阅读说明：本技术 一种柔性直流换流阀阀塔 (Flexible direct current converter valve tower ) 是由 胡四全 范彩云 杜玉格 肖晋 李华君 毛志云 焦洋洋 马俊超 张瑞昂 王彦博 关 于 2019-09-03 设计创作，主要内容包括：本发明涉及一种柔性直流换流阀阀塔,包括阀塔本体,底部固定设置有底部绝缘支撑,阀塔本体包括至少两层阀塔单元层,各阀塔单元层分别包括阀组件,各阀组件包括子模块和分支水管；阀塔本体还包括主水管和外接端子；柔性直流换流阀阀塔还包括用于接地的阀塔罩壳,阀塔罩壳罩设在所述阀塔本体外,阀塔罩壳上对应所述主水管、外接端子上分别设有过孔,所述阀塔罩壳包括可开启的检修门板。利用阀塔罩壳将阀塔本体与外界隔离,方便巡检人员直接进入阀厅内进行人工巡检,不需要再额外配置成本较高的自动巡检设备,进而可相对降低成本,而且,利用阀塔罩壳还可以起到防尘的功效。(The invention relates to a flexible direct-current converter valve tower which comprises a valve tower body, wherein the bottom of the valve tower body is fixedly provided with a bottom insulating support, the valve tower body comprises at least two valve tower unit layers, each valve tower unit layer comprises a valve assembly, and each valve assembly comprises a submodule and a branch water pipe; the valve tower body also comprises a main water pipe and an external terminal; the flexible direct-current converter valve tower further comprises a valve tower housing for grounding, the valve tower housing is covered outside the valve tower body, via holes are formed in the valve tower housing corresponding to the main water pipe and the external terminals respectively, and the valve tower housing comprises an openable access door panel. Utilize valve tower housing to keep apart valve tower body and external world, make things convenient for the personnel of patrolling and examining to directly get into to carry out the manual work and patrol and examine in the valve room, need not additionally to dispose the higher automatic equipment of patrolling and examining of cost again, and then but relative reduce cost, moreover, utilize valve tower housing can also play dirt-proof efficiency.)

1. A flexible dc converter valve tower comprising:

the valve tower comprises a valve tower body, wherein the bottom of the valve tower body is fixedly provided with a bottom insulating support for supporting and fixing the valve tower body on the corresponding foundation ground, the valve tower body comprises at least two layers of valve tower unit layers which are arranged at intervals along the vertical direction, each valve tower unit layer comprises at least two valve assemblies, and each valve assembly comprises a sub-module and a branch water pipe for cooling each sub-module;

the main water pipe is fixedly arranged on the valve tower body and is communicated with the branch water pipes of the valve assemblies;

the external terminal is fixedly arranged on the valve tower body and correspondingly connected with the sub-module;

the method is characterized in that: the flexible direct-current converter valve tower further comprises a valve tower housing for grounding, the valve tower housing is covered outside the valve tower body, via holes are formed in the valve tower housing corresponding to the main water pipe and the external terminals respectively, and the valve tower housing comprises an openable access door panel.

2. The flexible direct current converter valve tower of claim 1, wherein: and heat dissipation holes are formed in the valve tower housing.

3. The flexible direct current converter valve tower of claim 2, wherein: the heat dissipation holes are formed in the access door plate.

4. The flexible direct current converter valve tower of claim 1, 2 or 3, wherein: the valve tower housing comprises a frame framework fixedly arranged on the periphery of the valve body, and a fixing panel and the access door panel are arranged on the frame framework.

5. The flexible direct current converter valve tower of claim 4, wherein: the valve components on each valve tower unit layer are distributed along the left direction and the right direction at intervals, the external terminal comprises an alternating current side copper bar and a direct current side copper bar, the main water pipe, the alternating current side copper bar and the direct current side copper bar are correspondingly arranged at the end position of the valve tower body in the left direction and the right direction, and the access door plate is arranged on the front side face and/or the rear side face of the valve tower cover body.

