CN113054572A - High-voltage switch ultra-low temperature protection device - Google Patents
High-voltage switch ultra-low temperature protection device Download PDFInfo
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- CN113054572A CN113054572A CN202110262921.5A CN202110262921A CN113054572A CN 113054572 A CN113054572 A CN 113054572A CN 202110262921 A CN202110262921 A CN 202110262921A CN 113054572 A CN113054572 A CN 113054572A
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- voltage switch
- cabinet body
- rotating shaft
- ventilation
- low temperature
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
A high-voltage switch ultra-low temperature protection device relates to the field of high-voltage switch protection and comprises a cabinet body, a high-voltage switch installation module, a heating element and a partition plate; the cabinet body is provided with a temperature sensor and a controller; the clapboard is arranged in the cabinet body and divides the cabinet body into an upper chamber and a lower chamber; the high-voltage switch mounting module is arranged in the upper cavity; the heating element is arranged in the lower cavity; the air circulation assembly and the ventilation adjusting assembly are also included; the air circulation assembly is arranged in the lower chamber; the ventilation adjusting component is arranged at the top end of the cabinet body. The air circulation assembly is matched with the ventilation adjusting assembly, and when the temperature in the cabinet body is abnormal, the upper ventilation opening is opened/closed to form circulating and circulating air flow, so that the aim of quickly cooling/heating is fulfilled; set up the protection casing subassembly, form confined heat preservation chamber in the outside of the cabinet body, reduce scattering and disappearing of heat energy, it is effectual to keep warm, and then accelerates the speed of intensification.
Description
Technical Field
The invention relates to the field of high-voltage switch protection, in particular to an ultralow-temperature protection device for a high-voltage switch.
Background
The high-voltage switch is used for power generation, power transmission, power distribution or electric energy conversion of an electric power system, is usually arranged in a high-voltage switch cabinet, has the functions of overhead wire inlet and outlet, cable wire inlet and outlet, bus connection and the like, and is mainly suitable for various different places such as power plants, petrochemical industry, metallurgical steel rolling, light industry textile, residential quarters, high-rise buildings and the like. The high-voltage switch adopts SF6 gas as an insulating medium, SF6 has good insulating property, but the high-voltage switch begins to liquefy when the ambient temperature is minus 30 ℃, the insulating property of the high-voltage switch is damaged, and the safety of the high-voltage switch is influenced.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background technology, the invention provides a high-voltage switch ultralow-temperature protection device. The air circulation assembly is matched with the ventilation adjusting assembly, and when the temperature in the cabinet body is abnormal, the upper ventilation opening is opened/closed to form circulating and circulating air flow, so that the aim of quickly cooling/heating is fulfilled; set up the protection casing subassembly, form confined heat preservation chamber in the outside of the cabinet body, reduce scattering and disappearing of heat energy, it is effectual to keep warm, and then accelerates the speed of intensification.
(II) technical scheme
In order to solve the problems, the invention provides a high-voltage switch ultralow-temperature protection device which comprises a cabinet body, a high-voltage switch installation module, a heating element and a partition plate, wherein the cabinet body is provided with a cabinet body; the cabinet body is provided with a temperature sensor and a controller; the clapboard is arranged in the cabinet body and divides the cabinet body into an upper chamber and a lower chamber; the high-voltage switch mounting module is arranged in the upper cavity; the heating element is arranged in the lower cavity; the air circulation assembly and the ventilation adjusting assembly are also included; the air circulation assembly is arranged in the lower chamber; the ventilation adjusting assembly is arranged at the top end of the cabinet body; the air circulation assembly comprises a first driving motor, a horizontal rotating shaft, a vertical rotating shaft, a first gear, a second gear, a first fan blade and a second fan blade; a ventilation cavity communicated with the upper cavity and the lower cavity is arranged on the cabinet body; a lower vent is arranged on the clapboard; the lower end of the vertical rotating shaft is connected with a main shaft of the first driving motor, and the upper end of the vertical rotating shaft faces the lower ventilation opening; the second fan blade is arranged on the vertical rotating shaft; the second gear key is connected with the vertical rotating shaft; the first gear key is connected with the horizontal rotating shaft and is meshed with the second gear; the first fan blades are arranged in multiple groups, and the multiple groups of first fan blades are respectively arranged at two ends of the horizontal rotating shaft; the ventilation adjusting assembly comprises a second driving motor, a lead screw, a translation block and a sliding block; an upper vent is arranged at the top end of the cabinet body; a screw rod driven by a second driving motor is rotatably arranged on the upper ventilation opening, and two ends of the screw rod are provided with symmetrical reverse threads; the translation blocks and the sliding blocks are arranged in two groups and are in one-to-one correspondence; the two groups of sliding blocks move horizontally in the upper ventilation opening in a reverse direction and are respectively in threaded connection with two ends of the screw rod; the translation piece sets up in the slider upper end, and under the ultra-low temperature protection mode, the vent was gone up in the concatenation of two sets of translation pieces and cover.
