GIS for interval and offshore platform

Abstract

The invention belongs to the field of gas insulated switchgear, and particularly relates to a GIS (gas insulated switchgear) for an interval and an offshore platform. In order to reduce the vibration of the three-position switch, the invention provides an interval. The interval comprises a bottom frame and a circuit breaker, the circuit breaker comprises three barrels, each barrel is provided with a wire inlet three-position switch and a wire outlet three-position switch, and the interval further comprises a wire inlet supporting structure used for supporting all the wire inlet three-position switches at the same time and a wire outlet supporting structure used for supporting all the wire outlet three-position switches at the same time. The inlet wire supporting structure comprises an inlet wire support and an inlet wire connecting piece used for connecting all inlet wire three-position switches into a whole. The outgoing line supporting structure comprises an outgoing line support and an outgoing line connecting piece used for connecting all the outgoing line three-position switches into a whole. The invention also provides a GIS for an offshore platform, which comprises the interval. According to the utility model, all the inlet wire three-position switches are fixed together, and all the outlet wire three-position switches are fixed together, so that the anti-vibration capability of each three-position switch is improved.

Description

Technical Field

[0001] The invention belongs to the field of gas insulated switchgear, and in particular relates to a GIS for a compartment and an offshore platform. Background Art

[0002] GIS (Gas Insulated Switchgear) can be used on land or offshore platforms. Compared with the situation when GIS is used on land, when GIS is used on offshore platforms, the offshore platforms often vibrate due to the impact of waves, so GIS needs to have better vibration resistance.

[0003] At present, in the prior art, the solution to improve the vibration resistance of GIS is to set a three-position switch on the side of the current transformer, thereby lowering the height of the GIS, thereby reducing the vibration of the GIS and improving the vibration resistance of the GIS.

[0004] For example, a Chinese invention patent with authorization announcement number CN112968357B and authorization announcement date 2023.06.30 discloses a GIS, in which the circuit breaker is horizontally arranged on a base frame, and the circuit breaker includes two side phase cylinders and one middle phase cylinder, each cylinder is connected with an incoming current transformer and an outgoing current transformer, and the incoming current transformer and the outgoing current transformer are both located above the corresponding cylinder, each incoming current transformer is connected with an incoming three-position switch, and each outgoing current transformer is connected with an outgoing three-position switch, and each three-position switch is located obliquely above the corresponding current transformer, and a support beam for supporting the three-position switch is provided between each three-position switch and the corresponding cylinder, thereby reducing the height of the GIS, improving the vibration resistance of the GIS, and making the GIS suitable for offshore platforms.

[0005] However, in the above GIS, each support independently supports a three-position switch, and the supporting effect is poor, resulting in a large vibration amplitude of each three-position switch. Summary of the invention

[0006] The object of the present invention is to provide a spacer to solve the technical problem that the vibration amplitude of each three-position switch in the existing GIS is relatively large.

[0007] The present invention also aims to provide a GIS for offshore platforms to solve the same technical problems mentioned above.

[0008] To achieve the above purpose, the technical solution of the interval provided by the present invention is: A compartment comprises a base frame and a circuit breaker horizontally arranged on the base frame, wherein the circuit breaker comprises two side phase cylinders and one middle phase cylinder, each cylinder being provided with an incoming line three-position switch and an outgoing line three-position switch, and the compartment further comprises an incoming line support structure for simultaneously supporting all the incoming line three-position switches and an outgoing line support structure for simultaneously supporting all the outgoing line three-position switches; the incoming line support structure comprises an incoming line support and an incoming line connector for connecting all the incoming line three-position switches as one, one end of the incoming line support is fixedly connected to the incoming line connector or the incoming line three-position switch, and the other end is fixedly connected to the base frame or the circuit breaker; the outgoing line support structure comprises an outgoing line support and an outgoing line connector for connecting all the outgoing line three-position switches as one, one end of the outgoing line support is fixedly connected to the outgoing line connector or the outgoing line three-position switch, and the other end is fixedly connected to the base frame or the circuit breaker.

[0009] Furthermore, a reinforcement piece is provided between the incoming line connector and the outgoing line connector, and two ends of the reinforcement piece are fixedly connected to the incoming line connector and the outgoing line connector respectively.

[0010] Furthermore, each incoming line support is an incoming line diagonal support, and each outgoing line support is an outgoing line diagonal support.

[0011] Furthermore, an outgoing current transformer is connected between each cylinder and the corresponding three-position switch for outgoing lines, and the three-position switch for outgoing lines is simultaneously located directly above the corresponding outgoing current transformer and the corresponding cylinder; each incoming three-position switch is fixedly connected to the corresponding cylinder through a height adjustment cylinder, or each incoming three-position switch is directly fixedly connected to the corresponding cylinder, or each incoming three-position switch is connected to the corresponding cylinder with an incoming current transformer, and each incoming current transformer is located directly above the corresponding cylinder; each incoming three-position switch is located directly above the corresponding cylinder.

