CN213989600U

CN213989600U - Pressure relief cover structure of high-voltage switch cabinet

Info

Publication number: CN213989600U
Application number: CN202022976543.0U
Authority: CN
Inventors: 汤勇
Original assignee: Shaanxi Xinkai High Voltage Electric Supporting Co ltd
Current assignee: Shaanxi Xinkai High Voltage Electric Supporting Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-08-17
Anticipated expiration: 2030-12-11

Abstract

The utility model discloses a pressure relief cover structure of a high-voltage switch cabinet, in particular to the field of high-voltage switch cabinets, which comprises a switch cabinet main body, wherein the top of the switch cabinet main body is provided with a pressure relief cavity, and a pressure relief mechanism is arranged in the pressure relief cavity; the pressure relief mechanism comprises a pressure relief cover, the bottom of the pressure relief cover is attached to the pressure relief cavity, a connecting seat is fixedly arranged at the bottom of the pressure relief cover, an inwards-concave connecting cavity is formed in the outer side of the connecting seat, a sliding rod is fixedly arranged at the bottom of the connecting seat, a sliding barrel is arranged at the bottom of the sliding rod, and a sliding chute for accommodating the sliding rod is formed in the sliding barrel. The utility model discloses a be equipped with pressure release mechanism, temperature sensor can in time detect high-temperature gas to the drive carousel rotates, makes extrusion piece and extrusion bag separation, and the slide bar of pressure release lid bottom can upwards bounce under the promotion of spring this moment, and the internal high-pressure high-temperature gas of cabinet can directly dash to the external world, accomplishes the high-pressure gas release.

Description

Pressure relief cover structure of high-voltage switch cabinet

Technical Field

The utility model relates to a high tension switchgear field, more specifically say, the utility model relates to a high tension switchgear pressure release lid structure.

Background

The high-voltage switch cabinet is mainly used for power station, power transmission of small and medium-sized generators, power receiving and power transmission of secondary substation of power system, power distribution of industrial and mining enterprises and institutions, starting of large-sized high-voltage motors and the like, and is an important power distribution device widely used in power system.

In a high-voltage switch cabinet in the prior art, the pressure relief cover body is fixedly connected with the cabinet top plate through screws, so that the pressure relief plate cannot be smoothly opened in the actual use process, high-pressure gas cannot be released, the deformation of the cabinet body and the cabinet top plate is caused, and the potential safety hazard is brought to the safe operation of the switch cabinet.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a high tension switchgear pressure release lid structure, the utility model aims to solve the technical problem that: how to realize the automatic pressure relief of the pressure relief cover.

In order to achieve the above object, the utility model provides a following technical scheme: a pressure relief cover structure of a high-voltage switch cabinet comprises a switch cabinet main body, wherein a pressure relief cavity is arranged at the top of the switch cabinet main body, and a pressure relief mechanism is arranged in the pressure relief cavity;

the pressure relief mechanism comprises a pressure relief cover, the bottom of the pressure relief cover is attached to a pressure relief cavity, a connecting seat is fixedly arranged at the bottom of the pressure relief cover, an inward-concave connecting cavity is arranged outside the connecting seat, a sliding rod is fixedly arranged at the bottom of the connecting seat, a sliding barrel is arranged at the bottom of the sliding rod, a sliding groove for accommodating the sliding of the sliding rod is arranged inside the sliding barrel, a spring is fixedly arranged between the sliding groove and the sliding rod, a convex block is fixedly arranged outside the sliding barrel, and a temperature sensor is arranged on the convex block;

the switch cabinet is characterized in that an air bag attached to the connecting cavity is arranged on the switch cabinet main body, an extrusion bag communicated with the air bag is further arranged inside the switch cabinet main body, an extrusion block is arranged at one end of the extrusion bag, a rotary table connected with the extrusion block is arranged inside the switch cabinet main body in a rotating mode, a speed reduction motor output shaft is meshed outside the rotary table, and the temperature sensor output end is electrically connected with the speed reduction motor input end.

In a preferred embodiment, the outer side edge of the pressure relief cover is provided with a shielding layer extending outwards, the shielding layer and the connecting seat are located in the same circle center, and the diameter of the shielding layer is larger than that of the connecting seat.

