CN215871209U - Explosion-proof type transformer rectification unit and shell structure thereof - Google Patents

Abstract

The utility model relates to an explosion-proof type power transformation rectifying unit and a shell structure thereof, wherein the shell structure of the explosion-proof type power transformation rectifying unit comprises an explosion-proof transformer shell, and the explosion-proof transformer shell comprises a body, wherein the bottom of the body is provided with a base for mounting a transformer; the first side surface of the body is provided with an explosion-proof rectifying unit shell, and the explosion-proof rectifying unit shell is used for installing a rectifying unit; the top of body, and/or except that the buckled plate is connected to other sides except that first side, the buckled plate is used for carrying out the heat exchange with the air in order to right the transformer dispels the heat. The scheme of the utility model solves the problems of complex heat dissipation structure and high heat dissipation cost of the existing explosion-proof type power transformation rectifying unit.

Description

Explosion-proof type transformer rectification unit and shell structure thereof

Technical Field

The utility model relates to the technical field of motor electricity. Specifically, the utility model relates to an explosion-proof type power transformation rectifying unit and a shell structure thereof.

Background

With the continuous development of power electronic technology, products with an explosion-proof function are more and more favored by users when power supply equipment is modified in various industries such as oil gas, ships, mines, electric power, chemical industry, metallurgy and the like. The explosion-proof transformer rectifier unit is a device for converting alternating current into direct current, generally comprises high-voltage switches, a transformer, a rectifier, a filter and other equipment, and can be used as a direct current power supply. The transformer reduces the alternating current voltage, and the rectifier converts the reduced alternating current into direct current. The transformer rectifier unit is also large in volume and weight due to the transformer. When equipment is assembled, a corresponding shell structure is required to be arranged, then all equipment elements are arranged in a cavity in the shell, the shell structure is designed in an integral sealing mode, measures such as salt mist resistance, acidification and the like are structurally taken, a corresponding cooling process is arranged on the shell, and the cooling mode generally adopts air cooling, water cooling, oil immersion and the like. However, the cost of using these cooling methods is generally high, and the cooling effect is not high. Therefore, how to obtain a transformer rectifier unit heat dissipation structure with a simple structure and a high heat dissipation effect is very important.

SUMMERY OF THE UTILITY MODEL

The utility model provides an explosion-proof type power transformation rectifying unit and a shell structure thereof, which at least solve the problems of complex heat dissipation structure and high heat dissipation cost of the existing explosion-proof type power transformation rectifying unit.

In order to solve at least the above technical problems, the utility model provides, in a first aspect, a housing structure of an explosion-proof type power transformation and rectification unit, including an explosion-proof transformer housing, which includes a body, a base is provided at the bottom of the body for mounting a transformer; the first side surface of the body is provided with an explosion-proof rectifying unit shell, and the explosion-proof rectifying unit shell is used for installing a rectifying unit; the top of body, and/or except that the buckled plate is connected to other sides except that first side, the buckled plate is used for carrying out the heat exchange with the air in order to right the transformer dispels the heat.

In one embodiment, the explosion-proof transformer shell comprises a first side face, a second side face, a third side face, a fourth side face and a top cover, wherein the first side face and the second side face are opposite side faces, the first side face is provided with a first flange for fixedly connecting the explosion-proof rectifying unit shell, the second side face is provided with a second flange for installing an explosion-proof high-pressure chamber shell, the third side face and the fourth side face are opposite side faces, and the third side face and the fourth side face are both connected with corrugated plates.

In one embodiment, the top cover adopts an arch structure for increasing the heat dissipation area.

In one embodiment, the top cover is provided with a plurality of slots, each slot is used for inserting one heat dissipation fin, and the shape and the size of each heat dissipation fin are the same.

In one embodiment, a first front door is arranged on one side of the explosion-proof rectifying unit shell, which is far away from the first side face of the explosion-proof transformer shell, and is used for installing and overhauling rectifying equipment.

