CN215071321U - Environment-friendly gas insulated switchgear - Google Patents
Environment-friendly gas insulated switchgear Download PDFInfo
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- CN215071321U CN215071321U CN202121299111.9U CN202121299111U CN215071321U CN 215071321 U CN215071321 U CN 215071321U CN 202121299111 U CN202121299111 U CN 202121299111U CN 215071321 U CN215071321 U CN 215071321U
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Abstract
The utility model relates to an environment-friendly gas insulated switchgear, which is characterized in that the utility model comprises a box body, a line outgoing sleeve device, a first operating mechanism, a second operating mechanism, an insulating cylinder, a vacuum arc extinguish chamber, a positioning mechanism, an isolating switch and a three-phase main bus sleeve; the bottom of the inner side of the box body is provided with a wire outlet sleeve device, the wire outlet sleeve device is connected with a non-action end of the vacuum arc-extinguishing chamber through a first conductive piece, the vacuum arc-extinguishing chamber is arranged in the insulating cylinder, and the action end of the vacuum arc-extinguishing chamber is connected with a first operating mechanism through a positioning mechanism; the upper part of the positioning mechanism is connected with the isolating switch through a second conductive piece; corresponding to the position of the isolating switch, a second operating mechanism is arranged on the outer side of the box body, and an isolating grounding support seat and an isolating high-voltage support seat are arranged on two sides in the box body; keep apart the bottom of high-pressure supporting seat and connect an insulating cylinder, keep apart the top of high-pressure supporting seat and connect fixed the setting and be in the three-phase main bus bar sleeve pipe at box top, the utility model discloses can extensively be used for in the ocean oil and gas field development field.
Description
Technical Field
The utility model relates to an environmental protection gas insulation switchgear belongs to marine oil gas field development field.
Background
The environment-friendly gas-insulated metal-enclosed switchgear in the prior art combines gas sealing, electric field simulation analysis and traditional metal-enclosed switchgear, arranges high-voltage components in a closed container, fills with insulating gas with lower pressure, and utilizes modern processing technology and advanced manufacturing method to produce and manufacture a complete set of serial products with large break, excellent performance, safety and stability, compact structure and small occupied space, thereby being capable of replacing the existing indoor fixed alternating current metal switchgear and vacuum switchgear with air insulation as the main part of an offshore drilling production platform. In addition, the method can also be applied to an inlet wire cabinet of a power plant, a bus coupler cabinet, an inlet wire cabinet of a generator and the like.
However, the big disconnected type switchgear of traditional large capacity generally adopts the mode of air insulation more, for solving the equipment temperature rise problem, adopts the mode such as increase equipment volume more, install the fan additional and increase circulation of air, however, offshore platform is suitable for the small dish cabinet of area, and simultaneously, the fan occupies cabinet body space increase cabinet body volume and only improves equipment ambient temperature effect, and is not good to the enclosure space effect.
Disclosure of Invention
In view of the above problems, it is an object of the present invention to provide a high capacity, large break, environmentally friendly gas insulated switchgear.
In order to achieve the purpose, the utility model adopts the following technical proposal: an environment-friendly gas-insulated switchgear comprises a box body, a wire outlet sleeve device, a first operating mechanism, a second operating mechanism, an insulating cylinder, a vacuum arc-extinguishing chamber, a positioning mechanism, an isolating switch and a three-phase main bus sleeve, wherein an insulating medium is filled in the box body;
the bottom of the inner side of the box body is provided with the outgoing line sleeve device for splicing cables, the outgoing line sleeve device is connected with the non-action end of the vacuum arc-extinguishing chamber through a first conductive piece, the vacuum arc-extinguishing chamber is arranged in the insulating cylinder, the action end of the vacuum arc-extinguishing chamber is connected with the first operating mechanism through the positioning mechanism, and the first operating mechanism is used for driving the vacuum arc-extinguishing chamber to perform opening and closing actions of a main loop through the positioning mechanism;
the upper part of the positioning mechanism is connected with the isolating switch through a second conductive piece; the second operating mechanism is arranged on the outer side of the box body corresponding to the position of the isolating switch, an isolating grounding support seat and an isolating high-voltage support seat are arranged on two sides in the box body, and the second operating mechanism is used for driving the isolating switch to move to contact with or leave the isolating grounding support seat or the isolating high-voltage support seat so as to carry out grounding action, isolating brake-off action or isolating switch-on action;
the bottom of the isolation high-voltage supporting seat is connected with the insulating cylinder, and the top of the isolation high-voltage supporting seat is fixedly connected with the three-phase main bus sleeve arranged at the top of the box body.
