Method and system for arranging tubular busbars

Abstract

The application provides a pipe-type busbar arrangement method and system, and belongs to the technical field of power plant design. In view of the problem that the actual length of the pipe-type busbar arranged manually is difficult to predict, the pipe-type busbar is arranged by using a PDMS platform, the wall-penetrating position of the pipe-type busbar and the setting position of the support hanger are accurately preset, and the accurate prediction of the length of the pipe-type busbar is realized. The application has the characteristics that the reality is highly consistent, the project object is maximally reflected, the mutual relationship and spatial distance of the equipment, the pipeline and the civil engineering are stereoscopically presented, and the technical effect of completely solving the old problems of design error and deviation from the reality is achieved.

Description

Technical Field

[0001] This invention relates to the field of power plant design technology, and more specifically, to a method and system for arranging tubular busbars. Background Technology

[0002] In a thermal power plant, the process of generating electricity is as follows: a boiler uses the heat energy released from fuel combustion to heat treated water into high-temperature, high-pressure steam. This steam enters a turbine, generating mechanical energy. The turbine drives a generator, converting the mechanical energy into electrical energy, which is then transmitted to the main transformer via a tubular busbar. The main transformer is the primary step-down transformer used for power transmission and transformation in a unit or substation. Both the main transformer and the generator are core equipment in a thermal power plant. Tubular busbars are one of the key pieces of equipment in power transmission and transformation systems, playing a crucial role in the safe and reliable operation of the system and electrical equipment. They are mainly used in my country's power construction projects for conductor connections between power grid transmission lines and substation transformers, jumpers in transmission lines, connecting conductors in electrical equipment, and as current conductors in high-current DC de-icing devices. They are a completely new type of conductor, replacing traditional rectangular, channel, and rod-shaped busbars and flexible conductors. Tubular busbars require an installation structure for secure installation. However, currently, existing tubular busbars are typically protected and secured using sealing rings and electrical tape when connected to external switchgear.

[0003] In the power plant design phase, it is necessary to manually measure the length of the 12kV fully insulated copper tubular busbar from the generator to the main transformer, and then feed back the distance data measured on-site to the tubular busbar manufacturer for processing and manufacturing. However, since the fully insulated copper tubular busbar cannot have any breaks along its entire length and needs to pass through walls in many places, it brings great difficulties to the manual statistical work.

[0004] Therefore, there is an urgent need for a safe and efficient method for arranging tubular busbars. Summary of the Invention

[0005] The purpose of this invention is to provide a method and system for arranging tubular busbars, which achieves the technical effect of improving the efficiency of tubular busbar arrangement.

[0006] A method for arranging tubular busbars includes the following steps:

[0007] Multiple tubular busbars are arranged on the generator;

[0008] The high-voltage switchgear room, high-voltage switchgear, zero-loss current limiting device room, zero-loss current limiting device, main transformer room, main transformer, generator room, and generator equipped with tubular busbars are displayed in full scale on the PDMS.

[0009] The setting of the tube type busbar from the generator to the high voltage cabinet, the connection of the generator and the high voltage cabinet through the tube type busbar; the determination of the length of the tube type busbar between the generator and the high voltage cabinet;

[0010] The determination of the tube type busbar wall passing position on the shared wall between the high voltage cabinet room and the zero loss current limiting device room, the setting of the tube type busbar from the high voltage cabinet to the zero loss current limiting device, the connection of the high voltage cabinet and the zero loss current limiting device through the tube type busbar; the determination of the length of the tube type busbar between the generator and the high voltage cabinet;

[0011] The determination of the tube type busbar wall passing position on the shared wall between the zero loss current limiting device room and the main transformer room, the setting of the tube type busbar from the zero loss current limiting device to the main transformer, the connection of the tube type busbar from the zero loss current limiting device and the main transformer; the determination of the length of the tube type busbar between the zero loss current limiting device and the main transformer;

[0012] According to the tube type busbar from the generator to the high voltage cabinet, the tube type busbar from the high voltage cabinet to the zero loss current limiting device and the tube type busbar from the zero loss current limiting device to the main transformer, and the length of the tube type busbar between the generator and the high voltage cabinet, the length of the tube type busbar between the generator and the high voltage cabinet and the length of the tube type busbar between the zero loss current limiting device and the main transformer, the tube type busbar is arranged.

