CN216904022U - High-pressure gas-filled cabinet for offshore wind power - Google Patents
High-pressure gas-filled cabinet for offshore wind power Download PDFInfo
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- CN216904022U CN216904022U CN202220217392.7U CN202220217392U CN216904022U CN 216904022 U CN216904022 U CN 216904022U CN 202220217392 U CN202220217392 U CN 202220217392U CN 216904022 U CN216904022 U CN 216904022U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a high-pressure inflatable cabinet for offshore wind power, which solves the problem that the transportation and assembly processes are complicated because the number of inflatable cabinets needs to be increased if the existing inflatable cabinet needs to meet higher voltage and the power supply requirements of more equipment, and comprises a main cabinet; the main cabinet is filled with SF6 gas; three groups of first three-station switches, three breaker solid-sealed polar columns, three groups of first bus bars and three groups of second three-station switches are arranged in the main cabinet from top to bottom, and all the devices are electrically connected by adopting connecting conductors; the side wall of the main cabinet is provided with three first in-out sleeves connected with the three groups of first three-position switches and three second in-out sleeves connected with the three groups of second three-position switches, and the inflatable cabinet can be connected with a plurality of cabinets in parallel through a connector.
Description
Technical Field
The utility model relates to the field of electric power, in particular to a high-pressure gas-filled cabinet for offshore wind power.
Background
In the face of common problems of human beings such as energy shortage, environmental pollution, climate change and the like, clean energy has become a main development direction in the industry, at present, an offshore wind power project mainly takes 40.5kV system voltage as a main part, and as the space of the offshore wind power project is limited, in order to reduce the number of fan loops, save the space of an offshore booster station and reduce investment and operation and maintenance costs, offshore wind power is gradually increased from 40.5kV to 72.5kV systems, and 72.5kV gas insulated metal closed switch equipment in a wind tower is more and more widely applied.
However, the existing inflatable cabinet is divided into three parts according to the principle of incoming and outgoing lines, one inflatable cabinet can only be used by one device, and if the requirement of meeting higher voltage and the power supply requirement of more devices is needed, the number of the inflatable cabinets needs to be increased. But may not be possible due to the otherwise compact space that would be occupied by the addition of a single inflatable cabinet.
Moreover, offshore wind power is difficult to maintain and replace due to severe environmental conditions, and the requirements on moisture resistance, corrosion resistance, mold resistance, salt spray resistance and the like of products are very high. Existing conventional inflatable cabinets currently require significant modification and lifting space in this regard. Especially, when the switch cabinet is combined, the internal high-voltage insulation and the external sealing can not meet the long-term operation requirement of the existing offshore environment.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high-pressure inflatable cabinet for offshore wind power, aiming at solving the problem that the number of the inflatable cabinets needs to be increased if the existing inflatable cabinets need to meet higher voltage and the power supply requirements of more equipment, so that the transportation and assembly processes are complicated.
The specific technical scheme of the utility model is as follows:
a high-pressure gas-filled cabinet for offshore wind power comprises a main cabinet;
the main cabinet comprises a main cabinet body, a first three-position switch, a first wire inlet and outlet sleeve, a breaker solid-sealed polar pole, a first connecting conductor, a second connecting conductor, a first busbar, a third connecting conductor, a second three-position switch, a fourth connecting conductor and a second wire inlet and outlet sleeve;
SF6 gas is filled in the main cabinet body;
the first three-position switches are arranged in three groups and are arranged above the inner part of the main cabinet body side by side along the width direction of the main cabinet body;
the number of the first wire inlet and outlet sleeves is three, the first wire inlet and outlet sleeves are arranged on the side wall above the main cabinet body side by side along the width direction of the main cabinet body, and each first wire inlet and outlet sleeve is electrically connected with the conductive static contact of each group of the first three-station switches;
the circuit breaker solid-sealed polar pole is positioned in the main cabinet body and below the first three-position switches, and is respectively and electrically connected with the middle-position support of each group of first three-position switches through three first connecting conductors;
the first busbars are provided with three groups and are arranged in the main cabinet body side by side along the depth direction of the main cabinet body and positioned below the circuit breaker embedded pole; each first busbar is electrically connected with the circuit breaker solid-sealed polar pole through a second connecting conductor;
the second three-position switches are arranged in three groups and are arranged below the inner part of the main cabinet body side by side along the width direction of the main cabinet body; each first busbar is electrically connected with the conductive static contact of each group of second three-station switches through a third connecting conductor;
the middle station support of each group of second three-station switches is electrically connected with a second wire inlet and outlet sleeve through a fourth connecting conductor;
the second business turn over line sleeve pipe is three, and sets up on the lateral wall of the below of the main cabinet body side by side along the width direction of the main cabinet body.