[0012] Furthermore, the arrangement direction of the side phase cylinder and the middle phase cylinder is defined as the left-right direction, the inlet line diagonal brace includes an end inlet line diagonal brace arranged at the left and right ends of the inlet line connecting piece, one end of the end inlet line diagonal brace is fixedly connected to the base frame, and the outlet line diagonal brace includes an end outlet line diagonal brace arranged at the left and right ends of the outlet line connecting piece, one end of the end outlet line diagonal brace is fixedly connected to the base frame.

[0013] Furthermore, the end incoming line diagonal brace located at the left end of the incoming line connector and the end outgoing line diagonal brace located at the left end of the outgoing line connector are cross-arranged and fixedly connected; the end incoming line diagonal brace located at the right end of the incoming line connector and the end outgoing line diagonal brace located at the right end of the outgoing line connector are cross-arranged and fixedly connected.

[0014] Furthermore, the end of the incoming line three-position switch has a first connecting flange, a first bolt through-hole is provided on the first connecting flange, an incoming line bolt through-hole corresponding to the first bolt through-hole is provided on the incoming line connecting piece, the incoming line connecting piece is provided with a first bolt, the first bolt passes through the first bolt through-hole and the incoming line bolt through-hole at the same time to fix the incoming line connecting piece with the incoming line three-position switch; and / or, the end of the outgoing line three-position switch has a second connecting flange, a second bolt through-hole is provided on the second connecting flange, an outgoing line bolt through-hole corresponding to the second bolt through-hole is provided on the outgoing line connecting piece, the outgoing line connecting piece is provided with a second bolt, the second bolt passes through the second bolt through-hole and the outgoing line bolt through-hole at the same time to fix the outgoing line connecting piece with the outgoing line three-position switch.

[0015] Furthermore, a bridge for horizontally guiding cables is provided between the side phase cylinder and the middle phase cylinder, a control cabinet and a lead beam for downwardly guiding cables are installed on the base frame, each three-position switch is electrically connected to a cable, a wiring channel for horizontally guiding cables is provided on the base frame, and a first through hole for connecting the internal space of the control cabinet with the wiring channel is provided on the control cabinet. At least a part of the cables enter the control cabinet through the bridge, the lead beam, the wiring channel and the first through hole and are electrically connected to the control cabinet.

[0016] Furthermore, a second through hole is provided on the side of the lead beam away from the control cabinet, and at least a portion of the cables enter the control cabinet through the bridge, the second through hole, the wiring channel and the first through hole and are electrically connected to the control cabinet.

[0017] The beneficial effects of the interval of the present invention are as follows: the present invention is an improved invention. Compared with the background technology, in the present invention: the incoming line connector connects all the incoming line three-position switches as one, the outgoing line connector connects all the outgoing line three-position switches as one, and each support directly or indirectly supports the corresponding three-position switch, thereby improving the vibration resistance of each three-position switch and reducing the vibration amplitude of each three-position switch.

[0018] To achieve the above purpose, the technical solution of GIS for offshore platforms provided by the present invention is: A GIS for an offshore platform comprises a compartment, wherein the compartment comprises a base frame and a circuit breaker horizontally arranged on the base frame, wherein the circuit breaker comprises two side phase cylinders and one middle phase cylinder, each cylinder being provided with an incoming line three-position switch and an outgoing line three-position switch, and the compartment further comprises an incoming line support structure for simultaneously supporting all the incoming line three-position switches and an outgoing line support structure for simultaneously supporting all the outgoing line three-position switches; the incoming line support structure comprises an incoming line support and an incoming line connector for connecting all the incoming line three-position switches as one, wherein one end of the incoming line support is fixedly connected to the incoming line connector or the incoming line three-position switch, and the other end is fixedly connected to the base frame or the circuit breaker; the outgoing line support structure comprises an outgoing line support and an outgoing line connector for connecting all the outgoing line three-position switches as one, wherein one end of the outgoing line support is fixedly connected to the outgoing line connector or the outgoing line three-position switch, and the other end is fixedly connected to the base frame or the circuit breaker.

[0019] Furthermore, a reinforcement piece is provided between the incoming line connector and the outgoing line connector, and two ends of the reinforcement piece are fixedly connected to the incoming line connector and the outgoing line connector respectively.

[0020] Furthermore, each incoming line support is an incoming line diagonal support, and each outgoing line support is an outgoing line diagonal support.

[0021] Furthermore, an outgoing current transformer is connected between each cylinder and the corresponding three-position switch for outgoing lines, and the three-position switch for outgoing lines is simultaneously located directly above the corresponding outgoing current transformer and the corresponding cylinder; each incoming three-position switch is fixedly connected to the corresponding cylinder through a height adjustment cylinder, or each incoming three-position switch is directly fixedly connected to the corresponding cylinder, or each incoming three-position switch is connected to the corresponding cylinder with an incoming current transformer, and each incoming current transformer is located directly above the corresponding cylinder; each incoming three-position switch is located directly above the corresponding cylinder.

[0022] Furthermore, the arrangement direction of the side phase cylinder and the middle phase cylinder is defined as the left-right direction, the inlet line diagonal brace includes an end inlet line diagonal brace arranged at the left and right ends of the inlet line connecting piece, one end of the end inlet line diagonal brace is fixedly connected to the base frame, and the outlet line diagonal brace includes an end outlet line diagonal brace arranged at the left and right ends of the outlet line connecting piece, one end of the end outlet line diagonal brace is fixedly connected to the base frame.

