CN210884958U - Hoisting system of converter station valve room - Google Patents
Hoisting system of converter station valve room Download PDFInfo
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- CN210884958U CN210884958U CN201921088622.9U CN201921088622U CN210884958U CN 210884958 U CN210884958 U CN 210884958U CN 201921088622 U CN201921088622 U CN 201921088622U CN 210884958 U CN210884958 U CN 210884958U
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- crane
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- converter valve
- hoisting
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- 239000000725 suspension Substances 0.000 claims abstract description 39
- 239000012212 insulator Substances 0.000 description 15
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
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Abstract
The utility model discloses a hoist and mount system in converter station valve room, include: a suspended crane, a crane running rail; the suspension crane comprises an electric hoist, a hoisting running mechanism and a bridge; the crane running track is arranged right above the converter valve tower and is laid in the direction perpendicular to the converter valve bridge arm. Through implementing the utility model discloses enable hoist device and remove along 4 directions, reduce the track quantity that needs lay.
Description
Technical Field
The utility model relates to an electric power system transformer engineering construction equipment field especially relates to a hoist and mount system in converter station valve room.
Background
The flexible direct current transmission is a novel high-voltage direct current transmission technology which utilizes self-turn-off power electronic devices as electric energy conversion. Compared with the conventional direct current transmission which adopts a non-turn-off thyristor, the flexible direct current transmission is used as a new generation of direct current transmission technology, and has the advantages of high system reaction speed, good controllability, flexible operation mode and the like.
The direct current converter station is the most main component of the direct current transmission technology, and for the built flexible direct current converter station, due to the low voltage level, the small equipment size, the simple arrangement of the valve hall, the small size of the valve hall and the adoption of the installation and maintenance scheme of a monorail hoist crane for the valve tower. As shown in fig. 1, in a flexible dc converter station existing in China, a flexible dc transformer and a bridge arm reactor are arranged outdoors and extend into a valve hall through a wall bushing. The starting resistor is arranged on the valve side of the flexible direct current transformer, and the current measuring device between the bridge arm reactor and the transformer is in an outdoor vertical type. The converter valve in the valve hall is supported on the ground, no relevant electrical equipment is arranged above the valve tower, the installation and maintenance of the valve tower equipment adopt a hoisting scheme of a hoist crane, and a hoist crane track is arranged above the valve tower along the direction of a bridge arm of the converter valve.
However, in the existing hoisting scheme, the hoist crane rail is arranged above the valve tower along the direction of the converter valve bridge arm, and by adopting the scheme, on one hand, the hoist crane can only move along the direction of the converter valve bridge arm, the movement mode is limited, and on the other hand, the number of rails to be laid is large.
Disclosure of Invention
The embodiment of the utility model provides a hoist and mount system of converter station valve room, hoist device can follow 4 directions and remove, and the track quantity that needs adopt still less.
In order to achieve the above object, an embodiment of the utility model provides a hoist and mount system in converter station valve room includes: a suspended crane, a crane running rail; the suspension crane comprises an electric hoist, a hoisting running mechanism and a bridge; the crane running track is arranged right above the converter valve tower and is laid in the direction perpendicular to the converter valve bridge arm.
Further, the operating range of the lifting hook of the electric hoist is larger than or equal to the width of the converter valve tower.
Furthermore, the number of the suspension cranes and the number of the running tracks of the cranes are the same as the number of the valve towers in each converter valve bridge arm.
Furthermore, a tubular bus is suspended above the converter valve tower, and the tubular bus crosses over the converter valve tower in the converter valve bridge arm along the direction of the converter valve bridge arm; the height of the suspension crane from the ground is higher than that of the tubular bus from the ground.
Through implementing the utility model discloses an embodiment has following beneficial effect:
the embodiment of the utility model provides a hoist and mount system in converter station valve room adopts the hoist and mount demand when suspension crane satisfies the installation of converter valve tower or overhauls, and is specific: and paving the crane running track right above the converter valve tower along the direction vertical to the converter valve bridge arm. Compared with the conventional hoisting scheme, on one hand, in the conventional hoisting scheme, the hoisting device can only move along the direction of the converter valve bridge arm and cannot move along the direction perpendicular to the converter valve bridge arm, and the moving mode is limited. On the other hand, the crane operation tracks of the traditional hoisting device are arranged along the direction of bridge arms, and the number of tracks required to be arranged is large, for example, if 6 converter valve bridge arms are arranged in a valve hall and two converter valve towers are arranged in each converter valve bridge arm, 6 or 12 groups of crane operation tracks are required to be laid according to the arrangement mode of the traditional guide rails, and if power modules in the converter valve towers are arranged in a single row, 1 group of tracks are arranged above each bridge arm; if the power modules in the converter valve tower are arranged in a double-row mode, 2 groups of tracks are arranged above each bridge arm. And adopt the utility model provides a hoist and mount system, only need lay 2 groups of crane orbit can, the orbital quantity of laying of crane orbit that has significantly reduced.
