CN116706755B - Environment-friendly gas-insulated inflatable cabinet - Google Patents
Environment-friendly gas-insulated inflatable cabinet Download PDFInfo
- Publication number
- CN116706755B CN116706755B CN202310938204.9A CN202310938204A CN116706755B CN 116706755 B CN116706755 B CN 116706755B CN 202310938204 A CN202310938204 A CN 202310938204A CN 116706755 B CN116706755 B CN 116706755B
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- tube
- adjusting
- rod
- welded
- frame
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- 239000007789 gas Substances 0.000 claims abstract description 32
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 22
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 19
- 230000008569 process Effects 0.000 abstract description 19
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 230000007306 turnover Effects 0.000 abstract description 4
- 238000004891 communication Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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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
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
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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
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/02—Details
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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
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
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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
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/28—Earthing arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/075—Earthing arrangements
Abstract
The invention discloses an environment-friendly gas-insulated gas-filled cabinet, and relates to the technical field of power distribution equipment. According to the invention, the safety box and the busbar chamber are communicated, and the pressure balance of the safety box and the busbar chamber is kept in an initial state, so that the inflatable cabinet is improved in design from the internal structure, and when the temperature in the busbar chamber is increased, nitrogen in the busbar chamber can be inflated and inflated into the safety box for pressure relief; otherwise, when the temperature is recovered to be normal, the gas is refilled into the busbar chamber; after the inflatable cabinet is connected with an external cable, when abnormal heat release or discharge occurs in the bus tube and the heat conduction cavity to generate high temperature, SF6 gas in the inflatable cabinet is inflated into the pneumatic box through the pneumatic tube, then the inflatable cabinet is inflated to push the adjusting plug rod to slide through the starting tube, the adjusting plug rod can drive the adjusting plate to turn over in the sliding process, the starting plug rod is driven to slide off the driving worm, the input plug rod is reversely slid to drive the output plug rod to reset, and the adjusting rod is pushed to realize the brake separating process.
Description
Technical Field
The invention belongs to the technical field of power distribution equipment, and particularly relates to an environment-friendly gas-insulated gas-filled cabinet.
Background
The inflatable cabinet is generally electric equipment for uniformly allocating high-voltage and low-voltage distribution lines, and can perform time-switching operation on various power supply abnormality phenomena generated in the power supply process; in the prior art equipment, a mechanism for driving the opening operation in the gas-filled cabinet is usually inert insulating gas filled in the gas-filled cabinet; in the prior art, inert gas filled in the inflatable cabinet is SF6 generally, and the insulativity and stability of the gas can ensure the use safety of various components in the inflatable cabinet when the inflatable cabinet breaks down; however, SF6 gas has high preparation cost, and stability generally can be similar to that of nitrogen gas only within 180 ℃, and in actual operation of the gas-filled cabinet, internal temperature change caused by power failure tends to be higher than the stable temperature, so that hidden danger still exists when SF6 gas is used; in addition, because SF6 gas is easy to burst the holding equipment in a closed space and a high-pressure environment, the actual working safety of the inflatable cabinet is greatly threatened; therefore, the internal structure and the opening driving principle of the air charging cabinet are improved by combining the prior art, and the environment-friendly gas-insulated air charging cabinet is designed.
Disclosure of Invention
The invention aims to provide an environment-friendly gas-insulated gas-filled cabinet, which solves the problems that the existing gas-filled cabinet has limited gas-containing stable conditions and has certain potential safety hazard.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an environment-friendly gas-insulated gas-filled cabinet which comprises a cabinet body frame, a hand truck frame, a safety box and a working assembly, wherein the upper surface of the cabinet body frame and the safety box are welded and fixed into an integrated structure, and the hand truck frame is slidably nested in the cabinet body frame; the working assembly is arranged in the cabinet body frame;
the inner surface of the cabinet frame is fixedly welded with a partition plate frame, the interior of the cabinet frame is divided into a busbar chamber, a child row chamber and a ground row chamber through the partition plate frame, and the busbar chamber, the child row chamber and the ground row chamber are mutually airtight and isolated; the safety box is communicated with the interior of the busbar chamber through a double-way valve; nitrogen is filled in the busbar chamber and the safety box; by combining the structure, the safety box and the busbar chamber are in a communication state, and the safety box and the busbar chamber keep air pressure balance in an initial state, and when the temperature in the busbar chamber is increased, nitrogen in the busbar chamber can be expanded and filled into the safety box for pressure relief; otherwise, when the temperature is recovered to be normal, the gas is refilled into the busbar chamber.