[0013] Further, preferably, when the tube type busbar from the high voltage cabinet to the zero loss current limiting device is set, the tube type busbar is connected with the zero loss current limiting device through the tube type busbar, and the tube type busbar support hanger is further set.

[0014] Further, preferably, the tube type busbar support hanger comprises a GIS base frame and a pre-buried foundation channel steel; the GIS base frame and the foundation channel steel are welded.

[0015] Further, preferably, the pre-buried channel steel is reliably connected with the main grounding net, the main grounding net is composed of grounding wires, and the grounding wires are hot-dip galvanized flat steel parts.

[0016] Further, preferably, the GIS base frame is reliably connected with the grounding wires of the main grounding net, and the number of the connection points between the GIS base frame and the grounding wires is greater than or equal to 4.

[0017] Further, preferably, the number of the tube type busbars connected with the generator is 3.

[0018] Further, preferably, the diameter of the expansion joint matched with the tube type busbar is greater than or equal to 1.2 times of the diameter of the tube type busbar.

[0019] The application also protects a tube type busbar arrangement system, which comprises,

[0020] The pipe busbar setting unit is used for arranging a plurality of pipe busbars on the generator; the high-voltage cabinet room, the high-voltage cabinet, the zero-loss current limiting device room, the zero-loss current limiting device, the main transformer room, the main transformer, the generator room and the generator provided with the pipe busbar are proportionally presented on the PDMS;

[0021] The pipe busbar setting unit is used for arranging a plurality of pipe busbars on the generator; the high-voltage cabinet room, the high-voltage cabinet, the zero-loss current limiting device room, the zero-loss current limiting device, the main transformer room, the main transformer, the generator room and the generator provided with the pipe busbar are proportionally presented on the PDMS;

[0022] The pipe busbar setting unit is used for arranging a plurality of pipe busbars on the generator; the high-voltage cabinet room, the high-voltage cabinet, the zero-loss current limiting device room, the zero-loss current limiting device, the main transformer room, the main transformer, the generator room and the generator provided with the pipe busbar are proportionally presented on the PDMS;

[0023] Further, preferably, the number of pipe busbars connected to the generator is 3.

[0024] Further, preferably, the diameter of the telescopic joint adapted to the pipe busbar is greater than 1.2 times the diameter of the pipe busbar.

[0025] As described above, the pipe busbar arrangement method and system of the present application, aiming at the problem of difficulty in predicting the actual length of the pipe busbar arranged manually, realizes accurate prediction of the length of the pipe busbar by arranging the pipe busbar on the PDMS platform, accurately presets the wall-penetrating position of the pipe busbar and the setting position of the support hanger, and has the characteristics of high degree of agreement with reality, maximum reflection of engineering physical objects, three-dimensional presentation of the mutual relationship and spatial distance of equipment, pipelines, civil engineering and the like, and achieves the technical effect of completely solving the old problems of design errors and deviation from reality. BRIEF DESCRIPTION OF DRAWINGS

[0026] Other objects and results of the present application will become more fully understood from the following detailed description, the appended claims, and the accompanying drawings. In the drawings:

[0027] Figure 1 is a schematic diagram of the arrangement of the tubular busbar according to an embodiment of the present application;

[0028] Figure 2 is a scene diagram of the arrangement of the tubular busbar according to an embodiment of the present application;

[0029] wherein,

[0030] 1, tubular busbar one; 2, tubular busbar two; 3, tubular busbar three; 4, high-voltage cabinet one; 5, high-voltage cabinet two; 6, high-voltage cabinet three; 7, high-voltage cabinet four; 8, high-voltage cabinet five; 9, zero-loss current limiting device one; 10, zero-loss current limiting device two; 11, zero-loss current limiting device three; 12, main transformer. DETAILED DESCRIPTION

[0031] In the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It can be evident, however, that the embodiments can be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

[0032] It is to be understood that the terms "horizontal", "vertical", "upper", "lower", "top", "middle", "length", "inner", "bottom", etc., indicate relative positions or orientations, and are used for convenience only to describe the present application and the accompanying drawings, and are not intended to indicate or imply specific orientations of the components or elements described therein, and thus are not to be construed as limiting the present application.

