CN117153613A - Multifunctional composite shell device and use method - Google Patents
Multifunctional composite shell device and use method Download PDFInfo
- Publication number
- CN117153613A CN117153613A CN202311091306.8A CN202311091306A CN117153613A CN 117153613 A CN117153613 A CN 117153613A CN 202311091306 A CN202311091306 A CN 202311091306A CN 117153613 A CN117153613 A CN 117153613A
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- Prior art keywords
- shell
- multifunctional composite
- channel
- composite shell
- shell device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000003068 static effect Effects 0.000 claims abstract description 22
- 238000009413 insulation Methods 0.000 claims description 11
- 238000003754 machining Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 239000003463 adsorbent Substances 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 10
- 230000005684 electric field Effects 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/025—Terminal arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/64—Protective enclosures, baffle plates, or screens for contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/021—Use of solid insulating compounds resistant to the contacting fluid dielectrics and their decomposition products, e.g. to SF6
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
- H01H2009/526—Cooling of switch parts of the high voltage switches
Landscapes
- Circuit Breakers (AREA)
Abstract
The invention discloses a multifunctional composite shell device and a use method thereof, belonging to the technical field of high-voltage electrical appliances; the device comprises a housing; the shell is of a hollow cylinder structure, one end of the shell is of an upper side structure, and the other end of the shell is of a lower side structure; two outgoing terminals are tangentially arranged on the side wall of the shell close to the upper structure along the circumference; the lower side structure is in a ladder shape and comprises a first ladder, a second ladder and a third ladder which are concentrically arranged from the outside to the inside of the circumference; the inner part of the shell is used for connecting a static arc contact system; a gap is reserved between the third step and the static arc contact system and is used as a first channel for air flow to pass through. Can be used as a pressure-bearing member and a main loop part, and has the functions of bearing large current and rapidly radiating heat. Can meet the demand of 10000A and above of rated current of high-capacity switch equipment of a pumped storage power station.
Description
Technical Field
The invention belongs to the technical field of high-voltage electrical appliances, and relates to a multifunctional composite shell device and a use method thereof.
Background
At present, a traditional switch equipment shell is generally only used as a pressure-bearing member for supporting and installing electrical equipment, can provide a specified protection level, is not directly connected with an insulating part, is not used as a main conductive loop part, is not provided with corresponding systems such as a moving main contact, a static main contact, a moving arc contact, a static arc contact and the like, is connected with the outside, is generally connected by adopting a wire outlet sleeve or a cable terminal, and does not have a corresponding airflow channel, namely a main channel and an auxiliary channel in the shell; therefore, the shell and the arc extinguishing chamber of the conventional switch equipment are separately designed, the structure is relatively simple, the function is single, and the compound integration level is low.
Disclosure of Invention
The invention aims to solve the technical problems of simple structure, single function and low composite integration of a conventional switch device shell in the prior art, and provides a multifunctional composite shell device and a use method thereof.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
in a first aspect, the present invention provides a multi-functional composite housing arrangement comprising a housing; the shell is of a hollow cylinder structure, one end of the shell is of an upper side structure, and the other end of the shell is of a lower side structure; two outgoing terminals are tangentially arranged on the side wall of the shell close to the upper structure along the circumference; the lower side structure is in an unequal stepped shape and comprises a first step, a second step and a third step which are concentrically arranged from the outside to the inside of the circumference; the inner part of the shell is used for connecting a static arc contact system; a gap is reserved between the third step and the static arc contact system and is used as a first channel for air flow to pass through.
Further, the wire outlet terminal is provided with a plurality of U-shaped holes which are of a straight tooth structure, and the shell is manufactured by machining after integral casting.
Further, the end face of the first step is provided with a plurality of strip-shaped holes along the circumferential direction at the position close to the second step, and the strip-shaped holes serve as a second channel for air flow to pass through.
Further, the corners of the strip-shaped holes are fillets, and the edges of the strip-shaped holes are fillets.
Further, the side wall of the shell is provided with a plurality of cooling fins.
Further, the upper structure is connected with a flange; the flange is provided with an inflation inlet; the inside of the flange is provided with an adsorbent, and the outside is provided with an explosion-proof membrane.