Preferably, a first vent communicated with the vent cavity is arranged on the wall of the lower cavity; the heating element is arranged on the first ventilation opening; the horizontal rotating shaft faces the first ventilation opening.
Preferably, a first dust screen is arranged on the lower ventilation opening; the upper end of the vertical rotating shaft rotatably penetrates through the first dustproof net and is provided with a dredging frame; a first dredging brush is arranged on the dredging frame; the first dredging brush acts on the first dust screen.
Preferably, the inner wall of the upper chamber is provided with a second ventilation opening communicated with the ventilation cavity.
Preferably, the two groups of translation blocks form a trapezoidal structure with a narrow upper cross section and a wide lower cross section in a splicing state, and the splicing ends are provided with tooth surfaces matched with each other.
Preferably, a second dust screen is arranged on the upper ventilation opening; the lower end of the sliding block is provided with a second dredging brush; the second dredging brush acts on the second dust screen.
Preferably, the device further comprises a protective cover assembly; the protective cover assembly comprises an installation cover, a third driving motor, a winding shaft, a traction rope, a heat preservation cover and a bearing frame; the mounting cover is arranged at the top end of the cabinet body; the heat preservation cover is of a telescopic structure and is arranged around the cabinet body, the upper end of the heat preservation cover is connected with the mounting cover, and the lower end of the heat preservation cover is connected with the bearing frame; the third driving motor is arranged on the mounting cover, and the main shaft is connected with the winding shaft through a key; the upper end of the hauling rope is connected with the winding shaft, and the lower end of the hauling rope is connected with the bearing frame.
Preferably, the shield assembly further comprises a magnet; the magnet is arranged on the bearing frame; the bottom of the cabinet body is provided with an annular metal plate, and magnets are adsorbed under the ultra-low temperature protection mode.
Preferably, the mounting cover is provided with a positioning roller; the pulling rope is wound on the positioning roller.
The invention also provides an ultralow temperature protection method for the high-voltage switch, which comprises the following steps:
s1, when the temperature sensor detects that the environment temperature is higher than a set temperature threshold value, the controller starts a cooling mode, and the ventilation adjusting assembly and the air circulation assembly work;
s2, the second driving motor drives the screw rod to rotate, so that the two groups of translation blocks move towards the direction away from each other, and the upper vent is opened;
s3, the first driving motor drives the horizontal rotating shaft and the vertical rotating shaft to rotate, the first fan blade and the second fan blade rotate, external air passes through the high-voltage switch installation module from the upper vent and then enters the lower cavity through the lower vent, and meanwhile, the second vent supplies air towards the high-voltage switch installation module and the air circulates;
s4, when the temperature sensor detects that the environment temperature is lower than a set temperature threshold value, the controller starts an ultralow temperature protection mode, and the ventilation adjusting assembly, the air circulation assembly and the protective cover assembly work;
s5, the second driving motor drives the screw rod to rotate reversely, so that the two groups of translation blocks move towards the direction of approaching each other, and the upper vent is closed;
s6, starting the heating element, driving the horizontal rotating shaft and the vertical rotating shaft to rotate by the first driving motor, rotating the first fan blade and the second fan blade, enabling cold air to enter the lower cavity from the upper cavity through the lower vent, and meanwhile, enabling the second vent to face the high-voltage switch installation module to supply hot air and enabling hot air to circulate;
s7, a third driving motor drives the winding shaft to rotate, the traction rope extends, the bearing frame drives the heat preservation cover to descend, and the cabinet body is gradually covered until the magnet is adsorbed to the metal plate to form a sealed heat preservation cavity.
