CN111987614A

CN111987614A - Switch cabinet

Info

Publication number: CN111987614A
Application number: CN202010807363.1A
Authority: CN
Inventors: 王伟; 曾国伟; 胡金磊; 欧树华; 王文博; 苏超; 黄石华; 唐琦; 吴昆泰
Original assignee: Qingyuan Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Qingyuan Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2020-11-24
Anticipated expiration: 2040-08-12
Also published as: CN111987614B

Abstract

The invention relates to the technical field of power equipment, and particularly discloses a switch cabinet which comprises a cabinet body, wherein a containing cavity is formed in the cabinet body, a wiring device can be contained in the containing cavity, the wiring device is provided with a first block body and a second block body, the first block body and the second block body are vertically arranged, the first block body and the second block body are communicated internally and are provided with secondary equipment, one side, away from the cavity bottom surface of the containing cavity, of the second block body is provided with a panel, the panel is provided with a plurality of through holes, the through holes are used for arranging secondary elements of the secondary equipment, one end, close to the cavity bottom surface of the containing cavity, of the first block body is provided with a wiring contact, the cavity bottom surface of the containing cavity is provided with a wiring seat corresponding to the wiring contact, the wiring contact can be inserted into the wiring seat, the bottom of the first block body is provided with a. The switch cabinet has short maintenance time, can quickly recover the normal operation of a power system, and shortens the power failure time of a user side.

Description

Switch cabinet

Technical Field

The invention relates to the technical field of power equipment, in particular to a switch cabinet.

Background

In the power equipment, especially a switch cabinet, the switch cabinet is mainly applied to the control and protection of a power system, and the fault part can be quickly cut off from the power grid when the power equipment or the line has a fault according to the input or exit of the power equipment or the line during the operation of the power grid, so that the normal operation of the fault-free part in the power grid and the safety of equipment maintenance personnel are ensured.

In the existing high-voltage switch cabinet, secondary elements of secondary equipment such as secondary protection equipment, control buttons, lamps and the like are generally installed in an instrument room at the front upper part of the cabinet body, so the secondary equipment is generally arranged integrally with the primary equipment. When arcing faults occur in the switch cabinet body, high-temperature and high-pressure gas is upwards decompressed through the decompression channel, and part of the high-temperature gas rushes into the instrument room to damage secondary circuits and secondary elements of the instrument room. When the maintenance needs to be recovered, the secondary elements and the secondary lines need to be completely replaced, and the rewiring is time-consuming. Moreover, when a secondary element or secondary protection fault occurs, long-time troubleshooting is required, and when a part of elements need to be replaced, long-time wiring is required, so that the maintenance time is long, and the normal operation of the power system is not easy to recover quickly.

Disclosure of Invention

An object of the embodiments of the present invention is to provide a switch cabinet, which has short maintenance time, can quickly recover the normal operation of a power system, and shortens the power failure time of a user terminal.

To achieve the purpose, the embodiment of the invention adopts the following technical scheme:

the utility model provides a switch cabinet, which comprises a cabinet body, the cabinet body is provided with a containing cavity, the containing cavity can contain a wiring device, the wiring device is provided with a first block and a second block, the first block and the second block are vertically arranged, the first block and the second block are communicated with each other and are provided with secondary equipment, one side of the second block, which is far away from the cavity bottom surface of the containing cavity, is provided with a panel, the panel is provided with a plurality of through holes, the through holes are used for arranging secondary elements of the secondary equipment, one end of the first block, which is close to the cavity bottom surface of the containing cavity, is provided with a wiring seat corresponding to the wiring contact, the wiring contact can be inserted into the wiring seat, the bottom of the first block is provided with a guide wheel, one end surface of the containing cavity, which is close to the guide wheel, is provided with a guide rail, the guide wheel can rotate on the guide rail.

As a preferable scheme of the switch cabinet, a temperature sensor, a wireless communication module and a controller are arranged on the cavity wall of the accommodating cavity, the temperature sensor and the wireless communication module are respectively connected with the controller, and the wireless communication module is in communication connection with the server.

As a preferred solution of the switch cabinet, a dry powder injector is arranged in the accommodating cavity, and the dry powder injector is connected with the controller.

As a preferred scheme of the switch cabinet, a cabinet door is arranged at a cavity opening of the accommodating cavity, the cabinet door can block the cavity opening of the accommodating cavity, a switch module is arranged between the cabinet door and the cavity opening of the accommodating cavity, the switch module is used for locking or loosening the cabinet door, and the switch module is connected with the controller.

As a preferable scheme of the switch cabinet, an expansion airbag unit is arranged at one end of the first block, which is close to the cavity bottom surface of the accommodating cavity, and the expansion airbag unit is connected with the controller.