Further, the end face of the first step is connected with the insulating cylinder through a sealing structure and separated from the movable part to form fracture insulation.
Further, the second step is provided with a plurality of hole sites along the circumferential tangential direction for fixing a shielding cover in the static main contact system.
Further, the end face of the shielding cover is of an arc structure.
In a second aspect, the present invention provides a method for using the multifunctional composite shell device, comprising the following steps:
when the movable part is switched off or on, high-pressure hot gas generated in the cylinder is discharged through the first channel; when the movable part continues to be opened or closed, part of high-pressure hot gas is discharged through the second channel;
when in closing, the movable component is connected with the shell through the fixed main contact and bears the action of large current; when the switch is opened, after the upper side structure of the shell is connected with the flange, the first step is connected with the insulating cylinder and then separated from the movable side element of the switch equipment, so that fracture insulation is formed; insulating gas is filled in the shell, namely, the shell is used as a pressure-bearing member for bearing current, and the protection function is achieved.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses a multifunctional composite shell device and a use method thereof. The inner part of the shell is communicated with the lower part of the third ladder and is used as a first channel of gas exchange, namely a main channel, and the main channel is used for carrying out a main flow path of an airflow field in the heavy current breaking process; the whole structure is simple and compact, the miniaturization and the complete function are realized, the composite integration level is high, and the requirements of miniaturization and large capacity of the switch equipment are met.
Furthermore, the U-shaped holes are arranged on the wire outlet terminal, so that the heat dissipation area is increased, the heat conduction and transfer are facilitated, the heat dissipation is faster, and the requirement of high current 10000A can be met. The invention is manufactured by machining after integral casting, and can be used as a main conductive loop part after being matched with other parts.
Further, the strip-shaped hole at the second step can be used as a second channel for air flow exchange, namely an auxiliary channel, and is mainly used for an auxiliary path for the overhigh fracture pressure and the integral communication of a large current carrying test and a static side air chamber in the large current breaking process, so that the condition that the high fracture pressure and the hot air flow gather in the fracture insulating cylinder to exchange with the air in the shell in the large current breaking process is prevented, the breaking capacity and the current carrying capacity of the switch equipment can be effectively improved, the air exchange between the shell and the fracture is smoother, and the safe and reliable operation of the switch equipment is ensured.
Furthermore, the strip-shaped holes are provided with the fillets, so that the air flow is smoother, and the uniformity of an electric field is facilitated.
Furthermore, the heat radiating fins are arranged, so that the heat radiating surface area of the shell can be further increased, the heat radiating efficiency of the shell is improved, the current carrying capacity is larger and stronger, and the requirement of the pumped storage switch equipment for larger current carrying capacity is met.
Further, the shielding cover assembled by the second step plays a role in protecting the static main contact at the third step, and is simultaneously used for shielding the fracture, so that the fracture electric field is more uniform, a main loop structure is formed with the movable end system, and the shielding cover is directly connected with the shell to play a role in bearing large current.
Further, after the upper side structure of the shell is connected with the flange, the first step is connected with the insulating cylinder and then separated from the movable side element of the switch equipment, so that fracture insulation is formed, insulating gas is filled in the fracture insulation, and the fracture insulation is used as a pressure-bearing member to serve as the shell, so that the protection function is realized.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of the device of the present invention;
FIG. 2 is a cross-sectional view taken along the A-A direction of the apparatus of the present invention;
FIG. 3 is a top view of the device of the present invention;
FIG. 4 is a B-B cross-sectional view of the device of the present invention;
FIG. 5 is an assembly schematic of the closing process of the present invention;
FIG. 6 is an assembly schematic of the brake release process of the present invention.
Wherein: 1-a housing; 2-an outgoing line terminal; 3-U-shaped holes; 4-static arc contact assembly position; 5-a third step; 6-a second step; 6-1-second stepped end faces; 7-underside structure; 8-a first step; 8-1-a first stepped end face; 9-upper side structure; 10-a first channel; 11-a second channel; 12-cooling fins; 13-bar-shaped holes; 13-1-a first rounded corner; 13-2-second rounded corners; 14-a flange; 14-1-charging port; 14-2-explosion-proof film; 14-3-adsorbent; 15-inside the housing; 16-a stationary main contact; 17-a fixed main contact shield; 17-1-a shield arc structure; 18-an insulating cylinder; 19-a movable member; 20-static arcing contact system; 21-a first gas exchange direction; 22-second gas exchange direction.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper," "lower," "horizontal," "inner," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which Xi Guanchang is put when the inventive product is used, it is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the term "horizontal" if present does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 can be understood by those of ordinary skill in the art according to the specific circumstances.