6. The flexible direct current converter valve tower of claim 1, 2 or 3, wherein: and the access door plate is provided with an electromagnetic lock for locking the access door plate, and the electromagnetic lock is in a locking state when the flexible direct current converter valve tower is electrified and is in an unlocking state when the flexible direct current converter valve tower is not electrified.

7. The flexible direct current converter valve tower of claim 1, 2 or 3, wherein: and a door control switch is arranged corresponding to the access door panel and used for sending a signal to a corresponding controller to control the power-off of the valve tower of the flexible direct current converter valve when the access door panel is detected to be opened.

Technical Field

The invention relates to a flexible direct current converter valve tower.

Background

At present, a direct current distribution network has a series of advantages of improving electric capacity, reducing line loss, improving electric energy quality of a user side, isolating alternating current and direct current faults, flexibly and conveniently accessing renewable energy sources and the like. In the operation process of the flexible direct current distribution network engineering, the converter valve is a core part of the whole flexible direct current distribution network system, and plays a key role in connecting an alternating current system and a direct current system in function, so that the mutual conversion of alternating current energy and direct current energy is realized, and the good operation capacity of the converter valve is the most fundamental guarantee for the energy transmission of the whole system.

The present converter valve is because required quantity is extremely many, exists with the valve tower form mostly, and its structure is as the converter valve tower disclosed in the chinese utility model patent that the publication number is CN204761307U, including the valve tower unit layer of upper and lower layering arrangement, every valve tower unit layer all includes a plurality of valve subassemblies, and every valve subassembly includes a plurality of submodule pieces and branch water pipe respectively, and during the assembly, the branch water pipe of each valve subassembly corresponds and is communicate with main water pipe, and branch water pipe is connected in order to realize the cooling of submodule piece with the submodule piece. When the valve tower is used, the support insulator at the bottom of the valve tower is used for supporting the valve tower on the ground, and the valve tower is connected into an alternating current-direct current conversion system.

In fact, a general converter valve tower is mostly supported and arranged in a valve hall, a valve assembly on a valve body is directly exposed in the valve hall as a functional device, and due to the fact that the pressure on the valve assembly is usually high, in order to avoid accidents, a patrol person is not usually configured in the valve hall, but the patrol inspection is carried out on automatic patrol inspection equipment. The routing inspection mode needs to be provided with more induction detection devices, once a fault occurs in a single induction detection device, an accident is inevitably caused, the routing inspection equipment cost is generally higher in consideration of precision and reliability, for a converter valve with a higher level, the routing inspection equipment cost occupies a smaller proportion of the total cost and can be received, but for a converter valve with a lower voltage, the proportion of the routing inspection equipment cost occupying the total cost is larger, and the phase change increases the cost of the whole converter valve system.

Disclosure of Invention

The invention aims to provide a flexible direct-current converter valve tower, which solves the technical problem that automatic inspection equipment must be configured because a valve component of the converter valve tower in the prior art is directly exposed in a valve body.

In order to achieve the purpose, the technical scheme of the flexible direct current converter valve tower provided by the invention is as follows: a flexible dc converter valve tower comprising: the valve tower comprises a valve tower body, wherein the bottom of the valve tower body is fixedly provided with a bottom insulating support for supporting and fixing the valve tower body on the corresponding foundation ground, the valve tower body comprises at least two layers of valve tower unit layers which are arranged at intervals along the vertical direction, each valve tower unit layer comprises at least two valve assemblies, and each valve assembly comprises a sub-module and a branch water pipe for cooling each sub-module; the main water pipe is fixedly arranged on the valve tower body and is communicated with the branch water pipes of the valve assemblies; the external terminal is fixedly arranged on the valve tower body and correspondingly connected with the sub-module; the flexible direct-current converter valve tower further comprises a valve tower housing for grounding, the valve tower housing is covered outside the valve tower body, via holes are formed in the valve tower housing corresponding to the main water pipe and the external terminals respectively, and the valve tower housing comprises an openable access door panel.