Preferably, the positioning mechanism comprises a corrugated pipe, an insulating pull rod and a conductive sliding block;
corresponding to the position of first operating mechanism, be provided with on the inner wall of box the bellows, the one end fixed connection of bellows the output of first operating mechanism, the other end fixed connection of bellows the one end of insulating pull rod, the other end bolt of insulating pull rod connects the one end of electrically conductive slider, the other end fixed connection of electrically conductive slider the action end of vacuum interrupter, the bellows is used for compressing or extends the action and drives insulating pull rod action, and then passes through electrically conductive slider drives opening or closing of vacuum interrupter.
Preferably, the bottom of the conductive sliding block is provided with a multi-curved-surface aluminum heat dissipation device.
Preferably, the isolating switch comprises a guide sleeve, a conductive rod and a screw rod;
the bottom of the guide sleeve is fixedly connected with the second conductive piece, and the upper part of the guide sleeve is provided with a channel for sleeving and fixing the conductive rod; one end of the conducting rod is fixedly connected with one end of the screw rod, the other end of the screw rod penetrates through the isolation grounding support seat to be connected with the output end of the second operating mechanism, and the second operating mechanism is used for driving the screw rod to rotate so as to drive the conducting rod to perform linear action and complete grounding action, isolation switching-off action or isolation switching-on action.
Preferably, a watchband contact finger is arranged at the rectangular section groove.
Preferably, the outgoing line sleeve device comprises two rows of outgoing line sleeves which are arranged in a staggered mode, each row comprises three outgoing line sleeves, and each outgoing line sleeve is inserted with two cables.
Preferably, a current transformer is further arranged in the box body, the outgoing line sleeve device is connected with the lower portion of the current transformer through a connecting piece, and the upper portion of the current transformer is connected with the non-action end of the vacuum arc extinguish chamber through the connecting piece and the first conductive piece.
Preferably, a condensing means for increasing air circulation in the case is provided at a front side of the case.
Preferably, the top of the box body is provided with an explosion-proof window.
Preferably, the insulation cylinder adopts a cylindrical structure, the outer side of the insulation cylinder is of an umbrella-shaped structure, and the middle section of the bottom of the insulation cylinder is of a hollow structure.
The utility model discloses owing to take above technical scheme, it has following advantage:
1. the utility model discloses owing to be provided with the bushing apparatus that goes out, adopt many undercurrent outer taper sleeve pipes to be qualified for the next round of competitions, can satisfy the requirement that offshore platform does not use the heavy-calibre cable to reduce the installation maintenance degree of difficulty.
2. The utility model discloses owing to be provided with vacuum interrupter, and vacuum interrupter's the outside parcel insulating cylinder and use this as insulating support, can reduce equipment electrical distance.
3. The utility model discloses an be provided with heat abstractor in the insulating cylinder, the appearance of insulating cylinder sets up to the umbelliform structure of many curved surfaces, can increase heat radiating area.
4. The utility model discloses the plug department that well second is electrically conductive adopts the bi-component to twist reverse the blade and touches and indicate, and this kind of watchband touches and indicates to have invariable current-carrying capacity and minimum contact resistance, and the fluting is with low costs, the quantity is few, calorific capacity is low, can realize high power density's compact design.
5. The utility model discloses owing to be provided with the isolator who adopts three stations of cylindrical direct action formula, compare traditional switch formula gas insulated switchgear, have occupation space little, the action is reliable, the electric field is even, be difficult for forming having some of tip effect or edge effect, and can reduce the danger coefficient of surrounding environment, can wide application in ocean oil and gas field development field.