In one embodiment, the first front door is further provided with at least one maintenance window so as to facilitate windowing for local maintenance.

In one embodiment, a first wiring cavity is formed in one side of the explosion-proof rectifying unit shell corresponding to the third side face of the explosion-proof transformer shell, and a wiring bar is arranged in the first wiring cavity and used for installing a wiring connector.

In one embodiment, the explosion-proof rectifying unit shell is further provided with a heat pipe radiator and a fan, and the heat pipe radiator is mounted on one side of the explosion-proof rectifying unit shell corresponding to the fourth side face of the explosion-proof transformer shell through a flange and used for radiating heat for the rectifying unit; the fan is arranged at the heat pipe radiator and used for increasing the heat dissipation effect of the heat pipe radiator.

In one embodiment, a second front door is arranged on one side of the explosion-proof high-voltage chamber shell, which is far away from the second side face of the explosion-proof transformer shell, a second wiring cavity is arranged on the top of the explosion-proof high-voltage chamber shell, and cover plates are arranged on two sides of the explosion-proof high-voltage chamber shell and used for installing high-voltage switching devices.

In a second aspect, the utility model further provides an explosion-proof power transformation rectifying unit, which comprises the housing structure in the embodiments of the first aspect, wherein a transformer is installed in the explosion-proof transformer housing, and a rectifying unit is installed in the explosion-proof rectifying unit housing.

The top of the body of the explosion-proof transformer shell and/or the side surfaces except the side surfaces used for connecting other shell structures are/is provided with the corrugated plates so as to radiate the equipment in the transformer shell, and the corrugated plates are naturally cooled, so that the radiating area of each surface of the shell is increased, and the radiating capacity is increased. Generally speaking, through changing the shell structure setting, can effectively dispel the heat according to the equipment condition of generating heat in the reality to save equipment occupation space when the maximize utilizes the natural heat dissipation mode.

Drawings

The above and other objects, features and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present invention are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:

fig. 1 is a schematic view schematically showing a structure of a case of an explosion-proof type power transformation rectifying unit according to an embodiment of the present invention;

fig. 2 is a schematic view schematically showing the structure of an explosion-proof transformer case according to an embodiment of the present invention;

fig. 3 is a schematic view schematically illustrating a top cover structure of an explosion-proof transformer case according to an embodiment of the present invention;

fig. 4 is a schematic diagram schematically showing the structure of an explosion-proof rectifying unit casing according to an embodiment of the present invention;

FIG. 5 is a schematic diagram schematically illustrating an explosion proof high pressure chamber housing structure according to an embodiment of the utility model;

fig. 1 to 5 include: the anti-explosion transformer comprises an anti-explosion transformer shell 10, an anti-explosion rectifying unit shell 20, an anti-explosion high-pressure chamber shell 30, a third side 101, a top cover 102, a radiating fin 1021, a second side 103, a first side 104, a base 105, a first front door 201, a heat pipe radiator 202, a wiring connector 203, a maintenance window 204, a display screen 205, a second wiring cavity 301, a second front door 302, a handle 303 and a third flange connecting surface 304.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The following detailed description of embodiments of the utility model refers to the accompanying drawings.

Fig. 1 is a schematic view schematically showing a structure of a case of an explosion-proof type power transformation rectifying unit according to an embodiment of the present invention.

As shown in fig. 1, the utility model proposes a housing structure of an explosion-proof type power transformation and rectification unit, which includes an explosion-proof transformer housing 10 including a body and a base at the bottom of the body. And further comprises an explosion-proof rectifying unit casing 20 mounted on the first side surface of the body. The explosion-proof transformer housing 10 includes a body and a bottom base to mount the transformer. The corrugated plate may be used for dissipating heat from the device in the explosion-proof transformer housing 10, and the heat dissipation mode of the corrugated plate is natural heat dissipation, at the top of the body of the explosion-proof transformer housing 10 and at other sides except the first side. For example, the explosion-proof transformer housing 10 is internally installed with a self-cooling transformer, and the explosion-proof transformer housing 10 increases a heat dissipation area by forming the top of the housing and the other side of the first side as corrugated plates. The bottom of the explosion-proof transformer shell can be a base with a forklift hole, so that the transportation is convenient. The above is a brief description of the housing structure of the explosion-proof type power transformation and rectification unit in the present invention, and the arrangement form of the housing structure of the explosion-proof type power transformation and rectification unit will be described in detail next.

