CN216251814U

CN216251814U - Novel safe and reliable high-low voltage switch cabinet

Info

Publication number: CN216251814U
Application number: CN202121845747.9U
Authority: CN
Inventors: 罗锦波
Original assignee: Guangdong Xinfenglong Electronic Technology Co ltd
Current assignee: Guangdong Xinfenglong Electronic Technology Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-04-08
Anticipated expiration: 2031-08-09

Abstract

The utility model discloses a novel safe and reliable high-low voltage switch cabinet, which relates to the field of electric power and comprises a switch cabinet body, an installation assembly, a cooling and dehumidifying structure and a fireproof assembly; the switch cabinet body is provided with an installation component, a cooling and dehumidifying structure and a fireproof component; the ion fan and the dry-wet thermometer are respectively and electrically connected with the controller; when the temperature and humidity in the cabinet body exceed preset values, the ion fan is automatically started by the controller to cool the interior of the cabinet body, and heat generated by components and moisture in the cabinet body are timely discharged through the vent at the bottom end of the cabinet door, so that fire caused by overheating of the components is prevented; the bottom surface of the clapboard is fixedly connected with a suspension type heptafluoropropane fire extinguisher; when a fire disaster occurs in the switch cabinet, when the ambient temperature around the temperature sensing glass bulb of the suspension type heptafluoropropane fire extinguisher reaches a certain value, the temperature sensing glass bulb is broken, and high-pressure nitrogen in the suspension type heptafluoropropane fire extinguisher immediately pushes the heptafluoropropane fire extinguishing agent to be sprayed and put out a fire, so that the economic loss is reduced.

Description

Novel safe and reliable high-low voltage switch cabinet

Technical Field

The utility model relates to a switch cabinet, in particular to a novel safe and reliable high-low voltage switch cabinet.

Background

The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system. The components in the switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like. The classification methods of the switch cabinets are various, for example, the switch cabinets can be divided into movable switch cabinets and fixed switch cabinets by the installation mode of the circuit breaker; or according to different cabinet body structures, the cabinet body can be divided into an open type switch cabinet, a metal closed switch cabinet and a metal closed armored switch cabinet; the high-voltage switch cabinet, the medium-voltage switch cabinet, the low-voltage switch cabinet and the like can be divided according to different voltage grades. The method is mainly suitable for various occasions such as power plants, transformer substations, petrochemical industry, metallurgical steel rolling, light industrial textile, industrial and mining enterprises, residential districts, high-rise buildings and the like; the equipment operates in a humid environment, and the insulation capacity of the switch cabinet is reduced due to too much moisture; in the aspect of safety, the functions such as fire prevention, fire extinguishment and the like are low, the cabinet body is relatively closed, the heat dissipation effect is not good, the running temperature is high, the temperature inside the cabinet body can reach more than 45 ℃ in actual measurement in running, and the service environment of a plurality of devices in the switch cabinet generally requires 0-40 ℃. In such a high temperature environment, equipment failure and accelerated equipment aging are easily caused, and unsafe factors are caused.

Disclosure of Invention

The utility model aims to automatically control the temperature and the humidity in the switch cabinet and improve the fire prevention and extinguishing capability of the switch cabinet.

In order to achieve the purpose, the utility model provides the following technical scheme:

a novel safe and reliable high-low voltage switch cabinet comprises a switch cabinet body, an installation component, a cooling and dehumidifying structure and a fireproof component; be equipped with installation component, cooling dehumidification structure and fire prevention subassembly on the cubical switchboard body.

Preferably: a cabinet door is hinged to the front side of the switch cabinet body; four corners of the bottom surface of the switch cabinet body are respectively provided with a universal wheel capable of braking.

Preferably: the mounting assembly comprises a fixing plate and a component placing frame; the group of fixed plates are symmetrically and fixedly connected to two inner side walls of the switch cabinet body, and a plurality of through holes are uniformly formed in the surfaces of the fixed plates; the plurality of component placing frames are arranged between the group of fixed plates in parallel, and two ends of the component placing frames are fixedly connected in the through holes of the group of fixed plates through bolts respectively; a plurality of component mounting holes are uniformly formed in the component placing frame; the components are fixedly connected in the component mounting holes of the component placing frame through bolts.

Preferably: the cooling and dehumidifying structure comprises a ventilation opening, an ion fan and a drying agent; a group of ventilation openings are symmetrically formed in the top end and the bottom end of the cabinet door; a filter screen is arranged on the surface of the ventilation opening; a partition plate is arranged at the top end inside the switch cabinet body; a group of through holes are symmetrically formed in the partition board, and a group of blowing pipes are fixedly connected in the group of through holes; the group of ion fans are fixedly connected to the top surfaces of the partition plates corresponding to the through holes; the inner side surface of the cabinet door is fixedly connected with a U-shaped mounting groove, and the drying agent is clamped in the mounting groove; the left end and the right end below the ventilation opening at the top end of the cabinet door are respectively provided with a controller and a dry-wet thermometer; the ion fan and the dry-wet thermometer are respectively and electrically connected with the controller.