Drawings
Fig. 1 is a schematic structural diagram of an environmentally-friendly gas insulated switchgear according to an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a schematic structural view of an insulating cylinder in an environment-friendly gas insulated switchgear according to an embodiment of the present invention, wherein fig. 3(a) is a schematic view of a hollow-out structure in the bottom middle section of the insulating cylinder, and fig. 3(b) is a schematic view of an aluminum heat dissipation structure with multiple curved surfaces in the outer side of the insulating cylinder.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "upper", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
The utility model discloses environmental protection gas insulation switchgear can solve rated current for 3150A, rated short circuit break-make current for 40kA 4S, rated short circuit shut-in current for 100kA, be used for the high cabinet type of marine oil gas field development engineering' S protection level, be adapted to moist adverse circumstances, can effectively reduce the temperature rise of equipment.
As shown in fig. 1 and fig. 2, the utility model provides an environmental protection gas insulated switchgear includes box 1, leading-out bushing device 2, current transformer 3, first operating mechanism 4, second operating mechanism 5, insulating cylinder 6, vacuum interrupter 7, first electrically conductive 8, the electrically conductive 9 of second, positioning mechanism 10, isolator 11 and three-phase main bus bar sleeve 12, wherein, the intussuseption of box 1 is filled with insulating medium, and insulating medium uses the pressure-fired environmental protection gas as owner, and arc extinguishing medium is vacuum arc extinguishing.
The bottom of the inner side of the box body 1 is provided with a wire outgoing sleeve device 2 used for plugging a cable, the wire outgoing sleeve device 2 is connected with the lower part of a current transformer 3 through a first copper bar 13, the current transformer 3 is used for converting large current in an alternating current circuit into small current in a certain proportion for measurement and relay protection, and the upper part of the current transformer 3 is connected with one end of a second copper bar 14.
The middle part of the outer side of the box body 1 is provided with a first operating mechanism 4, the middle part of the inner side of the box body 1 is provided with an insulating cylinder 6, a vacuum arc extinguish chamber 7 is arranged in the insulating cylinder 6, the non-action end of the vacuum arc extinguish chamber 7 is connected with the other end of the second copper bar 14 through a first conductive piece 8, the action end of the vacuum arc extinguish chamber 7 is connected with the first operating mechanism 4 through a positioning mechanism 10, the first operating mechanism 4 is used for driving the vacuum arc extinguish chamber 7 to perform opening and closing actions of a main loop through the positioning mechanism 10 so as to achieve opening and closing of the main loop, wherein the main loop is a loop which is closed when the action end of the vacuum arc extinguish chamber 7 is closed and closed when an isolating switch 11 is switched on (namely when a conducting rod 11-2 which is described below is connected with an isolating high-voltage supporting seat 1-2) and current flows when the current is switched on.
The upper part of the positioning mechanism 10 is connected with the isolating switch 11 through the second conductive piece 9 by a flexible connecting mechanism 15. Corresponding to the position of the isolating switch 11, the upper part of the outer side of the box body 1 is provided with a second operating mechanism 5, two sides of the upper part of the inner side of the box body 1 are provided with an isolating grounding support seat 1-1 and an isolating high-voltage support seat 1-2, and the second operating mechanism 5 is used for driving the isolating switch 11 to contact or leave the isolating grounding support seat 1-1 or the isolating high-voltage support seat 1-2 to perform grounding action, isolating brake-separating action or isolating switch-on action. The bottom of the isolation high-voltage support seat 1-2 is connected with the insulating cylinder 6 through an insulating part 16, the top of the isolation high-voltage support seat 1-2 is connected with a three-phase main bus sleeve 12 through a third copper bar 17 and a fourth copper bar 18 which are arranged in parallel, and the three-phase main bus sleeve 12 is fixedly arranged at the top of the box body 1.
In a preferred embodiment, the tank 1 is made of welded sheet metal.
In a preferred embodiment, the front side of the cabinet 1 is provided with a condensing unit 1-3 for increasing the circulation of air in the cabinet 1 and reducing the temperature rise of the equipment.
In a preferred embodiment, as shown in fig. 3, the top of the box body 1 is provided with an explosion-proof window 1-4 for releasing pressure when an accident occurs inside the box body 1, so as to avoid the accident and increase the safety and reliability.
In a preferred embodiment, the outgoing line sleeve device 2 comprises two rows of outgoing line sleeves 2-1 arranged in a staggered mode, each row comprises three outgoing line sleeves 2-1, each outgoing line sleeve 2-1 is inserted with two cables 2-2, namely each row is provided with six cables 2-2, so that the current of a single outgoing line cable is reduced, and the installation difficulty is reduced. The outlet sleeve device 2 can adopt a stepped structure to reduce the volume.