Fig. 2 and 3 are schematic views schematically showing an explosion-proof transformer housing 10 according to an embodiment of the present invention. It will be appreciated that the explosion proof transformer housing 10 shown in fig. 2 and 3 may be implemented in the exemplary scenario shown in fig. 1, and therefore what is described with respect to fig. 1 also applies to fig. 2 and 3.

In one implementation scenario, as shown in fig. 2, the explosion-proof transformer housing 10 includes a first side 104, a second side 103, a third side 101, a fourth side (not shown), and a top cover 102. The first side surface 104 and the second side surface 103 are opposite side surfaces, and the first side surface 104 and the second side surface 103 may be flange connection surfaces, so that a first flange for fixedly connecting the explosion-proof rectifying unit housing 20 is provided on the first side surface 104. The second side 103 is provided with a second flange for mounting an explosion-proof high-pressure chamber housing. The third side 101 and the fourth side are opposite sides, and the third side and the fourth side may be connected to corrugated plates to increase the contact area between the explosion-proof transformer housing 10 and the air, thereby increasing the heat dissipation area. In one application scenario, the third side 101 (also referred to as a front side plate) or the fourth side (also referred to as a rear side plate) may be configured as a corrugated plate structure, and the top may be configured as a corrugated plate, so as to increase the heat dissipation area. Through set up the ripple plate structure to explosion-proof transformer housing 10's preceding curb plate, posterior lateral plate and/or top in this scheme, increased the heat radiating area of casing to adopt natural cooling's mode, effectively reduced the space area of equipment.

Further, the front side plate (i.e. the third side), the rear side plate (i.e. the fourth side) and the top cover of the top of the body of the explosion-proof transformer housing 10 may be detachably connected to facilitate operations such as docking and maintenance of the housing after installation of the transformer and other devices. In addition, the left side (corresponding to the second side) and the right side (corresponding to the first side) of the explosion-proof transformer housing 10 are respectively provided with a flange connection surface, one of the flange connection surfaces is used for connecting with the flange connection surface of the explosion-proof rectifying unit housing 20, so as to facilitate assembly with other equipment, for example, the first side is provided with a flange for fixedly connecting with the explosion-proof rectifying unit housing.

In one implementation scenario, as shown in fig. 3, in a situation that the explosion-proof transformer housing 10 is highly fixed, in order to maximize the heat dissipation area, the top cover 102 may adopt an arch structure, so that the surface area of the top cover is larger, and thus the area of the top cover contacting with air is larger, and the heat dissipation effect is better when the heat exchange is performed with air. It will be appreciated that the dome design of the dome is illustrative and not limiting and that those skilled in the art can also provide other dome shapes, such as triangular, to increase the heat dissipation from the dome portion. Furthermore, a plurality of slots can be formed in the top cover, and a heat dissipation fin 1021 can be inserted into each slot, so that the heat dissipation area is increased. The shape and the size of each radiating fin are the same. For example, the heat dissipating fins 1021 may be a plate-like, sheet-like structure made of aluminum alloy, brass, or bronze. In an implementation scenario, the top cover 102 may directly adopt a gear-type heat sink structure composed of a plurality of heat dissipation fins 1021, that is, the top cover 102 serves as a heat dissipation bottom plate, and the plurality of heat dissipation fins 1021 are inserted into the top cover to increase a heat dissipation effect.

The above is a detailed description of the structure of the explosion-proof transformer case 10, and the structure of the explosion-proof rectifying unit case 20 connected to the explosion-proof transformer will be described in detail.

