CN210579860U

CN210579860U - Channel structure of valve hall of converter station

Info

Publication number: CN210579860U
Application number: CN201921451635.8U
Authority: CN
Inventors: 冯琨; 余波; 何勇; 邓晓; 葛明; 李云忠; 李亚曦; 潘丽伊; 戴波
Original assignee: Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
Current assignee: Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-05-19
Anticipated expiration: 2029-09-03

Abstract

The utility model provides a current conversion station valve room channel structure, including total cable pit (1), first branch cable pit (2) and total water pipe ditch (10) and second branch water pipe ditch (12), total cable pit (1) ring converter valve tower (7) and circuit breaker (5) distribute, and total cable pit (1) is in the disconnection of entrance between converter valve tower (7) and circuit breaker (5) and forms disconnected department (21), total water pipe ditch (10) exit end runs through disconnected department (21); the first branch cable trench (2) and the second branch water pipe trench (12) are arranged on two opposite sides of the circuit breaker (5), the first branch cable trench (2) is communicated with the main cable trench (1), and the second branch water pipe trench (12) is communicated with the main water pipe trench (10). The utility model discloses can avoid water pipe ditch, cable pit to take place to overlap or alternately when laying well, reduce the buried depth and the section size of valve room channel effectively, have that valve room drainage is more smooth and easy, make things convenient for outstanding advantages such as site operation and maintenance.

Description

Channel structure of valve hall of converter station

Technical Field

The utility model belongs to the technical field of the design of current conversion station valve room channel and specifically relates to a current conversion station valve room channel structure that is used for flexible direct current conversion station's converter valve and circuit breaker is related to.

Background

When the existing direct current converter station is designed and built, cooling water pipes, cables and the like of a converter valve and a breaker are supported by a pipe frame erected on the ground, so that the cooling water pipes, heating and ventilation pipelines in a valve hall and a steel structure support are often crossed, and much inconvenience is caused to site construction and overhaul; meanwhile, the embedded depth of the ditch bottom can be increased at the intersection of a water pipe ditch and a cable ditch entering the valve hall, so that the sectional area of the ditch is increased, and the difficulty in draining at the ditch bottom is easily caused.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: aiming at the problems in the prior art, the channel structure of the valve hall of the converter station is provided, and the field construction and the overhaul are convenient.

The to-be-solved technical problem of the utility model adopts following technical scheme to realize: a channel structure of a converter station valve hall comprises a main cable trench, a main water pipe trench, a first branch cable trench and a second branch cable trench, wherein the main cable trench is distributed around a converter valve tower and a circuit breaker, the main cable trench is disconnected at an inlet between the converter valve tower and the circuit breaker to form a cut-off part, and an outlet end of the main water pipe trench penetrates through the cut-off part; first branch cable pit, second divide the conduit ditch to set up in the relative both sides of circuit breaker, and first branch cable pit and total cable pit intercommunication, second divide conduit ditch and total conduit ditch intercommunication.

Preferably, still include third minute cable pit and first minute conduit ditch, third minute cable pit, first minute conduit ditch set up in the relative both sides of converter valve tower, and third minute cable pit and total cable pit intercommunication, first minute conduit ditch and total conduit ditch intercommunication.

Preferably, the cable distribution device further comprises a second cable trench, and the second cable trench is communicated with the third cable trench.

Preferably, a vertical structure is formed between the second cable branch trench and the third cable branch trench.

Preferably, the water-saving device further comprises a second branch water pipe ditch which is communicated with the first branch water pipe ditch.

Preferably, a vertical structure is formed between the second branch water pipe ditch and the first branch water pipe ditch.

Preferably, the water supply device further comprises a first drainage pipe, and the first drainage pipe is communicated with the main cable trench and the main water pipe trench respectively.

Preferably, a water seal floor drain is arranged between the first drainage pipe and the main water pipe ditch.

Preferably, the water supply device further comprises a third water discharge pipe, and the third water discharge pipe is respectively communicated with the main cable trench and the main water pipe trench.

Preferably, a water seal floor drain is arranged between the third water drainage pipe and the main cable trench, or a water seal floor drain is arranged between the third water drainage pipe and the main cable trench.