[0033] Unless otherwise defined, the terms "mount", "connect", "connection", "fixed", "fixedly connected", and the like, are to be construed as broad terms, for example, they can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection, or communication with each other; can be direct connection, or indirect connection through intermediate medium; can be internal connection of two elements, or interaction relationship between two elements, unless otherwise explicitly defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In the prior art, it is difficult for a pipe process designer to predict the length of a pipe busbar through multiple rooms; the pipe busbar arrangement method of the present application aims at the problem of difficulty in predicting the actual length of a pipe busbar arranged manually in the prior art, and realizes accurate prediction of the length of a pipe busbar by arranging the pipe busbar by using a PDMS platform, accurately presetting the wall-penetrating position of the pipe busbar and the setting position of a support hanger, and achieving accurate prediction of the length of the pipe busbar; has the characteristics of high degree of agreement with reality, maximum reflection of engineering physical objects, and stereoscopic presentation of the mutual relationship and spatial distance of equipment, pipes, civil engineering, etc.; and achieves the technical effect of completely solving the old problem of design error and deviation from reality.

[0035] Embodiment 1

[0036] The various embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0037] Figure 1 And Figure 2 The arrangement scene of the combustor is described in an entirety. Specifically, Figure 1 is a schematic diagram of arrangement of a pipe busbar according to an embodiment of the present application; Figure 2 is a scene diagram of arrangement of a pipe busbar according to an embodiment of the present application.

[0038] The pipe busbar arrangement method comprises steps S110-S160.

[0039] S110, arrange multiple pipe busbars on a generator; present a high-voltage cabinet room, a high-voltage cabinet, a zero-loss current-limiting device room, a zero-loss current-limiting device, a main transformer room, a main transformer, a generator room and the generator provided with the pipe busbar in a full scale on a PDMS.

[0040] Taking a 1x60MW ultra-high-temperature and ultra-high-pressure coal gas power generation project 110kV substation project as an example, the power plant design project not only has a high-voltage cabinet, a zero-loss current-limiting device and a main transformer, but also has devices connected by a pipe busbar, such as Figure 1As shown, the high-voltage cabinet includes high-voltage cabinet one 4, high-voltage cabinet two 5, high-voltage cabinet three 6, high-voltage cabinet four 7, high-voltage cabinet five 8; the tubular bus includes tubular bus one 1, tubular bus two 2, tubular bus three 3, high-voltage cabinet one 4; and the zero-loss current limiting device includes zero-loss current limiting device one 9, zero-loss current limiting device two 10, zero-loss current limiting device three 11; and the transformer includes the main transformer 12. In the design of the power plant, the high-voltage cabinet, the zero-loss current limiting device, and the main transformer are usually located in separate rooms, and these three rooms are usually arranged in the order of the generator room, the zero-loss current limiting device room, and the main transformer room. The high-voltage cabinet is located in the generator room, the zero-loss current limiting device is located in the zero-loss current limiting device room, and the main transformer is located in the main transformer room. The 12kV full-insulation copper pipe bus is connected from the generator interface to the high-voltage cabinet, then from the high-voltage cabinet to the zero-loss current limiting device, and then from the zero-loss current limiting device to the main transformer.

[0041] S120, set the direction of the tubular bus from the generator to the high-voltage cabinet, connect the generator and the high-voltage cabinet through the tubular bus; determine the length of the tubular bus between the generator and the high-voltage cabinet. Wherein, the tubular bus and the high-voltage cabinet are connected through copper bars.

[0042] It should be noted that the main transformer low-voltage side to the zero-loss device is all 12kV full-insulation copper tubular bus line, and the number of expansion joints matched with each section of the bus is required according to the installation drawing. The arrangement and spacing are not more than 20m, and the cross section of the expansion joint is not less than 1.2 times the cross section of the tubular bus. That is, the diameter of the expansion joint matched with the tubular bus is ≥1.2 times the diameter of the tubular bus. The high-voltage cabinet and other cabinet bodies are oil-displacement nitrogen-injection cabinet bodies. The tubular bus is a straight aluminum pipe, which is installed horizontally or slightly inclined between power equipment. One end of the tubular bus is connected to the equipment terminal plate through a tubular bus support frame, a fixed seat, a universal joint, and an expansion joint, and the other end is connected to another equipment terminal plate through a tubular bus support frame, a sliding support frame, a sliding rod, a support frame, and an expansion joint.