Further, the working assembly comprises a guide connection column, a clutch tube, a bus tube, a ground tube and a lead tube; one side surface of the guide connecting column is welded and fixed with the bus tube and the ground wire tube, wherein the bus tube and the ground wire tube are respectively arranged at two opposite ends of the guide connecting column; the clutch tube is arranged between the bus tube and the ground wire tube, and the bus tube and the ground wire tube are both communicated with the clutch tube in a welding way; the bus tube is connected with a power supply cable externally connected with the inflatable cabinet, the ground tube is grounded, the bus tube and the ground tube are mutually insulated, and meanwhile, the bus tube and the ground tube are hermetically isolated;
the conductive connecting column is of a tubular structure, the inner surface of the conductive connecting column is embedded with a conductive column, the conductive column is of a U-shaped rod structure, one end of the conductive column is embedded and extended into the bus tube, and the other end of the conductive column is embedded and extended into the ground wire tube; the clutch tube is characterized in that the inner surface of the clutch tube is slidably clamped with a guide rod, guide plates are welded and fixed at the upper end and the lower end of the guide rod, the upper end guide plate is arranged in the bus tube, and the lower end guide plate is arranged in the ground tube; conductive rings are welded at the two opposite ends of the conductive column, and the two conductive rings are in sliding contact with the conductive rod; wherein the guide link rod can be respectively in conductive contact with the busbar tube and the ground wire tube; in the sliding process of the guide link rod, the guide link rod can be electrically connected with the same-direction conductive rings, wherein the two conductive rings are mutually insulated.
Further, a bus post is welded and fixed on the inner surface of the bus tube, wherein the upper end of the bus post extends to the outside of the bus tube, and a bus bar is welded at the upper end of the bus post; the inner surface of the ground wire pipe is welded with a ground wire column, and the lower end of the ground wire column extends to the outside of the ground wire pipe; by combining the structure, the guide rod can be simultaneously connected with the conductive ring and the bus bar at the upper end when sliding upwards, so that an external power supply cable of the air charging cabinet is connected; similarly, when the guide link rod slides downwards, the guide link rod can be connected with the conductive ring and the ground wire column at the lower end at the same time, so that the ground wire is connected; when the two conditions are respectively carried out, the opening and closing process of the air charging cabinet can be realized, namely, an external power supply cable or an earth wire is connected; the lead tube is arranged in the sub-row chamber, and an extension rod is welded on one side surface of the conductive column and is welded to the lead tube in an extending manner; the middle section of the guide link rod is of a toothed bar structure, the rotating shaft on the inner surface of the clutch tube is connected with an adjusting gear, and the adjusting gear is meshed with the guide link rod.
Further, the two opposite ends of the rotating shaft of the adjusting gear are welded and fixed with adjusting rods; a driving cylinder is fixedly embedded between the sub-row chamber and the ground row chamber, an input plug rod and an output plug rod are slidably clamped in the driving cylinder, and a piston structure is formed between the driving cylinder and the sub-row chamber; one end of the output plug rod extends to the adjusting rod and is in sliding clamping with the adjusting rod, and meanwhile the output plug rod is in rotary fit with the adjusting rod; by combining the structure, the output plug rod can be driven to slide in the sliding process of the input plug rod, so that the adjusting rod is pushed, the adjusting gear is driven to rotate, and the guide link rod is driven to slide by utilizing the meshing structure of the adjusting gear and the toothed bar of the guide link rod, so that the switching-on and switching-off process is realized;
a transmission frame is fixedly welded on the inner surface of the sub-row chamber, a pneumatic box is fixedly welded on the inner surface of the transmission frame, and a pneumatic tube is fixedly welded between the pneumatic box and the guide connecting column; the inner surface of the transmission frame is slidably clamped with a driving frame, a driving shaft and a driving worm are connected with a rotating shaft on the inner surface of the driving frame, and the driving shaft is in linkage with the driving worm through a gear meshing structure; a starting bolt is fixedly welded at one end of the input plug rod and meshed with the driving worm; with above-mentioned structure cooperation, the drive shaft utilizes gear engagement structure to drive the rotation of drive worm, and the drive worm utilizes its and the meshing structure between the start-up bolt to drive the slip of input cock stem, and then cooperates to drive the slip of output cock stem, accomplishes foretell divide-shut brake work.
Further, a limit notch is formed in one side face of the transmission frame, and one end of the driving shaft extends to the outside of the transmission frame through the limit notch; the outer side surface of the wall plate of the sub-row chamber is slidably clamped with a plurality of connecting blocks, and a valve rod is connected between the connecting blocks through a rotating shaft; the two opposite ends of the valve rod are provided with worm sections, one end of the driving shaft is welded with a driving gear, and the worm sections are meshed with the driving gear; when the valve rod is rotated, worm sections at two ends of the valve rod drive the driving shaft to rotate through a meshing structure with the driving gear, and then the work of adjusting the input plug rod is completed.
Further, adjusting pipes are welded and fixed on the outer side surfaces of the wall plates of the sub-row chambers, adjusting plug rods are slidably clamped in the two opposite ends of the adjusting pipes, and a piston structure is formed between the adjusting plug rods and the adjusting pipes; one end of the adjusting plug rod is hinged with a connecting rod;
the inner surface of the transmission frame is also connected with an adjusting shaft in a rotating way, an adjusting plate is welded on the peripheral side surface of the adjusting shaft, and the adjusting plate and the driving frame are both permanent magnets; one end of the adjusting shaft is fixedly welded with an adjusting wheel, and the adjusting wheel is arranged outside the transmission frame; one end of the connecting rod is eccentrically hinged with the adjusting wheel; by combining the structure, the connecting rod is eccentrically hinged with the adjusting wheel, and the adjusting plug rod can drive the adjusting wheel to rotate in the sliding process, so that the adjusting shaft and the adjusting plate are driven to turn over; in the structure, the adjusting plate can drive the driving frame to slide up and down by utilizing the magnetic attraction and magnetic repulsion between the adjusting plate and the driving frame in the overturning process; and when the driving frame slides upwards, the starting bolt can be simultaneously driven to slide off the driving worm, so that the input plug rod slides reversely to drive the output plug rod to reset, and further the brake is opened.
Further, a starting tube is welded and communicated between the middle section of the adjusting tube and the pneumatic box; the inside of the guide connecting column is divided into a heat conducting cavity and an isolating cavity through a partition plate frame, wherein the heat conducting cavity is isolated from the isolating cavity; the bus tube, the heat conducting cavity, the pneumatic tube and the pneumatic box are sequentially communicated, and SF6 gas is filled between the four interiors; by combining the structure, the inflatable cabinet is connected with an external cable, and when abnormal heat release or discharge occurs in the bus tube and the heat conduction cavity to generate high temperature, SF6 gas in the inflatable cabinet is inflated into the pneumatic box through the pneumatic tube, and then the inflatable cabinet is inflated to push the adjusting plug rod to slide through the starting tube, so that the brake separating process is realized.
Further, a lead wire row is welded on one side face of the handcart frame, and the lead wire row is in plug-in fit with the lead wire pipe.
The invention has the following beneficial effects:
according to the invention, the safety box and the busbar chamber are communicated, and the pressure balance of the safety box and the busbar chamber is kept in an initial state, so that the inflatable cabinet is improved in design from the internal structure, and when the temperature in the busbar chamber is increased, nitrogen in the busbar chamber can be inflated and inflated into the safety box for pressure relief; otherwise, when the temperature is recovered to be normal, the gas is refilled into the busbar chamber;
on the other hand, after the inflatable cabinet is connected with an external cable, when abnormal heat release or discharge occurs in the bus tube and the heat conduction cavity so as to generate high temperature, SF6 gas in the inflatable cabinet is inflated into the pneumatic box through the pneumatic tube, and then the inflatable cabinet expands to push the adjusting plug rod to slide through the starting tube, and the adjusting plug rod can drive the adjusting wheel to rotate in the sliding process so as to drive the adjusting shaft and the adjusting plate to turn over; the adjusting plate can drive the driving frame to slide up and down by utilizing the magnetic attraction and repulsion between the adjusting plate and the driving frame in the overturning process; and a reset spring is further arranged between the input plug rod and the driving cylinder, wherein the input plug rod pushes the output plug rod to realize closing, and then when the driving frame slides upwards, the starting plug can be simultaneously driven to slide off the driving worm, so that the input plug rod reversely slides to drive the output plug rod to reset, and then the adjusting rod is pushed to drive the adjusting gear to rotate, and the adjusting gear and the toothed bar meshing structure of the guide bar are utilized to drive the guide bar to slide, so that the brake separating process is realized.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an assembled structural view of an environment-friendly gas insulated switchgear of the present invention;
FIG. 2 is a top view of an environmentally friendly gas insulated switchgear of the present invention;
FIG. 3 is a schematic view of the structure of section A-A of FIG. 2;
FIG. 4 is a schematic view of the structure of section C-C in FIG. 3;
FIG. 5 is a partial, displayed view of portion D of FIG. 4;
FIG. 6 is a schematic view of the structure of section B-B in FIG. 2;
FIG. 7 is a partial, displayed view of portion E of FIG. 6;
FIG. 8 is a schematic view of the structure of section F-F in FIG. 6;
FIG. 9 is a partial, displayed view of portion I of FIG. 8;
FIG. 10 is a schematic view of the structure of section G-G in FIG. 6;
fig. 11 is a partially shown view of section J of fig. 10.
In the drawings, the list of components represented by the various numbers is as follows:
1. a cabinet frame; 2. a hand-held frame; 3. a safety box; 4. partition grillage; 5. a busbar chamber; 6. a sub-row chamber; 7. a ground discharge chamber; 8. a conductive connecting column; 9. a clutch tube; 10. a bus tube; 11. a ground pipe; 12. a lead tube; 13. a guide link; 14. a lead plate; 15. a conductive ring; 16. a bus bar; 17. a busbar; 18. a ground post; 19. a conductive post; 20. an extension rod; 21. an adjusting gear; 22. an adjusting rod; 23. a drive cylinder; 24. an input plug rod; 25. an output plug rod; 26. a transmission frame; 27. a pneumatic box; 28. a pneumatic tube; 29. a drive rack; 30. a drive shaft; 31. driving a worm; 32. starting a bolt; 33. a limit notch; 34. a connecting block; 35. a valve stem; 36. a drive gear; 37. an adjusting tube; 38. adjusting the plug rod; 39. a connecting rod; 40. an adjusting shaft; 41. an adjusting plate; 42. an adjusting wheel; 43. starting the tube; 44. a heat conducting cavity; 45. an isolation chamber; 46. and a lead wire row.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper," "middle," "outer," "inner," and the like indicate an orientation or a positional relationship, and are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-11, the invention discloses an environment-friendly gas insulated air-filled cabinet, which comprises a cabinet body frame 1, a handcart frame 2, a safety box 3 and a working assembly, wherein the upper surface of the cabinet body frame 1 and the safety box 3 are welded and fixed into an integrated structure, and the handcart frame 2 is slidably nested in the cabinet body frame 1; the working assembly is arranged in the cabinet body frame 1;
the inner surface of the cabinet body frame 1 is fixedly welded with a partition plate frame 4, the interior of the cabinet body frame 1 is divided into a busbar chamber 5, a child row chamber 6 and a ground row chamber 7 through the partition plate frame 4, and the busbar chamber 5, the child row chamber 6 and the ground row chamber 7 are mutually isolated in an airtight manner; the safety box 3 is communicated with the inside of the busbar chamber 5 through a double-way valve; the busbar chamber 5 and the safety box 3 are filled with nitrogen; by combining the structure, the safety box 3 and the busbar chamber 5 are in a communication state, and the two are kept in air pressure balance in an initial state, and when the temperature in the busbar chamber 5 is increased, nitrogen in the busbar chamber 5 can be expanded and filled into the safety box 3 for pressure relief; otherwise, when the temperature returns to normal, the gas is refilled into the busbar chamber 5.
Preferably, the working assembly comprises a guide connecting column 8, a clutch tube 9, a bus tube 10, a ground wire tube 11 and a lead tube 12; one side surface of the guide connection column 8 is welded and fixed with the bus tube 10 and the ground tube 11, wherein the bus tube 10 and the ground tube 11 are respectively arranged at two opposite ends of the guide connection column 8; the clutch tube 9 is arranged between the bus tube 10 and the ground tube 11, and the bus tube 10 and the ground tube 11 are both communicated with the clutch tube 9 in a welding way; the bus tube 10 is used for being connected with a power supply cable externally connected with the inflatable cabinet, the ground tube 11 is used for being grounded, the bus tube 10 and the ground tube 11 are mutually insulated, and meanwhile, the bus tube 10 and the ground tube 11 are hermetically isolated;
the conductive connecting column 8 is of a tubular structure, the inner surface of the conductive connecting column is embedded with a conductive column 19, the conductive column 19 is of a U-shaped rod structure, one end of the conductive column is embedded and extended into the bus tube 10, and the other end of the conductive column is embedded and extended into the ground wire tube 11; the inner surface of the clutch tube 9 is slidably clamped with a guide rod 13, the upper end and the lower end of the guide rod 13 are fixedly welded with guide plates 14, the upper end guide plates 14 are arranged in the bus tube 10, and the lower end guide plates 14 are arranged in the ground tube 11; the two opposite ends of the conductive post 19 are welded with conductive rings 15, and the two conductive rings 15 are in sliding contact with the conductive rod 13; wherein the conductive rod 13 is capable of electrically conductive contact with the busbar tube 10 and the ground tube 11, respectively; during the sliding of the conductive rod 13, it is electrically connected to the conductive rings 15 in the same direction, wherein the two conductive rings 15 are insulated from each other.
Preferably, the bus bar column 16 is welded and fixed on the inner surface of the bus bar tube 10, wherein the upper end of the bus bar column 16 extends to the outside of the bus bar tube 10, and the upper end of the bus bar column is also welded with a bus bar 17; the inner surface of the ground wire pipe 11 is welded with a ground wire post 18, and the lower end of the ground wire post 18 extends to the outside of the ground wire pipe 11; by combining the structure, the conducting rod 13 can be simultaneously connected with the conducting ring 15 and the bus bar 16 at the upper end when sliding upwards, so as to be connected with an external power supply cable of the inflatable cabinet; similarly, when the guide link rod 13 slides downwards, the guide link rod can be simultaneously connected with the conductive ring 15 and the ground wire column 18 at the lower end, so that the ground wire is connected; when the two conditions are respectively carried out, the opening and closing process of the air charging cabinet can be realized, namely, an external power supply cable or an earth wire is connected; the lead tube 12 is arranged in the sub-row chamber 6, an extension rod 20 is welded on one side surface of the conductive post 19, and the extension rod 20 is welded to the lead tube 12 in an extending manner; the middle section of the guide link rod 13 is of a toothed bar structure, the inner surface of the clutch tube 9 is connected with an adjusting gear 21 in a rotating shaft way, and the adjusting gear 21 is meshed with the guide link rod 13.
Preferably, the adjusting lever 22 is welded and fixed at the opposite ends of the rotating shaft of the adjusting gear 21; a driving cylinder 23 is fixedly embedded between the sub-row chamber 6 and the ground row chamber 7, an input plug rod 24 and an output plug rod 25 are slidably clamped in the driving cylinder 23, and a piston structure is formed between the driving cylinder 23 and the input plug rod 24; one end of the output plug rod 25 extends to and is in sliding engagement with the adjusting rod 22, and meanwhile the output plug rod 25 is in rotary fit with the adjusting rod 22; with the above structure, the input plug rod 24 can drive the output plug rod 25 to slide in the sliding process, so as to push the adjusting rod 22, thereby driving the adjusting gear 21 to rotate, and driving the guide link rod 13 to slide by utilizing the toothed bar meshing structure of the adjusting gear 21 and the guide link rod 13, so as to realize the switching-on and switching-off process;
a transmission frame 26 is welded and fixed on the inner surface of the sub-row chamber 6, a pneumatic box 27 is welded and fixed on the inner surface of the transmission frame 26, and a pneumatic pipe 28 is welded and communicated between the pneumatic box 27 and the guide connecting column 8; the inner surface of the transmission frame 26 is slidably clamped with a driving frame 29, a driving shaft 30 and a driving worm 31 are connected with the inner surface of the driving frame 29 in a rotating shaft mode, and the driving shaft 30 is in linkage with the driving worm 31 through a gear meshing structure; a starting bolt 32 is welded and fixed at one end of the input plug rod 24, and the starting bolt 32 is meshed with the driving worm 31; with the above structure cooperation, drive shaft 30 utilizes the gear engagement structure to drive worm 31 rotatory, and drive worm 31 utilizes its and the meshing structure between the start pin 32 to drive the slip of input cock stem 24, and then the cooperation drives output cock stem 25 and slides, accomplishes the aforesaid divide-shut brake work.