Compared with the prior art, the beneficial effects of the utility model are that: the main cable trench is disconnected at an inlet between the converter valve tower and the circuit breaker to form a cut-off part, the outlet end of the main cable trench penetrates through the cut-off part, meanwhile, the first branch cable trench and the second branch cable trench are arranged on two opposite sides of the circuit breaker and communicated with the main cable trench, and the second branch cable trench and the main cable trench are communicated, so that the staggered arrangement of the water pipe trenches and the cable trenches in a valve hall can be realized, the overlapping or crossing of the water pipe trenches and the cable trenches during laying is avoided, and therefore, the burial depth and the section size of the channel in the valve hall are effectively reduced, the drainage of the valve hall is enabled to be smoother, and the field construction and maintenance are also facilitated.

Drawings

Fig. 1 is a schematic structural diagram of a channel structure of a valve hall of a converter station according to the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a partially enlarged view of B in fig. 1.

Part label name in the figure: 1-main cable trench, 2-first branch cable trench, 3-first drain pipe, 4-second drain pipe, 5-circuit breaker, 6-second branch cable trench, 7-converter valve tower, 8-third branch cable trench, 9-third drain pipe, 10-main cable trench, 11-first branch cable trench, 12-second branch cable trench, 13-first sump, 14-second sump, 15-third sump, 16-first branch cable trench, 17-first branch cable trench, 18-second branch cable trench, 19-second branch cable trench, 20-fourth sump, 21-break part, 22-water seal floor drain.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, 2, and 3, the channel structure of the converter station valve hall mainly includes a main cable trench 1, a first branch cable trench 2, a second branch cable trench 6, a third branch cable trench 8, a first branch cable trench 16, a second branch cable trench 18, a main water pipe trench 10, a first water diversion pipe trench 11, a second water diversion pipe trench 12, a first water diversion pipe trench 17, and a second water diversion pipe trench 19, wherein the main cable trench 1 is distributed around a converter valve tower 7 and a circuit breaker 5, and the main cable trench 1 is disconnected at an inlet between the converter valve tower 7 and the circuit breaker 5 to form a disconnection portion 21. The first branch cable trench 2 and the second branch water pipe trench 12 are arranged on two opposite sides of the circuit breaker 5, the second branch cable trench 6 is respectively arranged in parallel with the first branch cable trench 2 and the second branch water pipe trench 12, the third branch cable trench 8 and the first branch water pipe trench 11 are arranged on two opposite sides of the converter valve tower 7, the first branch cable trench 16 and the second branch cable trench 18 are respectively arranged between the adjacent converter valve towers 7, and the first branch cable trench 16 and the second branch cable trench 18 are respectively communicated with the third branch cable trench 8; the first cable dividing groove 2, the second cable dividing groove 6 and the third cable dividing groove 8 are communicated with the main cable groove 1 respectively.

The main water pipe ditch 10 is arranged between the converter valve tower 7 and the circuit breaker 5 in a U-shaped structure, and the outlet end of the main water pipe ditch 10 penetrates through the fracture part 21; the first branch water pipe ditch 17 and the second branch water pipe ditch 19 are respectively communicated with the first water dividing pipe ditch 11, and the first water dividing pipe ditch 11 and the second water dividing pipe ditch 12 are respectively communicated with the main water pipe ditch 10. In order to improve the compactness of the channel structure of the valve hall of the converter station and reduce the construction cost, a vertical structure is usually formed between the second branch cable trench 18 and the third branch cable trench 8, and a vertical structure is formed between the second branch water trench 19 and the first branch water trench 11.

In order to further improve the drainage capacity of the channel structure of the valve hall of the converter station, a first drainage pipe 3, a second drainage pipe 4 and a third drainage pipe 9 may be respectively arranged in the valve hall, wherein the first drainage pipe 3 is respectively communicated with the main cable trench 1 and the main water pipe trench 10, and the third drainage pipe 9 is respectively communicated with the main cable trench 1 and the main water pipe trench 10. A first water collecting pit 13 and a second water collecting pit 14 can be arranged in the main cable trench 1, a third water collecting pit 15 and a fourth water collecting pit 20 can be arranged in the main water pipe trench 10, and the second water discharging pipe 4 is arranged in the main cable trench 1 and is respectively communicated with the first water collecting pit 13 and the first water discharging pipe 3. The first drain pipe 3 and the third drain pipe 9 are both communicated with the outside of the valve hall, so that the contact between the valve hall and the outside atmosphere is reduced, and the positive effect on maintaining the micro-positive pressure of the valve hall is achieved.