Fig. 4 is a schematic diagram schematically showing the explosion-proof rectifying unit case 20 according to the embodiment of the present invention. It will be appreciated that the explosion proof rectifying unit housing shown in fig. 4 may be implemented in the exemplary scenario shown in fig. 1, and therefore what is described with respect to fig. 1 also applies to fig. 4.

The explosion-proof rectifying unit casing 20 is a flange connection surface on a side close to the first side surface, and is used for being connected with the explosion-proof transformer casing 10. As shown in fig. 4, a first front door 201 is provided on a side of the explosion-proof rectifying unit case 20 away from the first side surface of the explosion-proof transformer case, and the first front door 201 is openable and closable. When assembling the rectifier unit and its related components, the first front door 201 may be opened for installation of the apparatus. If a component in the explosion-proof rectification unit casing 20 is in failure, the first front door 201 can be opened to perform maintenance and replacement of the equipment.

Furthermore, at least one maintenance window 204 may be provided on the first front door 201 on the front side of the explosion-proof rectification unit housing 20, and the maintenance window 204 may face the installation position of each component, for example, so as to facilitate the equipment maintenance through partial opening. Therefore, the maintenance window 204 can be opened at the position of the shell corresponding to the fragile device according to the installation position of the device in the shell, so that a maintenance worker can directly open the maintenance window 204 for maintenance without opening the whole first front door 201. Furthermore, the aforementioned first front door 201 may further be provided with a display screen 205 and a keyboard, so as to facilitate information display and man-machine operation. A debugging port, a control button, and the like of the rectifying unit may also be arranged on the first front door 201, so that a worker may perform corresponding control operations according to actual situations. For example, when an equipment failure occurs and a shutdown is required, a scram button provided on the first front door 201 may be operated to urgently cut off the power.

In an implementation scenario, a first wiring cavity is further disposed on a side of the explosion-proof rectifying unit housing 20 corresponding to the third side of the explosion-proof transformer housing, and a wiring bar may be disposed in the first wiring cavity, so that the wiring connector 203 may be disposed. The first wiring cavity may have a groove structure, for example. The wiring connector 203 is arranged at the groove position of the shell, so that the space structure of the shell can be effectively utilized, and the occupied space of the explosion-proof rectifying unit shell 20 is reduced. When the first wiring chamber is provided, it is possible to select a position where no component is mounted, and the position of the first wiring chamber is not limited to the left side of the explosion-proof rectifying unit case 20, and may be provided on the top or right side of the case.

In order to achieve effective heat dissipation from the explosion-proof rectifying unit casing 20, a heat sink may be further provided on the aforementioned explosion-proof rectifying unit casing 20. In one application scenario, the heat sink may employ a heat pipe heat sink 202. The heat pipe radiator 202 may be connected to the housing on the side corresponding to the fourth side of the body by a flange. In view of this, components that generate relatively large heat, such as capacitors, rectifier bridges, and discharge resistors, mounted inside the explosion-proof rectifier unit casing 20 and used for the rectifier function, may be placed on the heat pipe radiator 202 to dissipate heat. For example, a rectifier bridge and a discharge resistor may be provided at the heat pipe heat sink 202. The heat dissipation structure can also adopt a water-cooling plate, the water-cooling plate is attached to the outer side of the explosion-proof rectifying unit shell 20, and the easy-heating device is arranged at the position, so that heat dissipation is performed by the water-cooling plate.

Further, the heat pipe radiator 202 may be disposed on the side of the explosion-proof rectification unit casing corresponding to the fourth side, and the groove may be disposed on the opposite side of the explosion-proof rectification unit casing 20, so as to adapt to the casing structure. It is to be understood that the above positional arrangements are exemplary only and not limiting, and that adaptation may be made as desired by those skilled in the art. Furthermore, in order to effectively improve the heat dissipation effect of the heat pipe radiator 202, a fan corresponding to the heat pipe radiator 202 may be further provided, and the fan may be disposed at the heat pipe radiator 202, for example, at the bottom of the heat pipe radiator 202.

