An elastic support insulator device for a flexible converter valve

Abstract

An embodiment of the present invention discloses an elastic support insulator device for a flexible converter valve, comprising an elastic support insulator, a diagonal insulator, and a converter valve assembly. The diagonal insulator has two ends connected to the upper end of one elastic support insulator and the lower end of another elastic support insulator, respectively. The converter valve assembly is mounted above the elastic support insulator. The elastic support insulator's mounting position on the converter valve assembly is adjustable. This invention effectively reduces vibration and impact of the assembly, facilitates accurate assembly during installation, mitigates the effects of long-term alternating offshore wave loads on the converter valve, improves assembly safety, and facilitates installation and positioning.

Description

Technical Field

[0001] The present invention relates to the technical field of flexible converter valves, and in particular to an elastic support insulator device for a flexible converter valve. Background Art

[0002] The core equipment of offshore UHVDC transmission projects is the converter valve. Currently, all offshore converter valves use flexible converter valves, which use a supported valve tower structure. The converter valve components are supported by connections with insulators. The structural safety of the converter valve is directly related to the key to the safe and reliable operation of the DC transmission system.

[0003] Offshore flexible converter valves are installed within the valve hall of an offshore platform. Unlike onshore converter valves, ocean wave loads impact the platform, generating alternating loads. These randomly generated wave loads are transmitted through the platform to the converter valves. Due to the random and irregular nature of these wave loads, the converter valves must withstand these additional loads in addition to their normal loads. Currently, flexible converter valves utilize composite insulator structures to support and withstand these loads. This structure requires increased insulator strength and deflection to withstand these additional loads. Furthermore, due to machining errors and manufacturing errors in the platform foundation, the insulators often require level and height adjustments during installation. Conventional adjustments, performed using a crane and by adding shims, are inconvenient and time-consuming. Any deviations in the installation require rework, impacting the construction schedule and cost. Summary of the Invention

[0004] The object of the present invention is to provide an elastic support insulator device for a flexible converter valve, which is used to solve at least one of the above-mentioned technical problems. It can effectively reduce the vibration and impact of the component, which is conducive to ensuring the accuracy of component installation during the installation process, meet the impact of long-term alternating loads of offshore wave loads on the converter valve, improve the safety of the component and is more conducive to installation and positioning.

[0005] The embodiment of the present invention is achieved as follows:

[0006] An elastic support insulator device for a flexible converter valve comprises an elastic support insulator 1, a diagonal insulator 2 and a converter valve assembly 3.

[0007] The two ends of the oblique-pull insulator 2 are respectively connected to the upper end of one elastic support insulator 1 and the lower end of another elastic support insulator 1 .

[0008] The converter valve assembly 3 is installed above the elastic support insulator 1 .

[0009] The installation position of the elastic support insulator 1 on the converter valve assembly 3 is adjustable.

[0010] In a preferred embodiment of the present invention, the elastic support insulator 1 of the elastic support insulator device for the flexible converter valve includes a base 4, a post insulator 5, a transfer block 6 and an elastic support 7.

[0011] The base 4 is connected to the foundation.

[0012] The post insulator 5 is a composite insulator and is installed above the base 4 .

[0013] The adapter block 6 is mounted on top of the post insulator 5 .

[0014] The elastic support 7 is installed above the adapter block 6 .

[0015] In a preferred embodiment of the present invention, the adapter block 6 of the elastic support insulator device for the flexible converter valve includes an upper flange plate 601 , a support plate 602 and a lower flange plate 603 .

[0016] The support plate 602 is supported between the upper flange plate 601 and the lower flange plate 603 .

[0017] The support plate 602 is provided with screw holes for connecting the oblique insulator 2 .

[0018] Its technical effect is: being used for adjustment and installation.

[0019] In a preferred embodiment of the present invention, a first set of mounting plates is provided around the upper flange plate 601 of the elastic support insulator device for the flexible converter valve, and is connected to the elastic support 7 through the first set of mounting plates.

[0020] The support plate 602 is in a symmetrical cross-rib shape.

[0021] In a preferred embodiment of the present invention, the elastic support 7 of the elastic support insulator device for the flexible converter valve includes a base 8, an elastic sleeve 9, an adjustable top cover 10 and a reinforcement sleeve 11.

[0022] The base 8 is provided with a cylindrical support, and the reinforcement sleeve 11 is installed on the cylindrical support of the base 8 .

[0023] The elastic sleeve 9 is mounted on the reinforcing sleeve 11 .

[0024] The outer surface of the elastic sleeve 9 forms a ridge-shaped groove.

[0025] The adjustable top cover 10 is arranged above the elastic sleeve 9 and the reinforcement sleeve 11 and is threadedly connected to the cylindrical support of the base 8 .