The invention is described in further detail below with reference to the attached drawing figures:
referring to fig. 1 and 2, an embodiment of the present invention provides a multifunctional composite housing device, including a housing 1; the shell 1 is of a hollow cylinder structure, one end of the shell 1 is of an upper side structure 9, and the other end of the shell is of a lower side structure 7; two outgoing terminals 2 are tangentially arranged on the side wall of the shell 1 near the upper structure 9 along the circumference; the lower side structure 7 is in a ladder shape and comprises a first ladder 8, a second ladder 6 and a third ladder 5 which are concentrically arranged from the outside to the inside of the circumference; the interior of the housing 1 is used to connect a static arcing contact system 20; a gap is left between the third step 5 and the static arcing contact system 20 as a first channel 10 for the air flow to pass through. The outlet terminal 2 can be connected to an external overhead busbar and other switchgear. The inner part of the shell is communicated with the lower part of the third step 5 and is used as a first channel 10, namely a main channel, for gas exchange, and is used for carrying out a main flow path of an airflow field in the heavy current switching-on and switching-off process; the whole structure is simple and compact, the miniaturization and the complete function are realized, the composite integration level is high, and the requirements of miniaturization and large capacity of the switch equipment are met.
Referring to fig. 3, in this embodiment, the outlet terminals 2 are uniformly arranged along the circumferential tangential direction, have a quadrilateral structure, and are provided with a plurality of U-shaped holes 3, the overall shape is a straight tooth structure, and the housing 1 is manufactured by machining after integral casting. The U-shaped holes 3 increase the heat radiating area, are favorable for heat conduction and transmission, and can radiate heat faster and meet the requirement of high current 10000A. And the shell 1 is manufactured by machining after integral casting, and can bear pressure and serve as a main conductive loop part.
Referring to fig. 4, in the present embodiment, the end face of the first step 8 is provided with a plurality of strip-shaped holes 13 uniformly arranged in the circumferential direction near the second step 6 as a second passage 11 for the passage of the air flow. The auxiliary channel is mainly used for an auxiliary path for the ultrahigh fracture pressure and the integral communication of the high current carrying test and the static side air chamber in the high current breaking process, so that the hot air flows are prevented from being gathered in the fracture insulating cylinder to exchange with the air in the shell when the high current is carried and the fracture pressure is overhigh in the high current breaking process, the breaking capacity and the current carrying capacity of the switch equipment can be effectively improved, the gas exchange between the shell and the fracture is smoother, and the safe and reliable operation of the switch equipment is ensured.
In this embodiment, the corners of the strip-shaped holes 13 are rounded, the edges of the strip-shaped holes 13 are rounded, and the overall structure is arc-shaped. Referring to fig. 3, the side wall of the housing 1 is provided with a plurality of heat radiating fins 12. The heat dissipation surface area of the shell can be further increased, the heat dissipation efficiency of the shell is improved, the current carrying capacity is larger and stronger, and the requirement of the pumped storage switch equipment for larger current carrying capacity is met.
Referring to fig. 5, in this embodiment, the upper structure 9 is connected to a flange 14; the flange 14 is provided with an inflation inlet 14-1; the inside of the flange 14 is provided with an adsorbent 14-3, and the outside is provided with an explosion-proof membrane 14-2. The end face of the first step 8 is connected with an insulating cylinder 18 through a sealing structure and separated from a movable part 19 to form fracture insulation.
In this embodiment, the second step 6 is provided with a plurality of holes circumferentially and tangentially for fixing the shielding cover 17 in the system of the stationary main contact 16. The end face of the shielding cover 17 is of an arc structure. The third step 5 is used for installing a static main contact structure; the shielding cover 17 assembled by the second step 6 is used for protecting the static main contact 16 assembled at the third step 5, and is also used for shielding a fracture, so that the fracture electric field is more uniform, a main loop structure is formed with a moving end system, and the static main contact 16 is directly connected with the shell 1 and bears the action of large current.