[0043] Specifically, when setting the direction of the tubular bus from the generator to the high-voltage cabinet, connecting the generator and the high-voltage cabinet through the tubular bus, it also includes setting the support and suspension frame of the tubular bus. The support and suspension frame includes a GIS base frame and a pre-buried foundation channel steel; the GIS base frame and the foundation channel steel are welded. The pre-buried channel steel is reliably connected to the main grounding network, the main grounding network is composed of grounding wires, and the grounding wires are hot-dip galvanized flat steel parts. The GIS base frame is reliably connected to the grounding wires of the main grounding network, and the number of connection points between the GIS base frame and the grounding wires is greater than or equal to 4. In the specific implementation process, the direction of each tubular bus should avoid the main beam of the civil engineering and the support and suspension frame of other tubular buses.

[0044] S130, determining a pipe busbar through-wall position on a shared wall between the high-voltage cabinet room and the zero-loss current limiting device room, setting a pipe busbar direction from the high-voltage cabinet to the zero-loss current limiting device, connecting the high-voltage cabinet and the zero-loss current limiting device through the pipe busbar, and determining a length of the pipe busbar between the generator and the high-voltage cabinet. A through-wall bushing is arranged at a connection between a pipe busbar body and the wall, and a rubber gasket is arranged on a circumferential inner wall of the through-wall bushing.

[0045] Specifically, when the pipe busbar direction from the high-voltage cabinet to the zero-loss current limiting device is set, the high-voltage cabinet and the zero-loss current limiting device are connected through the pipe busbar, and the pipe busbar support hanger is arranged.

[0046] S140, determining a pipe busbar through-wall position on a shared wall between the zero-loss current limiting device room and the main transformer room, setting a pipe busbar direction from the zero-loss current limiting device to the main transformer, connecting the pipe busbar from the zero-loss current limiting device and the main transformer through the pipe busbar, and determining a length of the pipe busbar between the zero-loss current limiting device and the main transformer.

[0047] Specifically, when the pipe busbar direction from the zero-loss current limiting device to the main transformer is set, the pipe busbar from the zero-loss current limiting device and the main transformer is connected through the pipe busbar, and the pipe busbar support hanger is arranged.

[0048] In one specific embodiment, the pipe busbar support hanger is usually made of a steel plate punched, and in use, the pipe busbar support hanger is directly fixed on a support insulator.

[0049] In the specific implementation process, the direction of each pipe busbar should avoid the main beam of civil engineering and the support hanger of other pipe busbars. Moreover, the center line of the 110kV GIS device B phase is 1850mm away from the center line of the main transformer B phase, so as to ensure that the distance between the live conductor and the ground is not less than 100mm.

[0050] S140, according to the trend of the tubular busbar from the generator to the high-voltage cabinet, the trend of the tubular busbar from the high-voltage cabinet to the zero-loss current limiting device, and the trend of the tubular busbar from the zero-loss current limiting device to the main transformer, and the length of the tubular busbar between the generator and the high-voltage cabinet, the length of the tubular busbar between the generator and the high-voltage cabinet, and the length of the tubular busbar between the zero-loss current limiting device and the main transformer, the tubular busbar is arranged.

[0051] In the specific implementation process, the tubular busbar is installed in the same system as the main transformer low-voltage side busbar, the GIS room busbar and the generator small room, and the overall installation engineering needs to be checked against the main transformer installation drawing and the high factory transformer installation drawing at the same time. All electrical equipment normal non-live metal shell, cable support, steel structure, foundation channel steel and the like should be reliably connected with indoor grounding wire not less than two points, wherein GIS is reliably connected with not less than four points. The material quantity and specification can be appropriately adjusted according to the actual installation condition during construction.

