Assembly type two-point supporting anti-vibration fan support for GIS chamber of converter station

Abstract

The utility model relates to the technical field of building equipment supports, in particular to an assembly type two-point supporting anti-vibration fan support for a GIS chamber of a converter station. The assembly type two-point supporting anti-vibration fan support for the GIS chamber of the converter station is convenient to install and beneficial to improving construction efficiency. A converter station GIS chamber assembly type two-point supporting anti-vibration fan support comprises a flange main beam, a main beam overhanging support, a secondary beam, a second connecting flange and the like, the flange main beam is welded to a steel beam flange, and the secondary beam is connected with the flange main beam through the second connecting flange and the main beam overhanging support. According to the utility model, by optimizing the arrangement mode of the main beam of the support, the probability of bending and twisting instability of the main beam is reduced; a reinforcing part of a traditional fan is omitted, so that the using amount of steel is reduced, and the problem that the fan bracket collides with the cable trough box is solved; all welding parts can be welded in a factory, so that the engineering amount of field welding is reduced, the engineering quality is improved, and the construction and installation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to building equipment support technical field especially relates to a converter station GIS room assembly type two point support anti-vibration fan support. BACKGROUND

[0002] With the advance of the construction of the extra-high voltage converter station and the iteration of the technology, the indoor GIS has gradually replaced the outdoor GIS to become the mainstream of the extra-high voltage converter station. However, unlike the outdoor GIS, the scheme of arranging the GIS in the room needs to consider the leakage problem of the sulfur hexafluoride gas. The sulfur hexafluoride gas is a toxic gas, and in view of the life safety of the later operation and maintenance personnel, a fan is often arranged in the GIS room to facilitate the timely removal of the toxic gas. There are two common GIS room fan arrangement schemes at present, namely the floor type and the support type. The floor type arrangement refers to arranging the fan directly on the raft foundation of the GIS equipment, and this mode is commonly seen in 500 kV GIS rooms. The support type arrangement is to place the fan on a support connected with a column, and this mode is commonly seen in 750 kV GIS rooms.

[0003] The conventional 750 kV GIS room fan support is usually composed of two parts, namely the main force part and the reinforcing part. The main force part is composed of a main beam supported at both ends on adjacent columns and two secondary beams fixed at one end on the main beam, and in order to prevent the secondary beams from losing stability, the two secondary beams are connected through four secondary secondary beams. The main force part is the part directly bearing the fan load of the support. In order to improve the bearing capacity of the fan support and prevent the main beam of the main force part from bending and torsional instability and avoid large deformation of the secondary beam, the main force part of the fan support needs to be reinforced and supported, that is, the reinforcing part of the support. One end of the diagonal brace of the reinforcing part is connected with the secondary beam of the main force part, and the other end is connected with a beam connected with the column at both ends, and in order to avoid the bending and torsional buckling of the main beam of the main force part and the main beam of the reinforcing part, the two main beams are connected together through two steel pipes. The conventional fan support is shown in Figures 1 to 3 .

[0004] The conventional fan support mainly has the following shortcomings: 1) the fan cover is often long, which leads to a long overhanging part (the secondary beam of the main force part and the diagonal brace of the reinforcing part) of the conventional support, affecting the appearance, and the overlong overhanging part will affect the operation of the crane; 2) the diagonal brace of the conventional support sometimes collides with the cable trough box support; 3) the support part of the conventional support is relatively complex, and the main beam of the conventional support is long, which consumes a large amount of steel; 4) there are many welding positions, the welding workload is large, and the installation is not convenient.