In a preferred embodiment, the top of the switch cabinet main body is provided with a guide groove which is recessed downwards, and the guide groove and the pressure relief cavity are located in the same circle center.

In a preferred embodiment, a sealing ring is bonded at the joint of the pressure relief cover and the pressure relief cavity, and the sealing ring is made of a rubber material.

In a preferred embodiment, the diameter of the rotating disc is larger than that of the pressure relief cavity, the rotating disc and the pressure relief cavity are located in the same circle center, and the cross section of the lug is in an arc shape.

In a preferred embodiment, the connection socket is made of a heat resistant rubber material, and the spring is provided as a compression spring.

In a preferred embodiment, the protruding block and the sliding cylinder are integrally arranged, the temperature sensor is located below the protruding block, and the sliding rod is fixedly connected with the inner wall of the pressure relief cavity.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a be equipped with pressure release mechanism, temperature sensor on the lug can in time detect high-temperature gas, and drive the carousel and rotate, make extrusion piece and extrusion bag separate, the slide bar of pressure release lid bottom can be upspring under the promotion of spring this moment, high-pressure high-temperature gas in the cabinet body can directly rush to the external world, accomplish the release of high-pressure gas, adopt temperature sensor as trigger switch, the reaction is sensitive, before guaranteeing gas and pressure release lid contact, the pressure release lid can be opened, gas can not cause the impact to the pressure release lid, and then can not cause the deformation of the cabinet body and cabinet body cabinet top plate, the security is higher;

2. the utility model discloses a be equipped with the shielding layer, the shielding layer can shelter from the pressure release chamber completely, plays dustproof and waterproof effect, outwards discharges under the guide of guiding gutter, avoids the rainwater gathering, and the gas tightness when can improving the connection of pressure release lid through the sealing washer avoids external steam or dust infiltration, influences the normal operation of equipment, and the connecting seat plays buffering cushioning effect when receiving gaseous impact.

Drawings

Fig. 1 is a perspective view of the overall structure of the present invention.

Fig. 2 is a perspective view of the pressure relief cover structure of the present invention.

Fig. 3 is a front view of the structure of the pressure relief cover of the present invention.

Fig. 4 is a top view of the structure of the rotary disk and the air bag of the present invention.

The reference signs are: 1. a switch cabinet main body; 2. a pressure relief cavity; 3. a pressure relief cover; 4. a connecting seat; 5. a connecting cavity; 6. a slide bar; 7. a slide cylinder; 8. a chute; 9. a spring; 10. a bump; 11. a temperature sensor; 12. an air bag; 13. extruding the bag; 14. extruding the block; 15. a turntable; 16. a reduction motor; 17. a shielding layer; 18. a diversion trench; 19. and (5) sealing rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a pressure relief cover 3 structure of a high-voltage switch cabinet, which comprises a switch cabinet main body 1, wherein the top of the switch cabinet main body 1 is provided with a pressure relief cavity 2, and a pressure relief mechanism is arranged inside the pressure relief cavity 2;

the pressure relief mechanism comprises a pressure relief cover 3, the bottom of the pressure relief cover 3 is attached to a pressure relief cavity 2, a connecting seat 4 is fixedly arranged at the bottom of the pressure relief cover 3, an inward concave connecting cavity 5 is arranged on the outer side of the connecting seat 4, a sliding rod 6 is fixedly arranged at the bottom of the connecting seat 4, a sliding barrel 7 is arranged at the bottom of the sliding rod 6, a sliding chute 8 for accommodating the sliding rod 6 is arranged inside the sliding barrel 7, a spring 9 is fixedly arranged between the sliding chute 8 and the sliding rod 6, the sliding rod 6 at the bottom of the pressure relief cover 3 can be upwards bounced under the pushing of the spring 9 so as to be separated from the pressure relief cavity 2, high-pressure high-temperature gas in the cabinet body can directly impact the outside, a convex block 10 is fixedly arranged on the outer side of the sliding barrel 7, a temperature sensor 11 is arranged on the convex block 10, and the temperature sensor 11 is used as a trigger switch, so that the reaction is sensitive;

be equipped with on the cubical switchboard main part 1 and connect the gasbag 12 of 5 laminatings of chamber, the inside extrusion bag 13 that communicates with gasbag 12 that still is equipped with of cubical switchboard main part 1, extrusion bag 13 one end is equipped with extrusion piece 14, the inside carousel 15 that is equipped with and is connected with extrusion piece 14 that rotates of cubical switchboard main part 1, 15 outside meshes of carousel has gear motor 16 output shafts, 11 output of temperature sensor and gear motor 16 input electric connection are convenient for in time start gear motor 16.