The technical scheme of the invention has the following beneficial technical effects:
the air circulation assembly and the ventilation adjusting assembly are matched, when the temperature in the cabinet is too high, the two groups of translation blocks are driven to be away through the rotation of the lead screw, the upper vent is opened, and the horizontal rotating shaft and the vertical rotating shaft rotate, so that air enters the lower vent and passes through the ventilation cavity to be discharged towards the upper cavity, the circulation and circulation of air are accelerated, and the rapid cooling is realized; when the temperature in the cabinet body is too low, the upper ventilation opening is opened and closed, and the heating element heats the air flowing in the cabinet body, so that the rapid temperature rise is realized;
the heat preservation cover is arranged, the heat preservation cover descends in a low-temperature environment, and a heat preservation cavity is formed outside the cabinet body through the adsorption of the metal plate and the magnet, so that the heat loss is reduced, the heat preservation effect is good, and the temperature rising speed is accelerated;
the first dust screen and the second dust screen are arranged to intercept dust and sundries and protect the device, and meanwhile, the first dredging hairbrush acts on the first dust screen and the second dredging hairbrush acts on the second dust screen, so that mesh blockage is avoided, and smoothness of air circulation is hindered.
Drawings
Fig. 1 is a schematic structural diagram of a high-voltage switch ultra-low temperature protection device in a cooling mode according to the present invention.
Fig. 2 is a schematic structural diagram of an ultra-low temperature protection device for a high-voltage switch in an ultra-low temperature protection mode according to the present invention.
Fig. 3 is a cross-sectional view of an ultra-low temperature protection device for a high-voltage switch according to the present invention.
Fig. 4 is a schematic diagram of an internal structure of a lower chamber of the high-voltage switch ultra-low temperature protection device according to the present invention.
Fig. 5 is an enlarged view of a position a of the ultra-low temperature protection device for the high-voltage switch according to the present invention.
Fig. 6 is an enlarged cross-sectional view of an upper vent in the ultra-low temperature protection device for the high voltage switch according to the present invention.
Fig. 7 is an enlarged view of the position B of the ultra-low temperature protection device for the high-voltage switch according to the present invention.
The attached drawings are marked as follows: 1. a cabinet body; 2. a high-voltage switch mounting module; 3. a partition plate; 4. an air circulation assembly; 5. a ventilation regulating assembly; 6. a protective cover assembly; 7. a ventilation cavity; 8. a first drive motor; 9. a horizontal rotating shaft; 10. a vertical rotating shaft; 11. a first gear; 12. a first fan blade; 13. a second fan blade; 14. a heating member; 15. a first dust screen; 16. a lower vent; 17. a second vent; 18. an upper vent; 19. a second drive motor; 20. a lead screw; 21. a translation block; 22. a slider; 23. a second dredging brush; 24. a second dust screen; 25. a dredging frame; 26. a first dredging brush; 27. mounting a cover; 28. a third drive motor; 29. a spool; 30. a hauling rope; 31. a heat-preserving cover; 32. a load-bearing frame; 33. a magnet; 34. a positioning roller; 35. a second gear; 36. a metal plate.