In a preferred embodiment, as shown in fig. 3, the insulating cylinder 6 may have a cylindrical structure, the outer side of the insulating cylinder 6 has an umbrella-shaped structure, and the middle bottom section of the insulating cylinder 6 has a hollow structure to increase heat dissipation.
In a preferred embodiment, the positioning mechanism 10 includes a bellows 10-1, an insulated pull rod 10-2, and a conductive slider 10-3. The inner wall of the box body 1 is provided with a corrugated pipe 10-1 corresponding to the position of the first operating mechanism 4, one end of the corrugated pipe 10-1 is fixedly connected with the output end of the first operating mechanism 4, the other end of the corrugated pipe 10-1 is fixedly connected with one end of an insulating pull rod 10-2, the other end of the insulating pull rod 10-2 is bolted with one end of a conductive slide block 10-3, the other end of the conductive slide block 10-3 is fixedly connected with the action end of the vacuum arc extinguish chamber 7, and the corrugated pipe 10-1 is used for performing compression or extension action to drive the insulating pull rod 10-2 to act, so that the vacuum arc extinguish chamber 7 is driven to be opened or closed through the conductive slide block 10-3.
In a preferred embodiment, as shown in FIG. 3, the bottom of the conductive slider 10-3 is provided with a multi-curved aluminum heat sink 10-4.
In a preferred embodiment, the isolating switch 11 includes a guide sleeve 11-1, a conductive rod 11-2 and a lead screw 11-3. The bottom of the guide sleeve 11-1 is fixedly connected with a second conductive piece 9 and is positioned at the plugging position of the second conductive piece 9, a rectangular section groove is formed in the guide sleeve 11-1, and a double-component torsion blade contact finger is arranged at the rectangular section groove. The upper part of the guide sleeve 11-1 is provided with a channel for sleeving and fixing the conducting rod 11-2, one end of the conducting rod 11-2 is fixedly connected with one end of the screw rod 11-3, the other end of the screw rod 11-3 penetrates through the isolation grounding support seat 1-1 to be connected with the output end of the second operating mechanism 5, and the second operating mechanism 5 is used for driving the screw rod 11-3 to rotate so as to drive the conducting rod 11-2 to move left and right to complete grounding action, isolation brake opening action or isolation switch closing action.
In a preferred embodiment, the three-phase main bus bar casings 12 are arranged in parallel, spaced and staggered on top of the box 1.
The utility model discloses the use of environmental protection gas insulated switchgear is explained in detail through specific embodiment below:
1) the first operating mechanism 4 acts to drive the corrugated pipe 10-1 to compress, the action of the corrugated pipe 10-1 drives the insulating pull rod 10-2, and further drives the action end of the vacuum arc-extinguishing chamber 7 to act through the conductive sliding block 10-3, so that the opening and closing are realized.
2) The second operating mechanism 5 acts to drive the screw rod 11-3 to rotate, so as to drive the conducting rod 11-2 to move linearly left and right, and when the conducting rod 11-2 moves to be in contact with the isolated grounding support seat 1-1, the state is a grounding state; when the conducting rod 11-2 is positioned between the isolated grounding support seat 1-1 and the isolated high-voltage support seat 1-2, the isolated grounding support seat is in an isolated state; when the conductive rod 11-2 moves to contact with the isolated high-voltage support seat 1-2, the isolated state is achieved.
Above-mentioned each embodiment only is used for explaining the utility model discloses, wherein structure, connected mode and the preparation technology etc. of each part all can change to some extent, all are in the utility model discloses equal transform and improvement of going on technical scheme's the basis all should not exclude outside the protection scope of the utility model.