The beneficial effects are that: compared with the valve tower directly exposed in the valve hall in the prior art, the valve tower housing is covered outside the valve tower body in the converter valve tower provided by the invention, the valve tower body is isolated from the outside by the valve tower housing, inspection personnel can conveniently and directly enter the valve hall for manual inspection, automatic inspection equipment with high cost does not need to be additionally configured, the cost can be relatively reduced, and the valve tower housing can also play a role of dust prevention. And, for guaranteeing normal use requirement, set up corresponding via hole on the valve tower housing in order to satisfy the normal installation requirement of main water pipe, external terminal on the valve tower body to set up access door board and satisfy normal maintenance requirement, make things convenient for the personnel of patrolling and examining in time to maintain the maintenance to the valve tower.

Furthermore, the valve tower housing is provided with heat dissipation holes.

The beneficial effects are that: the heat dissipation effect of the valve tower housing is improved by the heat dissipation holes, and the whole converter valve is improved.

Furthermore, the heat dissipation holes are formed in the access door panel.

Furthermore, the valve tower housing comprises a frame framework fixedly arranged on the periphery of the valve body, and a fixing panel and the access door panel are arranged on the frame framework.

The beneficial effects are that: the valve tower housing comprises a frame framework, a fixing panel and an overhauling panel, and is convenient to manufacture and assemble.

Further, the valve components on each valve tower unit layer are distributed along the left direction and the right direction at intervals, the external terminal comprises an alternating current side copper bar and a direct current side copper bar, the main water pipe, the alternating current side copper bar and the direct current side copper bar are correspondingly arranged at the end position of the valve tower body in the left direction and the right direction, and the access door plate is arranged on the front side face and/or the rear side face of the valve tower cover body.

The beneficial effects are that: the main water pipe, the alternating current side copper bar and the direct current side copper bar are reasonably arranged at the end position of the valve tower main body, and corresponding via holes are conveniently formed in the valve tower housing.

Furthermore, an electromagnetic lock for locking the access door panel is installed on the access door panel, and the electromagnetic lock is in a locking state when the flexible direct current converter valve tower is electrified and is in an unlocking state when the flexible direct current converter valve tower is not electrified.

And furthermore, a door control switch is arranged corresponding to the access door panel and used for sending a signal to a corresponding controller to control the power-off of the valve tower of the flexible direct current converter valve when the access door panel is detected to be opened.

Drawings

FIG. 1 is a schematic structural diagram of one embodiment of a flexible DC converter valve tower of the present invention;

FIG. 2 is a schematic structural view of a housing door panel of the valve tower of FIG. 1;

FIG. 3 is a schematic view of the electromagnetic lock on the door panel of the enclosure of FIG. 2;

FIG. 4 is a schematic structural view of a valve tower body of the valve tower of the converter valve shown in FIG. 1;

FIG. 5 is a schematic view of the construction of the single valve assembly of FIG. 4;

description of reference numerals:

the method comprises the following steps of 1-valve tower housing, 2-valve tower optical fiber and secondary line interface terminals, 3-via holes, 4-access door panels, 5-fixing panels, 7-electromagnetic locks, 8-heat dissipation holes, 9-locking bent plates, 10-valve tower bodies, 11-valve assemblies, 12-alternating current side busbars, 13-interlayer supporting insulators, 14-supporting beams, 15-bottom supporting insulators, 16-direct current side busbars, 17-main water pipes, 101-sub-modules, 102-assembly frames, 103-power module branch water pipes and 104-valve assembly branch water pipes.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 to 5, the converter valve tower in the embodiment includes a valve tower body 10 and a valve tower housing 1, the valve tower housing 1 is correspondingly covered outside the valve tower body 10 to play a role in dust prevention, and meanwhile, by using the way that the valve tower housing 1 encapsulates the valve tower body 10, inspection personnel can enter a valve hall for inspection in the valve tower operation state, so that the inspection personnel can conveniently monitor the electrified valve tower in real time.