[0005] Therefore, a new type of 750kV GIS room fan support needs to be researched in order to reduce the occupied indoor space, avoid collision with the cable trough box, reduce the amount of steel material, and facilitate installation. In addition, the fan often generates vibration during operation, so the new type of fan support needs to consider the weakening of the vibration on its own bearing capacity. Based on this, the utility model provides a two-point support anti-vibration fan support for the assembly type of the GIS room of the converter station. The new type of fan support cancels the reinforcing part in the traditional fan support, solves the collision problem of the support and the cable trough box, reduces the amount of steel material, and facilitates installation, which is beneficial to improve the construction efficiency. Utility model content

[0006] In order to overcome the shortcomings of the existing fan support, the length of the fan cover is often long, which affects the appearance, the inclined support sometimes collides with the cable trough box support, and the support part is relatively complex, the utility model provides a two-point support anti-vibration fan support for the assembly type of the GIS room of the converter station, which can solve the collision problem of the support and the cable trough box, reduce the amount of steel material, and facilitate installation, which is beneficial to improve the construction efficiency.

[0007] The technical scheme of the utility model is: a two-point support anti-vibration fan support for the assembly type of the GIS room of the converter station, which comprises a column outrigger, a flange main beam, a web main beam, a main beam outrigger, a secondary beam, a stiffener, a first connecting flange, a second connecting flange and a connecting rod, the flange main beam is welded on the flange of the steel beam, the secondary beam is connected with the flange main beam through the second connecting flange and the main beam outrigger, the web main beam is connected with the web of the steel column through the first connecting flange and the column outrigger, and the connecting rod on the stiffened web main beam and the secondary beam and the stiffener form a cantilever structure.

[0008] Optionally, one end of the flange main beam and the web main beam is fixed to the same steel column, and the other end is in a free state.

[0009] Optionally, the web main beam is connected to the column outrigger welded on the web of the steel column in advance through the first connecting flange.

[0010] Optionally, the secondary beam is connected with the main beam outrigger welded on the flange main beam through the second connecting flange.

[0011] Optionally, the flange main beam is welded on the column flange.

[0012] Optionally, the connecting rod is welded on the secondary beam and the web main beam.

[0013] Optionally, the stiffener is welded on the flange of the steel column and the web.

[0014] Optionally, the first connecting flange and the second connecting flange are connected through anti-vibration bolts.

[0015] Compared with the traditional 750kV GIS room fan support, the utility model has the advantages that: the utility model reduces the probability of the main beam bending and torsion instability by optimizing the arrangement mode of the support main beam; the reinforcing part of the traditional fan is cancelled, the steel consumption is reduced, and the collision problem of the fan support and the cable groove box is avoided; all the welding parts can realize factory welding, the engineering quantity of the field welding is reduced, the engineering quality is improved, and the construction installation efficiency is increased. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is shown as the traditional 750kV GIS room fan support diagram.

[0017] Figure 2 It is shown as the traditional 750kV GIS room fan support first kind of section view.

[0018] Figure 3 It is shown as the traditional 750kV GIS room fan support second kind of section view.

[0019] Figure 4 It is shown as the assembly type two-point support anti-vibration fan support diagram.

[0020] Figure 5 It is shown as the assembly type two-point support anti-vibration fan support first kind of section view.

[0021] Figure 6 It is shown as the assembly type two-point support anti-vibration fan support second kind of section view.

[0022] In the figure: 1, GIS room column; 2, main force part main beam; 3, main force part secondary beam; 4, secondary beam lateral support; 5, main force part main beam and reinforcing part main beam connecting rod; 6, reinforcing part main beam; 7, inclined brace; 8, column overhanging support; 9, flange main beam; 10, web main beam; 11, main beam overhanging support; 12, secondary beam; 13, first connecting flange; 14, second connecting flange; 15, connecting rod; 16 stiffening rib.

[0023] The utility model will be further described below in combination with the drawings and examples.

[0024] Refer to Figure 4 , Figure 5 , Figure 6The utility model discloses a kind of two-point support anti-vibration machine supports of assembly type of GIS room of converter station, including column overhanging support 8, flange girder 9, web girder 10, girder overhanging support 11, secondary beam 12, stiffener 16, first connecting flange 13, second connecting flange 14 and connecting rod 15, flange girder 9 is welded on steel beam flange, secondary beam 12 is connected with flange girder 9 by second connecting flange 14 and girder overhanging support 11, web girder 10 is connected with steel column web by first connecting flange 13 and column overhanging support 8, connecting rod 15 on reinforced web girder 10 and secondary beam 12 and stiffener 16 form cantilever structure.