Furthermore, the inflatable cabinet also comprises at least one side cabinet which is arranged on the left side or the right side of the main cabinet body side by side along the width direction of the main cabinet body;
the side cabinet comprises a side cabinet body, a second busbar, a third station switch, a fifth connecting conductor, a sixth connecting conductor and a third wire inlet and outlet sleeve;
SF6 gas is filled in the side cabinet body;
the structure and the number of the second bus bars are the same as those of the first bus bars, the second bus bars are as high as the first bus bars, the three groups of first bus bars and the three groups of second bus bars are in one-to-one correspondence, and the correspondingly arranged first bus bars and the correspondingly arranged second bus bars are electrically connected through connectors, so that the main cabinet is electrically connected with the side cabinet;
the third three-position switches are arranged in three groups and are arranged below the inner part of the side cabinet body side by side along the width direction of the side cabinet body; each second busbar is electrically connected with each group of third station switches through a fifth connecting conductor;
each group of third station switches is electrically connected with a third inlet and outlet bushing through a sixth connecting conductor;
the third business turn over line sleeve pipe is three, and sets up side by side on the lateral wall of the side cabinet body below along the width direction of the side cabinet body.
Further, the connector comprises a side expanding sleeve, an insulating part and a conductive tube;
the two side expanding sleeves are respectively arranged on the side wall of the main cabinet body and the side wall of the side cabinet body;
each lateral expansion sleeve comprises a metal conductive head and an insulating sleeve; the metal conductive head is embedded on the insulating sleeve; one end of the metal conductive head extends out of the insulating sleeve and is used for connecting the first bus bar or the second bus bar, the other end of the metal conductive head is positioned in the insulating sleeve, and the end of the metal conductive head is provided with a first blind hole; a second blind hole is formed in the insulating sleeve, the second blind hole and the first blind hole are coaxial, and the aperture of the second blind hole is larger than that of the first blind hole;
two ends of the conductive tube are respectively inserted into the first blind holes of the two side expansion sleeves; and an insulating part is arranged between the conductive tube and the second blind hole of the insulating sleeve.
Furthermore, two ends of the conductive tube are electrically connected with the metal conductive head through the conductive contact fingers.
Furthermore, the second blind hole is a conical hole, and the whole insulating part is in a frustum shape, so that the insulating part and the insulating sleeve form conical surface matching.
Further, the connector further comprises a sealing and grounding structure, wherein the sealing and grounding structure comprises a sealing ring and an O-shaped metal ring; a sealing ring groove is formed in the end face, far away from the metal conductive head, of the insulating sleeve, and a sealing ring is installed in the sealing ring groove;
the outer surface of the middle area of the insulating part is provided with an O-shaped metal ring, and the O-shaped metal ring is grounded through a lead.
Furthermore, the connector further comprises a positioning pin, a plurality of positioning pin holes are uniformly arranged on the end face of one end, far away from the metal conductive head, of the insulating sleeve along the circumferential direction, and positioning pins are arranged between the plurality of positioning pin holes in the two side expansion sleeves.
Furthermore, the insulating sleeve is provided with a climbing-increasing structure at one end close to the metal conductive head.
Furthermore, the insulating pillars of the first three-position switch, the second three-position switch and the third three-position switch are all provided with climbing-increasing structures.
Further, the insulating part is made by epoxy resin casting or rubber vulcanization process.