Preferably, a limit notch 33 is formed on one side surface of the transmission frame 26, and one end of the driving shaft 30 extends to the outside of the transmission frame 26 through the limit notch 33; the outer side surface of the wall plate of the sub-row chamber 6 is slidably clamped with a plurality of connecting blocks 34, and a valve rod 35 is connected between the connecting blocks 34 in a rotating way; the opposite ends of the valve rod 35 are provided with worm sections, one end of the driving shaft 30 is welded with a driving gear 36, and the worm sections are meshed with the driving gear 36; the valve rod 35 is an opening and closing adjusting mechanism outside the air charging cabinet, and when the valve rod 35 is rotated, worm sections at two ends of the valve rod drive the driving shaft 30 to rotate through a meshing structure with the driving gear 36, so that the work of adjusting the input plug rod 24 is completed.
Preferably, the outer side surface of the wall plate of the sub-row chamber 6 is also welded and fixed with an adjusting pipe 37, the inner parts of two opposite ends of the adjusting pipe 37 are respectively and slidably clamped with an adjusting plug rod 38, and a piston structure is formed between the adjusting plug rods 38 and the adjusting pipe 37; one end of the adjusting plug rod 38 is hinged with a connecting rod 39;
the inner surface of the transmission frame 26 is also connected with an adjusting shaft 40 in a rotating shaft way, an adjusting plate 41 is welded on the side surface of the circumference of the adjusting shaft 40, and the adjusting plate 41 and the driving frame 29 are both permanent magnets; an adjusting wheel 42 is welded and fixed at one end of the adjusting shaft 40, and the adjusting wheel 42 is arranged outside the transmission frame 26; one end of the connecting rod 39 is eccentrically hinged with the adjusting wheel 42; in combination with the above structure, since the connecting rod 39 is eccentrically hinged with the adjusting wheel 42, the adjusting plug rod 38 can drive the adjusting wheel 42 to rotate during sliding, and further drive the adjusting shaft 40 and the adjusting plate 41 to turn over; in the above structure, the adjusting plate 41 can drive the driving frame 29 to slide up and down by utilizing the magnetic attraction and repulsion between the adjusting plate and the driving frame 29 in the overturning process; as shown in the attached drawing, a return spring is further disposed between the input plug rod 24 and the driving cylinder 23, where the input plug rod 24 pushes the output plug rod 25 to implement switching on, and then when the driving frame 29 slides up, the start pin 32 can be simultaneously driven to slide off the driving worm 31, so that the input plug rod 24 slides reversely to drive the output plug rod 25 to reset, and further switching off is implemented.
Preferably, an actuating tube 43 is welded and communicated between the middle section of the adjusting tube 37 and the pneumatic box 27; the inside of the conductive connecting column 8 is divided into a heat conducting cavity 44 and an isolating cavity 45 through a partition plate frame 4, wherein the heat conducting cavity 44 and the isolating cavity 45 are isolated from each other; the bus tube 10, the heat conducting cavity 44, the pneumatic tube 28 and the pneumatic box 27 are sequentially communicated, and SF6 gas is filled between the four interiors; in combination with the above structure, when the inflatable cabinet is connected to an external cable and abnormal heat release or discharge occurs in the bus tube 10 and the heat conducting cavity 44 to generate high temperature, SF6 gas in the inflatable cabinet is inflated into the pneumatic box 27 through the pneumatic tube 28, and then the inflatable cabinet expands to push the adjusting plug rod 38 to slide through the actuating tube 43, so that the brake separating process is realized.
Preferably, a lead wire row 46 is welded on one side of the hand truck frame 2, and the lead wire row 46 is in plug-in fit with the lead wire pipe 12.