[0025] When using, flange girder 9 is welded on steel column flange in advance in factory, girder overhanging support 11 is welded on flange girder 9, column overhanging support 8 and stiffener 16 are welded on steel column web, connecting rod 15 is welded at both ends respectively on secondary beam 12 and web girder 10, second connecting flange 14 is welded respectively on secondary beam 2 and girder overhanging support 11, first connecting flange is welded on web girder 10 and column overhanging support 8.

[0026] After completing welding work, in order to transport conveniently, secondary beam 12 is connected with girder overhanging support 11 through second connecting flange 14, web girder 10 is connected with column overhanging support 8 through first connecting flange 13 in construction site.

[0027] In order to reduce the torque acting on girder, prevent the occurrence of bending-torsional instability, two girders of support are connected on flange and web of GIS room column respectively, in order to distinguish, they are called flange girder 9 and web girder 10 respectively.

[0028] In order to transport and install conveniently, girder overhanging support 11 is welded on flange girder 9, and secondary beam 12 is connected with girder overhanging support 11 through second connecting flange 14.

[0029] Meanwhile, considering that the vibration of the fan can cause the loosening of the bolts on the first connecting flange 13 and the second connecting flange 14, the first connecting flange 13 and the second connecting flange 14 of the new fan support adopt anti-loosening and anti-vibration bolts with double nuts and double washers.

[0030] It should be understood that the above description is for illustrative purposes only and is not meant to limit the present application. Those skilled in the art will understand that variations of the present application will fall within the scope of the claims herein.

Claims

1. A converter station GIS room assembled two-point support anti-wind machine support, comprising a GIS room column (1), a main beam (2) of a main force part, a secondary beam (3) of a main force part, a secondary beam lateral support (4), a main beam and a reinforcing part beam connecting rod (5) of a main force part, a reinforcing part beam (6) and a diagonal brace (7), characterized in that: The column outrigger (8), the flange girder (9), the web girder (10), the girder outrigger (11), the secondary beam (12), the stiffener (16), the first connecting flange (13), the second connecting flange (14) and the connecting rod (15) are further included, the flange girder (9) is welded on the flange of the steel beam, the secondary beam (12) is connected with the flange girder (9) through the second connecting flange (14) and the girder outrigger (11), the web girder (10) is connected with the web of the steel column through the first connecting flange (13) and the column outrigger (8), the connecting rod (15) and the stiffener (16) on the reinforced web girder (10) and the secondary beam (12) form a cantilever structure.

2. The assembled two-point support anti-wind machine support for the GIS room of a converter station according to claim 1, characterized in that: The flange girder (9) and the web girder (10) are both fixed on the same steel column at one end and are free at the other end.

3. The assembled two-point support anti-wind machine support for converter station GIS room according to claim 2, characterized in that: The web girder (10) is connected with the column outrigger (8) welded on the web of the steel column in advance through the first connecting flange (13).

4. The assembled two-point support anti-wind machine support for GIS room of converter station according to claim 3, characterized in that: The secondary beam (12) is connected with the girder outrigger (11) welded on the flange girder (9) through the second connecting flange (14).

5. The assembled two-point support anti-wind machine support for converter station GIS room according to claim 4, characterized in that: The flange girder (9) is welded on the flange of the column.

6. The assembled two-point support anti-wind machine support for converter station GIS room according to claim 5, characterized in that: The connecting rod (15) is welded on the secondary beam (12) and the web girder (10).

7. The assembled two-point support anti-wind machine support for converter station GIS room according to claim 6, characterized in that: The stiffener (16) is welded on the flange and the web of the steel column.

8. The assembled two-point support anti-wind machine support for GIS room of converter station according to claim 7, characterized in that: The first connecting flange (13) and the second connecting flange (14) are connected through the anti-vibration bolt.

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