The diameter of the rotary table 15 is larger than the diameter of the pressure relief cavity 2, the rotary table 15 and the pressure relief cavity 2 are located in the same circle center, the section of the convex block 10 is arc-shaped, the spring 9 is set to be a compression spring, the convex block 10 and the sliding barrel 7 are integrally arranged, the temperature sensor 11 is located below the convex block 10, and the sliding rod 6 is fixedly connected with the inner wall of the pressure relief cavity 2.

As shown in fig. 1 to 4, the embodiment specifically is: when an accident occurs to the switch cabinet, high-temperature and high-pressure gas moves upwards along the pressure relief cavity 2, the high-temperature and high-pressure gas contacts the bump 10 when moving, the bump 10 is arc-shaped, so that the contact time and area with the gas are increased, the temperature sensor 11 positioned on the bump 10 can detect the high-temperature gas in time, the gas temperature is higher than the preset threshold value of the temperature sensor 11 at the moment, the temperature sensor 11 can drive the speed reduction motor 16 to rotate, the output shaft of the speed reduction motor 16 can control the rotation of the turntable 15, when the turntable 15 rotates, the extrusion block 14 inside the turntable 15 can be separated from the extrusion bag 13, the air bag 12 can deform and contract under the self elastic action to be separated from the connecting cavity 5, at the moment, the sliding rod 6 at the bottom of the pressure relief cover 3 can bounce upwards under the pushing of the spring 9 to be separated from the pressure relief cavity 2, the high-pressure and high-temperature, adopt temperature sensor 11 as trigger switch, the reaction is sensitive, before guaranteeing gas and pressure release lid 3 contact, pressure release lid 3 can be opened, and gas can not cause the impact to pressure release lid 3.

The model of the temperature sensor 11 is pt100 temperature sensor, and the internal integration has temperature controller, theory of operation: the metal expansion principle is designed to produce a corresponding extension of the metal of the sensor after the ambient temperature changes, so that the sensor can perform signal conversion on the reaction in different ways.

The 3 outside edges of pressure release lid are equipped with outside extension shielding layer 17, and shielding layer 17 can shelter from pressure release chamber 2 completely, plays dustproof and waterproof effect, shielding layer 17 is located same centre of a circle with connecting seat 4, just shielding layer 17 diameter is greater than connecting seat 4 diameter, 1 top of cubical switchboard main part be equipped with undercut guiding gutter 18, guiding gutter 18 is located same centre of a circle with pressure release chamber 2, pressure release lid 3 bonds with pressure release chamber 2 laminating department has sealing washer 19, sealing washer 19 is made by rubber materials, connecting seat 4 is made by heat-resisting rubber materials, and self has certain elasticity, plays buffering cushioning effect.

As shown in fig. 1-2, the embodiment specifically is: during the use, can shelter from pressure release chamber 2 completely through shielding layer 17, play dustproof and waterproof effect, and in rainwater can directly flow into guiding gutter 18 under shielding layer 17's guide, outwards discharge under guiding gutter 18's guide, avoid the rainwater gathering, gas tightness when can improving the connection of pressure release lid 3 through sealing washer 19, avoid external steam or dust infiltration, influence the normal operating of equipment, connecting seat 4 adopts heat-resisting rubber materials to make, self has certain elasticity, when receiving gaseous impact, play buffering cushioning effect.