It should be added that, in the present technical solution, the valve rod 35 mainly functions to adjust the position of the input plug rod 24, so as to change the opening and closing state; in actual work, in a normal state, the airtight environment in the inflatable cabinet keeps a relatively balanced state, namely the nitrogen gas pressures in the safety box 3 and the busbar chamber 5 are relatively balanced; when the bus working environment corresponding to the bus chamber 5 has the load problems of abnormal electric arc, abnormal heating or short circuit and the like, the interior of the bus chamber 5 is heated briefly, the temperature in the bus tube 10 and the heat conducting cavity 44 is raised, nitrogen in the bus chamber 5 is pressed into the safety box 3 in a heat conduction mode, and SF6 gas is slowly injected into the regulating tube 37; when the temperature is raised continuously, the regulating plug rod 38 in the regulating pipe 37 pushes the regulating wheel 42 to rotate, so that the starting bolt 32 is separated from the driving worm 31, the input plug rod 24 rebounds under the action of the reset spring and drives the output plug rod 25 to reset, the guide link rod 13 is driven to slide downwards to realize the brake separating work, and the residual electric quantity of the lead wire row 46 is led into the ground wire;
because an electric arc is generated between the lead plate 14 and the bus bar 16 in the opening process, SF6 gas in the bus bar chamber 5 can be filled into the gap between the lead plate 14 and the bus bar 16 to insulate; meanwhile, in order to further extinguish arc, an arc striking device is additionally arranged between the guide connecting column 8 and the bus tube 10, and the structure is a capacitor structure, namely, a positive plate and a negative plate of the capacitor structure are respectively connected with the bus column 16 and the conductive column 19, and an arc is connected to the inside of the arc striking device at the moment of switching off and the residual electric quantity is stored.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (2)
1. The utility model provides an environment-friendly gas insulated cabinet, includes cabinet body frame (1), handcart frame (2), safe box (3) and work subassembly, its characterized in that: the upper surface of the cabinet body frame (1) and the safety box (3) are welded and fixed into an integrated structure, and the handcart frame (2) is slidably nested in the cabinet body frame (1); the working assembly is arranged in the cabinet body frame (1);
the inner surface of the cabinet body frame (1) is fixedly welded with a partition plate frame (4), the interior of the cabinet body frame (1) is divided into a busbar chamber (5), a child row chamber (6) and a ground row chamber (7) through the partition plate frame (4), and the busbar chamber (5), the child row chamber (6) and the ground row chamber (7) are mutually isolated in an airtight manner; the safety box (3) is communicated with the inside of the busbar chamber (5) through a double-way valve; the busbar chamber (5) and the safety box (3) are filled with nitrogen;
the working assembly comprises a guide connecting column (8), a clutch tube (9), a bus tube (10), a ground wire tube (11) and a lead tube (12); one side surface of the guide connecting column (8) is welded and fixed with the bus tube (10) and the ground wire tube (11), wherein the bus tube (10) and the ground wire tube (11) are respectively arranged at two opposite ends of the guide connecting column (8); the clutch tube (9) is arranged between the bus tube (10) and the ground wire tube (11), and the bus tube (10) and the ground wire tube (11) are both communicated with the clutch tube (9) in a welding way;
the conductive connecting column (8) is of a tubular structure, the inner surface of the conductive connecting column is embedded with a conductive column (19), the conductive column (19) is of a U-shaped rod structure, one end of the conductive column is embedded and extended into the bus tube (10), and the other end of the conductive column is embedded and extended into the ground wire tube (11); the clutch tube (9) is characterized in that a guide link rod (13) is slidably clamped on the inner surface of the clutch tube (9), guide plates (14) are fixedly welded at the upper end and the lower end of the guide link rod (13), the upper guide plates (14) are arranged in the bus tube (10), and the lower guide plates (14) are arranged in the ground tube (11); the two opposite ends of the conductive column (19) are welded with conductive rings (15), and the two conductive rings (15) are in sliding contact with the conductive rod (13);