Drawings
Fig. 1 is a schematic diagram of a valve hall of a flexible dc converter station in the prior art.
Fig. 2 is a schematic structural diagram of a hoisting system of a converter station valve hall according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a valve hall of a flexible dc converter station according to an embodiment of the present invention.
Fig. 4 is another schematic structural diagram of a valve hall of a flexible dc converter station according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a suspension crane according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment of the utility model also provides a hoisting system of the converter station valve hall, which comprises a suspension crane and a crane running track; the suspension crane comprises an electric hoist, a hoisting running mechanism and a bridge; the bridge frame horizontally moves along the crane running track through the crane running mechanism, and the electric hoist horizontally moves along the bridge frame; the crane running track is arranged right above the converter valve tower and is laid in the direction perpendicular to the converter valve bridge arm.
Specifically, as shown in fig. 2, in a preferred embodiment, 6 converter valve bridge arms are arranged in a converter station valve hall, and each converter valve bridge arm is provided with two converter valve towers; and the crane running track is laid above the converter valve tower along the direction vertical to the converter valve bridge arm. The suspension crane moves on the crane running track. In fig. 2, 12 converter valve towers in 6 converter valve bridge arms are divided into two rows, a group of crane running rails is laid right above each row of converter valve towers, a suspension crane is arranged on each group of crane running rails, and when the crane moves along the crane running rails, the 6 converter valve towers in the row can be overhauled and hoisted. Meanwhile, an electric hoist in the suspension type crane moves along the bridge frame to realize the movement along the bridge arm direction of the converter valve. Therefore, the movement in 4 directions, front, back, left and right, can be realized in the process of overhauling or hoisting. The converter valve legs in the valve hall of the converter station are schematically indicated in fig. 2 by two converter valve towers outlined by dashed boxes. The above-mentioned direction of the converter valve bridge arm refers to the direction from left to right in fig. 2 on the basis of fig. 2.
As shown in fig. 5, the suspension crane includes an electric hoist 501, a bridge frame 502, and a crane running mechanism 503, and the crane running mechanism 503 moves horizontally on a crane running track.
In a preferred embodiment, the operating range of the hook of the electric hoist is greater than or equal to the width of the converter valve tower. It should be noted that the width of the converter valve tower mentioned herein refers to the width of a single converter valve tower in the direction of the converter bridge arms. Therefore, the whole hoisting or overhauling range of the suspension crane can cover the whole width range of the valve tower.
In addition, in a preferred embodiment, when suspension insulators are arranged on the left side and the right side of the converter valve tower, the operation range of the lifting hook of the electric hoist needs to be smaller than the width of the two suspension insulators on the left side and the right side, so that the lifting hook of the electric hoist is prevented from touching the suspension insulators when moving left and right. This will be explained in detail later.
In a preferred embodiment, the number of said suspension cranes and the number of said crane travel tracks are the same as the number of valve towers in each of said converter valve bridge legs.
In a preferred embodiment, a tubular busbar is suspended above the converter valve towers, and the tubular busbar crosses a converter valve tower in a converter valve bridge arm along the direction of the converter valve bridge arm; the height of the suspension crane from the ground is higher than that of the tubular bus from the ground.
As shown in fig. 3 and fig. 4, the present invention is a schematic structural diagram of a valve hall of a flexible dc converter station according to an embodiment of the present invention.