Compared with the prior art, the beneficial effects are as follows:
1. the main cabinet body of the utility model carries out the layout again on the electric elements in the cabinet body, compared with the existing 66kV single cabinet which needs to be divided into three parts, the structure is more compact, the occupied area is smaller, and the maintenance and the transportation are more convenient.
2. According to the utility model, a plurality of side cabinets can be simultaneously expanded on one side or two sides of the main cabinet through the connectors, so that one incoming line and a plurality of outgoing lines are realized, and the requirement of simultaneously supplying power to a plurality of devices is met.
3. According to the utility model, the connector for connecting the main cabinet and the side cabinet is formed by the side expansion sleeves, the conductive tube and the insulating part, and the insulating part and the two side expansion sleeves are matched by adopting conical surfaces, so that the assembly is convenient, the sealing performance is good, a discharge channel is prevented from being generated between the insulating part and the side expansion sleeves, and the voltage resistance is greatly improved.
4. The utility model realizes the electric connection between the conductive tube and the first bus bar and the second bus bar through the conductive contact finger, and has the advantages of convenient field installation and reliable conductive performance.
5. In the connector, the insulating sleeves of the two side expansion sleeves are respectively provided with the sealing ring, and the insulating part is provided with the O-shaped metal ring in the middle area (corresponding to the position between the two side expansion sleeves), so that moisture and salt mist are prevented from permeating the conducting tube and the insulating part in the cabinet body through the gap between the two cabinet bodies to cause damage or corrosion of the conducting tube and the insulating part in the cabinet body, the purposes of moisture prevention, corrosion prevention, mould prevention and salt mist prevention of the inflatable cabinet are realized, and the O-shaped metal ring is grounded through a lead to ensure the reliable insulation of the connector.
6. In the connector, one end of the insulating sleeve of the side expansion sleeve is provided with the creepage increasing structure, so that the creepage distance is increased on the premise of not occupying the internal space of the cabinet body, and the gas-filled cabinet can reach the electrical insulation level of high voltage (66 KV).
7. The positioning pin is adopted in the connector to realize positioning, so that the reliability of the two cabinets in parallel connection and the concentricity of the connector are ensured.
Drawings
Fig. 1 is a schematic front view of a main cabinet in embodiment 1;
FIG. 2 is a schematic side view of the main cabinet in embodiment 1;
FIG. 3 is a schematic front view of the structure of embodiment 2;
FIG. 4 is a schematic side view of the side cabinet in embodiment 2;
FIG. 5 is a schematic cross-sectional view of the connector;
FIG. 6 is a cross-sectional structural schematic view of a side expanding sleeve.
The reference numbers are as follows:
100-a main cabinet, 11-a main cabinet body, 12-a first three-position switch, 13-a first wire inlet and outlet sleeve, 14-a breaker solid-sealed pole, 15-a first connecting conductor, 16-a second connecting conductor, 17-a first busbar, 18-a third connecting conductor, 19-a second three-position switch, 20-a fourth connecting conductor and 21-a second wire inlet and outlet sleeve;
200-side cabinet, 22-side cabinet body, 23-second busbar, 24-third station switch, 25-fifth connecting conductor, 26-sixth connecting conductor and 27-third incoming and outgoing line sleeve;
300-connector, 28-side expanded sleeve, 281-metal conductive head, 282-insulating sleeve, 283-first blind hole, 284-second blind hole, 29-insulating piece, 30-conductive tube, 301-conductive contact finger, 31-sealing ring, 32-O type metal ring and 33-positioning pin.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, specific embodiments accompanied with figures are described in detail below, and it is apparent that the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making creative efforts based on the embodiments of the present invention, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Meanwhile, in the description of the present invention, it should be noted that the terms "front, rear, inside and outside" and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms first, second, or third are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The terms "mounted, connected and connected" in the present invention are to be understood broadly, unless otherwise explicitly specified or limited, for example: can be fixedly connected, detachably connected or integrally connected: they may be mechanically, electrically, or directly connected, or indirectly connected through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1 (Single cabinet solution)