The foregoing description has been made with respect to the structure of the explosion-proof transformer case 10 and the specific structure of the explosion-proof rectifying unit. When the transformer and the rectifying unit are used for supplying power, corresponding equipment such as a high-voltage switch and a breaker is required to be connected. Therefore, the scheme of the utility model is also provided with an explosion-proof high-pressure chamber shell 30 structure so as to install corresponding disconnecting switches, circuit breakers, wiring terminals and the like.

Fig. 5 is a schematic view schematically showing an explosion-proof high pressure chamber housing 30 according to an embodiment of the present invention. It will be appreciated that the explosion proof high pressure chamber housing 30 shown in fig. 5 may be implemented in the exemplary scenario shown in fig. 1, and thus what is described with respect to fig. 1 is equally applicable to fig. 5.

As shown in fig. 5, the explosion-proof high-voltage chamber housing 30 is mainly used for mounting high-voltage switches, circuit breakers, and the like. In one application scenario, a second wiring cavity 301 is disposed at the top of the explosion-proof high-pressure chamber housing 30, and a corresponding horn nozzle is disposed on the second wiring cavity 301 to facilitate external wiring operation. A second front door 302 is arranged on one side of the explosion-proof high-pressure chamber shell far away from the second side surface, and a cover plate is arranged on one side corresponding to the third side surface and the fourth side surface, so that a shell structure for mounting the high-pressure switch is formed. In order to mount the explosion-proof high-pressure chamber housing 30 to the explosion-proof transformer housing 10, a third flange connection face 304 may be provided on a side of the explosion-proof high-pressure chamber housing 30 close to the first side face, and a flange may be protruded out of the housing for external assembly. In order to implement the installation and maintenance operation, the second front door 302 of the explosion-proof high-pressure chamber housing 30 may be provided with an openable and closable front door structure. In one implementation scenario, an openable and closable second front door 302 may be disposed on a side of the explosion-proof high-pressure chamber housing 30 away from the first side, so that a worker can directly open the second front door 302 for installation and maintenance operations of the equipment. Further, a handle 303 may be provided on the second front door 302 to facilitate the switching operation of the high-voltage switch state by the operator. An observation window may also be provided on the second front door 302 to facilitate observation of the state of the high-voltage switch inside the explosion-proof high-voltage chamber housing 30. Similarly, a plurality of maintenance windows may be disposed on the housing 30, and the maintenance windows are opposite to the vulnerable components inside the housing, so that when performing maintenance, the worker may not need to open the whole second front door 302, which makes the maintenance more convenient.

In another aspect of the present invention, there is also provided an explosion-proof power transformation rectification unit, including the housing structure in the foregoing embodiments, wherein a transformer can be installed in the explosion-proof transformer housing, and a rectification unit can be installed in the explosion-proof rectification unit housing.

In the scheme of the utility model, the shell structure of the explosion-proof type power transformation rectifying unit is improved, the heat dissipation area of the explosion-proof transformer shell 10 is increased by utilizing the corrugated plate structure, so that high-efficiency natural heat dissipation is realized, and the corresponding heat dissipation mechanism is arranged on the shell 20 of the explosion-proof rectifying unit, so that high-efficiency heat dissipation of the rectifying unit is realized. Shell structure improves in this scheme and has increased natural radiating efficiency, and equipment cooling cost is lower, the cooling effect is better, can use in fields such as oil gas, boats and ships, and the explosion-proof requirement is satisfied to the casing, and the cooling effect is good. Therefore, the scheme of the utility model can be applied to the field of ships such as offshore platforms and the like, and meets the requirements of corrosion resistance and salt mist resistance.

