阅读说明：本技术 一种城轨云平台机房矩阵式防雷接地系统及其接入方法 (Matrix type lightning protection grounding system of urban rail cloud platform machine room and access method thereof ) 是由 刘占英 杨保成 耿高鹏 伍绍红 王伟鹏 周诚 向锋 宋全龙 闫振宇 张文 于 2020-07-20 设计创作，主要内容包括：本发明属于机房防雷接地技术领域,尤其涉及一种城轨云平台机房矩阵式防雷接地系统及其接入方法,所述方法包括所述用电设备通过接地线缆等电位且环形接入矩阵式接地体网络,本发明解决了现有技术存在由于接地点不一致和工艺复杂,从而导致接地效果越差以及接地不稳定的问题,具有保证接地整体可靠,避免结构对接地效果影响,并且简化并提高了系统的稳定性的有益技术效果。(The invention belongs to the technical field of machine room lightning protection grounding, and particularly relates to a matrix type lightning protection grounding system for an urban rail cloud platform machine room and an access method thereof.)

1. The utility model provides a city rail cloud platform computer lab matrix lightning protection ground system which characterized in that, consumer including the computer lab, consumer passes through the equipotential of ground connection cable and the annular inserts matrix grounding body network.

2. The matrix lightning protection grounding system for the urban rail cloud platform machine room according to claim 1, wherein the grounding cable comprises two grounding cables with a wire diameter of 10mm, and any one of the two grounding cables is a fault backup cable.

3. The matrix lightning protection grounding system for the urban rail cloud platform machine room according to claim 1, wherein the matrix grounding body network is built by using copper strips, the copper strips are preferably 30x4mm copper strips, and the built matrix grounding body network is supported by a frame.

4. The matrix lightning protection grounding system for the urban rail cloud platform machine room according to claim 3, wherein the crossing position of the copper strip is fixed by welding and a phi 10 insulator, and the copper strip fixes the grounding cable by a galvanized bolt.

5. The matrix lightning protection grounding system for the urban rail cloud platform machine room according to claim 1, wherein the electric devices comprise weak current devices, and the weak current devices are connected into the matrix grounding body network through WCE weak current busbar rings of corresponding device terminal boxes.

6. The matrix lightning protection grounding system of the urban rail cloud platform machine room according to claim 1, wherein the corresponding grounding terminal boxes in the machine room and other equipment rooms are respectively connected with the corresponding WCE weak current busbar connected with the matrix grounding body network through 95mm grounding cables.

7. The matrix lightning protection grounding system for the urban rail cloud platform machine room according to claim 1, wherein the resistance to ground of each electric device in the machine room is less than 0.2 Ω.

8. The matrix lightning protection grounding system for the urban rail cloud platform machine room according to claim 1, wherein a grounding body network is directly connected to the lower portion of the cabinet of the electric equipment.

9. An access method of a matrix type lightning protection grounding system of an urban rail cloud platform machine room is characterized by comprising the following steps:

building a matrix type grounding body network of the lightning protection grounding system according to the claims 1-8 through a copper strip;

fixing the copper strip cross position on the built matrix type grounding body network;

the built matrix type grounding body network is used for fixing a grounding cable led out by electric equipment in an equipotential and annular mode;

finally, the lightning protection grounding system as claimed in claim 1-8 is formed.

10. The urban rail cloud platform computer room matrix type lightning protection grounding system according to claim 1, wherein the access method further comprises:

the copper strip crossing position of the built matrix type grounding body network is fixed through welding and an insulator;

and (4) fixing the grounding cable led out by the electric equipment on the built matrix grounding body network in an annular manner through the equipotential galvanized bolts.

Technical Field

The invention belongs to the technical field of machine room lightning protection grounding, and particularly relates to an urban rail cloud platform machine room matrix type lightning protection grounding system and an access method thereof.