As a preferable scheme of the switch cabinet, the panel is provided with heat dissipation holes.

As a preferred scheme of the switch cabinet, a flame-retardant layer is arranged on the wiring device.

As a preferable scheme of the switch cabinet, a handle is arranged at one end, away from the guide wheel, of the second block body.

As a preferable scheme of the switch cabinet, a handle is arranged at one end of the first block body, which is far away from the wiring contact.

As a preferred scheme of the switch cabinet, a limiting block is arranged at one end, deviating from the wiring contact, of the first block body, and the limiting block can limit the first block body to be close to the bottom surface of the cavity containing the cavity.

The embodiment of the invention has the beneficial effects that:

the cabinet body is provided with a containing cavity, the containing cavity can contain a wiring device, the wiring device is provided with a first block and a second block, the first block and the second block are vertically arranged, and the first block and the second block are communicated inside and provided with secondary equipment. According to the embodiment of the invention, the primary equipment is placed at the top of the first block body, and the secondary equipment is arranged in the first block body and the second block body, so that the secondary equipment is sealed in the wiring device, the primary equipment can be separated from the secondary equipment, and further the secondary element is effectively prevented from being damaged by arcing gas. The second block deviates from the one side of the chamber bottom surface that holds the chamber and is provided with the panel, and the panel is provided with a plurality of through-holes, and the through-hole is used for setting up the secondary component of secondary equipment, and the user can directly operate the secondary component of secondary equipment on the panel, and when the secondary component was display screen or pilot lamp, also can show the information of secondary equipment through the secondary component on the panel. In addition, one end, close to the cavity bottom surface of the accommodating cavity, of the first block body is provided with a wiring contact, the cavity bottom surface of the accommodating cavity is provided with a wiring seat corresponding to the wiring contact, the wiring contact can be inserted into the wiring seat, the bottom of the first block body is provided with a guide wheel, one end face, close to the guide wheel, of the accommodating cavity is provided with a guide rail, and the guide wheel can rotate on the guide rail. When the wiring contact is close to the wiring seat, the wiring device is connected with the cabinet body, and when the wiring contact is far away from the wiring seat, the wiring device can be pulled out of the cabinet body and detached, so that the wiring device can be conveniently replaced on the cabinet body. The switch cabinet provided by the embodiment of the invention can prevent the secondary equipment from being damaged by arcing faults in the cabinet body, and the original wiring device can be directly disassembled and replaced by a fault-free wiring device when the secondary equipment fails, so that the faults and the wiring do not need to be checked, the maintenance time is short, the normal operation of a power system can be quickly recovered, and the power failure time of a user side is shortened.

Drawings

The invention is explained in more detail below with reference to the figures and examples.

Fig. 1 is a schematic axial view of a switchgear provided in an embodiment of the present invention.

Fig. 2 is a schematic partial sectional view of a switch cabinet according to an embodiment of the present invention.

In the figure:

1. a cabinet body; 11. an accommodating chamber; 111. a wire holder; 112. a guide rail; 12. a cabinet door; 2. a wiring device; 21. a first block; 211. a wiring contact; 212. a guide wheel; 213. a handle; 214. a limiting block; 22. a second block; 221. a panel; 2211. a through hole; 2212. heat dissipation holes; 222. a handle; 23. a flame retardant layer; 3. secondary equipment; 41. a temperature sensor; 42. a wireless communication module; 43. a dry powder sprayer; 44. a switch module; 45. an inflatable air bag unit; 5. and a controller.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. 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.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 and 2, an embodiment of the invention provides a switch cabinet, which includes a cabinet body 1, a receiving cavity 11 is provided on the cabinet body 1, a wiring device 2 can be received in the receiving cavity 11, the wiring device 2 is provided with a first block 21 and a second block 22, the first block 21 and the second block 22 are vertically arranged, the first block 21 and the second block 22 are communicated with each other and are provided with a secondary device 3, one side of the second block 22, which is away from the cavity bottom surface of the receiving cavity 11, is provided with a panel 221, the panel 221 is provided with a plurality of through holes 2211, the through holes 2211 are used for arranging secondary elements of the secondary device 3, one end of the first block 21, which is close to the cavity bottom surface of the receiving cavity 11, is provided with a wiring contact 211, the cavity bottom surface of the receiving cavity 11 is provided with a wiring seat 111 corresponding to the wiring contact 211, the wiring contact 211 can be inserted into the wiring seat 111, the bottom of the first block 21 is provided with a guide pulley 212, idler 212 is able to rotate on guide rail 112.