[0052] The tubular busbar arrangement method of the application aims at the problem of difficult prediction of actual length of the tubular busbar arranged manually at present, and realizes accurate prediction of the length of the tubular busbar by arranging the tubular busbar by using the PDMS platform, accurately presetting the wall-penetrating position of the tubular busbar and the setting position of the support and hanger, and has the characteristics of high degree of agreement with reality, maximum reflection of engineering physical object, three-dimensional presentation of the mutual relationship and spatial distance of equipment, pipes, civil engineering and the like, and achieves the technical effect of completely solving the old problems of design error and deviation from reality.

[0053] The application also protects a tubular busbar arrangement system, the system comprising: a tubular busbar setting unit for arranging a plurality of tubular busbars on a generator; a high-voltage cabinet room, a high-voltage cabinet, a zero-loss current limiting device room, a zero-loss current limiting device, a main transformer room, a main transformer, a generator room and a generator provided with tubular busbars are proportionally presented on a PDMS; a tubular busbar layout setting unit for setting the layout of the tubular busbar from the generator to the high-voltage cabinet, connecting the generator and the high-voltage cabinet through the tubular busbar; determining the length of the tubular busbar between the generator and the high-voltage cabinet; determining the tubular busbar wall-penetrating position on the shared wall between the high-voltage cabinet room and the zero-loss current limiting device room, setting the layout of the tubular busbar from the high-voltage cabinet to the zero-loss current limiting device, connecting the high-voltage cabinet and the zero-loss current limiting device through the tubular busbar; determining the length of the tubular busbar between the generator and the high-voltage cabinet; determining the tubular busbar wall-penetrating position on the shared wall between the zero-loss current limiting device room and the main transformer room, setting the layout of the tubular busbar from the zero-loss current limiting device to the main transformer, connecting the zero-loss current limiting device and the main transformer through the tubular busbar; determining the length of the tubular busbar between the zero-loss current limiting device and the main transformer; and an arrangement unit for arranging the tubular busbar according to the layout of the tubular busbar from the generator to the high-voltage cabinet, the layout of the tubular busbar from the high-voltage cabinet to the zero-loss current limiting device, the layout of the tubular busbar from the zero-loss current limiting device to the main transformer, the length of the tubular busbar between the generator and the high-voltage cabinet, the length of the tubular busbar between the generator and the high-voltage cabinet and the length of the tubular busbar between the zero-loss current limiting device and the main transformer.

[0054] In a specific embodiment, the number of tubular busbars connected to the generator is 3. The diameter of the expansion joint adapted to the tubular busbar is greater than or equal to 1.2 times the diameter of the tubular busbar.

[0055] In summary, the tubular busbar arrangement method of the application solves the problem of difficulty in predicting the actual length of the tubular busbar arranged manually, accurately predicts the length of the tubular busbar by arranging the tubular busbar on the PDMS platform, accurately presets the wall-penetrating position of the tubular busbar and the setting position of the support hanger, and has the characteristics of high consistency with reality, maximum reflection of engineering objects, and three-dimensional presentation of the mutual relationship and spatial distance of equipment, pipelines and civil engineering, etc. The technical effect of completely solving the old problem of design error and deviation from reality is achieved.

[0056] However, those skilled in the art should understand that various improvements can be made to the tubular busbar arrangement method provided by the application without departing from the content of the application. Therefore, the protection scope of the application should be determined by the content of the appended claims.

Claims

1. A method for arranging tubular busbars, characterized in that, The methods include, Multiple tubular busbars are arranged on the generator; The high-voltage switchgear room, high-voltage switchgear, zero-loss current limiting device room, zero-loss current limiting device, main transformer room, main transformer, generator room, and generator equipped with tubular busbars are displayed in full scale on the PDMS. The routing of the tubular busbar from the generator to the high-voltage switchgear is set, and the generator and the high-voltage switchgear are connected through the tubular busbar; the length of the tubular busbar between the generator and the high-voltage switchgear is determined; The location of the tubular busbar through the wall is determined on the shared wall between the high-voltage switchgear room and the zero-loss current limiting device room. The route of the tubular busbar from the high-voltage switchgear to the zero-loss current limiting device is set, and the high-voltage switchgear and the zero-loss current limiting device are connected through the tubular busbar. The length of the tubular busbar between the generator and the high-voltage switchgear is determined. The location of the tubular busbar through the wall is determined on the shared wall between the zero-loss current limiting device room and the main transformer room. The route of the tubular busbar from the zero-loss current limiting device to the main transformer is set. The tubular busbar is connected from the zero-loss current limiting device to the main transformer. The length of the tubular busbar between the zero-loss current limiting device and the main transformer is determined. The tubular busbars are arranged according to the following routes: from the generator to the high-voltage switchgear, from the high-voltage switchgear to the zero-loss current limiting device, and from the zero-loss current limiting device to the main transformer. The lengths of the tubular busbars between the generator and the high-voltage switchgear, between the generator and the high-voltage switchgear, and between the zero-loss current limiting device and the main transformer are also considered.