Background

The urban rail cloud platform integrates resources of all stations to form a control center cloud platform system, centralized operation and maintenance management is used, service flows and operation specifications are unified, operation and maintenance efficiency is improved, equipment maintenance difficulty is reduced, and a direction is provided for next-step development of the whole rail transit;

as shown in fig. 6, the central machine room of the urban rail cloud platform includes a safety production network, such as a signal-bearing ATS system, an automatic fare collection system, a comprehensive monitoring system, an access control system, a passenger information system, a public service telephone system, and a communication alarm system; external service networks, such as a mail bearing system, an external website, and a mobile phone APP platform service of an Internet ticket purchasing subsystem; an internal management network, such as 3 service networks of asset management integration, operation integration platform, cooperative office integration platform and the like, totaling 132 cabinets;

as shown in fig. 7, the cloud platform disaster recovery center provides resources such as computation, network, storage, and security for the secure production network, provides storage resources for the external service network, provides storage resources for the internal management network, and totals 44 cabinets;

as shown in fig. 5, the cloud platform is successfully put into use, the load-bearing cloud service is used as a center where a brain of the cloud platform exists, and the smooth, safe and stable operation of the disaster recovery center cloud affects the whole cloud platform system, a cloud platform center machine room and a disaster recovery center machine room are built in a data center mode, and the data center comprises 5 auxiliary systems of the following weak current engineering, decoration engineering, fire engineering, air conditioning engineering and electrical engineering;

as shown in fig. 3, for a data center, lightning protection grounding plays a crucial role, a TNS grounding system is required to be adopted according to the lightning protection technical specification of the electronic information system of the GB50343-2012 building, and equipment in a weak current computer room is required to be grounded to less than 1 Ω;

the traditional rail transit equipment is generally grounded at a 35KV cable interlayer position, and a PCE grounding busbar is provided on a structure-provided access structure grounding body;

as shown in fig. 4, the data room grounding generally adopts an S-type or M-type grounding scheme, and the two grounding schemes have the following problems:

the grounding defect of an S-shaped (star-shaped) machine room:

1. 16mm copper grounding cables are laid from a cabinet in the machine room to a grounding terminal box, the machine room provides a fixed number of grounding terminal boxes, and the longer the path in the cable introducing process, the worse the grounding effect of the equipment is caused to be farther from an access point;

2. the number of the laid cables is large, the cables need to be led into the cable troughs when laid below the cabinet, the cable trough purchasing cost is increased, the construction procedures are multiple, and the construction period is influenced;

3. a large amount of servers are installed in a data center cabinet, equipment heating capacity is large, in order to efficiently cool, an air conditioner adopts a lower air supply mode, an elastic plastic plate or other heat insulation materials need to be laid above ground insulating paint, under the condition that the number of cabinets is large, cables are laid into wire grooves, the wire grooves affect the ventilation effect, and equipment downtime is easily caused.

II, grounding defects of an M-shaped (grid-shaped) machine room:

and connecting the copper strip which is not smaller than 50mm and laid from the cabinet in the machine room into the grounding body and the cabinet. The copper strips are fixed above the insulators to provide the whole grounding network. When the copper strip is directly connected into the cabinet, the cabinet space is small, the copper strip is bent for multiple times, the copper strip is easily broken and is in virtual connection, the process is complex, and the construction period is seriously delayed;

in summary, the prior art has the problems of poor grounding effect and unstable grounding due to inconsistent grounding points and complex process.

Disclosure of Invention

The invention provides a matrix type lightning protection grounding system for an urban rail cloud platform machine room and an access method thereof, which are used for solving the problems that the grounding effect is worse and the grounding is unstable due to inconsistent grounding points and complex process in the prior art.

The technical problem solved by the invention is realized by adopting the following technical scheme: the utility model provides a city rail cloud platform computer lab matrix lightning protection ground system, includes the consumer of computer lab, the consumer passes through the equipotential of ground connection cable and the annular inserts matrix grounding body network.

Further, the ground cable includes two ground cables with a wire diameter of 10mm, and any one of the two ground cables is a spare fault cable.

Further, the matrix grounding body network is built by adopting a copper strip, the copper strip is preferably a 30x4mm copper strip, and the built matrix grounding body network is supported by a frame.

Furthermore, the cross position of the copper strip is fixed through a phi 10 insulator by welding, and the copper strip is fixed on the grounding cable through a galvanized bolt.

Further, the power consumption equipment comprises weak current equipment, and the weak current equipment is connected into the matrix type grounding body network through the WCE weak current busbar ring of the corresponding equipment terminal box.

Further, corresponding ground terminal boxes in the machine room and other equipment rooms are respectively connected with corresponding WCE weak current busbars connected with the matrix type grounding body network through 95mm ground cables.

Further, the resistance to ground of each electric device in the machine room is less than 0.2 omega.

Further, the grounding body network is directly connected to the lower side of the cabinet of the electric equipment.