The utility model discloses the theory of operation:

referring to the attached drawings 1-4 of the specification, high-temperature and high-pressure gas moves upwards along the pressure relief cavity 2 and contacts with the bump 10 when moving, the temperature sensor 11 positioned on the bump 10 can detect the high-temperature gas in time, at the moment, the gas temperature is higher than a preset threshold value of the temperature sensor 11, the temperature sensor 11 drives the speed reduction motor 16 to rotate, an output shaft of the speed reduction motor 16 controls the rotation of the turntable 15, when the turntable 15 rotates, the extrusion block 14 inside the turntable 15 is separated from the extrusion bag 13, the air bag 12 deforms and contracts under the self elastic action so as to be separated from the connecting cavity 5, and at the moment, the sliding rod 6 at the bottom of the pressure relief cover 3 is pushed by the spring 9 to bounce upwards so as to be separated from the pressure relief cavity 2;

referring to the attached drawings 1-2 of the specification, the shielding layer 17 can completely shield the pressure relief cavity 2, rainwater can directly flow into the diversion trench 18 under the guidance of the shielding layer 17 and is discharged outwards under the guidance of the diversion trench 18, the sealing ring 19 can improve the air tightness of the pressure relief cover 3 during connection to prevent external water vapor or dust from permeating, and the connecting seat 4 is made of heat-resistant rubber materials and has certain elasticity.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high tension switchgear pressure release lid structure, includes cubical switchboard main part (1), its characterized in that: the top of the switch cabinet main body (1) is provided with a pressure relief cavity (2), and a pressure relief mechanism is arranged inside the pressure relief cavity (2);

the pressure relief mechanism comprises a pressure relief cover (3), the bottom of the pressure relief cover (3) is attached to a pressure relief cavity (2), a connecting seat (4) is fixedly arranged at the bottom of the pressure relief cover (3), an inward-concave connecting cavity (5) is arranged on the outer side of the connecting seat (4), a sliding rod (6) is fixedly arranged at the bottom of the connecting seat (4), a sliding cylinder (7) is arranged at the bottom of the sliding rod (6), a sliding groove (8) for accommodating the sliding rod (6) to slide is arranged in the sliding cylinder (7), a spring (9) is fixedly arranged between the sliding groove (8) and the sliding rod (6), a convex block (10) is fixedly arranged on the outer side of the sliding cylinder (7), and a temperature sensor (11) is arranged on the convex block (10);

be equipped with on cubical switchboard main part (1) and be connected gasbag (12) of chamber (5) laminating, cubical switchboard main part (1) inside still is equipped with extrusion bag (13) with gasbag (12) intercommunication, extrusion bag (13) one end is equipped with extrusion piece (14), inside rotation of cubical switchboard main part (1) is equipped with carousel (15) of being connected with extrusion piece (14), carousel (15) outside meshing has gear motor (16) output shaft, temperature sensor (11) output and gear motor (16) input electric connection.

2. The pressure relief cover structure of the high-voltage switch cabinet according to claim 1, characterized in that: the outer edge of the pressure relief cover (3) is provided with a shielding layer (17) extending outwards, the shielding layer (17) and the connecting seat (4) are located in the same circle center, and the diameter of the shielding layer (17) is larger than that of the connecting seat (4).

3. The pressure relief cover structure of the high-voltage switch cabinet according to claim 1, characterized in that: the switch cabinet is characterized in that a guide groove (18) which is sunken downwards is formed in the top of the switch cabinet main body (1), and the guide groove (18) and the pressure relief cavity (2) are located in the same circle center.

4. The pressure relief cover structure of the high-voltage switch cabinet according to claim 1, characterized in that: the joint of the pressure relief cover (3) and the pressure relief cavity (2) is bonded with a sealing ring (19), and the sealing ring (19) is made of rubber materials.

5. The pressure relief cover structure of the high-voltage switch cabinet according to claim 1, characterized in that: the diameter of the rotary disc (15) is larger than that of the pressure relief cavity (2), the rotary disc (15) and the pressure relief cavity (2) are located in the same circle center, and the cross section of the lug (10) is arc-shaped.

6. The pressure relief cover structure of the high-voltage switch cabinet according to claim 1, characterized in that: the connecting seat (4) is made of heat-resistant rubber materials, and the spring (9) is set to be a compression spring.

7. The pressure relief cover structure of the high-voltage switch cabinet according to claim 1, characterized in that: the temperature sensor is characterized in that the bump (10) and the sliding barrel (7) are integrally arranged, the temperature sensor (11) is located below the bump (10), and the sliding rod (6) is fixedly connected with the inner wall of the pressure relief cavity (2).