Transverse sliding support for GIL pipeline bus

Abstract

The invention discloses a transverse sliding support for a GIL pipeline bus, which comprises a main support, the main support is connected with a foundation on the ground, a detachable cross arm arranged in the horizontal direction and a detachable stand column arranged in the longitudinal direction are respectively combined with the main support through fasteners, and the joint of the detachable cross arm and the detachable stand column is isolated through an insulating partition assembly. A supporting adjusting screw rod is locked on the detachable cross arm through a nut, the top of the supporting adjusting screw rod is screwed into a threaded hole of a sliding supporting plate, the top of the sliding supporting plate makes contact with a sliding block, and the sliding supporting plate and a sliding hoop are combined and locked through an upper vertical limiting clamping plate and a lower vertical limiting clamping plate; after the vertical clamping plate vertically limits the sliding hoop combination and the sliding supporting plate, when the GIL bus transversely slides, the sliding block and the sliding supporting plate are always kept in contact, and the sliding supporting plate can change along with the position of the GIL bus through the height change of the supporting adjusting screw rod.

Description

Technical Field

[0001] This invention relates to a transverse sliding support for GIL pipeline busbars, and particularly to the field of power transmission pipeline technology. Background Technology

[0002] With the rapid development of my country's economy, the demand for electricity is increasing. Large-scale hydropower stations and nuclear power plants have been built or are under construction. Due to terrain and environmental conditions or safety requirements, these power plants will use more GIL.

[0003] When using GIL (Gas Insulated Line) transmission pipelines over long distances, the axial deformation of the casing due to thermal expansion and contraction is significant. This stress poses a considerable threat to the safe operation of the GIL pipeline busbar. Angle-type expansion joints can compensate for this casing deformation, converting the axial displacement of the GIL on one side of a corner into lateral displacement on the other side. These angle-compensating expansion joints offer significant advantages over axial displacement compensation expansion joints; when internally inflated, they exert only a small load on the supports and foundation. However, conventional sliding supports typically only allow axial sliding between the GIL and the casing. To utilize angle-compensating expansion joints, a lateral sliding support for the GIL pipeline busbar must be used on the other side of the GIL corner. This support, connected to the GIL pipeline via sliding components, allows for lateral sliding to release the stress-induced deformation, which is crucial for the safe operation of the GIL. Summary of the Invention

[0004] This invention provides a transverse sliding support for GIL pipeline busbars to overcome the shortcomings of existing technologies where thermal expansion and contraction of GIL pipeline busbars pose a significant threat to the safety of GIL pipeline busbars.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: This invention discloses a transverse sliding support for GIL pipeline busbars, including a main support connected to the ground foundation. A detachable crossarm in the horizontal direction and a detachable column in the longitudinal direction are respectively combined with the main support by fasteners. The connection between the two is isolated by an insulating isolation component. A support adjustment screw is locked on the detachable crossarm by a nut, and its top is screwed into the threaded hole of the sliding support plate. The top of the sliding support plate contacts the slider. Two vertical limiting clamps lock the sliding support plate and the sliding clamp together.

[0006] Furthermore, the insulating barrier assembly is used to block eddy currents and prevent the formation of closed loops, and it includes an insulating bushing and insulating pads located on both sides thereon.

[0007] Furthermore, the inner side of the sliding clamp assembly has a rubber pad for resilient contact and binding with the outer wall of the GIL pipe, which includes an upper clamp and a lower clamp connected by fasteners.

[0008] Furthermore, the combination of the sliding support plate and the slider serves to support the weight of the GIL cylinder.

[0009] Furthermore, the lower clamp and the sliding support plate are locked together by a vertical limiting clamp to prevent the GIL cylinder from displacing excessively in the vertical direction, while also serving as a lateral limit position limiting function.

[0010] Furthermore, the slider is made of rigid polytetrafluoroethylene containing carbon powder, and the surface of the sliding support plate is made of stainless steel.

[0011] Furthermore, the main support is a detachable and modular type, and is welded from profiles.

[0012] The beneficial effects achieved by the present invention are as follows: after the vertical clamp plate vertically limits the sliding clamp assembly and the sliding support plate, the slider and the sliding support plate always remain in contact when the GIL busbar slides laterally. By adjusting the height of the support screw, the sliding support plate can follow the position change of the GIL busbar. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 This is a schematic diagram of the displacement of the GIL busbar sliding laterally according to the present invention; Figure 4 This is the present invention. Figure 1 Enlarged schematic diagram of section II.