[0023] Furthermore, the end incoming line diagonal brace located at the left end of the incoming line connector and the end outgoing line diagonal brace located at the left end of the outgoing line connector are cross-arranged and fixedly connected; the end incoming line diagonal brace located at the right end of the incoming line connector and the end outgoing line diagonal brace located at the right end of the outgoing line connector are cross-arranged and fixedly connected.

[0024] Furthermore, the end of the incoming line three-position switch has a first connecting flange, a first bolt through-hole is provided on the first connecting flange, an incoming line bolt through-hole corresponding to the first bolt through-hole is provided on the incoming line connecting piece, the incoming line connecting piece is provided with a first bolt, the first bolt passes through the first bolt through-hole and the incoming line bolt through-hole at the same time to fix the incoming line connecting piece with the incoming line three-position switch; and / or, the end of the outgoing line three-position switch has a second connecting flange, a second bolt through-hole is provided on the second connecting flange, an outgoing line bolt through-hole corresponding to the second bolt through-hole is provided on the outgoing line connecting piece, the outgoing line connecting piece is provided with a second bolt, the second bolt passes through the second bolt through-hole and the outgoing line bolt through-hole at the same time to fix the outgoing line connecting piece with the outgoing line three-position switch.

[0025] Furthermore, a bridge for horizontally guiding cables is provided between the side phase cylinder and the middle phase cylinder, a control cabinet and a lead beam for downwardly guiding cables are installed on the base frame, each three-position switch is electrically connected to a cable, a wiring channel for horizontally guiding cables is provided on the base frame, and a first through hole for connecting the internal space of the control cabinet with the wiring channel is provided on the control cabinet. At least a part of the cables enter the control cabinet through the bridge, the lead beam, the wiring channel and the first through hole and are electrically connected to the control cabinet.

[0026] Furthermore, a second through hole is provided on the side of the lead beam away from the control cabinet, and at least a portion of the cables enter the control cabinet through the bridge, the second through hole, the wiring channel and the first through hole and are electrically connected to the control cabinet.

[0027] The beneficial effects of the offshore platform GIS of the present invention are as follows: the present invention is an improved invention. Compared with the background technology, in the present invention: the incoming line connector connects all the incoming line three-position switches as one, the outgoing line connector connects all the outgoing line three-position switches as one, and each support directly or indirectly supports the corresponding three-position switch, thereby improving the vibration resistance of each three-position switch and reducing the vibration amplitude of each three-position switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a left schematic diagram of the GIS for offshore platform of the present invention; Figure 2 This is a schematic diagram of the structure of the GIS for offshore platforms of the present invention; Figure 3 It is a left side schematic diagram of the supporting structure in the GIS for offshore platform of the present invention; Figure 4 A top view schematic diagram of a support structure in a GIS for an offshore platform of the present invention; Figure 5 This is a schematic diagram of the structure of the bridge frame in the GIS for offshore platforms of the present invention; Figure 6The diagram is a schematic diagram of the routing of cables in the GIS for offshore platforms of the present invention.

[0029] Description of reference numerals: 1. Base frame; 2. Circuit breaker; 201. Side phase cylinder; 202. Middle phase cylinder; 3. Outgoing current transformer; 4. Outgoing three-position switch; 5. Incoming three-position switch; 6. Busbar; 701. Reinforcement; 702. End incoming brace; 703. Outgoing connecting piece; 704. Incoming connecting piece; 705. End outgoing brace; 706. Incoming bolt through hole; 707. Outgoing bolt through hole; 801. Bridge; 802. Lead beam; 9. Control cabinet; 10. Cable; 11. Height adjustment cylinder. DETAILED DESCRIPTION

[0030] To solve the problems in the background technology, the core inventive concept of the present invention is to fix all the incoming three-position switches together, and fix all the outgoing three-position switches together, thereby improving the vibration resistance of each three-position switch and reducing the vibration amplitude of each three-position switch.

[0031] The present invention is further described in detail below in conjunction with embodiments.

[0032] The specific embodiment of the interval provided by the present invention is: Reference Figures 1 to 4 As shown, as a basic specific implementation method of the first category, the interval includes a base frame 1 and a circuit breaker 2 horizontally arranged on the base frame 1, the circuit breaker 2 includes two side phase cylinders 201 and a middle phase cylinder 202, each cylinder is equipped with an incoming three-position switch 5 and an outgoing three-position switch 4, the interval also includes an incoming line support structure for simultaneously supporting all the incoming three-position switches 5 and an outgoing line support structure for simultaneously supporting all the outgoing three-position switches 4; the incoming line support structure includes an incoming line support and an incoming line connector 704 for connecting all the incoming three-position switches 5 as a whole, one end of the incoming line support is fixedly connected to the incoming line connector 704 or the incoming three-position switch 5, and the other end is fixedly connected to the base frame 1 or the circuit breaker 2; the outgoing line support structure includes an outgoing line support and an outgoing line connector 703 for connecting all the outgoing three-position switches 4 as a whole, one end of the outgoing line support is fixedly connected to the outgoing line connector 703 or the outgoing three-position switch 4, and the other end is fixedly connected to the base frame 1 or the circuit breaker 2. The inlet connector 704 and the outlet connector 703 are preferably angle steels, but may also be tubes, plates or other structures. The specific shapes of the inlet connector 704 and the outlet connector 703 are not limited in the present invention, as long as the inlet connector 704 can connect all the inlet three-position switches 5 as one, and the outlet connector 703 can connect all the outlet three-position switches 4 as one.