Meanwhile, the invention also provides an access method of the matrix type lightning protection grounding system of the urban rail cloud platform machine room, which comprises the following steps:

building a matrix type grounding body network of the lightning protection grounding system through a copper strip;

fixing the copper strip cross position on the built matrix type grounding body network;

the built matrix type grounding body network is used for fixing a grounding cable led out by electric equipment in an equipotential and annular mode;

finally, the lightning protection grounding system is formed.

Further, the access method further comprises:

the copper strip crossing position of the built matrix type grounding body network is fixed through welding and an insulator;

and (4) fixing the grounding cable led out by the electric equipment on the built matrix grounding body network in an annular manner through the equipotential galvanized bolts.

The invention has the beneficial effects that:

1. according to the invention, the electric equipment is connected into the matrix type grounding body network in an equipotential and annular mode through the grounding cable, and the grounding network is formed by adopting an S-type and M-type combined mode, so that the cost is saved, the construction speed is increased, and the construction quality is ensured;

2. the scheme comprises the steps of building a matrix type grounding body network in a cloud platform center machine room and a disaster preparation center machine room, fixing a grounding cable by welding and a phi 10 insulator at a copper strip cross position, fixing the grounding cable by a galvanized bolt, ensuring the grounding integrity to be reliable by fixing the copper strip cross position above the phi 10 insulator (coating a resistance reducing agent), avoiding the influence of the structure on the grounding effect, ensuring the grounding integrity to be reliable by the copper strip with large surface contact area and uniform distribution, neglecting the influence of distance on the grounding network, ensuring the grounding resistance to be consistent below each machine cabinet, simultaneously, fixing the copper strip by the insulator, overcoming the influence of environment on the grounding, improving the grounding reliability, further ensuring the grounding integrity to be reliable, avoiding the influence of the structure on the grounding effect, ensuring the grounding resistance to be consistent below each machine cabinet by neglecting the influence of distance on the grounding network, the cabinet adopts two 10mm ground connection copper lines, inserts the copper strips top, forms annular ground, guarantees whole ground system's reliability, consequently, simplifies and has improved the stability of system.

Drawings

FIG. 1 is a schematic system structure diagram of a matrix type lightning protection grounding system of an urban rail cloud platform machine room according to the invention;

FIG. 2 is a partial enlarged view of the copper strip termination of the urban rail cloud platform computer room matrix type lightning protection grounding system of the invention;

FIG. 3 is a grounding system diagram of a grounding protection system TNS of a matrix type lightning protection grounding system of an urban rail cloud platform machine room according to the invention;

FIG. 4 is a diagram of a conventional data center grounding network of a matrix type lightning protection grounding system of an urban rail cloud platform machine room according to the present invention;

FIG. 5 is a data center system diagram of a matrix type lightning protection grounding system of an urban rail cloud platform machine room according to the invention;

fig. 6 is a cloud platform central office layout according to a second embodiment of the present invention;

fig. 7 is a disaster preparation center cloud platform machine room arrangement diagram according to a third embodiment of the present invention;

FIG. 8 is a diagram of a second embodiment of the installation of a center grounded copper strip for a cloud platform;

FIG. 9 is a diagram of the installation of a disaster recovery center grounded copper strip according to a third embodiment of the present invention;

FIG. 10 is an access flow chart of an access method of the matrix type lightning protection grounding system of the urban rail cloud platform machine room of the invention;

FIG. 11 is a rail transit grounding system diagram of a matrix type lightning protection grounding system of an urban rail cloud platform machine room according to the invention;

FIG. 12 is a production center cloud platform architecture diagram of the urban rail cloud platform computer room matrix lightning protection grounding system of the present invention;

fig. 13 is a disaster preparation center cloud platform architecture diagram of the urban rail cloud platform machine room matrix lightning protection grounding system of the invention.

In fig. 1:

101-consumer, 102-ground cable, 103-ground body network;

in fig. 2:

201-copper strip, 202-insulator, 203-galvanized bolt;

in fig. 10:

s101, building a matrix type grounding body network of the lightning protection grounding system through a copper strip;

s102, fixing the copper strip cross position on the built matrix type grounding body network;

s103, leading out a grounding cable which has equal potential and is led out from the built matrix grounding body network and is used for fixing electric equipment in an annular mode;

s104, finally forming the lightning protection grounding system.

Detailed Description

The invention is further described below with reference to the accompanying drawings: