, and the surge arrester is installed on the side wall of the box body. One side of the vacuum circuit breaker is connected to the surge arrester, and the other side is connected to the voltage transformer.

[0007] Furthermore, it also includes a filter component and a support assembly for mounting the filter component; an air exchange section is provided on the side wall of the housing for gas circulation, the support assembly is mounted on the housing near the air exchange section, and a chamber is formed between the support assembly and the air exchange section, the filter component is placed in the chamber, and the support assembly has a hollow portion for gas to flow into the chamber and pass through the filter component, and an opening for the filter component to be inserted or removed from the chamber.

[0008] Preferably, the enclosure also includes a monitoring device, which is installed in an adjustable position on the side wall of the enclosure to acquire the opening and closing status of the high-voltage grounding device, the vacuum circuit breaker and the voltage transformer, as well as the arrangement status of the cables inside the enclosure.

[0009] Preferably, the monitoring device includes an image acquisition component and a lighting component, wherein the image acquisition component is rotatably mounted inside the housing, and the image acquisition component is rotatably mounted on the housing.

[0010] Preferably, the monitoring device is detachably connected to the housing.

[0011] Preferably, the high-voltage grounding device includes a grounding blade and an operating handle for controlling the opening and closing of the grounding blade, the operating handle being installed below the bottom of the housing.

[0012] Preferably, the bottom of the box is provided with a drain hole, a drain trough for water inside the box to flow into the drain hole, and a drain outlet for water inside the box to flow out.

[0013] Preferably, the support assembly includes a first support plate, a second support plate, and fasteners for fixing the first support plate and the second support plate. Both the first support plate and the second support plate extend with connecting legs, and the connecting legs of the first support plate and the second support plate face the housing and are connected to the housing. The filter component also has connecting edges on both sides, and the connecting edges are detachably connected to the connecting legs of the second support plate through the fasteners. The filter component also has a handle, which is located on the side of the filter component near the opening.

[0014] Preferably, it also includes an air exchange device, which is installed on the side wall of the housing and includes a conduit for supplying gas into the housing.

[0015] Preferably, the air exchange device includes a wind control system, at least one exchange device inlet connected to the wind control system, and an exchange device outlet installed on the housing, wherein the exchange device inlet and the exchange device outlet are respectively installed on air exchange sections opposite to each other on the housing.

[0016] The present invention also provides a hybrid locomotive, including the high-voltage box described in any one of the above claims.

[0017] The high-voltage box provided by this invention includes a box body, a high-voltage grounding device, a vacuum circuit breaker, a surge arrester, and a voltage transformer. The high-voltage portions of the high-voltage grounding device, the vacuum circuit breaker, and the voltage transformer are all installed inside the box body, while the low-voltage portions of the high-voltage grounding device, the vacuum circuit breaker, and the voltage transformer are all installed below the bottom of the box body. The high-voltage grounding device is installed at the bottom of the vacuum circuit breaker, and the surge arrester is installed on the side wall of the box body. One side of the vacuum circuit breaker is connected to the surge arrester, and the other side is connected to the voltage transformer. Furthermore, it includes a filter component and a support assembly for mounting the filter component. An air exchange section is provided on the side wall of the box body for gas flow. The support assembly is installed on the box body near the air exchange section, forming a chamber between the support assembly and the air exchange section. The filter component is placed inside the chamber, and the support assembly has a hollow portion for gas to flow into the chamber and pass through the filter component, as well as an opening for the filter component to be inserted into or removed from the chamber. The high-voltage box provided by this invention, through its high- and low-voltage partition design, effectively avoids electromagnetic interference while facilitating inspection and maintenance. By installing the high-voltage grounding device at the bottom of the vacuum circuit breaker, it avoids the prior art approach of installing the high-voltage grounding device on the side of the vacuum circuit breaker, effectively reducing the width of the box and facilitating its installation and arrangement on the roof of a shunting locomotive. Simultaneously, the cooperation between the support assembly and the box provides installation space for the disassembly and assembly of the filter components, ensuring that the externally exchanged gas entering the box meets requirements and preventing moisture or dust from affecting the equipment inside the box.

[0018] The hybrid locomotive provided by the present invention is equipped with the aforementioned high-voltage box. Since the high-voltage box has the aforementioned technical effects, the hybrid locomotive equipped with the high-voltage box should also have the corresponding technical effects. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a front view of a specific embodiment of the high-pressure box provided by the present invention;

[0021] Figure 2 This is a top view of a specific embodiment of the high-pressure box provided by the present invention;

[0022] Figure 3 An inverted schematic diagram of a specific embodiment of the high-pressure box provided by the present invention;

[0023] Figure 4 The high-voltage box housing provided by this invention;

[0024] Figure 5 This is a front view of the enclosure in the high-pressure box provided by the present invention;

[0025] Figure 6 This is a schematic diagram of the supporting main body in the high-voltage box provided by the present invention;

[0026] Figure 7 This is a schematic diagram of the assembly structure of the support body and the box body in the high-voltage box provided by the present invention;

[0027] Figure 8 This is a schematic diagram of the air exchange device in the high-pressure box provided by the present invention;

[0028] The components include: housing 1, first air exchange unit 101, cable inlet 102, second air exchange unit 103, drain outlet 104, cable outlet 105, air exchange device 106, air control system 106-1, exchange device inlet 106-2, exchange device outlet 106-3, filter component 107, handle 107-1, connecting edge 107-2, gas spring 108, drain trough 109, drain hole 110, first support plate 111, second support plate 112, fastener 113, high-voltage grounding device 2, low-voltage part of high-voltage grounding device 21, vacuum circuit breaker 3, low-voltage part of vacuum circuit breaker 31, surge arrester 4, voltage transformer 5, low-voltage part of voltage transformer 51, and monitoring device 6. Detailed Implementation

[0029] The core of this invention is to provide a high-voltage box and a hybrid locomotive, which can improve the reliability of shunting.

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please refer to Figures 1 to 8 , Figure 1 This is a front view of a specific embodiment of the high-pressure box provided by the present invention; Figure 2 This is a top view of a specific embodiment of the high-pressure box provided by the present invention; Figure 3An inverted schematic diagram of a specific embodiment of the high-pressure box provided by the present invention; Figure 4 The high-voltage box housing provided by this invention; Figure 5 This is a front view of the enclosure in the high-pressure box provided by the present invention;

[0032] Figure 6 This is a schematic diagram of the supporting main body in the high-voltage box provided by the present invention; Figure 7 This is a schematic diagram of the assembly structure of the support body and the box body in the high-voltage box provided by the present invention; Figure 8 This is a schematic diagram of the air exchange device in the high-pressure box provided by the present invention.

[0033] In this embodiment, the high-voltage box includes a box body 1, a high-voltage grounding device 2, a vacuum circuit breaker 3, a surge arrester 4, and a voltage transformer 5. The high-voltage parts of the high-voltage grounding device 2, the vacuum circuit breaker 3, and the voltage transformer 5 are all installed inside the box body 1, and the low-voltage parts of the high-voltage grounding device 2, the vacuum circuit breaker 3, and the voltage transformer 5 are all installed below the bottom of the box body 1. The high-voltage grounding device 2 is installed at the bottom of the vacuum circuit breaker 3, and the surge arrester 4 is installed on the side wall of the box body 1. One side of the vacuum circuit breaker 3 is connected to the surge arrester 4, and the other side is connected to the voltage transformer 5.

[0034] Specifically, the pressure relief section of the surge arrester 4 is located on the outside of the enclosure 1 for easy maintenance and repair. The bottom of the enclosure 1 has a base plate, and the bottom of the base plate is the vehicle machinery compartment of the shunting locomotive. The low-voltage sections of the high-voltage grounding device 2, vacuum circuit breaker 3, and voltage transformer 5 are all installed on the lower part of the base plate, i.e., within the vehicle machinery compartment. By adopting a high-low voltage partitioning design, the low-voltage sections of the vacuum circuit breaker 3, high-voltage grounding switch, and voltage transformer 5 are distributed within the vehicle machinery compartment at the bottom of the high-voltage enclosure 1. Specifically, the low-voltage section 21 of the high-voltage grounding device, the low-voltage section 31 of the vacuum circuit breaker, and the low-voltage section 51 of the voltage transformer are installed below the base plate of the enclosure 1, avoiding electromagnetic interference and facilitating maintenance and repair. Furthermore, by installing the high-voltage grounding device 2 at the bottom of the vacuum circuit breaker 3, the existing technology of installing the high-voltage grounding device 2 on the side of the vacuum circuit breaker 3 is avoided, effectively reducing the width of the enclosure 1 and facilitating the installation and arrangement of the high-voltage enclosure on the roof of the shunting locomotive.

[0035] Furthermore, it also includes a filter element 107 and a support assembly for mounting the filter element 107; an air exchange section is provided on the side wall of the housing 1 for gas circulation, the support assembly is mounted on the housing 1 near the air exchange section, and a chamber is formed between the support assembly and the air exchange section, the filter element 107 is placed in the chamber, and the support assembly has a hollow portion for gas to flow into the chamber and pass through the filter element 107, and an opening for the filter element 107 to be inserted or removed from the chamber. Preferably, the filter element 107 is filter cotton, ensuring that the gas exchanged externally is in a dry state when it enters the high-pressure chamber.

[0036] Specifically, the air exchange section can be provided with several through holes, preferably located on opposite side walls of the housing 1, for air intake and exhaust respectively, so as to achieve gas exchange in the housing 1 through natural air flow; the air exchange section can also be provided with an air exchange device 106. When the air exchange device 106 is provided, the air intake and exhaust positions are preferably opposite positions in the housing 1, or they can be on other side panels of the housing 1.

[0037] The high-voltage box provided by this invention is used for high-voltage circuit control of electric-electric hybrid locomotives. It realizes the opening and closing functions of the locomotive traction circuit, realizes voltage detection, realizes main circuit grounding protection, and realizes the conduction of the locomotive charging and discharging lines. It can effectively solve the traction and long-term shunting needs in the section. In terms of traction method, it avoids the single traction method of diesel locomotive or simple high-voltage traction in the prior art. Instead, it adopts two traction methods at the same time: high-voltage traction and power battery traction mode, which improves the reliability and efficiency of shunting. At the same time, by utilizing the cooperation between the support component and the box 1, it provides installation space for the disassembly and assembly of the filter component 107, which can ensure that the external exchange gas entering the box 1 meets the requirements and avoids the influence of moisture or dust on the equipment inside the box 1.

[0038] In some embodiments, a monitoring device 6 is also included. The monitoring device 6 is adjustablely mounted on the side wall of the enclosure 1 and is used to acquire the opening and closing status of the high-voltage grounding device 2, the vacuum circuit breaker 3, and the voltage transformer 5, as well as the cable arrangement status within the enclosure 1. Specifically, the cable arrangement status includes whether there are abnormal overlaps between cables, whether the cables have cracks, or whether they are loose. When the monitoring device 6 detects that any of the high-voltage grounding device 2, the vacuum circuit breaker 3, or the voltage transformer 5 is closed, or if any abnormality occurs in the cables, it issues an alarm signal to facilitate timely repair by personnel and ensure the reliability of the high-voltage equipment and high-voltage cables within the enclosure 1.

[0039] In some embodiments, the monitoring device 6 includes an image acquisition component and a lighting component. The image acquisition component is rotatably mounted inside or on the enclosure 1. Preferably, the image acquisition component is a camera, and the camera's rotation angle within the enclosure 1 is 180°-360°. The monitoring device 6, through the camera and supplementary lighting, can monitor the enclosure 1 and its internal equipment in a sealed, dark environment. The monitoring device 6 has a 360° axial wide-angle capability, achieving full coverage monitoring of the high-voltage equipment inside the high-voltage enclosure.

[0040] In some implementations, the monitoring device 6 is detachably connected to the housing 1, which facilitates the disassembly, assembly, and maintenance of the monitoring device 6.

[0041] In some embodiments, the high-voltage grounding device 2 includes a grounding blade and an operating handle for controlling the opening and closing of the grounding blade. The operating handle is installed at the bottom of the housing 1. Specifically, pushing the operating handle upward closes the grounding blade, and pushing the operating handle downward opens the grounding blade. By installing the operating handle at the bottom of the housing 1, operation is convenient, and the space occupied by the high-voltage grounding device 2 inside the housing 1 is effectively saved, thereby reducing the width of the housing 1.

[0042] In some embodiments, air exchange sections are provided on at least two opposite side walls of the housing 1, allowing gas to circulate. Specifically, the air exchange sections are preferably located on two opposite side walls of the housing 1, facilitating gas entry from one side of the housing 1 and exit from the other. Two air exchange sections can be provided on each of the two opposite side walls, or two air exchange sections can be provided on one side wall and one air exchange section on the other side wall, achieving a configuration where the housing 1 has two air exchange sections for air intake and one for air exhaust, or a configuration where two air exchange sections for air intake and two for air exhaust, or a configuration where one air exchange section for air intake and two for air exhaust. For example, two air exchange sections, namely the first air exchange section 101 and the second air exchange section 103, are provided on one side wall of the housing 1, and an air exchange device 106 is provided on the other side wall of the housing 1 that is opposite to it. Specifically, during the operation of the locomotive, the first air exchange section 101, the second air exchange section 103 and the third air exchange section can realize air exchange to prevent the insulation performance of the air in the housing 1 from decreasing in the long-term ionized environment, which could cause phenomena such as arcing and discharge in the housing 1.

[0043] In some embodiments, an air exchange device 106 is included, which is installed on the side wall of the housing 1. The air exchange device 106 includes a pipeline for supplying gas to the housing 1. That is, the exchange of gas inside the housing 1 can be achieved by the air exchange device 106. The air exchange device 106 can be passively controlled by the pressure difference between the shunting locomotive and the outside, or it can be used to periodically exchange air inside the high-pressure box 1 by setting up pipelines. Of course, the air exchange device 106 can also be replaced by an air exchange unit, which can achieve the exchange of gas inside the housing 1 by utilizing the natural flow of gas when the shunting locomotive is running.

[0044] In one specific embodiment, the air exchange device 106 includes a ventilation control system 106-1, at least one exchange device inlet 106-2 connected to the ventilation control system 106-1, and an exchange device outlet 106-3 installed on the housing 1. The exchange device inlet 106-2 and the exchange device outlet 106-3 are respectively installed on the air exchange section opposite to each other on the housing 1. Preferably, there are at least two exchange device inlets 106-2 to improve ventilation efficiency. The ventilation control system 106-1 can provide airflow, which enters the housing 1 through the exchange device inlets 106-2. The exchange device inlets 106-2 are located inside the housing 1 near the vacuum circuit breaker 3. This location is prone to ionization due to the high pressure. By placing the exchange device inlets 106-2 close to the vacuum circuit breaker 3, that is, concentrating the exchange device inlets 106-2 in the part that is prone to ionization and relatively high temperature rise, the ionized or high-temperature air is carried away and discharged through the exchange device outlet 106-3, ensuring safety.

[0045] In some embodiments, the support assembly includes a first support plate 111, a second support plate 112, and fasteners 113 for fixing the first support plate 111 and the second support plate 112. Both the first support plate 111 and the second support plate 112 extend with connecting legs, and the connecting legs of the first support plate 111 and the second support plate 112 face the housing 1 and are connected to the housing 1. The filter component 107 is also provided with connecting edges 107-2 on both sides, and the connecting edges 107-2 are detachably connected to the connecting legs of the second support plate 112 by fasteners 113. The filter component 107 is also provided with a handle 107-1, which is located on the side of the filter component 107 near the opening. Specifically, the first support plate 111 and the second support plate 112 provide installation space for the filter component 107. The opening is located on the upper side of the first support plate 111, and the filter component 107 is pushed into the opening through the handle 107-1. The second support plate 112 is preferably U-shaped and covers the surface of the first support plate 111. The connecting legs of the second support plate 112 are located on the left and right sides of the first support plate 111, and the hollow part is located in the middle of the second support plate 112. The connecting edge 107-2 of the filter component 107 is detachably connected to the connecting leg of the second support plate 112. The filter component 107 is also preferably U-shaped, with its legs forming the connecting edge 107-2. The fastener 113 is preferably a bolt for easy disassembly and assembly. The above configuration not only facilitates the quick installation or removal of the filter component 107 for easy replacement and maintenance, but also ensures the stability of the filter component 107 during use and improves its reliability through the fastener 113.

[0046] In some embodiments, the bottom of the enclosure 1 is provided with a drain hole 110, a drain channel 109 for water accumulating inside the enclosure 1 to flow into the drain hole 110, and a drain outlet 104 for water accumulating inside the enclosure 1 to flow out. Specifically, water accumulating inside the enclosure 1 is collected in the drain hole 110 through the drain channel 109, then collected in the drain outlet 104 through the drain hole 110, and finally flows out from the drain outlet 104 of the enclosure 1. By providing a drainage function inside the enclosure 1, and by providing the drain channel 109 and drain hole 110 through the welding, skin, and crossbeam parts of the enclosure 1, the insulation inside the enclosure 1 is ensured to remain unaffected in the event of seal failure or condensation.

[0047] In some embodiments, the side wall of the enclosure 1 is provided with a cable inlet 102 and the bottom of the enclosure 1 is provided with a cable outlet 105. The cable enters the cable body through the cable inlet 102 and after the connection of each device is realized, it extends out from the cable outlet 105. Setting the cable outlet 105 at the bottom of the enclosure 1 can facilitate the arrangement and reduce the space occupied by the enclosure 1.

[0048] In some embodiments, the box 1 includes a main body and a lid, and the lid is detachably connected to the main body by a gas spring 108, which is secure and easy to assemble and disassemble.

[0049] In some implementations, the vacuum circuit breaker 3 can be single-wire controlled or double-wire controlled. Depending on the distribution of the high-voltage box, the vacuum circuit breaker 3 can be integrated with the high-voltage grounding device 2 or can be a split-type grounding switch, which can be selected according to actual needs.

[0050] In one specific embodiment, the high-voltage cable enters the high-voltage box 1 through the high-voltage cable inlet 102. The high-voltage cable connects the vacuum circuit breaker 3 and the voltage transformer 5. The cable outlet 105 is connected to the surge arrester 44. High-voltage energization is achieved through the vacuum circuit breaker 3. The vacuum circuit breaker 3 integrates a high-voltage grounding device 2, which is integrated on the base plate of the vacuum circuit breaker 3. The rotation position of the high-voltage grounding device 2, i.e. the position of the grounding blade, is located at the lower part of the insulator of the vacuum circuit breaker 3.

[0051] This high-voltage box, through its structural design encompassing control, air exchange, drainage, high and low voltage protection, and monitoring, meets the functional requirements of electric-electric hybrid locomotives, satisfies the safety and environmental protection needs of shunting in urban areas, and simultaneously meets the requirements for equipment installation, electric field distribution, and electromagnetic compatibility. It enables air exchange between the high-voltage box and its housing 1, with an air exchange section to facilitate air convection and exchange. The drainage function of housing 1 is addressed with a drainage channel 109 at the bottom, penetrating the bottom of housing 1. In the event of water accumulation, water flows through the drainage channel 109 into the drainage hole 110 and is discharged from the bottom of the high-voltage box via a hose or connector. A dual-wire controlled vacuum grounding device ensures the reliability of the high-voltage box's opening and closing. This high-voltage box possesses drainage, air exchange, and monitoring functions, while also realizing the main circuit functions for locomotive dynamic traction and static charging. It solves the problems of low integration, insufficient installation space, and high maintenance difficulty associated with high-voltage boxes, exhibiting characteristics such as high component integration, small footprint, and good maintainability.

[0052] In addition to the high-voltage box mentioned above, the present invention also provides a hybrid locomotive including the high-voltage box mentioned above. The hybrid locomotive is an electric-electric hybrid locomotive. For the structure of other parts, please refer to the prior art, which will not be described in detail here.

[0053] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0054] The high-voltage box provided by this invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make several improvements and modifications to this invention without departing from the principles of this invention, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A high pressure tank characterized by, The utility model relates to a high-voltage switch cabinet, comprising a cabinet (1), a high-voltage grounding device (2), a vacuum circuit breaker (3), a lightning arrester (4) and a voltage transformer (5), the high-voltage grounding device (2), the vacuum circuit breaker (3) and the high-voltage part of the voltage transformer (5) are all installed in the cabinet (1), the low-voltage part of the high-voltage grounding device (2), the vacuum circuit breaker (3) and the voltage transformer (5) are all installed below the bottom of the cabinet (1), the high-voltage grounding device (2) is installed at the bottom of the vacuum circuit breaker (3), the lightning arrester (4) is installed on the side wall of the cabinet (1), one side of the vacuum circuit breaker (3) is connected with the lightning arrester (4), and the other side is connected with the voltage transformer (5); And further comprising a filter component (107) and a support assembly for mounting the filter component (107), an air exchange part is provided on the side wall of the cabinet (1) for gas circulation, the support assembly is mounted on the cabinet (1) near the air exchange part, a cavity is formed between the support assembly and the air exchange part, the filter component (107) is placed in the cavity, and the support assembly is provided with a hollow part for gas to flow into the cavity to pass through the filter component (107) and an opening part for the filter component (107) to be inserted or taken out in the cavity; The high-voltage grounding device (2) comprises a grounding blade and an operating handle for controlling the opening and closing of the grounding blade, and the operating handle is installed below the bottom of the cabinet (1); The support assembly comprises a first support plate (111), a second support plate (112) and a fastener (113) for fixing the first support plate (111) and the second support plate (112), the first support plate (111) and the second support plate (112) are both extended with a connecting leg, and the connecting legs of the first support plate (111) and the second support plate (112) are both directed towards the cabinet (1) and connected with the cabinet (1); both sides of the filter component (107) are further provided with a connecting edge (107-2), the connecting edge (107-2) and the connecting leg of the second support plate (112) are detachably connected through the fastener (113); the filter component (107) is further provided with a handle (107-1) on one side close to the opening part. The air exchange device (106) is installed on the side wall of the box (1), and comprises a pipeline for providing gas into the box (1); the air exchange device (106) comprises a wind control system (106-1), at least one exchange device inlet (106-2) connected with the wind control system (106-1), and an exchange device outlet (106-3) installed on the box (1), and the exchange device inlet (106-2) and the exchange device outlet (106-3) are installed on the air exchange parts of the box (1) at positions opposite to each other.

2. The high pressure tank of claim 1, wherein, The monitoring device (6) is adjustably installed on the side wall of the box (1) and is used to acquire the opening and closing states of the high-voltage grounding device (2), the vacuum circuit breaker (3) and the voltage transformer (5), and to acquire the arrangement state of the cables in the box (1).

3. The high pressure tank of claim 2, wherein, The monitoring device (6) comprises an image acquisition part and an illumination part, the image acquisition part is rotatably installed in the box (1), and the image acquisition part is rotatably installed on the box (1).

4. The high pressure tank of claim 2, wherein, The monitoring device (6) is detachably connected with the box (1).

5. The high pressure tank of claim 1, wherein, The bottom of the box (1) is provided with a drain hole (110), a drain groove (109) for flowing the accumulated water in the box (1) into the drain hole (110), and a drain port (104) for flowing out the accumulated water in the box (1).

6. A hybrid locomotive comprising a high pressure tank, characterized in that, The high-voltage box is the high-voltage box according to any one of claims 1 to 5.

Images