The bottom of valve tower body 10 is fixed and is set up bottom insulation support, specifically bottom support insulator 15 to support valve tower body 10 and fix on corresponding basic ground. The valve tower body 10 comprises three valve tower unit layers which are arranged at intervals along the up-down direction, and each valve tower unit layer comprises three valve assemblies 11 which are sequentially arranged along the left-right direction. In practice, the adjacent valve tower unit layers are supported by interlayer supporting insulators 13, supporting beams 14 are fixedly mounted on the upper and lower ends of each interlayer supporting insulator 13, the corresponding valve assemblies 11 are fixedly mounted on the supporting beams 14, and the bottom insulating supports 15, the interlayer supporting insulators 13, the supporting beams 14 and the valve assemblies 11 form the main part of the valve tower body 10.

The structure of the valve assembly 11 is as shown in fig. 5, the valve assembly includes an assembly frame 102, seven sub-modules 101 are correspondingly mounted on the assembly frame 102 along the left-right direction, a valve assembly branch water pipe 104 extending along the left-right direction is further provided, and the valve assembly branch water pipe 104 is correspondingly communicated with the sub-modules 101 through a power module branch water pipe 103. No matter the valve component branch water pipe or the power module branch water pipe is the branch water pipe, respectively including the branch water pipe of intaking and the branch water pipe of play water that corresponds to when valve component branch water pipe and corresponding main water pipe 17 intercommunication, realize the water circulative cooling to submodule piece.

During assembly, the assembly frame 102 is fixedly assembled with the support beam 14, and corresponding to each valve tower unit layer, the valve assembly branch water pipes 104 are connected and communicated with the main water pipe 17, and the valve assembly branch water pipes are fixed on the sub-modules, so that the main water pipe 17 can be fixedly assembled on the valve tower body 10 correspondingly through the fixed assembly of the valve assembly branch water pipes of each valve tower unit layer. Of course, the main water pipe also correspondingly comprises a water inlet main water pipe and a water outlet main water pipe. For convenient arrangement, a water inlet main water pipe and a water outlet main water pipe are correspondingly arranged at one end of the left end part and the right end part of the valve tower body.

In addition, an external terminal is further fixedly arranged on the valve tower body 10, and the external terminal specifically comprises a direct current side copper bar 16, an alternating current side copper bar 12, and a valve tower optical fiber and secondary line interface terminal 2 for accessing the valve tower optical fiber and the secondary line, so as to meet the normal use of the valve tower body.

In order to realize dust prevention and isolation of the valve tower body, a valve tower housing 1 covers the outer side of the valve tower body 10, and the valve tower housing 1 is grounded to ensure safety. Meanwhile, in order to ensure the normal operation of the valve tower body, the valve tower housing 1 is provided with via holes 3 corresponding to the main water pipe 17, the external terminals and the like, and the valve tower housing 1 further comprises an openable access door panel 4 for convenient maintenance. Because the isolation of valve tower housing is used, when utilizing valve tower housing to separate valve tower body and the external world for the personnel of patrolling and examining can directly get into the valve room and carry out and closely patrol and examine, when needs maintain the maintenance, with valve tower body outage, open the access door board, can directly overhaul. Because whole valve tower housing is for being the cuboid structure on the whole, its long limit extends along left right direction, and the minor face extends along the fore-and-aft direction, for the convenience maintains the maintenance to each unit layer, is equipped with a plurality of access door plant 4 that arrange in proper order along left right direction on the leading flank and the trailing flank of valve tower housing 1 respectively.