Detailed Description
Example 1
As shown in fig. 1-4 and 6, the ultra-low temperature protection device for the high-voltage switch provided by the invention comprises a cabinet body 1, a high-voltage switch installation module 2, a heating element 14 and a partition plate 3; a temperature sensor and a controller are arranged on the cabinet body 1; the partition plate 3 is arranged in the cabinet body 1 and divides the cabinet body 1 into an upper chamber and a lower chamber; the high-voltage switch installation module 2 is arranged in the upper chamber; the heating member 14 is disposed in the lower chamber; also comprises an air circulation assembly 4 and a ventilation regulating assembly 5; the air circulation assembly 4 is arranged in the lower chamber; the ventilation adjusting component 5 is arranged at the top end of the cabinet body 1; the air circulation assembly 4 comprises a first driving motor 8, a horizontal rotating shaft 9, a vertical rotating shaft 10, a first gear 11, a second gear 35, a first fan blade 12 and a second fan blade 13; a ventilation cavity 7 communicated with the upper cavity and the lower cavity is arranged on the cabinet body 1; a lower vent 16 is arranged on the clapboard 3; the lower end of the vertical rotating shaft 10 is connected with a main shaft of a first driving motor 8, and the upper end faces a lower ventilation opening 16; the second fan blades 13 are arranged on the vertical rotating shaft 10; the second gear 35 is connected with the vertical rotating shaft 10; the first gear 11 is in key connection with the horizontal rotating shaft 9 and is in meshed connection with the second gear 35; the first fan blades 12 are arranged in multiple groups, and the multiple groups of the first fan blades 12 are respectively arranged at two ends of the horizontal rotating shaft 9; the ventilation adjusting assembly 5 comprises a second driving motor 19, a lead screw 20, a translation block 21 and a slide block 22; an upper vent 18 is arranged at the top end of the cabinet body 1; a screw rod 20 driven by a second driving motor 19 is rotatably arranged on the upper vent 18, and two ends of the screw rod 20 are provided with symmetrical reverse threads; the translation blocks 21 and the sliding blocks 22 are arranged in two groups and are in one-to-one correspondence; the two groups of sliders 22 move horizontally in the upper ventilation opening 18 in a reverse direction and are respectively in threaded connection with two ends of the screw rod 20; translation piece 21 sets up in slider 22 upper end, and under the ultra-low temperature protection mode, two sets of translation pieces 21 splice and cover vent 18.
In an alternative embodiment, the wall of the lower chamber is provided with a first ventilation opening communicating with the ventilation chamber 7; the heating member 14 is provided on the first ventilation opening; the horizontal rotation shaft 9 faces the first ventilation opening.
In an alternative embodiment, the inner wall of the upper chamber is provided with a second ventilation opening 17 communicating with the ventilation chamber 7.
In an optional embodiment, the two sets of translation blocks 21 form a trapezoidal structure with a narrow upper cross section and a wide lower cross section, and the splicing ends are provided with tooth surfaces matched with each other, so that rainwater can be guided conveniently, the matching degree of the translation blocks 21 during splicing is improved, and the sealing effect is enhanced.
According to the invention, the air circulation component 4 is matched with the ventilation regulating component 5, when the temperature in the cabinet body 1 is too high, the screw rod 20 rotates to drive the two groups of translation blocks 21 to be away, the upper vent 18 is opened, and the horizontal rotating shaft 9 and the vertical rotating shaft 10 rotate, so that air enters the lower vent 16 and passes through the ventilation cavity 7 to be discharged towards the upper cavity, the circulation and circulation of air are accelerated, and the rapid cooling is realized; when the temperature in the cabinet body 1 is too low, the upper ventilation opening 18 is opened and closed, and the heating element 14 heats the air circulating in the cabinet body 1, so that the temperature is rapidly raised.
Example 2
As shown in fig. 4 and 7, on the basis of the above embodiment, the present invention is provided with a first dust screen 15 on the lower vent 16; the upper end of the vertical rotating shaft 10 rotatably penetrates through the first dustproof net 15 and is provided with a dredging frame 25; a first dredging brush 26 is arranged on the dredging frame 25; the first dredging brush 26 acts on the first dust screen 15.
In an alternative embodiment, the upper vent 18 is provided with a second dust screen 24; the lower end of the slide block 22 is provided with a second dredging brush 23; the second dredging brush 23 acts on the second dust screen 24.
The invention is provided with a first dust screen 15 and a second dust screen 24 for intercepting dust and sundries and protecting the device, and simultaneously, the first dredging hairbrush 26 acts on the first dust screen 15, and the second dredging hairbrush 23 acts on the second dust screen 24, thereby avoiding mesh blockage and hindering the smoothness of air circulation.