2. The method for arranging tubular busbars according to claim 1, characterized in that, When setting the route of the tubular busbar from the high-voltage switchgear to the zero-loss current limiting device, and connecting the high-voltage switchgear and the zero-loss current limiting device through the tubular busbar, the system also includes the support brackets for the tubular busbar.

3. The method for arranging tubular busbars according to claim 2, characterized in that, The support frame includes a GIS base frame and a pre-embedded foundation channel steel; the GIS base frame and the foundation channel steel are welded together.

4. The method for arranging tubular busbars according to claim 3, characterized in that, The embedded channel steel is reliably connected to the main grounding grid, which is composed of grounding wires, and the grounding wires are hot-dip galvanized flat steel pieces.

5. The method for arranging tubular busbars according to claim 3, characterized in that, The GIS base frame is reliably connected to the grounding wire of the main grounding grid, and the number of connection points between the GIS base frame and the grounding wire is greater than or equal to 4.

6. The method for arranging tubular busbars according to claim 1, characterized in that, The generator is connected to three tubular busbars.

7. The method for arranging tubular busbars according to claim 1, characterized in that, The diameter of the expansion joint adapted to the tubular busbar is ≥ 1.2 times the diameter of the tubular busbar.

8. A tubular busbar arrangement system, characterized in that, The system includes, The tubular busbar setting unit is used to arrange multiple tubular busbars on the generator; the high-voltage switchgear room, high-voltage switchgear, zero-loss current limiting device room, zero-loss current limiting device, main transformer room, main transformer, generator room and generator equipped with tubular busbars are displayed in full scale on the PDMS. The tubular busbar routing unit is used to set the routing of the tubular busbar from the generator to the high-voltage switchgear, connecting the generator and the high-voltage switchgear via the tubular busbar; determine the length of the tubular busbar between the generator and the high-voltage switchgear; determine the wall penetration position of the tubular busbar on the shared wall between the high-voltage switchgear room and the zero-loss current limiting device room, and set the routing of the tubular busbar from the high-voltage switchgear to the zero-loss current limiting device, connecting the high-voltage switchgear and the zero-loss current limiting device via the tubular busbar; determine the length of the tubular busbar between the generator and the high-voltage switchgear; determine the wall penetration position of the tubular busbar on the shared wall between the zero-loss current limiting device room and the main transformer room, and set the routing of the tubular busbar from the zero-loss current limiting device to the main transformer, connecting the tubular busbar from the zero-loss current limiting device to the main transformer via the tubular busbar; and determine the length of the tubular busbar between the zero-loss current limiting device and the main transformer. The arrangement unit is used to arrange the tubular busbars according to the routing of the tubular busbars from the generator to the high-voltage switchgear, the routing of the tubular busbars from the high-voltage switchgear to the zero-loss current limiting device, and the routing of the tubular busbars from the zero-loss current limiting device to the main transformer, as well as the lengths of the tubular busbars between the generator and the high-voltage switchgear, the tubular busbars between the generator and the high-voltage switchgear, and the tubular busbars between the zero-loss current limiting device and the main transformer.

9. The tubular busbar arrangement system according to claim 8, characterized in that, The generator is connected to three tubular busbars.

10. The tubular busbar arrangement system according to claim 8, characterized in that, The diameter of the expansion joint adapted to the tubular busbar is ≥ 1.2 times the diameter of the tubular busbar.

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