[0033] To facilitate understanding by those skilled in the art, hereinafter, the arrangement direction of the side phase cylinder 201 and the middle phase cylinder 202 is defined as the left-right direction, and the axial direction of the middle phase cylinder 202 is defined as the front-back direction.

[0034] In the present invention, there are four types of connection modes for the incoming line support (respectively: one end is connected to the incoming line three-position switch 5, and the other end is connected to the circuit breaker 2; one end is connected to the incoming line connector 704, and the other end is connected to the circuit breaker 2; one end is connected to the three-position switch, and the other end is connected to the chassis 1; one end is connected to the incoming line connector 704, and the other end is connected to the chassis 1). Similarly, there are also four types of connection modes for the outgoing line support, so a total of sixteen different solutions can be combined. For the convenience of understanding by those skilled in the art, four typical solutions are specifically described below: In the 1-1 type of specific implementation, one end of the incoming line support is fixedly connected to the incoming line three-position switch 5, and the other end is fixedly connected to the circuit breaker 2; one end of the outgoing line support is fixedly connected to the outgoing line three-position switch 4, and the other end is fixedly connected to the circuit breaker 2. At this time, the main difference between the 1-1 type of specific implementation and the Chinese invention patent with the authorization announcement number CN112968357B is that the 1-1 type of specific implementation has an incoming line connector 704 and an outgoing line connector 703, thereby improving the vibration resistance of each three-position switch and reducing the vibration amplitude of each three-position switch. Among them, each three-position switch needs to be configured with a corresponding support, and the number of supports is relatively large.

[0035] Preferably, as in the Chinese invention patent with authorization announcement number CN112968357B, each support is fixed to the flange of the corresponding cylinder for connecting other structures by bolts. For details, please refer to the fixing method of each connecting piece and the connecting flange of the corresponding three-position switch below; of course, each support can also be fixed to the outer cylinder surface of the corresponding cylinder by welding or other methods.

[0036] In the 1-2 type of specific implementation, one end of the incoming line support is fixedly connected to the incoming line connector 704, and the other end is fixedly connected to the circuit breaker 2; one end of the outgoing line support is fixedly connected to the outgoing line connector 703, and the other end is fixedly connected to the circuit breaker 2. Compared with the 1-1 type of specific implementation, in the 1-2 type of specific implementation, each support is fixedly connected to the corresponding connector. At this time, on the first hand, the arrangement position of the support is not limited by the position of the three-position switch, and the support can be arranged on the left and / or right side of the three-position switch; on the second hand, the number of supports is untied from the number of three-position switches, and the number of supports can be less than the number of three-position switches. Of course, the number of supports can also be more than the number of three-position switches; on the third hand, the support directly supports the connector, and the connector then supports all the three-position switches, and the support effect is better.

[0037] In the 1-3 types of specific implementations, one end of the incoming line support is fixedly connected to the incoming line three-position switch 5, and the other end is fixedly connected to the base frame 1; one end of the outgoing line support is fixedly connected to the outgoing line three-position switch 4, and the other end is fixedly connected to the base frame 1. Compared with the 1-1 type of specific implementation, in the 1-3 types of specific implementations, each support is fixedly connected to the base frame 1. At this time, the inclination angle of the support is not limited by the front and rear length of the circuit breaker 2, and the arrangement position of the support is not limited by the circuit breaker 2. At the same time, the vibration amplitude of the base frame 1 is smaller than the vibration amplitude of the circuit breaker 2. The base frame 1 is fixedly connected to the three-position switch by using the support structure, which can prevent the vibration of the circuit breaker 2 from being transmitted to the three-position switch through the support structure, thereby further reducing the amplitude of the three-position switch and improving the vibration resistance of the interval.

[0038] In the best 1-4 specific implementations, one end of the incoming line support is fixedly connected to the incoming line connector 704, and the other end is fixedly connected to the bottom frame 1; one end of the outgoing line support is fixedly connected to the outgoing line connector 703, and the other end is fixedly connected to the bottom frame 1. In this case, the arrangement position of the support is not limited by the position of the three-position switch, and the arrangement position of the support is not limited by the position of the circuit breaker 2, and the support can be conveniently arranged.

[0039] In the present invention, each support can be fixedly connected to other structures (three-position switch, connector, circuit breaker 2 or base frame 1) by means of screw connection, pin connection or welding.

[0040] In the present invention, the incoming line connector 704 connects all the incoming line three-position switches 5 as a whole, the outgoing line connector 703 connects all the outgoing line three-position switches 4 as a whole, and each support directly or indirectly supports the corresponding three-position switch, thereby improving the vibration resistance of each three-position switch and reducing the vibration amplitude of each three-position switch.