the bus bar (16) is welded and fixed on the inner surface of the bus tube (10), wherein the upper end of the bus bar (16) extends to the outside of the bus tube (10), and the upper end of the bus bar is welded with a bus bar (17); the inner surface of the ground wire pipe (11) is welded with a ground wire column (18), and the lower end of the ground wire column (18) extends to the outside of the ground wire pipe (11); the lead tube (12) is arranged in the sub-row chamber (6), an extension rod (20) is welded on one side surface of the conductive column (19), and the extension rod (20) is welded to the lead tube (12) in an extending manner; the middle section of the guide link rod (13) is of a toothed bar structure, an adjusting gear (21) is connected with a rotating shaft on the inner surface of the clutch tube (9), and the adjusting gear (21) is meshed with the guide link rod (13);
the two opposite ends of the rotating shaft of the adjusting gear (21) are welded and fixed with adjusting rods (22); a driving cylinder (23) is fixedly embedded between the sub-row chamber (6) and the ground row chamber (7), an input plug rod (24) and an output plug rod (25) are slidably clamped in the driving cylinder (23), and a piston structure is formed between the driving cylinder (23) and the input plug rod; one end of the output plug rod (25) extends to the adjusting rod (22) and is in sliding engagement with the adjusting rod, and meanwhile the output plug rod (25) is in rotary fit with the adjusting rod (22);
a transmission frame (26) is fixedly welded on the inner surface of the sub-row chamber (6), a pneumatic box (27) is fixedly welded on the inner surface of the transmission frame (26), and a pneumatic pipe (28) is fixedly welded between the pneumatic box (27) and the guide connecting column (8); the inner surface of the transmission frame (26) is slidably clamped with a driving frame (29), a driving shaft (30) and a driving worm (31) are connected with the inner surface of the driving frame (29) in a rotating shaft mode, and the driving shaft (30) is in linkage with the driving worm (31) through a gear meshing structure; a starting bolt (32) is welded and fixed at one end of the input plug rod (24), and the starting bolt (32) is meshed with the driving worm (31);
a limit notch (33) is formed in one side surface of the transmission frame (26), and one end of the driving shaft (30) extends to the outside of the transmission frame (26) through the limit notch (33); the outer side surface of the wall plate of the sub-row chamber (6) is slidably clamped with a plurality of connecting blocks (34), and a valve rod (35) is connected between the connecting blocks (34) in a rotating shaft manner; the two opposite ends of the valve rod (35) are provided with worm sections, one end of the driving shaft (30) is welded with a driving gear (36), and the worm sections are meshed with the driving gear (36);
an adjusting pipe (37) is welded and fixed on the outer side surface of the wall plate of the sub-row chamber (6), adjusting plug rods (38) are slidably clamped in the two opposite ends of the adjusting pipe (37), and a piston structure is formed between the adjusting plug rods (38) and the adjusting pipe (37); one end of the adjusting plug rod (38) is hinged with a connecting rod (39);
an adjusting shaft (40) is also connected to the inner surface of the transmission frame (26) in a rotating way, an adjusting plate (41) is welded on the peripheral side surface of the adjusting shaft (40), and the adjusting plate (41) and the driving frame (29) are both permanent magnets; an adjusting wheel (42) is fixedly welded at one end of the adjusting shaft (40), and the adjusting wheel (42) is arranged outside the transmission frame (26); one end of the connecting rod (39) is eccentrically hinged with the adjusting wheel (42);
a starting tube (43) is welded and communicated between the middle section of the regulating tube (37) and the pneumatic box (27); the inside of the conductive connecting column (8) is provided with a heat conducting cavity (44) and an isolating cavity (45) through a separation plate frame (4), wherein the heat conducting cavity (44) and the isolating cavity (45) are isolated from each other; the bus tube (10), the heat conducting cavity (44), the pneumatic tube (28) and the pneumatic box (27) are sequentially communicated, and SF6 gas is filled between the four interiors.
2. An environment-friendly gas insulated switchgear according to claim 1, wherein a lead wire row (46) is welded on one side of the handcart frame (2), and the lead wire row (46) is in plug-in fit with the lead wire pipe (12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310938204.9A CN116706755B (en) | 2023-07-28 | 2023-07-28 | Environment-friendly gas-insulated inflatable cabinet |
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| CN202310938204.9A CN116706755B (en) | 2023-07-28 | 2023-07-28 | Environment-friendly gas-insulated inflatable cabinet |
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| CN116706755B true CN116706755B (en) | 2023-10-20 |
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| Publication number | Publication date |
|---|---|
| CN116706755A (en) | 2023-09-05 |
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