[0026] The technical effect is that the design of the elastic sleeve 9 is more conducive to absorbing impact stress and alternating loads; the adjustable top cover 10 is threadedly connected to the base 8, and the height can be adjusted by adjusting the bolts to achieve the adjustment of the horizontal X, Y and height dimensions of the elastic support insulator 1.

[0027] In a preferred embodiment of the present invention, a second set of mounting plates is provided around the base 8 of the elastic support insulator device for the flexible converter valve, and is connected to the adapter block 6 through the second set of mounting plates.

[0028] In a preferred embodiment of the present invention, the elastic sleeve 9 of the elastic support insulator device for the flexible converter valve is made of rubber.

[0029] The base 8 , the cylindrical support and the adjustable top cover 10 are made of metal.

[0030] In a preferred embodiment of the present invention, the post insulator 5 of the elastic support insulator device for the flexible converter valve includes a post flange 501 , a post core rod 502 and a post shed 503 .

[0031] The support shed 503 is installed on the support core rod 502 .

[0032] The support flange 501 includes an upper support flange and a lower support flange, which are respectively installed at the upper and lower ends of the support core rod 502 to connect the adapter block 6 and the base 4.

[0033] In a preferred embodiment of the present invention, the oblique-stayed insulator 2 of the elastic support insulator device for the flexible converter valve includes a transfer block connection end 201 , a support rod 203 and a base connection end 202 .

[0034] The adapter block connecting end 201 and the base connecting end 202 are respectively arranged at two ends of the support rod 203 .

[0035] The adapter block connection end 201 is connected to the adapter block 6 .

[0036] The base connection end 202 is connected to the base 4 .

[0037] The technical effect thereof is that the length of the oblique-pull insulator 2 can be adjusted, and it can be tightened after installation to enhance the seismic performance of the entire insulator device.

[0038] In a preferred embodiment of the present invention, the adapter block connection terminal 201 and the base connection terminal 202 of the elastic support insulator device for the flexible converter valve are made of metal.

[0039] The support rod 203 is made of composite material.

[0040] Its technical effect is to improve the stability of earthquake resistance.

[0041] The beneficial effects of the embodiments of the present invention are:

[0042] The present invention discloses an elastic support insulator device for a flexible converter valve, which consists of a base 4, a support insulator 5, a transfer block 6, a diagonal insulator 2, and an elastic support insulator 1. The base 4 is used to connect to the foundation platform, the support insulator 5 is used to support the valve tower, and the diagonal insulator 2 can ensure the stability of the valve tower and enhance the seismic performance of the valve tower. The elastic support insulator 1 is used to connect the component and the insulator. Due to the irregularity of ocean wave loads, the force transmitted to the component is also irregular. The elastic support can effectively reduce the vibration and impact of the component. The elastic support can also be adjusted in the horizontal and vertical directions, which is more conducive to ensuring the accuracy of component installation during the installation process.

[0043] The elastic support insulator device is suitable for offshore flexible DC converter valves, meeting the impact of long-term alternating loads of offshore wave loads on converter valves, improving component safety and being more conducive to installation and positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0045] Figure 1 This is a schematic diagram of the overall structure of the elastic support insulator device for the flexible converter valve of the present invention;

[0046] Figure 2 This is a schematic diagram of the three-dimensional structure of the elastic support insulator device for the flexible converter valve of the present invention;

[0047] Figure 3 This is a schematic structural diagram of the elastic support insulator of the present invention;

[0048] Figure 4 This is a schematic diagram of the base structure of the present invention;

[0049] Figure 5 Schematic diagram of the top view of the base of the present invention;

[0050] Figure 6 This is a schematic structural diagram of a support insulator according to the present invention;

[0051] Figure 7 This is a schematic diagram of the structure of the adapter block of the present invention;

[0052] Figure 8 This is a schematic side view of the structure of the adapter block of the present invention;

[0053] Figure 9 This is a schematic diagram of the top view of the adapter block of the present invention;

[0054] Figure 10 This is a schematic diagram of the elastic support structure of the present invention;

[0055] Figure 11 for Figure 10 Schematic diagram of the cross-section structure along line AA;

[0056] Figure 12 This is a schematic diagram of the elastic support three-dimensional structure of the present invention;

[0057] Figure 13 This is a schematic structural diagram of the oblique-pull insulator of the present invention.

[0058] In the figure: 1-elastic support insulator; 2-slant-stayed insulator; 201-adapter block connecting end; 202-base connecting end; 203-support rod; 3-converter valve assembly; 4-base; 5-pillar insulator; 501-pillar flange; 502-pillar core rod; 503-pillar shed; 6-adapter block; 601-upper flange plate; 602-support plate; 603-lower flange plate; 7-elastic support; 8-base; 9-elastic sleeve; 10-adjustable top cover; 11-reinforcement sleeve. DETAILED DESCRIPTION

[0059] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0060] Please refer to Figures 1 to 13 An embodiment of the present invention provides an elastic support insulator device for a flexible converter valve, which includes an elastic support insulator 1, a diagonal insulator 2 and a converter valve assembly 3.