In fact, for the valve tower body, the sub-modules are mainly cooled circularly by cooling water, and for further improving the heat dissipation effect, the heat dissipation holes 8 are formed in the valve tower housing 1. Specifically, because whole valve tower housing is concrete including setting firmly at valve body framework all around to and install fixed panel and access door board 4 on framework, for easy to assemble, set up louvre 8 on access door board 4 usually, can concentrate the preparation with access door board like this, simplify production technology.

In addition, it is equipped with the gate control switch to correspond access door board, the gate control switch can set up on valve tower housing 1 or set up on access door board, the gate control switch is used for detecting access door board's the open mode, when access door board opens, the auxiliary contact of gate control switch is with signal of telecommunication to background controller, there is corresponding background controller to carry out high-voltage power-off operation to whole valve tower, in order to avoid appearing electrified accident of opening and bringing, so, even if the access door board is opened to the mistake, can control the power-off of valve tower, in order to guarantee patrolling personnel's personal safety.

In fact, install electromagnetic lock 9 on access door panel 4, this electromagnetic lock is used for locking access door panel, and when flexible direct current converter valve tower was electrified, electrified display lamp was lighted, and simultaneously, electrified supplementary department was disconnected, and the electromagnetic lock coil loses electricity, and the electromagnetic lock is in the locking state, and access door panel can not open, prevents to go into high-tension apparatus with electricity by mistake. When the valve tower loses electricity, the electrified display lamp extinguishes or flickers, at the moment, the normally closed point of the electrified auxiliary contact is connected, the coil of the electromagnetic lock is electrified, the electromagnetic lock is unlocked and the access door plate can be normally opened.

When the whole converter valve tower is assembled, the bottom supporting insulator 15 is positioned and installed on the ground of a foundation according to a construction drawing, the supporting beam 14 is fixedly installed on the corresponding bottom supporting insulator 15, the preassembled valve assembly 11 is correspondingly hoisted on the supporting beam 14 through the electric hoist, the four valve assemblies on the first layer are hoisted, the interlayer supporting insulator 13 and the supporting beam 14 are sequentially installed, the four valve assemblies on the second layer are hoisted continuously, the interlayer supporting insulator 13 and the supporting beam 14 are installed continuously, and the four valve assemblies on the third layer are hoisted continuously. Corresponding to each valve tower unit layer, the valve component branch water pipes 104 of the four valve components are correspondingly connected, and the corresponding main water pipe 17 is fixedly connected with the valve component branch water pipes 104. Meanwhile, the external terminals are fixedly arranged on the valve tower main body correspondingly.

And finally, a frame body framework is arranged on the outer side of the valve tower main body, a fixing panel 5 and an access door panel 4 are arranged on the frame body framework to form a valve tower housing 1, and the corresponding via holes 3 in the valve tower housing 1 are utilized to meet the connection requirements of a main water pipe, an external terminal and the outside, so that the normal work of the whole valve tower is ensured.

In the converter valve tower provided by this embodiment, the valve tower housing covers the valve tower body to isolate the valve tower body from the outside, but the valve tower housing is also affected by the valve tower body, so that the valve tower housing is suitable for being applied to a valve tower with a low grade, such as a voltage grade of ± 10Kv and a current grade of 1000A.

The frame body framework can be formed by splicing and assembling, and the corresponding fixed panel and the access door panel are installed on the frame body framework after being assembled.

In this embodiment, the structure of the valve tower body is shown in fig. 4, and the structure of the valve assembly is shown in fig. 5, in other embodiments, the structure of the valve tower body and the valve assembly can adopt the valve tower and the valve assembly disclosed in the chinese utility model patent with the publication number CN 204761307U.

In this embodiment, the valve tower body is the cuboid structure, and the valve tower housing also is the cuboid structure, and in other embodiments, the valve tower main part if arrange for square or cylinder mode, the valve tower housing also is square or cylinder, correspond with the structure of valve tower body can.

In this embodiment, the louvre on the valve tower housing sets up on access door board, and in other embodiments, the louvre on the valve tower housing also can set up on other structures.