Claims (10)
1. The environment-friendly gas-insulated switchgear is characterized by comprising a box body, a wire outlet sleeve device, a first operating mechanism, a second operating mechanism, an insulating cylinder, a vacuum arc-extinguishing chamber, a positioning mechanism, an isolating switch and a three-phase main bus sleeve, wherein an insulating medium is filled in the box body;
the bottom of the inner side of the box body is provided with the outgoing line sleeve device for splicing cables, the outgoing line sleeve device is connected with the non-action end of the vacuum arc-extinguishing chamber through a first conductive piece, the vacuum arc-extinguishing chamber is arranged in the insulating cylinder, the action end of the vacuum arc-extinguishing chamber is connected with the first operating mechanism through the positioning mechanism, and the first operating mechanism is used for driving the vacuum arc-extinguishing chamber to perform opening and closing actions of a main loop through the positioning mechanism;
the upper part of the positioning mechanism is connected with the isolating switch through a second conductive piece; the second operating mechanism is arranged on the outer side of the box body corresponding to the position of the isolating switch, an isolating grounding support seat and an isolating high-voltage support seat are arranged on two sides in the box body, and the second operating mechanism is used for driving the isolating switch to move to contact with or leave the isolating grounding support seat or the isolating high-voltage support seat so as to carry out grounding action, isolating brake-off action or isolating switch-on action;
the bottom of the isolation high-voltage supporting seat is connected with the insulating cylinder, and the top of the isolation high-voltage supporting seat is fixedly connected with the three-phase main bus sleeve arranged at the top of the box body.
2. The environmentally friendly gas insulated switchgear of claim 1, wherein the positioning mechanism comprises a bellows, an insulating pull rod, and a conductive slider;
corresponding to the position of first operating mechanism, be provided with on the inner wall of box the bellows, the one end fixed connection of bellows the output of first operating mechanism, the other end fixed connection of bellows the one end of insulating pull rod, the other end bolt of insulating pull rod connects the one end of electrically conductive slider, the other end fixed connection of electrically conductive slider the action end of vacuum interrupter, the bellows is used for compressing or extends the action and drives insulating pull rod action, and then passes through electrically conductive slider drives opening or closing of vacuum interrupter.
3. The environmentally friendly gas insulated switchgear of claim 2, wherein the bottom of the conductive slider is provided with a multi-curved aluminum heat sink.
4. The environmentally friendly gas insulated switchgear of claim 1, wherein the disconnector comprises a guide sleeve, a conductive rod and a lead screw;
the bottom of the guide sleeve is fixedly connected with the second conductive piece, and the upper part of the guide sleeve is provided with a channel for sleeving and fixing the conductive rod; one end of the conducting rod is fixedly connected with one end of the screw rod, the other end of the screw rod penetrates through the isolation grounding support seat to be connected with the output end of the second operating mechanism, and the second operating mechanism is used for driving the screw rod to rotate so as to drive the conducting rod to perform linear action and complete grounding action, isolation switching-off action or isolation switching-on action.
5. The environment-friendly gas insulated switchgear according to claim 4, wherein the guide sleeve is provided with a groove with a rectangular cross section, and a strap contact finger is arranged at the groove with the rectangular cross section.
6. The environmentally friendly gas insulated switchgear of claim 1, wherein the outlet bushing arrangement comprises two staggered rows of outlet bushings, each row comprising three outlet bushings, each outlet bushing having two cables plugged therein.
7. The environment-friendly gas-insulated switchgear according to claim 1, wherein a current transformer is further disposed in the box, the outgoing line bushing apparatus is connected to a lower portion of the current transformer through a connecting member, and an upper portion of the current transformer is connected to the non-operating end of the vacuum interrupter through the first conductive member through the connecting member.
8. The environmentally friendly gas insulated switchgear device of any one of claims 1 to 7, wherein a front side of the cabinet is provided with a condensing means for increasing air circulation in the cabinet.
9. The environmentally friendly gas insulated switchgear of any one of claims 1 to 7, wherein the top of the cabinet is provided with an explosion proof window.
10. The environment-friendly gas-insulated switchgear according to any one of claims 1 to 7, wherein the insulating cylinder has a cylindrical structure, the outer side of the insulating cylinder has an umbrella-shaped structure, and the middle bottom section of the insulating cylinder has a hollow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121299111.9U CN215071321U (en) | 2021-06-08 | 2021-06-08 | Environment-friendly gas insulated switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121299111.9U CN215071321U (en) | 2021-06-08 | 2021-06-08 | Environment-friendly gas insulated switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215071321U true CN215071321U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121299111.9U Active CN215071321U (en) | 2021-06-08 | 2021-06-08 | Environment-friendly gas insulated switchgear |
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| Country | Link |
|---|---|
| CN (1) | CN215071321U (en) |
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2021
- 2021-06-08 CN CN202121299111.9U patent/CN215071321U/en active Active
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