As shown in fig. 2 and 3, a water seal floor drain 22 may be disposed between the first drain pipe 3 and the second sump 14 in the main conduit ditch 10, a water seal floor drain 22 may be disposed between the second drain pipe 4 and the first sump 13 in the main cable ditch 1, a water seal floor drain 22 may be disposed between the third drain pipe 9 and the fourth sump 20 in the main cable ditch 1, and a water seal floor drain 22 may be disposed between the third drain pipe 9 and the third sump 15 in the main conduit ditch 10. Through setting up water seal floor drain 22, can filter debris in time to guarantee the drainage unblocked.

Adopt the utility model discloses a converter station valve room channel structure can make the water pipe ditch and the cable pit staggered arrangement in the valve room to avoid water pipe ditch, cable pit to take place to overlap or alternately when laying, reduced the buried depth of valve room channel effectively, also reduced the section size of valve room channel, make the drainage in valve room more smooth and easy, also make things convenient for site operation and maintenance. In addition, the converter valve tower 7 and the internal cooling water pipelines of the circuit breaker 5 can be laid in the water pipe ditches of the valve hall, and the internal cooling water pipelines of the converter valve tower 7 and the circuit breaker 5 can share one pipe ditch according to the arrangement of the converter valve tower 7 and the circuit breaker 5 in the valve hall and then are laid in the respective pipe ditches respectively.

The above description is only exemplary of the present invention and should not be taken as limiting, and all changes, equivalents, and improvements made within the spirit and principles of the present invention should be understood as being included in the scope of the present invention.

Claims

1. The utility model provides a converter station valve room channel structure, includes total cable pit (1) and total water pipe ditch (10), its characterized in that: the main cable trench (1) is distributed around the converter valve tower (7) and the circuit breaker (5), the main cable trench (1) is disconnected at an inlet between the converter valve tower (7) and the circuit breaker (5) to form a cut-off part (21), and an outlet end of the main water pipe trench (10) penetrates through the cut-off part (21); first branch cable pit (2), second branch trench (12) set up in the relative both sides of circuit breaker (5), and first branch cable pit (2) and main cable pit (1) intercommunication, second branch trench (12) and main trench (10) intercommunication.

2. The converter station valve hall channel structure of claim 1, wherein: still include third minute cable pit (8) and first minute conduit ditch (11), third minute cable pit (8), first minute conduit ditch (11) set up the relative both sides at converter valve tower (7), and third minute cable pit (8) and total cable pit (1) intercommunication, first minute conduit ditch (11) and total conduit ditch (10) intercommunication.

3. The converter station valve hall channel structure of claim 2, wherein: the cable distribution device further comprises a second cable trench (18), wherein the second cable trench (18) is communicated with the third cable trench (8).

4. The converter station valve hall channel structure of claim 3, wherein: and a vertical structure is formed between the second branch cable trench (18) and the third branch cable trench (8).

5. The converter station valve hall channel structure of claim 2, wherein: the water distributor also comprises a second branch water pipe ditch (19), and the second branch water pipe ditch (19) is communicated with the first branch water pipe ditch (11).

6. The converter station valve hall channel structure of claim 5, wherein: and a vertical structure is formed between the second branch water pipe ditch (19) and the first branch water pipe ditch (11).

7. A converter station valve hall channel structure according to any of claims 1-6, characterized in that: still include first drain pipe (3), first drain pipe (3) communicate with total cable pit (1), total water pipe ditch (10) respectively.

8. The converter station valve hall channel structure of claim 7, wherein: a water seal floor drain (22) is arranged between the first drainage pipe (3) and the main water pipe ditch (10).

9. A converter station valve hall channel structure according to any of claims 1-6, characterized in that: the cable trench is characterized by further comprising a third water drainage pipe (9), wherein the third water drainage pipe (9) is communicated with the main cable trench (1) and the main water pipe trench (10) respectively.

10. The converter station valve hall channel structure of claim 9, wherein: and a water seal floor drain (22) is arranged between the third drain pipe (9) and the main cable trench (1), or a water seal floor drain (22) is arranged between the third drain pipe (9) and the main cable trench (10).