[0041] In the first type of specific implementation, the incoming line connector 704 and the outgoing line connector 703 are independent of each other. In the second type of specific implementation, different from the first type of specific implementation, a reinforcement member 701 is provided between the incoming line connector 704 and the outgoing line connector 703, and the two ends of the reinforcement member 701 are fixedly connected to the incoming line connector 704 and the outgoing line connector 703 respectively.

[0042] exist Figure 4 In the specific embodiment shown, the reinforcement member 701 is a reinforcement rod, and four reinforcement members 701 are arranged along the left-right direction; however, in other specific embodiments, the reinforcement member 701 can also be a reinforcement plate, and the length of the reinforcement plate along the left-right direction is equal to Figure 4The distance between the leftmost reinforcement member 701 and the rightmost reinforcement member 701. In the present invention, the specific structure of the reinforcement member 701 is not limited, as long as the reinforcement member 701 can be fixedly connected to two objects (the incoming connection member 704 and the outgoing connection member 703) respectively and make the two objects move synchronously.

[0043] Referring to the Chinese invention patent with authorization announcement number CN112968357B, in the first and second specific implementation modes, in order to reduce the height of the interval and improve the vibration resistance of the interval, each three-position switch can be respectively arranged obliquely above the corresponding current transformer. However, this will result in a larger footprint of the interval, and a larger installation site must be reserved on the offshore platform, which is not conducive to the layout of other equipment on the offshore platform.

[0044] On the basis of the first or second specific implementation embodiments, in the third specific implementation embodiment, an outgoing current transformer 3 is connected between each cylinder and the corresponding outgoing three-position switch 4, and the outgoing three-position switch 4 is simultaneously located directly above the corresponding outgoing current transformer 3 and the corresponding cylinder; each incoming three-position switch 5 is fixedly connected to the corresponding cylinder through a height adjustment cylinder 11, or each incoming three-position switch 5 is directly fixedly connected to the corresponding cylinder, or each incoming three-position switch 5 is connected to the corresponding cylinder with an incoming current transformer, and each incoming current transformer is located directly above the corresponding cylinder; each incoming three-position switch 5 is located directly above the corresponding cylinder; each incoming support is an incoming diagonal brace, and each outgoing support is an outgoing diagonal brace.

[0045] In the third type of specific implementation, since each three-position switch is located directly above the corresponding cylinder, the front-to-back length and left-to-right width of the interval can be reduced, reducing the footprint of the interval, which is conducive to arranging the interval in a small space, thereby saving installation land on the offshore platform and facilitating the arrangement of other equipment on the offshore platform.

[0046] At the same time, although the height of the three-position switch is relatively high (or the height of the interval is relatively high), the incoming line diagonal brace, the incoming line three-position switch 5 and other corresponding structures (see below for specific explanation) form a stable triangle, and the outgoing line diagonal brace, the outgoing line three-position switch 4, the outgoing line current transformer 3 and other corresponding structures (see below for specific explanation) form another stable triangle, which can reduce the vibration amplitude of the three-position switch and make the vibration resistance of the interval meet the use requirements.

[0047] Among them, when the lower end of the outgoing line diagonal brace is fixed on the circuit breaker 2, the outgoing line diagonal brace, the circuit breaker 2, the outgoing line current transformer 3 and the outgoing line three-position switch 4 form a stable triangle; when the lower end of the outgoing line diagonal brace is fixed on the base frame 1, the outgoing line diagonal brace, the base frame 1, the circuit breaker 2, the outgoing line current transformer 3 and the outgoing line three-position switch 4 form a stable triangle.

[0048] In the specific implementation of type 3-1, each incoming line three-position switch 5 is fixedly connected to the corresponding cylinder body through the height adjustment cylinder 11, so as to adapt to the height of the busbar 6. When the lower end of the incoming line diagonal brace is fixed on the circuit breaker 2, the incoming line diagonal brace, the circuit breaker 2, the height adjustment cylinder 11 and the incoming line three-position switch 5 form a stable triangle; when the lower end of the incoming line diagonal brace is fixed on the base frame 1, the incoming line diagonal brace, the base frame 1, the circuit breaker 2, the height adjustment cylinder 11 and the incoming line three-position switch 5 form a stable triangle.

[0049] Among them, the height adjustment cylinder 11 is a two-way connecting cylinder commonly used in the art, and its function is to electrically connect two electrical components. The specific structure will not be repeated here.

[0050] In the 3-2 type of specific implementation, each incoming line three-position switch 5 is directly fixedly connected to the corresponding cylinder. At this time, the height of the busbar 6 is lower than that of the busbar 6 in the 3-1 type of specific implementation, so as to ensure that the busbar 6 always extends in the left-right direction before being connected to the incoming line three-position switch 5. When the lower end of the incoming line diagonal brace is fixed on the circuit breaker 2, the incoming line diagonal brace, the circuit breaker 2 and the incoming line three-position switch 5 form a stable triangle; when the lower end of the incoming line diagonal brace is fixed on the base frame 1, the incoming line diagonal brace, the base frame 1, the circuit breaker 2 and the incoming line three-position switch 5 form a stable triangle.