Preferably: the fire-proof component comprises a suspension type heptafluoropropane fire extinguisher and a high-molecular composite fire-resistant layer; the inner wall of the switch cabinet body below the partition board is covered with a high-molecular composite fire-resistant layer; the bottom surface of the clapboard is fixedly connected with a suspension type heptafluoropropane fire extinguisher.

Due to the adoption of the technical scheme, the utility model has the following advantages:

the ion fan and the dry-wet thermometer are respectively and electrically connected with the controller; when the dry and wet thermometer displays that the temperature or the humidity in the switch cabinet body exceeds a preset value, the ion fan is automatically started through the controller; the ion fan sucks external air from the ventilation opening at the top end of the cabinet door, blows the air to the components through the blowing pipe, cools the interior of the switch cabinet body, and timely discharges heat generated by the components and moisture in the cabinet body through the ventilation opening at the bottom end of the cabinet door, so that the service life of the components is prolonged, and the components are prevented from being overheated to cause fire; the bottom surface of the clapboard is fixedly connected with a suspension type heptafluoropropane fire extinguisher; when the internal components and parts of cubical switchboard are in fire because of reasons such as short circuit, when the ambient temperature around the temperature sensing glass bubble of suspension type heptafluoropropane fire extinguisher reaches a definite value, the temperature sensing glass bubble breaks, and the inside high-pressure nitrogen gas of suspension type heptafluoropropane fire extinguisher pushes the heptafluoropropane fire extinguishing agent immediately and spouts and put out a fire, reduces economic loss.

Drawings

Fig. 1 is a schematic diagram of the internal structure of a novel safe and reliable high-low voltage switch cabinet.

Fig. 2 is an appearance structure schematic diagram of the novel safe and reliable high-low voltage switch cabinet.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-2, in an embodiment of the present invention, a cabinet type double-body heptafluoropropane fire extinguishing apparatus includes a switch cabinet body 1, a mounting assembly 2, a cooling and dehumidifying structure 3, and a fire-proof assembly 4; be equipped with installation component 2, cooling dehumidification structure 3 and fire prevention subassembly 4 on the cubical switchboard body 1.

A cabinet door 11 is hinged to the front side of the switch cabinet body 1; four corners of the bottom surface of the switch cabinet body 1 are respectively provided with a universal wheel 12 capable of braking; the universal wheel 12 capable of braking is arranged, so that the switch cabinet body 1 can be conveniently moved, meanwhile, the switch cabinet body 1 is overhead, and the permeation of ground moisture is reduced.

The mounting assembly 2 comprises a fixing plate 21 and a component placing frame 22; the group of fixing plates 21 are symmetrically and fixedly connected to two inner side walls of the switch cabinet body 1, and a plurality of through holes are uniformly formed in the surface of each fixing plate 21; a plurality of component placement racks 22 are arranged between the group of fixing plates 31 in parallel, and two ends of the component placement racks 22 are fixedly connected in through holes of the group of fixing plates 21 through bolts respectively; a plurality of component mounting holes 23 are uniformly formed in the component placing frame 22; the components are fixedly connected in the component mounting holes 23 of the component placement frame 22 through bolts.

The temperature reduction and dehumidification structure 3 comprises a ventilation opening 31, an ion fan 35 and a desiccant 37; a group of ventilation openings 31 are symmetrically formed in the top end and the bottom end of the cabinet door 11 and used for ventilation and heat dissipation; the surface of the ventilation opening 31 is provided with a filter screen 32 for preventing dust from entering the switch cabinet body 1; a partition plate 33 is arranged at the top end inside the switch cabinet body 11; a group of through holes are symmetrically formed in the partition plate 33, and a group of blowing pipes 34 are fixedly connected in the group of through holes; the group of ion fans 35 are fixedly connected to the top surfaces of the partition plates 33 corresponding to the through holes, when the ion fans 35 work 1, charges in the switch cabinet body 1 can be neutralized, and static electricity can be effectively removed to protect the switch cabinet; the inner side surface of the cabinet door 11 is fixedly connected with a U-shaped mounting groove 36, a drying agent 37 is clamped in the mounting groove 36, the drying agent 37 absorbs moisture in the switch cabinet body 1 to keep the components dry, and the drying agent 37 is replaced at any time after failure, so that the operation is simple and convenient; the controller 38 and the psychrometer 39 are respectively arranged at the left end and the right end below the ventilation opening 31 at the top end of the cabinet door 11; the ion fan 35 and the dry-wet thermometer 39 are respectively electrically connected with the controller 38; when the dry and wet thermometer 39 displays that the temperature or humidity in the switch cabinet body 1 exceeds a preset value, the ion fan 35 is automatically started through the controller 38; the ion fan 35 sucks external air from the ventilation opening 31 at the top end of the cabinet door 11, blows the air to the components through the blowing pipe 34, cools the interior of the switch cabinet body 1, and timely discharges heat generated by the components and moisture in the cabinet body through the ventilation opening 31 at the bottom end of the cabinet door 11, so that the service life of the components is prolonged, and fire caused by overheating of the components is prevented; the setting of dry and wet thermometer 39 also makes things convenient for the staff to observe the inside temperature and humidity of cubical switchboard body 1 at any time, and whether the analysis is up to standard, prevents that equipment from weing to arousing that the part is ageing.