In the above description of the present specification, the terms "fixed," "mounted," "connected," or "connected," and the like, are to be construed broadly unless otherwise expressly specified or limited. For example, with the term "coupled", it can be fixedly coupled, detachably coupled, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship. Therefore, unless the specification explicitly defines otherwise, those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.

In light of the foregoing description of the present specification, those skilled in the art will also understand that terms used to indicate orientation or positional relationship, such as "upper", "lower", "front", "rear", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings of the present specification, which are for the purpose of convenience in explaining aspects of the present invention and simplifying the description, and do not explicitly or implicitly indicate that the device or element concerned must have the particular orientation, be constructed and operated in the particular orientation, and therefore the above-described orientation or positional relationship terms should not be interpreted or construed as limiting the aspects of the present invention.

In addition, the terms "first" or "second", etc. used in this specification are used to refer to numbers or ordinal terms for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present specification, "a plurality" means at least two, for example, two, three or more, and the like, unless specifically defined otherwise.

While various embodiments of the present invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous modifications, changes, and substitutions will occur to those skilled in the art without departing from the spirit and scope of the present invention. It should be understood that various alternatives to the embodiments of the utility model described herein may be employed in practicing the utility model. It is intended that the following claims define the scope of the utility model and that the module compositions, equivalents, or alternatives falling within the scope of these claims be covered thereby.

Claims (10)

1. An explosion-proof type transformer rectifier unit's shell structure characterized in that includes:

the explosion-proof transformer shell comprises a body, wherein a base is arranged at the bottom of the body and used for mounting a transformer;

the first side surface of the body is provided with an explosion-proof rectifying unit shell, and the explosion-proof rectifying unit shell is used for installing a rectifying unit;

the top of body, and/or except that the buckled plate is connected to other sides except that first side, the buckled plate is used for carrying out the heat exchange with the air in order to right the transformer dispels the heat.

2. The housing structure according to claim 1, wherein the explosion-proof transformer housing comprises a first side, a second side, a third side, a fourth side and a top cover, the first side and the second side are opposite sides, the first side is provided with a first flange for fixedly connecting the explosion-proof rectifying unit housing, the second side is provided with a second flange for mounting an explosion-proof high-pressure chamber housing, the third side and the fourth side are opposite sides, and the third side and the fourth side are connected with corrugated plates.

3. The housing structure of claim 2, wherein the top cover is arched to increase heat dissipation area.

4. The shell structure of claim 3, wherein the top cover is provided with a plurality of slots, each slot is used for inserting one heat dissipation fin, and the heat dissipation fins are the same in shape and size.

5. The case structure according to claim 1, wherein a side of the explosion-proof rectifying unit case away from the first side of the explosion-proof transformer case is provided with a first front door for installation and maintenance of rectifying equipment.

6. The housing structure of claim 5 wherein said first front door is further provided with at least one service window to facilitate access for local maintenance.

7. The case structure according to claim 2, wherein a side of the explosion-proof rectifying unit case corresponding to the third side of the explosion-proof transformer case is provided with a first wiring cavity in which a wiring bar is provided for mounting a wiring connector.

8. The shell structure of claim 2, wherein the explosion-proof rectifying unit shell is further provided with a heat pipe radiator and a fan, and the heat pipe radiator is flange-mounted on one side of the explosion-proof rectifying unit shell corresponding to the fourth side of the explosion-proof transformer shell and used for radiating heat for the rectifying unit; the fan is arranged at the heat pipe radiator and used for increasing the heat dissipation effect of the heat pipe radiator.

9. The housing structure according to claim 2, wherein a second front door is provided on a side of the explosion-proof high-pressure chamber housing away from the second side of the explosion-proof transformer housing, a second wiring cavity is provided on the top, and cover plates are provided on both sides for mounting high-voltage switching devices.

10. An explosion-proof power transformation rectifying unit, which is characterized by comprising a shell structure as claimed in any one of claims 1 to 9, wherein a transformer is arranged in the explosion-proof transformer shell, and a rectifying unit is arranged in the explosion-proof rectifying unit shell.

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