[0051] In the 3-3 specific implementation, an incoming current transformer is connected between each incoming three-position switch 5 and the corresponding cylinder, and each incoming current transformer is located directly above the corresponding cylinder. When the lower end of the incoming diagonal brace is fixed on the circuit breaker 2, the incoming diagonal brace, the circuit breaker 2, the incoming current transformer and the incoming three-position switch 5 form a stable triangle; when the lower end of the incoming diagonal brace is fixed on the base frame 1, the incoming diagonal brace, the base frame 1, the circuit breaker 2, the incoming current transformer and the incoming three-position switch 5 form a stable triangle.

[0052] It should be noted that when the three-position switch is located obliquely above the corresponding current transformer, diagonal braces (including incoming line diagonal braces and outgoing line diagonal braces) can also be used to support the corresponding three-position switch (including incoming line three-position switch 5 and outgoing line three-position switch 4), thereby improving the vibration resistance of the interval.

[0053] On the basis of the third specific method, the present invention also makes the following improvements to the inlet brace and the outlet brace: Reference Figures 1 to 4 As shown, in the specific implementation manner of Class 4-1, the incoming line diagonal braces include end incoming line diagonal braces 702 arranged at the left and right ends of the incoming line connecting member 704. One end of the end incoming line diagonal brace 702 is fixedly connected to the chassis 1. The outgoing line diagonal braces include end outgoing line diagonal braces 705 arranged at the left and right ends of the outgoing line connecting member 703. One end of the end outgoing line diagonal brace 705 is fixedly connected to the chassis 1. At this time, each end diagonal brace (including the end incoming line diagonal brace 702 and the end outgoing line diagonal brace 705) is located on the left or right side of the circuit breaker 2, which is convenient for installation.

[0054] Preferably, in the specific implementation manner of Class 4-1-1, the end incoming line diagonal brace 702 at the left end of the incoming line connecting member 704 and the end outgoing line diagonal brace 705 at the left end of the outgoing line connecting member 704 are cross-arranged and fixedly connected; the end incoming line diagonal brace 702 at the right end of the incoming line connecting member 704 and the end outgoing line diagonal brace 705 at the right end of the outgoing line connecting member 704 are cross-arranged and fixedly connected. The specific fixed connection method can be welding, screwing or pinning, etc. The end incoming line diagonal brace 702 and the end outgoing line diagonal brace 705 are cross-arranged in an "X" shape structure, which can further improve the supporting ability of the end incoming line diagonal brace 702 and the end outgoing line diagonal brace 705 to each three-position switch, improve the anti-vibration ability of each three-position switch, and reduce the amplitude of vibration of each three-position switch.

[0055] Reference Figure 3 As shown, when there is a reinforcing member 701 between the incoming line diagonal brace and the outgoing line diagonal brace, looking from the left side, the end incoming line diagonal brace 702, the end outgoing line diagonal brace 705 and the reinforcing member 701 form a "fork" character. At this time, the supporting effect of each support on the corresponding three-position switch is the best.

[0056] Preferably, the lower end of the end incoming line diagonal brace 702 is fixed directly below the outgoing line three-position switch 4, and the lower end of the end outgoing line diagonal brace 705 is fixed directly below the incoming line three-position switch 5, which has good aesthetics. At the same time, each diagonal brace has a sufficient inclination angle, and the arrangement of the diagonal braces does not increase the front and back length of the interval, so that the interval has a smaller floor area.

[0057] In the specific implementation manner of Class 4-1-2, the end incoming line diagonal brace 702 and the end outgoing line diagonal brace 705 are independent of each other and not fixedly connected together.

[0058] In the specific implementation manner of Class 4-2, the lower end of the incoming line diagonal brace passes through the gap between the side-phase cylinder 201 and the middle-phase cylinder 202 and is fixedly connected to the chassis 1. The lower end of the outgoing line diagonal brace passes through the gap between the side-phase cylinder 201 and the middle-phase cylinder 202 and is fixedly connected to the chassis 1.

[0059] On the basis of any of the above specific implementation manners, the present invention also makes the following improvements to the connection manner between each connecting member and the corresponding three-position switch: In the 5-1 specific implementation, the end of the incoming line three-position switch 5 has a first connection flange, the first connection flange is provided with a first bolt through hole, the incoming line connector 704 is provided with an incoming line bolt through hole 706 corresponding to the first bolt through hole, the incoming line connector 704 is provided with a first bolt, the first bolt passes through the first bolt through hole and the incoming line bolt through hole 706 at the same time to fix the incoming line connector 704 with the incoming line three-position switch 5; the end of the outgoing line three-position switch 4 has a second connection flange, the second connection flange is provided with a second bolt through hole, the outgoing line connector 703 is provided with an outgoing line bolt through hole 707 corresponding to the second bolt through hole, the outgoing line connector 703 is provided with a second bolt, the second bolt passes through the second bolt through hole and the outgoing line bolt through hole 707 at the same time to fix the outgoing line connector 703 with the outgoing line three-position switch 4. The connector can be conveniently installed on the corresponding three-position switch by bolts, and the structure is simple.

[0060] In the specific implementation manner of category 5-2, what is different from the specific implementation manner of category 5-1 is that the incoming line connector 704 is welded to the first connecting flange of the incoming line three-position switch 5.

[0061] In the specific implementation manner of category 5-3, what is different from the specific implementation manner of category 5-1 is that the outgoing line connector 703 is welded on the outer cylinder surface of the cylindrical shell of the three-position switch.

[0062] On the basis of any of the above specific implementations, the present invention further improves the routing method of the cable 10 as follows: Reference Figures 5 and 6 As shown, in the sixth specific implementation, a bridge 801 for horizontally guiding the cable 10 is also provided between the side phase cylinder 201 and the middle phase cylinder 202, a control cabinet 9 and a lead beam 802 for downwardly guiding the cable 10 are also installed on the base frame 1, and each three-position switch is electrically connected with a cable 10, a wiring channel for horizontally guiding the cable 10 is provided on the base frame 1, and a first through hole for connecting the internal space of the control cabinet 9 with the wiring channel is provided on the control cabinet 9, and all the cables 10 enter the control cabinet 9 through the bridge 801, the lead beam 802, the wiring channel and the first through hole and are electrically connected to the control cabinet 9. The bridge 801 can be fixed on the base frame 1 or the circuit breaker 2, and the bridge 801 will be blocked by the cylinder when looking at the interval from the left or right side, and the overall appearance quality of the interval is better (that is, the interval is more neat and beautiful).

[0063] It should be noted that in the sixth embodiment, the bridge 801 may be a hollow box or other structure, and the lead beam 802 may be a hollow box or other structure; or, the structure of the bridge 801 and the lead beam 802 is the same as the structure of the grid bridge and the vertical line groove in the Chinese invention patent with the authorization announcement number CN112968357B. In the sixth embodiment, the main difference between the cable routing and the cable routing in the Chinese invention patent with the authorization announcement number CN112968357B is that in the Chinese invention patent with the authorization announcement number CN112968357B, the cable 10 moves to the left and right sides after leaving the vertical line groove and enters the bottom line groove, and finally enters the control cabinet 9 from the bottom line groove; while in the sixth embodiment, the cable 10 moves directly from the middle of the bottom frame 1 along the front-to-back direction to the bottom of the control cabinet 9 after leaving the lead beam 802, and directly enters the control cabinet 9 through the routing channel and the first through hole of the bottom frame 1. Among them, after the cable 10 enters the control cabinet 9, the first through hole of the control cabinet 9 can be sealed with fireproof mud to ensure that the control cabinet 9 has a high waterproof level.

[0064] In the seventh embodiment, the difference from the sixth embodiment is that a second through hole is provided on the side of the lead beam 802 away from the control cabinet 9, and a portion of the cables 10 enters the control cabinet 9 through the bridge 801, the lead beam 802, the wiring channel and the first through hole and is electrically connected to the control cabinet 9, and another portion of the cables 10 enters the control cabinet 9 through the bridge 801, the second through hole, the wiring channel and the first through hole and is electrically connected to the control cabinet 9. Allowing a portion of the cables 10 to enter the wiring channel through the second through hole in advance can reduce the number of cables 10 entering the wiring channel through the lead beam 802, and can also reduce the number of cables 10 passing through the lead beam 802, thereby avoiding the accumulation of cables 10 at the lead beam 802, making the arrangement of the cables 10 more convenient.

[0065] Among them, the 6th type of specific implementation is more suitable for intervals with fewer cables, and the 7th type of specific implementation is more suitable for intervals with more cables. According to actual conditions, technical personnel in this field can choose a suitable cable arrangement method.

[0066] In the eighth embodiment, the arrangement of the cable 10 is the same as that of the cable 10 in the Chinese invention patent with the authorization announcement number CN112968357B, which will not be described in detail here.

[0067] exist Figures 1 to 6In the specific embodiment shown, each diagonal brace includes a diagonal steel pipe and connection seats connected to both ends of the diagonal steel pipe, one of which is used to be fixedly connected to the base frame 1, and the other is used to be fixedly connected to the corresponding connection piece. Preferably, the surfaces of the reinforcement member 701 and the diagonal brace are smooth, so as to prevent the staff from being scratched by the reinforcement member 701 and the diagonal brace.

[0068] Of course, each diagonal brace and reinforcement 701 can also be composed of structures such as channel steel or U-shaped steel. The specific structure of the diagonal brace and reinforcement 701 is not limited in the present invention, as long as the diagonal brace can directly or indirectly support the three-position switch, and the reinforcement 701 can make the incoming connector 704 and the outgoing connector 703 move synchronously.

[0069] In the present invention, in a specific embodiment, preferably, the structure of the chassis 1 may include an upper plate, a lower plate and two channel steels located between the two plates, the two channel steels are located on the left and right sides of the two plates respectively, and the space between the two channel steels forms a wiring channel, which has a simple structure. At the same time, there is no need to provide a wiring hole on the channel steel for the cable 10 to pass through, which can ensure that the chassis 1 has a high structural strength.

[0070] In other specific implementations, the chassis 1 may also be other existing chassis, which will not be described in detail here.

[0071] The specific embodiment of the GIS for offshore platforms provided by the present invention is as follows: like Figures 1 to 6 As shown, the GIS for offshore platforms includes m intervals, wherein the specific structure of n intervals is the same as the specific structure of any one of the specific embodiments of the intervals of the present invention, m≥n≥1, and will not be repeated here.