The fire-proof assembly 4 comprises a suspension type heptafluoropropane fire extinguisher 41 and a high polymer composite fire-resistant layer 42; the inner wall of the switch cabinet body 1 below the partition plate 33 is covered with the high-molecular composite fire-resistant layer 42, so that the safety level of the switch cabinet is improved; the bottom surface of the partition plate 33 is fixedly connected with a suspension type heptafluoropropane fire extinguisher 41; when the internal components of the switch cabinet are in fire due to short circuit and other reasons, and the ambient temperature around the temperature sensing glass bulb of the suspension type heptafluoropropane fire extinguisher 41 reaches a certain value, the temperature sensing glass bulb is broken, high-pressure nitrogen in the suspension type heptafluoropropane fire extinguisher 41 immediately pushes the heptafluoropropane fire extinguishing agent to be sprayed for fire extinguishing, and economic loss is reduced.

Claims

1. A novel safe and reliable high-low voltage switch cabinet comprises a switch cabinet body (1), a mounting assembly (2), a cooling and dehumidifying structure (3) and a fireproof assembly (4); the switch cabinet is characterized in that the switch cabinet body (1) is provided with an installation component (2), a cooling and dehumidifying structure (3) and a fireproof component (4); the fire-proof component (4) comprises a suspension type heptafluoropropane fire extinguisher (41) and a high polymer composite fire-resistant layer (42); the inner wall of the switch cabinet body (1) below the clapboard (33) is covered with a high polymer composite fire-resistant layer (42); the bottom surface of the clapboard (33) is fixedly connected with a suspension type heptafluoropropane fire extinguisher (41).

2. The novel safe and reliable high-low voltage switch cabinet as claimed in claim 1, characterized in that a cabinet door (11) is hinged to the front of the switch cabinet body (1); four corners of the bottom surface of the switch cabinet body (1) are respectively provided with a universal wheel (12) capable of braking.

3. The novel safe and reliable high-low voltage switch cabinet as claimed in claim 1, wherein the mounting assembly (2) comprises a fixing plate (21) and a component placing frame (22); the group of fixing plates (21) are symmetrically and fixedly connected to two inner side walls of the switch cabinet body (1), and a plurality of through holes are uniformly formed in the surface of each fixing plate (21); a plurality of component placing racks (22) are arranged between the group of fixing plates (21) in parallel, and two ends of the component placing racks (22) are fixedly connected in through holes of the group of fixing plates (21) through bolts respectively; a plurality of component mounting holes (23) are uniformly formed in the component placing frame (22); the components are fixedly connected in component mounting holes (23) of the component placing rack (22) through bolts.

4. The novel safe and reliable high-low voltage switch cabinet as claimed in claim 2, characterized in that the cooling and dehumidifying structure (3) comprises a ventilation opening (31), an ion fan (35) and a desiccant (37); a group of ventilation openings (31) are symmetrically formed in the top end and the bottom end of the cabinet door (11); a filter screen (32) is arranged on the surface of the ventilation opening (31); a partition plate (33) is arranged at the top end inside the switch cabinet body (1); a group of through holes are symmetrically formed in the partition plate (33), and a group of blowing pipes (34) are fixedly connected in the group of through holes; a group of ion fans (35) are fixedly connected to the top surfaces of the partition boards (33) corresponding to the through holes; the inner side surface of the cabinet door (11) is fixedly connected with a U-shaped mounting groove (36), and a drying agent (37) is clamped in the mounting groove (36); a controller (38) and a psychrometer (39) are respectively arranged at the left end and the right end below the ventilation opening (31) at the top end of the cabinet door (11); the ion fan (35) and the dry-wet thermometer (39) are respectively and electrically connected with the controller (38).