[0061] The two ends of the oblique-pull insulator 2 are respectively connected to the upper end of one elastic support insulator 1 and the lower end of another elastic support insulator 1 .

[0062] The converter valve assembly 3 is installed above the elastic support insulator 1 .

[0063] The installation position of the elastic support insulator 1 on the converter valve assembly 3 is adjustable.

[0064] In a preferred embodiment of the present invention, the elastic support insulator 1 of the elastic support insulator device for the flexible converter valve includes a base 4, a post insulator 5, a transfer block 6 and an elastic support 7.

[0065] The base 4 is connected to the foundation.

[0066] The base 4 is fixedly connected to the foundation by embedded bolts or fixed by welding.

[0067] The base 4 is made of medium carbon cast steel.

[0068] The post insulator 5 is a composite insulator and is installed above the base 4 .

[0069] The composite insulator adopts an umbrella skirt structure to increase the electrical creepage distance.

[0070] The adapter block 6 is mounted on top of the post insulator 5 .

[0071] The elastic support 7 is installed above the adapter block 6 .

[0072] In a preferred embodiment of the present invention, the adapter block 6 of the elastic support insulator device for the flexible converter valve includes an upper flange plate 601 , a support plate 602 and a lower flange plate 603 .

[0073] The support plate 602 is supported between the upper flange plate 601 and the lower flange plate 603 .

[0074] The support plate 602 is provided with screw holes for connecting the oblique insulator 2 .

[0075] Its technical effect is: being used for adjustment and installation.

[0076] In a preferred embodiment of the present invention, a first set of mounting plates is provided around the upper flange plate 601 of the elastic support insulator device for the flexible converter valve, and is connected to the elastic support 7 through the first set of mounting plates.

[0077] The support plate 602 is in a symmetrical cross-rib shape.

[0078] In a preferred embodiment of the present invention, the elastic support 7 of the elastic support insulator device for the flexible converter valve includes a base 8, an elastic sleeve 9, an adjustable top cover 10 and a reinforcement sleeve 11.

[0079] The base 8 is provided with a cylindrical support, and the reinforcement sleeve 11 is installed on the cylindrical support of the base 8 .

[0080] The reinforcement sleeve 11 is installed on the cylindrical support of the base 8 in a tight fit manner, and the bottom end is fixed by bolts.

[0081] The elastic sleeve 9 is mounted on the reinforcing sleeve 11 .

[0082] The outer surface of the elastic sleeve 9 forms a ridge-shaped groove.

[0083] The elastic sleeve 9 is made of ethylene propylene rubber EPM / EPDM, which has excellent electrical insulation, chemical resistance, impact elasticity, weather resistance and aging resistance.

[0084] The adjustable top cover 10 is arranged above the elastic sleeve 9 and the reinforcement sleeve 11 and is threadedly connected to the cylindrical support of the base 8 .

[0085] The technical effect is that the design of the elastic sleeve 9 is more conducive to absorbing impact stress and alternating loads; the adjustable top cover 10 is threadedly connected to the base 8, and the height can be adjusted by adjusting the bolts to achieve the adjustment of the horizontal X, Y and height dimensions of the elastic support insulator 1.

[0086] In a preferred embodiment of the present invention, a second set of mounting plates is provided around the base 8 of the elastic support insulator device for the flexible converter valve, and is connected to the adapter block 6 through the second set of mounting plates.

[0087] In a preferred embodiment of the present invention, the elastic sleeve 9 of the elastic support insulator device for the flexible converter valve is made of rubber.

[0088] The base 8 , the cylindrical support and the adjustable top cover 10 are made of metal.

[0089] The rubber and metal materials are fixed by gluing.

[0090] In a preferred embodiment of the present invention, the post insulator 5 of the elastic support insulator device for the flexible converter valve includes a post flange 501 , a post core rod 502 and a post shed 503 .

[0091] The support shed 503 is installed on the support core rod 502 .

[0092] The support flange 501 includes an upper support flange and a lower support flange, which are respectively installed at the upper and lower ends of the support core rod 502 to connect the adapter block 6 and the base 4.

[0093] In a preferred embodiment of the present invention, the oblique-stayed insulator 2 of the elastic support insulator device for the flexible converter valve includes a transfer block connection end 201 , a support rod 203 and a base connection end 202 .

[0094] The adapter block connecting end 201 and the base connecting end 202 are respectively arranged at two ends of the support rod 203 .