[0014] In the diagram: 1. Main support; 2. Detachable crossbeam; 3. Detachable column; 4. Support adjustment screw; 5. Sliding support plate; 6. Slider; 7. Vertical limiting clamp; 8. Insulating partition assembly; 9. Sliding clamp assembly. Detailed Implementation

[0015] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0016] Example 1 like Figure 1-4As shown, a horizontal sliding support for a GIL pipeline busbar includes a main support 1, which is connected to the foundation of the ground. A detachable crossarm 2 is arranged horizontally and a detachable column 3 is arranged vertically, which are respectively combined with the main support 1 by fasteners. The connection between the two is isolated by an insulating isolation component 8. A support adjustment screw 4 is locked on the detachable crossarm 2 by a nut, and its top is screwed into the threaded hole of the sliding support plate 5. The top of the sliding support plate 5 contacts the slider 6. Two vertical limiting clamps 7 lock the sliding support plate 5 and the sliding clamp combination 9.

[0017] The insulating isolation assembly 8 is used to block eddy currents and prevent the formation of closed loops. It includes an insulating bushing and insulating pads located on both sides thereon.

[0018] The inner side of the sliding clamp assembly 9 has a rubber pad for tough contact and bonding with the outer wall of the GIL pipe, and includes an upper clamp and a lower clamp connected by fasteners.

[0019] The combination of sliding support plate 5 and slider 6 serves to support the weight of the GIL cylinder.

[0020] The lower clamp and sliding support plate 5 are locked together by a vertical limiting clamp 7 to prevent the GIL cylinder from displacing excessively in the vertical direction, while also serving as a lateral limit position limiting function.

[0021] The slider 6 is made of hard polytetrafluoroethylene containing carbon powder, and the surface of the sliding support plate 5 is made of stainless steel.

[0022] The main support 1 is a detachable and assembled type, which is welded from profiles.

[0023] Working process: The GIL busbar passes through the main support 1. The detachable crossarm 2 and detachable column 3 are isolated by the insulating isolation component 8 to prevent the formation of a closed loop that causes eddy currents. The support adjustment screw 4 adjusts the height of the sliding support plate 5 to adapt to changes in the center height of the GIL busbar caused by external factors. The vertical limit clamp 7 ensures the contact between the GIL busbar, the sliding support clamp 9 and the sliding support plate 5 and the slider 6, and at the same time plays a limit role in lateral displacement.

[0024] When the sliding clamp assembly 9 moves laterally, there is enough space on both sides to fully absorb the conversion of axial displacement on the other side of the GIL corner.

[0025] It should be noted that the above description 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 foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The terminology used in the description of this application is only for describing specific embodiments and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings indicate similar items, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0026] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0027] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

Claims

1. A lateral slide support for a GIL pipe bus, characterized by, The main support is connected with the ground foundation, and the detachable cross arm and the detachable vertical column arranged horizontally and longitudinally are combined with the main support through fasteners, respectively, and the connecting positions of the two are isolated through an insulation isolation component, a support adjusting screw is locked on the detachable cross arm through a nut, the top of the support adjusting screw is screwed into a threaded hole of a sliding support plate, the top of the sliding support plate is in contact with a sliding block, and two vertical limiting clamping plates lock the sliding support plate and a sliding hoop in combination.

2. The lateral sliding support for a GIL pipe bus of claim 1, wherein, The insulation isolation component is used for blocking eddy current and preventing the formation of a closed loop, and comprises an insulation bushing and insulation pads arranged on both sides of the insulation bushing, respectively.

3. The lateral slide support for a GIL pipe bus of claim 1, wherein, The sliding hoop combination comprises an upper hoop and a lower hoop connected through fasteners, and the inner side of the sliding hoop combination is provided with a rubber pad for flexible contact and binding with the outer wall of the GIL pipeline.

4. The lateral slide support for a GIL conduit bus of claim 1, wherein, The combination of the sliding support plate and the sliding block supports the weight of the GIL cylinder.

5. The lateral slide support for a GIL pipe bus of claim 3, wherein, The lower hoop and the sliding support plate are locked by the vertical limiting clamping plates to prevent excessive displacement of the GIL cylinder in the vertical direction, and simultaneously serve as a transverse limit position limiting function.

6. The lateral slide support for a GIL conduit bus of claim 1, wherein, The sliding block is made of hard polytetrafluoroethylene material containing carbon powder, and the surface of the sliding support plate is made of stainless steel material.

7. The lateral slide support for a GIL conduit bus of claim 1, wherein, The main support is a detachable assembly type and is welded from a profile.

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