Example 3
As shown in fig. 3 and 5, the present invention further provides a protective cover assembly 6 on the basis of the above embodiments; the protective cover assembly 6 comprises a mounting cover 27, a third driving motor 28, a winding shaft 29, a traction rope 30, a heat-preserving cover 31 and a bearing frame 32; the mounting cover 27 is arranged at the top end of the cabinet body 1; the heat preservation cover 31 is of a telescopic structure and is arranged around the cabinet body 1, the upper end of the heat preservation cover is connected with the mounting cover 27, and the lower end of the heat preservation cover is connected with the bearing frame 32; the third driving motor 28 is arranged on the mounting cover 27, and the main shaft is in key connection with the winding shaft 29; the upper end of the hauling cable 30 is connected with the winding shaft 29, and the lower end is connected with the bearing frame 32.
In an alternative embodiment, the shield assembly 6 further comprises a magnet 33; the magnet 33 is arranged on the bearing frame 32; the bottom end of the cabinet 1 is provided with a ring-shaped metal plate 36, and attracts the magnet 33 in the ultra-low temperature protection mode.
In an alternative embodiment, the mounting cup 27 is provided with a positioning roller 34; the pull cord 30 is looped around the registration roller 34.
According to the invention, the protective cover assembly 6 is arranged, the heat-insulating cover 31 descends in a low-temperature environment, and a heat-insulating cavity is formed outside the cabinet body 1 through the adsorption of the metal plate 36 and the magnet 33, so that the heat loss is reduced, the heat-insulating effect is good, and the temperature rising speed is further accelerated.
Example 4
The invention also provides an ultralow temperature protection method for the high-voltage switch, which comprises the following steps of:
s1, when the temperature sensor detects that the environment temperature is higher than a set temperature threshold value, the controller starts a cooling mode, and the ventilation adjusting component 5 and the air circulation component 4 work;
s2, the second driving motor 19 drives the screw rod 20 to rotate, so that the two groups of translation blocks 21 move towards the direction away from each other, and the upper vent 18 is opened;
s3, the first driving motor 8 drives the horizontal rotating shaft 9 and the vertical rotating shaft 10 to rotate, the first fan blade 12 and the second fan blade 13 rotate, external air passes through the high-voltage switch installation module 2 from the upper ventilation opening 18 and then enters the lower cavity through the lower ventilation opening 16, and meanwhile, the second ventilation opening 17 supplies air to the high-voltage switch installation module 2, so that air circulates;
s4, when the temperature sensor detects that the environment temperature is lower than a set temperature threshold value, the controller starts an ultralow temperature protection mode, and the ventilation adjusting assembly 5, the air circulation assembly 4 and the protective cover assembly 6 work;
s5, the second driving motor 19 drives the screw rod 20 to rotate reversely, so that the two sets of translation blocks 21 move towards the direction of approaching each other, and the upper vent 18 is closed;
s6, starting a heating element 14, driving a horizontal rotating shaft 9 and a vertical rotating shaft 10 to rotate by a first driving motor 8, rotating a first fan blade 12 and a second fan blade 13, allowing cold air to enter a lower cavity from an upper cavity through a lower vent 16, and simultaneously allowing a second vent 17 to supply hot air to the high-voltage switch installation module 2, so that hot air circulates;
s7, the third driving motor 28 drives the winding shaft 29 to rotate, the traction rope 30 extends, the bearing frame 32 drives the heat preservation cover 31 to descend to cover the cabinet body 1 gradually until the magnet 33 and the metal plate 36 are adsorbed to form a sealed heat preservation cavity.
The ultralow temperature protection method for the high-voltage switch is simple to operate and high in intelligence, and effectively reduces the influence of high-temperature and low-temperature environments on the working performance of the high-voltage switch.
Claims (10)
1. A high-voltage switch ultralow-temperature protection device comprises a cabinet body (1), a high-voltage switch installation module (2), a heating element (14) and a partition plate (3); a temperature sensor and a controller are arranged on the cabinet body (1); the clapboard (3) is arranged in the cabinet body (1) and divides the cabinet body (1) into an upper chamber and a lower chamber; the high-voltage switch mounting module (2) is arranged in the upper cavity; a heating member (14) is disposed in the lower chamber; characterized in that the air conditioner also comprises an air circulation assembly (4) and a ventilation regulating assembly (5); the air circulation assembly (4) is arranged in the lower chamber; the ventilation adjusting component (5) is arranged at the top end of the cabinet body (1);
the air circulation assembly (4) comprises a first driving motor (8), a horizontal rotating shaft (9), a vertical rotating shaft (10), a first gear (11), a second gear (35), a first fan blade (12) and a second fan blade (13); a ventilation cavity (7) communicated with the upper cavity and the lower cavity is arranged on the cabinet body (1); a lower vent (16) is arranged on the clapboard (3); the lower end of the vertical rotating shaft (10) is connected with a main shaft of a first driving motor (8), and the upper end of the vertical rotating shaft faces a lower ventilation opening (16); the second fan blade (13) is arranged on the vertical rotating shaft (10); the second gear (35) is in key connection with the vertical rotating shaft (10); the first gear (11) is in key connection with the horizontal rotating shaft (9) and is simultaneously in meshed connection with the second gear (35); the first fan blades (12) are arranged in multiple groups, and the multiple groups of first fan blades (12) are respectively arranged at two ends of the horizontal rotating shaft (9);
the ventilation adjusting assembly (5) comprises a second driving motor (19), a lead screw (20), a translation block (21) and a sliding block (22); an upper vent (18) is arranged at the top end of the cabinet body (1); a screw rod (20) driven by a second driving motor (19) is rotatably arranged on the upper ventilation opening (18), and two ends of the screw rod (20) are provided with symmetrical reverse threads; the translation blocks (21) and the sliding blocks (22) are arranged in two groups and are in one-to-one correspondence; the two groups of sliding blocks (22) move horizontally in the upper ventilation opening (18) in a reverse direction and are respectively in threaded connection with the two ends of the screw rod (20); translation piece (21) set up in slider (22) upper end, and under the ultra-low temperature protection mode, two sets of translation pieces (21) splice and cover vent (18).
2. A high-voltage switch ultra-low temperature protection device as claimed in claim 1, wherein the wall of the lower chamber is provided with a first ventilation opening communicated with the ventilation chamber (7); a heating member (14) is provided on the first ventilation opening; the horizontal rotating shaft (9) faces the first ventilation opening.
3. A high-voltage switch ultra-low temperature protection device as claimed in claim 1, wherein the lower ventilation opening (16) is provided with a first dust screen (15); the upper end of the vertical rotating shaft (10) rotatably penetrates through the first dustproof net (15) and is provided with a dredging frame (25); a first dredging brush (26) is arranged on the dredging frame (25); the first dredging brush (26) acts on the first dust screen (15).
4. A high-voltage switch ultra-low temperature protection device as claimed in claim 1, characterized in that the inner wall of the upper chamber is provided with a second ventilation opening (17) communicated with the ventilation chamber (7).
5. The ultra-low temperature protector for the high-voltage switch as claimed in claim 1, wherein the two sets of translation blocks (21) are spliced to form a trapezoidal structure with a narrow top and a wide bottom in cross section, and the spliced ends are provided with mutually matched tooth surfaces.
6. A high-voltage switch ultra-low temperature protection device as claimed in claim 1, wherein the upper ventilation opening (18) is provided with a second dust screen (24); the lower end of the sliding block (22) is provided with a second dredging brush (23); the second dredging brush (23) acts on the second dust screen (24).
7. A high voltage switch ultra-low temperature protector according to claim 1, characterized by further comprising a protective cover assembly (6); the protective cover assembly (6) comprises a mounting cover (27), a third driving motor (28), a winding shaft (29), a traction rope (30), a heat preservation cover (31) and a bearing frame (32); the mounting cover (27) is arranged at the top end of the cabinet body (1); the heat preservation cover (31) is of a telescopic structure and is arranged around the cabinet body (1), the upper end of the heat preservation cover is connected with the mounting cover (27), and the lower end of the heat preservation cover is connected with the bearing frame (32); the third driving motor (28) is arranged on the mounting cover (27), and the main shaft is connected with the winding shaft (29) through a key; the upper end of the traction rope (30) is connected with the winding shaft (29), and the lower end is connected with the bearing frame (32).