The embodiment of the invention provides a use method of a multifunctional composite shell device, which comprises the following steps:
when the movable part 19 is opened or closed, high-pressure hot gas generated in the cylinder is discharged through the first passage 10; when the movable member 19 continues to open or close, part of the high-pressure hot gas is discharged through the second passage 11.
When in closing, the movable part 19 is connected with the shell through the fixed main contact 16 and bears the action of large current; when the switch is opened, after the upper structure 9 of the shell is connected with the flange 14, the first step 8 is connected with the insulating cylinder and then separated from the movable side element 19 of the switch equipment, so that fracture insulation is formed; the shell 1 is filled with insulating gas, namely, the bearing current is used as a pressure-bearing member, and the protection function is achieved.
The working principle of the invention is as follows:
the upper structure 9 of the shell 1 is connected with a flange 14; the lower side structure 7 is in stepped distribution, namely a first step 8, a second step 6 and a third step 5, the centers of the three steps and the center of the shell are positioned on the same axis, and compared with the conventional steps, the lower side structure 7 is in unequal structure arrangement; the first step 8 and the second step 6 have larger spans, and the end surface 8-1 of the first step is provided with a corresponding sealing structure, which is connected with an insulating cylinder 18 and separated from a movable part 19 (also called a movable contact system) of the switch equipment to form fracture insulation; the second step 6 is provided with uniformly distributed hole sites tangentially along the circumferential direction and is used for fixing a shielding cover 17 in the static main contact system; the third step 5 is used for installing a fixed main contact 16, the fixed main contact 16 is composed of a plurality of groups of self-operated contacts, the fixed main contact 16 is fixed through a fixed main contact shielding cover 17, the fixed main contact 16 is in direct contact with the circumferential surface of the third step 5 to form a main loop, the fixed main contact 16 bears a large current in an operation state, the fixed main contact 16 is driven to slightly move (considering part machining errors) in the shielding cover 17 during opening and closing operations of the movable part 19, the fixed main contact 16 is limited by an arc structure 17-1 in the end surface of the shielding cover during opening, the arc 17-1 is in a U-shaped structure, and the fixed main contact 16 is in contact with the end surface 6-1 of the second step to limit during closing; the inner part opposite to the third step 5 is used for connecting a static arc contact system 20 (an arc loop is formed when the static arc contact system is closed and opened), wherein a shielding cover 17 assembled by the second step is used for protecting the static main contact 16 at the third step and is also used for shielding a fracture, so that the fracture electric field is more uniform, a main loop structure is formed with a movable end system, and the static arc contact system is directly connected with a shell to bear the action of large current.
As shown in fig. 5, the upper structure 9 is connected with a flange 14, and the flange 14 is provided with an inflation inlet 14-1, an explosion-proof membrane 14-2 and an adsorbent 14-3; the lower structure 7 is connected with the insulating cylinder 18, the assembled switchgear forms a pressure-bearing space in the shell 15, and the inner inflatable body is used as insulating, arc-extinguishing and heat-dissipating medium to play a role in protection.