According to the embodiment of the invention, the cabinet body 1 is provided with the accommodating cavity 11, the wiring device 2 can be accommodated in the accommodating cavity 11, the wiring device 2 is provided with the first block body 21 and the second block body 22, the first block body 21 and the second block body 22 are vertically arranged, and the first block body 21 and the second block body 22 are communicated and provided with the secondary equipment 3. The primary equipment is placed at the top of the first block body 21, and the secondary equipment 3 is arranged inside the first block body 21 and the second block body 22, so that the secondary equipment 3 is sealed in the wiring device 2, the primary equipment can be separated from the secondary equipment 3, and further the secondary elements are effectively prevented from being damaged by arcing gas. The side of the second block 22 away from the bottom surface of the accommodating cavity 11 is provided with a panel 221, the panel 221 is provided with a plurality of through holes 2211, the through holes 2211 are used for arranging secondary elements of the secondary device 3, a user can directly operate the secondary elements of the secondary device 3 on the panel 221, and when the secondary elements are a display screen or an indicator light, information of the secondary device 3 can be displayed through the secondary elements on the panel 221. In addition, one end of the first block body 21 close to the bottom surface of the accommodating cavity 11 is provided with a wiring contact 211, the bottom surface of the accommodating cavity 11 is provided with a wiring seat 111 corresponding to the wiring contact 211, the wiring contact 211 can be inserted into the wiring seat 111, the bottom of the first block body 21 is provided with a guide wheel 212, one end surface of the accommodating cavity 11 close to the guide wheel 212 is provided with a guide rail 112, and the guide wheel 212 can rotate on the guide rail 112. When the wiring contact 211 is close to the wiring base 111, the wiring device 2 is connected to the cabinet 1, and when the wiring contact 211 is far from the wiring base 111, the wiring device 2 can be pulled out of the cabinet 1 and detached, so that the wiring device 2 can be replaced on the cabinet 1. The switch cabinet provided by the embodiment of the invention can prevent the damage of the arc fault in the cabinet body 1 to the secondary equipment 3, the original wiring device 2 can be directly disassembled when the secondary equipment 3 has a fault, and the wiring device 2 without the fault is replaced, so that the fault and wiring do not need to be checked, the maintenance time is short, the normal operation of a power system can be quickly recovered, and the power failure time of a user side is shortened.

In one embodiment, referring to fig. 2, a temperature sensor 41, a wireless communication module 42 and a controller 5 are disposed on the cavity wall of the accommodating cavity 11, the temperature sensor 41 and the wireless communication module 42 are respectively connected with the controller 5, and the wireless communication module 42 is in communication connection with the server. Temperature value on the termination 2 is detected through temperature sensor 41 to this embodiment, and the temperature value that temperature sensor 41 detected can be forwarded to controller 5, is transmitted the temperature value to the server by wireless communication module 42 again for the operation and maintenance personnel can learn the temperature condition in the cabinet body 1 at any time at the control cabinet, when discovering the temperature value anomaly, can in time dispatch near operation and maintenance personnel to the field processing. In particular, the controller 5 may preset a temperature threshold, and when the temperature value collected by the temperature sensor 41 is higher than the preset temperature threshold, the controller 5 outputs high-temperature abnormal warning information and transmits the warning information to the server through the wireless communication module 42, so as to inform the operation and maintenance personnel that the cabinet 1 is in an emergency, and the operation and maintenance personnel do not need to check the temperature at regular time.

Further, with continued reference to fig. 2, a dry powder injector 43 is disposed within the accommodating chamber 11, and the dry powder injector 43 is connected to the controller 5. The inside dry powder extinguishing agent such as ammonium phosphate that holds of dry powder sprayer 43 of this embodiment, and be provided with the electronic nozzle, when the temperature value that temperature sensor 41 detected is higher than predetermineeing the temperature threshold value, judge the arcing fault incident, controller 5 starts the electronic nozzle of dry powder sprayer 43 this moment, sprays the dry powder extinguishing agent in the cabinet body 1 to reach the effect of extinguishing the internal arcing of cabinet body 1 fast.

Further, referring to fig. 1 and 2, a cabinet door 12 is disposed at an opening of the accommodating cavity 11, the cabinet door 12 can seal the opening of the accommodating cavity 11, a switch module 44 is disposed between the cabinet door 12 and the opening of the accommodating cavity 11, the switch module 44 is used for locking or releasing the cabinet door 12, and the switch module 44 is connected to the controller 5. When the temperature value that this embodiment detected at temperature sensor 41 is higher than preset temperature threshold, it is gaseous to judge that there is high temperature high pressure in the cabinet body 1, can come control switch module 44 through controller 5 to loosen cabinet door 12, release high temperature high pressure gas.