The high-pressure gas-filled cabinet for offshore wind power provided by the embodiment comprises a main cabinet 100;
the main cabinet 100 comprises a main cabinet body 11, a first three-position switch 12, a first wire inlet and outlet sleeve 13, a breaker solid-sealed pole 14, a first connecting conductor 15, a second connecting conductor 16, a first busbar 17, a third connecting conductor 18, a second three-position switch 19, a fourth connecting conductor 20 and a second wire inlet and outlet sleeve 21;
the main cabinet 11 is filled with SF6 gas;
the first three-position switches 12 are arranged in three groups and are arranged above the inside of the main cabinet body 11 side by side along the width direction of the main cabinet body 11;
three first in-out line sleeves 13 are arranged on the side wall above the main cabinet body 11 side by side along the width direction of the main cabinet body 11, and each first in-out line sleeve 13 is electrically connected with the conductive static contact of each group of the first three-station switches 12;
the breaker solid-sealed polar pole 14 is positioned in the main cabinet body 11 and below the first three-position switches 12, and the breaker solid-sealed polar pole 14 is electrically connected with the middle-position support of each group of the first three-position switches 12 through three first connecting conductors 15;
three groups of first busbars 17 are arranged in the main cabinet body 11 side by side along the depth direction of the main cabinet body 11 and are positioned below the circuit breaker embedded pole 14; the three groups of first busbars 17 are electrically connected with the circuit breaker solid-sealed polar pole 14 through three second connecting conductors 16 respectively;
the second three-position switches 19 are arranged in three groups and are arranged below the inner part of the main cabinet body 11 side by side along the width direction of the main cabinet body 11; each first busbar 17 is electrically connected with the conductive static contacts of a group of second three-station switches 19 through a third connecting conductor 18;
the middle station support of each group of second three-station switches 19 is electrically connected with a second wire inlet and outlet sleeve 21 through a fourth connecting conductor 20;
the number of the second wire inlet and outlet sleeves 21 is three, and the second wire inlet and outlet sleeves are arranged on the side wall below the main cabinet 11 side by side along the width direction of the main cabinet 11.
When the single cabinet scheme works, the first in-out bushing 13 and the second in-out bushing 21 are interchangeable and can be used as an input end and an output end of current respectively, and the following description takes the first in-out bushing as an input end:
the first wire inlet and outlet sleeve 13 is used as a current input end of external power supply equipment, when a conductive static contact of the first three-position switch 12 is conducted with the middle-position support, current is transmitted to the breaker solid-sealed pole 14 through the first three-position switch 12 and the first connecting conductor 15, then the breaker solid-sealed pole 14 conducts the current into three first busbars 17 through three second connecting conductors 16, the three first busbars 17 conduct the current into the second three-position switch 19 through three third connecting conductors 18, and when the conductive static contact of the second three-position switch 19 is conducted with the middle-position support, the second three-position switch 19 conducts the current onto the external equipment through three fourth connecting conductors 20 and three second wire inlet and outlet sleeves 21.
In this embodiment, the insulating pillars of the first three-position switch 12 and the second three-position switch 19 are both provided with climbing-increasing structures, so that the inflatable cabinet can meet the use requirement of 66kV on the basis of compact structure.