After the assembly with other components is completed, the inner parts of the upper and lower side structures (namely, the lower part of the third step 5) in the shell 1 are communicated, and the first channel 10 serving as a gas exchange direction 21, namely, a main channel, is used for carrying out a main flow path of an airflow field in the process of switching off a large current; 4 strip-shaped holes 13 which are uniformly distributed along the circumferential direction are arranged between the first step 8 and the second step 6, namely, on the first step end surface 8-1, and a second channel 11 which is taken as a gas flow exchange direction 22 (the first gas exchange direction 21 and the second gas exchange direction 22 shown in fig. 6 represent the approximate flow direction of gas), namely, auxiliary channels, and the first channel 10 and the second channel 11 are arranged concentrically with the shell 1; when the movable part 19 is opened, the generated high-pressure hot gas in the cylinder flows out rapidly from the first channel 10, and as 4 uniformly arranged strip-shaped holes 13 are arranged on the first step end face 8-1, another channel is provided for the high-pressure hot gas when the movable part 19 continues to be opened, namely, a part of the high-pressure hot gas flows out through the second channel 11, so that the situation that the fracture pressure is too high to gather in the fracture insulation cylinder 18 in the heavy current breaking process is prevented, the gas is exchanged with the gas in the shell 15 rapidly, and the breaking capacity of the switch equipment can be effectively improved; when the operation state is closed (as shown in fig. 5), that is, when the main circuit carries a large current, the movable component 19 contacts with the fixed main contact 16, and the gas exchange between the inside 15 of the shell and the fracture is smoother due to the existence of the first channel 10 and the second channel 11, in summary, due to the arrangement of the corresponding gas flow auxiliary channels outside the main channel, the safe and reliable operation of the switch device can be ensured no matter the short circuit is opened or the operation state is realized.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A multifunctional composite shell device, which is characterized by comprising a shell (1); the shell (1) is of a hollow cylinder structure, one end of the shell (1) is of an upper side structure (9), and the other end of the shell is of a lower side structure (7); two outgoing terminals (2) are tangentially arranged on the side wall of the shell (1) close to the upper side structure (9) along the circumference; the lower side structure (7) is in an unequal stepped shape and comprises a first step (8), a second step (6) and a third step (5) which are concentrically arranged from the outside to the inside of the circumference; the interior of the housing (1) is used for connecting a static arc contact system (20); a gap is reserved between the third step (5) and the static arc contact system (20) and is used as a first channel (10) for air flow to pass through.
2. The multifunctional composite shell device according to claim 1, wherein the wire outlet terminal (2) is provided with a plurality of U-shaped holes (3) which are in a straight tooth structure, and the shell (1) is manufactured by machining after integral casting.
3. A multifunctional composite shell device according to claim 1, characterized in that the end face of the first step (8) is provided with a number of strip-shaped holes (13) in circumferential direction near the second step (6) as second channels (11) for the passage of air flow.
4. A multifunctional composite shell device according to claim 3, characterized in that the corners of the strip-shaped holes (13) are rounded and the edges of the strip-shaped holes (13) are rounded.
5. A multifunctional composite shell device according to claim 1 or 4, characterized in that the shell (1) side wall is provided with several cooling fins (12).
6. A multifunctional composite shell device according to claim 5, characterized in that the upper structure (9) is connected with a flange (14); an inflation inlet (14-1) is formed in the flange (14); the inner side of the flange (14) is provided with an adsorbent (14-3), and the outer side is provided with an explosion-proof membrane (14-2).
7. A multifunctional composite shell device according to claim 6, characterized in that the end face of the first step (8) is connected to an insulating cylinder (18) by a sealing structure, separated from the movable part (19), forming a fracture insulation.
8. A multifunctional composite housing device according to claim 7, characterized in that the second step (6) is provided with holes tangentially along the circumference for fixing a shield (17) in a stationary main contact (16) system.
9. A multifunctional composite shell device according to claim 8, characterized in that the end face of the shielding cover (17) is of a circular arc structure.
10. A method of using the multifunctional composite shell device of any one of claims 1-9, comprising the steps of:
when the movable part (19) is switched off or on, high-pressure hot gas generated in the cylinder is discharged through the first channel (10); when the movable part (19) continues to open or close, part of high-pressure hot gas is discharged through the second channel (11);
when in closing, the movable component (19) is connected with the shell through the fixed main contact (16) and bears the action of large current; when the switch is opened, after the upper side structure (9) of the shell is connected with the flange (14), the first step (8) is connected with the insulating cylinder and then separated from the movable side element (19) of the switch equipment, so that fracture insulation is formed; the shell (1) is filled with insulating gas, namely, the shell is used as a pressure-bearing member for bearing current, and plays a role in protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311091306.8A CN117153613A (en) | 2023-08-28 | 2023-08-28 | Multifunctional composite shell device and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311091306.8A CN117153613A (en) | 2023-08-28 | 2023-08-28 | Multifunctional composite shell device and use method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117153613A true CN117153613A (en) | 2023-12-01 |
Family
ID=88903764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311091306.8A Pending CN117153613A (en) | 2023-08-28 | 2023-08-28 | Multifunctional composite shell device and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117153613A (en) |
-
2023
- 2023-08-28 CN CN202311091306.8A patent/CN117153613A/en active Pending
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