In a flexible dc converter station valve hall as shown in fig. 3, each converter valve in the valve hall is composed of 6 bridge arms, each bridge arm is composed of 2 valve towers, and each valve tower is composed of a plurality of power modules in cascade connection. The valve tower is supported on the ground (see fig. 4). The power module in the general valve tower can adopt single-row and double-row designs. In order to reduce the size of the valve hall, the upper space of the valve hall is fully utilized, and the lightning arrester and the connecting pipe bus thereof are installed in a hanging manner. Is arranged right above the valve tower. The flexible direct current transformer valve side sleeve is connected with an isolating switch through a suspension insulator, the isolating switch is connected with a current measuring device through the suspension insulator, and the current measuring device is connected with alternating current inlet ends of upper and lower bridge arms of corresponding phases through the suspension insulator. And the power modules in the bridge arms are cascaded through copper bars. The bridge arm direct current side wiring terminal is connected with a bridge arm direct current measuring device through a suspension insulator, and the bridge arm direct current measuring device is connected with a wall bushing through the suspension insulator. For the upper bridge arm, the V-shaped lightning arrester is bridged at the bridge arm and two ends of the bridge arm direct current measuring device through suspension insulators.
Because the suspension insulator and the tubular bus are arranged above the valve tower along the direction of the bridge arm, the crane running track is laid in the direction vertical to the bridge arm. The large-span manufacturing difficulty of related hoisting equipment and the design difficulty of a steel structure of a valve hall are reduced while avoiding electrical equipment. Meanwhile, the suspension crane can flexibly move in the front, the back, the left and the right 4 directions, and is convenient and fast to hoist.
Preferably, the distance between the post insulators on the length (along the bridge arm direction) side of a single valve tower is selected as the span of the electric hoist hook of the suspension crane (i.e. the running range of the electric hoist 501 along the bridge arm direction), and at this time, the maximum running range of the electric hoist hook is smaller than the width of two suspension insulators, so that the suspension crane is ensured not to collide with suspended electric equipment when moving (as can be seen from fig. 4, the electric hoist 501 does not touch a V arrester or other equipment when moving on the bridge 502). Because only the tubular bus is arranged right above the valve tower, the bus is hoisted by the suspension insulator, the suspension insulator is arranged below the lower chord of the structure through the equipment hoisting beam, and the suspension crane is arranged below the lower chord, the required space height is far less than the length of the suspension insulator, so when the suspension crane runs perpendicular to the direction of the bridge arm, the collision with the suspended tubular bus or the suspended equipment is avoided. And when the number of the valve towers in a single bridge arm is 2, the number of the suspension cranes is 2.
Through implementing the utility model discloses an embodiment has following beneficial effect:
firstly, a suspension crane is adopted as hoisting equipment, and a crane running track is laid in the direction perpendicular to a bridge arm, so that the hoisting equipment can move in 4 directions, front, back, left and right, and the hoisting and overhauling convenience of valve tower equipment is improved;
secondly, the length (along the direction of a bridge arm) of a single valve tower is selected as the span of the suspension type crane, so that the crane can be effectively prevented from colliding with suspended electrical equipment, and the design difficulty of a steel structure of a valve hall is reduced;
and finally, the tracks of the hoisting equipment are arranged in a direction perpendicular to the bridge arm direction of the converter valve, the number of the tracks is small, the interference of relevant electrical equipment right above the valve tower is reduced, and the arrangement space is saved.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (4)
1. A hoist system in converter station valve room characterized in that includes: a suspended crane, a crane running rail; the suspension crane comprises an electric hoist, a hoisting running mechanism and a bridge; the crane running track is arranged right above the converter valve tower and is laid in a direction perpendicular to a converter valve bridge arm; the electric hoist is arranged on the bridge, the hoisting operation mechanism is connected with the bridge, and the hoisting operation mechanism slides through the crane operation track.
2. The hoisting system of a converter station valve hall according to claim 1, characterized in that the operating range of the hook of the electric block is greater than or equal to the width of the converter valve tower.
3. The hoisting system of a converter station valve hall according to claim 1, characterized in that the number of said overhead cranes and the number of said crane running tracks are the same as the number of valve towers in each of said converter valve leg.
4. The hoisting system of a converter station valve hall of claim 1 wherein a pipe bus is suspended above said converter valve towers, said pipe bus traversing a converter valve tower in a converter valve leg in the direction of said converter valve leg; the height of the suspension crane from the ground is higher than that of the tubular bus from the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921088622.9U CN210884958U (en) | 2019-07-10 | 2019-07-10 | Hoisting system of converter station valve room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921088622.9U CN210884958U (en) | 2019-07-10 | 2019-07-10 | Hoisting system of converter station valve room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210884958U true CN210884958U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921088622.9U Active CN210884958U (en) | 2019-07-10 | 2019-07-10 | Hoisting system of converter station valve room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210884958U (en) |
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2019
- 2019-07-10 CN CN201921088622.9U patent/CN210884958U/en active Active
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