Example 2 (Multi-cabinet solution)
The high-pressure inflatable cabinet for offshore wind power provided by the embodiment comprises a main cabinet 100 and at least one side cabinet 200 which is arranged on the left side or the right side of the main cabinet 100 side by side along the width direction of the main cabinet 100; in this embodiment, only one side cabinet 200 is connected in parallel, and according to actual use conditions, two sides of the main cabinet 100 can be respectively connected in parallel with one side cabinet 200, and the side cabinets 200 can be extended in parallel at the sides of the side cabinets 200 according to conditions;
the structure of the main cabinet in this embodiment is the same as that in embodiment 1, and details are not repeated here; the side cabinet structure, the main cabinet and the connection structure of the side cabinets are described in detail according to the condition that one side cabinet is connected in parallel:
the side cabinet 200 comprises a side cabinet body 22, a second busbar 23, a third three-position switch 24, a fifth connecting conductor 25, a sixth connecting conductor 26 and a third inlet and outlet bushing 27;
the side cabinet body 22 is filled with SF6 gas;
the second busbar 23 and the first busbar 17 have the same structure and number, the second busbar 23 has the same height as the first busbar 17, the three groups of first busbars 17 correspond to the three groups of second busbars 23 one by one, and the correspondingly arranged first busbars 17 and second busbars 23 are electrically connected through a connector 300, so that the main cabinet 100 is electrically connected with the side cabinet 200;
the third three-position switches 24 are arranged in three groups and are arranged below the inner part of the side cabinet body 22 side by side along the width direction of the side cabinet body 22; each second busbar 23 is electrically connected with each group of third station switches 24 through a fifth connecting conductor 25; each group of third three-position switches 24 is electrically connected with a third wire inlet and outlet sleeve 27 through a sixth connecting conductor 26; the number of the third inlet and outlet bushings 27 is three, and the third inlet and outlet bushings are arranged side by side on the side wall below the side cabinet 22 along the width direction of the side cabinet 22.
In this embodiment, the insulating support of the third position switch 24 in the side cabinet 22 is also provided with an increasing climbing structure, so as to meet the use requirement of 66 kV.
When the multi-station scheme works, a first inlet-outlet bushing 13 on the main cabinet 100 serves as a current input end of external power supply equipment, when a conductive static contact of a first three-station switch 12 is conducted with an intermediate station support, current is transmitted to a breaker solid-sealed polar pole 14 through the first three-station switch 12 and a first connecting conductor 15, then the breaker solid-sealed polar pole 14 guides the current into three first busbars 17 through three second connecting conductors 16, the first busbars 17 guide a part of the current into a second three-station switch 19 through three third connecting conductors 18, and when the conductive static contact of the second three-station switch 19 is conducted with the intermediate station support, the second three-station switch 19 transmits the current to the external equipment through a fourth connecting conductor 20 and a second inlet-outlet bushing 21;
meanwhile, the first busbar 17 shunts another part of current to a second busbar 23 of the side cabinet through the connector 300, the second busbar 23 transmits the current to a third station switch 24 through a fifth connecting conductor 25, and when a conductive static contact of the third station switch 24 is conducted with the middle station support, the third station switch 24 transmits the current to another external device through a sixth connecting conductor 26 and a third in-out sleeve 27.
The prior electric connector has more schemes, but in order to meet the use requirement of the utility model, the specific structure of the connector of the embodiment is as follows:
the connector 300 comprises a side expanding sleeve 28, an insulating member 29 and a conducting tube 30;
two side expanding sleeves 28 are respectively arranged on the side wall of the main cabinet body 11 and the side wall of the side cabinet body 22;
each side casing tube 28 comprises a metal conductive head 281 and an insulating sleeve 282; the metal conductive head 281 is embedded on the insulating sleeve; one end of the metal conductive head 281 extends out of the insulating sleeve and is used for connecting the first busbar 17 or the second busbar 23, the other end is positioned in the insulating sleeve 282, and the end is provided with a first blind hole 283; a second blind hole 284 is formed in the insulating sleeve 282, the second blind hole 284 and the first blind hole 283 are coaxial, and the aperture of the second blind hole 284 is larger than that of the first blind hole 283; the insulating sleeve 282 is provided with a creepage increasing structure at one end close to the metal conductive head 281;
two ends of the conductive tube 30 are respectively inserted into the first blind holes 283 of the two side expanding sleeves 28; an insulating member 29 is installed between the conductive tube 30 and the second blind hole 284 of the insulating sleeve 282, and the insulating member 29 is made by epoxy resin casting or by a rubber vulcanization process, in this embodiment, the insulating member is made by a rubber vulcanization process.
In order to have a better conductive effect, in this embodiment, conductive contact fingers 301 are disposed at two ends of the conductive tube 30, and the conductive tube 30 is electrically connected to the metal conductive heads 281 in the main cabinet 11 and the side cabinet 22 through the conductive contact fingers 301, so as to achieve conduction between the first busbar 17 and the second busbar 23.