8. A high-voltage switch ultra-low temperature protector according to claim 7, characterized by that, the protective cover assembly (6) further comprises a magnet (33); the magnet (33) is arranged on the bearing frame (32); the bottom end of the cabinet body (1) is provided with an annular metal plate (36), and the magnet (33) is adsorbed in the ultra-low temperature protection mode.
9. A high-voltage switch ultra-low temperature protection device as claimed in claim 7, characterized in that a positioning roller (34) is arranged on the mounting cover (27); the pulling rope (30) is wound around the positioning roller (34).
10. A method for ultra-low temperature protection of a high-voltage switch, comprising the device of any one of claims 1 to 9, characterized by the following steps:
s1, when the temperature sensor detects that the ambient temperature is higher than a set temperature threshold value, the controller starts a cooling mode, and the ventilation adjusting component (5) and the air circulation component (4) work;
s2, the second driving motor (19) drives the screw rod (20) to rotate, so that the two groups of translation blocks (21) move towards the direction away from each other, and the upper vent (18) is opened;
s3, the first driving motor (8) drives the horizontal rotating shaft (9) and the vertical rotating shaft (10) to rotate, the first fan blade (12) and the second fan blade (13) rotate, external air penetrates through the high-voltage switch installation module (2) from the upper ventilation opening (18) and then enters the lower cavity through the lower ventilation opening (16), and meanwhile the second ventilation opening (17) supplies air towards the high-voltage switch installation module (2) and the air circulates;
s4, when the temperature sensor detects that the environment temperature is lower than a set temperature threshold value, the controller starts an ultralow temperature protection mode, and the ventilation adjusting assembly (5), the air circulation assembly (4) and the protective cover assembly (6) work;
s5, the second driving motor (19) drives the screw rod (20) to rotate reversely, so that the two groups of translation blocks (21) move towards the direction of approaching each other, and the upper vent (18) is closed;
s6, starting a heating element (14), driving a horizontal rotating shaft (9) and a vertical rotating shaft (10) to rotate by a first driving motor (8), rotating a first fan blade (12) and a second fan blade (13), enabling cold air to enter a lower cavity from an upper cavity through a lower vent (16), and meanwhile, enabling a second vent (17) to send hot air towards a high-voltage switch installation module (2) and enabling hot air to circulate;
s7, the third driving motor (28) drives the winding shaft (29) to rotate, the traction rope (30) extends, the bearing frame (32) drives the heat preservation cover (31) to descend, the cabinet body (1) is gradually covered until the magnet (33) and the metal plate (36) are adsorbed, and a sealed heat preservation cavity is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110262921.5A CN113054572A (en) | 2021-03-10 | 2021-03-10 | High-voltage switch ultra-low temperature protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110262921.5A CN113054572A (en) | 2021-03-10 | 2021-03-10 | High-voltage switch ultra-low temperature protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113054572A true CN113054572A (en) | 2021-06-29 |
Family
ID=76511324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110262921.5A Withdrawn CN113054572A (en) | 2021-03-10 | 2021-03-10 | High-voltage switch ultra-low temperature protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113054572A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116234246A (en) * | 2023-02-15 | 2023-06-06 | 湖北工业大学 | CT secondary side overvoltage protection device |
-
2021
- 2021-03-10 CN CN202110262921.5A patent/CN113054572A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116234246A (en) * | 2023-02-15 | 2023-06-06 | 湖北工业大学 | CT secondary side overvoltage protection device |
| CN116234246B (en) * | 2023-02-15 | 2023-09-05 | 湖北工业大学 | CT secondary side overvoltage protection device |
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Application publication date: 20210629 |
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| WW01 | Invention patent application withdrawn after publication |