More preferably, referring to fig. 2, an end of the first block 21 near the cavity bottom surface of the accommodation cavity 11 is provided with an inflatable air bag unit 45, and the inflatable air bag unit 45 is connected with the controller 5. The main body of the inflatable air bag unit 45 is an air bag with good elastic performance, such as an air bag made of rubber, an inflation inlet of an inflator pump is arranged inside the air bag, the inflator pump is connected with the air bag in a sealing mode, air outside the air bag can be pumped into the air bag, and the air bag is made to expand and increase in size. In the embodiment, when the temperature value detected by the temperature sensor 41 is higher than the preset temperature threshold, the controller 5 controls the inflator of the inflatable air bag unit 45 to inflate, so that the air bag is inflated to lift the first block 21 away from the cabinet 1, thereby protecting the secondary device 3 in the wiring device 2.

In particular, referring to fig. 1, the panel 221 is provided with heat dissipation holes 2212, so that high-temperature and high-pressure gas generated in the secondary equipment 3 can be discharged from the wiring device 2, and meanwhile, high-temperature and high-pressure gas generated in the primary equipment in the cabinet 1 can be prevented from directly entering the secondary equipment 3 in the wiring device 2.

Preferably, referring to fig. 2, a flame retardant layer 23 is disposed on the wiring device 2, and the flame retardant layer 23 of the present embodiment may be a non-volatile membrane formed by any one of a magnesium hydroxide composite flame retardant, an aluminum hydroxide flame retardant, a silicone rubber flame retardant, and the like, and achieves the purpose of flame retardancy by isolating the wiring device 2 from air.

In another embodiment, referring to fig. 1, a handle 222 is disposed on an end of the second block 22 away from the guide wheel 212, and the handle 222 can provide a force point for a robot or a maintenance worker to move the wiring device 2 upward, so as to facilitate transportation of the wiring device 2.

In addition, with reference to fig. 1, a handle 213 is disposed at an end of the first block 21 away from the wiring contact 211, and the operation and maintenance personnel can easily say that the wiring device 2 is pushed into the accommodating cavity 11 of the cabinet 1 or pulled out of the accommodating cavity 11 through the handle 213, so as to improve the loading and unloading efficiency of the wiring device 2.

Optionally, referring to fig. 1, a limit block 214 is disposed at an end of the first block 21 away from the wiring contact 211, and the limit block 214 can limit the first block 21 from approaching to the bottom surface of the accommodating cavity 11, so as to avoid the wiring contact 211 from penetrating into the wiring seat 111 too deeply and being damaged.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in a descriptive sense or a positional relationship based on the orientation shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims

1. A switch cabinet is characterized by comprising a cabinet body, wherein a containing cavity is arranged on the cabinet body, a wiring device can be contained in the containing cavity, the wiring device is provided with a first block body and a second block body, the first block body and the second block body are vertically arranged, the first block body and the second block body are communicated with each other and are provided with secondary equipment, one side, away from the cavity bottom surface of the containing cavity, of the second block body is provided with a panel, the panel is provided with a plurality of through holes, the through holes are used for arranging secondary elements of the secondary equipment, one end, close to the cavity bottom surface of the containing cavity, of the first block body is provided with a wiring contact, the cavity bottom surface of the containing cavity is provided with a wiring seat corresponding to the wiring contact, the wiring contact can be inserted into the wiring seat, the bottom of the first block body is provided with a guide wheel, and one end surface, close to the guide wheel, of the containing, the guide wheel can rotate on the guide rail.

2. The switch cabinet according to claim 1, wherein a temperature sensor, a wireless communication module and a controller are arranged on the wall of the accommodating cavity, the temperature sensor and the wireless communication module are respectively connected with the controller, and the wireless communication module is in communication connection with the server.

3. The switchgear cabinet according to claim 2, wherein a dry powder injector is provided in the containment chamber, the dry powder injector being connected to the controller.

4. The switch cabinet according to claim 2, wherein a cabinet door is arranged at the opening of the accommodating cavity, the cabinet door can seal the opening of the accommodating cavity, a switch module is arranged between the cabinet door and the opening of the accommodating cavity, the switch module is used for locking or releasing the cabinet door, and the switch module is connected with the controller.

5. The switch cabinet according to claim 4, characterized in that one end of the first block body close to the cavity bottom surface of the accommodating cavity is provided with an inflatable air bag unit, and the inflatable air bag unit is connected with the controller.

6. The switchgear cabinet according to claim 1, wherein the panel is provided with heat dissipation holes.

7. The switchgear as claimed in claim 1, wherein the wiring device is provided with a flame retardant layer.

8. Switch cabinet according to claim 1, characterized in that a handle is arranged at the end of the second block facing away from the guide wheel.

9. The switchgear cabinet according to claim 1, wherein a handle is provided on an end of the first block facing away from the wiring contacts.

10. The switch cabinet according to claim 1, wherein a limiting block is disposed at an end of the first block body facing away from the wiring contact, and the limiting block can limit the first block body from approaching the bottom surface of the accommodating cavity.