[0095] The adapter block connection end 201 is connected to the adapter block 6 .

[0096] The base connection end 202 is connected to the base 4 .

[0097] The technical effect thereof is that the length of the oblique-pull insulator 2 can be adjusted, and it can be tightened after installation to enhance the seismic performance of the entire insulator device.

[0098] In a preferred embodiment of the present invention, the adapter block connection terminal 201 and the base connection terminal 202 of the elastic support insulator device for the flexible converter valve are made of metal.

[0099] The support rod 203 is made of composite material.

[0100] Its technical effect is to improve the stability of earthquake resistance.

[0101] The embodiment of the present invention is intended to protect an elastic support insulator device for a flexible converter valve, and has the following effects:

[0102] The present invention can effectively reduce the vibration and impact of the components, is conducive to ensuring the accuracy of component installation during the installation process, meets the impact of long-term alternating loads of offshore wave loads on the converter valve, improves component safety and is more conducive to installation positioning.

[0103] It should be understood that the above-described specific embodiments of the present invention are merely illustrative or illustrative of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included within the scope of protection of the present invention. In addition, the appended claims are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. An elastic support insulator device for a flexible converter valve, characterized in that: It comprises an elastic support insulator (1), a diagonal insulator (2) and a converter valve assembly (3); The two ends of the oblique-pull insulator (2) are respectively connected to the upper end of one elastic support insulator (1) and the lower end of another elastic support insulator (1); The converter valve assembly (3) is installed above the elastic support insulator (1); The installation position of the elastic support insulator (1) on the converter valve assembly (3) is adjustable. The elastic support insulator (1) comprises an elastic support insulator base (4), a post insulator (5), a transfer block (6) and an elastic support (7). The elastic support (7) comprises an elastic support base (8), an elastic sleeve (9), an adjustable top cover (10) and a reinforcement sleeve (11); a cylindrical support is provided on the elastic support base (8), and the reinforcement sleeve (11) is installed on the cylindrical support of the elastic support base (8); the elastic sleeve (9) is installed on the reinforcement sleeve (11); a ridge-shaped groove is formed on the outer surface of the elastic sleeve (9); the adjustable top cover (10) is arranged above the elastic sleeve (9) and the reinforcement sleeve (11), and is threadedly connected to the cylindrical support of the elastic support base (8).

2. The elastic support insulator device for a flexible converter valve according to claim 1, characterized in that: The base (4) of the elastic support insulator is connected to the foundation; The post insulator (5) is a composite insulator and is installed above the base (4) of the elastic support insulator; The adapter block (6) is mounted on the top of the post insulator (5); The elastic support (7) is installed above the adapter block (6).

3. The elastic support insulator device for a flexible converter valve according to claim 2, characterized in that: The adapter block (6) comprises an upper flange plate (601), a support plate (602) and a lower flange plate (603); The support plate (602) is supported between the upper flange plate (601) and the lower flange plate (603); The support plate (602) is provided with screw holes for connecting the oblique insulator (2).

4. The elastic support insulator device for a flexible converter valve according to claim 3, characterized in that: A first set of mounting plates is provided around the upper flange plate (601), and is connected to the elastic support (7) via the first set of mounting plates; The support plate (602) is in a symmetrical cross-rib shape.

5. The elastic support insulator device for a flexible converter valve according to claim 1, characterized in that: A second set of mounting plates is provided around the elastically supported base (8), and is connected to the adapter block (6) via the second set of mounting plates.

6. The elastic support insulator device for a flexible converter valve according to claim 1, characterized in that: The elastic sleeve (9) is made of rubber; The elastically supported base (8), the cylindrical support and the adjustable top cover (10) are made of metal.

7. The elastic support insulator device for a flexible converter valve according to claim 2, characterized in that: The post insulator (5) comprises a post flange (501), a post core rod (502) and a post shed (503); The pillar shed (503) is mounted on the pillar core rod (502); The support flange (501) comprises an upper support flange and a lower support flange, which are respectively mounted on the upper and lower ends of the support core rod (502) and connect the adapter block (6) and the base (4) of the elastic support insulator.

8. The elastic support insulator device for a flexible converter valve according to claim 2, characterized in that: The oblique-pull insulator (2) comprises a transfer block connection end (201), a support rod (203) and a base connection end (202); The adapter block connecting end (201) and the base connecting end (202) are respectively arranged at two ends of the support rod (203); The adapter block connection end (201) is connected to the adapter block (6); The base connection end (202) is connected to the base (4) of the elastic support insulator.

9. The elastic support insulator device for a flexible converter valve according to claim 8, characterized in that: The adapter block connecting end (201) and the base connecting end (202) are made of metal; The support rod (203) is made of composite material.

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