In this embodiment, the second blind hole 284 is a tapered hole, and the insulator 29 is tapered, so that the insulator 29 and the insulating sleeve 282 are tapered. The conical surface matching not only facilitates assembly, but also has good sealing performance, avoids a discharge channel between the insulating part and the side expansion sleeve, and greatly improves the pressure resistance.
In order to meet the requirements of the offshore wind power on the inflatable cabinet on moisture resistance, corrosion resistance, mould resistance, salt mist resistance and the like, the connector of the embodiment is provided with a sealing and grounding structure, and the sealing and grounding structure comprises a sealing ring 31 and an O-shaped metal ring 32; a sealing ring groove is formed in the end face, far away from the metal conductive head 281, of the insulating sleeve 282, and a sealing ring 31 is installed in the sealing ring groove; the insulating part 29 is provided with an O-shaped metal ring 32 on the outer surface of the middle area (corresponding to the position between the two side expanding sleeves), and the O-shaped metal ring 32 is grounded through a lead, so that the insulation reliability of the connector is ensured.
In order to achieve reliable assembly of the main cabinet 100 and the side cabinet 200, the connector 300 further includes a positioning pin 33, a plurality of positioning pin holes are uniformly arranged on an end surface of the insulating sleeve 282 away from the metal conductive head 281 along a circumferential direction, and the positioning pin 33 is disposed between the plurality of positioning pin holes on the two side expanding sleeves 28.
The above disclosure is only for the specific embodiment of the present invention, but the embodiment of the present invention is not limited thereto, and any variations that can be made by those skilled in the art should fall within the scope of the present invention.
Claims (10)
1. The utility model provides a cabinet is aerifyd to high pressure for offshore wind power which characterized in that: comprises a main cabinet;
the main cabinet comprises a main cabinet body, a first three-position switch, a first wire inlet and outlet sleeve, a breaker solid-sealed polar pole, a first connecting conductor, a second connecting conductor, a first busbar, a third connecting conductor, a second three-position switch, a fourth connecting conductor and a second wire inlet and outlet sleeve;
SF6 gas is filled in the main cabinet body;
the first three-position switches are arranged in three groups and are arranged above the inner part of the main cabinet body side by side along the width direction of the main cabinet body;
the number of the first wire inlet and outlet sleeves is three, the first wire inlet and outlet sleeves are arranged on the side wall above the main cabinet body side by side along the width direction of the main cabinet body, and each first wire inlet and outlet sleeve is electrically connected with the conductive static contact of each group of the first three-station switches;
the circuit breaker solid-sealed polar pole is positioned in the main cabinet body and below the first three-position switches, and is respectively and electrically connected with the middle-position support of each group of first three-position switches through three first connecting conductors;
the first busbars are provided with three groups and are arranged in the main cabinet body side by side along the depth direction of the main cabinet body and positioned below the circuit breaker embedded pole; each first busbar is electrically connected with the circuit breaker solid-sealed polar pole through a second connecting conductor;
the second three-station switches are arranged in three groups and are arranged below the inner part of the main cabinet body side by side along the width direction of the main cabinet body; each first busbar is electrically connected with the conductive static contact of each group of second three-station switches through a third connecting conductor;
the middle station support of each group of second three-station switches is electrically connected with a second wire inlet and outlet sleeve through a fourth connecting conductor;
the second business turn over line sleeve pipe is three, and sets up side by side on the lateral wall of the main cabinet body below along the width direction of the main cabinet body.
2. The high-pressure gas-filled tank for offshore wind power as claimed in claim 1, wherein: the cabinet also comprises at least one side cabinet which is arranged on the left side or the right side of the main cabinet body side by side along the width direction of the main cabinet body;
the side cabinet comprises a side cabinet body, a second busbar, a third station switch, a fifth connecting conductor, a sixth connecting conductor and a third wire inlet and outlet sleeve;
SF6 gas is filled in the side cabinet body;
the structure and the number of the second bus bars are the same as those of the first bus bars, the second bus bars are as high as the first bus bars, the three groups of first bus bars and the three groups of second bus bars are in one-to-one correspondence, and the correspondingly arranged first bus bars and the correspondingly arranged second bus bars are electrically connected through connectors, so that the main cabinet is electrically connected with the side cabinet;
the third three-position switches are arranged in three groups and are arranged below the inner part of the side cabinet body side by side along the width direction of the side cabinet body; each second busbar is electrically connected with each group of third station switches through a fifth connecting conductor;
each group of third station switches is electrically connected with a third inlet and outlet bushing through a sixth connecting conductor;
the third business turn over line sleeve pipe is three, and sets up side by side on the lateral wall of the side cabinet body below along the width direction of the side cabinet body.