[0072] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions recorded in the aforementioned embodiments without creative work, or to replace some of the technical features therein with equivalents, or to organically combine different types of specific implementations, thereby combining the attached Figures 1 to 6 The specific implementation methods given in the specification are, of course, those skilled in the art can also combine the specific implementation methods not given in the other drawings of the specification. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A compartment, comprising a base frame and a circuit breaker arranged horizontally on the base frame, the circuit breaker comprising two side phase cylinders and one middle phase cylinder, each cylinder being provided with an incoming three-position switch and an outgoing three-position switch, characterized in that: The interval also includes an incoming line support structure for simultaneously supporting all incoming line three-position switches and an outgoing line support structure for simultaneously supporting all outgoing line three-position switches; the incoming line support structure includes an incoming line support and an incoming line connector for connecting all incoming line three-position switches as one, one end of the incoming line support is fixedly connected to the incoming line connector or the incoming line three-position switch, and the other end is fixedly connected to the base frame or the circuit breaker; the outgoing line support structure includes an outgoing line support and an outgoing line connector for connecting all outgoing line three-position switches as one, one end of the outgoing line support is fixedly connected to the outgoing line connector or the outgoing line three-position switch, and the other end is fixedly connected to the base frame or the circuit breaker.

2. The spacer according to claim 1, characterized in that A reinforcement piece is provided between the incoming line connector and the outgoing line connector, and two ends of the reinforcement piece are respectively fixedly connected to the incoming line connector and the outgoing line connector.

3. The spacer according to claim 1 or 2, characterized in that: Each incoming line support is an incoming line diagonal brace, and each outgoing line support is an outgoing line diagonal brace.

4. The spacer according to claim 3, characterized in that An outgoing current transformer is connected between each cylinder and the corresponding three-position switch for outgoing lines, and the three-position switch for outgoing lines is located directly above the corresponding outgoing current transformer and the corresponding cylinder at the same time; each incoming three-position switch is fixedly connected to the corresponding cylinder through a height adjustment cylinder, or each incoming three-position switch is directly fixedly connected to the corresponding cylinder, or each incoming three-position switch is connected to the corresponding cylinder with an incoming current transformer, and each incoming current transformer is located directly above the corresponding cylinder; each incoming three-position switch is located directly above the corresponding cylinder.

5. The spacer according to claim 4, characterized in that The arrangement direction of the side phase cylinder and the middle phase cylinder is defined as the left-right direction, the inlet line diagonal brace includes an end inlet line diagonal brace arranged at the left and right ends of the inlet line connecting piece, one end of the end inlet line diagonal brace is fixedly connected to the base frame, and the outlet line diagonal brace includes an end outlet line diagonal brace arranged at the left and right ends of the outlet line connecting piece, one end of the end outlet line diagonal brace is fixedly connected to the base frame.

6. The spacer according to claim 5, characterized in that The end incoming line diagonal brace located at the left end of the incoming line connector is cross-arranged and fixedly connected with the end outgoing line diagonal brace located at the left end of the outgoing line connector; the end incoming line diagonal brace located at the right end of the incoming line connector is cross-arranged and fixedly connected with the end outgoing line diagonal brace located at the right end of the outgoing line connector.

7. The spacer according to claim 1 or 2, characterized in that: The end of the incoming line three-position switch has a first connecting flange, a first bolt through-hole is provided on the first connecting flange, an incoming line bolt through-hole corresponding to the first bolt through-hole is provided on the incoming line connecting piece, the incoming line connecting piece is provided with a first bolt, the first bolt passes through the first bolt through-hole and the incoming line bolt through-hole at the same time to fix the incoming line connecting piece with the incoming line three-position switch; and / or, the end of the outgoing line three-position switch has a second connecting flange, a second bolt through-hole is provided on the second connecting flange, an outgoing line bolt through-hole corresponding to the second bolt through-hole is provided on the outgoing line connecting piece, the outgoing line connecting piece is provided with a second bolt, the second bolt passes through the second bolt through-hole and the outgoing line bolt through-hole at the same time to fix the outgoing line connecting piece with the outgoing line three-position switch.

8. The spacer according to claim 1 or 2, characterized in that: A bridge for guiding cables horizontally is also provided between the side phase cylinder and the middle phase cylinder, a control cabinet and a lead beam for guiding cables downward are also installed on the base frame, each three-position switch is electrically connected to a cable, a wiring channel for guiding cables horizontally is provided on the base frame, and a first through hole for connecting the internal space of the control cabinet with the wiring channel is provided on the control cabinet. At least a part of the cables enter the control cabinet through the bridge, the lead beam, the wiring channel and the first through hole and are electrically connected to the control cabinet.

9. The spacer according to claim 8, characterized in that A second through hole is also provided on the side of the lead beam away from the control cabinet. At least a portion of the cables enter the control cabinet through the bridge, the second through hole, the wiring channel and the first through hole and are electrically connected to the control cabinet.

10. A GIS for offshore platforms, characterized in that: The invention comprises the spacer as described in any one of claims 1 to 9.

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