3. The high-pressure gas-filled tank for offshore wind power as claimed in claim 2, wherein: the connector comprises a side expansion sleeve, an insulating part and a conductive tube;
the two side expanding sleeves are respectively arranged on the side wall of the main cabinet body and the side wall of the side cabinet body;
each lateral expansion sleeve comprises a metal conductive head and an insulating sleeve; the metal conductive head is embedded on the insulating sleeve; one end of the metal conductive head extends out of the insulating sleeve and is used for connecting the first bus bar or the second bus bar, the other end of the metal conductive head is positioned in the insulating sleeve, and the end of the metal conductive head is provided with a first blind hole; a second blind hole is formed in the insulating sleeve, the second blind hole and the first blind hole are coaxial, and the aperture of the second blind hole is larger than that of the first blind hole;
two ends of the conductive tube are respectively inserted into the first blind holes of the two side expansion sleeves; and an insulating part is arranged between the conductive tube and the second blind hole of the insulating sleeve.
4. The high-pressure gas-filled cabinet for offshore wind power as claimed in claim 3, wherein: the two ends of the conductive tube are electrically connected with the metal conductive head through the conductive contact fingers.
5. The high-pressure gas-filled tank for offshore wind power as claimed in claim 4, wherein: the second blind hole is a conical hole, and the whole insulating part is in a frustum shape, so that the insulating part and the insulating sleeve form conical surface matching.
6. The high-pressure gas-filled tank for offshore wind power as claimed in claim 5, wherein: the connector further comprises a sealing and grounding structure, wherein the sealing and grounding structure comprises a sealing ring and an O-shaped metal ring; a sealing ring groove is formed in the end face, far away from the metal conductive head, of the insulating sleeve, and a sealing ring is installed in the sealing ring groove;
the outer surface of the middle area of the insulating part is provided with an O-shaped metal ring, and the O-shaped metal ring is grounded through a lead.
7. The high-pressure gas-filled cabinet for offshore wind power as claimed in claim 6, wherein: the connector further comprises positioning pins, a plurality of positioning pin holes are uniformly arranged on the end face of one end, far away from the metal conductive head, of the insulating sleeve along the circumferential direction, and positioning pins are arranged between the plurality of positioning pin holes in the two side expanding sleeves.
8. The high-pressure gas-filled tank for offshore wind power as claimed in claim 7, wherein: and the insulating sleeve is provided with a climbing-increasing structure at one end close to the metal conductive head.
9. The high-pressure gas-filled tank for offshore wind power as claimed in claim 8, wherein: and the insulating pillars of the first three-station switch, the second three-station switch and the third three-station switch are all provided with climbing-increasing structures.
10. The high-pressure gas-filled tank for offshore wind power as claimed in claim 9, wherein: the insulating part is made by epoxy resin pouring or by a rubber vulcanization process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220217392.7U CN216904022U (en) | 2022-01-26 | 2022-01-26 | High-pressure gas-filled cabinet for offshore wind power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220217392.7U CN216904022U (en) | 2022-01-26 | 2022-01-26 | High-pressure gas-filled cabinet for offshore wind power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216904022U true CN216904022U (en) | 2022-07-05 |
Family
ID=82184033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220217392.7U Active CN216904022U (en) | 2022-01-26 | 2022-01-26 | High-pressure gas-filled cabinet for offshore wind power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216904022U (en) |
-
2022
- 2022-01-26 CN CN202220217392.7U patent/CN216904022U/en active Active
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